| File: | build/gcc/cp/constexpr.cc |
| Warning: | line 6060, column 8 Called C++ object pointer is null |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* Perform -*- C++ -*- constant expression evaluation, including calls to |
| 2 | constexpr functions. These routines are used both during actual parsing |
| 3 | and during the instantiation of template functions. |
| 4 | |
| 5 | Copyright (C) 1998-2023 Free Software Foundation, Inc. |
| 6 | |
| 7 | This file is part of GCC. |
| 8 | |
| 9 | GCC is free software; you can redistribute it and/or modify it |
| 10 | under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3, or (at your option) |
| 12 | any later version. |
| 13 | |
| 14 | GCC is distributed in the hope that it will be useful, but |
| 15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with GCC; see the file COPYING3. If not see |
| 21 | <http://www.gnu.org/licenses/>. */ |
| 22 | |
| 23 | #include "config.h" |
| 24 | #include "system.h" |
| 25 | #include "coretypes.h" |
| 26 | #include "cp-tree.h" |
| 27 | #include "varasm.h" |
| 28 | #include "c-family/c-objc.h" |
| 29 | #include "tree-iterator.h" |
| 30 | #include "gimplify.h" |
| 31 | #include "builtins.h" |
| 32 | #include "tree-inline.h" |
| 33 | #include "ubsan.h" |
| 34 | #include "timevar.h" |
| 35 | #include "fold-const-call.h" |
| 36 | #include "stor-layout.h" |
| 37 | #include "cgraph.h" |
| 38 | #include "opts.h" |
| 39 | #include "stringpool.h" |
| 40 | #include "attribs.h" |
| 41 | #include "fold-const.h" |
| 42 | #include "intl.h" |
| 43 | #include "toplev.h" |
| 44 | |
| 45 | static bool verify_constant (tree, bool, bool *, bool *); |
| 46 | #define VERIFY_CONSTANT(X)do { if (verify_constant ((X), ctx->quiet, non_constant_p, overflow_p)) return t; } while (0) \ |
| 47 | do { \ |
| 48 | if (verify_constant ((X), ctx->quiet, non_constant_p, overflow_p)) \ |
| 49 | return t; \ |
| 50 | } while (0) |
| 51 | |
| 52 | static HOST_WIDE_INTlong find_array_ctor_elt (tree ary, tree dindex, |
| 53 | bool insert = false); |
| 54 | static int array_index_cmp (tree key, tree index); |
| 55 | |
| 56 | /* Returns true iff FUN is an instantiation of a constexpr function |
| 57 | template or a defaulted constexpr function. */ |
| 58 | |
| 59 | bool |
| 60 | is_instantiation_of_constexpr (tree fun) |
| 61 | { |
| 62 | return ((DECL_TEMPLOID_INSTANTIATION (fun)(((((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 62, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template) & 1) || (((contains_struct_check ((fun), ( TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 62, __FUNCTION__))->decl_common.lang_specific) && (((contains_struct_check ((template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 62, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 62, __FUNCTION__))->decl_common.lang_specific) ->u.min .template_info) && !(((contains_struct_check ((fun), ( TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 62, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template))) |
| 63 | && DECL_DECLARED_CONSTEXPR_P (DECL_TI_TEMPLATE (fun))((contains_struct_check (((tree_check2 (((((enum tree_code) ( ((struct tree_template_info*)(tree_check (((((contains_struct_check ((template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__))->decl_common.lang_specific) ->u.min .template_info)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__, (TEMPLATE_INFO))))->tmpl)->base.code ) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast <union tree_node *> ((((tree_check ((((struct tree_template_info *)(tree_check (((((contains_struct_check ((template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__))->decl_common.lang_specific) ->u.min .template_info)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__, (TEMPLATE_INFO))))->tmpl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__, (TEMPLATE_DECL))))))))->result : ((struct tree_template_info*)(tree_check (((((contains_struct_check ( (template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__))->decl_common.lang_specific) ->u.min .template_info)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__, (TEMPLATE_INFO))))->tmpl)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 63, __FUNCTION__))->decl_common.lang_flag_8)) |
| 64 | || (DECL_DEFAULTED_FN (fun)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 64, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun)) , (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 64, __FUNCTION__))->decl_common.lang_specific); if (!((( enum tree_code) (fun)->base.code) == FUNCTION_DECL || (((enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ( (struct tree_template_decl *)(const_cast<union tree_node * > ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 64, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 64, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 64, __FUNCTION__); <->u.fn; })->defaulted_p) |
| 65 | && DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 65, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun)) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 65, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 65, __FUNCTION__))->decl_common.lang_flag_8))); |
| 66 | } |
| 67 | |
| 68 | /* Return true if T is a literal type. */ |
| 69 | |
| 70 | bool |
| 71 | literal_type_p (tree t) |
| 72 | { |
| 73 | if (SCALAR_TYPE_P (t)((((enum tree_code) (t)->base.code) == OFFSET_TYPE) || ((enum tree_code) (t)->base.code) == ENUMERAL_TYPE || ((((enum tree_code ) (t)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (t) ->base.code) == INTEGER_TYPE) || ((enum tree_code) (t)-> base.code) == REAL_TYPE || ((enum tree_code) (t)->base.code ) == COMPLEX_TYPE) || (((enum tree_code) (t)->base.code) == POINTER_TYPE) || (((enum tree_code) (t)->base.code) == RECORD_TYPE && (((tree_class_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 73, __FUNCTION__, (RECORD_TYPE)))), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 73, __FUNCTION__))->type_common.lang_flag_2))) || (((enum tree_code) (t)->base.code) == NULLPTR_TYPE)) |
| 74 | || VECTOR_TYPE_P (t)(((enum tree_code) (t)->base.code) == VECTOR_TYPE) |
| 75 | || TYPE_REF_P (t)(((enum tree_code) (t)->base.code) == REFERENCE_TYPE) |
| 76 | || (VOID_TYPE_P (t)(((enum tree_code) (t)->base.code) == VOID_TYPE) && cxx_dialect >= cxx14)) |
| 77 | return true; |
| 78 | if (CLASS_TYPE_P (t)(((((enum tree_code) (t)->base.code)) == RECORD_TYPE || (( (enum tree_code) (t)->base.code)) == UNION_TYPE) && ((tree_class_check ((t), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 78, __FUNCTION__))->type_common.lang_flag_5))) |
| 79 | { |
| 80 | t = complete_type (t); |
| 81 | gcc_assert (COMPLETE_TYPE_P (t) || errorcount)((void)(!((((tree_class_check ((t), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 81, __FUNCTION__))->type_common.size) != (tree) __null) || (global_dc)->diagnostic_count[(int) (DK_ERROR)]) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 81, __FUNCTION__), 0 : 0)); |
| 82 | return CLASSTYPE_LITERAL_P (t)((((tree_class_check ((t), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 82, __FUNCTION__))->type_with_lang_specific.lang_specific ))->is_literal); |
| 83 | } |
| 84 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == ARRAY_TYPE) |
| 85 | return literal_type_p (strip_array_types (t)); |
| 86 | return false; |
| 87 | } |
| 88 | |
| 89 | /* If DECL is a variable declared `constexpr', require its type |
| 90 | be literal. Return error_mark_node if we give an error, the |
| 91 | DECL otherwise. */ |
| 92 | |
| 93 | tree |
| 94 | ensure_literal_type_for_constexpr_object (tree decl) |
| 95 | { |
| 96 | tree type = TREE_TYPE (decl)((contains_struct_check ((decl), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 96, __FUNCTION__))->typed.type); |
| 97 | if (VAR_P (decl)(((enum tree_code) (decl)->base.code) == VAR_DECL) |
| 98 | && (DECL_DECLARED_CONSTEXPR_P (decl)((contains_struct_check (((tree_check2 (((((enum tree_code) ( decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((decl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 98, __FUNCTION__, (TEMPLATE_DECL))))))))->result : decl) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 98, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 98, __FUNCTION__))->decl_common.lang_flag_8) |
| 99 | || var_in_constexpr_fn (decl)) |
| 100 | && !processing_template_declscope_chain->x_processing_template_decl) |
| 101 | { |
| 102 | tree stype = strip_array_types (type); |
| 103 | if (CLASS_TYPE_P (stype)(((((enum tree_code) (stype)->base.code)) == RECORD_TYPE || (((enum tree_code) (stype)->base.code)) == UNION_TYPE) && ((tree_class_check ((stype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 103, __FUNCTION__))->type_common.lang_flag_5)) && !COMPLETE_TYPE_P (complete_type (stype))(((tree_class_check ((complete_type (stype)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 103, __FUNCTION__))->type_common.size) != (tree) __null)) |
| 104 | /* Don't complain here, we'll complain about incompleteness |
| 105 | when we try to initialize the variable. */; |
| 106 | else if (!literal_type_p (type)) |
| 107 | { |
| 108 | if (DECL_DECLARED_CONSTEXPR_P (decl)((contains_struct_check (((tree_check2 (((((enum tree_code) ( decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((decl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 108, __FUNCTION__, (TEMPLATE_DECL))))))))->result : decl )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 108, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 108, __FUNCTION__))->decl_common.lang_flag_8)) |
| 109 | { |
| 110 | auto_diagnostic_group d; |
| 111 | error_at (DECL_SOURCE_LOCATION (decl)((contains_struct_check ((decl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 111, __FUNCTION__))->decl_minimal.locus), |
| 112 | "the type %qT of %<constexpr%> variable %qD " |
| 113 | "is not literal", type, decl); |
| 114 | explain_non_literal_class (type); |
| 115 | decl = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 116 | } |
| 117 | else if (cxx_dialect < cxx23) |
| 118 | { |
| 119 | if (!is_instantiation_of_constexpr (current_function_decl)) |
| 120 | { |
| 121 | auto_diagnostic_group d; |
| 122 | error_at (DECL_SOURCE_LOCATION (decl)((contains_struct_check ((decl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 122, __FUNCTION__))->decl_minimal.locus), |
| 123 | "variable %qD of non-literal type %qT in " |
| 124 | "%<constexpr%> function only available with " |
| 125 | "%<-std=c++2b%> or %<-std=gnu++2b%>", decl, type); |
| 126 | explain_non_literal_class (type); |
| 127 | decl = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 128 | } |
| 129 | cp_function_chain((cfun + 0)->language)->invalid_constexpr = true; |
| 130 | } |
| 131 | } |
| 132 | else if (DECL_DECLARED_CONSTEXPR_P (decl)((contains_struct_check (((tree_check2 (((((enum tree_code) ( decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((decl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 132, __FUNCTION__, (TEMPLATE_DECL))))))))->result : decl )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 132, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 132, __FUNCTION__))->decl_common.lang_flag_8) |
| 133 | && variably_modified_type_p (type, NULL_TREE(tree) __null)) |
| 134 | { |
| 135 | error_at (DECL_SOURCE_LOCATION (decl)((contains_struct_check ((decl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 135, __FUNCTION__))->decl_minimal.locus), |
| 136 | "%<constexpr%> variable %qD has variably-modified " |
| 137 | "type %qT", decl, type); |
| 138 | decl = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 139 | } |
| 140 | } |
| 141 | return decl; |
| 142 | } |
| 143 | |
| 144 | /* Issue a diagnostic with text GMSGID for constructs that are invalid in |
| 145 | constexpr functions. CONSTEXPR_FUNDEF_P is true if we're checking |
| 146 | a constexpr function body; if so, don't report hard errors and issue |
| 147 | a pedwarn pre-C++23, or a warning in C++23, if requested by |
| 148 | -Winvalid-constexpr. Otherwise, we're not in the context where we are |
| 149 | checking if a function can be marked 'constexpr', so give a hard error. */ |
| 150 | |
| 151 | ATTRIBUTE_GCC_DIAG(3,4)__attribute__ ((__format__ (__gcc_cxxdiag__, 3, 4))) __attribute__ ((__nonnull__ (3))) |
| 152 | static bool |
| 153 | constexpr_error (location_t location, bool constexpr_fundef_p, |
| 154 | const char *gmsgid, ...) |
| 155 | { |
| 156 | diagnostic_info diagnostic; |
| 157 | va_list ap; |
| 158 | rich_location richloc (line_table, location); |
| 159 | va_start (ap, gmsgid)__builtin_va_start(ap, gmsgid); |
| 160 | bool ret; |
| 161 | if (!constexpr_fundef_p) |
| 162 | { |
| 163 | /* Report an error that cannot be suppressed. */ |
| 164 | diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_ERROR); |
| 165 | ret = diagnostic_report_diagnostic (global_dc, &diagnostic); |
| 166 | } |
| 167 | else if (warn_invalid_constexprglobal_options.x_warn_invalid_constexpr) |
| 168 | { |
| 169 | diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, |
| 170 | cxx_dialect < cxx23 ? DK_PEDWARN : DK_WARNING); |
| 171 | diagnostic.option_index = OPT_Winvalid_constexpr; |
| 172 | ret = diagnostic_report_diagnostic (global_dc, &diagnostic); |
| 173 | } |
| 174 | else |
| 175 | ret = false; |
| 176 | va_end (ap)__builtin_va_end(ap); |
| 177 | return ret; |
| 178 | } |
| 179 | |
| 180 | struct constexpr_fundef_hasher : ggc_ptr_hash<constexpr_fundef> |
| 181 | { |
| 182 | static hashval_t hash (const constexpr_fundef *); |
| 183 | static bool equal (const constexpr_fundef *, const constexpr_fundef *); |
| 184 | }; |
| 185 | |
| 186 | /* This table holds all constexpr function definitions seen in |
| 187 | the current translation unit. */ |
| 188 | |
| 189 | static GTY (()) hash_table<constexpr_fundef_hasher> *constexpr_fundef_table; |
| 190 | |
| 191 | /* Utility function used for managing the constexpr function table. |
| 192 | Return true if the entries pointed to by P and Q are for the |
| 193 | same constexpr function. */ |
| 194 | |
| 195 | inline bool |
| 196 | constexpr_fundef_hasher::equal (const constexpr_fundef *lhs, |
| 197 | const constexpr_fundef *rhs) |
| 198 | { |
| 199 | return lhs->decl == rhs->decl; |
| 200 | } |
| 201 | |
| 202 | /* Utility function used for managing the constexpr function table. |
| 203 | Return a hash value for the entry pointed to by Q. */ |
| 204 | |
| 205 | inline hashval_t |
| 206 | constexpr_fundef_hasher::hash (const constexpr_fundef *fundef) |
| 207 | { |
| 208 | return DECL_UID (fundef->decl)((contains_struct_check ((fundef->decl), (TS_DECL_MINIMAL) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 208, __FUNCTION__))->decl_minimal.uid); |
| 209 | } |
| 210 | |
| 211 | /* Return a previously saved definition of function FUN. */ |
| 212 | |
| 213 | constexpr_fundef * |
| 214 | retrieve_constexpr_fundef (tree fun) |
| 215 | { |
| 216 | if (constexpr_fundef_table == NULL__null) |
| 217 | return NULL__null; |
| 218 | |
| 219 | constexpr_fundef fundef = { fun, NULL_TREE(tree) __null, NULL_TREE(tree) __null, NULL_TREE(tree) __null }; |
| 220 | return constexpr_fundef_table->find (&fundef); |
| 221 | } |
| 222 | |
| 223 | /* Check whether the parameter and return types of FUN are valid for a |
| 224 | constexpr function, and complain if COMPLAIN. */ |
| 225 | |
| 226 | bool |
| 227 | is_valid_constexpr_fn (tree fun, bool complain) |
| 228 | { |
| 229 | bool ret = true; |
| 230 | |
| 231 | if (DECL_INHERITED_CTOR (fun)((((enum tree_code) (fun)->base.code) == FUNCTION_DECL || ( ((enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) && ((tree_check (((((enum tree_code ) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) ? __extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__))->decl_common.lang_specific); if (!(( (enum tree_code) (fun)->base.code) == FUNCTION_DECL || ((( enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 231, __FUNCTION__); <->u.fn; })->context : (tree ) __null) |
| 232 | && TREE_CODE (fun)((enum tree_code) (fun)->base.code) == TEMPLATE_DECL) |
| 233 | { |
| 234 | ret = false; |
| 235 | if (complain) |
| 236 | error ("inherited constructor %qD is not %<constexpr%>", |
| 237 | DECL_INHERITED_CTOR (fun)((((enum tree_code) (fun)->base.code) == FUNCTION_DECL || ( ((enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) && ((tree_check (((((enum tree_code ) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) ? __extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__))->decl_common.lang_specific); if (!(( (enum tree_code) (fun)->base.code) == FUNCTION_DECL || ((( enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 237, __FUNCTION__); <->u.fn; })->context : (tree ) __null)); |
| 238 | } |
| 239 | else |
| 240 | { |
| 241 | for (tree parm = FUNCTION_FIRST_USER_PARM (fun)skip_artificial_parms_for ((fun), ((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 241, __FUNCTION__, (FUNCTION_DECL)))->function_decl.arguments )); |
| 242 | parm != NULL_TREE(tree) __null; parm = TREE_CHAIN (parm)((contains_struct_check ((parm), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 242, __FUNCTION__))->common.chain)) |
| 243 | if (!literal_type_p (TREE_TYPE (parm)((contains_struct_check ((parm), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 243, __FUNCTION__))->typed.type))) |
| 244 | { |
| 245 | ret = false; |
| 246 | if (complain) |
| 247 | { |
| 248 | auto_diagnostic_group d; |
| 249 | if (constexpr_error (input_location, /*constexpr_fundef_p*/true, |
| 250 | "invalid type for parameter %d of " |
| 251 | "%<constexpr%> function %q+#D", |
| 252 | DECL_PARM_INDEX (parm)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check ((parm), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 252, __FUNCTION__))->decl_common.lang_specific); if (((enum tree_code) (parm)->base.code) != PARM_DECL || lt->u.base .selector != lds_parm) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 252, __FUNCTION__); <->u.parm; })->index), fun)) |
| 253 | explain_non_literal_class (TREE_TYPE (parm)((contains_struct_check ((parm), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 253, __FUNCTION__))->typed.type)); |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | if (LAMBDA_TYPE_P (CP_DECL_CONTEXT (fun))(((enum tree_code) ((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL]))->base.code) == RECORD_TYPE && (((( tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name))->base.code))] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name))) && ((tree_check ((((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name))->base.code))] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__))->type_common.name)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 258, __FUNCTION__, (IDENTIFIER_NODE)))->base.protected_flag )) && cxx_dialect < cxx17) |
| 259 | { |
| 260 | ret = false; |
| 261 | if (complain) |
| 262 | inform (DECL_SOURCE_LOCATION (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 262, __FUNCTION__))->decl_minimal.locus), |
| 263 | "lambdas are implicitly %<constexpr%> only in C++17 and later"); |
| 264 | } |
| 265 | else if (DECL_DESTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 265, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 265, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_destructor )) |
| 266 | { |
| 267 | if (cxx_dialect < cxx20) |
| 268 | { |
| 269 | ret = false; |
| 270 | if (complain) |
| 271 | error_at (DECL_SOURCE_LOCATION (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 271, __FUNCTION__))->decl_minimal.locus), |
| 272 | "%<constexpr%> destructors only available" |
| 273 | " with %<-std=c++20%> or %<-std=gnu++20%>"); |
| 274 | } |
| 275 | } |
| 276 | else if (!DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 276, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 276, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 277 | { |
| 278 | tree rettype = TREE_TYPE (TREE_TYPE (fun))((contains_struct_check ((((contains_struct_check ((fun), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 278, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 278, __FUNCTION__))->typed.type); |
| 279 | if (!literal_type_p (rettype)) |
| 280 | { |
| 281 | ret = false; |
| 282 | if (complain) |
| 283 | { |
| 284 | auto_diagnostic_group d; |
| 285 | if (constexpr_error (input_location, /*constexpr_fundef_p*/true, |
| 286 | "invalid return type %qT of %<constexpr%> " |
| 287 | "function %q+D", rettype, fun)) |
| 288 | explain_non_literal_class (rettype); |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | /* C++14 DR 1684 removed this restriction. */ |
| 293 | if (cxx_dialect < cxx14 |
| 294 | && DECL_NONSTATIC_MEMBER_FUNCTION_P (fun)(((enum tree_code) (((contains_struct_check ((fun), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 294, __FUNCTION__))->typed.type))->base.code) == METHOD_TYPE ) |
| 295 | && !CLASSTYPE_LITERAL_P (DECL_CONTEXT (fun))((((tree_class_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 295, __FUNCTION__))->decl_minimal.context)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 295, __FUNCTION__))->type_with_lang_specific.lang_specific ))->is_literal)) |
| 296 | { |
| 297 | ret = false; |
| 298 | if (complain) |
| 299 | { |
| 300 | auto_diagnostic_group d; |
| 301 | if (pedwarn (DECL_SOURCE_LOCATION (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 301, __FUNCTION__))->decl_minimal.locus), OPT_Wpedantic, |
| 302 | "enclosing class of %<constexpr%> non-static" |
| 303 | " member function %q+#D is not a literal type", |
| 304 | fun)) |
| 305 | explain_non_literal_class (DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 305, __FUNCTION__))->decl_minimal.context)); |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | else if (CLASSTYPE_VBASECLASSES (DECL_CONTEXT (fun))((((tree_class_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 309, __FUNCTION__))->decl_minimal.context)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 309, __FUNCTION__))->type_with_lang_specific.lang_specific ))->vbases)) |
| 310 | { |
| 311 | ret = false; |
| 312 | if (complain) |
| 313 | error ("%q#T has virtual base classes", DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 313, __FUNCTION__))->decl_minimal.context)); |
| 314 | } |
| 315 | |
| 316 | return ret; |
| 317 | } |
| 318 | |
| 319 | /* Subroutine of build_data_member_initialization. MEMBER is a COMPONENT_REF |
| 320 | for a member of an anonymous aggregate, INIT is the initializer for that |
| 321 | member, and VEC_OUTER is the vector of constructor elements for the class |
| 322 | whose constructor we are processing. Add the initializer to the vector |
| 323 | and return true to indicate success. */ |
| 324 | |
| 325 | static bool |
| 326 | build_anon_member_initialization (tree member, tree init, |
| 327 | vec<constructor_elt, va_gc> **vec_outer) |
| 328 | { |
| 329 | /* MEMBER presents the relevant fields from the inside out, but we need |
| 330 | to build up the initializer from the outside in so that we can reuse |
| 331 | previously built CONSTRUCTORs if this is, say, the second field in an |
| 332 | anonymous struct. So we use a vec as a stack. */ |
| 333 | auto_vec<tree, 2> fields; |
| 334 | do |
| 335 | { |
| 336 | fields.safe_push (TREE_OPERAND (member, 1)(*((const_cast<tree*> (tree_operand_check ((member), (1 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 336, __FUNCTION__)))))); |
| 337 | member = TREE_OPERAND (member, 0)(*((const_cast<tree*> (tree_operand_check ((member), (0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 337, __FUNCTION__))))); |
| 338 | } |
| 339 | while (ANON_AGGR_TYPE_P (TREE_TYPE (member))((((((enum tree_code) (((contains_struct_check ((member), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((member), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((member ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((((contains_struct_check ((member), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 339, __FUNCTION__))->type_with_lang_specific.lang_specific ))->anon_aggr) |
| 340 | && TREE_CODE (member)((enum tree_code) (member)->base.code) == COMPONENT_REF); |
| 341 | |
| 342 | /* VEC has the constructor elements vector for the context of FIELD. |
| 343 | If FIELD is an anonymous aggregate, we will push inside it. */ |
| 344 | vec<constructor_elt, va_gc> **vec = vec_outer; |
| 345 | tree field; |
| 346 | while (field = fields.pop(), |
| 347 | ANON_AGGR_TYPE_P (TREE_TYPE (field))((((((enum tree_code) (((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((field ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 347, __FUNCTION__))->type_with_lang_specific.lang_specific ))->anon_aggr)) |
| 348 | { |
| 349 | tree ctor; |
| 350 | /* If there is already an outer constructor entry for the anonymous |
| 351 | aggregate FIELD, use it; otherwise, insert one. */ |
| 352 | if (vec_safe_is_empty (*vec) |
| 353 | || (*vec)->last().index != field) |
| 354 | { |
| 355 | ctor = build_constructor (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 355, __FUNCTION__))->typed.type), NULL__null); |
| 356 | CONSTRUCTOR_APPEND_ELT (*vec, field, ctor)do { constructor_elt _ce___ = {field, ctor}; vec_safe_push (( *vec), _ce___); } while (0); |
| 357 | } |
| 358 | else |
| 359 | ctor = (*vec)->last().value; |
| 360 | vec = &CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 360, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 361 | } |
| 362 | |
| 363 | /* Now we're at the innermost field, the one that isn't an anonymous |
| 364 | aggregate. Add its initializer to the CONSTRUCTOR and we're done. */ |
| 365 | gcc_assert (fields.is_empty())((void)(!(fields.is_empty()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 365, __FUNCTION__), 0 : 0)); |
| 366 | CONSTRUCTOR_APPEND_ELT (*vec, field, init)do { constructor_elt _ce___ = {field, init}; vec_safe_push (( *vec), _ce___); } while (0); |
| 367 | |
| 368 | return true; |
| 369 | } |
| 370 | |
| 371 | /* Subroutine of build_constexpr_constructor_member_initializers. |
| 372 | The expression tree T represents a data member initialization |
| 373 | in a (constexpr) constructor definition. Build a pairing of |
| 374 | the data member with its initializer, and prepend that pair |
| 375 | to the existing initialization pair INITS. */ |
| 376 | |
| 377 | static bool |
| 378 | build_data_member_initialization (tree t, vec<constructor_elt, va_gc> **vec) |
| 379 | { |
| 380 | tree member, init; |
| 381 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CLEANUP_POINT_EXPR) |
| 382 | t = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 382, __FUNCTION__))))); |
| 383 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == EXPR_STMT) |
| 384 | t = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 384, __FUNCTION__))))); |
| 385 | if (t == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 386 | return false; |
| 387 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == STATEMENT_LIST) |
| 388 | { |
| 389 | for (tree stmt : tsi_range (t)) |
| 390 | if (! build_data_member_initialization (stmt, vec)) |
| 391 | return false; |
| 392 | return true; |
| 393 | } |
| 394 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CLEANUP_STMT) |
| 395 | { |
| 396 | /* We can't see a CLEANUP_STMT in a constructor for a literal class, |
| 397 | but we can in a constexpr constructor for a non-literal class. Just |
| 398 | ignore it; either all the initialization will be constant, in which |
| 399 | case the cleanup can't run, or it can't be constexpr. |
| 400 | Still recurse into CLEANUP_BODY. */ |
| 401 | return build_data_member_initialization (CLEANUP_BODY (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 401, __FUNCTION__, (CLEANUP_STMT)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 401, __FUNCTION__))))), vec); |
| 402 | } |
| 403 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CONVERT_EXPR) |
| 404 | t = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 404, __FUNCTION__))))); |
| 405 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == INIT_EXPR |
| 406 | /* vptr initialization shows up as a MODIFY_EXPR. In C++14 we only |
| 407 | use what this function builds for cx_check_missing_mem_inits, and |
| 408 | assignment in the ctor body doesn't count. */ |
| 409 | || (cxx_dialect < cxx14 && TREE_CODE (t)((enum tree_code) (t)->base.code) == MODIFY_EXPR)) |
| 410 | { |
| 411 | member = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 411, __FUNCTION__))))); |
| 412 | init = break_out_target_exprs (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 412, __FUNCTION__)))))); |
| 413 | } |
| 414 | else if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CALL_EXPR) |
| 415 | { |
| 416 | tree fn = get_callee_fndecl (t); |
| 417 | if (!fn || !DECL_CONSTRUCTOR_P (fn)((tree_check (((((enum tree_code) (fn)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fn), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 417, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fn)) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 417, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 418 | /* We're only interested in calls to subobject constructors. */ |
| 419 | return true; |
| 420 | member = CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 420, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 420, __FUNCTION__))))); |
| 421 | /* We don't use build_cplus_new here because it complains about |
| 422 | abstract bases. Leaving the call unwrapped means that it has the |
| 423 | wrong type, but cxx_eval_constant_expression doesn't care. */ |
| 424 | init = break_out_target_exprs (t); |
| 425 | } |
| 426 | else if (TREE_CODE (t)((enum tree_code) (t)->base.code) == BIND_EXPR) |
| 427 | return build_data_member_initialization (BIND_EXPR_BODY (t)((*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 427, __FUNCTION__, (BIND_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 427, __FUNCTION__)))))), vec); |
| 428 | else |
| 429 | /* Don't add anything else to the CONSTRUCTOR. */ |
| 430 | return true; |
| 431 | if (INDIRECT_REF_P (member)(((enum tree_code) (member)->base.code) == INDIRECT_REF)) |
| 432 | member = TREE_OPERAND (member, 0)(*((const_cast<tree*> (tree_operand_check ((member), (0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 432, __FUNCTION__))))); |
| 433 | if (TREE_CODE (member)((enum tree_code) (member)->base.code) == NOP_EXPR) |
| 434 | { |
| 435 | tree op = member; |
| 436 | STRIP_NOPS (op)(op) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((op))))); |
| 437 | if (TREE_CODE (op)((enum tree_code) (op)->base.code) == ADDR_EXPR) |
| 438 | { |
| 439 | gcc_assert (same_type_ignoring_top_level_qualifiers_p((void)(!(same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((((contains_struct_check ((op), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type), ((contains_struct_check ((((contains_struct_check ((member), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__), 0 : 0)) |
| 440 | (TREE_TYPE (TREE_TYPE (op)),((void)(!(same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((((contains_struct_check ((op), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type), ((contains_struct_check ((((contains_struct_check ((member), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__), 0 : 0)) |
| 441 | TREE_TYPE (TREE_TYPE (member))))((void)(!(same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((((contains_struct_check ((op), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 440, __FUNCTION__))->typed.type), ((contains_struct_check ((((contains_struct_check ((member), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 441, __FUNCTION__), 0 : 0)); |
| 442 | /* Initializing a cv-qualified member; we need to look through |
| 443 | the const_cast. */ |
| 444 | member = op; |
| 445 | } |
| 446 | else if (op == current_class_ptr(*((cfun + 0) && ((cfun + 0)->language) ? &((cfun + 0)->language)->x_current_class_ptr : &scope_chain ->x_current_class_ptr)) |
| 447 | && (same_type_ignoring_top_level_qualifiers_p |
| 448 | (TREE_TYPE (TREE_TYPE (member))((contains_struct_check ((((contains_struct_check ((member), ( TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 448, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 448, __FUNCTION__))->typed.type), |
| 449 | current_class_typescope_chain->class_type))) |
| 450 | /* Delegating constructor. */ |
| 451 | member = op; |
| 452 | else |
| 453 | { |
| 454 | /* This is an initializer for an empty base; keep it for now so |
| 455 | we can check it in cxx_eval_bare_aggregate. */ |
| 456 | gcc_assert (is_empty_class (TREE_TYPE (TREE_TYPE (member))))((void)(!(is_empty_class (((contains_struct_check ((((contains_struct_check ((member), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 456, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 456, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 456, __FUNCTION__), 0 : 0)); |
| 457 | } |
| 458 | } |
| 459 | if (TREE_CODE (member)((enum tree_code) (member)->base.code) == ADDR_EXPR) |
| 460 | member = TREE_OPERAND (member, 0)(*((const_cast<tree*> (tree_operand_check ((member), (0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 460, __FUNCTION__))))); |
| 461 | if (TREE_CODE (member)((enum tree_code) (member)->base.code) == COMPONENT_REF) |
| 462 | { |
| 463 | tree aggr = TREE_OPERAND (member, 0)(*((const_cast<tree*> (tree_operand_check ((member), (0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 463, __FUNCTION__))))); |
| 464 | if (TREE_CODE (aggr)((enum tree_code) (aggr)->base.code) == VAR_DECL) |
| 465 | /* Initializing a local variable, don't add anything. */ |
| 466 | return true; |
| 467 | if (TREE_CODE (aggr)((enum tree_code) (aggr)->base.code) != COMPONENT_REF) |
| 468 | /* Normal member initialization. */ |
| 469 | member = TREE_OPERAND (member, 1)(*((const_cast<tree*> (tree_operand_check ((member), (1 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 469, __FUNCTION__))))); |
| 470 | else if (ANON_AGGR_TYPE_P (TREE_TYPE (aggr))((((((enum tree_code) (((contains_struct_check ((aggr), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((aggr), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((aggr ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((((contains_struct_check ((aggr), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 470, __FUNCTION__))->type_with_lang_specific.lang_specific ))->anon_aggr)) |
| 471 | /* Initializing a member of an anonymous union. */ |
| 472 | return build_anon_member_initialization (member, init, vec); |
| 473 | else |
| 474 | /* We're initializing a vtable pointer in a base. Leave it as |
| 475 | COMPONENT_REF so we remember the path to get to the vfield. */ |
| 476 | gcc_assert (TREE_TYPE (member) == vtbl_ptr_type_node)((void)(!(((contains_struct_check ((member), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 476, __FUNCTION__))->typed.type) == cp_global_trees[CPTI_VTBL_PTR_TYPE ]) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 476, __FUNCTION__), 0 : 0)); |
| 477 | } |
| 478 | |
| 479 | /* Value-initialization can produce multiple initializers for the |
| 480 | same field; use the last one. */ |
| 481 | if (!vec_safe_is_empty (*vec) && (*vec)->last().index == member) |
| 482 | (*vec)->last().value = init; |
| 483 | else |
| 484 | CONSTRUCTOR_APPEND_ELT (*vec, member, init)do { constructor_elt _ce___ = {member, init}; vec_safe_push ( (*vec), _ce___); } while (0); |
| 485 | return true; |
| 486 | } |
| 487 | |
| 488 | /* Subroutine of check_constexpr_ctor_body_1 and constexpr_fn_retval. |
| 489 | In C++11 mode checks that the TYPE_DECLs in the BIND_EXPR_VARS of a |
| 490 | BIND_EXPR conform to 7.1.5/3/4 on typedef and alias declarations. */ |
| 491 | |
| 492 | static bool |
| 493 | check_constexpr_bind_expr_vars (tree t) |
| 494 | { |
| 495 | gcc_assert (TREE_CODE (t) == BIND_EXPR)((void)(!(((enum tree_code) (t)->base.code) == BIND_EXPR) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 495, __FUNCTION__), 0 : 0)); |
| 496 | |
| 497 | for (tree var = BIND_EXPR_VARS (t)((*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 497, __FUNCTION__, (BIND_EXPR)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 497, __FUNCTION__)))))); var; var = DECL_CHAIN (var)(((contains_struct_check (((contains_struct_check ((var), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 497, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 497, __FUNCTION__))->common.chain))) |
| 498 | if (TREE_CODE (var)((enum tree_code) (var)->base.code) == TYPE_DECL |
| 499 | && DECL_IMPLICIT_TYPEDEF_P (var)(((enum tree_code) (var)->base.code) == TYPE_DECL && ((contains_struct_check ((var), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 499, __FUNCTION__))->decl_common.lang_flag_2)) |
| 500 | && !LAMBDA_TYPE_P (TREE_TYPE (var))(((enum tree_code) (((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type))->base.code) == RECORD_TYPE && ((((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name))->base.code))] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name))) && ((tree_check ((((((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name))->base.code))] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check ((((contains_struct_check ((var), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__))->type_common.name)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 500, __FUNCTION__, (IDENTIFIER_NODE)))->base.protected_flag ))) |
| 501 | return false; |
| 502 | return true; |
| 503 | } |
| 504 | |
| 505 | /* Subroutine of check_constexpr_ctor_body. */ |
| 506 | |
| 507 | static bool |
| 508 | check_constexpr_ctor_body_1 (tree last, tree list) |
| 509 | { |
| 510 | switch (TREE_CODE (list)((enum tree_code) (list)->base.code)) |
| 511 | { |
| 512 | case DECL_EXPR: |
| 513 | if (TREE_CODE (DECL_EXPR_DECL (list))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check (((tree_check ((list), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 513, __FUNCTION__, (DECL_EXPR)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 513, __FUNCTION__))))))->base.code) == USING_DECL |
| 514 | || TREE_CODE (DECL_EXPR_DECL (list))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check (((tree_check ((list), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 514, __FUNCTION__, (DECL_EXPR)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 514, __FUNCTION__))))))->base.code) == TYPE_DECL) |
| 515 | return true; |
| 516 | return false; |
| 517 | |
| 518 | case CLEANUP_POINT_EXPR: |
| 519 | return check_constexpr_ctor_body (last, TREE_OPERAND (list, 0)(*((const_cast<tree*> (tree_operand_check ((list), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 519, __FUNCTION__))))), |
| 520 | /*complain=*/false); |
| 521 | |
| 522 | case BIND_EXPR: |
| 523 | if (!check_constexpr_bind_expr_vars (list) |
| 524 | || !check_constexpr_ctor_body (last, BIND_EXPR_BODY (list)((*((const_cast<tree*> (tree_operand_check (((tree_check ((list), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 524, __FUNCTION__, (BIND_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 524, __FUNCTION__)))))), |
| 525 | /*complain=*/false)) |
| 526 | return false; |
| 527 | return true; |
| 528 | |
| 529 | case USING_STMT: |
| 530 | case STATIC_ASSERT: |
| 531 | case DEBUG_BEGIN_STMT: |
| 532 | return true; |
| 533 | |
| 534 | default: |
| 535 | return false; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | /* Make sure that there are no statements after LAST in the constructor |
| 540 | body represented by LIST. */ |
| 541 | |
| 542 | bool |
| 543 | check_constexpr_ctor_body (tree last, tree list, bool complain) |
| 544 | { |
| 545 | /* C++14 doesn't require a constexpr ctor to have an empty body. */ |
| 546 | if (cxx_dialect >= cxx14) |
| 547 | return true; |
| 548 | |
| 549 | bool ok = true; |
| 550 | if (TREE_CODE (list)((enum tree_code) (list)->base.code) == STATEMENT_LIST) |
| 551 | { |
| 552 | tree_stmt_iterator i = tsi_last (list); |
| 553 | for (; !tsi_end_p (i); tsi_prev (&i)) |
| 554 | { |
| 555 | tree t = tsi_stmt (i); |
| 556 | if (t == last) |
| 557 | break; |
| 558 | if (!check_constexpr_ctor_body_1 (last, t)) |
| 559 | { |
| 560 | ok = false; |
| 561 | break; |
| 562 | } |
| 563 | } |
| 564 | } |
| 565 | else if (list != last |
| 566 | && !check_constexpr_ctor_body_1 (last, list)) |
| 567 | ok = false; |
| 568 | if (!ok) |
| 569 | { |
| 570 | if (complain) |
| 571 | error ("%<constexpr%> constructor does not have empty body"); |
| 572 | DECL_DECLARED_CONSTEXPR_P (current_function_decl)((contains_struct_check (((tree_check2 (((((enum tree_code) ( current_function_decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> (( ((tree_check ((current_function_decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 572, __FUNCTION__, (TEMPLATE_DECL))))))))->result : current_function_decl )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 572, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 572, __FUNCTION__))->decl_common.lang_flag_8) = false; |
| 573 | } |
| 574 | return ok; |
| 575 | } |
| 576 | |
| 577 | /* V is a vector of constructor elements built up for the base and member |
| 578 | initializers of a constructor for TYPE. They need to be in increasing |
| 579 | offset order, which they might not be yet if TYPE has a primary base |
| 580 | which is not first in the base-clause or a vptr and at least one base |
| 581 | all of which are non-primary. */ |
| 582 | |
| 583 | static vec<constructor_elt, va_gc> * |
| 584 | sort_constexpr_mem_initializers (tree type, vec<constructor_elt, va_gc> *v) |
| 585 | { |
| 586 | tree pri = CLASSTYPE_PRIMARY_BINFO (type)((((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 586, __FUNCTION__))->type_with_lang_specific.lang_specific ))->primary_base); |
| 587 | tree field_type; |
| 588 | unsigned i; |
| 589 | constructor_elt *ce; |
| 590 | |
| 591 | if (pri) |
| 592 | field_type = BINFO_TYPE (pri)((contains_struct_check (((tree_check ((pri), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 592, __FUNCTION__, (TREE_BINFO)))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 592, __FUNCTION__))->typed.type); |
| 593 | else if (TYPE_CONTAINS_VPTR_P (type)((((tree_not_check2 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 593, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) || ((((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 593, __FUNCTION__))->type_with_lang_specific.lang_specific ))->vbases))) |
| 594 | field_type = vtbl_ptr_type_nodecp_global_trees[CPTI_VTBL_PTR_TYPE]; |
| 595 | else |
| 596 | return v; |
| 597 | |
| 598 | /* Find the element for the primary base or vptr and move it to the |
| 599 | beginning of the vec. */ |
| 600 | for (i = 0; vec_safe_iterate (v, i, &ce); ++i) |
| 601 | if (TREE_TYPE (ce->index)((contains_struct_check ((ce->index), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 601, __FUNCTION__))->typed.type) == field_type) |
| 602 | break; |
| 603 | |
| 604 | if (i > 0 && i < vec_safe_length (v)) |
| 605 | { |
| 606 | vec<constructor_elt, va_gc> &vref = *v; |
| 607 | constructor_elt elt = vref[i]; |
| 608 | for (; i > 0; --i) |
| 609 | vref[i] = vref[i-1]; |
| 610 | vref[0] = elt; |
| 611 | } |
| 612 | |
| 613 | return v; |
| 614 | } |
| 615 | |
| 616 | /* Build compile-time evalable representations of member-initializer list |
| 617 | for a constexpr constructor. */ |
| 618 | |
| 619 | static tree |
| 620 | build_constexpr_constructor_member_initializers (tree type, tree body) |
| 621 | { |
| 622 | vec<constructor_elt, va_gc> *vec = NULL__null; |
| 623 | bool ok = true; |
| 624 | while (true) |
| 625 | switch (TREE_CODE (body)((enum tree_code) (body)->base.code)) |
| 626 | { |
| 627 | case MUST_NOT_THROW_EXPR: |
| 628 | case EH_SPEC_BLOCK: |
| 629 | body = TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 629, __FUNCTION__))))); |
| 630 | break; |
| 631 | |
| 632 | case STATEMENT_LIST: |
| 633 | for (tree stmt : tsi_range (body)) |
| 634 | { |
| 635 | body = stmt; |
| 636 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == BIND_EXPR) |
| 637 | break; |
| 638 | } |
| 639 | break; |
| 640 | |
| 641 | case BIND_EXPR: |
| 642 | body = BIND_EXPR_BODY (body)((*((const_cast<tree*> (tree_operand_check (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 642, __FUNCTION__, (BIND_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 642, __FUNCTION__)))))); |
| 643 | goto found; |
| 644 | |
| 645 | default: |
| 646 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 646, __FUNCTION__)); |
| 647 | } |
| 648 | found: |
| 649 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == TRY_BLOCK) |
| 650 | { |
| 651 | body = TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 651, __FUNCTION__))))); |
| 652 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == BIND_EXPR) |
| 653 | body = BIND_EXPR_BODY (body)((*((const_cast<tree*> (tree_operand_check (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 653, __FUNCTION__, (BIND_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 653, __FUNCTION__)))))); |
| 654 | } |
| 655 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == CLEANUP_POINT_EXPR) |
| 656 | { |
| 657 | body = TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 657, __FUNCTION__))))); |
| 658 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == EXPR_STMT) |
| 659 | body = TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 659, __FUNCTION__))))); |
| 660 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == INIT_EXPR |
| 661 | && (same_type_ignoring_top_level_qualifiers_p |
| 662 | (TREE_TYPE (TREE_OPERAND (body, 0))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 662, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 662, __FUNCTION__))->typed.type), |
| 663 | current_class_typescope_chain->class_type))) |
| 664 | { |
| 665 | /* Trivial copy. */ |
| 666 | return TREE_OPERAND (body, 1)(*((const_cast<tree*> (tree_operand_check ((body), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 666, __FUNCTION__))))); |
| 667 | } |
| 668 | ok = build_data_member_initialization (body, &vec); |
| 669 | } |
| 670 | else if (TREE_CODE (body)((enum tree_code) (body)->base.code) == STATEMENT_LIST) |
| 671 | { |
| 672 | for (tree stmt : tsi_range (body)) |
| 673 | { |
| 674 | ok = build_data_member_initialization (stmt, &vec); |
| 675 | if (!ok) |
| 676 | break; |
| 677 | } |
| 678 | } |
| 679 | else if (EXPR_P (body)((tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (body)->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (body)->base.code))]) <= tcc_expression)) |
| 680 | ok = build_data_member_initialization (body, &vec); |
| 681 | else |
| 682 | gcc_assert (errorcount > 0)((void)(!((global_dc)->diagnostic_count[(int) (DK_ERROR)] > 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 682, __FUNCTION__), 0 : 0)); |
| 683 | if (ok) |
| 684 | { |
| 685 | if (vec_safe_length (vec) > 0) |
| 686 | { |
| 687 | /* In a delegating constructor, return the target. */ |
| 688 | constructor_elt *ce = &(*vec)[0]; |
| 689 | if (ce->index == current_class_ptr(*((cfun + 0) && ((cfun + 0)->language) ? &((cfun + 0)->language)->x_current_class_ptr : &scope_chain ->x_current_class_ptr))) |
| 690 | { |
| 691 | body = ce->value; |
| 692 | vec_free (vec); |
| 693 | return body; |
| 694 | } |
| 695 | } |
| 696 | vec = sort_constexpr_mem_initializers (type, vec); |
| 697 | return build_constructor (type, vec); |
| 698 | } |
| 699 | else |
| 700 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 701 | } |
| 702 | |
| 703 | /* We have an expression tree T that represents a call, either CALL_EXPR |
| 704 | or AGGR_INIT_EXPR. If the call is lexically to a named function, |
| 705 | retrun the _DECL for that function. */ |
| 706 | |
| 707 | static tree |
| 708 | get_function_named_in_call (tree t) |
| 709 | { |
| 710 | tree fun = cp_get_callee (t); |
| 711 | if (fun && TREE_CODE (fun)((enum tree_code) (fun)->base.code) == ADDR_EXPR |
| 712 | && TREE_CODE (TREE_OPERAND (fun, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((fun), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 712, __FUNCTION__))))))->base.code) == FUNCTION_DECL) |
| 713 | fun = TREE_OPERAND (fun, 0)(*((const_cast<tree*> (tree_operand_check ((fun), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 713, __FUNCTION__))))); |
| 714 | return fun; |
| 715 | } |
| 716 | |
| 717 | /* Subroutine of check_constexpr_fundef. BODY is the body of a function |
| 718 | declared to be constexpr, or a sub-statement thereof. Returns the |
| 719 | return value if suitable, error_mark_node for a statement not allowed in |
| 720 | a constexpr function, or NULL_TREE if no return value was found. */ |
| 721 | |
| 722 | tree |
| 723 | constexpr_fn_retval (tree body) |
| 724 | { |
| 725 | switch (TREE_CODE (body)((enum tree_code) (body)->base.code)) |
| 726 | { |
| 727 | case STATEMENT_LIST: |
| 728 | { |
| 729 | tree expr = NULL_TREE(tree) __null; |
| 730 | for (tree stmt : tsi_range (body)) |
| 731 | { |
| 732 | tree s = constexpr_fn_retval (stmt); |
| 733 | if (s == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 734 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 735 | else if (s == NULL_TREE(tree) __null) |
| 736 | /* Keep iterating. */; |
| 737 | else if (expr) |
| 738 | /* Multiple return statements. */ |
| 739 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 740 | else |
| 741 | expr = s; |
| 742 | } |
| 743 | return expr; |
| 744 | } |
| 745 | |
| 746 | case RETURN_EXPR: |
| 747 | return break_out_target_exprs (TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 747, __FUNCTION__)))))); |
| 748 | |
| 749 | case DECL_EXPR: |
| 750 | { |
| 751 | tree decl = DECL_EXPR_DECL (body)(*((const_cast<tree*> (tree_operand_check (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 751, __FUNCTION__, (DECL_EXPR)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 751, __FUNCTION__))))); |
| 752 | if (TREE_CODE (decl)((enum tree_code) (decl)->base.code) == USING_DECL |
| 753 | /* Accept __func__, __FUNCTION__, and __PRETTY_FUNCTION__. */ |
| 754 | || DECL_ARTIFICIAL (decl)((contains_struct_check ((decl), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 754, __FUNCTION__))->decl_common.artificial_flag)) |
| 755 | return NULL_TREE(tree) __null; |
| 756 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 757 | } |
| 758 | |
| 759 | case CLEANUP_POINT_EXPR: |
| 760 | return constexpr_fn_retval (TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 760, __FUNCTION__)))))); |
| 761 | |
| 762 | case BIND_EXPR: |
| 763 | if (!check_constexpr_bind_expr_vars (body)) |
| 764 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 765 | return constexpr_fn_retval (BIND_EXPR_BODY (body)((*((const_cast<tree*> (tree_operand_check (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 765, __FUNCTION__, (BIND_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 765, __FUNCTION__))))))); |
| 766 | |
| 767 | case USING_STMT: |
| 768 | case DEBUG_BEGIN_STMT: |
| 769 | return NULL_TREE(tree) __null; |
| 770 | |
| 771 | case CALL_EXPR: |
| 772 | { |
| 773 | tree fun = get_function_named_in_call (body); |
| 774 | if (fun != NULL_TREE(tree) __null |
| 775 | && fndecl_built_in_p (fun, BUILT_IN_UNREACHABLE)) |
| 776 | return NULL_TREE(tree) __null; |
| 777 | } |
| 778 | /* Fallthru. */ |
| 779 | |
| 780 | default: |
| 781 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | /* Subroutine of check_constexpr_fundef. BODY is the DECL_SAVED_TREE of |
| 786 | FUN; do the necessary transformations to turn it into a single expression |
| 787 | that we can store in the hash table. */ |
| 788 | |
| 789 | static tree |
| 790 | massage_constexpr_body (tree fun, tree body) |
| 791 | { |
| 792 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 792, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 792, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 793 | body = build_constexpr_constructor_member_initializers |
| 794 | (DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 794, __FUNCTION__))->decl_minimal.context), body); |
| 795 | else if (cxx_dialect < cxx14) |
| 796 | { |
| 797 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == EH_SPEC_BLOCK) |
| 798 | body = EH_SPEC_STMTS (body)(*((const_cast<tree*> (tree_operand_check (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 798, __FUNCTION__, (EH_SPEC_BLOCK)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 798, __FUNCTION__))))); |
| 799 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) == MUST_NOT_THROW_EXPR) |
| 800 | body = TREE_OPERAND (body, 0)(*((const_cast<tree*> (tree_operand_check ((body), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 800, __FUNCTION__))))); |
| 801 | body = constexpr_fn_retval (body); |
| 802 | } |
| 803 | return body; |
| 804 | } |
| 805 | |
| 806 | /* CTYPE is a type constructed from BODY. Return true if some |
| 807 | bases/fields are uninitialized, and complain if COMPLAIN. */ |
| 808 | |
| 809 | static bool |
| 810 | cx_check_missing_mem_inits (tree ctype, tree body, bool complain) |
| 811 | { |
| 812 | /* We allow uninitialized bases/fields in C++20. */ |
| 813 | if (cxx_dialect >= cxx20) |
| 814 | return false; |
| 815 | |
| 816 | unsigned nelts = 0; |
| 817 | |
| 818 | if (body) |
| 819 | { |
| 820 | if (TREE_CODE (body)((enum tree_code) (body)->base.code) != CONSTRUCTOR) |
| 821 | return false; |
| 822 | nelts = CONSTRUCTOR_NELTS (body)(vec_safe_length (((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 822, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))); |
| 823 | } |
| 824 | tree field = TYPE_FIELDS (ctype)((tree_check3 ((ctype), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 824, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); |
| 825 | |
| 826 | if (TREE_CODE (ctype)((enum tree_code) (ctype)->base.code) == UNION_TYPE) |
| 827 | { |
| 828 | if (nelts == 0 && next_aggregate_field (field)) |
| 829 | { |
| 830 | if (complain) |
| 831 | error ("%<constexpr%> constructor for union %qT must " |
| 832 | "initialize exactly one non-static data member", ctype); |
| 833 | return true; |
| 834 | } |
| 835 | return false; |
| 836 | } |
| 837 | |
| 838 | /* Iterate over the CONSTRUCTOR, checking any missing fields don't |
| 839 | need an explicit initialization. */ |
| 840 | bool bad = false; |
| 841 | for (unsigned i = 0; i <= nelts; ++i) |
| 842 | { |
| 843 | tree index = NULL_TREE(tree) __null; |
| 844 | if (i < nelts) |
| 845 | { |
| 846 | index = CONSTRUCTOR_ELT (body, i)(&(*((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 846, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[i ])->index; |
| 847 | /* Skip base and vtable inits. */ |
| 848 | if (TREE_CODE (index)((enum tree_code) (index)->base.code) != FIELD_DECL |
| 849 | || DECL_ARTIFICIAL (index)((contains_struct_check ((index), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 849, __FUNCTION__))->decl_common.artificial_flag)) |
| 850 | continue; |
| 851 | } |
| 852 | |
| 853 | for (; field != index; field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 853, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 853, __FUNCTION__))->common.chain))) |
| 854 | { |
| 855 | tree ftype; |
| 856 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) != FIELD_DECL) |
| 857 | continue; |
| 858 | if (DECL_UNNAMED_BIT_FIELD (field)((((contains_struct_check (((tree_check ((field), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 858, __FUNCTION__, (FIELD_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 858, __FUNCTION__))->decl_common.lang_flag_4) == 1) && !((contains_struct_check ((field), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 858, __FUNCTION__))->decl_minimal.name))) |
| 859 | continue; |
| 860 | if (DECL_ARTIFICIAL (field)((contains_struct_check ((field), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 860, __FUNCTION__))->decl_common.artificial_flag)) |
| 861 | continue; |
| 862 | if (ANON_AGGR_TYPE_P (TREE_TYPE (field))((((((enum tree_code) (((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((field ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 862, __FUNCTION__))->type_with_lang_specific.lang_specific ))->anon_aggr)) |
| 863 | { |
| 864 | /* Recurse to check the anonymous aggregate member. */ |
| 865 | bad |= cx_check_missing_mem_inits |
| 866 | (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 866, __FUNCTION__))->typed.type), NULL_TREE(tree) __null, complain); |
| 867 | if (bad && !complain) |
| 868 | return true; |
| 869 | continue; |
| 870 | } |
| 871 | ftype = TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 871, __FUNCTION__))->typed.type); |
| 872 | if (!ftype || !TYPE_P (ftype)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (ftype)->base.code))] == tcc_type) || !COMPLETE_TYPE_P (ftype)(((tree_class_check ((ftype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 872, __FUNCTION__))->type_common.size) != (tree) __null)) |
| 873 | /* A flexible array can't be intialized here, so don't complain |
| 874 | that it isn't. */ |
| 875 | continue; |
| 876 | if (is_empty_field (field)) |
| 877 | /* An empty field doesn't need an initializer. */ |
| 878 | continue; |
| 879 | ftype = strip_array_types (ftype); |
| 880 | if (type_has_constexpr_default_constructor (ftype)) |
| 881 | { |
| 882 | /* It's OK to skip a member with a trivial constexpr ctor. |
| 883 | A constexpr ctor that isn't trivial should have been |
| 884 | added in by now. */ |
| 885 | gcc_checking_assert (!TYPE_HAS_COMPLEX_DFLT (ftype)((void)(!(!((((tree_class_check ((ftype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 885, __FUNCTION__))->type_with_lang_specific.lang_specific ))->has_complex_dflt) || (global_dc)->diagnostic_count[ (int) (DK_ERROR)] != 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 886, __FUNCTION__), 0 : 0)) |
| 886 | || errorcount != 0)((void)(!(!((((tree_class_check ((ftype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 885, __FUNCTION__))->type_with_lang_specific.lang_specific ))->has_complex_dflt) || (global_dc)->diagnostic_count[ (int) (DK_ERROR)] != 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 886, __FUNCTION__), 0 : 0)); |
| 887 | continue; |
| 888 | } |
| 889 | if (!complain) |
| 890 | return true; |
| 891 | auto_diagnostic_group d; |
| 892 | error ("member %qD must be initialized by mem-initializer " |
| 893 | "in %<constexpr%> constructor", field); |
| 894 | inform (DECL_SOURCE_LOCATION (field)((contains_struct_check ((field), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 894, __FUNCTION__))->decl_minimal.locus), "declared here"); |
| 895 | bad = true; |
| 896 | } |
| 897 | if (field == NULL_TREE(tree) __null) |
| 898 | break; |
| 899 | |
| 900 | if (ANON_AGGR_TYPE_P (TREE_TYPE (index))((((((enum tree_code) (((contains_struct_check ((index), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((index), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((index ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((((contains_struct_check ((index), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 900, __FUNCTION__))->type_with_lang_specific.lang_specific ))->anon_aggr)) |
| 901 | { |
| 902 | /* Check the anonymous aggregate initializer is valid. */ |
| 903 | bad |= cx_check_missing_mem_inits |
| 904 | (TREE_TYPE (index)((contains_struct_check ((index), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 904, __FUNCTION__))->typed.type), CONSTRUCTOR_ELT (body, i)(&(*((tree_check ((body), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 904, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[i ])->value, complain); |
| 905 | if (bad && !complain) |
| 906 | return true; |
| 907 | } |
| 908 | field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 908, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 908, __FUNCTION__))->common.chain)); |
| 909 | } |
| 910 | |
| 911 | return bad; |
| 912 | } |
| 913 | |
| 914 | /* We are processing the definition of the constexpr function FUN. |
| 915 | Check that its body fulfills the apropriate requirements and |
| 916 | enter it in the constexpr function definition table. */ |
| 917 | |
| 918 | void |
| 919 | maybe_save_constexpr_fundef (tree fun) |
| 920 | { |
| 921 | if (processing_template_declscope_chain->x_processing_template_decl |
| 922 | || cp_function_chain((cfun + 0)->language)->invalid_constexpr |
| 923 | || (DECL_CLONED_FUNCTION_P (fun)(((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name) && ((!(( tree_not_check2 (((tree_check ((((contains_struct_check ((fun ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) & ((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_1)) && !((((contains_struct_check ((fun), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_CTOR_IDENTIFIER]) || (((contains_struct_check ((fun), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_DTOR_IDENTIFIER]))) && !DECL_DELETING_DESTRUCTOR_P (fun)(((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 923, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_DELETING_DTOR_IDENTIFIER]))) |
| 924 | return; |
| 925 | |
| 926 | /* With -fimplicit-constexpr, try to make inlines constexpr. We'll |
| 927 | actually set DECL_DECLARED_CONSTEXPR_P below if the checks pass. */ |
| 928 | bool implicit = false; |
| 929 | if (flag_implicit_constexprglobal_options.x_flag_implicit_constexpr) |
| 930 | { |
| 931 | if (DECL_DELETING_DESTRUCTOR_P (fun)(((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 931, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_DELETING_DTOR_IDENTIFIER]) |
| 932 | && decl_implicit_constexpr_p (DECL_CLONED_FUNCTION (fun)(((contains_struct_check (((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 932, __FUNCTION__, (FUNCTION_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 932, __FUNCTION__))->decl_common.lang_specific)->u.fn .u5.cloned_function))) |
| 933 | /* Don't inherit implicit constexpr from the non-deleting |
| 934 | destructor. */ |
| 935 | DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 935, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 935, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 935, __FUNCTION__))->decl_common.lang_flag_8) = false; |
| 936 | |
| 937 | if (!DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 937, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 937, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 937, __FUNCTION__))->decl_common.lang_flag_8) |
| 938 | && DECL_DECLARED_INLINE_P (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 938, __FUNCTION__, (FUNCTION_DECL)))->function_decl.declared_inline_flag ) |
| 939 | && !lookup_attribute ("noinline", DECL_ATTRIBUTES (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 939, __FUNCTION__))->decl_common.attributes))) |
| 940 | implicit = true; |
| 941 | } |
| 942 | |
| 943 | if (!DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 943, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 943, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 943, __FUNCTION__))->decl_common.lang_flag_8) && !implicit) |
| 944 | return; |
| 945 | |
| 946 | bool complain = !DECL_GENERATED_P (fun)((((((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template) & 1) || (((contains_struct_check ((fun), ( TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__))->decl_common.lang_specific) && (((contains_struct_check ((template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__))->decl_common.lang_specific) ->u.min .template_info) && !(((contains_struct_check ((fun), ( TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template))) || (__extension__ ({ struct lang_decl *lt = ( (contains_struct_check (((((enum tree_code) (fun)->base.code ) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast <union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__))->decl_common.lang_specific); if (!(( (enum tree_code) (fun)->base.code) == FUNCTION_DECL || ((( enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 946, __FUNCTION__); <->u.fn; })->defaulted_p)) && !implicit; |
| 947 | |
| 948 | if (!is_valid_constexpr_fn (fun, complain)) |
| 949 | return; |
| 950 | |
| 951 | tree massaged = massage_constexpr_body (fun, DECL_SAVED_TREE (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 951, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree )); |
| 952 | if (massaged == NULL_TREE(tree) __null || massaged == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 953 | { |
| 954 | if (!DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 954, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 954, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) && complain) |
| 955 | error ("body of %<constexpr%> function %qD not a return-statement", |
| 956 | fun); |
| 957 | return; |
| 958 | } |
| 959 | |
| 960 | bool potential = potential_rvalue_constant_expression (massaged); |
| 961 | if (!potential && complain) |
| 962 | require_potential_rvalue_constant_expression_fncheck (massaged); |
| 963 | |
| 964 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 964, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 964, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) && potential |
| 965 | && !DECL_DEFAULTED_FN (fun)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 965, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 965, __FUNCTION__))->decl_common.lang_specific); if (!(( (enum tree_code) (fun)->base.code) == FUNCTION_DECL || ((( enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 965, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 965, __FUNCTION__, (TEMPLATE_DECL))))))))->result)->base .code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 965, __FUNCTION__); <->u.fn; })->defaulted_p)) |
| 966 | { |
| 967 | if (cx_check_missing_mem_inits (DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 967, __FUNCTION__))->decl_minimal.context), |
| 968 | massaged, complain)) |
| 969 | potential = false; |
| 970 | else if (cxx_dialect > cxx11) |
| 971 | { |
| 972 | /* What we got from massage_constexpr_body is pretty much just the |
| 973 | ctor-initializer, also check the body. */ |
| 974 | massaged = DECL_SAVED_TREE (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 974, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree ); |
| 975 | potential = potential_rvalue_constant_expression (massaged); |
| 976 | if (!potential && complain) |
| 977 | require_potential_rvalue_constant_expression_fncheck (massaged); |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | if (!potential && complain |
| 982 | /* If -Wno-invalid-constexpr was specified, we haven't complained |
| 983 | about non-constant expressions yet. Register the function and |
| 984 | complain in explain_invalid_constexpr_fn if the function is |
| 985 | called. */ |
| 986 | && warn_invalid_constexprglobal_options.x_warn_invalid_constexpr != 0) |
| 987 | return; |
| 988 | |
| 989 | if (implicit) |
| 990 | { |
| 991 | if (potential) |
| 992 | { |
| 993 | DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 993, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 993, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 993, __FUNCTION__))->decl_common.lang_flag_8) = true; |
| 994 | DECL_LANG_SPECIFIC (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 994, __FUNCTION__))->decl_common.lang_specific)->u.fn.implicit_constexpr = true; |
| 995 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 995, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun) ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 995, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 996 | TYPE_HAS_CONSTEXPR_CTOR (DECL_CONTEXT (fun))((((tree_class_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 996, __FUNCTION__))->decl_minimal.context)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 996, __FUNCTION__))->type_with_lang_specific.lang_specific ))->has_constexpr_ctor) = true; |
| 997 | } |
| 998 | else |
| 999 | /* Don't bother keeping the pre-generic body of unsuitable functions |
| 1000 | not explicitly declared constexpr. */ |
| 1001 | return; |
| 1002 | } |
| 1003 | |
| 1004 | constexpr_fundef entry = {fun, NULL_TREE(tree) __null, NULL_TREE(tree) __null, NULL_TREE(tree) __null}; |
| 1005 | bool clear_ctx = false; |
| 1006 | if (DECL_RESULT (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1006, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result ) && DECL_CONTEXT (DECL_RESULT (fun))((contains_struct_check ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1006, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result )), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1006, __FUNCTION__))->decl_minimal.context) == NULL_TREE(tree) __null) |
| 1007 | { |
| 1008 | clear_ctx = true; |
| 1009 | DECL_CONTEXT (DECL_RESULT (fun))((contains_struct_check ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1009, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result )), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1009, __FUNCTION__))->decl_minimal.context) = fun; |
| 1010 | } |
| 1011 | tree saved_fn = current_function_decl; |
| 1012 | current_function_decl = fun; |
| 1013 | entry.body = copy_fn (entry.decl, entry.parms, entry.result); |
| 1014 | current_function_decl = saved_fn; |
| 1015 | if (clear_ctx) |
| 1016 | DECL_CONTEXT (DECL_RESULT (entry.decl))((contains_struct_check ((((tree_check ((entry.decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1016, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result )), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1016, __FUNCTION__))->decl_minimal.context) = NULL_TREE(tree) __null; |
| 1017 | if (!potential) |
| 1018 | /* For a template instantiation, we want to remember the pre-generic body |
| 1019 | for explain_invalid_constexpr_fn, but do tell cxx_eval_call_expression |
| 1020 | that it doesn't need to bother trying to expand the function. */ |
| 1021 | entry.result = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 1022 | |
| 1023 | register_constexpr_fundef (entry); |
| 1024 | } |
| 1025 | |
| 1026 | /* BODY is a validated and massaged definition of a constexpr |
| 1027 | function. Register it in the hash table. */ |
| 1028 | |
| 1029 | void |
| 1030 | register_constexpr_fundef (const constexpr_fundef &value) |
| 1031 | { |
| 1032 | /* Create the constexpr function table if necessary. */ |
| 1033 | if (constexpr_fundef_table == NULL__null) |
| 1034 | constexpr_fundef_table |
| 1035 | = hash_table<constexpr_fundef_hasher>::create_ggc (101); |
| 1036 | |
| 1037 | constexpr_fundef **slot = constexpr_fundef_table->find_slot |
| 1038 | (const_cast<constexpr_fundef *> (&value), INSERT); |
| 1039 | |
| 1040 | gcc_assert (*slot == NULL)((void)(!(*slot == __null) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1040, __FUNCTION__), 0 : 0)); |
| 1041 | *slot = ggc_alloc<constexpr_fundef> (); |
| 1042 | **slot = value; |
| 1043 | } |
| 1044 | |
| 1045 | /* FUN is a non-constexpr (or, with -Wno-invalid-constexpr, a constexpr |
| 1046 | function called in a context that requires a constant expression). |
| 1047 | If it comes from a constexpr template, explain why the instantiation |
| 1048 | isn't constexpr. Otherwise, explain why the function cannot be used |
| 1049 | in a constexpr context. */ |
| 1050 | |
| 1051 | void |
| 1052 | explain_invalid_constexpr_fn (tree fun) |
| 1053 | { |
| 1054 | static hash_set<tree> *diagnosed; |
| 1055 | tree body; |
| 1056 | /* In C++23, a function marked 'constexpr' may not actually be a constant |
| 1057 | expression. We haven't diagnosed the problem yet: -Winvalid-constexpr |
| 1058 | wasn't enabled. The function was called, so diagnose why it cannot be |
| 1059 | used in a constant expression. */ |
| 1060 | if (warn_invalid_constexprglobal_options.x_warn_invalid_constexpr == 0 && DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1060, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1060, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1060, __FUNCTION__))->decl_common.lang_flag_8)) |
| 1061 | /* Go on. */; |
| 1062 | /* Only diagnose defaulted functions, lambdas, or instantiations. */ |
| 1063 | else if (!DECL_DEFAULTED_FN (fun)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1063, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1063, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (fun)->base.code) == FUNCTION_DECL || (( (enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1063, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1063, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1063, __FUNCTION__); <->u.fn; })->defaulted_p) |
| 1064 | && !LAMBDA_TYPE_P (CP_DECL_CONTEXT (fun))(((enum tree_code) ((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL]))->base.code) == RECORD_TYPE && (((( tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name))->base.code)) ] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name))) && ((tree_check ((((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name) && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name))->base.code)) ] == tcc_declaration) ? ((contains_struct_check ((((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name)), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.name) : ((tree_class_check ((((tree_class_check (((!(! (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL])), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__))->type_common.name)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1064, __FUNCTION__, (IDENTIFIER_NODE)))->base.protected_flag )) |
| 1065 | && !is_instantiation_of_constexpr (fun)) |
| 1066 | { |
| 1067 | inform (DECL_SOURCE_LOCATION (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1067, __FUNCTION__))->decl_minimal.locus), "%qD declared here", fun); |
| 1068 | return; |
| 1069 | } |
| 1070 | if (diagnosed == NULL__null) |
| 1071 | diagnosed = new hash_set<tree>; |
| 1072 | if (diagnosed->add (fun)) |
| 1073 | /* Already explained. */ |
| 1074 | return; |
| 1075 | |
| 1076 | iloc_sentinel ils = input_location; |
| 1077 | if (!lambda_static_thunk_p (fun)) |
| 1078 | { |
| 1079 | /* Diagnostics should completely ignore the static thunk, so leave |
| 1080 | input_location set to our caller's location. */ |
| 1081 | input_location = DECL_SOURCE_LOCATION (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1081, __FUNCTION__))->decl_minimal.locus); |
| 1082 | inform (input_location, |
| 1083 | "%qD is not usable as a %<constexpr%> function because:", fun); |
| 1084 | } |
| 1085 | /* First check the declaration. */ |
| 1086 | if (is_valid_constexpr_fn (fun, true)) |
| 1087 | { |
| 1088 | /* Then if it's OK, the body. */ |
| 1089 | if (!DECL_DECLARED_CONSTEXPR_P (fun)((contains_struct_check (((tree_check2 (((((enum tree_code) ( fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1089, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1089, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1089, __FUNCTION__))->decl_common.lang_flag_8) |
| 1090 | && DECL_DEFAULTED_FN (fun)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1090, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1090, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (fun)->base.code) == FUNCTION_DECL || (( (enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1090, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1090, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1090, __FUNCTION__); <->u.fn; })->defaulted_p)) |
| 1091 | explain_implicit_non_constexpr (fun); |
| 1092 | else |
| 1093 | { |
| 1094 | if (constexpr_fundef *fd = retrieve_constexpr_fundef (fun)) |
| 1095 | body = fd->body; |
| 1096 | else |
| 1097 | body = DECL_SAVED_TREE (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1097, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree ); |
| 1098 | body = massage_constexpr_body (fun, body); |
| 1099 | require_potential_rvalue_constant_expression (body); |
| 1100 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1100, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1100, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 1101 | cx_check_missing_mem_inits (DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1101, __FUNCTION__))->decl_minimal.context), body, true); |
| 1102 | } |
| 1103 | } |
| 1104 | } |
| 1105 | |
| 1106 | /* Objects of this type represent calls to constexpr functions |
| 1107 | along with the bindings of parameters to their arguments, for |
| 1108 | the purpose of compile time evaluation. */ |
| 1109 | |
| 1110 | struct GTY((for_user)) constexpr_call { |
| 1111 | /* Description of the constexpr function definition. */ |
| 1112 | constexpr_fundef *fundef; |
| 1113 | /* Parameter bindings environment. A TREE_VEC of arguments. */ |
| 1114 | tree bindings; |
| 1115 | /* Result of the call. |
| 1116 | NULL means the call is being evaluated. |
| 1117 | error_mark_node means that the evaluation was erroneous; |
| 1118 | otherwise, the actuall value of the call. */ |
| 1119 | tree result; |
| 1120 | /* The hash of this call; we remember it here to avoid having to |
| 1121 | recalculate it when expanding the hash table. */ |
| 1122 | hashval_t hash; |
| 1123 | /* The value of constexpr_ctx::manifestly_const_eval. */ |
| 1124 | enum mce_value manifestly_const_eval; |
| 1125 | }; |
| 1126 | |
| 1127 | struct constexpr_call_hasher : ggc_ptr_hash<constexpr_call> |
| 1128 | { |
| 1129 | static hashval_t hash (constexpr_call *); |
| 1130 | static bool equal (constexpr_call *, constexpr_call *); |
| 1131 | }; |
| 1132 | |
| 1133 | enum constexpr_switch_state { |
| 1134 | /* Used when processing a switch for the first time by cxx_eval_switch_expr |
| 1135 | and default: label for that switch has not been seen yet. */ |
| 1136 | css_default_not_seen, |
| 1137 | /* Used when processing a switch for the first time by cxx_eval_switch_expr |
| 1138 | and default: label for that switch has been seen already. */ |
| 1139 | css_default_seen, |
| 1140 | /* Used when processing a switch for the second time by |
| 1141 | cxx_eval_switch_expr, where default: label should match. */ |
| 1142 | css_default_processing |
| 1143 | }; |
| 1144 | |
| 1145 | /* The constexpr expansion context part which needs one instance per |
| 1146 | cxx_eval_outermost_constant_expr invocation. VALUES is a map of values of |
| 1147 | variables initialized within the expression. */ |
| 1148 | |
| 1149 | class constexpr_global_ctx { |
| 1150 | /* Values for any temporaries or local variables within the |
| 1151 | constant-expression. */ |
| 1152 | hash_map<tree,tree> values; |
| 1153 | public: |
| 1154 | /* Number of cxx_eval_constant_expression calls (except skipped ones, |
| 1155 | on simple constants or location wrappers) encountered during current |
| 1156 | cxx_eval_outermost_constant_expr call. */ |
| 1157 | HOST_WIDE_INTlong constexpr_ops_count; |
| 1158 | /* Heap VAR_DECLs created during the evaluation of the outermost constant |
| 1159 | expression. */ |
| 1160 | auto_vec<tree, 16> heap_vars; |
| 1161 | /* Cleanups that need to be evaluated at the end of CLEANUP_POINT_EXPR. */ |
| 1162 | vec<tree> *cleanups; |
| 1163 | /* If non-null, only allow modification of existing values of the variables |
| 1164 | in this set. Set by modifiable_tracker, below. */ |
| 1165 | hash_set<tree> *modifiable; |
| 1166 | /* Number of heap VAR_DECL deallocations. */ |
| 1167 | unsigned heap_dealloc_count; |
| 1168 | /* Constructor. */ |
| 1169 | constexpr_global_ctx () |
| 1170 | : constexpr_ops_count (0), cleanups (NULL__null), modifiable (nullptr), |
| 1171 | heap_dealloc_count (0) {} |
| 1172 | |
| 1173 | tree get_value (tree t) |
| 1174 | { |
| 1175 | if (tree *p = values.get (t)) |
| 1176 | return *p; |
| 1177 | return NULL_TREE(tree) __null; |
| 1178 | } |
| 1179 | tree *get_value_ptr (tree t) |
| 1180 | { |
| 1181 | if (modifiable && !modifiable->contains (t)) |
| 1182 | return nullptr; |
| 1183 | return values.get (t); |
| 1184 | } |
| 1185 | void put_value (tree t, tree v) |
| 1186 | { |
| 1187 | bool already_in_map = values.put (t, v); |
| 1188 | if (!already_in_map && modifiable) |
| 1189 | modifiable->add (t); |
| 1190 | } |
| 1191 | void remove_value (tree t) { values.remove (t); } |
| 1192 | }; |
| 1193 | |
| 1194 | /* Helper class for constexpr_global_ctx. In some cases we want to avoid |
| 1195 | side-effects from evaluation of a particular subexpression of a |
| 1196 | constant-expression. In such cases we use modifiable_tracker to prevent |
| 1197 | modification of variables created outside of that subexpression. |
| 1198 | |
| 1199 | ??? We could change the hash_set to a hash_map, allow and track external |
| 1200 | modifications, and roll them back in the destructor. It's not clear to me |
| 1201 | that this would be worthwhile. */ |
| 1202 | |
| 1203 | class modifiable_tracker |
| 1204 | { |
| 1205 | hash_set<tree> set; |
| 1206 | constexpr_global_ctx *global; |
| 1207 | public: |
| 1208 | modifiable_tracker (constexpr_global_ctx *g): global(g) |
| 1209 | { |
| 1210 | global->modifiable = &set; |
| 1211 | } |
| 1212 | ~modifiable_tracker () |
| 1213 | { |
| 1214 | for (tree t: set) |
| 1215 | global->remove_value (t); |
| 1216 | global->modifiable = nullptr; |
| 1217 | } |
| 1218 | }; |
| 1219 | |
| 1220 | /* The constexpr expansion context. CALL is the current function |
| 1221 | expansion, CTOR is the current aggregate initializer, OBJECT is the |
| 1222 | object being initialized by CTOR, either a VAR_DECL or a _REF. */ |
| 1223 | |
| 1224 | struct constexpr_ctx { |
| 1225 | /* The part of the context that needs to be unique to the whole |
| 1226 | cxx_eval_outermost_constant_expr invocation. */ |
| 1227 | constexpr_global_ctx *global; |
| 1228 | /* The innermost call we're evaluating. */ |
| 1229 | constexpr_call *call; |
| 1230 | /* SAVE_EXPRs and TARGET_EXPR_SLOT vars of TARGET_EXPRs that we've seen |
| 1231 | within the current LOOP_EXPR. NULL if we aren't inside a loop. */ |
| 1232 | vec<tree> *save_exprs; |
| 1233 | /* The CONSTRUCTOR we're currently building up for an aggregate |
| 1234 | initializer. */ |
| 1235 | tree ctor; |
| 1236 | /* The object we're building the CONSTRUCTOR for. */ |
| 1237 | tree object; |
| 1238 | /* If inside SWITCH_EXPR. */ |
| 1239 | constexpr_switch_state *css_state; |
| 1240 | /* The aggregate initialization context inside which this one is nested. This |
| 1241 | is used by lookup_placeholder to resolve PLACEHOLDER_EXPRs. */ |
| 1242 | const constexpr_ctx *parent; |
| 1243 | |
| 1244 | /* Whether we should error on a non-constant expression or fail quietly. |
| 1245 | This flag needs to be here, but some of the others could move to global |
| 1246 | if they get larger than a word. */ |
| 1247 | bool quiet; |
| 1248 | /* Whether we are strictly conforming to constant expression rules or |
| 1249 | trying harder to get a constant value. */ |
| 1250 | bool strict; |
| 1251 | /* Whether __builtin_is_constant_evaluated () should be true. */ |
| 1252 | mce_value manifestly_const_eval; |
| 1253 | }; |
| 1254 | |
| 1255 | /* This internal flag controls whether we should avoid doing anything during |
| 1256 | constexpr evaluation that would cause extra DECL_UID generation, such as |
| 1257 | template instantiation and function body copying. */ |
| 1258 | |
| 1259 | static bool uid_sensitive_constexpr_evaluation_value; |
| 1260 | |
| 1261 | /* An internal counter that keeps track of the number of times |
| 1262 | uid_sensitive_constexpr_evaluation_p returned true. */ |
| 1263 | |
| 1264 | static unsigned uid_sensitive_constexpr_evaluation_true_counter; |
| 1265 | |
| 1266 | /* The accessor for uid_sensitive_constexpr_evaluation_value which also |
| 1267 | increments the corresponding counter. */ |
| 1268 | |
| 1269 | static bool |
| 1270 | uid_sensitive_constexpr_evaluation_p () |
| 1271 | { |
| 1272 | if (uid_sensitive_constexpr_evaluation_value) |
| 1273 | { |
| 1274 | ++uid_sensitive_constexpr_evaluation_true_counter; |
| 1275 | return true; |
| 1276 | } |
| 1277 | else |
| 1278 | return false; |
| 1279 | } |
| 1280 | |
| 1281 | /* The default constructor for uid_sensitive_constexpr_evaluation_sentinel |
| 1282 | enables the internal flag for uid_sensitive_constexpr_evaluation_p |
| 1283 | during the lifetime of the sentinel object. Upon its destruction, the |
| 1284 | previous value of uid_sensitive_constexpr_evaluation_p is restored. */ |
| 1285 | |
| 1286 | uid_sensitive_constexpr_evaluation_sentinel |
| 1287 | ::uid_sensitive_constexpr_evaluation_sentinel () |
| 1288 | : ovr (uid_sensitive_constexpr_evaluation_value, true) |
| 1289 | { |
| 1290 | } |
| 1291 | |
| 1292 | /* The default constructor for uid_sensitive_constexpr_evaluation_checker |
| 1293 | records the current number of times that uid_sensitive_constexpr_evaluation_p |
| 1294 | has been called and returned true. */ |
| 1295 | |
| 1296 | uid_sensitive_constexpr_evaluation_checker |
| 1297 | ::uid_sensitive_constexpr_evaluation_checker () |
| 1298 | : saved_counter (uid_sensitive_constexpr_evaluation_true_counter) |
| 1299 | { |
| 1300 | } |
| 1301 | |
| 1302 | /* Returns true iff uid_sensitive_constexpr_evaluation_p is true, and |
| 1303 | some constexpr evaluation was restricted due to u_s_c_e_p being called |
| 1304 | and returning true during the lifetime of this checker object. */ |
| 1305 | |
| 1306 | bool |
| 1307 | uid_sensitive_constexpr_evaluation_checker::evaluation_restricted_p () const |
| 1308 | { |
| 1309 | return (uid_sensitive_constexpr_evaluation_value |
| 1310 | && saved_counter != uid_sensitive_constexpr_evaluation_true_counter); |
| 1311 | } |
| 1312 | |
| 1313 | |
| 1314 | /* A table of all constexpr calls that have been evaluated by the |
| 1315 | compiler in this translation unit. */ |
| 1316 | |
| 1317 | static GTY (()) hash_table<constexpr_call_hasher> *constexpr_call_table; |
| 1318 | |
| 1319 | /* Compute a hash value for a constexpr call representation. */ |
| 1320 | |
| 1321 | inline hashval_t |
| 1322 | constexpr_call_hasher::hash (constexpr_call *info) |
| 1323 | { |
| 1324 | return info->hash; |
| 1325 | } |
| 1326 | |
| 1327 | /* Return true if the objects pointed to by P and Q represent calls |
| 1328 | to the same constexpr function with the same arguments. |
| 1329 | Otherwise, return false. */ |
| 1330 | |
| 1331 | bool |
| 1332 | constexpr_call_hasher::equal (constexpr_call *lhs, constexpr_call *rhs) |
| 1333 | { |
| 1334 | if (lhs == rhs) |
| 1335 | return true; |
| 1336 | if (lhs->hash != rhs->hash) |
| 1337 | return false; |
| 1338 | if (lhs->manifestly_const_eval != rhs->manifestly_const_eval) |
| 1339 | return false; |
| 1340 | if (!constexpr_fundef_hasher::equal (lhs->fundef, rhs->fundef)) |
| 1341 | return false; |
| 1342 | return cp_tree_equal (lhs->bindings, rhs->bindings); |
| 1343 | } |
| 1344 | |
| 1345 | /* Initialize the constexpr call table, if needed. */ |
| 1346 | |
| 1347 | static void |
| 1348 | maybe_initialize_constexpr_call_table (void) |
| 1349 | { |
| 1350 | if (constexpr_call_table == NULL__null) |
| 1351 | constexpr_call_table = hash_table<constexpr_call_hasher>::create_ggc (101); |
| 1352 | } |
| 1353 | |
| 1354 | /* During constexpr CALL_EXPR evaluation, to avoid issues with sharing when |
| 1355 | a function happens to get called recursively, we unshare the callee |
| 1356 | function's body and evaluate this unshared copy instead of evaluating the |
| 1357 | original body. |
| 1358 | |
| 1359 | FUNDEF_COPIES_TABLE is a per-function freelist of these unshared function |
| 1360 | copies. The underlying data structure of FUNDEF_COPIES_TABLE is a hash_map |
| 1361 | that's keyed off of the original FUNCTION_DECL and whose value is a |
| 1362 | TREE_LIST of this function's unused copies awaiting reuse. |
| 1363 | |
| 1364 | This is not GC-deletable to avoid GC affecting UID generation. */ |
| 1365 | |
| 1366 | static GTY(()) decl_tree_map *fundef_copies_table; |
| 1367 | |
| 1368 | /* Reuse a copy or create a new unshared copy of the function FUN. |
| 1369 | Return this copy. We use a TREE_LIST whose PURPOSE is body, VALUE |
| 1370 | is parms, TYPE is result. */ |
| 1371 | |
| 1372 | static tree |
| 1373 | get_fundef_copy (constexpr_fundef *fundef) |
| 1374 | { |
| 1375 | tree copy; |
| 1376 | bool existed; |
| 1377 | tree *slot = &(hash_map_safe_get_or_insert<hm_ggc> |
| 1378 | (fundef_copies_table, fundef->decl, &existed, 127)); |
| 1379 | |
| 1380 | if (!existed) |
| 1381 | { |
| 1382 | /* There is no cached function available, or in use. We can use |
| 1383 | the function directly. That the slot is now created records |
| 1384 | that this function is now in use. */ |
| 1385 | copy = build_tree_list (fundef->body, fundef->parms); |
| 1386 | TREE_TYPE (copy)((contains_struct_check ((copy), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1386, __FUNCTION__))->typed.type) = fundef->result; |
| 1387 | } |
| 1388 | else if (*slot == NULL_TREE(tree) __null) |
| 1389 | { |
| 1390 | if (uid_sensitive_constexpr_evaluation_p ()) |
| 1391 | return NULL_TREE(tree) __null; |
| 1392 | |
| 1393 | /* We've already used the function itself, so make a copy. */ |
| 1394 | copy = build_tree_list (NULL__null, NULL__null); |
| 1395 | tree saved_body = DECL_SAVED_TREE (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1395, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree ); |
| 1396 | tree saved_parms = DECL_ARGUMENTS (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1396, __FUNCTION__, (FUNCTION_DECL)))->function_decl.arguments ); |
| 1397 | tree saved_result = DECL_RESULT (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1397, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result ); |
| 1398 | tree saved_fn = current_function_decl; |
| 1399 | DECL_SAVED_TREE (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1399, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree ) = fundef->body; |
| 1400 | DECL_ARGUMENTS (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1400, __FUNCTION__, (FUNCTION_DECL)))->function_decl.arguments ) = fundef->parms; |
| 1401 | DECL_RESULT (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1401, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result ) = fundef->result; |
| 1402 | current_function_decl = fundef->decl; |
| 1403 | TREE_PURPOSE (copy)((tree_check ((copy), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1403, __FUNCTION__, (TREE_LIST)))->list.purpose) = copy_fn (fundef->decl, TREE_VALUE (copy)((tree_check ((copy), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1403, __FUNCTION__, (TREE_LIST)))->list.value), |
| 1404 | TREE_TYPE (copy)((contains_struct_check ((copy), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1404, __FUNCTION__))->typed.type)); |
| 1405 | current_function_decl = saved_fn; |
| 1406 | DECL_RESULT (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1406, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result ) = saved_result; |
| 1407 | DECL_ARGUMENTS (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1407, __FUNCTION__, (FUNCTION_DECL)))->function_decl.arguments ) = saved_parms; |
| 1408 | DECL_SAVED_TREE (fundef->decl)((tree_check ((fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1408, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree ) = saved_body; |
| 1409 | } |
| 1410 | else |
| 1411 | { |
| 1412 | /* We have a cached function available. */ |
| 1413 | copy = *slot; |
| 1414 | *slot = TREE_CHAIN (copy)((contains_struct_check ((copy), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1414, __FUNCTION__))->common.chain); |
| 1415 | } |
| 1416 | |
| 1417 | return copy; |
| 1418 | } |
| 1419 | |
| 1420 | /* Save the copy COPY of function FUN for later reuse by |
| 1421 | get_fundef_copy(). By construction, there will always be an entry |
| 1422 | to find. */ |
| 1423 | |
| 1424 | static void |
| 1425 | save_fundef_copy (tree fun, tree copy) |
| 1426 | { |
| 1427 | tree *slot = fundef_copies_table->get (fun); |
| 1428 | TREE_CHAIN (copy)((contains_struct_check ((copy), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1428, __FUNCTION__))->common.chain) = *slot; |
| 1429 | *slot = copy; |
| 1430 | } |
| 1431 | |
| 1432 | /* Whether our evaluation wants a prvalue (e.g. CONSTRUCTOR or _CST), |
| 1433 | a glvalue (e.g. VAR_DECL or _REF), or nothing. */ |
| 1434 | |
| 1435 | enum value_cat { |
| 1436 | vc_prvalue = 0, |
| 1437 | vc_glvalue = 1, |
| 1438 | vc_discard = 2 |
| 1439 | }; |
| 1440 | |
| 1441 | static tree cxx_eval_constant_expression (const constexpr_ctx *, tree, |
| 1442 | value_cat, bool *, bool *, tree * = NULL__null); |
| 1443 | static tree cxx_fold_indirect_ref (const constexpr_ctx *, location_t, tree, tree, |
| 1444 | bool * = NULL__null); |
| 1445 | static tree find_heap_var_refs (tree *, int *, void *); |
| 1446 | |
| 1447 | /* Attempt to evaluate T which represents a call to a builtin function. |
| 1448 | We assume here that all builtin functions evaluate to scalar types |
| 1449 | represented by _CST nodes. */ |
| 1450 | |
| 1451 | static tree |
| 1452 | cxx_eval_builtin_function_call (const constexpr_ctx *ctx, tree t, tree fun, |
| 1453 | value_cat lval, |
| 1454 | bool *non_constant_p, bool *overflow_p) |
| 1455 | { |
| 1456 | const int nargs = call_expr_nargs (t)(((int)((unsigned long) (*tree_int_cst_elt_check (((tree_class_check ((t), (tcc_vl_exp), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1456, __FUNCTION__))->exp.operands[0]), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1456, __FUNCTION__)))) - 3); |
| 1457 | tree *args = (tree *) alloca (nargs * sizeof (tree))__builtin_alloca(nargs * sizeof (tree)); |
| 1458 | tree new_call; |
| 1459 | int i; |
| 1460 | |
| 1461 | /* Don't fold __builtin_constant_p within a constexpr function. */ |
| 1462 | bool bi_const_p = DECL_IS_BUILTIN_CONSTANT_P (fun)(((enum tree_code) (fun)->base.code) == FUNCTION_DECL && ((built_in_class) (tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1462, __FUNCTION__, (FUNCTION_DECL)))->function_decl.built_in_class ) == BUILT_IN_NORMAL && DECL_FUNCTION_CODE (fun) == BUILT_IN_CONSTANT_P ); |
| 1463 | |
| 1464 | /* If we aren't requiring a constant expression, defer __builtin_constant_p |
| 1465 | in a constexpr function until we have values for the parameters. */ |
| 1466 | if (bi_const_p |
| 1467 | && ctx->manifestly_const_eval != mce_true |
| 1468 | && current_function_decl |
| 1469 | && DECL_DECLARED_CONSTEXPR_P (current_function_decl)((contains_struct_check (((tree_check2 (((((enum tree_code) ( current_function_decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> (( ((tree_check ((current_function_decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1469, __FUNCTION__, (TEMPLATE_DECL))))))))->result : current_function_decl )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1469, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1469, __FUNCTION__))->decl_common.lang_flag_8)) |
| 1470 | { |
| 1471 | *non_constant_p = true; |
| 1472 | return t; |
| 1473 | } |
| 1474 | |
| 1475 | /* For __builtin_is_constant_evaluated, defer it if not |
| 1476 | ctx->manifestly_const_eval (as sometimes we try to constant evaluate |
| 1477 | without manifestly_const_eval even expressions or parts thereof which |
| 1478 | will later be manifestly const_eval evaluated), otherwise fold it to |
| 1479 | true. */ |
| 1480 | if (fndecl_built_in_p (fun, CP_BUILT_IN_IS_CONSTANT_EVALUATED, |
| 1481 | BUILT_IN_FRONTEND)) |
| 1482 | { |
| 1483 | if (ctx->manifestly_const_eval == mce_unknown) |
| 1484 | { |
| 1485 | *non_constant_p = true; |
| 1486 | return t; |
| 1487 | } |
| 1488 | return constant_boolean_node (ctx->manifestly_const_eval == mce_true, |
| 1489 | boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE]); |
| 1490 | } |
| 1491 | |
| 1492 | if (fndecl_built_in_p (fun, CP_BUILT_IN_SOURCE_LOCATION, BUILT_IN_FRONTEND)) |
| 1493 | { |
| 1494 | temp_override<tree> ovr (current_function_decl); |
| 1495 | if (ctx->call && ctx->call->fundef) |
| 1496 | current_function_decl = ctx->call->fundef->decl; |
| 1497 | return fold_builtin_source_location (t); |
| 1498 | } |
| 1499 | |
| 1500 | int strops = 0; |
| 1501 | int strret = 0; |
| 1502 | if (fndecl_built_in_p (fun, BUILT_IN_NORMAL)) |
| 1503 | switch (DECL_FUNCTION_CODE (fun)) |
| 1504 | { |
| 1505 | case BUILT_IN_STRLEN: |
| 1506 | case BUILT_IN_STRNLEN: |
| 1507 | strops = 1; |
| 1508 | break; |
| 1509 | case BUILT_IN_MEMCHR: |
| 1510 | case BUILT_IN_STRCHR: |
| 1511 | case BUILT_IN_STRRCHR: |
| 1512 | strops = 1; |
| 1513 | strret = 1; |
| 1514 | break; |
| 1515 | case BUILT_IN_MEMCMP: |
| 1516 | case BUILT_IN_STRCMP: |
| 1517 | strops = 2; |
| 1518 | break; |
| 1519 | case BUILT_IN_STRSTR: |
| 1520 | strops = 2; |
| 1521 | strret = 1; |
| 1522 | break; |
| 1523 | case BUILT_IN_ASAN_POINTER_COMPARE: |
| 1524 | case BUILT_IN_ASAN_POINTER_SUBTRACT: |
| 1525 | /* These builtins shall be ignored during constant expression |
| 1526 | evaluation. */ |
| 1527 | return void_nodeglobal_trees[TI_VOID]; |
| 1528 | case BUILT_IN_UNREACHABLE: |
| 1529 | case BUILT_IN_TRAP: |
| 1530 | if (!*non_constant_p && !ctx->quiet) |
| 1531 | { |
| 1532 | /* Do not allow__builtin_unreachable in constexpr function. |
| 1533 | The __builtin_unreachable call with BUILTINS_LOCATION |
| 1534 | comes from cp_maybe_instrument_return. */ |
| 1535 | if (EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)) == BUILTINS_LOCATION((location_t) 1)) |
| 1536 | error ("%<constexpr%> call flows off the end of the function"); |
| 1537 | else |
| 1538 | error ("%q+E is not a constant expression", t); |
| 1539 | } |
| 1540 | *non_constant_p = true; |
| 1541 | return t; |
| 1542 | default: |
| 1543 | break; |
| 1544 | } |
| 1545 | |
| 1546 | /* Be permissive for arguments to built-ins; __builtin_constant_p should |
| 1547 | return constant false for a non-constant argument. */ |
| 1548 | constexpr_ctx new_ctx = *ctx; |
| 1549 | new_ctx.quiet = true; |
| 1550 | for (i = 0; i < nargs; ++i) |
| 1551 | { |
| 1552 | tree arg = CALL_EXPR_ARG (t, i)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1552, __FUNCTION__, (CALL_EXPR)))), ((i) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1552, __FUNCTION__))))); |
| 1553 | tree oarg = arg; |
| 1554 | |
| 1555 | /* To handle string built-ins we need to pass ADDR_EXPR<STRING_CST> since |
| 1556 | expand_builtin doesn't know how to look in the values table. */ |
| 1557 | bool strop = i < strops; |
| 1558 | if (strop) |
| 1559 | { |
| 1560 | STRIP_NOPS (arg)(arg) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg))))); |
| 1561 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == ADDR_EXPR) |
| 1562 | arg = TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1562, __FUNCTION__))))); |
| 1563 | else |
| 1564 | strop = false; |
| 1565 | } |
| 1566 | |
| 1567 | /* If builtin_valid_in_constant_expr_p is true, |
| 1568 | potential_constant_expression_1 has not recursed into the arguments |
| 1569 | of the builtin, verify it here. */ |
| 1570 | if (!builtin_valid_in_constant_expr_p (fun) |
| 1571 | || potential_constant_expression (arg)) |
| 1572 | { |
| 1573 | bool dummy1 = false, dummy2 = false; |
| 1574 | arg = cxx_eval_constant_expression (&new_ctx, arg, vc_prvalue, |
| 1575 | &dummy1, &dummy2); |
| 1576 | } |
| 1577 | |
| 1578 | if (bi_const_p) |
| 1579 | /* For __builtin_constant_p, fold all expressions with constant values |
| 1580 | even if they aren't C++ constant-expressions. */ |
| 1581 | arg = cp_fold_rvalue (arg); |
| 1582 | else if (strop) |
| 1583 | { |
| 1584 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == CONSTRUCTOR) |
| 1585 | arg = braced_lists_to_strings (TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1585, __FUNCTION__))->typed.type), arg); |
| 1586 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == STRING_CST) |
| 1587 | arg = build_address (arg); |
| 1588 | else |
| 1589 | arg = oarg; |
| 1590 | } |
| 1591 | |
| 1592 | args[i] = arg; |
| 1593 | } |
| 1594 | |
| 1595 | bool save_ffbcp = force_folding_builtin_constant_p; |
| 1596 | force_folding_builtin_constant_p |= ctx->manifestly_const_eval == mce_true; |
| 1597 | tree save_cur_fn = current_function_decl; |
| 1598 | /* Return name of ctx->call->fundef->decl for __builtin_FUNCTION (). */ |
| 1599 | if (fndecl_built_in_p (fun, BUILT_IN_FUNCTION) |
| 1600 | && ctx->call |
| 1601 | && ctx->call->fundef) |
| 1602 | current_function_decl = ctx->call->fundef->decl; |
| 1603 | if (fndecl_built_in_p (fun, |
| 1604 | CP_BUILT_IN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS, |
| 1605 | BUILT_IN_FRONTEND)) |
| 1606 | { |
| 1607 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 1608 | if (nargs >= 1) |
| 1609 | VERIFY_CONSTANT (args[0])do { if (verify_constant ((args[0]), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 1610 | new_call |
| 1611 | = fold_builtin_is_pointer_inverconvertible_with_class (loc, nargs, |
| 1612 | args); |
| 1613 | } |
| 1614 | else if (fndecl_built_in_p (fun, |
| 1615 | CP_BUILT_IN_IS_CORRESPONDING_MEMBER, |
| 1616 | BUILT_IN_FRONTEND)) |
| 1617 | { |
| 1618 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 1619 | if (nargs >= 2) |
| 1620 | { |
| 1621 | VERIFY_CONSTANT (args[0])do { if (verify_constant ((args[0]), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 1622 | VERIFY_CONSTANT (args[1])do { if (verify_constant ((args[1]), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 1623 | } |
| 1624 | new_call = fold_builtin_is_corresponding_member (loc, nargs, args); |
| 1625 | } |
| 1626 | else |
| 1627 | new_call = fold_builtin_call_array (EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)), TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1627, __FUNCTION__))->typed.type), |
| 1628 | CALL_EXPR_FN (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1628, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1628, __FUNCTION__))))), nargs, args); |
| 1629 | current_function_decl = save_cur_fn; |
| 1630 | force_folding_builtin_constant_p = save_ffbcp; |
| 1631 | if (new_call == NULL__null) |
| 1632 | { |
| 1633 | if (!*non_constant_p && !ctx->quiet) |
| 1634 | { |
| 1635 | new_call = build_call_array_loc (EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)), TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1635, __FUNCTION__))->typed.type), |
| 1636 | CALL_EXPR_FN (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1636, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1636, __FUNCTION__))))), nargs, args); |
| 1637 | error ("%q+E is not a constant expression", new_call); |
| 1638 | } |
| 1639 | *non_constant_p = true; |
| 1640 | return t; |
| 1641 | } |
| 1642 | |
| 1643 | if (!potential_constant_expression (new_call)) |
| 1644 | { |
| 1645 | if (!*non_constant_p && !ctx->quiet) |
| 1646 | error ("%q+E is not a constant expression", new_call); |
| 1647 | *non_constant_p = true; |
| 1648 | return t; |
| 1649 | } |
| 1650 | |
| 1651 | if (strret) |
| 1652 | { |
| 1653 | /* memchr returns a pointer into the first argument, but we replaced the |
| 1654 | argument above with a STRING_CST; put it back it now. */ |
| 1655 | tree op = CALL_EXPR_ARG (t, strret-1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1655, __FUNCTION__, (CALL_EXPR)))), ((strret-1) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1655, __FUNCTION__))))); |
| 1656 | STRIP_NOPS (new_call)(new_call) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((new_call))))); |
| 1657 | if (TREE_CODE (new_call)((enum tree_code) (new_call)->base.code) == POINTER_PLUS_EXPR) |
| 1658 | TREE_OPERAND (new_call, 0)(*((const_cast<tree*> (tree_operand_check ((new_call), ( 0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1658, __FUNCTION__))))) = op; |
| 1659 | else if (TREE_CODE (new_call)((enum tree_code) (new_call)->base.code) == ADDR_EXPR) |
| 1660 | new_call = op; |
| 1661 | } |
| 1662 | |
| 1663 | return cxx_eval_constant_expression (&new_ctx, new_call, lval, |
| 1664 | non_constant_p, overflow_p); |
| 1665 | } |
| 1666 | |
| 1667 | /* TEMP is the constant value of a temporary object of type TYPE. Adjust |
| 1668 | the type of the value to match. */ |
| 1669 | |
| 1670 | static tree |
| 1671 | adjust_temp_type (tree type, tree temp) |
| 1672 | { |
| 1673 | if (same_type_p (TREE_TYPE (temp), type)comptypes ((((contains_struct_check ((temp), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1673, __FUNCTION__))->typed.type)), (type), 0)) |
| 1674 | return temp; |
| 1675 | /* Avoid wrapping an aggregate value in a NOP_EXPR. */ |
| 1676 | if (TREE_CODE (temp)((enum tree_code) (temp)->base.code) == CONSTRUCTOR) |
| 1677 | { |
| 1678 | /* build_constructor wouldn't retain various CONSTRUCTOR flags. */ |
| 1679 | tree t = copy_node (temp); |
| 1680 | TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1680, __FUNCTION__))->typed.type) = type; |
| 1681 | return t; |
| 1682 | } |
| 1683 | if (TREE_CODE (temp)((enum tree_code) (temp)->base.code) == EMPTY_CLASS_EXPR) |
| 1684 | return build0 (EMPTY_CLASS_EXPR, type); |
| 1685 | gcc_assert (scalarish_type_p (type))((void)(!(scalarish_type_p (type)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1685, __FUNCTION__), 0 : 0)); |
| 1686 | /* Now we know we're dealing with a scalar, and a prvalue of non-class |
| 1687 | type is cv-unqualified. */ |
| 1688 | return cp_fold_convert (cv_unqualified (type), temp); |
| 1689 | } |
| 1690 | |
| 1691 | /* If T is a CONSTRUCTOR, return an unshared copy of T and any |
| 1692 | sub-CONSTRUCTORs. Otherwise return T. |
| 1693 | |
| 1694 | We use this whenever we initialize an object as a whole, whether it's a |
| 1695 | parameter, a local variable, or a subobject, so that subsequent |
| 1696 | modifications don't affect other places where it was used. */ |
| 1697 | |
| 1698 | tree |
| 1699 | unshare_constructor (tree t MEM_STAT_DECL) |
| 1700 | { |
| 1701 | if (!t || TREE_CODE (t)((enum tree_code) (t)->base.code) != CONSTRUCTOR) |
| 1702 | return t; |
| 1703 | auto_vec <tree*, 4> ptrs; |
| 1704 | ptrs.safe_push (&t); |
| 1705 | while (!ptrs.is_empty ()) |
| 1706 | { |
| 1707 | tree *p = ptrs.pop (); |
| 1708 | tree n = copy_node (*p PASS_MEM_STAT); |
| 1709 | CONSTRUCTOR_ELTS (n)((tree_check ((n), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1709, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts) = vec_safe_copy (CONSTRUCTOR_ELTS (*p)((tree_check ((*p), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1709, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts) PASS_MEM_STAT); |
| 1710 | *p = n; |
| 1711 | vec<constructor_elt, va_gc> *v = CONSTRUCTOR_ELTS (n)((tree_check ((n), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1711, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 1712 | constructor_elt *ce; |
| 1713 | for (HOST_WIDE_INTlong i = 0; vec_safe_iterate (v, i, &ce); ++i) |
| 1714 | if (ce->value && TREE_CODE (ce->value)((enum tree_code) (ce->value)->base.code) == CONSTRUCTOR) |
| 1715 | ptrs.safe_push (&ce->value); |
| 1716 | } |
| 1717 | return t; |
| 1718 | } |
| 1719 | |
| 1720 | /* If T is a CONSTRUCTOR, ggc_free T and any sub-CONSTRUCTORs. */ |
| 1721 | |
| 1722 | static void |
| 1723 | free_constructor (tree t) |
| 1724 | { |
| 1725 | if (!t || TREE_CODE (t)((enum tree_code) (t)->base.code) != CONSTRUCTOR) |
| 1726 | return; |
| 1727 | releasing_vec ctors; |
| 1728 | vec_safe_push (ctors, t); |
| 1729 | while (!ctors->is_empty ()) |
| 1730 | { |
| 1731 | tree c = ctors->pop (); |
| 1732 | if (vec<constructor_elt, va_gc> *elts = CONSTRUCTOR_ELTS (c)((tree_check ((c), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1732, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)) |
| 1733 | { |
| 1734 | constructor_elt *ce; |
| 1735 | for (HOST_WIDE_INTlong i = 0; vec_safe_iterate (elts, i, &ce); ++i) |
| 1736 | if (TREE_CODE (ce->value)((enum tree_code) (ce->value)->base.code) == CONSTRUCTOR) |
| 1737 | vec_safe_push (ctors, ce->value); |
| 1738 | ggc_free (elts); |
| 1739 | } |
| 1740 | ggc_free (c); |
| 1741 | } |
| 1742 | } |
| 1743 | |
| 1744 | /* Helper function of cxx_bind_parameters_in_call. Return non-NULL |
| 1745 | if *TP is address of a static variable (or part of it) currently being |
| 1746 | constructed or of a heap artificial variable. */ |
| 1747 | |
| 1748 | static tree |
| 1749 | addr_of_non_const_var (tree *tp, int *walk_subtrees, void *data) |
| 1750 | { |
| 1751 | if (TREE_CODE (*tp)((enum tree_code) (*tp)->base.code) == ADDR_EXPR) |
| 1752 | if (tree var = get_base_address (TREE_OPERAND (*tp, 0)(*((const_cast<tree*> (tree_operand_check ((*tp), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1752, __FUNCTION__))))))) |
| 1753 | if (VAR_P (var)(((enum tree_code) (var)->base.code) == VAR_DECL) && TREE_STATIC (var)((var)->base.static_flag)) |
| 1754 | { |
| 1755 | if (DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1755, __FUNCTION__))->decl_minimal.name) == heap_uninit_identifiercp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] |
| 1756 | || DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1756, __FUNCTION__))->decl_minimal.name) == heap_identifiercp_global_trees[CPTI_HEAP_IDENTIFIER] |
| 1757 | || DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1757, __FUNCTION__))->decl_minimal.name) == heap_vec_uninit_identifiercp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] |
| 1758 | || DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1758, __FUNCTION__))->decl_minimal.name) == heap_vec_identifiercp_global_trees[CPTI_HEAP_VEC_IDENTIFIER]) |
| 1759 | return var; |
| 1760 | |
| 1761 | constexpr_global_ctx *global = (constexpr_global_ctx *) data; |
| 1762 | if (global->get_value (var)) |
| 1763 | return var; |
| 1764 | } |
| 1765 | if (TYPE_P (*tp)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (*tp)->base.code))] == tcc_type)) |
| 1766 | *walk_subtrees = false; |
| 1767 | return NULL_TREE(tree) __null; |
| 1768 | } |
| 1769 | |
| 1770 | /* Subroutine of cxx_eval_call_expression. |
| 1771 | We are processing a call expression (either CALL_EXPR or |
| 1772 | AGGR_INIT_EXPR) in the context of CTX. Evaluate |
| 1773 | all arguments and bind their values to correspondings |
| 1774 | parameters, making up the NEW_CALL context. */ |
| 1775 | |
| 1776 | static tree |
| 1777 | cxx_bind_parameters_in_call (const constexpr_ctx *ctx, tree t, tree fun, |
| 1778 | bool *non_constant_p, bool *overflow_p, |
| 1779 | bool *non_constant_args) |
| 1780 | { |
| 1781 | const int nargs = call_expr_nargs (t)(((int)((unsigned long) (*tree_int_cst_elt_check (((tree_class_check ((t), (tcc_vl_exp), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1781, __FUNCTION__))->exp.operands[0]), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1781, __FUNCTION__)))) - 3); |
| 1782 | tree parms = DECL_ARGUMENTS (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1782, __FUNCTION__, (FUNCTION_DECL)))->function_decl.arguments ); |
| 1783 | int i; |
| 1784 | /* We don't record ellipsis args below. */ |
| 1785 | int nparms = list_length (parms); |
| 1786 | int nbinds = nargs < nparms ? nargs : nparms; |
| 1787 | tree binds = make_tree_vec (nbinds); |
| 1788 | for (i = 0; i < nargs; ++i) |
| 1789 | { |
| 1790 | tree x, arg; |
| 1791 | tree type = parms ? TREE_TYPE (parms)((contains_struct_check ((parms), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1791, __FUNCTION__))->typed.type) : void_type_nodeglobal_trees[TI_VOID_TYPE]; |
| 1792 | if (parms && DECL_BY_REFERENCE (parms)((tree_check3 ((parms), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1792, __FUNCTION__, (VAR_DECL), (PARM_DECL), (RESULT_DECL)) )->decl_common.decl_by_reference_flag)) |
| 1793 | type = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1793, __FUNCTION__))->typed.type); |
| 1794 | x = get_nth_callarg (t, i); |
| 1795 | /* For member function, the first argument is a pointer to the implied |
| 1796 | object. For a constructor, it might still be a dummy object, in |
| 1797 | which case we get the real argument from ctx. */ |
| 1798 | if (i == 0 && DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1798, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1798, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) |
| 1799 | && is_dummy_object (x)) |
| 1800 | { |
| 1801 | x = ctx->object; |
| 1802 | x = build_address (x); |
| 1803 | } |
| 1804 | if (TREE_ADDRESSABLE (type)((type)->base.addressable_flag)) |
| 1805 | /* Undo convert_for_arg_passing work here. */ |
| 1806 | x = convert_from_reference (x); |
| 1807 | /* Normally we would strip a TARGET_EXPR in an initialization context |
| 1808 | such as this, but here we do the elision differently: we keep the |
| 1809 | TARGET_EXPR, and use its CONSTRUCTOR as the value of the parm. */ |
| 1810 | arg = cxx_eval_constant_expression (ctx, x, vc_prvalue, |
| 1811 | non_constant_p, overflow_p); |
| 1812 | /* Don't VERIFY_CONSTANT here. */ |
| 1813 | if (*non_constant_p && ctx->quiet) |
| 1814 | break; |
| 1815 | /* Just discard ellipsis args after checking their constantitude. */ |
| 1816 | if (!parms) |
| 1817 | continue; |
| 1818 | |
| 1819 | if (!*non_constant_p) |
| 1820 | { |
| 1821 | /* Make sure the binding has the same type as the parm. But |
| 1822 | only for constant args. */ |
| 1823 | if (!TYPE_REF_P (type)(((enum tree_code) (type)->base.code) == REFERENCE_TYPE)) |
| 1824 | arg = adjust_temp_type (type, arg); |
| 1825 | if (!TREE_CONSTANT (arg)((non_type_check ((arg), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1825, __FUNCTION__))->base.constant_flag)) |
| 1826 | *non_constant_args = true; |
| 1827 | else if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (type)(((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1827, __FUNCTION__))->type_common.lang_flag_4))) |
| 1828 | /* The destructor needs to see any modifications the callee makes |
| 1829 | to the argument. */ |
| 1830 | *non_constant_args = true; |
| 1831 | /* If arg is or contains address of a heap artificial variable or |
| 1832 | of a static variable being constructed, avoid caching the |
| 1833 | function call, as those variables might be modified by the |
| 1834 | function, or might be modified by the callers in between |
| 1835 | the cached function and just read by the function. */ |
| 1836 | else if (!*non_constant_args |
| 1837 | && cp_walk_tree (&arg, addr_of_non_const_var, ctx->global,walk_tree_1 (&arg, addr_of_non_const_var, ctx->global, __null, cp_walk_subtrees) |
| 1838 | NULL)walk_tree_1 (&arg, addr_of_non_const_var, ctx->global, __null, cp_walk_subtrees)) |
| 1839 | *non_constant_args = true; |
| 1840 | |
| 1841 | /* For virtual calls, adjust the this argument, so that it is |
| 1842 | the object on which the method is called, rather than |
| 1843 | one of its bases. */ |
| 1844 | if (i == 0 && DECL_VIRTUAL_P (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1844, __FUNCTION__))->decl_common.virtual_flag)) |
| 1845 | { |
| 1846 | tree addr = arg; |
| 1847 | STRIP_NOPS (addr)(addr) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((addr))))); |
| 1848 | if (TREE_CODE (addr)((enum tree_code) (addr)->base.code) == ADDR_EXPR) |
| 1849 | { |
| 1850 | tree obj = TREE_OPERAND (addr, 0)(*((const_cast<tree*> (tree_operand_check ((addr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1850, __FUNCTION__))))); |
| 1851 | while (TREE_CODE (obj)((enum tree_code) (obj)->base.code) == COMPONENT_REF |
| 1852 | && DECL_FIELD_IS_BASE (TREE_OPERAND (obj, 1))((contains_struct_check (((tree_check (((*((const_cast<tree *> (tree_operand_check ((obj), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1852, __FUNCTION__)))))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1852, __FUNCTION__, (FIELD_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1852, __FUNCTION__))->decl_common.lang_flag_6) |
| 1853 | && !same_type_ignoring_top_level_qualifiers_p |
| 1854 | (TREE_TYPE (obj)((contains_struct_check ((obj), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1854, __FUNCTION__))->typed.type), DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1854, __FUNCTION__))->decl_minimal.context))) |
| 1855 | obj = TREE_OPERAND (obj, 0)(*((const_cast<tree*> (tree_operand_check ((obj), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1855, __FUNCTION__))))); |
| 1856 | if (obj != TREE_OPERAND (addr, 0)(*((const_cast<tree*> (tree_operand_check ((addr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1856, __FUNCTION__)))))) |
| 1857 | arg = build_fold_addr_expr_with_type (obj,build_fold_addr_expr_with_type_loc (((location_t) 0), (obj), ( (contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1858, __FUNCTION__))->typed.type)) |
| 1858 | TREE_TYPE (arg))build_fold_addr_expr_with_type_loc (((location_t) 0), (obj), ( (contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1858, __FUNCTION__))->typed.type)); |
| 1859 | } |
| 1860 | } |
| 1861 | TREE_VEC_ELT (binds, i)(*((const_cast<tree *> (tree_vec_elt_check ((binds), (i ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1861, __FUNCTION__))))) = arg; |
| 1862 | } |
| 1863 | parms = TREE_CHAIN (parms)((contains_struct_check ((parms), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1863, __FUNCTION__))->common.chain); |
| 1864 | } |
| 1865 | |
| 1866 | return binds; |
| 1867 | } |
| 1868 | |
| 1869 | /* Variables and functions to manage constexpr call expansion context. |
| 1870 | These do not need to be marked for PCH or GC. */ |
| 1871 | |
| 1872 | /* FIXME remember and print actual constant arguments. */ |
| 1873 | static vec<tree> call_stack; |
| 1874 | static int call_stack_tick; |
| 1875 | static int last_cx_error_tick; |
| 1876 | |
| 1877 | static int |
| 1878 | push_cx_call_context (tree call) |
| 1879 | { |
| 1880 | ++call_stack_tick; |
| 1881 | if (!EXPR_HAS_LOCATION (call)(((IS_ADHOC_LOC (((((call)) && ((tree_code_type_tmpl < 0>::tree_code_type[(int) (((enum tree_code) ((call))->base .code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) ((call))-> base.code))]) <= tcc_expression)) ? (call)->exp.locus : ((location_t) 0)))) ? get_location_from_adhoc_loc (line_table , ((((call)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((call))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((call))->base.code))]) <= tcc_expression )) ? (call)->exp.locus : ((location_t) 0))) : (((((call)) && ((tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) ((call))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) ((call))->base.code))]) <= tcc_expression)) ? (call)->exp.locus : ((location_t) 0)))) != ((location_t ) 0))) |
| 1882 | SET_EXPR_LOCATION (call, input_location)(expr_check (((call)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1882, __FUNCTION__))->exp.locus = (input_location); |
| 1883 | call_stack.safe_push (call); |
| 1884 | int len = call_stack.length (); |
| 1885 | if (len > max_constexpr_depthglobal_options.x_max_constexpr_depth) |
| 1886 | return false; |
| 1887 | return len; |
| 1888 | } |
| 1889 | |
| 1890 | static void |
| 1891 | pop_cx_call_context (void) |
| 1892 | { |
| 1893 | ++call_stack_tick; |
| 1894 | call_stack.pop (); |
| 1895 | } |
| 1896 | |
| 1897 | vec<tree> |
| 1898 | cx_error_context (void) |
| 1899 | { |
| 1900 | vec<tree> r = vNULL; |
| 1901 | if (call_stack_tick != last_cx_error_tick |
| 1902 | && !call_stack.is_empty ()) |
| 1903 | r = call_stack; |
| 1904 | last_cx_error_tick = call_stack_tick; |
| 1905 | return r; |
| 1906 | } |
| 1907 | |
| 1908 | /* E is an operand of a failed assertion, fold it either with or without |
| 1909 | constexpr context. */ |
| 1910 | |
| 1911 | static tree |
| 1912 | fold_operand (tree e, const constexpr_ctx *ctx) |
| 1913 | { |
| 1914 | if (ctx) |
| 1915 | { |
| 1916 | bool new_non_constant_p = false, new_overflow_p = false; |
| 1917 | e = cxx_eval_constant_expression (ctx, e, vc_prvalue, |
| 1918 | &new_non_constant_p, |
| 1919 | &new_overflow_p); |
| 1920 | } |
| 1921 | else |
| 1922 | e = fold_non_dependent_expr (e, tf_none, /*manifestly_const_eval=*/true); |
| 1923 | return e; |
| 1924 | } |
| 1925 | |
| 1926 | /* If we have a condition in conjunctive normal form (CNF), find the first |
| 1927 | failing clause. In other words, given an expression like |
| 1928 | |
| 1929 | true && true && false && true && false |
| 1930 | |
| 1931 | return the first 'false'. EXPR is the expression. */ |
| 1932 | |
| 1933 | static tree |
| 1934 | find_failing_clause_r (const constexpr_ctx *ctx, tree expr) |
| 1935 | { |
| 1936 | if (TREE_CODE (expr)((enum tree_code) (expr)->base.code) == TRUTH_ANDIF_EXPR) |
| 1937 | { |
| 1938 | /* First check the left side... */ |
| 1939 | tree e = find_failing_clause_r (ctx, TREE_OPERAND (expr, 0)(*((const_cast<tree*> (tree_operand_check ((expr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1939, __FUNCTION__)))))); |
| 1940 | if (e == NULL_TREE(tree) __null) |
| 1941 | /* ...if we didn't find a false clause, check the right side. */ |
| 1942 | e = find_failing_clause_r (ctx, TREE_OPERAND (expr, 1)(*((const_cast<tree*> (tree_operand_check ((expr), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1942, __FUNCTION__)))))); |
| 1943 | return e; |
| 1944 | } |
| 1945 | tree e = contextual_conv_bool (expr, tf_none); |
| 1946 | e = fold_operand (e, ctx); |
| 1947 | if (integer_zerop (e)) |
| 1948 | /* This is the failing clause. */ |
| 1949 | return expr; |
| 1950 | return NULL_TREE(tree) __null; |
| 1951 | } |
| 1952 | |
| 1953 | /* Wrapper for find_failing_clause_r. */ |
| 1954 | |
| 1955 | tree |
| 1956 | find_failing_clause (const constexpr_ctx *ctx, tree expr) |
| 1957 | { |
| 1958 | if (TREE_CODE (expr)((enum tree_code) (expr)->base.code) == TRUTH_ANDIF_EXPR) |
| 1959 | if (tree e = find_failing_clause_r (ctx, expr)) |
| 1960 | expr = e; |
| 1961 | return expr; |
| 1962 | } |
| 1963 | |
| 1964 | /* Emit additional diagnostics for failing condition BAD. |
| 1965 | Used by finish_static_assert and IFN_ASSUME constexpr diagnostics. |
| 1966 | If SHOW_EXPR_P is true, print the condition (because it was |
| 1967 | instantiation-dependent). */ |
| 1968 | |
| 1969 | void |
| 1970 | diagnose_failing_condition (tree bad, location_t cloc, bool show_expr_p, |
| 1971 | const constexpr_ctx *ctx /* = nullptr */) |
| 1972 | { |
| 1973 | /* Nobody wants to see the artificial (bool) cast. */ |
| 1974 | bad = tree_strip_nop_conversions (bad); |
| 1975 | if (TREE_CODE (bad)((enum tree_code) (bad)->base.code) == CLEANUP_POINT_EXPR) |
| 1976 | bad = TREE_OPERAND (bad, 0)(*((const_cast<tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1976, __FUNCTION__))))); |
| 1977 | |
| 1978 | /* Actually explain the failure if this is a concept check or a |
| 1979 | requires-expression. */ |
| 1980 | if (concept_check_p (bad) || TREE_CODE (bad)((enum tree_code) (bad)->base.code) == REQUIRES_EXPR) |
| 1981 | diagnose_constraints (cloc, bad, NULL_TREE(tree) __null); |
| 1982 | else if (COMPARISON_CLASS_P (bad)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (bad)->base.code))] == tcc_comparison) |
| 1983 | && ARITHMETIC_TYPE_P (TREE_TYPE (TREE_OPERAND (bad, 0)))((((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1983, __FUNCTION__))->typed.type))->base.code) == COMPLEX_TYPE )) |
| 1984 | { |
| 1985 | tree op0 = fold_operand (TREE_OPERAND (bad, 0)(*((const_cast<tree*> (tree_operand_check ((bad), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1985, __FUNCTION__))))), ctx); |
| 1986 | tree op1 = fold_operand (TREE_OPERAND (bad, 1)(*((const_cast<tree*> (tree_operand_check ((bad), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 1986, __FUNCTION__))))), ctx); |
| 1987 | tree cond = build2 (TREE_CODE (bad)((enum tree_code) (bad)->base.code), boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE], op0, op1); |
| 1988 | inform (cloc, "the comparison reduces to %qE", cond); |
| 1989 | } |
| 1990 | else if (show_expr_p) |
| 1991 | inform (cloc, "%qE evaluates to false", bad); |
| 1992 | } |
| 1993 | |
| 1994 | /* Process an assert/assume of ORIG_ARG. If it's not supposed to be evaluated, |
| 1995 | do it without changing the current evaluation state. If it evaluates to |
| 1996 | false, complain and return false; otherwise, return true. */ |
| 1997 | |
| 1998 | static bool |
| 1999 | cxx_eval_assert (const constexpr_ctx *ctx, tree arg, const char *msg, |
| 2000 | location_t loc, bool evaluated, |
| 2001 | bool *non_constant_p, bool *overflow_p) |
| 2002 | { |
| 2003 | if (*non_constant_p) |
| 2004 | return true; |
| 2005 | |
| 2006 | tree eval; |
| 2007 | if (!evaluated) |
| 2008 | { |
| 2009 | if (!potential_rvalue_constant_expression (arg)) |
| 2010 | return true; |
| 2011 | |
| 2012 | constexpr_ctx new_ctx = *ctx; |
| 2013 | new_ctx.quiet = true; |
| 2014 | bool new_non_constant_p = false, new_overflow_p = false; |
| 2015 | /* Avoid modification of existing values. */ |
| 2016 | modifiable_tracker ms (new_ctx.global); |
| 2017 | eval = cxx_eval_constant_expression (&new_ctx, arg, vc_prvalue, |
| 2018 | &new_non_constant_p, |
| 2019 | &new_overflow_p); |
| 2020 | } |
| 2021 | else |
| 2022 | eval = cxx_eval_constant_expression (ctx, arg, vc_prvalue, |
| 2023 | non_constant_p, |
| 2024 | overflow_p); |
| 2025 | if (!*non_constant_p && integer_zerop (eval)) |
| 2026 | { |
| 2027 | if (!ctx->quiet) |
| 2028 | { |
| 2029 | /* See if we can find which clause was failing |
| 2030 | (for logical AND). */ |
| 2031 | tree bad = find_failing_clause (ctx, arg); |
| 2032 | /* If not, or its location is unusable, fall back to the |
| 2033 | previous location. */ |
| 2034 | location_t cloc = cp_expr_loc_or_loc (bad, loc); |
| 2035 | |
| 2036 | /* Report the error. */ |
| 2037 | auto_diagnostic_group d; |
| 2038 | error_at (cloc, msg); |
| 2039 | diagnose_failing_condition (bad, cloc, true, ctx); |
| 2040 | return bad; |
| 2041 | } |
| 2042 | *non_constant_p = true; |
| 2043 | return false; |
| 2044 | } |
| 2045 | |
| 2046 | return true; |
| 2047 | } |
| 2048 | |
| 2049 | /* Evaluate a call T to a GCC internal function when possible and return |
| 2050 | the evaluated result or, under the control of CTX, give an error, set |
| 2051 | NON_CONSTANT_P, and return the unevaluated call T otherwise. */ |
| 2052 | |
| 2053 | static tree |
| 2054 | cxx_eval_internal_function (const constexpr_ctx *ctx, tree t, |
| 2055 | value_cat lval, |
| 2056 | bool *non_constant_p, bool *overflow_p) |
| 2057 | { |
| 2058 | enum tree_code opcode = ERROR_MARK; |
| 2059 | |
| 2060 | switch (CALL_EXPR_IFN (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2060, __FUNCTION__, (CALL_EXPR)))->base.u.ifn)) |
| 2061 | { |
| 2062 | case IFN_UBSAN_NULL: |
| 2063 | case IFN_UBSAN_BOUNDS: |
| 2064 | case IFN_UBSAN_VPTR: |
| 2065 | case IFN_FALLTHROUGH: |
| 2066 | return void_nodeglobal_trees[TI_VOID]; |
| 2067 | |
| 2068 | case IFN_ASSUME: |
| 2069 | if (!cxx_eval_assert (ctx, CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2069, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2069, __FUNCTION__))))), |
| 2070 | G_("failed %<assume%> attribute assumption")"failed %<assume%> attribute assumption", |
| 2071 | EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)), /*eval*/false, |
| 2072 | non_constant_p, overflow_p)) |
| 2073 | return t; |
| 2074 | return void_nodeglobal_trees[TI_VOID]; |
| 2075 | |
| 2076 | case IFN_ADD_OVERFLOW: |
| 2077 | opcode = PLUS_EXPR; |
| 2078 | break; |
| 2079 | case IFN_SUB_OVERFLOW: |
| 2080 | opcode = MINUS_EXPR; |
| 2081 | break; |
| 2082 | case IFN_MUL_OVERFLOW: |
| 2083 | opcode = MULT_EXPR; |
| 2084 | break; |
| 2085 | |
| 2086 | case IFN_LAUNDER: |
| 2087 | return cxx_eval_constant_expression (ctx, CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2087, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2087, __FUNCTION__))))), |
| 2088 | vc_prvalue, non_constant_p, |
| 2089 | overflow_p); |
| 2090 | |
| 2091 | case IFN_VEC_CONVERT: |
| 2092 | { |
| 2093 | tree arg = cxx_eval_constant_expression (ctx, CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2093, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2093, __FUNCTION__))))), |
| 2094 | vc_prvalue, non_constant_p, |
| 2095 | overflow_p); |
| 2096 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == VECTOR_CST) |
| 2097 | if (tree r = fold_const_call (CFN_VEC_CONVERT, TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2097, __FUNCTION__))->typed.type), arg)) |
| 2098 | return r; |
| 2099 | } |
| 2100 | /* FALLTHRU */ |
| 2101 | |
| 2102 | default: |
| 2103 | if (!ctx->quiet) |
| 2104 | error_at (cp_expr_loc_or_input_loc (t), |
| 2105 | "call to internal function %qE", t); |
| 2106 | *non_constant_p = true; |
| 2107 | return t; |
| 2108 | } |
| 2109 | |
| 2110 | /* Evaluate constant arguments using OPCODE and return a complex |
| 2111 | number containing the result and the overflow bit. */ |
| 2112 | tree arg0 = cxx_eval_constant_expression (ctx, CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2112, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2112, __FUNCTION__))))), lval, |
| 2113 | non_constant_p, overflow_p); |
| 2114 | tree arg1 = cxx_eval_constant_expression (ctx, CALL_EXPR_ARG (t, 1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2114, __FUNCTION__, (CALL_EXPR)))), ((1) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2114, __FUNCTION__))))), lval, |
| 2115 | non_constant_p, overflow_p); |
| 2116 | |
| 2117 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == INTEGER_CST && TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 2118 | { |
| 2119 | location_t loc = cp_expr_loc_or_input_loc (t); |
| 2120 | tree type = TREE_TYPE (TREE_TYPE (t))((contains_struct_check ((((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2120, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2120, __FUNCTION__))->typed.type); |
| 2121 | tree result = fold_binary_loc (loc, opcode, type, |
| 2122 | fold_convert_loc (loc, type, arg0), |
| 2123 | fold_convert_loc (loc, type, arg1)); |
| 2124 | tree ovf |
| 2125 | = build_int_cst (type, arith_overflowed_p (opcode, type, arg0, arg1)); |
| 2126 | /* Reset TREE_OVERFLOW to avoid warnings for the overflow. */ |
| 2127 | if (TREE_OVERFLOW (result)((tree_class_check ((result), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2127, __FUNCTION__))->base.public_flag)) |
| 2128 | TREE_OVERFLOW (result)((tree_class_check ((result), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2128, __FUNCTION__))->base.public_flag) = 0; |
| 2129 | |
| 2130 | return build_complex (TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2130, __FUNCTION__))->typed.type), result, ovf); |
| 2131 | } |
| 2132 | |
| 2133 | *non_constant_p = true; |
| 2134 | return t; |
| 2135 | } |
| 2136 | |
| 2137 | /* Clean CONSTRUCTOR_NO_CLEARING from CTOR and its sub-aggregates. */ |
| 2138 | |
| 2139 | static void |
| 2140 | clear_no_implicit_zero (tree ctor) |
| 2141 | { |
| 2142 | if (CONSTRUCTOR_NO_CLEARING (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2142, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 2143 | { |
| 2144 | CONSTRUCTOR_NO_CLEARING (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2144, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag) = false; |
| 2145 | for (auto &e: CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2145, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)) |
| 2146 | if (TREE_CODE (e.value)((enum tree_code) (e.value)->base.code) == CONSTRUCTOR) |
| 2147 | clear_no_implicit_zero (e.value); |
| 2148 | } |
| 2149 | } |
| 2150 | |
| 2151 | /* Complain about a const object OBJ being modified in a constant expression. |
| 2152 | EXPR is the MODIFY_EXPR expression performing the modification. */ |
| 2153 | |
| 2154 | static void |
| 2155 | modifying_const_object_error (tree expr, tree obj) |
| 2156 | { |
| 2157 | location_t loc = cp_expr_loc_or_input_loc (expr); |
| 2158 | auto_diagnostic_group d; |
| 2159 | error_at (loc, "modifying a const object %qE is not allowed in " |
| 2160 | "a constant expression", TREE_OPERAND (expr, 0)(*((const_cast<tree*> (tree_operand_check ((expr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2160, __FUNCTION__)))))); |
| 2161 | inform (location_of (obj), "originally declared %<const%> here"); |
| 2162 | } |
| 2163 | |
| 2164 | /* Return true if FNDECL is a replaceable global allocation function that |
| 2165 | should be useable during constant expression evaluation. */ |
| 2166 | |
| 2167 | static inline bool |
| 2168 | cxx_replaceable_global_alloc_fn (tree fndecl) |
| 2169 | { |
| 2170 | return (cxx_dialect >= cxx20 |
| 2171 | && IDENTIFIER_NEWDEL_OP_P (DECL_NAME (fndecl))(((((tree_not_check2 (((tree_check ((((contains_struct_check ( (fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) & (!((tree_not_check2 (((tree_check ((((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_1))) && ((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fndecl), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fndecl ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2171, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) & OVL_OP_FLAG_ALLOC) |
| 2172 | && CP_DECL_CONTEXT (fndecl)(!(! (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2172, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2172, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fndecl ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2172, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL]) == global_namespacecp_global_trees[CPTI_GLOBAL] |
| 2173 | && (DECL_IS_REPLACEABLE_OPERATOR_NEW_P (fndecl)((((tree_check ((fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2173, __FUNCTION__, (FUNCTION_DECL)))->function_decl.decl_type ) == OPERATOR_NEW) && ((tree_check ((fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2173, __FUNCTION__, (FUNCTION_DECL)))->function_decl.replaceable_operator )) |
| 2174 | || DECL_IS_OPERATOR_DELETE_P (fndecl)(((tree_check ((fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2174, __FUNCTION__, (FUNCTION_DECL)))->function_decl.decl_type ) == OPERATOR_DELETE))); |
| 2175 | } |
| 2176 | |
| 2177 | /* Return true if FNDECL is a placement new function that should be |
| 2178 | useable during constant expression evaluation of std::construct_at. */ |
| 2179 | |
| 2180 | static inline bool |
| 2181 | cxx_placement_new_fn (tree fndecl) |
| 2182 | { |
| 2183 | if (cxx_dialect >= cxx20 |
| 2184 | && IDENTIFIER_NEW_OP_P (DECL_NAME (fndecl))(((((tree_not_check2 (((tree_check ((((contains_struct_check ( (fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) & (!((tree_not_check2 (((tree_check ((((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_1))) && (((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fndecl), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fndecl ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2184, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE) ) == OVL_OP_FLAG_ALLOC) |
| 2185 | && CP_DECL_CONTEXT (fndecl)(!(! (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2185, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2185, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fndecl ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2185, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL]) == global_namespacecp_global_trees[CPTI_GLOBAL] |
| 2186 | && !DECL_IS_REPLACEABLE_OPERATOR_NEW_P (fndecl)((((tree_check ((fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2186, __FUNCTION__, (FUNCTION_DECL)))->function_decl.decl_type ) == OPERATOR_NEW) && ((tree_check ((fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2186, __FUNCTION__, (FUNCTION_DECL)))->function_decl.replaceable_operator )) |
| 2187 | && TREE_CODE (TREE_TYPE (fndecl))((enum tree_code) (((contains_struct_check ((fndecl), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2187, __FUNCTION__))->typed.type))->base.code) == FUNCTION_TYPE) |
| 2188 | { |
| 2189 | tree first_arg = TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (fndecl)))((contains_struct_check ((((tree_check2 ((((contains_struct_check ((fndecl), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2189, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2189, __FUNCTION__, (FUNCTION_TYPE), (METHOD_TYPE)))->type_non_common .values)), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2189, __FUNCTION__))->common.chain); |
| 2190 | if (TREE_VALUE (first_arg)((tree_check ((first_arg), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2190, __FUNCTION__, (TREE_LIST)))->list.value) == ptr_type_nodeglobal_trees[TI_PTR_TYPE] |
| 2191 | && TREE_CHAIN (first_arg)((contains_struct_check ((first_arg), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2191, __FUNCTION__))->common.chain) == void_list_nodeglobal_trees[TI_VOID_LIST_NODE]) |
| 2192 | return true; |
| 2193 | } |
| 2194 | return false; |
| 2195 | } |
| 2196 | |
| 2197 | /* Return true if FNDECL is std::construct_at. */ |
| 2198 | |
| 2199 | static inline bool |
| 2200 | is_std_construct_at (tree fndecl) |
| 2201 | { |
| 2202 | if (!decl_in_std_namespace_p (fndecl)) |
| 2203 | return false; |
| 2204 | |
| 2205 | tree name = DECL_NAME (fndecl)((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2205, __FUNCTION__))->decl_minimal.name); |
| 2206 | return name && id_equal (name, "construct_at"); |
| 2207 | } |
| 2208 | |
| 2209 | /* Overload for the above taking constexpr_call*. */ |
| 2210 | |
| 2211 | static inline bool |
| 2212 | is_std_construct_at (const constexpr_call *call) |
| 2213 | { |
| 2214 | return (call |
| 2215 | && call->fundef |
| 2216 | && is_std_construct_at (call->fundef->decl)); |
| 2217 | } |
| 2218 | |
| 2219 | /* True if CTX is an instance of std::allocator. */ |
| 2220 | |
| 2221 | bool |
| 2222 | is_std_allocator (tree ctx) |
| 2223 | { |
| 2224 | if (ctx == NULL_TREE(tree) __null || !CLASS_TYPE_P (ctx)(((((enum tree_code) (ctx)->base.code)) == RECORD_TYPE || ( ((enum tree_code) (ctx)->base.code)) == UNION_TYPE) && ((tree_class_check ((ctx), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2224, __FUNCTION__))->type_common.lang_flag_5)) || !TYPE_MAIN_DECL (ctx)((((contains_struct_check (((tree_class_check ((((tree_class_check ((ctx), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2224, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2224, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2224, __FUNCTION__))->common.chain)))) |
| 2225 | return false; |
| 2226 | |
| 2227 | tree decl = TYPE_MAIN_DECL (ctx)((((contains_struct_check (((tree_class_check ((((tree_class_check ((ctx), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2227, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2227, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2227, __FUNCTION__))->common.chain))); |
| 2228 | tree name = DECL_NAME (decl)((contains_struct_check ((decl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2228, __FUNCTION__))->decl_minimal.name); |
| 2229 | if (name == NULL_TREE(tree) __null || !id_equal (name, "allocator")) |
| 2230 | return false; |
| 2231 | |
| 2232 | return decl_in_std_namespace_p (decl); |
| 2233 | } |
| 2234 | |
| 2235 | /* Return true if FNDECL is std::allocator<T>::{,de}allocate. */ |
| 2236 | |
| 2237 | static inline bool |
| 2238 | is_std_allocator_allocate (tree fndecl) |
| 2239 | { |
| 2240 | tree name = DECL_NAME (fndecl)((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2240, __FUNCTION__))->decl_minimal.name); |
| 2241 | if (name == NULL_TREE(tree) __null |
| 2242 | || !(id_equal (name, "allocate") || id_equal (name, "deallocate"))) |
| 2243 | return false; |
| 2244 | |
| 2245 | return is_std_allocator (DECL_CONTEXT (fndecl)((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2245, __FUNCTION__))->decl_minimal.context)); |
| 2246 | } |
| 2247 | |
| 2248 | /* Overload for the above taking constexpr_call*. */ |
| 2249 | |
| 2250 | static inline bool |
| 2251 | is_std_allocator_allocate (const constexpr_call *call) |
| 2252 | { |
| 2253 | return (call |
| 2254 | && call->fundef |
| 2255 | && is_std_allocator_allocate (call->fundef->decl)); |
| 2256 | } |
| 2257 | |
| 2258 | /* Return true if FNDECL is __dynamic_cast. */ |
| 2259 | |
| 2260 | static inline bool |
| 2261 | cxx_dynamic_cast_fn_p (tree fndecl) |
| 2262 | { |
| 2263 | return (cxx_dialect >= cxx20 |
| 2264 | && id_equal (DECL_NAME (fndecl)((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2264, __FUNCTION__))->decl_minimal.name), "__dynamic_cast") |
| 2265 | && CP_DECL_CONTEXT (fndecl)(!(! (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2265, __FUNCTION__))->decl_minimal.context)) || ((enum tree_code ) (((contains_struct_check ((fndecl), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2265, __FUNCTION__))->decl_minimal.context))->base.code ) == TRANSLATION_UNIT_DECL) ? ((contains_struct_check ((fndecl ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2265, __FUNCTION__))->decl_minimal.context) : cp_global_trees [CPTI_GLOBAL]) == abi_nodecp_global_trees[CPTI_ABI]); |
| 2266 | } |
| 2267 | |
| 2268 | /* Often, we have an expression in the form of address + offset, e.g. |
| 2269 | "&_ZTV1A + 16". Extract the object from it, i.e. "_ZTV1A". */ |
| 2270 | |
| 2271 | static tree |
| 2272 | extract_obj_from_addr_offset (tree expr) |
| 2273 | { |
| 2274 | if (TREE_CODE (expr)((enum tree_code) (expr)->base.code) == POINTER_PLUS_EXPR) |
| 2275 | expr = TREE_OPERAND (expr, 0)(*((const_cast<tree*> (tree_operand_check ((expr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2275, __FUNCTION__))))); |
| 2276 | STRIP_NOPS (expr)(expr) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((expr))))); |
| 2277 | if (TREE_CODE (expr)((enum tree_code) (expr)->base.code) == ADDR_EXPR) |
| 2278 | expr = TREE_OPERAND (expr, 0)(*((const_cast<tree*> (tree_operand_check ((expr), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2278, __FUNCTION__))))); |
| 2279 | return expr; |
| 2280 | } |
| 2281 | |
| 2282 | /* Given a PATH like |
| 2283 | |
| 2284 | g.D.2181.D.2154.D.2102.D.2093 |
| 2285 | |
| 2286 | find a component with type TYPE. Return NULL_TREE if not found, and |
| 2287 | error_mark_node if the component is not accessible. If STOP is non-null, |
| 2288 | this function will return NULL_TREE if STOP is found before TYPE. */ |
| 2289 | |
| 2290 | static tree |
| 2291 | get_component_with_type (tree path, tree type, tree stop) |
| 2292 | { |
| 2293 | while (true) |
| 2294 | { |
| 2295 | if (same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (path)((contains_struct_check ((path), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2295, __FUNCTION__))->typed.type), type)) |
| 2296 | /* Found it. */ |
| 2297 | return path; |
| 2298 | else if (stop |
| 2299 | && (same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (path)((contains_struct_check ((path), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2299, __FUNCTION__))->typed.type), |
| 2300 | stop))) |
| 2301 | return NULL_TREE(tree) __null; |
| 2302 | else if (TREE_CODE (path)((enum tree_code) (path)->base.code) == COMPONENT_REF |
| 2303 | && DECL_FIELD_IS_BASE (TREE_OPERAND (path, 1))((contains_struct_check (((tree_check (((*((const_cast<tree *> (tree_operand_check ((path), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2303, __FUNCTION__)))))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2303, __FUNCTION__, (FIELD_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2303, __FUNCTION__))->decl_common.lang_flag_6)) |
| 2304 | { |
| 2305 | /* We need to check that the component we're accessing is in fact |
| 2306 | accessible. */ |
| 2307 | if (TREE_PRIVATE (TREE_OPERAND (path, 1))(((*((const_cast<tree*> (tree_operand_check ((path), (1 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2307, __FUNCTION__))))))->base.private_flag) |
| 2308 | || TREE_PROTECTED (TREE_OPERAND (path, 1))(((*((const_cast<tree*> (tree_operand_check ((path), (1 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2308, __FUNCTION__))))))->base.protected_flag)) |
| 2309 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 2310 | path = TREE_OPERAND (path, 0)(*((const_cast<tree*> (tree_operand_check ((path), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2310, __FUNCTION__))))); |
| 2311 | } |
| 2312 | else |
| 2313 | return NULL_TREE(tree) __null; |
| 2314 | } |
| 2315 | } |
| 2316 | |
| 2317 | /* Evaluate a call to __dynamic_cast (permitted by P1327R1). |
| 2318 | |
| 2319 | The declaration of __dynamic_cast is: |
| 2320 | |
| 2321 | void* __dynamic_cast (const void* __src_ptr, |
| 2322 | const __class_type_info* __src_type, |
| 2323 | const __class_type_info* __dst_type, |
| 2324 | ptrdiff_t __src2dst); |
| 2325 | |
| 2326 | where src2dst has the following possible values |
| 2327 | |
| 2328 | >-1: src_type is a unique public non-virtual base of dst_type |
| 2329 | dst_ptr + src2dst == src_ptr |
| 2330 | -1: unspecified relationship |
| 2331 | -2: src_type is not a public base of dst_type |
| 2332 | -3: src_type is a multiple public non-virtual base of dst_type |
| 2333 | |
| 2334 | Since literal types can't have virtual bases, we only expect hint >=0, |
| 2335 | -2, or -3. */ |
| 2336 | |
| 2337 | static tree |
| 2338 | cxx_eval_dynamic_cast_fn (const constexpr_ctx *ctx, tree call, |
| 2339 | bool *non_constant_p, bool *overflow_p) |
| 2340 | { |
| 2341 | /* T will be something like |
| 2342 | __dynamic_cast ((B*) b, &_ZTI1B, &_ZTI1D, 8) |
| 2343 | dismantle it. */ |
| 2344 | gcc_assert (call_expr_nargs (call) == 4)((void)(!((((int)((unsigned long) (*tree_int_cst_elt_check (( (tree_class_check ((call), (tcc_vl_exp), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2344, __FUNCTION__))->exp.operands[0]), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2344, __FUNCTION__)))) - 3) == 4) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2344, __FUNCTION__), 0 : 0)); |
| 2345 | tsubst_flags_t complain = ctx->quiet ? tf_none : tf_warning_or_error; |
| 2346 | tree obj = CALL_EXPR_ARG (call, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((call), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2346, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2346, __FUNCTION__))))); |
| 2347 | tree type = CALL_EXPR_ARG (call, 2)(*((const_cast<tree*> (tree_operand_check (((tree_check ((call), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2347, __FUNCTION__, (CALL_EXPR)))), ((2) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2347, __FUNCTION__))))); |
| 2348 | HOST_WIDE_INTlong hint = int_cst_value (CALL_EXPR_ARG (call, 3)(*((const_cast<tree*> (tree_operand_check (((tree_check ((call), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2348, __FUNCTION__, (CALL_EXPR)))), ((3) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2348, __FUNCTION__)))))); |
| 2349 | location_t loc = cp_expr_loc_or_input_loc (call); |
| 2350 | |
| 2351 | /* Get the target type of the dynamic_cast. */ |
| 2352 | gcc_assert (TREE_CODE (type) == ADDR_EXPR)((void)(!(((enum tree_code) (type)->base.code) == ADDR_EXPR ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2352, __FUNCTION__), 0 : 0)); |
| 2353 | type = TREE_OPERAND (type, 0)(*((const_cast<tree*> (tree_operand_check ((type), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2353, __FUNCTION__))))); |
| 2354 | type = TREE_TYPE (DECL_NAME (type))((contains_struct_check ((((contains_struct_check ((type), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2354, __FUNCTION__))->decl_minimal.name)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2354, __FUNCTION__))->typed.type); |
| 2355 | |
| 2356 | /* TYPE can only be either T* or T&. We can't know which of these it |
| 2357 | is by looking at TYPE, but OBJ will be "(T*) x" in the first case, |
| 2358 | and something like "(T*)(T&)(T*) x" in the second case. */ |
| 2359 | bool reference_p = false; |
| 2360 | while (CONVERT_EXPR_P (obj)((((enum tree_code) (obj)->base.code)) == NOP_EXPR || (((enum tree_code) (obj)->base.code)) == CONVERT_EXPR) || TREE_CODE (obj)((enum tree_code) (obj)->base.code) == SAVE_EXPR) |
| 2361 | { |
| 2362 | reference_p |= TYPE_REF_P (TREE_TYPE (obj))(((enum tree_code) (((contains_struct_check ((obj), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2362, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ); |
| 2363 | obj = TREE_OPERAND (obj, 0)(*((const_cast<tree*> (tree_operand_check ((obj), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2363, __FUNCTION__))))); |
| 2364 | } |
| 2365 | |
| 2366 | /* Evaluate the object so that we know its dynamic type. */ |
| 2367 | obj = cxx_eval_constant_expression (ctx, obj, vc_prvalue, non_constant_p, |
| 2368 | overflow_p); |
| 2369 | if (*non_constant_p) |
| 2370 | return call; |
| 2371 | |
| 2372 | /* We expect OBJ to be in form of &d.D.2102 when HINT == 0, |
| 2373 | but when HINT is > 0, it can also be something like |
| 2374 | &d.D.2102 + 18446744073709551608, which includes the BINFO_OFFSET. */ |
| 2375 | obj = extract_obj_from_addr_offset (obj); |
| 2376 | const tree objtype = TREE_TYPE (obj)((contains_struct_check ((obj), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2376, __FUNCTION__))->typed.type); |
| 2377 | /* If OBJ doesn't refer to a base field, we're done. */ |
| 2378 | if (tree t = (TREE_CODE (obj)((enum tree_code) (obj)->base.code) == COMPONENT_REF |
| 2379 | ? TREE_OPERAND (obj, 1)(*((const_cast<tree*> (tree_operand_check ((obj), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2379, __FUNCTION__))))) : obj)) |
| 2380 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) != FIELD_DECL || !DECL_FIELD_IS_BASE (t)((contains_struct_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2380, __FUNCTION__, (FIELD_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2380, __FUNCTION__))->decl_common.lang_flag_6)) |
| 2381 | { |
| 2382 | if (reference_p) |
| 2383 | { |
| 2384 | if (!ctx->quiet) |
| 2385 | { |
| 2386 | error_at (loc, "reference %<dynamic_cast%> failed"); |
| 2387 | inform (loc, "dynamic type %qT of its operand does " |
| 2388 | "not have a base class of type %qT", |
| 2389 | objtype, type); |
| 2390 | } |
| 2391 | *non_constant_p = true; |
| 2392 | } |
| 2393 | return integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]; |
| 2394 | } |
| 2395 | |
| 2396 | /* [class.cdtor] When a dynamic_cast is used in a constructor ... |
| 2397 | or in a destructor ... if the operand of the dynamic_cast refers |
| 2398 | to the object under construction or destruction, this object is |
| 2399 | considered to be a most derived object that has the type of the |
| 2400 | constructor or destructor's class. */ |
| 2401 | tree vtable = build_vfield_ref (obj, objtype); |
| 2402 | vtable = cxx_eval_constant_expression (ctx, vtable, vc_prvalue, |
| 2403 | non_constant_p, overflow_p); |
| 2404 | if (*non_constant_p) |
| 2405 | return call; |
| 2406 | /* With -fsanitize=vptr, we initialize all vtable pointers to null, |
| 2407 | so it's possible that we got a null pointer now. */ |
| 2408 | if (integer_zerop (vtable)) |
| 2409 | { |
| 2410 | if (!ctx->quiet) |
| 2411 | error_at (loc, "virtual table pointer is used uninitialized"); |
| 2412 | *non_constant_p = true; |
| 2413 | return integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]; |
| 2414 | } |
| 2415 | /* VTABLE will be &_ZTV1A + 16 or similar, get _ZTV1A. */ |
| 2416 | vtable = extract_obj_from_addr_offset (vtable); |
| 2417 | const tree mdtype = DECL_CONTEXT (vtable)((contains_struct_check ((vtable), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2417, __FUNCTION__))->decl_minimal.context); |
| 2418 | |
| 2419 | /* Given dynamic_cast<T>(v), |
| 2420 | |
| 2421 | [expr.dynamic.cast] If C is the class type to which T points or refers, |
| 2422 | the runtime check logically executes as follows: |
| 2423 | |
| 2424 | If, in the most derived object pointed (referred) to by v, v points |
| 2425 | (refers) to a public base class subobject of a C object, and if only |
| 2426 | one object of type C is derived from the subobject pointed (referred) |
| 2427 | to by v the result points (refers) to that C object. |
| 2428 | |
| 2429 | In this case, HINT >= 0 or -3. */ |
| 2430 | if (hint >= 0 || hint == -3) |
| 2431 | { |
| 2432 | /* Look for a component with type TYPE. */ |
| 2433 | tree t = get_component_with_type (obj, type, mdtype); |
| 2434 | /* If not accessible, give an error. */ |
| 2435 | if (t == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 2436 | { |
| 2437 | if (reference_p) |
| 2438 | { |
| 2439 | if (!ctx->quiet) |
| 2440 | { |
| 2441 | error_at (loc, "reference %<dynamic_cast%> failed"); |
| 2442 | inform (loc, "static type %qT of its operand is a " |
| 2443 | "non-public base class of dynamic type %qT", |
| 2444 | objtype, type); |
| 2445 | |
| 2446 | } |
| 2447 | *non_constant_p = true; |
| 2448 | } |
| 2449 | return integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]; |
| 2450 | } |
| 2451 | else if (t) |
| 2452 | /* The result points to the TYPE object. */ |
| 2453 | return cp_build_addr_expr (t, complain); |
| 2454 | /* Else, TYPE was not found, because the HINT turned out to be wrong. |
| 2455 | Fall through to the normal processing. */ |
| 2456 | } |
| 2457 | |
| 2458 | /* Otherwise, if v points (refers) to a public base class subobject of the |
| 2459 | most derived object, and the type of the most derived object has a base |
| 2460 | class, of type C, that is unambiguous and public, the result points |
| 2461 | (refers) to the C subobject of the most derived object. |
| 2462 | |
| 2463 | But it can also be an invalid case. */ |
| 2464 | |
| 2465 | /* Get the most derived object. */ |
| 2466 | obj = get_component_with_type (obj, mdtype, NULL_TREE(tree) __null); |
| 2467 | if (obj == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 2468 | { |
| 2469 | if (reference_p) |
| 2470 | { |
| 2471 | if (!ctx->quiet) |
| 2472 | { |
| 2473 | error_at (loc, "reference %<dynamic_cast%> failed"); |
| 2474 | inform (loc, "static type %qT of its operand is a non-public" |
| 2475 | " base class of dynamic type %qT", objtype, mdtype); |
| 2476 | } |
| 2477 | *non_constant_p = true; |
| 2478 | } |
| 2479 | return integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]; |
| 2480 | } |
| 2481 | else |
| 2482 | gcc_assert (obj)((void)(!(obj) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2482, __FUNCTION__), 0 : 0)); |
| 2483 | |
| 2484 | /* Check that the type of the most derived object has a base class |
| 2485 | of type TYPE that is unambiguous and public. */ |
| 2486 | base_kind b_kind; |
| 2487 | tree binfo = lookup_base (mdtype, type, ba_check, &b_kind, tf_none); |
| 2488 | if (!binfo || binfo == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 2489 | { |
| 2490 | if (reference_p) |
| 2491 | { |
| 2492 | if (!ctx->quiet) |
| 2493 | { |
| 2494 | error_at (loc, "reference %<dynamic_cast%> failed"); |
| 2495 | if (b_kind == bk_ambig) |
| 2496 | inform (loc, "%qT is an ambiguous base class of dynamic " |
| 2497 | "type %qT of its operand", type, mdtype); |
| 2498 | else |
| 2499 | inform (loc, "dynamic type %qT of its operand does not " |
| 2500 | "have an unambiguous public base class %qT", |
| 2501 | mdtype, type); |
| 2502 | } |
| 2503 | *non_constant_p = true; |
| 2504 | } |
| 2505 | return integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]; |
| 2506 | } |
| 2507 | /* If so, return the TYPE subobject of the most derived object. */ |
| 2508 | obj = convert_to_base_statically (obj, binfo); |
| 2509 | return cp_build_addr_expr (obj, complain); |
| 2510 | } |
| 2511 | |
| 2512 | /* Data structure used by replace_decl and replace_decl_r. */ |
| 2513 | |
| 2514 | struct replace_decl_data |
| 2515 | { |
| 2516 | /* The _DECL we want to replace. */ |
| 2517 | tree decl; |
| 2518 | /* The replacement for DECL. */ |
| 2519 | tree replacement; |
| 2520 | /* Trees we've visited. */ |
| 2521 | hash_set<tree> *pset; |
| 2522 | /* Whether we've performed any replacements. */ |
| 2523 | bool changed; |
| 2524 | }; |
| 2525 | |
| 2526 | /* Helper function for replace_decl, called through cp_walk_tree. */ |
| 2527 | |
| 2528 | static tree |
| 2529 | replace_decl_r (tree *tp, int *walk_subtrees, void *data) |
| 2530 | { |
| 2531 | replace_decl_data *d = (replace_decl_data *) data; |
| 2532 | |
| 2533 | if (*tp == d->decl) |
| 2534 | { |
| 2535 | *tp = unshare_expr (d->replacement); |
| 2536 | d->changed = true; |
| 2537 | *walk_subtrees = 0; |
| 2538 | } |
| 2539 | else if (TYPE_P (*tp)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (*tp)->base.code))] == tcc_type) |
| 2540 | || d->pset->add (*tp)) |
| 2541 | *walk_subtrees = 0; |
| 2542 | |
| 2543 | return NULL_TREE(tree) __null; |
| 2544 | } |
| 2545 | |
| 2546 | /* Replace every occurrence of DECL with (an unshared copy of) |
| 2547 | REPLACEMENT within the expression *TP. Returns true iff a |
| 2548 | replacement was performed. */ |
| 2549 | |
| 2550 | bool |
| 2551 | replace_decl (tree *tp, tree decl, tree replacement) |
| 2552 | { |
| 2553 | gcc_checking_assert (same_type_ignoring_top_level_qualifiers_p((void)(!(same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((decl), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__))->typed.type), ((contains_struct_check ((replacement), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__), 0 : 0)) |
| 2554 | (TREE_TYPE (decl), TREE_TYPE (replacement)))((void)(!(same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((decl), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__))->typed.type), ((contains_struct_check ((replacement), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2554, __FUNCTION__), 0 : 0)); |
| 2555 | hash_set<tree> pset; |
| 2556 | replace_decl_data data = { decl, replacement, &pset, false }; |
| 2557 | cp_walk_tree (tp, replace_decl_r, &data, NULL)walk_tree_1 (tp, replace_decl_r, &data, __null, cp_walk_subtrees ); |
| 2558 | return data.changed; |
| 2559 | } |
| 2560 | |
| 2561 | /* Evaluate the call T to virtual function thunk THUNK_FNDECL. */ |
| 2562 | |
| 2563 | static tree |
| 2564 | cxx_eval_thunk_call (const constexpr_ctx *ctx, tree t, tree thunk_fndecl, |
| 2565 | value_cat lval, |
| 2566 | bool *non_constant_p, bool *overflow_p) |
| 2567 | { |
| 2568 | tree function = THUNK_TARGET (thunk_fndecl)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2568, __FUNCTION__, (TEMPLATE_DECL))))))))->result : thunk_fndecl )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2568, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (thunk_fndecl)->base.code) == FUNCTION_DECL || (((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2568, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2568, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2568, __FUNCTION__); <->u.fn; })->befriending_classes ); |
| 2569 | |
| 2570 | if (THUNK_VIRTUAL_OFFSET (thunk_fndecl)(__extension__ ({ struct lang_decl *lt = ((contains_struct_check (((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__))->decl_common.lang_specific); if (!( (((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == VAR_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == FUNCTION_DECL ) || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == FIELD_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == CONST_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == TYPE_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == TEMPLATE_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == USING_DECL || ((enum tree_code) ((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__, (FUNCTION_DECL))))->base.code) == CONCEPT_DECL )) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2570, __FUNCTION__); <->u.min; })->access)) |
| 2571 | { |
| 2572 | if (!ctx->quiet) |
| 2573 | { |
| 2574 | if (!DECL_DECLARED_CONSTEXPR_P (function)((contains_struct_check (((tree_check2 (((((enum tree_code) ( function)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((function ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2574, __FUNCTION__, (TEMPLATE_DECL))))))))->result : function )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2574, __FUNCTION__, (VAR_DECL), (FUNCTION_DECL)))), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2574, __FUNCTION__))->decl_common.lang_flag_8)) |
| 2575 | { |
| 2576 | error ("call to non-%<constexpr%> function %qD", function); |
| 2577 | explain_invalid_constexpr_fn (function); |
| 2578 | } |
| 2579 | else |
| 2580 | /* virtual_offset is only set for virtual bases, which make the |
| 2581 | class non-literal, so we don't need to handle it here. */ |
| 2582 | error ("calling constexpr member function %qD through virtual " |
| 2583 | "base subobject", function); |
| 2584 | } |
| 2585 | *non_constant_p = true; |
| 2586 | return t; |
| 2587 | } |
| 2588 | |
| 2589 | tree new_call = copy_node (t); |
| 2590 | CALL_EXPR_FN (new_call)(*((const_cast<tree*> (tree_operand_check (((tree_check ((new_call), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2590, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2590, __FUNCTION__))))) = function; |
| 2591 | TREE_TYPE (new_call)((contains_struct_check ((new_call), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2591, __FUNCTION__))->typed.type) = TREE_TYPE (TREE_TYPE (function))((contains_struct_check ((((contains_struct_check ((function) , (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2591, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2591, __FUNCTION__))->typed.type); |
| 2592 | |
| 2593 | tree offset = size_int (THUNK_FIXED_OFFSET (thunk_fndecl))size_int_kind ((((contains_struct_check ((__extension__ ({ __typeof (thunk_fndecl) const __t = (thunk_fndecl); if (((enum tree_code ) (__t)->base.code) != FUNCTION_DECL || !__t->decl_common .lang_specific || !__t->decl_common.lang_specific->u.fn .thunk_p) tree_check_failed (__t, "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2593, __FUNCTION__, 0); __t; })), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2593, __FUNCTION__))->decl_common.lang_specific)->u.fn .u5.fixed_offset), stk_sizetype); |
| 2594 | |
| 2595 | if (DECL_THIS_THUNK_P (thunk_fndecl)((((enum tree_code) (thunk_fndecl)->base.code) == FUNCTION_DECL && ((contains_struct_check ((thunk_fndecl), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__))->decl_common.lang_specific) && __extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result : thunk_fndecl )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (thunk_fndecl)->base.code) == FUNCTION_DECL || (((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__); <->u.fn; })->thunk_p) && __extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result : thunk_fndecl )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (thunk_fndecl)->base.code) == FUNCTION_DECL || (((enum tree_code) (thunk_fndecl)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((thunk_fndecl ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2595, __FUNCTION__); <->u.fn; })->this_thunk_p)) |
| 2596 | { |
| 2597 | /* 'this'-adjusting thunk. */ |
| 2598 | tree this_arg = CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2598, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2598, __FUNCTION__))))); |
| 2599 | this_arg = build2 (POINTER_PLUS_EXPR, TREE_TYPE (this_arg)((contains_struct_check ((this_arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2599, __FUNCTION__))->typed.type), |
| 2600 | this_arg, offset); |
| 2601 | CALL_EXPR_ARG (new_call, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((new_call), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2601, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2601, __FUNCTION__))))) = this_arg; |
| 2602 | } |
| 2603 | else |
| 2604 | /* Return-adjusting thunk. */ |
| 2605 | new_call = build2 (POINTER_PLUS_EXPR, TREE_TYPE (new_call)((contains_struct_check ((new_call), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2605, __FUNCTION__))->typed.type), |
| 2606 | new_call, offset); |
| 2607 | |
| 2608 | return cxx_eval_constant_expression (ctx, new_call, lval, |
| 2609 | non_constant_p, overflow_p); |
| 2610 | } |
| 2611 | |
| 2612 | /* If OBJECT is of const class type, evaluate it to a CONSTRUCTOR and set |
| 2613 | its TREE_READONLY flag according to READONLY_P. Used for constexpr |
| 2614 | 'tors to detect modifying const objects in a constexpr context. */ |
| 2615 | |
| 2616 | static void |
| 2617 | cxx_set_object_constness (const constexpr_ctx *ctx, tree object, |
| 2618 | bool readonly_p, bool *non_constant_p, |
| 2619 | bool *overflow_p) |
| 2620 | { |
| 2621 | if (CLASS_TYPE_P (TREE_TYPE (object))(((((enum tree_code) (((contains_struct_check ((object), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2621, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((object), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2621, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((object ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2621, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2621, __FUNCTION__))->type_common.lang_flag_5)) |
| 2622 | && CP_TYPE_CONST_P (TREE_TYPE (object))((cp_type_quals (((contains_struct_check ((object), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2622, __FUNCTION__))->typed.type)) & TYPE_QUAL_CONST ) != 0)) |
| 2623 | { |
| 2624 | /* Subobjects might not be stored in ctx->global->values but we |
| 2625 | can get its CONSTRUCTOR by evaluating *this. */ |
| 2626 | tree e = cxx_eval_constant_expression (ctx, object, vc_prvalue, |
| 2627 | non_constant_p, overflow_p); |
| 2628 | if (TREE_CODE (e)((enum tree_code) (e)->base.code) == CONSTRUCTOR && !*non_constant_p) |
| 2629 | TREE_READONLY (e)((non_type_check ((e), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2629, __FUNCTION__))->base.readonly_flag) = readonly_p; |
| 2630 | } |
| 2631 | } |
| 2632 | |
| 2633 | /* Subroutine of cxx_eval_constant_expression. |
| 2634 | Evaluate the call expression tree T in the context of OLD_CALL expression |
| 2635 | evaluation. */ |
| 2636 | |
| 2637 | static tree |
| 2638 | cxx_eval_call_expression (const constexpr_ctx *ctx, tree t, |
| 2639 | value_cat lval, |
| 2640 | bool *non_constant_p, bool *overflow_p) |
| 2641 | { |
| 2642 | /* Handle concept checks separately. */ |
| 2643 | if (concept_check_p (t)) |
| 2644 | return evaluate_concept_check (t); |
| 2645 | |
| 2646 | location_t loc = cp_expr_loc_or_input_loc (t); |
| 2647 | tree fun = get_function_named_in_call (t); |
| 2648 | constexpr_call new_call |
| 2649 | = { NULL__null, NULL__null, NULL__null, 0, ctx->manifestly_const_eval }; |
| 2650 | int depth_ok; |
| 2651 | |
| 2652 | if (fun == NULL_TREE(tree) __null) |
| 2653 | return cxx_eval_internal_function (ctx, t, lval, |
| 2654 | non_constant_p, overflow_p); |
| 2655 | |
| 2656 | if (TREE_CODE (fun)((enum tree_code) (fun)->base.code) != FUNCTION_DECL) |
| 2657 | { |
| 2658 | /* Might be a constexpr function pointer. */ |
| 2659 | fun = cxx_eval_constant_expression (ctx, fun, vc_prvalue, |
| 2660 | non_constant_p, overflow_p); |
| 2661 | STRIP_NOPS (fun)(fun) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((fun))))); |
| 2662 | if (TREE_CODE (fun)((enum tree_code) (fun)->base.code) == ADDR_EXPR) |
| 2663 | fun = TREE_OPERAND (fun, 0)(*((const_cast<tree*> (tree_operand_check ((fun), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2663, __FUNCTION__))))); |
| 2664 | /* For TARGET_VTABLE_USES_DESCRIPTORS targets, there is no |
| 2665 | indirection, the called expression is a pointer into the |
| 2666 | virtual table which should contain FDESC_EXPR. Extract the |
| 2667 | FUNCTION_DECL from there. */ |
| 2668 | else if (TARGET_VTABLE_USES_DESCRIPTORS0 |
| 2669 | && TREE_CODE (fun)((enum tree_code) (fun)->base.code) == POINTER_PLUS_EXPR |
| 2670 | && TREE_CODE (TREE_OPERAND (fun, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((fun), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2670, __FUNCTION__))))))->base.code) == ADDR_EXPR |
| 2671 | && TREE_CODE (TREE_OPERAND (fun, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((fun), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2671, __FUNCTION__))))))->base.code) == INTEGER_CST) |
| 2672 | { |
| 2673 | tree d = TREE_OPERAND (TREE_OPERAND (fun, 0), 0)(*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((fun), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2673, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2673, __FUNCTION__))))); |
| 2674 | if (VAR_P (d)(((enum tree_code) (d)->base.code) == VAR_DECL) |
| 2675 | && DECL_VTABLE_OR_VTT_P (d)((contains_struct_check (((tree_check ((d), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2675, __FUNCTION__, (VAR_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2675, __FUNCTION__))->decl_common.virtual_flag) |
| 2676 | && TREE_CODE (TREE_TYPE (d))((enum tree_code) (((contains_struct_check ((d), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2676, __FUNCTION__))->typed.type))->base.code) == ARRAY_TYPE |
| 2677 | && TREE_TYPE (TREE_TYPE (d))((contains_struct_check ((((contains_struct_check ((d), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2677, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2677, __FUNCTION__))->typed.type) == vtable_entry_typecp_global_trees[CPTI_VTABLE_ENTRY_TYPE] |
| 2678 | && DECL_INITIAL (d)((contains_struct_check ((d), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2678, __FUNCTION__))->decl_common.initial) |
| 2679 | && TREE_CODE (DECL_INITIAL (d))((enum tree_code) (((contains_struct_check ((d), (TS_DECL_COMMON ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2679, __FUNCTION__))->decl_common.initial))->base.code ) == CONSTRUCTOR) |
| 2680 | { |
| 2681 | tree i = int_const_binop (TRUNC_DIV_EXPR, TREE_OPERAND (fun, 1)(*((const_cast<tree*> (tree_operand_check ((fun), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2681, __FUNCTION__))))), |
| 2682 | TYPE_SIZE_UNIT (vtable_entry_type)((tree_class_check ((cp_global_trees[CPTI_VTABLE_ENTRY_TYPE]) , (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2682, __FUNCTION__))->type_common.size_unit)); |
| 2683 | HOST_WIDE_INTlong idx = find_array_ctor_elt (DECL_INITIAL (d)((contains_struct_check ((d), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2683, __FUNCTION__))->decl_common.initial), i); |
| 2684 | if (idx >= 0) |
| 2685 | { |
| 2686 | tree fdesc |
| 2687 | = (*CONSTRUCTOR_ELTS (DECL_INITIAL (d))((tree_check ((((contains_struct_check ((d), (TS_DECL_COMMON) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2687, __FUNCTION__))->decl_common.initial)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2687, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[idx].value; |
| 2688 | if (TREE_CODE (fdesc)((enum tree_code) (fdesc)->base.code) == FDESC_EXPR |
| 2689 | && integer_zerop (TREE_OPERAND (fdesc, 1)(*((const_cast<tree*> (tree_operand_check ((fdesc), (1) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2689, __FUNCTION__))))))) |
| 2690 | fun = TREE_OPERAND (fdesc, 0)(*((const_cast<tree*> (tree_operand_check ((fdesc), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2690, __FUNCTION__))))); |
| 2691 | } |
| 2692 | } |
| 2693 | } |
| 2694 | } |
| 2695 | if (TREE_CODE (fun)((enum tree_code) (fun)->base.code) != FUNCTION_DECL) |
| 2696 | { |
| 2697 | if (!ctx->quiet && !*non_constant_p) |
| 2698 | error_at (loc, "expression %qE does not designate a %<constexpr%> " |
| 2699 | "function", fun); |
| 2700 | *non_constant_p = true; |
| 2701 | return t; |
| 2702 | } |
| 2703 | if (DECL_CLONED_FUNCTION_P (fun)(((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name) && ((!( (tree_not_check2 (((tree_check ((((contains_struct_check ((fun ), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) & ((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_1)) && !((((contains_struct_check ((fun), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_CTOR_IDENTIFIER]) || (((contains_struct_check ((fun), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_DTOR_IDENTIFIER]))) && !DECL_DELETING_DESTRUCTOR_P (fun)(((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2703, __FUNCTION__))->decl_minimal.name) == cp_global_trees [CPTI_DELETING_DTOR_IDENTIFIER])) |
| 2704 | fun = DECL_CLONED_FUNCTION (fun)(((contains_struct_check (((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2704, __FUNCTION__, (FUNCTION_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2704, __FUNCTION__))->decl_common.lang_specific)->u.fn .u5.cloned_function); |
| 2705 | |
| 2706 | if (is_ubsan_builtin_p (fun)) |
| 2707 | return void_nodeglobal_trees[TI_VOID]; |
| 2708 | |
| 2709 | if (fndecl_built_in_p (fun)) |
| 2710 | return cxx_eval_builtin_function_call (ctx, t, fun, |
| 2711 | lval, non_constant_p, overflow_p); |
| 2712 | if (DECL_THUNK_P (fun)(((enum tree_code) (fun)->base.code) == FUNCTION_DECL && ((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__))->decl_common.lang_specific) && __extension__ ({ struct lang_decl *lt = ((contains_struct_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__))->decl_common.lang_specific); if (!( ((enum tree_code) (fun)->base.code) == FUNCTION_DECL || (( (enum tree_code) (fun)->base.code) == TEMPLATE_DECL && ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__, (TEMPLATE_DECL))))))))->result != (tree ) __null && ((enum tree_code) (((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__, (TEMPLATE_DECL))))))))->result)-> base.code) == FUNCTION_DECL)) || lt->u.base.selector != lds_fn ) lang_check_failed ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2712, __FUNCTION__); <->u.fn; })->thunk_p)) |
| 2713 | return cxx_eval_thunk_call (ctx, t, fun, lval, non_constant_p, overflow_p); |
| 2714 | if (!maybe_constexpr_fn (fun)) |
| 2715 | { |
| 2716 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CALL_EXPR |
| 2717 | && cxx_replaceable_global_alloc_fn (fun) |
| 2718 | && (CALL_FROM_NEW_OR_DELETE_P (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2718, __FUNCTION__, (CALL_EXPR)))->base.protected_flag) |
| 2719 | || is_std_allocator_allocate (ctx->call))) |
| 2720 | { |
| 2721 | const int nargs = call_expr_nargs (t)(((int)((unsigned long) (*tree_int_cst_elt_check (((tree_class_check ((t), (tcc_vl_exp), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2721, __FUNCTION__))->exp.operands[0]), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2721, __FUNCTION__)))) - 3); |
| 2722 | tree arg0 = NULL_TREE(tree) __null; |
| 2723 | for (int i = 0; i < nargs; ++i) |
| 2724 | { |
| 2725 | tree arg = CALL_EXPR_ARG (t, i)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2725, __FUNCTION__, (CALL_EXPR)))), ((i) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2725, __FUNCTION__))))); |
| 2726 | arg = cxx_eval_constant_expression (ctx, arg, vc_prvalue, |
| 2727 | non_constant_p, overflow_p); |
| 2728 | VERIFY_CONSTANT (arg)do { if (verify_constant ((arg), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 2729 | if (i == 0) |
| 2730 | arg0 = arg; |
| 2731 | } |
| 2732 | gcc_assert (arg0)((void)(!(arg0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2732, __FUNCTION__), 0 : 0)); |
| 2733 | if (IDENTIFIER_NEW_OP_P (DECL_NAME (fun))(((((tree_not_check2 (((tree_check ((((contains_struct_check ( (fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) & (!((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_1))) && (((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2733, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) & (OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE) ) == OVL_OP_FLAG_ALLOC)) |
| 2734 | { |
| 2735 | tree type = build_array_type_nelts (char_type_nodeinteger_types[itk_char], |
| 2736 | tree_to_uhwi (arg0)); |
| 2737 | tree var = build_decl (loc, VAR_DECL, |
| 2738 | (IDENTIFIER_OVL_OP_FLAGS (DECL_NAME (fun))((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2738, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2738, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2738, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2738, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2738, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) |
| 2739 | & OVL_OP_FLAG_VEC) |
| 2740 | ? heap_vec_uninit_identifiercp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] |
| 2741 | : heap_uninit_identifiercp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER], |
| 2742 | type); |
| 2743 | DECL_ARTIFICIAL (var)((contains_struct_check ((var), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2743, __FUNCTION__))->decl_common.artificial_flag) = 1; |
| 2744 | TREE_STATIC (var)((var)->base.static_flag) = 1; |
| 2745 | // Temporarily register the artificial var in varpool, |
| 2746 | // so that comparisons of its address against NULL are folded |
| 2747 | // through nonzero_address even with |
| 2748 | // -fno-delete-null-pointer-checks or that comparison of |
| 2749 | // addresses of different heap artificial vars is folded too. |
| 2750 | // See PR98988 and PR99031. |
| 2751 | varpool_node::finalize_decl (var); |
| 2752 | ctx->global->heap_vars.safe_push (var); |
| 2753 | ctx->global->put_value (var, NULL_TREE(tree) __null); |
| 2754 | return fold_convert (ptr_type_node, build_address (var))fold_convert_loc (((location_t) 0), global_trees[TI_PTR_TYPE] , build_address (var)); |
| 2755 | } |
| 2756 | else |
| 2757 | { |
| 2758 | STRIP_NOPS (arg0)(arg0) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg0))))); |
| 2759 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == ADDR_EXPR |
| 2760 | && VAR_P (TREE_OPERAND (arg0, 0))(((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2760, __FUNCTION__))))))->base.code) == VAR_DECL)) |
| 2761 | { |
| 2762 | tree var = TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2762, __FUNCTION__))))); |
| 2763 | if (DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2763, __FUNCTION__))->decl_minimal.name) == heap_uninit_identifiercp_global_trees[CPTI_HEAP_UNINIT_IDENTIFIER] |
| 2764 | || DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2764, __FUNCTION__))->decl_minimal.name) == heap_identifiercp_global_trees[CPTI_HEAP_IDENTIFIER]) |
| 2765 | { |
| 2766 | if (IDENTIFIER_OVL_OP_FLAGS (DECL_NAME (fun))((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2766, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2766, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2766, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2766, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2766, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) |
| 2767 | & OVL_OP_FLAG_VEC) |
| 2768 | { |
| 2769 | if (!ctx->quiet) |
| 2770 | { |
| 2771 | error_at (loc, "array deallocation of object " |
| 2772 | "allocated with non-array " |
| 2773 | "allocation"); |
| 2774 | inform (DECL_SOURCE_LOCATION (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2774, __FUNCTION__))->decl_minimal.locus), |
| 2775 | "allocation performed here"); |
| 2776 | } |
| 2777 | *non_constant_p = true; |
| 2778 | return t; |
| 2779 | } |
| 2780 | DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2780, __FUNCTION__))->decl_minimal.name) = heap_deleted_identifiercp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER]; |
| 2781 | ctx->global->remove_value (var); |
| 2782 | ctx->global->heap_dealloc_count++; |
| 2783 | return void_nodeglobal_trees[TI_VOID]; |
| 2784 | } |
| 2785 | else if (DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2785, __FUNCTION__))->decl_minimal.name) == heap_vec_uninit_identifiercp_global_trees[CPTI_HEAP_VEC_UNINIT_IDENTIFIER] |
| 2786 | || DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2786, __FUNCTION__))->decl_minimal.name) == heap_vec_identifiercp_global_trees[CPTI_HEAP_VEC_IDENTIFIER]) |
| 2787 | { |
| 2788 | if ((IDENTIFIER_OVL_OP_FLAGS (DECL_NAME (fun))((&ovl_op_info[((tree_not_check2 (((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2788, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2788, __FUNCTION__, (IDENTIFIER_NODE)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2788, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_0)][((tree_check ((((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2788, __FUNCTION__))->decl_minimal.name)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2788, __FUNCTION__, (IDENTIFIER_NODE)))->base.u.bits.address_space )])->flags) |
| 2789 | & OVL_OP_FLAG_VEC) == 0) |
| 2790 | { |
| 2791 | if (!ctx->quiet) |
| 2792 | { |
| 2793 | error_at (loc, "non-array deallocation of " |
| 2794 | "object allocated with array " |
| 2795 | "allocation"); |
| 2796 | inform (DECL_SOURCE_LOCATION (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2796, __FUNCTION__))->decl_minimal.locus), |
| 2797 | "allocation performed here"); |
| 2798 | } |
| 2799 | *non_constant_p = true; |
| 2800 | return t; |
| 2801 | } |
| 2802 | DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2802, __FUNCTION__))->decl_minimal.name) = heap_deleted_identifiercp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER]; |
| 2803 | ctx->global->remove_value (var); |
| 2804 | ctx->global->heap_dealloc_count++; |
| 2805 | return void_nodeglobal_trees[TI_VOID]; |
| 2806 | } |
| 2807 | else if (DECL_NAME (var)((contains_struct_check ((var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2807, __FUNCTION__))->decl_minimal.name) == heap_deleted_identifiercp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER]) |
| 2808 | { |
| 2809 | if (!ctx->quiet) |
| 2810 | error_at (loc, "deallocation of already deallocated " |
| 2811 | "storage"); |
| 2812 | *non_constant_p = true; |
| 2813 | return t; |
| 2814 | } |
| 2815 | } |
| 2816 | if (!ctx->quiet) |
| 2817 | error_at (loc, "deallocation of storage that was " |
| 2818 | "not previously allocated"); |
| 2819 | *non_constant_p = true; |
| 2820 | return t; |
| 2821 | } |
| 2822 | } |
| 2823 | /* Allow placement new in std::construct_at, just return the second |
| 2824 | argument. */ |
| 2825 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == CALL_EXPR |
| 2826 | && cxx_placement_new_fn (fun) |
| 2827 | && is_std_construct_at (ctx->call)) |
| 2828 | { |
| 2829 | const int nargs = call_expr_nargs (t)(((int)((unsigned long) (*tree_int_cst_elt_check (((tree_class_check ((t), (tcc_vl_exp), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2829, __FUNCTION__))->exp.operands[0]), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2829, __FUNCTION__)))) - 3); |
| 2830 | tree arg1 = NULL_TREE(tree) __null; |
| 2831 | for (int i = 0; i < nargs; ++i) |
| 2832 | { |
| 2833 | tree arg = CALL_EXPR_ARG (t, i)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2833, __FUNCTION__, (CALL_EXPR)))), ((i) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2833, __FUNCTION__))))); |
| 2834 | arg = cxx_eval_constant_expression (ctx, arg, vc_prvalue, |
| 2835 | non_constant_p, overflow_p); |
| 2836 | if (i == 1) |
| 2837 | arg1 = arg; |
| 2838 | else |
| 2839 | VERIFY_CONSTANT (arg)do { if (verify_constant ((arg), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 2840 | } |
| 2841 | gcc_assert (arg1)((void)(!(arg1) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2841, __FUNCTION__), 0 : 0)); |
| 2842 | return arg1; |
| 2843 | } |
| 2844 | else if (cxx_dynamic_cast_fn_p (fun)) |
| 2845 | return cxx_eval_dynamic_cast_fn (ctx, t, non_constant_p, overflow_p); |
| 2846 | |
| 2847 | if (!ctx->quiet) |
| 2848 | { |
| 2849 | if (!lambda_static_thunk_p (fun)) |
| 2850 | error_at (loc, "call to non-%<constexpr%> function %qD", fun); |
| 2851 | explain_invalid_constexpr_fn (fun); |
| 2852 | } |
| 2853 | *non_constant_p = true; |
| 2854 | return t; |
| 2855 | } |
| 2856 | |
| 2857 | constexpr_ctx new_ctx = *ctx; |
| 2858 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2858, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2858, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) && !ctx->object |
| 2859 | && TREE_CODE (t)((enum tree_code) (t)->base.code) == AGGR_INIT_EXPR) |
| 2860 | { |
| 2861 | /* We want to have an initialization target for an AGGR_INIT_EXPR. |
| 2862 | If we don't already have one in CTX, use the AGGR_INIT_EXPR_SLOT. */ |
| 2863 | new_ctx.object = AGGR_INIT_EXPR_SLOT (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2863, __FUNCTION__, (AGGR_INIT_EXPR)))), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2863, __FUNCTION__))))); |
| 2864 | tree ctor = new_ctx.ctor = build_constructor (DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2864, __FUNCTION__))->decl_minimal.context), NULL__null); |
| 2865 | CONSTRUCTOR_NO_CLEARING (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2865, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag) = true; |
| 2866 | ctx->global->put_value (new_ctx.object, ctor); |
| 2867 | ctx = &new_ctx; |
| 2868 | } |
| 2869 | |
| 2870 | /* We used to shortcut trivial constructor/op= here, but nowadays |
| 2871 | we can only get a trivial function here with -fno-elide-constructors. */ |
| 2872 | gcc_checking_assert (!trivial_fn_p (fun)((void)(!(!trivial_fn_p (fun) || !global_options.x_flag_elide_constructors || scope_chain->noexcept_operand) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2876, __FUNCTION__), 0 : 0)) |
| 2873 | || !flag_elide_constructors((void)(!(!trivial_fn_p (fun) || !global_options.x_flag_elide_constructors || scope_chain->noexcept_operand) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2876, __FUNCTION__), 0 : 0)) |
| 2874 | /* We don't elide constructors when processing((void)(!(!trivial_fn_p (fun) || !global_options.x_flag_elide_constructors || scope_chain->noexcept_operand) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2876, __FUNCTION__), 0 : 0)) |
| 2875 | a noexcept-expression. */((void)(!(!trivial_fn_p (fun) || !global_options.x_flag_elide_constructors || scope_chain->noexcept_operand) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2876, __FUNCTION__), 0 : 0)) |
| 2876 | || cp_noexcept_operand)((void)(!(!trivial_fn_p (fun) || !global_options.x_flag_elide_constructors || scope_chain->noexcept_operand) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2876, __FUNCTION__), 0 : 0)); |
| 2877 | |
| 2878 | bool non_constant_args = false; |
| 2879 | new_call.bindings |
| 2880 | = cxx_bind_parameters_in_call (ctx, t, fun, non_constant_p, |
| 2881 | overflow_p, &non_constant_args); |
| 2882 | |
| 2883 | /* We build up the bindings list before we know whether we already have this |
| 2884 | call cached. If we don't end up saving these bindings, ggc_free them when |
| 2885 | this function exits. */ |
| 2886 | class free_bindings |
| 2887 | { |
| 2888 | tree *bindings; |
| 2889 | public: |
| 2890 | free_bindings (tree &b): bindings (&b) { } |
| 2891 | ~free_bindings () { if (bindings) ggc_free (*bindings); } |
| 2892 | void preserve () { bindings = NULL__null; } |
| 2893 | } fb (new_call.bindings); |
| 2894 | |
| 2895 | if (*non_constant_p) |
| 2896 | return t; |
| 2897 | |
| 2898 | /* We can't defer instantiating the function any longer. */ |
| 2899 | if (!DECL_INITIAL (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2899, __FUNCTION__))->decl_common.initial) |
| 2900 | && DECL_TEMPLOID_INSTANTIATION (fun)(((((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2900, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template) & 1) || (((contains_struct_check ((fun), ( TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2900, __FUNCTION__))->decl_common.lang_specific) && (((contains_struct_check ((template_info_decl_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2900, __FUNCTION__)), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2900, __FUNCTION__))->decl_common.lang_specific) ->u. min.template_info) && !(((contains_struct_check ((fun ), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2900, __FUNCTION__))->decl_common.lang_specific)->u.base .use_template))) |
| 2901 | && !uid_sensitive_constexpr_evaluation_p ()) |
| 2902 | { |
| 2903 | location_t save_loc = input_location; |
| 2904 | input_location = loc; |
| 2905 | ++function_depth; |
| 2906 | if (ctx->manifestly_const_eval == mce_true) |
| 2907 | FNDECL_MANIFESTLY_CONST_EVALUATED (fun)((tree_not_check2 (((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2907, __FUNCTION__, (FUNCTION_DECL)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2907, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_4) = true; |
| 2908 | instantiate_decl (fun, /*defer_ok*/false, /*expl_inst*/false); |
| 2909 | --function_depth; |
| 2910 | input_location = save_loc; |
| 2911 | } |
| 2912 | |
| 2913 | /* If in direct recursive call, optimize definition search. */ |
| 2914 | if (ctx && ctx->call && ctx->call->fundef && ctx->call->fundef->decl == fun) |
| 2915 | new_call.fundef = ctx->call->fundef; |
| 2916 | else |
| 2917 | { |
| 2918 | new_call.fundef = retrieve_constexpr_fundef (fun); |
| 2919 | if (new_call.fundef == NULL__null || new_call.fundef->body == NULL__null |
| 2920 | || new_call.fundef->result == error_mark_nodeglobal_trees[TI_ERROR_MARK] |
| 2921 | || fun == current_function_decl) |
| 2922 | { |
| 2923 | if (!ctx->quiet) |
| 2924 | { |
| 2925 | /* We need to check for current_function_decl here in case we're |
| 2926 | being called during cp_fold_function, because at that point |
| 2927 | DECL_INITIAL is set properly and we have a fundef but we |
| 2928 | haven't lowered invisirefs yet (c++/70344). */ |
| 2929 | if (DECL_INITIAL (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2929, __FUNCTION__))->decl_common.initial) == error_mark_nodeglobal_trees[TI_ERROR_MARK] |
| 2930 | || fun == current_function_decl) |
| 2931 | error_at (loc, "%qD called in a constant expression before its " |
| 2932 | "definition is complete", fun); |
| 2933 | else if (DECL_INITIAL (fun)((contains_struct_check ((fun), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2933, __FUNCTION__))->decl_common.initial)) |
| 2934 | { |
| 2935 | /* The definition of fun was somehow unsuitable. But pretend |
| 2936 | that lambda static thunks don't exist. */ |
| 2937 | if (!lambda_static_thunk_p (fun)) |
| 2938 | error_at (loc, "%qD called in a constant expression", fun); |
| 2939 | explain_invalid_constexpr_fn (fun); |
| 2940 | } |
| 2941 | else |
| 2942 | error_at (loc, "%qD used before its definition", fun); |
| 2943 | } |
| 2944 | *non_constant_p = true; |
| 2945 | return t; |
| 2946 | } |
| 2947 | } |
| 2948 | |
| 2949 | depth_ok = push_cx_call_context (t); |
| 2950 | |
| 2951 | /* Remember the object we are constructing or destructing. */ |
| 2952 | tree new_obj = NULL_TREE(tree) __null; |
| 2953 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2953, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2953, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ) || DECL_DESTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2953, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2953, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_destructor )) |
| 2954 | { |
| 2955 | /* In a cdtor, it should be the first `this' argument. |
| 2956 | At this point it has already been evaluated in the call |
| 2957 | to cxx_bind_parameters_in_call. */ |
| 2958 | new_obj = TREE_VEC_ELT (new_call.bindings, 0)(*((const_cast<tree *> (tree_vec_elt_check ((new_call.bindings ), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2958, __FUNCTION__))))); |
| 2959 | new_obj = cxx_fold_indirect_ref (ctx, loc, DECL_CONTEXT (fun)((contains_struct_check ((fun), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2959, __FUNCTION__))->decl_minimal.context), new_obj); |
| 2960 | |
| 2961 | if (ctx->call && ctx->call->fundef |
| 2962 | && DECL_CONSTRUCTOR_P (ctx->call->fundef->decl)((tree_check (((((enum tree_code) (ctx->call->fundef-> decl)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((ctx-> call->fundef->decl), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2962, __FUNCTION__, (TEMPLATE_DECL))))))))->result : ctx ->call->fundef->decl)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2962, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 2963 | { |
| 2964 | tree cur_obj = TREE_VEC_ELT (ctx->call->bindings, 0)(*((const_cast<tree *> (tree_vec_elt_check ((ctx->call ->bindings), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2964, __FUNCTION__))))); |
| 2965 | STRIP_NOPS (cur_obj)(cur_obj) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((cur_obj))))); |
| 2966 | if (TREE_CODE (cur_obj)((enum tree_code) (cur_obj)->base.code) == ADDR_EXPR) |
| 2967 | cur_obj = TREE_OPERAND (cur_obj, 0)(*((const_cast<tree*> (tree_operand_check ((cur_obj), ( 0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 2967, __FUNCTION__))))); |
| 2968 | if (new_obj == cur_obj) |
| 2969 | /* We're calling the target constructor of a delegating |
| 2970 | constructor, or accessing a base subobject through a |
| 2971 | NOP_EXPR as part of a call to a base constructor, so |
| 2972 | there is no new (sub)object. */ |
| 2973 | new_obj = NULL_TREE(tree) __null; |
| 2974 | } |
| 2975 | } |
| 2976 | |
| 2977 | tree result = NULL_TREE(tree) __null; |
| 2978 | |
| 2979 | constexpr_call *entry = NULL__null; |
| 2980 | if (depth_ok && !non_constant_args && ctx->strict) |
| 2981 | { |
| 2982 | new_call.hash = constexpr_fundef_hasher::hash (new_call.fundef); |
| 2983 | new_call.hash |
| 2984 | = iterative_hash_template_arg (new_call.bindings, new_call.hash); |
| 2985 | new_call.hash |
| 2986 | = iterative_hash_object (ctx->manifestly_const_eval, new_call.hash)iterative_hash (&ctx->manifestly_const_eval, sizeof (ctx ->manifestly_const_eval), new_call.hash); |
| 2987 | |
| 2988 | /* If we have seen this call before, we are done. */ |
| 2989 | maybe_initialize_constexpr_call_table (); |
| 2990 | bool insert = depth_ok < constexpr_cache_depthglobal_options.x_constexpr_cache_depth; |
| 2991 | constexpr_call **slot |
| 2992 | = constexpr_call_table->find_slot (&new_call, |
| 2993 | insert ? INSERT : NO_INSERT); |
| 2994 | entry = slot ? *slot : NULL__null; |
| 2995 | if (entry == NULL__null) |
| 2996 | { |
| 2997 | /* Only cache up to constexpr_cache_depth to limit memory use. */ |
| 2998 | if (insert) |
| 2999 | { |
| 3000 | /* We need to keep a pointer to the entry, not just the slot, as |
| 3001 | the slot can move during evaluation of the body. */ |
| 3002 | *slot = entry = ggc_alloc<constexpr_call> (); |
| 3003 | *entry = new_call; |
| 3004 | fb.preserve (); |
| 3005 | } |
| 3006 | } |
| 3007 | /* Calls that are in progress have their result set to NULL, so that we |
| 3008 | can detect circular dependencies. Now that we only cache up to |
| 3009 | constexpr_cache_depth this won't catch circular dependencies that |
| 3010 | start deeper, but they'll hit the recursion or ops limit. */ |
| 3011 | else if (entry->result == NULL__null) |
| 3012 | { |
| 3013 | if (!ctx->quiet) |
| 3014 | error ("call has circular dependency"); |
| 3015 | *non_constant_p = true; |
| 3016 | entry->result = result = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 3017 | } |
| 3018 | else |
| 3019 | result = entry->result; |
| 3020 | } |
| 3021 | |
| 3022 | if (!depth_ok) |
| 3023 | { |
| 3024 | if (!ctx->quiet) |
| 3025 | error ("%<constexpr%> evaluation depth exceeds maximum of %d (use " |
| 3026 | "%<-fconstexpr-depth=%> to increase the maximum)", |
| 3027 | max_constexpr_depthglobal_options.x_max_constexpr_depth); |
| 3028 | *non_constant_p = true; |
| 3029 | result = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 3030 | } |
| 3031 | else |
| 3032 | { |
| 3033 | bool cacheable = true; |
| 3034 | if (result && result != error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 3035 | /* OK */; |
| 3036 | else if (!DECL_SAVED_TREE (fun)((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3036, __FUNCTION__, (FUNCTION_DECL)))->function_decl.saved_tree )) |
| 3037 | { |
| 3038 | /* When at_eof >= 2, cgraph has started throwing away |
| 3039 | DECL_SAVED_TREE, so fail quietly. FIXME we get here because of |
| 3040 | late code generation for VEC_INIT_EXPR, which needs to be |
| 3041 | completely reconsidered. */ |
| 3042 | gcc_assert (at_eof >= 2 && ctx->quiet)((void)(!(at_eof >= 2 && ctx->quiet) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3042, __FUNCTION__), 0 : 0)); |
| 3043 | *non_constant_p = true; |
| 3044 | } |
| 3045 | else if (tree copy = get_fundef_copy (new_call.fundef)) |
| 3046 | { |
| 3047 | tree body, parms, res; |
| 3048 | releasing_vec ctors; |
| 3049 | |
| 3050 | /* Reuse or create a new unshared copy of this function's body. */ |
| 3051 | body = TREE_PURPOSE (copy)((tree_check ((copy), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3051, __FUNCTION__, (TREE_LIST)))->list.purpose); |
| 3052 | parms = TREE_VALUE (copy)((tree_check ((copy), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3052, __FUNCTION__, (TREE_LIST)))->list.value); |
| 3053 | res = TREE_TYPE (copy)((contains_struct_check ((copy), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3053, __FUNCTION__))->typed.type); |
| 3054 | |
| 3055 | /* Associate the bindings with the remapped parms. */ |
| 3056 | tree bound = new_call.bindings; |
| 3057 | tree remapped = parms; |
| 3058 | for (int i = 0; i < TREE_VEC_LENGTH (bound)((tree_check ((bound), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3058, __FUNCTION__, (TREE_VEC)))->base.u.length); ++i) |
| 3059 | { |
| 3060 | tree arg = TREE_VEC_ELT (bound, i)(*((const_cast<tree *> (tree_vec_elt_check ((bound), (i ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3060, __FUNCTION__))))); |
| 3061 | if (entry) |
| 3062 | { |
| 3063 | /* Unshare args going into the hash table to separate them |
| 3064 | from the caller's context, for better GC and to avoid |
| 3065 | problems with verify_gimple. */ |
| 3066 | arg = unshare_expr_without_location (arg); |
| 3067 | TREE_VEC_ELT (bound, i)(*((const_cast<tree *> (tree_vec_elt_check ((bound), (i ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3067, __FUNCTION__))))) = arg; |
| 3068 | |
| 3069 | /* And then unshare again so the callee doesn't change the |
| 3070 | argument values in the hash table. XXX Could we unshare |
| 3071 | lazily in cxx_eval_store_expression? */ |
| 3072 | arg = unshare_constructor (arg); |
| 3073 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == CONSTRUCTOR) |
| 3074 | vec_safe_push (ctors, arg); |
| 3075 | } |
| 3076 | ctx->global->put_value (remapped, arg); |
| 3077 | remapped = DECL_CHAIN (remapped)(((contains_struct_check (((contains_struct_check ((remapped) , (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3077, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3077, __FUNCTION__))->common.chain)); |
| 3078 | } |
| 3079 | /* Add the RESULT_DECL to the values map, too. */ |
| 3080 | gcc_assert (!DECL_BY_REFERENCE (res))((void)(!(!((tree_check3 ((res), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3080, __FUNCTION__, (VAR_DECL), (PARM_DECL), (RESULT_DECL)) )->decl_common.decl_by_reference_flag)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3080, __FUNCTION__), 0 : 0)); |
| 3081 | ctx->global->put_value (res, NULL_TREE(tree) __null); |
| 3082 | |
| 3083 | /* Track the callee's evaluated SAVE_EXPRs and TARGET_EXPRs so that |
| 3084 | we can forget their values after the call. */ |
| 3085 | constexpr_ctx ctx_with_save_exprs = *ctx; |
| 3086 | auto_vec<tree, 10> save_exprs; |
| 3087 | ctx_with_save_exprs.save_exprs = &save_exprs; |
| 3088 | ctx_with_save_exprs.call = &new_call; |
| 3089 | unsigned save_heap_alloc_count = ctx->global->heap_vars.length (); |
| 3090 | unsigned save_heap_dealloc_count = ctx->global->heap_dealloc_count; |
| 3091 | |
| 3092 | /* If this is a constexpr destructor, the object's const and volatile |
| 3093 | semantics are no longer in effect; see [class.dtor]p5. */ |
| 3094 | if (new_obj && DECL_DESTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3094, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3094, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_destructor )) |
| 3095 | cxx_set_object_constness (ctx, new_obj, /*readonly_p=*/false, |
| 3096 | non_constant_p, overflow_p); |
| 3097 | |
| 3098 | tree jump_target = NULL_TREE(tree) __null; |
| 3099 | cxx_eval_constant_expression (&ctx_with_save_exprs, body, |
| 3100 | vc_discard, non_constant_p, overflow_p, |
| 3101 | &jump_target); |
| 3102 | |
| 3103 | if (DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3103, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3103, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 3104 | { |
| 3105 | /* This can be null for a subobject constructor call, in |
| 3106 | which case what we care about is the initialization |
| 3107 | side-effects rather than the value. We could get at the |
| 3108 | value by evaluating *this, but we don't bother; there's |
| 3109 | no need to put such a call in the hash table. */ |
| 3110 | result = lval ? ctx->object : ctx->ctor; |
| 3111 | |
| 3112 | /* If we've just evaluated a subobject constructor call for an |
| 3113 | empty union member, it might not have produced a side effect |
| 3114 | that actually activated the union member. So produce such a |
| 3115 | side effect now to ensure the union appears initialized. */ |
| 3116 | if (!result && new_obj |
| 3117 | && TREE_CODE (new_obj)((enum tree_code) (new_obj)->base.code) == COMPONENT_REF |
| 3118 | && TREE_CODE (TREE_TYPE((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((new_obj), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3119, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3119, __FUNCTION__))->typed.type))->base.code) |
| 3119 | (TREE_OPERAND (new_obj, 0)))((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((new_obj), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3119, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3119, __FUNCTION__))->typed.type))->base.code) == UNION_TYPE |
| 3120 | && is_really_empty_class (TREE_TYPE (new_obj)((contains_struct_check ((new_obj), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3120, __FUNCTION__))->typed.type), |
| 3121 | /*ignore_vptr*/false)) |
| 3122 | { |
| 3123 | tree activate = build2 (MODIFY_EXPR, TREE_TYPE (new_obj)((contains_struct_check ((new_obj), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3123, __FUNCTION__))->typed.type), |
| 3124 | new_obj, |
| 3125 | build_constructor (TREE_TYPE (new_obj)((contains_struct_check ((new_obj), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3125, __FUNCTION__))->typed.type), |
| 3126 | NULL__null)); |
| 3127 | cxx_eval_constant_expression (ctx, activate, lval, |
| 3128 | non_constant_p, overflow_p); |
| 3129 | ggc_free (activate); |
| 3130 | } |
| 3131 | } |
| 3132 | else if (VOID_TYPE_P (TREE_TYPE (res))(((enum tree_code) (((contains_struct_check ((res), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3132, __FUNCTION__))->typed.type))->base.code) == VOID_TYPE )) |
| 3133 | result = void_nodeglobal_trees[TI_VOID]; |
| 3134 | else |
| 3135 | { |
| 3136 | result = ctx->global->get_value (res); |
| 3137 | if (result == NULL_TREE(tree) __null && !*non_constant_p |
| 3138 | && !DECL_DESTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3138, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3138, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_destructor )) |
| 3139 | { |
| 3140 | if (!ctx->quiet) |
| 3141 | error ("%<constexpr%> call flows off the end " |
| 3142 | "of the function"); |
| 3143 | *non_constant_p = true; |
| 3144 | } |
| 3145 | } |
| 3146 | |
| 3147 | /* At this point, the object's constructor will have run, so |
| 3148 | the object is no longer under construction, and its possible |
| 3149 | 'const' semantics now apply. Make a note of this fact by |
| 3150 | marking the CONSTRUCTOR TREE_READONLY. */ |
| 3151 | if (new_obj && DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3151, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3151, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor )) |
| 3152 | cxx_set_object_constness (ctx, new_obj, /*readonly_p=*/true, |
| 3153 | non_constant_p, overflow_p); |
| 3154 | |
| 3155 | /* Forget the saved values of the callee's SAVE_EXPRs and |
| 3156 | TARGET_EXPRs. */ |
| 3157 | for (tree save_expr : save_exprs) |
| 3158 | ctx->global->remove_value (save_expr); |
| 3159 | |
| 3160 | /* Remove the parms/result from the values map. Is it worth |
| 3161 | bothering to do this when the map itself is only live for |
| 3162 | one constexpr evaluation? If so, maybe also clear out |
| 3163 | other vars from call, maybe in BIND_EXPR handling? */ |
| 3164 | ctx->global->remove_value (res); |
| 3165 | for (tree parm = parms; parm; parm = TREE_CHAIN (parm)((contains_struct_check ((parm), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3165, __FUNCTION__))->common.chain)) |
| 3166 | ctx->global->remove_value (parm); |
| 3167 | |
| 3168 | /* Free any parameter CONSTRUCTORs we aren't returning directly. */ |
| 3169 | while (!ctors->is_empty ()) |
| 3170 | { |
| 3171 | tree c = ctors->pop (); |
| 3172 | if (c != result) |
| 3173 | free_constructor (c); |
| 3174 | } |
| 3175 | |
| 3176 | /* Make the unshared function copy we used available for re-use. */ |
| 3177 | save_fundef_copy (fun, copy); |
| 3178 | |
| 3179 | /* If the call allocated some heap object that hasn't been |
| 3180 | deallocated during the call, or if it deallocated some heap |
| 3181 | object it has not allocated, the call isn't really stateless |
| 3182 | for the constexpr evaluation and should not be cached. |
| 3183 | It is fine if the call allocates something and deallocates it |
| 3184 | too. */ |
| 3185 | if (entry |
| 3186 | && (save_heap_alloc_count != ctx->global->heap_vars.length () |
| 3187 | || (save_heap_dealloc_count |
| 3188 | != ctx->global->heap_dealloc_count))) |
| 3189 | { |
| 3190 | tree heap_var; |
| 3191 | unsigned int i; |
| 3192 | if ((ctx->global->heap_vars.length () |
| 3193 | - ctx->global->heap_dealloc_count) |
| 3194 | != save_heap_alloc_count - save_heap_dealloc_count) |
| 3195 | cacheable = false; |
| 3196 | else |
| 3197 | FOR_EACH_VEC_ELT_FROM (ctx->global->heap_vars, i, heap_var,for (i = (save_heap_alloc_count); (ctx->global->heap_vars ).iterate ((i), &(heap_var)); ++(i)) |
| 3198 | save_heap_alloc_count)for (i = (save_heap_alloc_count); (ctx->global->heap_vars ).iterate ((i), &(heap_var)); ++(i)) |
| 3199 | if (DECL_NAME (heap_var)((contains_struct_check ((heap_var), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3199, __FUNCTION__))->decl_minimal.name) != heap_deleted_identifiercp_global_trees[CPTI_HEAP_DELETED_IDENTIFIER]) |
| 3200 | { |
| 3201 | cacheable = false; |
| 3202 | break; |
| 3203 | } |
| 3204 | /* Also don't cache a call that returns a deallocated pointer. */ |
| 3205 | if (cacheable && (cp_walk_tree_without_duplicateswalk_tree_without_duplicates_1 (&result, find_heap_var_refs , __null, cp_walk_subtrees) |
| 3206 | (&result, find_heap_var_refs, NULL)walk_tree_without_duplicates_1 (&result, find_heap_var_refs , __null, cp_walk_subtrees))) |
| 3207 | cacheable = false; |
| 3208 | } |
| 3209 | |
| 3210 | /* Rewrite all occurrences of the function's RESULT_DECL with the |
| 3211 | current object under construction. */ |
| 3212 | if (!*non_constant_p && ctx->object |
| 3213 | && CLASS_TYPE_P (TREE_TYPE (res))(((((enum tree_code) (((contains_struct_check ((res), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3213, __FUNCTION__))->typed.type))->base.code)) == RECORD_TYPE || (((enum tree_code) (((contains_struct_check ((res), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3213, __FUNCTION__))->typed.type))->base.code)) == UNION_TYPE ) && ((tree_class_check ((((contains_struct_check ((res ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3213, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3213, __FUNCTION__))->type_common.lang_flag_5)) |
| 3214 | && !is_empty_class (TREE_TYPE (res)((contains_struct_check ((res), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3214, __FUNCTION__))->typed.type))) |
| 3215 | if (replace_decl (&result, res, ctx->object)) |
| 3216 | cacheable = false; |
| 3217 | } |
| 3218 | else |
| 3219 | /* Couldn't get a function copy to evaluate. */ |
| 3220 | *non_constant_p = true; |
| 3221 | |
| 3222 | if (result == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 3223 | *non_constant_p = true; |
| 3224 | if (*non_constant_p || *overflow_p) |
| 3225 | result = error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 3226 | else if (!result) |
| 3227 | result = void_nodeglobal_trees[TI_VOID]; |
| 3228 | if (entry) |
| 3229 | entry->result = cacheable ? result : error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 3230 | } |
| 3231 | |
| 3232 | /* The result of a constexpr function must be completely initialized. |
| 3233 | |
| 3234 | However, in C++20, a constexpr constructor doesn't necessarily have |
| 3235 | to initialize all the fields, so we don't clear CONSTRUCTOR_NO_CLEARING |
| 3236 | in order to detect reading an unitialized object in constexpr instead |
| 3237 | of value-initializing it. (reduced_constant_expression_p is expected to |
| 3238 | take care of clearing the flag.) */ |
| 3239 | if (TREE_CODE (result)((enum tree_code) (result)->base.code) == CONSTRUCTOR |
| 3240 | && (cxx_dialect < cxx20 |
| 3241 | || !DECL_CONSTRUCTOR_P (fun)((tree_check (((((enum tree_code) (fun)->base.code) == TEMPLATE_DECL ? ((struct tree_template_decl *)(const_cast<union tree_node *> ((((tree_check ((fun), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3241, __FUNCTION__, (TEMPLATE_DECL))))))))->result : fun )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3241, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.cxx_constructor ))) |
| 3242 | clear_no_implicit_zero (result); |
| 3243 | |
| 3244 | pop_cx_call_context (); |
| 3245 | return result; |
| 3246 | } |
| 3247 | |
| 3248 | /* Return true if T is a valid constant initializer. If a CONSTRUCTOR |
| 3249 | initializes all the members, the CONSTRUCTOR_NO_CLEARING flag will be |
| 3250 | cleared. |
| 3251 | FIXME speed this up, it's taking 16% of compile time on sieve testcase. */ |
| 3252 | |
| 3253 | bool |
| 3254 | reduced_constant_expression_p (tree t) |
| 3255 | { |
| 3256 | if (t == NULL_TREE(tree) __null) |
| 3257 | return false; |
| 3258 | |
| 3259 | switch (TREE_CODE (t)((enum tree_code) (t)->base.code)) |
| 3260 | { |
| 3261 | case PTRMEM_CST: |
| 3262 | /* Even if we can't lower this yet, it's constant. */ |
| 3263 | return true; |
| 3264 | |
| 3265 | case CONSTRUCTOR: |
| 3266 | /* And we need to handle PTRMEM_CST wrapped in a CONSTRUCTOR. */ |
| 3267 | tree field; |
| 3268 | if (TREE_CODE (TREE_TYPE (t))((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3268, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE) |
| 3269 | /* An initialized vector would have a VECTOR_CST. */ |
| 3270 | return false; |
| 3271 | if (CONSTRUCTOR_NO_CLEARING (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3271, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 3272 | { |
| 3273 | if (TREE_CODE (TREE_TYPE (t))((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3273, __FUNCTION__))->typed.type))->base.code) == ARRAY_TYPE) |
| 3274 | { |
| 3275 | /* There must be a valid constant initializer at every array |
| 3276 | index. */ |
| 3277 | tree min = TYPE_MIN_VALUE (TYPE_DOMAIN (TREE_TYPE (t)))((tree_check5 ((((tree_check ((((contains_struct_check ((t), ( TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3277, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3277, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3277, __FUNCTION__, (INTEGER_TYPE), (ENUMERAL_TYPE), (BOOLEAN_TYPE ), (REAL_TYPE), (FIXED_POINT_TYPE)))->type_non_common.minval ); |
| 3278 | tree max = TYPE_MAX_VALUE (TYPE_DOMAIN (TREE_TYPE (t)))((tree_check5 ((((tree_check ((((contains_struct_check ((t), ( TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3278, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3278, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3278, __FUNCTION__, (INTEGER_TYPE), (ENUMERAL_TYPE), (BOOLEAN_TYPE ), (REAL_TYPE), (FIXED_POINT_TYPE)))->type_non_common.maxval ); |
| 3279 | tree cursor = min; |
| 3280 | for (auto &e: CONSTRUCTOR_ELTS (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3280, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)) |
| 3281 | { |
| 3282 | if (!reduced_constant_expression_p (e.value)) |
| 3283 | return false; |
| 3284 | if (array_index_cmp (cursor, e.index) != 0) |
| 3285 | return false; |
| 3286 | if (TREE_CODE (e.index)((enum tree_code) (e.index)->base.code) == RANGE_EXPR) |
| 3287 | cursor = TREE_OPERAND (e.index, 1)(*((const_cast<tree*> (tree_operand_check ((e.index), ( 1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3287, __FUNCTION__))))); |
| 3288 | cursor = int_const_binop (PLUS_EXPR, cursor, size_one_nodeglobal_trees[TI_SIZE_ONE]); |
| 3289 | } |
| 3290 | if (find_array_ctor_elt (t, max) == -1) |
| 3291 | return false; |
| 3292 | goto ok; |
| 3293 | } |
| 3294 | else if (cxx_dialect >= cxx20 |
| 3295 | && TREE_CODE (TREE_TYPE (t))((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3295, __FUNCTION__))->typed.type))->base.code) == UNION_TYPE) |
| 3296 | { |
| 3297 | if (CONSTRUCTOR_NELTS (t)(vec_safe_length (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3297, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) == 0) |
| 3298 | /* An initialized union has a constructor element. */ |
| 3299 | return false; |
| 3300 | /* And it only initializes one member. */ |
| 3301 | field = NULL_TREE(tree) __null; |
| 3302 | } |
| 3303 | else |
| 3304 | field = next_subobject_field (TYPE_FIELDS (TREE_TYPE (t))((tree_check3 ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3304, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3304, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values)); |
| 3305 | } |
| 3306 | else |
| 3307 | field = NULL_TREE(tree) __null; |
| 3308 | for (auto &e: CONSTRUCTOR_ELTS (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3308, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)) |
| 3309 | { |
| 3310 | /* If VAL is null, we're in the middle of initializing this |
| 3311 | element. */ |
| 3312 | if (!reduced_constant_expression_p (e.value)) |
| 3313 | return false; |
| 3314 | /* We want to remove initializers for empty fields in a struct to |
| 3315 | avoid confusing output_constructor. */ |
| 3316 | if (is_empty_field (e.index) |
| 3317 | && TREE_CODE (TREE_TYPE (t))((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3317, __FUNCTION__))->typed.type))->base.code) == RECORD_TYPE) |
| 3318 | return false; |
| 3319 | /* Check for non-empty fields between initialized fields when |
| 3320 | CONSTRUCTOR_NO_CLEARING. */ |
| 3321 | for (; field && e.index != field; |
| 3322 | field = next_subobject_field (DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3322, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3322, __FUNCTION__))->common.chain)))) |
| 3323 | if (!is_really_empty_class (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3323, __FUNCTION__))->typed.type), |
| 3324 | /*ignore_vptr*/false)) |
| 3325 | return false; |
| 3326 | if (field) |
| 3327 | field = next_subobject_field (DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3327, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3327, __FUNCTION__))->common.chain))); |
| 3328 | } |
| 3329 | /* There could be a non-empty field at the end. */ |
| 3330 | for (; field; field = next_subobject_field (DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3330, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3330, __FUNCTION__))->common.chain)))) |
| 3331 | if (!is_really_empty_class (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3331, __FUNCTION__))->typed.type), /*ignore_vptr*/false)) |
| 3332 | return false; |
| 3333 | ok: |
| 3334 | if (CONSTRUCTOR_NO_CLEARING (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3334, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 3335 | /* All the fields are initialized. */ |
| 3336 | CONSTRUCTOR_NO_CLEARING (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3336, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag) = false; |
| 3337 | return true; |
| 3338 | |
| 3339 | default: |
| 3340 | /* FIXME are we calling this too much? */ |
| 3341 | return initializer_constant_valid_p (t, TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3341, __FUNCTION__))->typed.type)) != NULL_TREE(tree) __null; |
| 3342 | } |
| 3343 | } |
| 3344 | |
| 3345 | /* Some expressions may have constant operands but are not constant |
| 3346 | themselves, such as 1/0. Call this function to check for that |
| 3347 | condition. |
| 3348 | |
| 3349 | We only call this in places that require an arithmetic constant, not in |
| 3350 | places where we might have a non-constant expression that can be a |
| 3351 | component of a constant expression, such as the address of a constexpr |
| 3352 | variable that might be dereferenced later. */ |
| 3353 | |
| 3354 | static bool |
| 3355 | verify_constant (tree t, bool allow_non_constant, bool *non_constant_p, |
| 3356 | bool *overflow_p) |
| 3357 | { |
| 3358 | if (!*non_constant_p && !reduced_constant_expression_p (t) |
| 3359 | && t != void_nodeglobal_trees[TI_VOID]) |
| 3360 | { |
| 3361 | if (!allow_non_constant) |
| 3362 | error ("%q+E is not a constant expression", t); |
| 3363 | *non_constant_p = true; |
| 3364 | } |
| 3365 | if (TREE_OVERFLOW_P (t)((tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (t)->base.code))] == tcc_constant) && ( (tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3365, __FUNCTION__))->base.public_flag))) |
| 3366 | { |
| 3367 | if (!allow_non_constant) |
| 3368 | { |
| 3369 | permerror (input_location, "overflow in constant expression"); |
| 3370 | /* If we're being permissive (and are in an enforcing |
| 3371 | context), ignore the overflow. */ |
| 3372 | if (flag_permissiveglobal_options.x_flag_permissive) |
| 3373 | return *non_constant_p; |
| 3374 | } |
| 3375 | *overflow_p = true; |
| 3376 | } |
| 3377 | return *non_constant_p; |
| 3378 | } |
| 3379 | |
| 3380 | /* Check whether the shift operation with code CODE and type TYPE on LHS |
| 3381 | and RHS is undefined. If it is, give an error with an explanation, |
| 3382 | and return true; return false otherwise. */ |
| 3383 | |
| 3384 | static bool |
| 3385 | cxx_eval_check_shift_p (location_t loc, const constexpr_ctx *ctx, |
| 3386 | enum tree_code code, tree type, tree lhs, tree rhs) |
| 3387 | { |
| 3388 | if ((code != LSHIFT_EXPR && code != RSHIFT_EXPR) |
| 3389 | || TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) != INTEGER_CST |
| 3390 | || TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) != INTEGER_CST) |
| 3391 | return false; |
| 3392 | |
| 3393 | tree lhstype = TREE_TYPE (lhs)((contains_struct_check ((lhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3393, __FUNCTION__))->typed.type); |
| 3394 | unsigned HOST_WIDE_INTlong uprec = TYPE_PRECISION (TREE_TYPE (lhs))((tree_class_check ((((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3394, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3394, __FUNCTION__))->type_common.precision); |
| 3395 | |
| 3396 | /* [expr.shift] The behavior is undefined if the right operand |
| 3397 | is negative, or greater than or equal to the length in bits |
| 3398 | of the promoted left operand. */ |
| 3399 | if (tree_int_cst_sgn (rhs) == -1) |
| 3400 | { |
| 3401 | if (!ctx->quiet) |
| 3402 | permerror (loc, "right operand of shift expression %q+E is negative", |
| 3403 | build2_loc (loc, code, type, lhs, rhs)); |
| 3404 | return (!flag_permissiveglobal_options.x_flag_permissive || ctx->quiet); |
| 3405 | } |
| 3406 | if (compare_tree_int (rhs, uprec) >= 0) |
| 3407 | { |
| 3408 | if (!ctx->quiet) |
| 3409 | permerror (loc, "right operand of shift expression %q+E is greater " |
| 3410 | "than or equal to the precision %wu of the left operand", |
| 3411 | build2_loc (loc, code, type, lhs, rhs), uprec); |
| 3412 | return (!flag_permissiveglobal_options.x_flag_permissive || ctx->quiet); |
| 3413 | } |
| 3414 | |
| 3415 | /* The value of E1 << E2 is E1 left-shifted E2 bit positions; [...] |
| 3416 | if E1 has a signed type and non-negative value, and E1x2^E2 is |
| 3417 | representable in the corresponding unsigned type of the result type, |
| 3418 | then that value, converted to the result type, is the resulting value; |
| 3419 | otherwise, the behavior is undefined. |
| 3420 | For C++20: |
| 3421 | The value of E1 << E2 is the unique value congruent to E1 x 2^E2 modulo |
| 3422 | 2^N, where N is the range exponent of the type of the result. */ |
| 3423 | if (code == LSHIFT_EXPR |
| 3424 | && !TYPE_OVERFLOW_WRAPS (lhstype)((((enum tree_code) (lhstype)->base.code) == POINTER_TYPE || ((enum tree_code) (lhstype)->base.code) == REFERENCE_TYPE ) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((lhstype), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3424, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) |
| 3425 | && cxx_dialect >= cxx11 |
| 3426 | && cxx_dialect < cxx20) |
| 3427 | { |
| 3428 | if (tree_int_cst_sgn (lhs) == -1) |
| 3429 | { |
| 3430 | if (!ctx->quiet) |
| 3431 | permerror (loc, |
| 3432 | "left operand of shift expression %q+E is negative", |
| 3433 | build2_loc (loc, code, type, lhs, rhs)); |
| 3434 | return (!flag_permissiveglobal_options.x_flag_permissive || ctx->quiet); |
| 3435 | } |
| 3436 | /* For signed x << y the following: |
| 3437 | (unsigned) x >> ((prec (lhs) - 1) - y) |
| 3438 | if > 1, is undefined. The right-hand side of this formula |
| 3439 | is the highest bit of the LHS that can be set (starting from 0), |
| 3440 | so that the shift doesn't overflow. We then right-shift the LHS |
| 3441 | to see whether any other bit is set making the original shift |
| 3442 | undefined -- the result is not representable in the corresponding |
| 3443 | unsigned type. */ |
| 3444 | tree t = build_int_cst (unsigned_type_nodeinteger_types[itk_unsigned_int], uprec - 1); |
| 3445 | t = fold_build2 (MINUS_EXPR, unsigned_type_node, t, rhs)fold_build2_loc (((location_t) 0), MINUS_EXPR, integer_types[ itk_unsigned_int], t, rhs ); |
| 3446 | tree ulhs = fold_convert (unsigned_type_for (lhstype), lhs)fold_convert_loc (((location_t) 0), unsigned_type_for (lhstype ), lhs); |
| 3447 | t = fold_build2 (RSHIFT_EXPR, TREE_TYPE (ulhs), ulhs, t)fold_build2_loc (((location_t) 0), RSHIFT_EXPR, ((contains_struct_check ((ulhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3447, __FUNCTION__))->typed.type), ulhs, t ); |
| 3448 | if (tree_int_cst_lt (integer_one_nodeglobal_trees[TI_INTEGER_ONE], t)) |
| 3449 | { |
| 3450 | if (!ctx->quiet) |
| 3451 | permerror (loc, "shift expression %q+E overflows", |
| 3452 | build2_loc (loc, code, type, lhs, rhs)); |
| 3453 | return (!flag_permissiveglobal_options.x_flag_permissive || ctx->quiet); |
| 3454 | } |
| 3455 | } |
| 3456 | return false; |
| 3457 | } |
| 3458 | |
| 3459 | /* Subroutine of cxx_eval_constant_expression. |
| 3460 | Attempt to reduce the unary expression tree T to a compile time value. |
| 3461 | If successful, return the value. Otherwise issue a diagnostic |
| 3462 | and return error_mark_node. */ |
| 3463 | |
| 3464 | static tree |
| 3465 | cxx_eval_unary_expression (const constexpr_ctx *ctx, tree t, |
| 3466 | bool /*lval*/, |
| 3467 | bool *non_constant_p, bool *overflow_p) |
| 3468 | { |
| 3469 | tree r; |
| 3470 | tree orig_arg = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3470, __FUNCTION__))))); |
| 3471 | tree arg = cxx_eval_constant_expression (ctx, orig_arg, vc_prvalue, |
| 3472 | non_constant_p, overflow_p); |
| 3473 | VERIFY_CONSTANT (arg)do { if (verify_constant ((arg), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 3474 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 3475 | enum tree_code code = TREE_CODE (t)((enum tree_code) (t)->base.code); |
| 3476 | tree type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3476, __FUNCTION__))->typed.type); |
| 3477 | r = fold_unary_loc (loc, code, type, arg); |
| 3478 | if (r == NULL_TREE(tree) __null) |
| 3479 | { |
| 3480 | if (arg == orig_arg) |
| 3481 | r = t; |
| 3482 | else |
| 3483 | r = build1_loc (loc, code, type, arg); |
| 3484 | } |
| 3485 | VERIFY_CONSTANT (r)do { if (verify_constant ((r), ctx->quiet, non_constant_p, overflow_p)) return t; } while (0); |
| 3486 | return r; |
| 3487 | } |
| 3488 | |
| 3489 | /* Helper function for cxx_eval_binary_expression. Try to optimize |
| 3490 | original POINTER_PLUS_EXPR T, LHS p+ RHS, return NULL_TREE if the |
| 3491 | generic folding should be used. */ |
| 3492 | |
| 3493 | static tree |
| 3494 | cxx_fold_pointer_plus_expression (const constexpr_ctx *ctx, tree t, |
| 3495 | tree lhs, tree rhs, bool *non_constant_p, |
| 3496 | bool *overflow_p) |
| 3497 | { |
| 3498 | STRIP_NOPS (lhs)(lhs) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((lhs))))); |
| 3499 | if (TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) != ADDR_EXPR) |
| 3500 | return NULL_TREE(tree) __null; |
| 3501 | |
| 3502 | lhs = TREE_OPERAND (lhs, 0)(*((const_cast<tree*> (tree_operand_check ((lhs), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3502, __FUNCTION__))))); |
| 3503 | |
| 3504 | /* &A[i] p+ j => &A[i + j] */ |
| 3505 | if (TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == ARRAY_REF |
| 3506 | && TREE_CODE (TREE_OPERAND (lhs, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((lhs), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3506, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 3507 | && TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == INTEGER_CST |
| 3508 | && TYPE_SIZE_UNIT (TREE_TYPE (lhs))((tree_class_check ((((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3508, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3508, __FUNCTION__))->type_common.size_unit) |
| 3509 | && TREE_CODE (TYPE_SIZE_UNIT (TREE_TYPE (lhs)))((enum tree_code) (((tree_class_check ((((contains_struct_check ((lhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3509, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3509, __FUNCTION__))->type_common.size_unit))->base.code ) == INTEGER_CST) |
| 3510 | { |
| 3511 | tree orig_type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3511, __FUNCTION__))->typed.type); |
| 3512 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 3513 | tree type = TREE_TYPE (lhs)((contains_struct_check ((lhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3513, __FUNCTION__))->typed.type); |
| 3514 | |
| 3515 | t = fold_convert_loc (loc, ssizetypesizetype_tab[(int) stk_ssizetype], TREE_OPERAND (lhs, 1)(*((const_cast<tree*> (tree_operand_check ((lhs), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3515, __FUNCTION__)))))); |
| 3516 | tree nelts = array_type_nelts_top (TREE_TYPE (TREE_OPERAND (lhs, 0))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((lhs), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3516, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3516, __FUNCTION__))->typed.type)); |
| 3517 | nelts = cxx_eval_constant_expression (ctx, nelts, vc_prvalue, |
| 3518 | non_constant_p, overflow_p); |
| 3519 | if (*non_constant_p) |
| 3520 | return NULL_TREE(tree) __null; |
| 3521 | /* Don't fold an out-of-bound access. */ |
| 3522 | if (!tree_int_cst_le (t, nelts)) |
| 3523 | return NULL_TREE(tree) __null; |
| 3524 | rhs = cp_fold_convert (ssizetypesizetype_tab[(int) stk_ssizetype], rhs); |
| 3525 | /* Don't fold if rhs can't be divided exactly by TYPE_SIZE_UNIT. |
| 3526 | constexpr int A[1]; ... (char *)&A[0] + 1 */ |
| 3527 | if (!integer_zerop (fold_build2_loc (loc, TRUNC_MOD_EXPR, sizetypesizetype_tab[(int) stk_sizetype], |
| 3528 | rhs, TYPE_SIZE_UNIT (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3528, __FUNCTION__))->type_common.size_unit)))) |
| 3529 | return NULL_TREE(tree) __null; |
| 3530 | /* Make sure to treat the second operand of POINTER_PLUS_EXPR |
| 3531 | as signed. */ |
| 3532 | rhs = fold_build2_loc (loc, EXACT_DIV_EXPR, ssizetypesizetype_tab[(int) stk_ssizetype], rhs, |
| 3533 | TYPE_SIZE_UNIT (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3533, __FUNCTION__))->type_common.size_unit)); |
| 3534 | t = size_binop_loc (loc, PLUS_EXPR, rhs, t); |
| 3535 | t = build4_loc (loc, ARRAY_REF, type, TREE_OPERAND (lhs, 0)(*((const_cast<tree*> (tree_operand_check ((lhs), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3535, __FUNCTION__))))), |
| 3536 | t, NULL_TREE(tree) __null, NULL_TREE(tree) __null); |
| 3537 | t = cp_build_addr_expr (t, tf_warning_or_error); |
| 3538 | t = cp_fold_convert (orig_type, t); |
| 3539 | return cxx_eval_constant_expression (ctx, t, vc_prvalue, |
| 3540 | non_constant_p, overflow_p); |
| 3541 | } |
| 3542 | |
| 3543 | return NULL_TREE(tree) __null; |
| 3544 | } |
| 3545 | |
| 3546 | /* Try to fold expressions like |
| 3547 | (struct S *) (&a[0].D.2378 + 12) |
| 3548 | into |
| 3549 | &MEM <struct T> [(void *)&a + 12B] |
| 3550 | This is something normally done by gimple_fold_stmt_to_constant_1 |
| 3551 | on GIMPLE, but is undesirable on GENERIC if we are e.g. going to |
| 3552 | dereference the address because some details are lost. |
| 3553 | For pointer comparisons we want such folding though so that |
| 3554 | match.pd address_compare optimization works. */ |
| 3555 | |
| 3556 | static tree |
| 3557 | cxx_maybe_fold_addr_pointer_plus (tree t) |
| 3558 | { |
| 3559 | while (CONVERT_EXPR_P (t)((((enum tree_code) (t)->base.code)) == NOP_EXPR || (((enum tree_code) (t)->base.code)) == CONVERT_EXPR) |
| 3560 | && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (t, 0)))(((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3560, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3560, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3560, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3560, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )) |
| 3561 | t = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3561, __FUNCTION__))))); |
| 3562 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) != POINTER_PLUS_EXPR) |
| 3563 | return NULL_TREE(tree) __null; |
| 3564 | tree op0 = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3564, __FUNCTION__))))); |
| 3565 | tree op1 = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3565, __FUNCTION__))))); |
| 3566 | if (TREE_CODE (op1)((enum tree_code) (op1)->base.code) != INTEGER_CST) |
| 3567 | return NULL_TREE(tree) __null; |
| 3568 | while (CONVERT_EXPR_P (op0)((((enum tree_code) (op0)->base.code)) == NOP_EXPR || (((enum tree_code) (op0)->base.code)) == CONVERT_EXPR) |
| 3569 | && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (op0, 0)))(((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((op0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3569, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3569, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((op0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3569, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3569, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )) |
| 3570 | op0 = TREE_OPERAND (op0, 0)(*((const_cast<tree*> (tree_operand_check ((op0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3570, __FUNCTION__))))); |
| 3571 | if (TREE_CODE (op0)((enum tree_code) (op0)->base.code) != ADDR_EXPR) |
| 3572 | return NULL_TREE(tree) __null; |
| 3573 | op1 = fold_convert (ptr_type_node, op1)fold_convert_loc (((location_t) 0), global_trees[TI_PTR_TYPE] , op1); |
| 3574 | tree r = fold_build2 (MEM_REF, TREE_TYPE (TREE_TYPE (op0)), op0, op1)fold_build2_loc (((location_t) 0), MEM_REF, ((contains_struct_check ((((contains_struct_check ((op0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3574, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3574, __FUNCTION__))->typed.type), op0, op1 ); |
| 3575 | return build1_loc (EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)), ADDR_EXPR, TREE_TYPE (op0)((contains_struct_check ((op0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3575, __FUNCTION__))->typed.type), r); |
| 3576 | } |
| 3577 | |
| 3578 | /* Subroutine of cxx_eval_constant_expression. |
| 3579 | Like cxx_eval_unary_expression, except for binary expressions. */ |
| 3580 | |
| 3581 | static tree |
| 3582 | cxx_eval_binary_expression (const constexpr_ctx *ctx, tree t, |
| 3583 | value_cat lval, |
| 3584 | bool *non_constant_p, bool *overflow_p) |
| 3585 | { |
| 3586 | tree r = NULL_TREE(tree) __null; |
| 3587 | tree orig_lhs = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3587, __FUNCTION__))))); |
| 3588 | tree orig_rhs = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3588, __FUNCTION__))))); |
| 3589 | tree lhs, rhs; |
| 3590 | lhs = cxx_eval_constant_expression (ctx, orig_lhs, vc_prvalue, |
| 3591 | non_constant_p, overflow_p); |
| 3592 | /* Don't VERIFY_CONSTANT here, it's unnecessary and will break pointer |
| 3593 | subtraction. */ |
| 3594 | if (*non_constant_p) |
| 3595 | return t; |
| 3596 | rhs = cxx_eval_constant_expression (ctx, orig_rhs, vc_prvalue, |
| 3597 | non_constant_p, overflow_p); |
| 3598 | if (*non_constant_p) |
| 3599 | return t; |
| 3600 | |
| 3601 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 3602 | enum tree_code code = TREE_CODE (t)((enum tree_code) (t)->base.code); |
| 3603 | tree type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3603, __FUNCTION__))->typed.type); |
| 3604 | |
| 3605 | if (code == EQ_EXPR || code == NE_EXPR) |
| 3606 | { |
| 3607 | bool is_code_eq = (code == EQ_EXPR); |
| 3608 | |
| 3609 | if (TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == PTRMEM_CST |
| 3610 | && TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == PTRMEM_CST) |
| 3611 | { |
| 3612 | tree lmem = PTRMEM_CST_MEMBER (lhs)(((ptrmem_cst_t)(tree_check ((lhs), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3612, __FUNCTION__, (PTRMEM_CST))))->member); |
| 3613 | tree rmem = PTRMEM_CST_MEMBER (rhs)(((ptrmem_cst_t)(tree_check ((rhs), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3613, __FUNCTION__, (PTRMEM_CST))))->member); |
| 3614 | bool eq; |
| 3615 | if (TREE_CODE (lmem)((enum tree_code) (lmem)->base.code) == TREE_CODE (rmem)((enum tree_code) (rmem)->base.code) |
| 3616 | && TREE_CODE (lmem)((enum tree_code) (lmem)->base.code) == FIELD_DECL |
| 3617 | && TREE_CODE (DECL_CONTEXT (lmem))((enum tree_code) (((contains_struct_check ((lmem), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3617, __FUNCTION__))->decl_minimal.context))->base.code ) == UNION_TYPE |
| 3618 | && same_type_p (DECL_CONTEXT (lmem),comptypes ((((contains_struct_check ((lmem), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3618, __FUNCTION__))->decl_minimal.context)), (((contains_struct_check ((rmem), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3619, __FUNCTION__))->decl_minimal.context)), 0) |
| 3619 | DECL_CONTEXT (rmem))comptypes ((((contains_struct_check ((lmem), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3618, __FUNCTION__))->decl_minimal.context)), (((contains_struct_check ((rmem), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3619, __FUNCTION__))->decl_minimal.context)), 0)) |
| 3620 | /* If both refer to (possibly different) members of the same union |
| 3621 | (12.3), they compare equal. */ |
| 3622 | eq = true; |
| 3623 | else |
| 3624 | eq = cp_tree_equal (lhs, rhs); |
| 3625 | r = constant_boolean_node (eq == is_code_eq, type); |
| 3626 | } |
| 3627 | else if ((TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == PTRMEM_CST |
| 3628 | || TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == PTRMEM_CST) |
| 3629 | && (null_member_pointer_value_p (lhs) |
| 3630 | || null_member_pointer_value_p (rhs))) |
| 3631 | r = constant_boolean_node (!is_code_eq, type); |
| 3632 | else if (TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == PTRMEM_CST) |
| 3633 | lhs = cplus_expand_constant (lhs); |
| 3634 | else if (TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == PTRMEM_CST) |
| 3635 | rhs = cplus_expand_constant (rhs); |
| 3636 | } |
| 3637 | if (r == NULL_TREE(tree) __null |
| 3638 | && TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)] == tcc_comparison |
| 3639 | && POINTER_TYPE_P (TREE_TYPE (lhs))(((enum tree_code) (((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3639, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3639, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )) |
| 3640 | { |
| 3641 | if (tree lhso = cxx_maybe_fold_addr_pointer_plus (lhs)) |
| 3642 | lhs = fold_convert (TREE_TYPE (lhs), lhso)fold_convert_loc (((location_t) 0), ((contains_struct_check ( (lhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3642, __FUNCTION__))->typed.type), lhso); |
| 3643 | if (tree rhso = cxx_maybe_fold_addr_pointer_plus (rhs)) |
| 3644 | rhs = fold_convert (TREE_TYPE (rhs), rhso)fold_convert_loc (((location_t) 0), ((contains_struct_check ( (rhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3644, __FUNCTION__))->typed.type), rhso); |
| 3645 | } |
| 3646 | if (code == POINTER_PLUS_EXPR && !*non_constant_p |
| 3647 | && integer_zerop (lhs) && !integer_zerop (rhs)) |
| 3648 | { |
| 3649 | if (!ctx->quiet) |
| 3650 | error ("arithmetic involving a null pointer in %qE", lhs); |
| 3651 | *non_constant_p = true; |
| 3652 | return t; |
| 3653 | } |
| 3654 | else if (code == POINTER_PLUS_EXPR) |
| 3655 | r = cxx_fold_pointer_plus_expression (ctx, t, lhs, rhs, non_constant_p, |
| 3656 | overflow_p); |
| 3657 | else if (code == SPACESHIP_EXPR) |
| 3658 | { |
| 3659 | r = genericize_spaceship (loc, type, lhs, rhs); |
| 3660 | return cxx_eval_constant_expression (ctx, r, lval, non_constant_p, |
| 3661 | overflow_p); |
| 3662 | } |
| 3663 | |
| 3664 | if (r == NULL_TREE(tree) __null) |
| 3665 | { |
| 3666 | if (ctx->manifestly_const_eval == mce_true |
| 3667 | && (flag_constexpr_fp_exceptglobal_options.x_flag_constexpr_fp_except |
| 3668 | || TREE_CODE (type)((enum tree_code) (type)->base.code) != REAL_TYPE)) |
| 3669 | { |
| 3670 | auto ofcc = make_temp_override (folding_cxx_constexpr, true); |
| 3671 | r = fold_binary_initializer_loc (loc, code, type, lhs, rhs); |
| 3672 | } |
| 3673 | else |
| 3674 | r = fold_binary_loc (loc, code, type, lhs, rhs); |
| 3675 | } |
| 3676 | |
| 3677 | if (r == NULL_TREE(tree) __null |
| 3678 | && (code == LSHIFT_EXPR || code == RSHIFT_EXPR) |
| 3679 | && TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == INTEGER_CST |
| 3680 | && TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == INTEGER_CST |
| 3681 | && wi::neg_p (wi::to_wide (rhs))) |
| 3682 | { |
| 3683 | /* For diagnostics and -fpermissive emulate previous behavior of |
| 3684 | handling shifts by negative amount. */ |
| 3685 | tree nrhs = const_unop (NEGATE_EXPR, TREE_TYPE (rhs)((contains_struct_check ((rhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3685, __FUNCTION__))->typed.type), rhs); |
| 3686 | if (nrhs) |
| 3687 | r = fold_binary_loc (loc, |
| 3688 | code == LSHIFT_EXPR ? RSHIFT_EXPR : LSHIFT_EXPR, |
| 3689 | type, lhs, nrhs); |
| 3690 | } |
| 3691 | |
| 3692 | if (r == NULL_TREE(tree) __null) |
| 3693 | { |
| 3694 | if (lhs == orig_lhs && rhs == orig_rhs) |
| 3695 | r = t; |
| 3696 | else |
| 3697 | r = build2_loc (loc, code, type, lhs, rhs); |
| 3698 | } |
| 3699 | else if (cxx_eval_check_shift_p (loc, ctx, code, type, lhs, rhs)) |
| 3700 | *non_constant_p = true; |
| 3701 | /* Don't VERIFY_CONSTANT if this might be dealing with a pointer to |
| 3702 | a local array in a constexpr function. */ |
| 3703 | bool ptr = INDIRECT_TYPE_P (TREE_TYPE (lhs))((((enum tree_code) (((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3703, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE ) || (((enum tree_code) (((contains_struct_check ((lhs), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3703, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )); |
| 3704 | if (!ptr) |
| 3705 | VERIFY_CONSTANT (r)do { if (verify_constant ((r), ctx->quiet, non_constant_p, overflow_p)) return t; } while (0); |
| 3706 | return r; |
| 3707 | } |
| 3708 | |
| 3709 | /* Subroutine of cxx_eval_constant_expression. |
| 3710 | Attempt to evaluate condition expressions. Dead branches are not |
| 3711 | looked into. */ |
| 3712 | |
| 3713 | static tree |
| 3714 | cxx_eval_conditional_expression (const constexpr_ctx *ctx, tree t, |
| 3715 | value_cat lval, |
| 3716 | bool *non_constant_p, bool *overflow_p, |
| 3717 | tree *jump_target) |
| 3718 | { |
| 3719 | tree val = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3719, __FUNCTION__))))), |
| 3720 | vc_prvalue, |
| 3721 | non_constant_p, overflow_p); |
| 3722 | VERIFY_CONSTANT (val)do { if (verify_constant ((val), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 3723 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == IF_STMT && IF_STMT_CONSTEVAL_P (t)((tree_not_check2 (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3723, __FUNCTION__, (IF_STMT)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3723, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2)) |
| 3724 | { |
| 3725 | /* Evaluate the condition as if it was |
| 3726 | if (__builtin_is_constant_evaluated ()), i.e. defer it if not |
| 3727 | ctx->manifestly_const_eval (as sometimes we try to constant evaluate |
| 3728 | without manifestly_const_eval even expressions or parts thereof which |
| 3729 | will later be manifestly const_eval evaluated), otherwise fold it to |
| 3730 | true. */ |
| 3731 | if (ctx->manifestly_const_eval == mce_unknown) |
| 3732 | { |
| 3733 | *non_constant_p = true; |
| 3734 | return t; |
| 3735 | } |
| 3736 | val = constant_boolean_node (ctx->manifestly_const_eval == mce_true, |
| 3737 | boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE]); |
| 3738 | } |
| 3739 | /* Don't VERIFY_CONSTANT the other operands. */ |
| 3740 | if (integer_zerop (val)) |
| 3741 | val = TREE_OPERAND (t, 2)(*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3741, __FUNCTION__))))); |
| 3742 | else |
| 3743 | val = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3743, __FUNCTION__))))); |
| 3744 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) == IF_STMT && !val) |
| 3745 | val = void_nodeglobal_trees[TI_VOID]; |
| 3746 | /* A TARGET_EXPR may be nested inside another TARGET_EXPR, but still |
| 3747 | serve as the initializer for the same object as the outer TARGET_EXPR, |
| 3748 | as in |
| 3749 | A a = true ? A{} : A{}; |
| 3750 | so strip the inner TARGET_EXPR so we don't materialize a temporary. */ |
| 3751 | if (TREE_CODE (val)((enum tree_code) (val)->base.code) == TARGET_EXPR) |
| 3752 | val = TARGET_EXPR_INITIAL (val)(*(tree_operand_check_code ((val), (TARGET_EXPR), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3752, __FUNCTION__))); |
| 3753 | return cxx_eval_constant_expression (ctx, val, lval, non_constant_p, |
| 3754 | overflow_p, jump_target); |
| 3755 | } |
| 3756 | |
| 3757 | /* Subroutine of cxx_eval_constant_expression. |
| 3758 | Attempt to evaluate vector condition expressions. Unlike |
| 3759 | cxx_eval_conditional_expression, VEC_COND_EXPR acts like a normal |
| 3760 | ternary arithmetics operation, where all 3 arguments have to be |
| 3761 | evaluated as constants and then folding computes the result from |
| 3762 | them. */ |
| 3763 | |
| 3764 | static tree |
| 3765 | cxx_eval_vector_conditional_expression (const constexpr_ctx *ctx, tree t, |
| 3766 | bool *non_constant_p, bool *overflow_p) |
| 3767 | { |
| 3768 | tree arg1 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3768, __FUNCTION__))))), |
| 3769 | vc_prvalue, |
| 3770 | non_constant_p, overflow_p); |
| 3771 | VERIFY_CONSTANT (arg1)do { if (verify_constant ((arg1), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 3772 | tree arg2 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3772, __FUNCTION__))))), |
| 3773 | vc_prvalue, |
| 3774 | non_constant_p, overflow_p); |
| 3775 | VERIFY_CONSTANT (arg2)do { if (verify_constant ((arg2), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 3776 | tree arg3 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 2)(*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3776, __FUNCTION__))))), |
| 3777 | vc_prvalue, |
| 3778 | non_constant_p, overflow_p); |
| 3779 | VERIFY_CONSTANT (arg3)do { if (verify_constant ((arg3), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 3780 | location_t loc = EXPR_LOCATION (t)((((t)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((t))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((t))->base.code))]) <= tcc_expression )) ? (t)->exp.locus : ((location_t) 0)); |
| 3781 | tree type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3781, __FUNCTION__))->typed.type); |
| 3782 | tree r = fold_ternary_loc (loc, VEC_COND_EXPR, type, arg1, arg2, arg3); |
| 3783 | if (r == NULL_TREE(tree) __null) |
| 3784 | { |
| 3785 | if (arg1 == TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3785, __FUNCTION__))))) |
| 3786 | && arg2 == TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3786, __FUNCTION__))))) |
| 3787 | && arg3 == TREE_OPERAND (t, 2)(*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3787, __FUNCTION__)))))) |
| 3788 | r = t; |
| 3789 | else |
| 3790 | r = build3_loc (loc, VEC_COND_EXPR, type, arg1, arg2, arg3); |
| 3791 | } |
| 3792 | VERIFY_CONSTANT (r)do { if (verify_constant ((r), ctx->quiet, non_constant_p, overflow_p)) return t; } while (0); |
| 3793 | return r; |
| 3794 | } |
| 3795 | |
| 3796 | /* Returns less than, equal to, or greater than zero if KEY is found to be |
| 3797 | less than, to match, or to be greater than the constructor_elt's INDEX. */ |
| 3798 | |
| 3799 | static int |
| 3800 | array_index_cmp (tree key, tree index) |
| 3801 | { |
| 3802 | gcc_assert (TREE_CODE (key) == INTEGER_CST)((void)(!(((enum tree_code) (key)->base.code) == INTEGER_CST ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3802, __FUNCTION__), 0 : 0)); |
| 3803 | |
| 3804 | switch (TREE_CODE (index)((enum tree_code) (index)->base.code)) |
| 3805 | { |
| 3806 | case INTEGER_CST: |
| 3807 | return tree_int_cst_compare (key, index); |
| 3808 | case RANGE_EXPR: |
| 3809 | { |
| 3810 | tree lo = TREE_OPERAND (index, 0)(*((const_cast<tree*> (tree_operand_check ((index), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3810, __FUNCTION__))))); |
| 3811 | tree hi = TREE_OPERAND (index, 1)(*((const_cast<tree*> (tree_operand_check ((index), (1) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3811, __FUNCTION__))))); |
| 3812 | if (tree_int_cst_lt (key, lo)) |
| 3813 | return -1; |
| 3814 | else if (tree_int_cst_lt (hi, key)) |
| 3815 | return 1; |
| 3816 | else |
| 3817 | return 0; |
| 3818 | } |
| 3819 | default: |
| 3820 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3820, __FUNCTION__)); |
| 3821 | } |
| 3822 | } |
| 3823 | |
| 3824 | /* Returns the index of the constructor_elt of ARY which matches DINDEX, or -1 |
| 3825 | if none. If INSERT is true, insert a matching element rather than fail. */ |
| 3826 | |
| 3827 | static HOST_WIDE_INTlong |
| 3828 | find_array_ctor_elt (tree ary, tree dindex, bool insert) |
| 3829 | { |
| 3830 | if (tree_int_cst_sgn (dindex) < 0) |
| 3831 | return -1; |
| 3832 | |
| 3833 | unsigned HOST_WIDE_INTlong i = tree_to_uhwi (dindex); |
| 3834 | vec<constructor_elt, va_gc> *elts = CONSTRUCTOR_ELTS (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3834, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 3835 | unsigned HOST_WIDE_INTlong len = vec_safe_length (elts); |
| 3836 | |
| 3837 | unsigned HOST_WIDE_INTlong end = len; |
| 3838 | unsigned HOST_WIDE_INTlong begin = 0; |
| 3839 | |
| 3840 | /* If the last element of the CONSTRUCTOR has its own index, we can assume |
| 3841 | that the same is true of the other elements and index directly. */ |
| 3842 | if (end > 0) |
| 3843 | { |
| 3844 | tree cindex = (*elts)[end - 1].index; |
| 3845 | if (cindex == NULL_TREE(tree) __null) |
| 3846 | { |
| 3847 | /* Verify that if the last index is missing, all indexes |
| 3848 | are missing. */ |
| 3849 | if (flag_checkingglobal_options.x_flag_checking) |
| 3850 | for (unsigned int j = 0; j < len - 1; ++j) |
| 3851 | gcc_assert ((*elts)[j].index == NULL_TREE)((void)(!((*elts)[j].index == (tree) __null) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3851, __FUNCTION__), 0 : 0)); |
| 3852 | if (i < end) |
| 3853 | return i; |
| 3854 | else |
| 3855 | { |
| 3856 | begin = end; |
| 3857 | if (i == end) |
| 3858 | /* If the element is to be added right at the end, |
| 3859 | make sure it is added with cleared index too. */ |
| 3860 | dindex = NULL_TREE(tree) __null; |
| 3861 | else if (insert) |
| 3862 | /* Otherwise, in order not to break the assumption |
| 3863 | that CONSTRUCTOR either has all indexes or none, |
| 3864 | we need to add indexes to all elements. */ |
| 3865 | for (unsigned int j = 0; j < len; ++j) |
| 3866 | (*elts)[j].index = build_int_cst (TREE_TYPE (dindex)((contains_struct_check ((dindex), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3866, __FUNCTION__))->typed.type), j); |
| 3867 | } |
| 3868 | } |
| 3869 | else if (TREE_CODE (cindex)((enum tree_code) (cindex)->base.code) == INTEGER_CST |
| 3870 | && compare_tree_int (cindex, end - 1) == 0) |
| 3871 | { |
| 3872 | if (i < end) |
| 3873 | return i; |
| 3874 | else |
| 3875 | begin = end; |
| 3876 | } |
| 3877 | } |
| 3878 | |
| 3879 | /* Otherwise, find a matching index by means of a binary search. */ |
| 3880 | while (begin != end) |
| 3881 | { |
| 3882 | unsigned HOST_WIDE_INTlong middle = (begin + end) / 2; |
| 3883 | constructor_elt &elt = (*elts)[middle]; |
| 3884 | tree idx = elt.index; |
| 3885 | |
| 3886 | int cmp = array_index_cmp (dindex, idx); |
| 3887 | if (cmp < 0) |
| 3888 | end = middle; |
| 3889 | else if (cmp > 0) |
| 3890 | begin = middle + 1; |
| 3891 | else |
| 3892 | { |
| 3893 | if (insert && TREE_CODE (idx)((enum tree_code) (idx)->base.code) == RANGE_EXPR) |
| 3894 | { |
| 3895 | /* We need to split the range. */ |
| 3896 | constructor_elt e; |
| 3897 | tree lo = TREE_OPERAND (idx, 0)(*((const_cast<tree*> (tree_operand_check ((idx), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3897, __FUNCTION__))))); |
| 3898 | tree hi = TREE_OPERAND (idx, 1)(*((const_cast<tree*> (tree_operand_check ((idx), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3898, __FUNCTION__))))); |
| 3899 | tree value = elt.value; |
| 3900 | dindex = fold_convert (sizetype, dindex)fold_convert_loc (((location_t) 0), sizetype_tab[(int) stk_sizetype ], dindex); |
| 3901 | if (tree_int_cst_lt (lo, dindex)) |
| 3902 | { |
| 3903 | /* There are still some lower elts; shorten the range. */ |
| 3904 | tree new_hi = int_const_binop (MINUS_EXPR, dindex, |
| 3905 | size_one_nodeglobal_trees[TI_SIZE_ONE]); |
| 3906 | if (tree_int_cst_equal (lo, new_hi)) |
| 3907 | /* Only one element left, no longer a range. */ |
| 3908 | elt.index = lo; |
| 3909 | else |
| 3910 | TREE_OPERAND (idx, 1)(*((const_cast<tree*> (tree_operand_check ((idx), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3910, __FUNCTION__))))) = new_hi; |
| 3911 | /* Append the element we want to insert. */ |
| 3912 | ++middle; |
| 3913 | e.index = dindex; |
| 3914 | e.value = unshare_constructor (value); |
| 3915 | vec_safe_insert (CONSTRUCTOR_ELTS (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3915, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), middle, e); |
| 3916 | } |
| 3917 | else |
| 3918 | /* No lower elts, the range elt is now ours. */ |
| 3919 | elt.index = dindex; |
| 3920 | |
| 3921 | if (tree_int_cst_lt (dindex, hi)) |
| 3922 | { |
| 3923 | /* There are still some higher elts; append a range. */ |
| 3924 | tree new_lo = int_const_binop (PLUS_EXPR, dindex, |
| 3925 | size_one_nodeglobal_trees[TI_SIZE_ONE]); |
| 3926 | if (tree_int_cst_equal (new_lo, hi)) |
| 3927 | e.index = hi; |
| 3928 | else |
| 3929 | e.index = build2 (RANGE_EXPR, sizetypesizetype_tab[(int) stk_sizetype], new_lo, hi); |
| 3930 | e.value = unshare_constructor (value); |
| 3931 | vec_safe_insert (CONSTRUCTOR_ELTS (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3931, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), middle + 1, e); |
| 3932 | } |
| 3933 | } |
| 3934 | return middle; |
| 3935 | } |
| 3936 | } |
| 3937 | |
| 3938 | if (insert) |
| 3939 | { |
| 3940 | constructor_elt e = { dindex, NULL_TREE(tree) __null }; |
| 3941 | vec_safe_insert (CONSTRUCTOR_ELTS (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3941, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), end, e); |
| 3942 | return end; |
| 3943 | } |
| 3944 | |
| 3945 | return -1; |
| 3946 | } |
| 3947 | |
| 3948 | /* Return a pointer to the constructor_elt of CTOR which matches INDEX. If no |
| 3949 | matching constructor_elt exists, then add one to CTOR. |
| 3950 | |
| 3951 | As an optimization, if POS_HINT is non-negative then it is used as a guess |
| 3952 | for the (integer) index of the matching constructor_elt within CTOR. */ |
| 3953 | |
| 3954 | static constructor_elt * |
| 3955 | get_or_insert_ctor_field (tree ctor, tree index, int pos_hint = -1) |
| 3956 | { |
| 3957 | /* Check the hint first. */ |
| 3958 | if (pos_hint >= 0 && (unsigned)pos_hint < CONSTRUCTOR_NELTS (ctor)(vec_safe_length (((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3958, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) |
| 3959 | && CONSTRUCTOR_ELT (ctor, pos_hint)(&(*((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3959, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ pos_hint])->index == index) |
| 3960 | return CONSTRUCTOR_ELT (ctor, pos_hint)(&(*((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3960, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ pos_hint]); |
| 3961 | |
| 3962 | tree type = TREE_TYPE (ctor)((contains_struct_check ((ctor), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3962, __FUNCTION__))->typed.type); |
| 3963 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == VECTOR_TYPE && index == NULL_TREE(tree) __null) |
| 3964 | { |
| 3965 | CONSTRUCTOR_APPEND_ELT (CONSTRUCTOR_ELTS (ctor), index, NULL_TREE)do { constructor_elt _ce___ = {index, (tree) __null}; vec_safe_push ((((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3965, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)), _ce___); } while (0); |
| 3966 | return &CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3966, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts)->last(); |
| 3967 | } |
| 3968 | else if (TREE_CODE (type)((enum tree_code) (type)->base.code) == ARRAY_TYPE || TREE_CODE (type)((enum tree_code) (type)->base.code) == VECTOR_TYPE) |
| 3969 | { |
| 3970 | if (TREE_CODE (index)((enum tree_code) (index)->base.code) == RANGE_EXPR) |
| 3971 | { |
| 3972 | /* Support for RANGE_EXPR index lookups is currently limited to |
| 3973 | accessing an existing element via POS_HINT, or appending a new |
| 3974 | element to the end of CTOR. ??? Support for other access |
| 3975 | patterns may also be needed. */ |
| 3976 | vec<constructor_elt, va_gc> *elts = CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3976, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 3977 | if (vec_safe_length (elts)) |
| 3978 | { |
| 3979 | tree lo = TREE_OPERAND (index, 0)(*((const_cast<tree*> (tree_operand_check ((index), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3979, __FUNCTION__))))); |
| 3980 | gcc_assert (array_index_cmp (elts->last().index, lo) < 0)((void)(!(array_index_cmp (elts->last().index, lo) < 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3980, __FUNCTION__), 0 : 0)); |
| 3981 | } |
| 3982 | CONSTRUCTOR_APPEND_ELT (elts, index, NULL_TREE)do { constructor_elt _ce___ = {index, (tree) __null}; vec_safe_push ((elts), _ce___); } while (0); |
| 3983 | return &elts->last(); |
| 3984 | } |
| 3985 | |
| 3986 | HOST_WIDE_INTlong i = find_array_ctor_elt (ctor, index, /*insert*/true); |
| 3987 | gcc_assert (i >= 0)((void)(!(i >= 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3987, __FUNCTION__), 0 : 0)); |
| 3988 | constructor_elt *cep = CONSTRUCTOR_ELT (ctor, i)(&(*((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3988, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i]); |
| 3989 | gcc_assert (cep->index == NULL_TREE((void)(!(cep->index == (tree) __null || ((enum tree_code) (cep->index)->base.code) != RANGE_EXPR) ? fancy_abort ( "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3990, __FUNCTION__), 0 : 0)) |
| 3990 | || TREE_CODE (cep->index) != RANGE_EXPR)((void)(!(cep->index == (tree) __null || ((enum tree_code) (cep->index)->base.code) != RANGE_EXPR) ? fancy_abort ( "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3990, __FUNCTION__), 0 : 0)); |
| 3991 | return cep; |
| 3992 | } |
| 3993 | else |
| 3994 | { |
| 3995 | gcc_assert (TREE_CODE (index) == FIELD_DECL((void)(!(((enum tree_code) (index)->base.code) == FIELD_DECL && (same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((index), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->decl_minimal.context), ((contains_struct_check ((ctor), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->typed.type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__), 0 : 0)) |
| 3996 | && (same_type_ignoring_top_level_qualifiers_p((void)(!(((enum tree_code) (index)->base.code) == FIELD_DECL && (same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((index), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->decl_minimal.context), ((contains_struct_check ((ctor), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->typed.type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__), 0 : 0)) |
| 3997 | (DECL_CONTEXT (index), TREE_TYPE (ctor))))((void)(!(((enum tree_code) (index)->base.code) == FIELD_DECL && (same_type_ignoring_top_level_qualifiers_p (((contains_struct_check ((index), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->decl_minimal.context), ((contains_struct_check ((ctor), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__))->typed.type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 3997, __FUNCTION__), 0 : 0)); |
| 3998 | |
| 3999 | /* We must keep the CONSTRUCTOR's ELTS in FIELD order. |
| 4000 | Usually we meet initializers in that order, but it is |
| 4001 | possible for base types to be placed not in program |
| 4002 | order. */ |
| 4003 | tree fields = TYPE_FIELDS (DECL_CONTEXT (index))((tree_check3 ((((contains_struct_check ((index), (TS_DECL_MINIMAL ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4003, __FUNCTION__))->decl_minimal.context)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4003, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); |
| 4004 | unsigned HOST_WIDE_INTlong idx = 0; |
| 4005 | constructor_elt *cep = NULL__null; |
| 4006 | |
| 4007 | /* Check if we're changing the active member of a union. */ |
| 4008 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == UNION_TYPE && CONSTRUCTOR_NELTS (ctor)(vec_safe_length (((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4008, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) |
| 4009 | && CONSTRUCTOR_ELT (ctor, 0)(&(*((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4009, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ 0])->index != index) |
| 4010 | vec_safe_truncate (CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4010, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), 0); |
| 4011 | /* If the bit offset of INDEX is larger than that of the last |
| 4012 | constructor_elt, then we can just immediately append a new |
| 4013 | constructor_elt to the end of CTOR. */ |
| 4014 | else if (CONSTRUCTOR_NELTS (ctor)(vec_safe_length (((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4014, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) |
| 4015 | && tree_int_cst_compare (bit_position (index), |
| 4016 | bit_position (CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4016, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts) |
| 4017 | ->last().index)) > 0) |
| 4018 | { |
| 4019 | idx = CONSTRUCTOR_NELTS (ctor)(vec_safe_length (((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4019, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))); |
| 4020 | goto insert; |
| 4021 | } |
| 4022 | |
| 4023 | /* Otherwise, we need to iterate over CTOR to find or insert INDEX |
| 4024 | appropriately. */ |
| 4025 | |
| 4026 | for (; vec_safe_iterate (CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4026, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), idx, &cep); |
| 4027 | idx++, fields = DECL_CHAIN (fields)(((contains_struct_check (((contains_struct_check ((fields), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4027, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4027, __FUNCTION__))->common.chain))) |
| 4028 | { |
| 4029 | if (index == cep->index) |
| 4030 | goto found; |
| 4031 | |
| 4032 | /* The field we're initializing must be on the field |
| 4033 | list. Look to see if it is present before the |
| 4034 | field the current ELT initializes. */ |
| 4035 | for (; fields != cep->index; fields = DECL_CHAIN (fields)(((contains_struct_check (((contains_struct_check ((fields), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4035, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4035, __FUNCTION__))->common.chain))) |
| 4036 | if (index == fields) |
| 4037 | goto insert; |
| 4038 | } |
| 4039 | /* We fell off the end of the CONSTRUCTOR, so insert a new |
| 4040 | entry at the end. */ |
| 4041 | |
| 4042 | insert: |
| 4043 | { |
| 4044 | constructor_elt ce = { index, NULL_TREE(tree) __null }; |
| 4045 | |
| 4046 | vec_safe_insert (CONSTRUCTOR_ELTS (ctor)((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4046, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts), idx, ce); |
| 4047 | cep = CONSTRUCTOR_ELT (ctor, idx)(&(*((tree_check ((ctor), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4047, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ idx]); |
| 4048 | } |
| 4049 | found:; |
| 4050 | |
| 4051 | return cep; |
| 4052 | } |
| 4053 | } |
| 4054 | |
| 4055 | /* Under the control of CTX, issue a detailed diagnostic for |
| 4056 | an out-of-bounds subscript INDEX into the expression ARRAY. */ |
| 4057 | |
| 4058 | static void |
| 4059 | diag_array_subscript (location_t loc, const constexpr_ctx *ctx, tree array, tree index) |
| 4060 | { |
| 4061 | if (!ctx->quiet) |
| 4062 | { |
| 4063 | tree arraytype = TREE_TYPE (array)((contains_struct_check ((array), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4063, __FUNCTION__))->typed.type); |
| 4064 | |
| 4065 | /* Convert the unsigned array subscript to a signed integer to avoid |
| 4066 | printing huge numbers for small negative values. */ |
| 4067 | tree sidx = fold_convert (ssizetype, index)fold_convert_loc (((location_t) 0), sizetype_tab[(int) stk_ssizetype ], index); |
| 4068 | STRIP_ANY_LOCATION_WRAPPER (array)(array) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((array))))); |
| 4069 | if (DECL_P (array)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (array)->base.code))] == tcc_declaration)) |
| 4070 | { |
| 4071 | if (TYPE_DOMAIN (arraytype)((tree_check ((arraytype), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4071, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )) |
| 4072 | error_at (loc, "array subscript value %qE is outside the bounds " |
| 4073 | "of array %qD of type %qT", sidx, array, arraytype); |
| 4074 | else |
| 4075 | error_at (loc, "nonzero array subscript %qE is used with array %qD of " |
| 4076 | "type %qT with unknown bounds", sidx, array, arraytype); |
| 4077 | inform (DECL_SOURCE_LOCATION (array)((contains_struct_check ((array), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4077, __FUNCTION__))->decl_minimal.locus), "declared here"); |
| 4078 | } |
| 4079 | else if (TYPE_DOMAIN (arraytype)((tree_check ((arraytype), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4079, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )) |
| 4080 | error_at (loc, "array subscript value %qE is outside the bounds " |
| 4081 | "of array type %qT", sidx, arraytype); |
| 4082 | else |
| 4083 | error_at (loc, "nonzero array subscript %qE is used with array of type %qT " |
| 4084 | "with unknown bounds", sidx, arraytype); |
| 4085 | } |
| 4086 | } |
| 4087 | |
| 4088 | /* Return the number of elements for TYPE (which is an ARRAY_TYPE or |
| 4089 | a VECTOR_TYPE). */ |
| 4090 | |
| 4091 | static tree |
| 4092 | get_array_or_vector_nelts (const constexpr_ctx *ctx, tree type, |
| 4093 | bool *non_constant_p, bool *overflow_p) |
| 4094 | { |
| 4095 | tree nelts; |
| 4096 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == ARRAY_TYPE) |
| 4097 | { |
| 4098 | if (TYPE_DOMAIN (type)((tree_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4098, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )) |
| 4099 | nelts = array_type_nelts_top (type); |
| 4100 | else |
| 4101 | nelts = size_zero_nodeglobal_trees[TI_SIZE_ZERO]; |
| 4102 | } |
| 4103 | else if (VECTOR_TYPE_P (type)(((enum tree_code) (type)->base.code) == VECTOR_TYPE)) |
| 4104 | nelts = size_int (TYPE_VECTOR_SUBPARTS (type))size_int_kind (TYPE_VECTOR_SUBPARTS (type), stk_sizetype); |
| 4105 | else |
| 4106 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4106, __FUNCTION__)); |
| 4107 | |
| 4108 | /* For VLAs, the number of elements won't be an integer constant. */ |
| 4109 | nelts = cxx_eval_constant_expression (ctx, nelts, vc_prvalue, |
| 4110 | non_constant_p, overflow_p); |
| 4111 | return nelts; |
| 4112 | } |
| 4113 | |
| 4114 | /* Extract element INDEX consisting of CHARS_PER_ELT chars from |
| 4115 | STRING_CST STRING. */ |
| 4116 | |
| 4117 | static tree |
| 4118 | extract_string_elt (tree string, unsigned chars_per_elt, unsigned index) |
| 4119 | { |
| 4120 | tree type = cv_unqualified (TREE_TYPE (TREE_TYPE (string))((contains_struct_check ((((contains_struct_check ((string), ( TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4120, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4120, __FUNCTION__))->typed.type)); |
| 4121 | tree r; |
| 4122 | |
| 4123 | if (chars_per_elt == 1) |
| 4124 | r = build_int_cst (type, TREE_STRING_POINTER (string)((const char *)((tree_check ((string), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4124, __FUNCTION__, (STRING_CST)))->string.str))[index]); |
| 4125 | else |
| 4126 | { |
| 4127 | const unsigned char *ptr |
| 4128 | = ((const unsigned char *)TREE_STRING_POINTER (string)((const char *)((tree_check ((string), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4128, __FUNCTION__, (STRING_CST)))->string.str)) |
| 4129 | + index * chars_per_elt); |
| 4130 | r = native_interpret_expr (type, ptr, chars_per_elt); |
| 4131 | } |
| 4132 | return r; |
| 4133 | } |
| 4134 | |
| 4135 | /* Subroutine of cxx_eval_array_reference. T is an ARRAY_REF; evaluate the |
| 4136 | subscript, diagnose any problems with it, and return the result. */ |
| 4137 | |
| 4138 | static tree |
| 4139 | eval_and_check_array_index (const constexpr_ctx *ctx, |
| 4140 | tree t, bool allow_one_past, |
| 4141 | bool *non_constant_p, bool *overflow_p) |
| 4142 | { |
| 4143 | location_t loc = cp_expr_loc_or_input_loc (t); |
| 4144 | tree ary = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4144, __FUNCTION__))))); |
| 4145 | t = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4145, __FUNCTION__))))); |
| 4146 | tree index = cxx_eval_constant_expression (ctx, t, vc_prvalue, |
| 4147 | non_constant_p, overflow_p); |
| 4148 | VERIFY_CONSTANT (index)do { if (verify_constant ((index), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 4149 | |
| 4150 | if (!tree_fits_shwi_p (index) |
| 4151 | || tree_int_cst_sgn (index) < 0) |
| 4152 | { |
| 4153 | diag_array_subscript (loc, ctx, ary, index); |
| 4154 | *non_constant_p = true; |
| 4155 | return t; |
| 4156 | } |
| 4157 | |
| 4158 | tree nelts = get_array_or_vector_nelts (ctx, TREE_TYPE (ary)((contains_struct_check ((ary), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4158, __FUNCTION__))->typed.type), non_constant_p, |
| 4159 | overflow_p); |
| 4160 | VERIFY_CONSTANT (nelts)do { if (verify_constant ((nelts), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 4161 | if (allow_one_past |
| 4162 | ? !tree_int_cst_le (index, nelts) |
| 4163 | : !tree_int_cst_lt (index, nelts)) |
| 4164 | { |
| 4165 | diag_array_subscript (loc, ctx, ary, index); |
| 4166 | *non_constant_p = true; |
| 4167 | return t; |
| 4168 | } |
| 4169 | |
| 4170 | return index; |
| 4171 | } |
| 4172 | |
| 4173 | /* Subroutine of cxx_eval_constant_expression. |
| 4174 | Attempt to reduce a reference to an array slot. */ |
| 4175 | |
| 4176 | static tree |
| 4177 | cxx_eval_array_reference (const constexpr_ctx *ctx, tree t, |
| 4178 | value_cat lval, |
| 4179 | bool *non_constant_p, bool *overflow_p) |
| 4180 | { |
| 4181 | tree oldary = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4181, __FUNCTION__))))); |
| 4182 | tree ary = cxx_eval_constant_expression (ctx, oldary, |
| 4183 | lval, |
| 4184 | non_constant_p, overflow_p); |
| 4185 | if (*non_constant_p) |
| 4186 | return t; |
| 4187 | if (!lval |
| 4188 | && TREE_CODE (ary)((enum tree_code) (ary)->base.code) == VIEW_CONVERT_EXPR |
| 4189 | && VECTOR_TYPE_P (TREE_TYPE (TREE_OPERAND (ary, 0)))(((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((ary), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4189, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4189, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE ) |
| 4190 | && TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4190, __FUNCTION__))->typed.type) == TREE_TYPE (TREE_TYPE (TREE_OPERAND (ary, 0)))((contains_struct_check ((((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((ary), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4190, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4190, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4190, __FUNCTION__))->typed.type)) |
| 4191 | ary = TREE_OPERAND (ary, 0)(*((const_cast<tree*> (tree_operand_check ((ary), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4191, __FUNCTION__))))); |
| 4192 | |
| 4193 | tree oldidx = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4193, __FUNCTION__))))); |
| 4194 | tree index = eval_and_check_array_index (ctx, t, lval, |
| 4195 | non_constant_p, overflow_p); |
| 4196 | if (*non_constant_p) |
| 4197 | return t; |
| 4198 | |
| 4199 | if (lval && ary == oldary && index == oldidx) |
| 4200 | return t; |
| 4201 | else if (lval == vc_discard) |
| 4202 | return t; |
| 4203 | else if (lval) |
| 4204 | return build4 (ARRAY_REF, TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4204, __FUNCTION__))->typed.type), ary, index, NULL__null, NULL__null); |
| 4205 | |
| 4206 | unsigned len = 0, elem_nchars = 1; |
| 4207 | tree elem_type = TREE_TYPE (TREE_TYPE (ary))((contains_struct_check ((((contains_struct_check ((ary), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4207, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4207, __FUNCTION__))->typed.type); |
| 4208 | if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == CONSTRUCTOR) |
| 4209 | len = CONSTRUCTOR_NELTS (ary)(vec_safe_length (((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4209, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))); |
| 4210 | else if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == STRING_CST) |
| 4211 | { |
| 4212 | elem_nchars = (TYPE_PRECISION (elem_type)((tree_class_check ((elem_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4212, __FUNCTION__))->type_common.precision) |
| 4213 | / TYPE_PRECISION (char_type_node)((tree_class_check ((integer_types[itk_char]), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4213, __FUNCTION__))->type_common.precision)); |
| 4214 | len = (unsigned) TREE_STRING_LENGTH (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4214, __FUNCTION__, (STRING_CST)))->string.length) / elem_nchars; |
| 4215 | } |
| 4216 | else if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == VECTOR_CST) |
| 4217 | /* We don't create variable-length VECTOR_CSTs. */ |
| 4218 | len = VECTOR_CST_NELTS (ary)(TYPE_VECTOR_SUBPARTS (((contains_struct_check ((ary), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4218, __FUNCTION__))->typed.type))).to_constant (); |
| 4219 | else |
| 4220 | { |
| 4221 | /* We can't do anything with other tree codes, so use |
| 4222 | VERIFY_CONSTANT to complain and fail. */ |
| 4223 | VERIFY_CONSTANT (ary)do { if (verify_constant ((ary), ctx->quiet, non_constant_p , overflow_p)) return t; } while (0); |
| 4224 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4224, __FUNCTION__)); |
| 4225 | } |
| 4226 | |
| 4227 | bool found; |
| 4228 | HOST_WIDE_INTlong i = 0; |
| 4229 | if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == CONSTRUCTOR) |
| 4230 | { |
| 4231 | HOST_WIDE_INTlong ix = find_array_ctor_elt (ary, index); |
| 4232 | found = (ix >= 0); |
| 4233 | if (found) |
| 4234 | i = ix; |
| 4235 | } |
| 4236 | else |
| 4237 | { |
| 4238 | i = tree_to_shwi (index); |
| 4239 | found = (i < len); |
| 4240 | } |
| 4241 | |
| 4242 | if (found) |
| 4243 | { |
| 4244 | tree r; |
| 4245 | if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == CONSTRUCTOR) |
| 4246 | r = (*CONSTRUCTOR_ELTS (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4246, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[i].value; |
| 4247 | else if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == VECTOR_CST) |
| 4248 | r = VECTOR_CST_ELT (ary, i)vector_cst_elt (ary, i); |
| 4249 | else |
| 4250 | r = extract_string_elt (ary, elem_nchars, i); |
| 4251 | |
| 4252 | if (r) |
| 4253 | /* Don't VERIFY_CONSTANT here. */ |
| 4254 | return r; |
| 4255 | |
| 4256 | /* Otherwise the element doesn't have a value yet. */ |
| 4257 | } |
| 4258 | |
| 4259 | /* Not found. */ |
| 4260 | |
| 4261 | if (TREE_CODE (ary)((enum tree_code) (ary)->base.code) == CONSTRUCTOR |
| 4262 | && CONSTRUCTOR_NO_CLEARING (ary)((tree_check ((ary), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4262, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 4263 | { |
| 4264 | /* 'ary' is part of the aggregate initializer we're currently |
| 4265 | building; if there's no initializer for this element yet, |
| 4266 | that's an error. */ |
| 4267 | if (!ctx->quiet) |
| 4268 | error ("accessing uninitialized array element"); |
| 4269 | *non_constant_p = true; |
| 4270 | return t; |
| 4271 | } |
| 4272 | |
| 4273 | /* If it's within the array bounds but doesn't have an explicit |
| 4274 | initializer, it's initialized from {}. But use build_value_init |
| 4275 | directly for non-aggregates to avoid creating a garbage CONSTRUCTOR. */ |
| 4276 | tree val; |
| 4277 | constexpr_ctx new_ctx; |
| 4278 | if (is_really_empty_class (elem_type, /*ignore_vptr*/false)) |
| 4279 | return build_constructor (elem_type, NULL__null); |
| 4280 | else if (CP_AGGREGATE_TYPE_P (elem_type)(gnu_vector_type_p (elem_type) || ((enum tree_code) (elem_type )->base.code) == ARRAY_TYPE || ((((((enum tree_code) (elem_type )->base.code)) == RECORD_TYPE || (((enum tree_code) (elem_type )->base.code)) == UNION_TYPE) && ((tree_class_check ((elem_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4280, __FUNCTION__))->type_common.lang_flag_5)) && (((tree_class_check ((elem_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4280, __FUNCTION__))->type_common.size) != (tree) __null ) && !((((tree_class_check ((elem_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4280, __FUNCTION__))->type_with_lang_specific.lang_specific ))->non_aggregate)))) |
| 4281 | { |
| 4282 | tree empty_ctor = build_constructor (init_list_type_nodecp_global_trees[CPTI_INIT_LIST_TYPE], NULL__null); |
| 4283 | val = digest_init (elem_type, empty_ctor, tf_warning_or_error); |
| 4284 | } |
| 4285 | else |
| 4286 | val = build_value_init (elem_type, tf_warning_or_error); |
| 4287 | |
| 4288 | if (!SCALAR_TYPE_P (elem_type)((((enum tree_code) (elem_type)->base.code) == OFFSET_TYPE ) || ((enum tree_code) (elem_type)->base.code) == ENUMERAL_TYPE || ((((enum tree_code) (elem_type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (elem_type)->base.code) == INTEGER_TYPE ) || ((enum tree_code) (elem_type)->base.code) == REAL_TYPE || ((enum tree_code) (elem_type)->base.code) == COMPLEX_TYPE ) || (((enum tree_code) (elem_type)->base.code) == POINTER_TYPE ) || (((enum tree_code) (elem_type)->base.code) == RECORD_TYPE && (((tree_class_check (((tree_check ((elem_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4288, __FUNCTION__, (RECORD_TYPE)))), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4288, __FUNCTION__))->type_common.lang_flag_2))) || (((enum tree_code) (elem_type)->base.code) == NULLPTR_TYPE))) |
| 4289 | { |
| 4290 | new_ctx = *ctx; |
| 4291 | new_ctx.ctor = build_constructor (elem_type, NULL__null); |
| 4292 | ctx = &new_ctx; |
| 4293 | } |
| 4294 | t = cxx_eval_constant_expression (ctx, val, lval, non_constant_p, |
| 4295 | overflow_p); |
| 4296 | if (!SCALAR_TYPE_P (elem_type)((((enum tree_code) (elem_type)->base.code) == OFFSET_TYPE ) || ((enum tree_code) (elem_type)->base.code) == ENUMERAL_TYPE || ((((enum tree_code) (elem_type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (elem_type)->base.code) == INTEGER_TYPE ) || ((enum tree_code) (elem_type)->base.code) == REAL_TYPE || ((enum tree_code) (elem_type)->base.code) == COMPLEX_TYPE ) || (((enum tree_code) (elem_type)->base.code) == POINTER_TYPE ) || (((enum tree_code) (elem_type)->base.code) == RECORD_TYPE && (((tree_class_check (((tree_check ((elem_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4296, __FUNCTION__, (RECORD_TYPE)))), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4296, __FUNCTION__))->type_common.lang_flag_2))) || (((enum tree_code) (elem_type)->base.code) == NULLPTR_TYPE)) && t != ctx->ctor) |
| 4297 | free_constructor (ctx->ctor); |
| 4298 | return t; |
| 4299 | } |
| 4300 | |
| 4301 | /* Subroutine of cxx_eval_constant_expression. |
| 4302 | Attempt to reduce a field access of a value of class type. */ |
| 4303 | |
| 4304 | static tree |
| 4305 | cxx_eval_component_reference (const constexpr_ctx *ctx, tree t, |
| 4306 | value_cat lval, |
| 4307 | bool *non_constant_p, bool *overflow_p) |
| 4308 | { |
| 4309 | unsigned HOST_WIDE_INTlong i; |
| 4310 | tree field; |
| 4311 | tree value; |
| 4312 | tree part = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4312, __FUNCTION__))))); |
| 4313 | tree orig_whole = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4313, __FUNCTION__))))); |
| 4314 | tree whole = cxx_eval_constant_expression (ctx, orig_whole, |
| 4315 | lval, |
| 4316 | non_constant_p, overflow_p); |
| 4317 | if (*non_constant_p) |
| 4318 | return t; |
| 4319 | if (INDIRECT_REF_P (whole)(((enum tree_code) (whole)->base.code) == INDIRECT_REF) |
| 4320 | && integer_zerop (TREE_OPERAND (whole, 0)(*((const_cast<tree*> (tree_operand_check ((whole), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4320, __FUNCTION__))))))) |
| 4321 | { |
| 4322 | if (!ctx->quiet) |
| 4323 | error ("dereferencing a null pointer in %qE", orig_whole); |
| 4324 | *non_constant_p = true; |
| 4325 | return t; |
| 4326 | } |
| 4327 | |
| 4328 | if (TREE_CODE (whole)((enum tree_code) (whole)->base.code) == PTRMEM_CST) |
| 4329 | whole = cplus_expand_constant (whole); |
| 4330 | if (whole == orig_whole) |
| 4331 | return t; |
| 4332 | if (lval == vc_discard) |
| 4333 | return t; |
| 4334 | if (lval) |
| 4335 | return fold_build3 (COMPONENT_REF, TREE_TYPE (t),fold_build3_loc (((location_t) 0), COMPONENT_REF, ((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4335, __FUNCTION__))->typed.type), whole, part, (tree) __null ) |
| 4336 | whole, part, NULL_TREE)fold_build3_loc (((location_t) 0), COMPONENT_REF, ((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4335, __FUNCTION__))->typed.type), whole, part, (tree) __null ); |
| 4337 | /* Don't VERIFY_CONSTANT here; we only want to check that we got a |
| 4338 | CONSTRUCTOR. */ |
| 4339 | if (TREE_CODE (whole)((enum tree_code) (whole)->base.code) != CONSTRUCTOR) |
| 4340 | { |
| 4341 | if (!ctx->quiet) |
| 4342 | error ("%qE is not a constant expression", orig_whole); |
| 4343 | *non_constant_p = true; |
| 4344 | return t; |
| 4345 | } |
| 4346 | if ((cxx_dialect < cxx14 || CONSTRUCTOR_MUTABLE_POISON (whole)(((tree_not_check2 (((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4346, __FUNCTION__, (CONSTRUCTOR)))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4346, __FUNCTION__, (TREE_VEC), (SSA_NAME)))->base.u.bits .lang_flag_2))) |
| 4347 | && DECL_MUTABLE_P (part)(((contains_struct_check (((tree_check ((part), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4347, __FUNCTION__, (FIELD_DECL)))), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4347, __FUNCTION__))->decl_common.lang_flag_0))) |
| 4348 | { |
| 4349 | if (!ctx->quiet) |
| 4350 | error ("mutable %qD is not usable in a constant expression", part); |
| 4351 | *non_constant_p = true; |
| 4352 | return t; |
| 4353 | } |
| 4354 | bool pmf = TYPE_PTRMEMFUNC_P (TREE_TYPE (whole))(((enum tree_code) (((contains_struct_check ((whole), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4354, __FUNCTION__))->typed.type))->base.code) == RECORD_TYPE && (((tree_class_check (((tree_check ((((contains_struct_check ((whole), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4354, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4354, __FUNCTION__, (RECORD_TYPE)))), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4354, __FUNCTION__))->type_common.lang_flag_2))); |
| 4355 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (whole), i, field, value)for (i = 0; (i >= vec_safe_length (((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4355, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) ? false : (((void) (value = (*((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4355, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].value)), (field = (*((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4355, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].index), true); (i)++) |
| 4356 | { |
| 4357 | /* Use name match for PMF fields, as a variant will have a |
| 4358 | different FIELD_DECL with a different type. */ |
| 4359 | if (pmf ? DECL_NAME (field)((contains_struct_check ((field), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4359, __FUNCTION__))->decl_minimal.name) == DECL_NAME (part)((contains_struct_check ((part), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4359, __FUNCTION__))->decl_minimal.name) |
| 4360 | : field == part) |
| 4361 | { |
| 4362 | if (value) |
| 4363 | { |
| 4364 | STRIP_ANY_LOCATION_WRAPPER (value)(value) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((value))))); |
| 4365 | return value; |
| 4366 | } |
| 4367 | else |
| 4368 | /* We're in the middle of initializing it. */ |
| 4369 | break; |
| 4370 | } |
| 4371 | } |
| 4372 | if (TREE_CODE (TREE_TYPE (whole))((enum tree_code) (((contains_struct_check ((whole), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4372, __FUNCTION__))->typed.type))->base.code) == UNION_TYPE |
| 4373 | && CONSTRUCTOR_NELTS (whole)(vec_safe_length (((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4373, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) > 0) |
| 4374 | { |
| 4375 | /* DR 1188 says we don't have to deal with this. */ |
| 4376 | if (!ctx->quiet) |
| 4377 | { |
| 4378 | constructor_elt *cep = CONSTRUCTOR_ELT (whole, 0)(&(*((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4378, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ 0]); |
| 4379 | if (cep->value == NULL_TREE(tree) __null) |
| 4380 | error ("accessing uninitialized member %qD", part); |
| 4381 | else |
| 4382 | error ("accessing %qD member instead of initialized %qD member in " |
| 4383 | "constant expression", part, cep->index); |
| 4384 | } |
| 4385 | *non_constant_p = true; |
| 4386 | return t; |
| 4387 | } |
| 4388 | |
| 4389 | /* We only create a CONSTRUCTOR for a subobject when we modify it, so empty |
| 4390 | classes never get represented; throw together a value now. */ |
| 4391 | if (is_really_empty_class (TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4391, __FUNCTION__))->typed.type), /*ignore_vptr*/false)) |
| 4392 | return build_constructor (TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4392, __FUNCTION__))->typed.type), NULL__null); |
| 4393 | |
| 4394 | gcc_assert (DECL_CONTEXT (part) == TYPE_MAIN_VARIANT (TREE_TYPE (whole)))((void)(!(((contains_struct_check ((part), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4394, __FUNCTION__))->decl_minimal.context) == ((tree_class_check ((((contains_struct_check ((whole), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4394, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4394, __FUNCTION__))->type_common.main_variant)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4394, __FUNCTION__), 0 : 0)); |
| 4395 | |
| 4396 | if (CONSTRUCTOR_NO_CLEARING (whole)((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4396, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 4397 | { |
| 4398 | /* 'whole' is part of the aggregate initializer we're currently |
| 4399 | building; if there's no initializer for this member yet, that's an |
| 4400 | error. */ |
| 4401 | if (!ctx->quiet) |
| 4402 | error ("accessing uninitialized member %qD", part); |
| 4403 | *non_constant_p = true; |
| 4404 | return t; |
| 4405 | } |
| 4406 | |
| 4407 | /* If there's no explicit init for this field, it's value-initialized. */ |
| 4408 | value = build_value_init (TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4408, __FUNCTION__))->typed.type), tf_warning_or_error); |
| 4409 | return cxx_eval_constant_expression (ctx, value, |
| 4410 | lval, |
| 4411 | non_constant_p, overflow_p); |
| 4412 | } |
| 4413 | |
| 4414 | /* Subroutine of cxx_eval_constant_expression. |
| 4415 | Attempt to reduce a field access of a value of class type that is |
| 4416 | expressed as a BIT_FIELD_REF. */ |
| 4417 | |
| 4418 | static tree |
| 4419 | cxx_eval_bit_field_ref (const constexpr_ctx *ctx, tree t, |
| 4420 | value_cat lval, |
| 4421 | bool *non_constant_p, bool *overflow_p) |
| 4422 | { |
| 4423 | tree orig_whole = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4423, __FUNCTION__))))); |
| 4424 | tree retval, fldval, utype, mask; |
| 4425 | bool fld_seen = false; |
| 4426 | HOST_WIDE_INTlong istart, isize; |
| 4427 | tree whole = cxx_eval_constant_expression (ctx, orig_whole, |
| 4428 | lval, |
| 4429 | non_constant_p, overflow_p); |
| 4430 | tree start, field, value; |
| 4431 | unsigned HOST_WIDE_INTlong i; |
| 4432 | |
| 4433 | if (whole == orig_whole) |
| 4434 | return t; |
| 4435 | /* Don't VERIFY_CONSTANT here; we only want to check that we got a |
| 4436 | CONSTRUCTOR. */ |
| 4437 | if (!*non_constant_p |
| 4438 | && TREE_CODE (whole)((enum tree_code) (whole)->base.code) != VECTOR_CST |
| 4439 | && TREE_CODE (whole)((enum tree_code) (whole)->base.code) != CONSTRUCTOR) |
| 4440 | { |
| 4441 | if (!ctx->quiet) |
| 4442 | error ("%qE is not a constant expression", orig_whole); |
| 4443 | *non_constant_p = true; |
| 4444 | } |
| 4445 | if (*non_constant_p) |
| 4446 | return t; |
| 4447 | |
| 4448 | if (TREE_CODE (whole)((enum tree_code) (whole)->base.code) == VECTOR_CST || !INTEGRAL_TYPE_P (TREE_TYPE (t))(((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4448, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4448, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4448, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE )) |
| 4449 | { |
| 4450 | if (tree r = fold_ternary (BIT_FIELD_REF, TREE_TYPE (t), whole,fold_ternary_loc (((location_t) 0), BIT_FIELD_REF, ((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4450, __FUNCTION__))->typed.type), whole, (*((const_cast <tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4451, __FUNCTION__))))), (*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4451, __FUNCTION__)))))) |
| 4451 | TREE_OPERAND (t, 1), TREE_OPERAND (t, 2))fold_ternary_loc (((location_t) 0), BIT_FIELD_REF, ((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4450, __FUNCTION__))->typed.type), whole, (*((const_cast <tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4451, __FUNCTION__))))), (*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4451, __FUNCTION__))))))) |
| 4452 | return r; |
| 4453 | if (!ctx->quiet) |
| 4454 | error ("%qE is not a constant expression", orig_whole); |
| 4455 | *non_constant_p = true; |
| 4456 | return t; |
| 4457 | } |
| 4458 | |
| 4459 | start = TREE_OPERAND (t, 2)(*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4459, __FUNCTION__))))); |
| 4460 | istart = tree_to_shwi (start); |
| 4461 | isize = tree_to_shwi (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4461, __FUNCTION__)))))); |
| 4462 | utype = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4462, __FUNCTION__))->typed.type); |
| 4463 | if (!TYPE_UNSIGNED (utype)((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4463, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 4464 | utype = build_nonstandard_integer_type (TYPE_PRECISION (utype)((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4464, __FUNCTION__))->type_common.precision), 1); |
| 4465 | retval = build_int_cst (utype, 0); |
| 4466 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (whole), i, field, value)for (i = 0; (i >= vec_safe_length (((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4466, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) ? false : (((void) (value = (*((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4466, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].value)), (field = (*((tree_check ((whole), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4466, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].index), true); (i)++) |
| 4467 | { |
| 4468 | tree bitpos = bit_position (field); |
| 4469 | STRIP_ANY_LOCATION_WRAPPER (value)(value) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((value))))); |
| 4470 | if (bitpos == start && DECL_SIZE (field)((contains_struct_check ((field), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4470, __FUNCTION__))->decl_common.size) == TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4470, __FUNCTION__)))))) |
| 4471 | return value; |
| 4472 | if (TREE_CODE (TREE_TYPE (field))((enum tree_code) (((contains_struct_check ((field), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4472, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE |
| 4473 | && TREE_CODE (value)((enum tree_code) (value)->base.code) == INTEGER_CST |
| 4474 | && tree_fits_shwi_p (bitpos) |
| 4475 | && tree_fits_shwi_p (DECL_SIZE (field)((contains_struct_check ((field), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4475, __FUNCTION__))->decl_common.size))) |
| 4476 | { |
| 4477 | HOST_WIDE_INTlong bit = tree_to_shwi (bitpos); |
| 4478 | HOST_WIDE_INTlong sz = tree_to_shwi (DECL_SIZE (field)((contains_struct_check ((field), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4478, __FUNCTION__))->decl_common.size)); |
| 4479 | HOST_WIDE_INTlong shift; |
| 4480 | if (bit >= istart && bit + sz <= istart + isize) |
| 4481 | { |
| 4482 | fldval = fold_convert (utype, value)fold_convert_loc (((location_t) 0), utype, value); |
| 4483 | mask = build_int_cst_type (utype, -1); |
| 4484 | mask = fold_build2 (LSHIFT_EXPR, utype, mask,fold_build2_loc (((location_t) 0), LSHIFT_EXPR, utype, mask, size_int_kind (((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4485, __FUNCTION__))->type_common.precision) - sz, stk_sizetype ) ) |
| 4485 | size_int (TYPE_PRECISION (utype) - sz))fold_build2_loc (((location_t) 0), LSHIFT_EXPR, utype, mask, size_int_kind (((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4485, __FUNCTION__))->type_common.precision) - sz, stk_sizetype ) ); |
| 4486 | mask = fold_build2 (RSHIFT_EXPR, utype, mask,fold_build2_loc (((location_t) 0), RSHIFT_EXPR, utype, mask, size_int_kind (((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4487, __FUNCTION__))->type_common.precision) - sz, stk_sizetype ) ) |
| 4487 | size_int (TYPE_PRECISION (utype) - sz))fold_build2_loc (((location_t) 0), RSHIFT_EXPR, utype, mask, size_int_kind (((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4487, __FUNCTION__))->type_common.precision) - sz, stk_sizetype ) ); |
| 4488 | fldval = fold_build2 (BIT_AND_EXPR, utype, fldval, mask)fold_build2_loc (((location_t) 0), BIT_AND_EXPR, utype, fldval , mask ); |
| 4489 | shift = bit - istart; |
| 4490 | if (BYTES_BIG_ENDIAN0) |
| 4491 | shift = TYPE_PRECISION (utype)((tree_class_check ((utype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4491, __FUNCTION__))->type_common.precision) - shift - sz; |
| 4492 | fldval = fold_build2 (LSHIFT_EXPR, utype, fldval,fold_build2_loc (((location_t) 0), LSHIFT_EXPR, utype, fldval , size_int_kind (shift, stk_sizetype) ) |
| 4493 | size_int (shift))fold_build2_loc (((location_t) 0), LSHIFT_EXPR, utype, fldval , size_int_kind (shift, stk_sizetype) ); |
| 4494 | retval = fold_build2 (BIT_IOR_EXPR, utype, retval, fldval)fold_build2_loc (((location_t) 0), BIT_IOR_EXPR, utype, retval , fldval ); |
| 4495 | fld_seen = true; |
| 4496 | } |
| 4497 | } |
| 4498 | } |
| 4499 | if (fld_seen) |
| 4500 | return fold_convert (TREE_TYPE (t), retval)fold_convert_loc (((location_t) 0), ((contains_struct_check ( (t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4500, __FUNCTION__))->typed.type), retval); |
| 4501 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4501, __FUNCTION__)); |
| 4502 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 4503 | } |
| 4504 | |
| 4505 | /* Helper for cxx_eval_bit_cast. |
| 4506 | Check [bit.cast]/3 rules, bit_cast is constexpr only if the To and From |
| 4507 | types and types of all subobjects have is_union_v<T>, is_pointer_v<T>, |
| 4508 | is_member_pointer_v<T>, is_volatile_v<T> false and has no non-static |
| 4509 | data members of reference type. */ |
| 4510 | |
| 4511 | static bool |
| 4512 | check_bit_cast_type (const constexpr_ctx *ctx, location_t loc, tree type, |
| 4513 | tree orig_type) |
| 4514 | { |
| 4515 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == UNION_TYPE) |
| 4516 | { |
| 4517 | if (!ctx->quiet) |
| 4518 | { |
| 4519 | if (type == orig_type) |
| 4520 | error_at (loc, "%qs is not a constant expression because %qT is " |
| 4521 | "a union type", "__builtin_bit_cast", type); |
| 4522 | else |
| 4523 | error_at (loc, "%qs is not a constant expression because %qT " |
| 4524 | "contains a union type", "__builtin_bit_cast", |
| 4525 | orig_type); |
| 4526 | } |
| 4527 | return true; |
| 4528 | } |
| 4529 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == POINTER_TYPE) |
| 4530 | { |
| 4531 | if (!ctx->quiet) |
| 4532 | { |
| 4533 | if (type == orig_type) |
| 4534 | error_at (loc, "%qs is not a constant expression because %qT is " |
| 4535 | "a pointer type", "__builtin_bit_cast", type); |
| 4536 | else |
| 4537 | error_at (loc, "%qs is not a constant expression because %qT " |
| 4538 | "contains a pointer type", "__builtin_bit_cast", |
| 4539 | orig_type); |
| 4540 | } |
| 4541 | return true; |
| 4542 | } |
| 4543 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == REFERENCE_TYPE) |
| 4544 | { |
| 4545 | if (!ctx->quiet) |
| 4546 | { |
| 4547 | if (type == orig_type) |
| 4548 | error_at (loc, "%qs is not a constant expression because %qT is " |
| 4549 | "a reference type", "__builtin_bit_cast", type); |
| 4550 | else |
| 4551 | error_at (loc, "%qs is not a constant expression because %qT " |
| 4552 | "contains a reference type", "__builtin_bit_cast", |
| 4553 | orig_type); |
| 4554 | } |
| 4555 | return true; |
| 4556 | } |
| 4557 | if (TYPE_PTRMEM_P (type)((((enum tree_code) (type)->base.code) == OFFSET_TYPE) || ( ((enum tree_code) (type)->base.code) == RECORD_TYPE && (((tree_class_check (((tree_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4557, __FUNCTION__, (RECORD_TYPE)))), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4557, __FUNCTION__))->type_common.lang_flag_2))))) |
| 4558 | { |
| 4559 | if (!ctx->quiet) |
| 4560 | { |
| 4561 | if (type == orig_type) |
| 4562 | error_at (loc, "%qs is not a constant expression because %qT is " |
| 4563 | "a pointer to member type", "__builtin_bit_cast", |
| 4564 | type); |
| 4565 | else |
| 4566 | error_at (loc, "%qs is not a constant expression because %qT " |
| 4567 | "contains a pointer to member type", |
| 4568 | "__builtin_bit_cast", orig_type); |
| 4569 | } |
| 4570 | return true; |
| 4571 | } |
| 4572 | if (TYPE_VOLATILE (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4572, __FUNCTION__))->base.volatile_flag)) |
| 4573 | { |
| 4574 | if (!ctx->quiet) |
| 4575 | { |
| 4576 | if (type == orig_type) |
| 4577 | error_at (loc, "%qs is not a constant expression because %qT is " |
| 4578 | "volatile", "__builtin_bit_cast", type); |
| 4579 | else |
| 4580 | error_at (loc, "%qs is not a constant expression because %qT " |
| 4581 | "contains a volatile subobject", |
| 4582 | "__builtin_bit_cast", orig_type); |
| 4583 | } |
| 4584 | return true; |
| 4585 | } |
| 4586 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == RECORD_TYPE) |
| 4587 | for (tree field = TYPE_FIELDS (type)((tree_check3 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4587, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); field; field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4587, __FUNCTION__))), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4587, __FUNCTION__))->common.chain))) |
| 4588 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) == FIELD_DECL |
| 4589 | && check_bit_cast_type (ctx, loc, TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4589, __FUNCTION__))->typed.type), orig_type)) |
| 4590 | return true; |
| 4591 | return false; |
| 4592 | } |
| 4593 | |
| 4594 | /* Helper function for cxx_eval_bit_cast. For unsigned char or |
| 4595 | std::byte members of CONSTRUCTOR (recursively) if they contain |
| 4596 | some indeterminate bits (as set in MASK), remove the ctor elts, |
| 4597 | mark the CONSTRUCTOR as CONSTRUCTOR_NO_CLEARING and clear the |
| 4598 | bits in MASK. */ |
| 4599 | |
| 4600 | static void |
| 4601 | clear_uchar_or_std_byte_in_mask (location_t loc, tree t, unsigned char *mask) |
| 4602 | { |
| 4603 | if (TREE_CODE (t)((enum tree_code) (t)->base.code) != CONSTRUCTOR) |
| 4604 | return; |
| 4605 | |
| 4606 | unsigned i, j = 0; |
| 4607 | tree index, value; |
| 4608 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t), i, index, value)for (i = 0; (i >= vec_safe_length (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4608, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) ? false : (((void) (value = (*((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4608, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].value)), (index = (*((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4608, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ i].index), true); (i)++) |
| 4609 | { |
| 4610 | tree type = TREE_TYPE (value)((contains_struct_check ((value), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4610, __FUNCTION__))->typed.type); |
| 4611 | if (TREE_CODE (TREE_TYPE (t))((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4611, __FUNCTION__))->typed.type))->base.code) != ARRAY_TYPE |
| 4612 | && DECL_BIT_FIELD_TYPE (index)((tree_check ((index), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4612, __FUNCTION__, (FIELD_DECL)))->field_decl.bit_field_type ) != NULL_TREE(tree) __null) |
| 4613 | { |
| 4614 | if (is_byte_access_type_not_plain_char (DECL_BIT_FIELD_TYPE (index)((tree_check ((index), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/cp/constexpr.cc" , 4614, __FUNCTION__, (FIELD_DECL)))->field_decl.bit_field_type ))) |
| 4615 |