| File: | build/gcc/fold-const.cc |
| Warning: | line 8489, column 9 Value stored to 'diff' during its initialization is never read |
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| 1 | /* Fold a constant sub-tree into a single node for C-compiler |
| 2 | Copyright (C) 1987-2023 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GCC. |
| 5 | |
| 6 | GCC is free software; you can redistribute it and/or modify it under |
| 7 | the terms of the GNU General Public License as published by the Free |
| 8 | Software Foundation; either version 3, or (at your option) any later |
| 9 | version. |
| 10 | |
| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GCC; see the file COPYING3. If not see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | /*@@ This file should be rewritten to use an arbitrary precision |
| 21 | @@ representation for "struct tree_int_cst" and "struct tree_real_cst". |
| 22 | @@ Perhaps the routines could also be used for bc/dc, and made a lib. |
| 23 | @@ The routines that translate from the ap rep should |
| 24 | @@ warn if precision et. al. is lost. |
| 25 | @@ This would also make life easier when this technology is used |
| 26 | @@ for cross-compilers. */ |
| 27 | |
| 28 | /* The entry points in this file are fold, size_int_wide and size_binop. |
| 29 | |
| 30 | fold takes a tree as argument and returns a simplified tree. |
| 31 | |
| 32 | size_binop takes a tree code for an arithmetic operation |
| 33 | and two operands that are trees, and produces a tree for the |
| 34 | result, assuming the type comes from `sizetype'. |
| 35 | |
| 36 | size_int takes an integer value, and creates a tree constant |
| 37 | with type from `sizetype'. |
| 38 | |
| 39 | Note: Since the folders get called on non-gimple code as well as |
| 40 | gimple code, we need to handle GIMPLE tuples as well as their |
| 41 | corresponding tree equivalents. */ |
| 42 | |
| 43 | #include "config.h" |
| 44 | #include "system.h" |
| 45 | #include "coretypes.h" |
| 46 | #include "backend.h" |
| 47 | #include "target.h" |
| 48 | #include "rtl.h" |
| 49 | #include "tree.h" |
| 50 | #include "gimple.h" |
| 51 | #include "predict.h" |
| 52 | #include "memmodel.h" |
| 53 | #include "tm_p.h" |
| 54 | #include "tree-ssa-operands.h" |
| 55 | #include "optabs-query.h" |
| 56 | #include "cgraph.h" |
| 57 | #include "diagnostic-core.h" |
| 58 | #include "flags.h" |
| 59 | #include "alias.h" |
| 60 | #include "fold-const.h" |
| 61 | #include "fold-const-call.h" |
| 62 | #include "stor-layout.h" |
| 63 | #include "calls.h" |
| 64 | #include "tree-iterator.h" |
| 65 | #include "expr.h" |
| 66 | #include "intl.h" |
| 67 | #include "langhooks.h" |
| 68 | #include "tree-eh.h" |
| 69 | #include "gimplify.h" |
| 70 | #include "tree-dfa.h" |
| 71 | #include "builtins.h" |
| 72 | #include "generic-match.h" |
| 73 | #include "gimple-iterator.h" |
| 74 | #include "gimple-fold.h" |
| 75 | #include "tree-into-ssa.h" |
| 76 | #include "md5.h" |
| 77 | #include "case-cfn-macros.h" |
| 78 | #include "stringpool.h" |
| 79 | #include "tree-vrp.h" |
| 80 | #include "tree-ssanames.h" |
| 81 | #include "selftest.h" |
| 82 | #include "stringpool.h" |
| 83 | #include "attribs.h" |
| 84 | #include "tree-vector-builder.h" |
| 85 | #include "vec-perm-indices.h" |
| 86 | #include "asan.h" |
| 87 | #include "gimple-range.h" |
| 88 | |
| 89 | /* Nonzero if we are folding constants inside an initializer or a C++ |
| 90 | manifestly-constant-evaluated context; zero otherwise. |
| 91 | Should be used when folding in initializer enables additional |
| 92 | optimizations. */ |
| 93 | int folding_initializer = 0; |
| 94 | |
| 95 | /* Nonzero if we are folding C++ manifestly-constant-evaluated context; zero |
| 96 | otherwise. |
| 97 | Should be used when certain constructs shouldn't be optimized |
| 98 | during folding in that context. */ |
| 99 | bool folding_cxx_constexpr = false; |
| 100 | |
| 101 | /* The following constants represent a bit based encoding of GCC's |
| 102 | comparison operators. This encoding simplifies transformations |
| 103 | on relational comparison operators, such as AND and OR. */ |
| 104 | enum comparison_code { |
| 105 | COMPCODE_FALSE = 0, |
| 106 | COMPCODE_LT = 1, |
| 107 | COMPCODE_EQ = 2, |
| 108 | COMPCODE_LE = 3, |
| 109 | COMPCODE_GT = 4, |
| 110 | COMPCODE_LTGT = 5, |
| 111 | COMPCODE_GE = 6, |
| 112 | COMPCODE_ORD = 7, |
| 113 | COMPCODE_UNORD = 8, |
| 114 | COMPCODE_UNLT = 9, |
| 115 | COMPCODE_UNEQ = 10, |
| 116 | COMPCODE_UNLE = 11, |
| 117 | COMPCODE_UNGT = 12, |
| 118 | COMPCODE_NE = 13, |
| 119 | COMPCODE_UNGE = 14, |
| 120 | COMPCODE_TRUE = 15 |
| 121 | }; |
| 122 | |
| 123 | static bool negate_expr_p (tree); |
| 124 | static tree negate_expr (tree); |
| 125 | static tree associate_trees (location_t, tree, tree, enum tree_code, tree); |
| 126 | static enum comparison_code comparison_to_compcode (enum tree_code); |
| 127 | static enum tree_code compcode_to_comparison (enum comparison_code); |
| 128 | static bool twoval_comparison_p (tree, tree *, tree *); |
| 129 | static tree eval_subst (location_t, tree, tree, tree, tree, tree); |
| 130 | static tree optimize_bit_field_compare (location_t, enum tree_code, |
| 131 | tree, tree, tree); |
| 132 | static bool simple_operand_p (const_tree); |
| 133 | static tree range_binop (enum tree_code, tree, tree, int, tree, int); |
| 134 | static tree range_predecessor (tree); |
| 135 | static tree range_successor (tree); |
| 136 | static tree fold_range_test (location_t, enum tree_code, tree, tree, tree); |
| 137 | static tree fold_cond_expr_with_comparison (location_t, tree, enum tree_code, |
| 138 | tree, tree, tree, tree); |
| 139 | static tree unextend (tree, int, int, tree); |
| 140 | static tree extract_muldiv (tree, tree, enum tree_code, tree, bool *); |
| 141 | static tree extract_muldiv_1 (tree, tree, enum tree_code, tree, bool *); |
| 142 | static tree fold_binary_op_with_conditional_arg (location_t, |
| 143 | enum tree_code, tree, |
| 144 | tree, tree, |
| 145 | tree, tree, int); |
| 146 | static tree fold_negate_const (tree, tree); |
| 147 | static tree fold_not_const (const_tree, tree); |
| 148 | static tree fold_relational_const (enum tree_code, tree, tree, tree); |
| 149 | static tree fold_convert_const (enum tree_code, tree, tree); |
| 150 | static tree fold_view_convert_expr (tree, tree); |
| 151 | static tree fold_negate_expr (location_t, tree); |
| 152 | |
| 153 | |
| 154 | /* Return EXPR_LOCATION of T if it is not UNKNOWN_LOCATION. |
| 155 | Otherwise, return LOC. */ |
| 156 | |
| 157 | static location_t |
| 158 | expr_location_or (tree t, location_t loc) |
| 159 | { |
| 160 | location_t tloc = 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)); |
| 161 | return tloc == UNKNOWN_LOCATION((location_t) 0) ? loc : tloc; |
| 162 | } |
| 163 | |
| 164 | /* Similar to protected_set_expr_location, but never modify x in place, |
| 165 | if location can and needs to be set, unshare it. */ |
| 166 | |
| 167 | tree |
| 168 | protected_set_expr_location_unshare (tree x, location_t loc) |
| 169 | { |
| 170 | if (CAN_HAVE_LOCATION_P (x)((x) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) (x)->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) (x)->base.code))]) <= tcc_expression )) |
| 171 | && EXPR_LOCATION (x)((((x)) && ((tree_code_type_tmpl <0>::tree_code_type [(int) (((enum tree_code) ((x))->base.code))]) >= tcc_reference && (tree_code_type_tmpl <0>::tree_code_type[(int ) (((enum tree_code) ((x))->base.code))]) <= tcc_expression )) ? (x)->exp.locus : ((location_t) 0)) != loc |
| 172 | && !(TREE_CODE (x)((enum tree_code) (x)->base.code) == SAVE_EXPR |
| 173 | || TREE_CODE (x)((enum tree_code) (x)->base.code) == TARGET_EXPR |
| 174 | || TREE_CODE (x)((enum tree_code) (x)->base.code) == BIND_EXPR)) |
| 175 | { |
| 176 | x = copy_node (x); |
| 177 | SET_EXPR_LOCATION (x, loc)(expr_check (((x)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 177, __FUNCTION__))->exp.locus = (loc); |
| 178 | } |
| 179 | return x; |
| 180 | } |
| 181 | |
| 182 | /* If ARG2 divides ARG1 with zero remainder, carries out the exact |
| 183 | division and returns the quotient. Otherwise returns |
| 184 | NULL_TREE. */ |
| 185 | |
| 186 | tree |
| 187 | div_if_zero_remainder (const_tree arg1, const_tree arg2) |
| 188 | { |
| 189 | widest_int quo; |
| 190 | |
| 191 | if (wi::multiple_of_p (wi::to_widest (arg1), wi::to_widest (arg2), |
| 192 | SIGNED, &quo)) |
| 193 | return wide_int_to_tree (TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 193, __FUNCTION__))->typed.type), quo); |
| 194 | |
| 195 | return NULL_TREE(tree) __null; |
| 196 | } |
| 197 | |
| 198 | /* This is nonzero if we should defer warnings about undefined |
| 199 | overflow. This facility exists because these warnings are a |
| 200 | special case. The code to estimate loop iterations does not want |
| 201 | to issue any warnings, since it works with expressions which do not |
| 202 | occur in user code. Various bits of cleanup code call fold(), but |
| 203 | only use the result if it has certain characteristics (e.g., is a |
| 204 | constant); that code only wants to issue a warning if the result is |
| 205 | used. */ |
| 206 | |
| 207 | static int fold_deferring_overflow_warnings; |
| 208 | |
| 209 | /* If a warning about undefined overflow is deferred, this is the |
| 210 | warning. Note that this may cause us to turn two warnings into |
| 211 | one, but that is fine since it is sufficient to only give one |
| 212 | warning per expression. */ |
| 213 | |
| 214 | static const char* fold_deferred_overflow_warning; |
| 215 | |
| 216 | /* If a warning about undefined overflow is deferred, this is the |
| 217 | level at which the warning should be emitted. */ |
| 218 | |
| 219 | static enum warn_strict_overflow_code fold_deferred_overflow_code; |
| 220 | |
| 221 | /* Start deferring overflow warnings. We could use a stack here to |
| 222 | permit nested calls, but at present it is not necessary. */ |
| 223 | |
| 224 | void |
| 225 | fold_defer_overflow_warnings (void) |
| 226 | { |
| 227 | ++fold_deferring_overflow_warnings; |
| 228 | } |
| 229 | |
| 230 | /* Stop deferring overflow warnings. If there is a pending warning, |
| 231 | and ISSUE is true, then issue the warning if appropriate. STMT is |
| 232 | the statement with which the warning should be associated (used for |
| 233 | location information); STMT may be NULL. CODE is the level of the |
| 234 | warning--a warn_strict_overflow_code value. This function will use |
| 235 | the smaller of CODE and the deferred code when deciding whether to |
| 236 | issue the warning. CODE may be zero to mean to always use the |
| 237 | deferred code. */ |
| 238 | |
| 239 | void |
| 240 | fold_undefer_overflow_warnings (bool issue, const gimple *stmt, int code) |
| 241 | { |
| 242 | const char *warnmsg; |
| 243 | location_t locus; |
| 244 | |
| 245 | gcc_assert (fold_deferring_overflow_warnings > 0)((void)(!(fold_deferring_overflow_warnings > 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 245, __FUNCTION__), 0 : 0)); |
| 246 | --fold_deferring_overflow_warnings; |
| 247 | if (fold_deferring_overflow_warnings > 0) |
| 248 | { |
| 249 | if (fold_deferred_overflow_warning != NULL__null |
| 250 | && code != 0 |
| 251 | && code < (int) fold_deferred_overflow_code) |
| 252 | fold_deferred_overflow_code = (enum warn_strict_overflow_code) code; |
| 253 | return; |
| 254 | } |
| 255 | |
| 256 | warnmsg = fold_deferred_overflow_warning; |
| 257 | fold_deferred_overflow_warning = NULL__null; |
| 258 | |
| 259 | if (!issue || warnmsg == NULL__null) |
| 260 | return; |
| 261 | |
| 262 | if (warning_suppressed_p (stmt, OPT_Wstrict_overflow)) |
| 263 | return; |
| 264 | |
| 265 | /* Use the smallest code level when deciding to issue the |
| 266 | warning. */ |
| 267 | if (code == 0 || code > (int) fold_deferred_overflow_code) |
| 268 | code = fold_deferred_overflow_code; |
| 269 | |
| 270 | if (!issue_strict_overflow_warning (code)(global_options.x_warn_strict_overflow >= (int) (code))) |
| 271 | return; |
| 272 | |
| 273 | if (stmt == NULL__null) |
| 274 | locus = input_location; |
| 275 | else |
| 276 | locus = gimple_location (stmt); |
| 277 | warning_at (locus, OPT_Wstrict_overflow, "%s", warnmsg); |
| 278 | } |
| 279 | |
| 280 | /* Stop deferring overflow warnings, ignoring any deferred |
| 281 | warnings. */ |
| 282 | |
| 283 | void |
| 284 | fold_undefer_and_ignore_overflow_warnings (void) |
| 285 | { |
| 286 | fold_undefer_overflow_warnings (false, NULL__null, 0); |
| 287 | } |
| 288 | |
| 289 | /* Whether we are deferring overflow warnings. */ |
| 290 | |
| 291 | bool |
| 292 | fold_deferring_overflow_warnings_p (void) |
| 293 | { |
| 294 | return fold_deferring_overflow_warnings > 0; |
| 295 | } |
| 296 | |
| 297 | /* This is called when we fold something based on the fact that signed |
| 298 | overflow is undefined. */ |
| 299 | |
| 300 | void |
| 301 | fold_overflow_warning (const char* gmsgid, enum warn_strict_overflow_code wc) |
| 302 | { |
| 303 | if (fold_deferring_overflow_warnings > 0) |
| 304 | { |
| 305 | if (fold_deferred_overflow_warning == NULL__null |
| 306 | || wc < fold_deferred_overflow_code) |
| 307 | { |
| 308 | fold_deferred_overflow_warning = gmsgid; |
| 309 | fold_deferred_overflow_code = wc; |
| 310 | } |
| 311 | } |
| 312 | else if (issue_strict_overflow_warning (wc)(global_options.x_warn_strict_overflow >= (int) (wc))) |
| 313 | warning (OPT_Wstrict_overflow, gmsgid); |
| 314 | } |
| 315 | |
| 316 | /* Return true if the built-in mathematical function specified by CODE |
| 317 | is odd, i.e. -f(x) == f(-x). */ |
| 318 | |
| 319 | bool |
| 320 | negate_mathfn_p (combined_fn fn) |
| 321 | { |
| 322 | switch (fn) |
| 323 | { |
| 324 | CASE_CFN_ASINcase CFN_ASIN: case CFN_BUILT_IN_ASINF: case CFN_BUILT_IN_ASIN : case CFN_BUILT_IN_ASINL: |
| 325 | CASE_CFN_ASIN_FNcase CFN_BUILT_IN_ASINF16: case CFN_BUILT_IN_ASINF32: case CFN_BUILT_IN_ASINF64 : case CFN_BUILT_IN_ASINF128: case CFN_BUILT_IN_ASINF32X: case CFN_BUILT_IN_ASINF64X: case CFN_BUILT_IN_ASINF128X: |
| 326 | CASE_CFN_ASINHcase CFN_ASINH: case CFN_BUILT_IN_ASINHF: case CFN_BUILT_IN_ASINH : case CFN_BUILT_IN_ASINHL: |
| 327 | CASE_CFN_ASINH_FNcase CFN_BUILT_IN_ASINHF16: case CFN_BUILT_IN_ASINHF32: case CFN_BUILT_IN_ASINHF64 : case CFN_BUILT_IN_ASINHF128: case CFN_BUILT_IN_ASINHF32X: case CFN_BUILT_IN_ASINHF64X: case CFN_BUILT_IN_ASINHF128X: |
| 328 | CASE_CFN_ATANcase CFN_ATAN: case CFN_BUILT_IN_ATANF: case CFN_BUILT_IN_ATAN : case CFN_BUILT_IN_ATANL: |
| 329 | CASE_CFN_ATAN_FNcase CFN_BUILT_IN_ATANF16: case CFN_BUILT_IN_ATANF32: case CFN_BUILT_IN_ATANF64 : case CFN_BUILT_IN_ATANF128: case CFN_BUILT_IN_ATANF32X: case CFN_BUILT_IN_ATANF64X: case CFN_BUILT_IN_ATANF128X: |
| 330 | CASE_CFN_ATANHcase CFN_ATANH: case CFN_BUILT_IN_ATANHF: case CFN_BUILT_IN_ATANH : case CFN_BUILT_IN_ATANHL: |
| 331 | CASE_CFN_ATANH_FNcase CFN_BUILT_IN_ATANHF16: case CFN_BUILT_IN_ATANHF32: case CFN_BUILT_IN_ATANHF64 : case CFN_BUILT_IN_ATANHF128: case CFN_BUILT_IN_ATANHF32X: case CFN_BUILT_IN_ATANHF64X: case CFN_BUILT_IN_ATANHF128X: |
| 332 | CASE_CFN_CASINcase CFN_BUILT_IN_CASINF: case CFN_BUILT_IN_CASIN: case CFN_BUILT_IN_CASINL: |
| 333 | CASE_CFN_CASIN_FNcase CFN_BUILT_IN_CASINF16: case CFN_BUILT_IN_CASINF32: case CFN_BUILT_IN_CASINF64 : case CFN_BUILT_IN_CASINF128: case CFN_BUILT_IN_CASINF32X: case CFN_BUILT_IN_CASINF64X: case CFN_BUILT_IN_CASINF128X: |
| 334 | CASE_CFN_CASINHcase CFN_BUILT_IN_CASINHF: case CFN_BUILT_IN_CASINH: case CFN_BUILT_IN_CASINHL: |
| 335 | CASE_CFN_CASINH_FNcase CFN_BUILT_IN_CASINHF16: case CFN_BUILT_IN_CASINHF32: case CFN_BUILT_IN_CASINHF64: case CFN_BUILT_IN_CASINHF128: case CFN_BUILT_IN_CASINHF32X : case CFN_BUILT_IN_CASINHF64X: case CFN_BUILT_IN_CASINHF128X: |
| 336 | CASE_CFN_CATANcase CFN_BUILT_IN_CATANF: case CFN_BUILT_IN_CATAN: case CFN_BUILT_IN_CATANL: |
| 337 | CASE_CFN_CATAN_FNcase CFN_BUILT_IN_CATANF16: case CFN_BUILT_IN_CATANF32: case CFN_BUILT_IN_CATANF64 : case CFN_BUILT_IN_CATANF128: case CFN_BUILT_IN_CATANF32X: case CFN_BUILT_IN_CATANF64X: case CFN_BUILT_IN_CATANF128X: |
| 338 | CASE_CFN_CATANHcase CFN_BUILT_IN_CATANHF: case CFN_BUILT_IN_CATANH: case CFN_BUILT_IN_CATANHL: |
| 339 | CASE_CFN_CATANH_FNcase CFN_BUILT_IN_CATANHF16: case CFN_BUILT_IN_CATANHF32: case CFN_BUILT_IN_CATANHF64: case CFN_BUILT_IN_CATANHF128: case CFN_BUILT_IN_CATANHF32X : case CFN_BUILT_IN_CATANHF64X: case CFN_BUILT_IN_CATANHF128X: |
| 340 | CASE_CFN_CBRTcase CFN_BUILT_IN_CBRTF: case CFN_BUILT_IN_CBRT: case CFN_BUILT_IN_CBRTL: |
| 341 | CASE_CFN_CBRT_FNcase CFN_BUILT_IN_CBRTF16: case CFN_BUILT_IN_CBRTF32: case CFN_BUILT_IN_CBRTF64 : case CFN_BUILT_IN_CBRTF128: case CFN_BUILT_IN_CBRTF32X: case CFN_BUILT_IN_CBRTF64X: case CFN_BUILT_IN_CBRTF128X: |
| 342 | CASE_CFN_CPROJcase CFN_BUILT_IN_CPROJF: case CFN_BUILT_IN_CPROJ: case CFN_BUILT_IN_CPROJL: |
| 343 | CASE_CFN_CPROJ_FNcase CFN_BUILT_IN_CPROJF16: case CFN_BUILT_IN_CPROJF32: case CFN_BUILT_IN_CPROJF64 : case CFN_BUILT_IN_CPROJF128: case CFN_BUILT_IN_CPROJF32X: case CFN_BUILT_IN_CPROJF64X: case CFN_BUILT_IN_CPROJF128X: |
| 344 | CASE_CFN_CSINcase CFN_BUILT_IN_CSINF: case CFN_BUILT_IN_CSIN: case CFN_BUILT_IN_CSINL: |
| 345 | CASE_CFN_CSIN_FNcase CFN_BUILT_IN_CSINF16: case CFN_BUILT_IN_CSINF32: case CFN_BUILT_IN_CSINF64 : case CFN_BUILT_IN_CSINF128: case CFN_BUILT_IN_CSINF32X: case CFN_BUILT_IN_CSINF64X: case CFN_BUILT_IN_CSINF128X: |
| 346 | CASE_CFN_CSINHcase CFN_BUILT_IN_CSINHF: case CFN_BUILT_IN_CSINH: case CFN_BUILT_IN_CSINHL: |
| 347 | CASE_CFN_CSINH_FNcase CFN_BUILT_IN_CSINHF16: case CFN_BUILT_IN_CSINHF32: case CFN_BUILT_IN_CSINHF64 : case CFN_BUILT_IN_CSINHF128: case CFN_BUILT_IN_CSINHF32X: case CFN_BUILT_IN_CSINHF64X: case CFN_BUILT_IN_CSINHF128X: |
| 348 | CASE_CFN_CTANcase CFN_BUILT_IN_CTANF: case CFN_BUILT_IN_CTAN: case CFN_BUILT_IN_CTANL: |
| 349 | CASE_CFN_CTAN_FNcase CFN_BUILT_IN_CTANF16: case CFN_BUILT_IN_CTANF32: case CFN_BUILT_IN_CTANF64 : case CFN_BUILT_IN_CTANF128: case CFN_BUILT_IN_CTANF32X: case CFN_BUILT_IN_CTANF64X: case CFN_BUILT_IN_CTANF128X: |
| 350 | CASE_CFN_CTANHcase CFN_BUILT_IN_CTANHF: case CFN_BUILT_IN_CTANH: case CFN_BUILT_IN_CTANHL: |
| 351 | CASE_CFN_CTANH_FNcase CFN_BUILT_IN_CTANHF16: case CFN_BUILT_IN_CTANHF32: case CFN_BUILT_IN_CTANHF64 : case CFN_BUILT_IN_CTANHF128: case CFN_BUILT_IN_CTANHF32X: case CFN_BUILT_IN_CTANHF64X: case CFN_BUILT_IN_CTANHF128X: |
| 352 | CASE_CFN_ERFcase CFN_BUILT_IN_ERFF: case CFN_BUILT_IN_ERF: case CFN_BUILT_IN_ERFL: |
| 353 | CASE_CFN_ERF_FNcase CFN_BUILT_IN_ERFF16: case CFN_BUILT_IN_ERFF32: case CFN_BUILT_IN_ERFF64 : case CFN_BUILT_IN_ERFF128: case CFN_BUILT_IN_ERFF32X: case CFN_BUILT_IN_ERFF64X : case CFN_BUILT_IN_ERFF128X: |
| 354 | CASE_CFN_LLROUNDcase CFN_LLROUND: case CFN_BUILT_IN_LLROUNDF: case CFN_BUILT_IN_LLROUND : case CFN_BUILT_IN_LLROUNDL: |
| 355 | CASE_CFN_LLROUND_FNcase CFN_BUILT_IN_LLROUNDF16: case CFN_BUILT_IN_LLROUNDF32: case CFN_BUILT_IN_LLROUNDF64: case CFN_BUILT_IN_LLROUNDF128: case CFN_BUILT_IN_LLROUNDF32X: case CFN_BUILT_IN_LLROUNDF64X: case CFN_BUILT_IN_LLROUNDF128X: |
| 356 | CASE_CFN_LROUNDcase CFN_LROUND: case CFN_BUILT_IN_LROUNDF: case CFN_BUILT_IN_LROUND : case CFN_BUILT_IN_LROUNDL: |
| 357 | CASE_CFN_LROUND_FNcase CFN_BUILT_IN_LROUNDF16: case CFN_BUILT_IN_LROUNDF32: case CFN_BUILT_IN_LROUNDF64: case CFN_BUILT_IN_LROUNDF128: case CFN_BUILT_IN_LROUNDF32X : case CFN_BUILT_IN_LROUNDF64X: case CFN_BUILT_IN_LROUNDF128X: |
| 358 | CASE_CFN_ROUNDcase CFN_ROUND: case CFN_BUILT_IN_ROUNDF: case CFN_BUILT_IN_ROUND : case CFN_BUILT_IN_ROUNDL: |
| 359 | CASE_CFN_ROUNDEVENcase CFN_ROUNDEVEN: case CFN_BUILT_IN_ROUNDEVENF: case CFN_BUILT_IN_ROUNDEVEN : case CFN_BUILT_IN_ROUNDEVENL: |
| 360 | CASE_CFN_ROUNDEVEN_FNcase CFN_BUILT_IN_ROUNDEVENF16: case CFN_BUILT_IN_ROUNDEVENF32 : case CFN_BUILT_IN_ROUNDEVENF64: case CFN_BUILT_IN_ROUNDEVENF128 : case CFN_BUILT_IN_ROUNDEVENF32X: case CFN_BUILT_IN_ROUNDEVENF64X : case CFN_BUILT_IN_ROUNDEVENF128X: |
| 361 | CASE_CFN_SINcase CFN_SIN: case CFN_BUILT_IN_SINF: case CFN_BUILT_IN_SIN: case CFN_BUILT_IN_SINL: |
| 362 | CASE_CFN_SIN_FNcase CFN_BUILT_IN_SINF16: case CFN_BUILT_IN_SINF32: case CFN_BUILT_IN_SINF64 : case CFN_BUILT_IN_SINF128: case CFN_BUILT_IN_SINF32X: case CFN_BUILT_IN_SINF64X : case CFN_BUILT_IN_SINF128X: |
| 363 | CASE_CFN_SINHcase CFN_SINH: case CFN_BUILT_IN_SINHF: case CFN_BUILT_IN_SINH : case CFN_BUILT_IN_SINHL: |
| 364 | CASE_CFN_SINH_FNcase CFN_BUILT_IN_SINHF16: case CFN_BUILT_IN_SINHF32: case CFN_BUILT_IN_SINHF64 : case CFN_BUILT_IN_SINHF128: case CFN_BUILT_IN_SINHF32X: case CFN_BUILT_IN_SINHF64X: case CFN_BUILT_IN_SINHF128X: |
| 365 | CASE_CFN_TANcase CFN_TAN: case CFN_BUILT_IN_TANF: case CFN_BUILT_IN_TAN: case CFN_BUILT_IN_TANL: |
| 366 | CASE_CFN_TAN_FNcase CFN_BUILT_IN_TANF16: case CFN_BUILT_IN_TANF32: case CFN_BUILT_IN_TANF64 : case CFN_BUILT_IN_TANF128: case CFN_BUILT_IN_TANF32X: case CFN_BUILT_IN_TANF64X : case CFN_BUILT_IN_TANF128X: |
| 367 | CASE_CFN_TANHcase CFN_TANH: case CFN_BUILT_IN_TANHF: case CFN_BUILT_IN_TANH : case CFN_BUILT_IN_TANHL: |
| 368 | CASE_CFN_TANH_FNcase CFN_BUILT_IN_TANHF16: case CFN_BUILT_IN_TANHF32: case CFN_BUILT_IN_TANHF64 : case CFN_BUILT_IN_TANHF128: case CFN_BUILT_IN_TANHF32X: case CFN_BUILT_IN_TANHF64X: case CFN_BUILT_IN_TANHF128X: |
| 369 | CASE_CFN_TRUNCcase CFN_TRUNC: case CFN_BUILT_IN_TRUNCF: case CFN_BUILT_IN_TRUNC : case CFN_BUILT_IN_TRUNCL: |
| 370 | CASE_CFN_TRUNC_FNcase CFN_BUILT_IN_TRUNCF16: case CFN_BUILT_IN_TRUNCF32: case CFN_BUILT_IN_TRUNCF64 : case CFN_BUILT_IN_TRUNCF128: case CFN_BUILT_IN_TRUNCF32X: case CFN_BUILT_IN_TRUNCF64X: case CFN_BUILT_IN_TRUNCF128X: |
| 371 | return true; |
| 372 | |
| 373 | CASE_CFN_LLRINTcase CFN_LLRINT: case CFN_BUILT_IN_LLRINTF: case CFN_BUILT_IN_LLRINT : case CFN_BUILT_IN_LLRINTL: |
| 374 | CASE_CFN_LLRINT_FNcase CFN_BUILT_IN_LLRINTF16: case CFN_BUILT_IN_LLRINTF32: case CFN_BUILT_IN_LLRINTF64: case CFN_BUILT_IN_LLRINTF128: case CFN_BUILT_IN_LLRINTF32X : case CFN_BUILT_IN_LLRINTF64X: case CFN_BUILT_IN_LLRINTF128X: |
| 375 | CASE_CFN_LRINTcase CFN_LRINT: case CFN_BUILT_IN_LRINTF: case CFN_BUILT_IN_LRINT : case CFN_BUILT_IN_LRINTL: |
| 376 | CASE_CFN_LRINT_FNcase CFN_BUILT_IN_LRINTF16: case CFN_BUILT_IN_LRINTF32: case CFN_BUILT_IN_LRINTF64 : case CFN_BUILT_IN_LRINTF128: case CFN_BUILT_IN_LRINTF32X: case CFN_BUILT_IN_LRINTF64X: case CFN_BUILT_IN_LRINTF128X: |
| 377 | CASE_CFN_NEARBYINTcase CFN_NEARBYINT: case CFN_BUILT_IN_NEARBYINTF: case CFN_BUILT_IN_NEARBYINT : case CFN_BUILT_IN_NEARBYINTL: |
| 378 | CASE_CFN_NEARBYINT_FNcase CFN_BUILT_IN_NEARBYINTF16: case CFN_BUILT_IN_NEARBYINTF32 : case CFN_BUILT_IN_NEARBYINTF64: case CFN_BUILT_IN_NEARBYINTF128 : case CFN_BUILT_IN_NEARBYINTF32X: case CFN_BUILT_IN_NEARBYINTF64X : case CFN_BUILT_IN_NEARBYINTF128X: |
| 379 | CASE_CFN_RINTcase CFN_RINT: case CFN_BUILT_IN_RINTF: case CFN_BUILT_IN_RINT : case CFN_BUILT_IN_RINTL: |
| 380 | CASE_CFN_RINT_FNcase CFN_BUILT_IN_RINTF16: case CFN_BUILT_IN_RINTF32: case CFN_BUILT_IN_RINTF64 : case CFN_BUILT_IN_RINTF128: case CFN_BUILT_IN_RINTF32X: case CFN_BUILT_IN_RINTF64X: case CFN_BUILT_IN_RINTF128X: |
| 381 | return !flag_rounding_mathglobal_options.x_flag_rounding_math; |
| 382 | |
| 383 | default: |
| 384 | break; |
| 385 | } |
| 386 | return false; |
| 387 | } |
| 388 | |
| 389 | /* Check whether we may negate an integer constant T without causing |
| 390 | overflow. */ |
| 391 | |
| 392 | bool |
| 393 | may_negate_without_overflow_p (const_tree t) |
| 394 | { |
| 395 | tree type; |
| 396 | |
| 397 | gcc_assert (TREE_CODE (t) == INTEGER_CST)((void)(!(((enum tree_code) (t)->base.code) == INTEGER_CST ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 397, __FUNCTION__), 0 : 0)); |
| 398 | |
| 399 | type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 399, __FUNCTION__))->typed.type); |
| 400 | if (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 400, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 401 | return false; |
| 402 | |
| 403 | return !wi::only_sign_bit_p (wi::to_wide (t)); |
| 404 | } |
| 405 | |
| 406 | /* Determine whether an expression T can be cheaply negated using |
| 407 | the function negate_expr without introducing undefined overflow. */ |
| 408 | |
| 409 | static bool |
| 410 | negate_expr_p (tree t) |
| 411 | { |
| 412 | tree type; |
| 413 | |
| 414 | if (t == 0) |
| 415 | return false; |
| 416 | |
| 417 | type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 417, __FUNCTION__))->typed.type); |
| 418 | |
| 419 | STRIP_SIGN_NOPS (t)(t) = tree_strip_sign_nop_conversions ((const_cast<union tree_node *> (((t))))); |
| 420 | switch (TREE_CODE (t)((enum tree_code) (t)->base.code)) |
| 421 | { |
| 422 | case INTEGER_CST: |
| 423 | if (INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE) && TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 423, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 424 | return true; |
| 425 | |
| 426 | /* Check that -CST will not overflow type. */ |
| 427 | return may_negate_without_overflow_p (t); |
| 428 | case BIT_NOT_EXPR: |
| 429 | return (INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE) |
| 430 | && TYPE_OVERFLOW_WRAPS (type)((((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options .x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 430, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv))); |
| 431 | |
| 432 | case FIXED_CST: |
| 433 | return true; |
| 434 | |
| 435 | case NEGATE_EXPR: |
| 436 | return !TYPE_OVERFLOW_SANITIZED (type)((((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type)->base.code) == INTEGER_TYPE) && !((((enum tree_code) (type)->base.code) == POINTER_TYPE || ((enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 436, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) && (global_options.x_flag_sanitize & SANITIZE_SI_OVERFLOW)); |
| 437 | |
| 438 | case REAL_CST: |
| 439 | /* We want to canonicalize to positive real constants. Pretend |
| 440 | that only negative ones can be easily negated. */ |
| 441 | return REAL_VALUE_NEGATIVE (TREE_REAL_CST (t))real_isneg (&((*(&(tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 441, __FUNCTION__, (REAL_CST)))->real_cst.value)))); |
| 442 | |
| 443 | case COMPLEX_CST: |
| 444 | return negate_expr_p (TREE_REALPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 444, __FUNCTION__, (COMPLEX_CST)))->complex.real)) |
| 445 | && negate_expr_p (TREE_IMAGPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 445, __FUNCTION__, (COMPLEX_CST)))->complex.imag)); |
| 446 | |
| 447 | case VECTOR_CST: |
| 448 | { |
| 449 | if (FLOAT_TYPE_P (TREE_TYPE (type))((((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE ) || ((((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->typed.type))->base.code) == COMPLEX_TYPE || (((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE )) && (((enum tree_code) (((contains_struct_check ((( (contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE ))) || TYPE_OVERFLOW_WRAPS (type)((((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options .x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 449, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv))) |
| 450 | return true; |
| 451 | |
| 452 | /* Steps don't prevent negation. */ |
| 453 | unsigned int count = vector_cst_encoded_nelts (t); |
| 454 | for (unsigned int i = 0; i < count; ++i) |
| 455 | if (!negate_expr_p (VECTOR_CST_ENCODED_ELT (t, i)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 455, __FUNCTION__, (VECTOR_CST)))->vector.elts[i]))) |
| 456 | return false; |
| 457 | |
| 458 | return true; |
| 459 | } |
| 460 | |
| 461 | case COMPLEX_EXPR: |
| 462 | return negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 462, __FUNCTION__)))))) |
| 463 | && negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 463, __FUNCTION__)))))); |
| 464 | |
| 465 | case CONJ_EXPR: |
| 466 | return negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 466, __FUNCTION__)))))); |
| 467 | |
| 468 | case PLUS_EXPR: |
| 469 | if (HONOR_SIGN_DEPENDENT_ROUNDING (type) |
| 470 | || HONOR_SIGNED_ZEROS (type) |
| 471 | || (ANY_INTEGRAL_TYPE_P (type)((((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type)->base.code) == INTEGER_TYPE) || (( ((enum tree_code) (type)->base.code) == COMPLEX_TYPE || (( (enum tree_code) (type)->base.code) == VECTOR_TYPE)) && (((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 471, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 471, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 471, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ))) |
| 472 | && ! TYPE_OVERFLOW_WRAPS (type)((((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options .x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 472, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)))) |
| 473 | return false; |
| 474 | /* -(A + B) -> (-B) - A. */ |
| 475 | if (negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 475, __FUNCTION__))))))) |
| 476 | return true; |
| 477 | /* -(A + B) -> (-A) - B. */ |
| 478 | return negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 478, __FUNCTION__)))))); |
| 479 | |
| 480 | case MINUS_EXPR: |
| 481 | /* We can't turn -(A-B) into B-A when we honor signed zeros. */ |
| 482 | return !HONOR_SIGN_DEPENDENT_ROUNDING (type) |
| 483 | && !HONOR_SIGNED_ZEROS (type) |
| 484 | && (! ANY_INTEGRAL_TYPE_P (type)((((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type)->base.code) == INTEGER_TYPE) || (( ((enum tree_code) (type)->base.code) == COMPLEX_TYPE || (( (enum tree_code) (type)->base.code) == VECTOR_TYPE)) && (((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 484, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 484, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 484, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ))) |
| 485 | || TYPE_OVERFLOW_WRAPS (type)((((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options .x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 485, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv))); |
| 486 | |
| 487 | case MULT_EXPR: |
| 488 | if (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 488, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 489 | break; |
| 490 | /* INT_MIN/n * n doesn't overflow while negating one operand it does |
| 491 | if n is a (negative) power of two. */ |
| 492 | if (INTEGRAL_TYPE_P (TREE_TYPE (t))(((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 492, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 492, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 492, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 493 | && ! TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 493, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 493, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 493, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 493, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) |
| 494 | && ! ((TREE_CODE (TREE_OPERAND (t, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 494, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 495 | && (wi::popcount |
| 496 | (wi::abs (wi::to_wide (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 496, __FUNCTION__))))))))) != 1) |
| 497 | || (TREE_CODE (TREE_OPERAND (t, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 497, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 498 | && (wi::popcount |
| 499 | (wi::abs (wi::to_wide (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 499, __FUNCTION__))))))))) != 1))) |
| 500 | break; |
| 501 | |
| 502 | /* Fall through. */ |
| 503 | |
| 504 | case RDIV_EXPR: |
| 505 | if (! HONOR_SIGN_DEPENDENT_ROUNDING (t)) |
| 506 | return negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 506, __FUNCTION__)))))) |
| 507 | || negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 507, __FUNCTION__)))))); |
| 508 | break; |
| 509 | |
| 510 | case TRUNC_DIV_EXPR: |
| 511 | case ROUND_DIV_EXPR: |
| 512 | case EXACT_DIV_EXPR: |
| 513 | if (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 513, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 514 | break; |
| 515 | /* In general we can't negate A in A / B, because if A is INT_MIN and |
| 516 | B is not 1 we change the sign of the result. */ |
| 517 | if (TREE_CODE (TREE_OPERAND (t, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 517, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 518 | && negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 518, __FUNCTION__))))))) |
| 519 | return true; |
| 520 | /* In general we can't negate B in A / B, because if A is INT_MIN and |
| 521 | B is 1, we may turn this into INT_MIN / -1 which is undefined |
| 522 | and actually traps on some architectures. */ |
| 523 | if (! ANY_INTEGRAL_TYPE_P (TREE_TYPE (t))((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) || ((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == COMPLEX_TYPE || (((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE )) && (((enum tree_code) (((contains_struct_check ((( (contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 523, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ))) |
| 524 | || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 524, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 524, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 524, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 524, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) |
| 525 | || (TREE_CODE (TREE_OPERAND (t, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 525, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 526 | && ! integer_onep (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 526, __FUNCTION__)))))))) |
| 527 | return negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 527, __FUNCTION__)))))); |
| 528 | break; |
| 529 | |
| 530 | case NOP_EXPR: |
| 531 | /* Negate -((double)float) as (double)(-float). */ |
| 532 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == REAL_TYPE) |
| 533 | { |
| 534 | tree tem = strip_float_extensions (t); |
| 535 | if (tem != t) |
| 536 | return negate_expr_p (tem); |
| 537 | } |
| 538 | break; |
| 539 | |
| 540 | case CALL_EXPR: |
| 541 | /* Negate -f(x) as f(-x). */ |
| 542 | if (negate_mathfn_p (get_call_combined_fn (t))) |
| 543 | return negate_expr_p (CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 543, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 543, __FUNCTION__)))))); |
| 544 | break; |
| 545 | |
| 546 | case RSHIFT_EXPR: |
| 547 | /* Optimize -((int)x >> 31) into (unsigned)x >> 31 for int. */ |
| 548 | if (TREE_CODE (TREE_OPERAND (t, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 548, __FUNCTION__))))))->base.code) == INTEGER_CST) |
| 549 | { |
| 550 | tree op1 = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 550, __FUNCTION__))))); |
| 551 | if (wi::to_wide (op1) == element_precision (type) - 1) |
| 552 | return true; |
| 553 | } |
| 554 | break; |
| 555 | |
| 556 | default: |
| 557 | break; |
| 558 | } |
| 559 | return false; |
| 560 | } |
| 561 | |
| 562 | /* Given T, an expression, return a folded tree for -T or NULL_TREE, if no |
| 563 | simplification is possible. |
| 564 | If negate_expr_p would return true for T, NULL_TREE will never be |
| 565 | returned. */ |
| 566 | |
| 567 | static tree |
| 568 | fold_negate_expr_1 (location_t loc, tree t) |
| 569 | { |
| 570 | tree type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 570, __FUNCTION__))->typed.type); |
| 571 | tree tem; |
| 572 | |
| 573 | switch (TREE_CODE (t)((enum tree_code) (t)->base.code)) |
| 574 | { |
| 575 | /* Convert - (~A) to A + 1. */ |
| 576 | case BIT_NOT_EXPR: |
| 577 | if (INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE)) |
| 578 | return fold_build2_loc (loc, PLUS_EXPR, type, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 578, __FUNCTION__))))), |
| 579 | build_one_cst (type)); |
| 580 | break; |
| 581 | |
| 582 | case INTEGER_CST: |
| 583 | tem = fold_negate_const (t, type); |
| 584 | if (TREE_OVERFLOW (tem)((tree_class_check ((tem), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 584, __FUNCTION__))->base.public_flag) == TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 584, __FUNCTION__))->base.public_flag) |
| 585 | || (ANY_INTEGRAL_TYPE_P (type)((((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type)->base.code) == INTEGER_TYPE) || (( ((enum tree_code) (type)->base.code) == COMPLEX_TYPE || (( (enum tree_code) (type)->base.code) == VECTOR_TYPE)) && (((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 585, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 585, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 585, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ))) |
| 586 | && !TYPE_OVERFLOW_TRAPS (type)(!(any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 586, __FUNCTION__))->base.u.bits.unsigned_flag && global_options.x_flag_trapv) |
| 587 | && TYPE_OVERFLOW_WRAPS (type)((((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options .x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 587, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv))) |
| 588 | || (flag_sanitizeglobal_options.x_flag_sanitize & SANITIZE_SI_OVERFLOW) == 0) |
| 589 | return tem; |
| 590 | break; |
| 591 | |
| 592 | case POLY_INT_CST: |
| 593 | case REAL_CST: |
| 594 | case FIXED_CST: |
| 595 | tem = fold_negate_const (t, type); |
| 596 | return tem; |
| 597 | |
| 598 | case COMPLEX_CST: |
| 599 | { |
| 600 | tree rpart = fold_negate_expr (loc, TREE_REALPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 600, __FUNCTION__, (COMPLEX_CST)))->complex.real)); |
| 601 | tree ipart = fold_negate_expr (loc, TREE_IMAGPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 601, __FUNCTION__, (COMPLEX_CST)))->complex.imag)); |
| 602 | if (rpart && ipart) |
| 603 | return build_complex (type, rpart, ipart); |
| 604 | } |
| 605 | break; |
| 606 | |
| 607 | case VECTOR_CST: |
| 608 | { |
| 609 | tree_vector_builder elts; |
| 610 | elts.new_unary_operation (type, t, true); |
| 611 | unsigned int count = elts.encoded_nelts (); |
| 612 | for (unsigned int i = 0; i < count; ++i) |
| 613 | { |
| 614 | tree elt = fold_negate_expr (loc, VECTOR_CST_ELT (t, i)vector_cst_elt (t, i)); |
| 615 | if (elt == NULL_TREE(tree) __null) |
| 616 | return NULL_TREE(tree) __null; |
| 617 | elts.quick_push (elt); |
| 618 | } |
| 619 | |
| 620 | return elts.build (); |
| 621 | } |
| 622 | |
| 623 | case COMPLEX_EXPR: |
| 624 | if (negate_expr_p (t)) |
| 625 | return fold_build2_loc (loc, COMPLEX_EXPR, type, |
| 626 | fold_negate_expr (loc, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 626, __FUNCTION__)))))), |
| 627 | fold_negate_expr (loc, TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 627, __FUNCTION__))))))); |
| 628 | break; |
| 629 | |
| 630 | case CONJ_EXPR: |
| 631 | if (negate_expr_p (t)) |
| 632 | return fold_build1_loc (loc, CONJ_EXPR, type, |
| 633 | fold_negate_expr (loc, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 633, __FUNCTION__))))))); |
| 634 | break; |
| 635 | |
| 636 | case NEGATE_EXPR: |
| 637 | if (!TYPE_OVERFLOW_SANITIZED (type)((((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type)->base.code) == INTEGER_TYPE) && !((((enum tree_code) (type)->base.code) == POINTER_TYPE || ((enum tree_code) (type)->base.code) == REFERENCE_TYPE) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 637, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) && (global_options.x_flag_sanitize & SANITIZE_SI_OVERFLOW))) |
| 638 | return TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 638, __FUNCTION__))))); |
| 639 | break; |
| 640 | |
| 641 | case PLUS_EXPR: |
| 642 | if (!HONOR_SIGN_DEPENDENT_ROUNDING (type) |
| 643 | && !HONOR_SIGNED_ZEROS (type)) |
| 644 | { |
| 645 | /* -(A + B) -> (-B) - A. */ |
| 646 | if (negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 646, __FUNCTION__))))))) |
| 647 | { |
| 648 | tem = negate_expr (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 648, __FUNCTION__)))))); |
| 649 | return fold_build2_loc (loc, MINUS_EXPR, type, |
| 650 | tem, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 650, __FUNCTION__)))))); |
| 651 | } |
| 652 | |
| 653 | /* -(A + B) -> (-A) - B. */ |
| 654 | if (negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 654, __FUNCTION__))))))) |
| 655 | { |
| 656 | tem = negate_expr (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 656, __FUNCTION__)))))); |
| 657 | return fold_build2_loc (loc, MINUS_EXPR, type, |
| 658 | tem, TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 658, __FUNCTION__)))))); |
| 659 | } |
| 660 | } |
| 661 | break; |
| 662 | |
| 663 | case MINUS_EXPR: |
| 664 | /* - (A - B) -> B - A */ |
| 665 | if (!HONOR_SIGN_DEPENDENT_ROUNDING (type) |
| 666 | && !HONOR_SIGNED_ZEROS (type)) |
| 667 | return fold_build2_loc (loc, MINUS_EXPR, type, |
| 668 | TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 668, __FUNCTION__))))), TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 668, __FUNCTION__)))))); |
| 669 | break; |
| 670 | |
| 671 | case MULT_EXPR: |
| 672 | if (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 672, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 673 | break; |
| 674 | |
| 675 | /* Fall through. */ |
| 676 | |
| 677 | case RDIV_EXPR: |
| 678 | if (! HONOR_SIGN_DEPENDENT_ROUNDING (type)) |
| 679 | { |
| 680 | tem = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 680, __FUNCTION__))))); |
| 681 | if (negate_expr_p (tem)) |
| 682 | return fold_build2_loc (loc, TREE_CODE (t)((enum tree_code) (t)->base.code), type, |
| 683 | TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 683, __FUNCTION__))))), negate_expr (tem)); |
| 684 | tem = TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 684, __FUNCTION__))))); |
| 685 | if (negate_expr_p (tem)) |
| 686 | return fold_build2_loc (loc, TREE_CODE (t)((enum tree_code) (t)->base.code), type, |
| 687 | negate_expr (tem), TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 687, __FUNCTION__)))))); |
| 688 | } |
| 689 | break; |
| 690 | |
| 691 | case TRUNC_DIV_EXPR: |
| 692 | case ROUND_DIV_EXPR: |
| 693 | case EXACT_DIV_EXPR: |
| 694 | if (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 694, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 695 | break; |
| 696 | /* In general we can't negate A in A / B, because if A is INT_MIN and |
| 697 | B is not 1 we change the sign of the result. */ |
| 698 | if (TREE_CODE (TREE_OPERAND (t, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 698, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 699 | && negate_expr_p (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 699, __FUNCTION__))))))) |
| 700 | return fold_build2_loc (loc, TREE_CODE (t)((enum tree_code) (t)->base.code), type, |
| 701 | negate_expr (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 701, __FUNCTION__)))))), |
| 702 | TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 702, __FUNCTION__)))))); |
| 703 | /* In general we can't negate B in A / B, because if A is INT_MIN and |
| 704 | B is 1, we may turn this into INT_MIN / -1 which is undefined |
| 705 | and actually traps on some architectures. */ |
| 706 | if ((! ANY_INTEGRAL_TYPE_P (TREE_TYPE (t))((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) || ((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == COMPLEX_TYPE || (((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE )) && (((enum tree_code) (((contains_struct_check ((( (contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 706, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ))) |
| 707 | || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))((((enum tree_code) (((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 707, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 707, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) ? global_options.x_flag_wrapv_pointer : ((any_integral_type_check ((((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 707, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 707, __FUNCTION__))->base.u.bits.unsigned_flag || global_options .x_flag_wrapv)) |
| 708 | || (TREE_CODE (TREE_OPERAND (t, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 708, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 709 | && ! integer_onep (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 709, __FUNCTION__)))))))) |
| 710 | && negate_expr_p (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 710, __FUNCTION__))))))) |
| 711 | return fold_build2_loc (loc, TREE_CODE (t)((enum tree_code) (t)->base.code), type, |
| 712 | TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 712, __FUNCTION__))))), |
| 713 | negate_expr (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 713, __FUNCTION__))))))); |
| 714 | break; |
| 715 | |
| 716 | case NOP_EXPR: |
| 717 | /* Convert -((double)float) into (double)(-float). */ |
| 718 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == REAL_TYPE) |
| 719 | { |
| 720 | tem = strip_float_extensions (t); |
| 721 | if (tem != t && negate_expr_p (tem)) |
| 722 | return fold_convert_loc (loc, type, negate_expr (tem)); |
| 723 | } |
| 724 | break; |
| 725 | |
| 726 | case CALL_EXPR: |
| 727 | /* Negate -f(x) as f(-x). */ |
| 728 | if (negate_mathfn_p (get_call_combined_fn (t)) |
| 729 | && negate_expr_p (CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 729, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 729, __FUNCTION__))))))) |
| 730 | { |
| 731 | tree fndecl, arg; |
| 732 | |
| 733 | fndecl = get_callee_fndecl (t); |
| 734 | arg = negate_expr (CALL_EXPR_ARG (t, 0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 734, __FUNCTION__, (CALL_EXPR)))), ((0) + 3), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 734, __FUNCTION__)))))); |
| 735 | return build_call_expr_loc (loc, fndecl, 1, arg); |
| 736 | } |
| 737 | break; |
| 738 | |
| 739 | case RSHIFT_EXPR: |
| 740 | /* Optimize -((int)x >> 31) into (unsigned)x >> 31 for int. */ |
| 741 | if (TREE_CODE (TREE_OPERAND (t, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 741, __FUNCTION__))))))->base.code) == INTEGER_CST) |
| 742 | { |
| 743 | tree op1 = TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 743, __FUNCTION__))))); |
| 744 | if (wi::to_wide (op1) == element_precision (type) - 1) |
| 745 | { |
| 746 | tree ntype = TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 746, __FUNCTION__))->base.u.bits.unsigned_flag) |
| 747 | ? signed_type_for (type) |
| 748 | : unsigned_type_for (type); |
| 749 | tree temp = fold_convert_loc (loc, ntype, TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 749, __FUNCTION__)))))); |
| 750 | temp = fold_build2_loc (loc, RSHIFT_EXPR, ntype, temp, op1); |
| 751 | return fold_convert_loc (loc, type, temp); |
| 752 | } |
| 753 | } |
| 754 | break; |
| 755 | |
| 756 | default: |
| 757 | break; |
| 758 | } |
| 759 | |
| 760 | return NULL_TREE(tree) __null; |
| 761 | } |
| 762 | |
| 763 | /* A wrapper for fold_negate_expr_1. */ |
| 764 | |
| 765 | static tree |
| 766 | fold_negate_expr (location_t loc, tree t) |
| 767 | { |
| 768 | tree type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 768, __FUNCTION__))->typed.type); |
| 769 | STRIP_SIGN_NOPS (t)(t) = tree_strip_sign_nop_conversions ((const_cast<union tree_node *> (((t))))); |
| 770 | tree tem = fold_negate_expr_1 (loc, t); |
| 771 | if (tem == NULL_TREE(tree) __null) |
| 772 | return NULL_TREE(tree) __null; |
| 773 | return fold_convert_loc (loc, type, tem); |
| 774 | } |
| 775 | |
| 776 | /* Like fold_negate_expr, but return a NEGATE_EXPR tree, if T cannot be |
| 777 | negated in a simpler way. Also allow for T to be NULL_TREE, in which case |
| 778 | return NULL_TREE. */ |
| 779 | |
| 780 | static tree |
| 781 | negate_expr (tree t) |
| 782 | { |
| 783 | tree type, tem; |
| 784 | location_t loc; |
| 785 | |
| 786 | if (t == NULL_TREE(tree) __null) |
| 787 | return NULL_TREE(tree) __null; |
| 788 | |
| 789 | 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)); |
| 790 | type = TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 790, __FUNCTION__))->typed.type); |
| 791 | STRIP_SIGN_NOPS (t)(t) = tree_strip_sign_nop_conversions ((const_cast<union tree_node *> (((t))))); |
| 792 | |
| 793 | tem = fold_negate_expr (loc, t); |
| 794 | if (!tem) |
| 795 | tem = build1_loc (loc, NEGATE_EXPR, TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 795, __FUNCTION__))->typed.type), t); |
| 796 | return fold_convert_loc (loc, type, tem); |
| 797 | } |
| 798 | |
| 799 | /* Split a tree IN into a constant, literal and variable parts that could be |
| 800 | combined with CODE to make IN. "constant" means an expression with |
| 801 | TREE_CONSTANT but that isn't an actual constant. CODE must be a |
| 802 | commutative arithmetic operation. Store the constant part into *CONP, |
| 803 | the literal in *LITP and return the variable part. If a part isn't |
| 804 | present, set it to null. If the tree does not decompose in this way, |
| 805 | return the entire tree as the variable part and the other parts as null. |
| 806 | |
| 807 | If CODE is PLUS_EXPR we also split trees that use MINUS_EXPR. In that |
| 808 | case, we negate an operand that was subtracted. Except if it is a |
| 809 | literal for which we use *MINUS_LITP instead. |
| 810 | |
| 811 | If NEGATE_P is true, we are negating all of IN, again except a literal |
| 812 | for which we use *MINUS_LITP instead. If a variable part is of pointer |
| 813 | type, it is negated after converting to TYPE. This prevents us from |
| 814 | generating illegal MINUS pointer expression. LOC is the location of |
| 815 | the converted variable part. |
| 816 | |
| 817 | If IN is itself a literal or constant, return it as appropriate. |
| 818 | |
| 819 | Note that we do not guarantee that any of the three values will be the |
| 820 | same type as IN, but they will have the same signedness and mode. */ |
| 821 | |
| 822 | static tree |
| 823 | split_tree (tree in, tree type, enum tree_code code, |
| 824 | tree *minus_varp, tree *conp, tree *minus_conp, |
| 825 | tree *litp, tree *minus_litp, int negate_p) |
| 826 | { |
| 827 | tree var = 0; |
| 828 | *minus_varp = 0; |
| 829 | *conp = 0; |
| 830 | *minus_conp = 0; |
| 831 | *litp = 0; |
| 832 | *minus_litp = 0; |
| 833 | |
| 834 | /* Strip any conversions that don't change the machine mode or signedness. */ |
| 835 | STRIP_SIGN_NOPS (in)(in) = tree_strip_sign_nop_conversions ((const_cast<union tree_node *> (((in))))); |
| 836 | |
| 837 | if (TREE_CODE (in)((enum tree_code) (in)->base.code) == INTEGER_CST || TREE_CODE (in)((enum tree_code) (in)->base.code) == REAL_CST |
| 838 | || TREE_CODE (in)((enum tree_code) (in)->base.code) == FIXED_CST) |
| 839 | *litp = in; |
| 840 | else if (TREE_CODE (in)((enum tree_code) (in)->base.code) == code |
| 841 | || ((! FLOAT_TYPE_P (TREE_TYPE (in))((((enum tree_code) (((contains_struct_check ((in), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 841, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE ) || ((((enum tree_code) (((contains_struct_check ((in), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 841, __FUNCTION__))->typed.type))->base.code) == COMPLEX_TYPE || (((enum tree_code) (((contains_struct_check ((in), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 841, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE )) && (((enum tree_code) (((contains_struct_check ((( (contains_struct_check ((in), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 841, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 841, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE ))) || flag_associative_mathglobal_options.x_flag_associative_math) |
| 842 | && ! SAT_FIXED_POINT_TYPE_P (TREE_TYPE (in))(((enum tree_code) (((contains_struct_check ((in), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 842, __FUNCTION__))->typed.type))->base.code) == FIXED_POINT_TYPE && ((tree_not_check4 ((((contains_struct_check ((in) , (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 842, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 842, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)) |
| 843 | /* We can associate addition and subtraction together (even |
| 844 | though the C standard doesn't say so) for integers because |
| 845 | the value is not affected. For reals, the value might be |
| 846 | affected, so we can't. */ |
| 847 | && ((code == PLUS_EXPR && TREE_CODE (in)((enum tree_code) (in)->base.code) == POINTER_PLUS_EXPR) |
| 848 | || (code == PLUS_EXPR && TREE_CODE (in)((enum tree_code) (in)->base.code) == MINUS_EXPR) |
| 849 | || (code == MINUS_EXPR |
| 850 | && (TREE_CODE (in)((enum tree_code) (in)->base.code) == PLUS_EXPR |
| 851 | || TREE_CODE (in)((enum tree_code) (in)->base.code) == POINTER_PLUS_EXPR))))) |
| 852 | { |
| 853 | tree op0 = TREE_OPERAND (in, 0)(*((const_cast<tree*> (tree_operand_check ((in), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 853, __FUNCTION__))))); |
| 854 | tree op1 = TREE_OPERAND (in, 1)(*((const_cast<tree*> (tree_operand_check ((in), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 854, __FUNCTION__))))); |
| 855 | int neg1_p = TREE_CODE (in)((enum tree_code) (in)->base.code) == MINUS_EXPR; |
| 856 | int neg_litp_p = 0, neg_conp_p = 0, neg_var_p = 0; |
| 857 | |
| 858 | /* First see if either of the operands is a literal, then a constant. */ |
| 859 | if (TREE_CODE (op0)((enum tree_code) (op0)->base.code) == INTEGER_CST || TREE_CODE (op0)((enum tree_code) (op0)->base.code) == REAL_CST |
| 860 | || TREE_CODE (op0)((enum tree_code) (op0)->base.code) == FIXED_CST) |
| 861 | *litp = op0, op0 = 0; |
| 862 | else if (TREE_CODE (op1)((enum tree_code) (op1)->base.code) == INTEGER_CST || TREE_CODE (op1)((enum tree_code) (op1)->base.code) == REAL_CST |
| 863 | || TREE_CODE (op1)((enum tree_code) (op1)->base.code) == FIXED_CST) |
| 864 | *litp = op1, neg_litp_p = neg1_p, op1 = 0; |
| 865 | |
| 866 | if (op0 != 0 && TREE_CONSTANT (op0)((non_type_check ((op0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 866, __FUNCTION__))->base.constant_flag)) |
| 867 | *conp = op0, op0 = 0; |
| 868 | else if (op1 != 0 && TREE_CONSTANT (op1)((non_type_check ((op1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 868, __FUNCTION__))->base.constant_flag)) |
| 869 | *conp = op1, neg_conp_p = neg1_p, op1 = 0; |
| 870 | |
| 871 | /* If we haven't dealt with either operand, this is not a case we can |
| 872 | decompose. Otherwise, VAR is either of the ones remaining, if any. */ |
| 873 | if (op0 != 0 && op1 != 0) |
| 874 | var = in; |
| 875 | else if (op0 != 0) |
| 876 | var = op0; |
| 877 | else |
| 878 | var = op1, neg_var_p = neg1_p; |
| 879 | |
| 880 | /* Now do any needed negations. */ |
| 881 | if (neg_litp_p) |
| 882 | *minus_litp = *litp, *litp = 0; |
| 883 | if (neg_conp_p && *conp) |
| 884 | *minus_conp = *conp, *conp = 0; |
| 885 | if (neg_var_p && var) |
| 886 | *minus_varp = var, var = 0; |
| 887 | } |
| 888 | else if (TREE_CONSTANT (in)((non_type_check ((in), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 888, __FUNCTION__))->base.constant_flag)) |
| 889 | *conp = in; |
| 890 | else if (TREE_CODE (in)((enum tree_code) (in)->base.code) == BIT_NOT_EXPR |
| 891 | && code == PLUS_EXPR) |
| 892 | { |
| 893 | /* -1 - X is folded to ~X, undo that here. Do _not_ do this |
| 894 | when IN is constant. */ |
| 895 | *litp = build_minus_one_cst (type); |
| 896 | *minus_varp = TREE_OPERAND (in, 0)(*((const_cast<tree*> (tree_operand_check ((in), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 896, __FUNCTION__))))); |
| 897 | } |
| 898 | else |
| 899 | var = in; |
| 900 | |
| 901 | if (negate_p) |
| 902 | { |
| 903 | if (*litp) |
| 904 | *minus_litp = *litp, *litp = 0; |
| 905 | else if (*minus_litp) |
| 906 | *litp = *minus_litp, *minus_litp = 0; |
| 907 | if (*conp) |
| 908 | *minus_conp = *conp, *conp = 0; |
| 909 | else if (*minus_conp) |
| 910 | *conp = *minus_conp, *minus_conp = 0; |
| 911 | if (var) |
| 912 | *minus_varp = var, var = 0; |
| 913 | else if (*minus_varp) |
| 914 | var = *minus_varp, *minus_varp = 0; |
| 915 | } |
| 916 | |
| 917 | if (*litp |
| 918 | && TREE_OVERFLOW_P (*litp)((tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (*litp)->base.code))] == tcc_constant) && ((tree_class_check ((*litp), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 918, __FUNCTION__))->base.public_flag))) |
| 919 | *litp = drop_tree_overflow (*litp); |
| 920 | if (*minus_litp |
| 921 | && TREE_OVERFLOW_P (*minus_litp)((tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code) (*minus_litp)->base.code))] == tcc_constant) && ((tree_class_check ((*minus_litp), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 921, __FUNCTION__))->base.public_flag))) |
| 922 | *minus_litp = drop_tree_overflow (*minus_litp); |
| 923 | |
| 924 | return var; |
| 925 | } |
| 926 | |
| 927 | /* Re-associate trees split by the above function. T1 and T2 are |
| 928 | either expressions to associate or null. Return the new |
| 929 | expression, if any. LOC is the location of the new expression. If |
| 930 | we build an operation, do it in TYPE and with CODE. */ |
| 931 | |
| 932 | static tree |
| 933 | associate_trees (location_t loc, tree t1, tree t2, enum tree_code code, tree type) |
| 934 | { |
| 935 | if (t1 == 0) |
| 936 | { |
| 937 | gcc_assert (t2 == 0 || code != MINUS_EXPR)((void)(!(t2 == 0 || code != MINUS_EXPR) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 937, __FUNCTION__), 0 : 0)); |
| 938 | return t2; |
| 939 | } |
| 940 | else if (t2 == 0) |
| 941 | return t1; |
| 942 | |
| 943 | /* If either input is CODE, a PLUS_EXPR, or a MINUS_EXPR, don't |
| 944 | try to fold this since we will have infinite recursion. But do |
| 945 | deal with any NEGATE_EXPRs. */ |
| 946 | if (TREE_CODE (t1)((enum tree_code) (t1)->base.code) == code || TREE_CODE (t2)((enum tree_code) (t2)->base.code) == code |
| 947 | || TREE_CODE (t1)((enum tree_code) (t1)->base.code) == PLUS_EXPR || TREE_CODE (t2)((enum tree_code) (t2)->base.code) == PLUS_EXPR |
| 948 | || TREE_CODE (t1)((enum tree_code) (t1)->base.code) == MINUS_EXPR || TREE_CODE (t2)((enum tree_code) (t2)->base.code) == MINUS_EXPR) |
| 949 | { |
| 950 | if (code == PLUS_EXPR) |
| 951 | { |
| 952 | if (TREE_CODE (t1)((enum tree_code) (t1)->base.code) == NEGATE_EXPR) |
| 953 | return build2_loc (loc, MINUS_EXPR, type, |
| 954 | fold_convert_loc (loc, type, t2), |
| 955 | fold_convert_loc (loc, type, |
| 956 | TREE_OPERAND (t1, 0)(*((const_cast<tree*> (tree_operand_check ((t1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 956, __FUNCTION__))))))); |
| 957 | else if (TREE_CODE (t2)((enum tree_code) (t2)->base.code) == NEGATE_EXPR) |
| 958 | return build2_loc (loc, MINUS_EXPR, type, |
| 959 | fold_convert_loc (loc, type, t1), |
| 960 | fold_convert_loc (loc, type, |
| 961 | TREE_OPERAND (t2, 0)(*((const_cast<tree*> (tree_operand_check ((t2), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 961, __FUNCTION__))))))); |
| 962 | else if (integer_zerop (t2)) |
| 963 | return fold_convert_loc (loc, type, t1); |
| 964 | } |
| 965 | else if (code == MINUS_EXPR) |
| 966 | { |
| 967 | if (integer_zerop (t2)) |
| 968 | return fold_convert_loc (loc, type, t1); |
| 969 | } |
| 970 | |
| 971 | return build2_loc (loc, code, type, fold_convert_loc (loc, type, t1), |
| 972 | fold_convert_loc (loc, type, t2)); |
| 973 | } |
| 974 | |
| 975 | return fold_build2_loc (loc, code, type, fold_convert_loc (loc, type, t1), |
| 976 | fold_convert_loc (loc, type, t2)); |
| 977 | } |
| 978 | |
| 979 | /* Check whether TYPE1 and TYPE2 are equivalent integer types, suitable |
| 980 | for use in int_const_binop, size_binop and size_diffop. */ |
| 981 | |
| 982 | static bool |
| 983 | int_binop_types_match_p (enum tree_code code, const_tree type1, const_tree type2) |
| 984 | { |
| 985 | if (!INTEGRAL_TYPE_P (type1)(((enum tree_code) (type1)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type1)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type1)->base.code) == INTEGER_TYPE) && !POINTER_TYPE_P (type1)(((enum tree_code) (type1)->base.code) == POINTER_TYPE || ( (enum tree_code) (type1)->base.code) == REFERENCE_TYPE)) |
| 986 | return false; |
| 987 | if (!INTEGRAL_TYPE_P (type2)(((enum tree_code) (type2)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (type2)->base.code) == BOOLEAN_TYPE || ( (enum tree_code) (type2)->base.code) == INTEGER_TYPE) && !POINTER_TYPE_P (type2)(((enum tree_code) (type2)->base.code) == POINTER_TYPE || ( (enum tree_code) (type2)->base.code) == REFERENCE_TYPE)) |
| 988 | return false; |
| 989 | |
| 990 | switch (code) |
| 991 | { |
| 992 | case LSHIFT_EXPR: |
| 993 | case RSHIFT_EXPR: |
| 994 | case LROTATE_EXPR: |
| 995 | case RROTATE_EXPR: |
| 996 | return true; |
| 997 | |
| 998 | default: |
| 999 | break; |
| 1000 | } |
| 1001 | |
| 1002 | return TYPE_UNSIGNED (type1)((tree_class_check ((type1), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1002, __FUNCTION__))->base.u.bits.unsigned_flag) == TYPE_UNSIGNED (type2)((tree_class_check ((type2), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1002, __FUNCTION__))->base.u.bits.unsigned_flag) |
| 1003 | && TYPE_PRECISION (type1)((tree_class_check ((type1), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1003, __FUNCTION__))->type_common.precision) == TYPE_PRECISION (type2)((tree_class_check ((type2), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1003, __FUNCTION__))->type_common.precision) |
| 1004 | && TYPE_MODE (type1)((((enum tree_code) ((tree_class_check ((type1), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1004, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type1) : (type1)->type_common.mode) == TYPE_MODE (type2)((((enum tree_code) ((tree_class_check ((type2), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1004, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type2) : (type2)->type_common.mode); |
| 1005 | } |
| 1006 | |
| 1007 | /* Combine two wide ints ARG1 and ARG2 under operation CODE to produce |
| 1008 | a new constant in RES. Return FALSE if we don't know how to |
| 1009 | evaluate CODE at compile-time. */ |
| 1010 | |
| 1011 | bool |
| 1012 | wide_int_binop (wide_int &res, |
| 1013 | enum tree_code code, const wide_int &arg1, const wide_int &arg2, |
| 1014 | signop sign, wi::overflow_type *overflow) |
| 1015 | { |
| 1016 | wide_int tmp; |
| 1017 | *overflow = wi::OVF_NONE; |
| 1018 | switch (code) |
| 1019 | { |
| 1020 | case BIT_IOR_EXPR: |
| 1021 | res = wi::bit_or (arg1, arg2); |
| 1022 | break; |
| 1023 | |
| 1024 | case BIT_XOR_EXPR: |
| 1025 | res = wi::bit_xor (arg1, arg2); |
| 1026 | break; |
| 1027 | |
| 1028 | case BIT_AND_EXPR: |
| 1029 | res = wi::bit_and (arg1, arg2); |
| 1030 | break; |
| 1031 | |
| 1032 | case LSHIFT_EXPR: |
| 1033 | if (wi::neg_p (arg2)) |
| 1034 | return false; |
| 1035 | res = wi::lshift (arg1, arg2); |
| 1036 | break; |
| 1037 | |
| 1038 | case RSHIFT_EXPR: |
| 1039 | if (wi::neg_p (arg2)) |
| 1040 | return false; |
| 1041 | /* It's unclear from the C standard whether shifts can overflow. |
| 1042 | The following code ignores overflow; perhaps a C standard |
| 1043 | interpretation ruling is needed. */ |
| 1044 | res = wi::rshift (arg1, arg2, sign); |
| 1045 | break; |
| 1046 | |
| 1047 | case RROTATE_EXPR: |
| 1048 | case LROTATE_EXPR: |
| 1049 | if (wi::neg_p (arg2)) |
| 1050 | { |
| 1051 | tmp = -arg2; |
| 1052 | if (code == RROTATE_EXPR) |
| 1053 | code = LROTATE_EXPR; |
| 1054 | else |
| 1055 | code = RROTATE_EXPR; |
| 1056 | } |
| 1057 | else |
| 1058 | tmp = arg2; |
| 1059 | |
| 1060 | if (code == RROTATE_EXPR) |
| 1061 | res = wi::rrotate (arg1, tmp); |
| 1062 | else |
| 1063 | res = wi::lrotate (arg1, tmp); |
| 1064 | break; |
| 1065 | |
| 1066 | case PLUS_EXPR: |
| 1067 | res = wi::add (arg1, arg2, sign, overflow); |
| 1068 | break; |
| 1069 | |
| 1070 | case MINUS_EXPR: |
| 1071 | res = wi::sub (arg1, arg2, sign, overflow); |
| 1072 | break; |
| 1073 | |
| 1074 | case MULT_EXPR: |
| 1075 | res = wi::mul (arg1, arg2, sign, overflow); |
| 1076 | break; |
| 1077 | |
| 1078 | case MULT_HIGHPART_EXPR: |
| 1079 | res = wi::mul_high (arg1, arg2, sign); |
| 1080 | break; |
| 1081 | |
| 1082 | case TRUNC_DIV_EXPR: |
| 1083 | case EXACT_DIV_EXPR: |
| 1084 | if (arg2 == 0) |
| 1085 | return false; |
| 1086 | res = wi::div_trunc (arg1, arg2, sign, overflow); |
| 1087 | break; |
| 1088 | |
| 1089 | case FLOOR_DIV_EXPR: |
| 1090 | if (arg2 == 0) |
| 1091 | return false; |
| 1092 | res = wi::div_floor (arg1, arg2, sign, overflow); |
| 1093 | break; |
| 1094 | |
| 1095 | case CEIL_DIV_EXPR: |
| 1096 | if (arg2 == 0) |
| 1097 | return false; |
| 1098 | res = wi::div_ceil (arg1, arg2, sign, overflow); |
| 1099 | break; |
| 1100 | |
| 1101 | case ROUND_DIV_EXPR: |
| 1102 | if (arg2 == 0) |
| 1103 | return false; |
| 1104 | res = wi::div_round (arg1, arg2, sign, overflow); |
| 1105 | break; |
| 1106 | |
| 1107 | case TRUNC_MOD_EXPR: |
| 1108 | if (arg2 == 0) |
| 1109 | return false; |
| 1110 | res = wi::mod_trunc (arg1, arg2, sign, overflow); |
| 1111 | break; |
| 1112 | |
| 1113 | case FLOOR_MOD_EXPR: |
| 1114 | if (arg2 == 0) |
| 1115 | return false; |
| 1116 | res = wi::mod_floor (arg1, arg2, sign, overflow); |
| 1117 | break; |
| 1118 | |
| 1119 | case CEIL_MOD_EXPR: |
| 1120 | if (arg2 == 0) |
| 1121 | return false; |
| 1122 | res = wi::mod_ceil (arg1, arg2, sign, overflow); |
| 1123 | break; |
| 1124 | |
| 1125 | case ROUND_MOD_EXPR: |
| 1126 | if (arg2 == 0) |
| 1127 | return false; |
| 1128 | res = wi::mod_round (arg1, arg2, sign, overflow); |
| 1129 | break; |
| 1130 | |
| 1131 | case MIN_EXPR: |
| 1132 | res = wi::min (arg1, arg2, sign); |
| 1133 | break; |
| 1134 | |
| 1135 | case MAX_EXPR: |
| 1136 | res = wi::max (arg1, arg2, sign); |
| 1137 | break; |
| 1138 | |
| 1139 | default: |
| 1140 | return false; |
| 1141 | } |
| 1142 | return true; |
| 1143 | } |
| 1144 | |
| 1145 | /* Combine two poly int's ARG1 and ARG2 under operation CODE to |
| 1146 | produce a new constant in RES. Return FALSE if we don't know how |
| 1147 | to evaluate CODE at compile-time. */ |
| 1148 | |
| 1149 | static bool |
| 1150 | poly_int_binop (poly_wide_int &res, enum tree_code code, |
| 1151 | const_tree arg1, const_tree arg2, |
| 1152 | signop sign, wi::overflow_type *overflow) |
| 1153 | { |
| 1154 | gcc_assert (NUM_POLY_INT_COEFFS != 1)((void)(!(1 != 1) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1154, __FUNCTION__), 0 : 0)); |
| 1155 | gcc_assert (poly_int_tree_p (arg1) && poly_int_tree_p (arg2))((void)(!(poly_int_tree_p (arg1) && poly_int_tree_p ( arg2)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1155, __FUNCTION__), 0 : 0)); |
| 1156 | switch (code) |
| 1157 | { |
| 1158 | case PLUS_EXPR: |
| 1159 | res = wi::add (wi::to_poly_wide (arg1), |
| 1160 | wi::to_poly_wide (arg2), sign, overflow); |
| 1161 | break; |
| 1162 | |
| 1163 | case MINUS_EXPR: |
| 1164 | res = wi::sub (wi::to_poly_wide (arg1), |
| 1165 | wi::to_poly_wide (arg2), sign, overflow); |
| 1166 | break; |
| 1167 | |
| 1168 | case MULT_EXPR: |
| 1169 | if (TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == INTEGER_CST) |
| 1170 | res = wi::mul (wi::to_poly_wide (arg1), |
| 1171 | wi::to_wide (arg2), sign, overflow); |
| 1172 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 1173 | res = wi::mul (wi::to_poly_wide (arg2), |
| 1174 | wi::to_wide (arg1), sign, overflow); |
| 1175 | else |
| 1176 | return NULL_TREE(tree) __null; |
| 1177 | break; |
| 1178 | |
| 1179 | case LSHIFT_EXPR: |
| 1180 | if (TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == INTEGER_CST) |
| 1181 | res = wi::to_poly_wide (arg1) << wi::to_wide (arg2); |
| 1182 | else |
| 1183 | return false; |
| 1184 | break; |
| 1185 | |
| 1186 | case BIT_IOR_EXPR: |
| 1187 | if (TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) != INTEGER_CST |
| 1188 | || !can_ior_p (wi::to_poly_wide (arg1), wi::to_wide (arg2), |
| 1189 | &res)) |
| 1190 | return false; |
| 1191 | break; |
| 1192 | |
| 1193 | default: |
| 1194 | return false; |
| 1195 | } |
| 1196 | return true; |
| 1197 | } |
| 1198 | |
| 1199 | /* Combine two integer constants ARG1 and ARG2 under operation CODE to |
| 1200 | produce a new constant. Return NULL_TREE if we don't know how to |
| 1201 | evaluate CODE at compile-time. */ |
| 1202 | |
| 1203 | tree |
| 1204 | int_const_binop (enum tree_code code, const_tree arg1, const_tree arg2, |
| 1205 | int overflowable) |
| 1206 | { |
| 1207 | poly_wide_int poly_res; |
| 1208 | tree type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1208, __FUNCTION__))->typed.type); |
| 1209 | signop sign = TYPE_SIGN (type)((signop) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1209, __FUNCTION__))->base.u.bits.unsigned_flag)); |
| 1210 | wi::overflow_type overflow = wi::OVF_NONE; |
| 1211 | |
| 1212 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == INTEGER_CST) |
| 1213 | { |
| 1214 | wide_int warg1 = wi::to_wide (arg1), res; |
| 1215 | wide_int warg2 = wi::to_wide (arg2, TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1215, __FUNCTION__))->type_common.precision)); |
| 1216 | if (!wide_int_binop (res, code, warg1, warg2, sign, &overflow)) |
| 1217 | return NULL_TREE(tree) __null; |
| 1218 | poly_res = res; |
| 1219 | } |
| 1220 | else if (!poly_int_tree_p (arg1) |
| 1221 | || !poly_int_tree_p (arg2) |
| 1222 | || !poly_int_binop (poly_res, code, arg1, arg2, sign, &overflow)) |
| 1223 | return NULL_TREE(tree) __null; |
| 1224 | return force_fit_type (type, poly_res, overflowable, |
| 1225 | (((sign == SIGNED || overflowable == -1) |
| 1226 | && overflow) |
| 1227 | | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1227, __FUNCTION__))->base.public_flag) | TREE_OVERFLOW (arg2)((tree_class_check ((arg2), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1227, __FUNCTION__))->base.public_flag))); |
| 1228 | } |
| 1229 | |
| 1230 | /* Return true if binary operation OP distributes over addition in operand |
| 1231 | OPNO, with the other operand being held constant. OPNO counts from 1. */ |
| 1232 | |
| 1233 | static bool |
| 1234 | distributes_over_addition_p (tree_code op, int opno) |
| 1235 | { |
| 1236 | switch (op) |
| 1237 | { |
| 1238 | case PLUS_EXPR: |
| 1239 | case MINUS_EXPR: |
| 1240 | case MULT_EXPR: |
| 1241 | return true; |
| 1242 | |
| 1243 | case LSHIFT_EXPR: |
| 1244 | return opno == 1; |
| 1245 | |
| 1246 | default: |
| 1247 | return false; |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | /* Combine two constants ARG1 and ARG2 under operation CODE to produce a new |
| 1252 | constant. We assume ARG1 and ARG2 have the same data type, or at least |
| 1253 | are the same kind of constant and the same machine mode. Return zero if |
| 1254 | combining the constants is not allowed in the current operating mode. */ |
| 1255 | |
| 1256 | static tree |
| 1257 | const_binop (enum tree_code code, tree arg1, tree arg2) |
| 1258 | { |
| 1259 | /* Sanity check for the recursive cases. */ |
| 1260 | if (!arg1 || !arg2) |
| 1261 | return NULL_TREE(tree) __null; |
| 1262 | |
| 1263 | STRIP_NOPS (arg1)(arg1) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg1))))); |
| 1264 | STRIP_NOPS (arg2)(arg2) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg2))))); |
| 1265 | |
| 1266 | if (poly_int_tree_p (arg1) && poly_int_tree_p (arg2)) |
| 1267 | { |
| 1268 | if (code == POINTER_PLUS_EXPR) |
| 1269 | return int_const_binop (PLUS_EXPR, |
| 1270 | arg1, fold_convert (TREE_TYPE (arg1), arg2)fold_convert_loc (((location_t) 0), ((contains_struct_check ( (arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1270, __FUNCTION__))->typed.type), arg2)); |
| 1271 | |
| 1272 | return int_const_binop (code, arg1, arg2); |
| 1273 | } |
| 1274 | |
| 1275 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == REAL_CST && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == REAL_CST) |
| 1276 | { |
| 1277 | machine_mode mode; |
| 1278 | REAL_VALUE_TYPEstruct real_value d1; |
| 1279 | REAL_VALUE_TYPEstruct real_value d2; |
| 1280 | REAL_VALUE_TYPEstruct real_value value; |
| 1281 | REAL_VALUE_TYPEstruct real_value result; |
| 1282 | bool inexact; |
| 1283 | tree t, type; |
| 1284 | |
| 1285 | /* The following codes are handled by real_arithmetic. */ |
| 1286 | switch (code) |
| 1287 | { |
| 1288 | case PLUS_EXPR: |
| 1289 | case MINUS_EXPR: |
| 1290 | case MULT_EXPR: |
| 1291 | case RDIV_EXPR: |
| 1292 | case MIN_EXPR: |
| 1293 | case MAX_EXPR: |
| 1294 | break; |
| 1295 | |
| 1296 | default: |
| 1297 | return NULL_TREE(tree) __null; |
| 1298 | } |
| 1299 | |
| 1300 | d1 = TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1300, __FUNCTION__, (REAL_CST)))->real_cst.value)); |
| 1301 | d2 = TREE_REAL_CST (arg2)(*(&(tree_check ((arg2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1301, __FUNCTION__, (REAL_CST)))->real_cst.value)); |
| 1302 | |
| 1303 | type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1303, __FUNCTION__))->typed.type); |
| 1304 | mode = TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1304, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 1305 | |
| 1306 | /* Don't perform operation if we honor signaling NaNs and |
| 1307 | either operand is a signaling NaN. */ |
| 1308 | if (HONOR_SNANS (mode) |
| 1309 | && (REAL_VALUE_ISSIGNALING_NAN (d1)real_issignaling_nan (&(d1)) |
| 1310 | || REAL_VALUE_ISSIGNALING_NAN (d2)real_issignaling_nan (&(d2)))) |
| 1311 | return NULL_TREE(tree) __null; |
| 1312 | |
| 1313 | /* Don't perform operation if it would raise a division |
| 1314 | by zero exception. */ |
| 1315 | if (code == RDIV_EXPR |
| 1316 | && real_equal (&d2, &dconst0) |
| 1317 | && (flag_trapping_mathglobal_options.x_flag_trapping_math || ! MODE_HAS_INFINITIES (mode)((((enum mode_class) mode_class[mode]) == MODE_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT) && ((real_format_for_mode[(((enum mode_class) mode_class[as_a < scalar_float_mode> ((mode_to_inner (mode)))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (mode)) )) - MIN_MODE_DECIMAL_FLOAT) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class) mode_class[as_a <scalar_float_mode > ((mode_to_inner (mode)))]) == MODE_FLOAT ? ((as_a <scalar_float_mode > ((mode_to_inner (mode)))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1317, __FUNCTION__)), 0)]))->has_inf))) |
| 1318 | return NULL_TREE(tree) __null; |
| 1319 | |
| 1320 | /* If either operand is a NaN, just return it. Otherwise, set up |
| 1321 | for floating-point trap; we return an overflow. */ |
| 1322 | if (REAL_VALUE_ISNAN (d1)real_isnan (&(d1))) |
| 1323 | { |
| 1324 | /* Make resulting NaN value to be qNaN when flag_signaling_nans |
| 1325 | is off. */ |
| 1326 | d1.signalling = 0; |
| 1327 | t = build_real (type, d1); |
| 1328 | return t; |
| 1329 | } |
| 1330 | else if (REAL_VALUE_ISNAN (d2)real_isnan (&(d2))) |
| 1331 | { |
| 1332 | /* Make resulting NaN value to be qNaN when flag_signaling_nans |
| 1333 | is off. */ |
| 1334 | d2.signalling = 0; |
| 1335 | t = build_real (type, d2); |
| 1336 | return t; |
| 1337 | } |
| 1338 | |
| 1339 | inexact = real_arithmetic (&value, code, &d1, &d2); |
| 1340 | real_convert (&result, mode, &value); |
| 1341 | |
| 1342 | /* Don't constant fold this floating point operation if |
| 1343 | both operands are not NaN but the result is NaN, and |
| 1344 | flag_trapping_math. Such operations should raise an |
| 1345 | invalid operation exception. */ |
| 1346 | if (flag_trapping_mathglobal_options.x_flag_trapping_math |
| 1347 | && MODE_HAS_NANS (mode)((((enum mode_class) mode_class[mode]) == MODE_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT) && ((real_format_for_mode[(((enum mode_class) mode_class[as_a < scalar_float_mode> ((mode_to_inner (mode)))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (mode)) )) - MIN_MODE_DECIMAL_FLOAT) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class) mode_class[as_a <scalar_float_mode > ((mode_to_inner (mode)))]) == MODE_FLOAT ? ((as_a <scalar_float_mode > ((mode_to_inner (mode)))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1347, __FUNCTION__)), 0)]))->has_nans) |
| 1348 | && REAL_VALUE_ISNAN (result)real_isnan (&(result)) |
| 1349 | && !REAL_VALUE_ISNAN (d1)real_isnan (&(d1)) |
| 1350 | && !REAL_VALUE_ISNAN (d2)real_isnan (&(d2))) |
| 1351 | return NULL_TREE(tree) __null; |
| 1352 | |
| 1353 | /* Don't constant fold this floating point operation if |
| 1354 | the result has overflowed and flag_trapping_math. */ |
| 1355 | if (flag_trapping_mathglobal_options.x_flag_trapping_math |
| 1356 | && MODE_HAS_INFINITIES (mode)((((enum mode_class) mode_class[mode]) == MODE_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT) && ((real_format_for_mode[(((enum mode_class) mode_class[as_a < scalar_float_mode> ((mode_to_inner (mode)))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (mode)) )) - MIN_MODE_DECIMAL_FLOAT) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class) mode_class[as_a <scalar_float_mode > ((mode_to_inner (mode)))]) == MODE_FLOAT ? ((as_a <scalar_float_mode > ((mode_to_inner (mode)))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1356, __FUNCTION__)), 0)]))->has_inf) |
| 1357 | && REAL_VALUE_ISINF (result)real_isinf (&(result)) |
| 1358 | && !REAL_VALUE_ISINF (d1)real_isinf (&(d1)) |
| 1359 | && !REAL_VALUE_ISINF (d2)real_isinf (&(d2))) |
| 1360 | return NULL_TREE(tree) __null; |
| 1361 | |
| 1362 | /* Don't constant fold this floating point operation if the |
| 1363 | result may dependent upon the run-time rounding mode and |
| 1364 | flag_rounding_math is set, or if GCC's software emulation |
| 1365 | is unable to accurately represent the result. */ |
| 1366 | if ((flag_rounding_mathglobal_options.x_flag_rounding_math |
| 1367 | || (MODE_COMPOSITE_P (mode)((((enum mode_class) mode_class[mode]) == MODE_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT) && ((real_format_for_mode[(((enum mode_class) mode_class[as_a < scalar_float_mode> ((mode_to_inner (mode)))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (mode)) )) - MIN_MODE_DECIMAL_FLOAT) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class) mode_class[as_a <scalar_float_mode > ((mode_to_inner (mode)))]) == MODE_FLOAT ? ((as_a <scalar_float_mode > ((mode_to_inner (mode)))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1367, __FUNCTION__)), 0)]))->pnan < ((real_format_for_mode [(((enum mode_class) mode_class[as_a <scalar_float_mode> ((mode_to_inner (mode)))]) == MODE_DECIMAL_FLOAT) ? (((as_a < scalar_float_mode> ((mode_to_inner (mode)))) - MIN_MODE_DECIMAL_FLOAT ) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class ) mode_class[as_a <scalar_float_mode> ((mode_to_inner ( mode)))]) == MODE_FLOAT ? ((as_a <scalar_float_mode> (( mode_to_inner (mode)))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1367, __FUNCTION__)), 0)]))->p) && !flag_unsafe_math_optimizationsglobal_options.x_flag_unsafe_math_optimizations)) |
| 1368 | && (inexact || !real_identical (&result, &value))) |
| 1369 | return NULL_TREE(tree) __null; |
| 1370 | |
| 1371 | t = build_real (type, result); |
| 1372 | |
| 1373 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1373, __FUNCTION__))->base.public_flag) = TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1373, __FUNCTION__))->base.public_flag) | TREE_OVERFLOW (arg2)((tree_class_check ((arg2), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1373, __FUNCTION__))->base.public_flag); |
| 1374 | return t; |
| 1375 | } |
| 1376 | |
| 1377 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == FIXED_CST) |
| 1378 | { |
| 1379 | FIXED_VALUE_TYPEstruct fixed_value f1; |
| 1380 | FIXED_VALUE_TYPEstruct fixed_value f2; |
| 1381 | FIXED_VALUE_TYPEstruct fixed_value result; |
| 1382 | tree t, type; |
| 1383 | int sat_p; |
| 1384 | bool overflow_p; |
| 1385 | |
| 1386 | /* The following codes are handled by fixed_arithmetic. */ |
| 1387 | switch (code) |
| 1388 | { |
| 1389 | case PLUS_EXPR: |
| 1390 | case MINUS_EXPR: |
| 1391 | case MULT_EXPR: |
| 1392 | case TRUNC_DIV_EXPR: |
| 1393 | if (TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) != FIXED_CST) |
| 1394 | return NULL_TREE(tree) __null; |
| 1395 | f2 = TREE_FIXED_CST (arg2)(*((tree_check ((arg2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1395, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )); |
| 1396 | break; |
| 1397 | |
| 1398 | case LSHIFT_EXPR: |
| 1399 | case RSHIFT_EXPR: |
| 1400 | { |
| 1401 | if (TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) != INTEGER_CST) |
| 1402 | return NULL_TREE(tree) __null; |
| 1403 | wi::tree_to_wide_ref w2 = wi::to_wide (arg2); |
| 1404 | f2.data.high = w2.elt (1); |
| 1405 | f2.data.low = w2.ulow (); |
| 1406 | f2.mode = SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode)); |
| 1407 | } |
| 1408 | break; |
| 1409 | |
| 1410 | default: |
| 1411 | return NULL_TREE(tree) __null; |
| 1412 | } |
| 1413 | |
| 1414 | f1 = TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1414, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )); |
| 1415 | type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1415, __FUNCTION__))->typed.type); |
| 1416 | sat_p = TYPE_SATURATING (type)((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1416, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag); |
| 1417 | overflow_p = fixed_arithmetic (&result, code, &f1, &f2, sat_p); |
| 1418 | t = build_fixed (type, result); |
| 1419 | /* Propagate overflow flags. */ |
| 1420 | if (overflow_p | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1420, __FUNCTION__))->base.public_flag) | TREE_OVERFLOW (arg2)((tree_class_check ((arg2), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1420, __FUNCTION__))->base.public_flag)) |
| 1421 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1421, __FUNCTION__))->base.public_flag) = 1; |
| 1422 | return t; |
| 1423 | } |
| 1424 | |
| 1425 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == COMPLEX_CST && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == COMPLEX_CST) |
| 1426 | { |
| 1427 | tree type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1427, __FUNCTION__))->typed.type); |
| 1428 | tree r1 = TREE_REALPART (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1428, __FUNCTION__, (COMPLEX_CST)))->complex.real); |
| 1429 | tree i1 = TREE_IMAGPART (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1429, __FUNCTION__, (COMPLEX_CST)))->complex.imag); |
| 1430 | tree r2 = TREE_REALPART (arg2)((tree_check ((arg2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1430, __FUNCTION__, (COMPLEX_CST)))->complex.real); |
| 1431 | tree i2 = TREE_IMAGPART (arg2)((tree_check ((arg2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1431, __FUNCTION__, (COMPLEX_CST)))->complex.imag); |
| 1432 | tree real, imag; |
| 1433 | |
| 1434 | switch (code) |
| 1435 | { |
| 1436 | case PLUS_EXPR: |
| 1437 | case MINUS_EXPR: |
| 1438 | real = const_binop (code, r1, r2); |
| 1439 | imag = const_binop (code, i1, i2); |
| 1440 | break; |
| 1441 | |
| 1442 | case MULT_EXPR: |
| 1443 | if (COMPLEX_FLOAT_TYPE_P (type)(((enum tree_code) (type)->base.code) == COMPLEX_TYPE && ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1443, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE )) |
| 1444 | return do_mpc_arg2 (arg1, arg2, type, |
| 1445 | /* do_nonfinite= */ folding_initializer, |
| 1446 | mpc_mul); |
| 1447 | |
| 1448 | real = const_binop (MINUS_EXPR, |
| 1449 | const_binop (MULT_EXPR, r1, r2), |
| 1450 | const_binop (MULT_EXPR, i1, i2)); |
| 1451 | imag = const_binop (PLUS_EXPR, |
| 1452 | const_binop (MULT_EXPR, r1, i2), |
| 1453 | const_binop (MULT_EXPR, i1, r2)); |
| 1454 | break; |
| 1455 | |
| 1456 | case RDIV_EXPR: |
| 1457 | if (COMPLEX_FLOAT_TYPE_P (type)(((enum tree_code) (type)->base.code) == COMPLEX_TYPE && ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1457, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE )) |
| 1458 | return do_mpc_arg2 (arg1, arg2, type, |
| 1459 | /* do_nonfinite= */ folding_initializer, |
| 1460 | mpc_div); |
| 1461 | /* Fallthru. */ |
| 1462 | case TRUNC_DIV_EXPR: |
| 1463 | case CEIL_DIV_EXPR: |
| 1464 | case FLOOR_DIV_EXPR: |
| 1465 | case ROUND_DIV_EXPR: |
| 1466 | if (flag_complex_methodglobal_options.x_flag_complex_method == 0) |
| 1467 | { |
| 1468 | /* Keep this algorithm in sync with |
| 1469 | tree-complex.cc:expand_complex_div_straight(). |
| 1470 | |
| 1471 | Expand complex division to scalars, straightforward algorithm. |
| 1472 | a / b = ((ar*br + ai*bi)/t) + i((ai*br - ar*bi)/t) |
| 1473 | t = br*br + bi*bi |
| 1474 | */ |
| 1475 | tree magsquared |
| 1476 | = const_binop (PLUS_EXPR, |
| 1477 | const_binop (MULT_EXPR, r2, r2), |
| 1478 | const_binop (MULT_EXPR, i2, i2)); |
| 1479 | tree t1 |
| 1480 | = const_binop (PLUS_EXPR, |
| 1481 | const_binop (MULT_EXPR, r1, r2), |
| 1482 | const_binop (MULT_EXPR, i1, i2)); |
| 1483 | tree t2 |
| 1484 | = const_binop (MINUS_EXPR, |
| 1485 | const_binop (MULT_EXPR, i1, r2), |
| 1486 | const_binop (MULT_EXPR, r1, i2)); |
| 1487 | |
| 1488 | real = const_binop (code, t1, magsquared); |
| 1489 | imag = const_binop (code, t2, magsquared); |
| 1490 | } |
| 1491 | else |
| 1492 | { |
| 1493 | /* Keep this algorithm in sync with |
| 1494 | tree-complex.cc:expand_complex_div_wide(). |
| 1495 | |
| 1496 | Expand complex division to scalars, modified algorithm to minimize |
| 1497 | overflow with wide input ranges. */ |
| 1498 | tree compare = fold_build2 (LT_EXPR, boolean_type_node,fold_build2_loc (((location_t) 0), LT_EXPR, global_trees[TI_BOOLEAN_TYPE ], fold_abs_const (r2, ((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1499, __FUNCTION__))->typed.type)), fold_abs_const (i2, ( (contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1500, __FUNCTION__))->typed.type)) ) |
| 1499 | fold_abs_const (r2, TREE_TYPE (type)),fold_build2_loc (((location_t) 0), LT_EXPR, global_trees[TI_BOOLEAN_TYPE ], fold_abs_const (r2, ((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1499, __FUNCTION__))->typed.type)), fold_abs_const (i2, ( (contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1500, __FUNCTION__))->typed.type)) ) |
| 1500 | fold_abs_const (i2, TREE_TYPE (type)))fold_build2_loc (((location_t) 0), LT_EXPR, global_trees[TI_BOOLEAN_TYPE ], fold_abs_const (r2, ((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1499, __FUNCTION__))->typed.type)), fold_abs_const (i2, ( (contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1500, __FUNCTION__))->typed.type)) ); |
| 1501 | |
| 1502 | if (integer_nonzerop (compare)) |
| 1503 | { |
| 1504 | /* In the TRUE branch, we compute |
| 1505 | ratio = br/bi; |
| 1506 | div = (br * ratio) + bi; |
| 1507 | tr = (ar * ratio) + ai; |
| 1508 | ti = (ai * ratio) - ar; |
| 1509 | tr = tr / div; |
| 1510 | ti = ti / div; */ |
| 1511 | tree ratio = const_binop (code, r2, i2); |
| 1512 | tree div = const_binop (PLUS_EXPR, i2, |
| 1513 | const_binop (MULT_EXPR, r2, ratio)); |
| 1514 | real = const_binop (MULT_EXPR, r1, ratio); |
| 1515 | real = const_binop (PLUS_EXPR, real, i1); |
| 1516 | real = const_binop (code, real, div); |
| 1517 | |
| 1518 | imag = const_binop (MULT_EXPR, i1, ratio); |
| 1519 | imag = const_binop (MINUS_EXPR, imag, r1); |
| 1520 | imag = const_binop (code, imag, div); |
| 1521 | } |
| 1522 | else |
| 1523 | { |
| 1524 | /* In the FALSE branch, we compute |
| 1525 | ratio = d/c; |
| 1526 | divisor = (d * ratio) + c; |
| 1527 | tr = (b * ratio) + a; |
| 1528 | ti = b - (a * ratio); |
| 1529 | tr = tr / div; |
| 1530 | ti = ti / div; */ |
| 1531 | tree ratio = const_binop (code, i2, r2); |
| 1532 | tree div = const_binop (PLUS_EXPR, r2, |
| 1533 | const_binop (MULT_EXPR, i2, ratio)); |
| 1534 | |
| 1535 | real = const_binop (MULT_EXPR, i1, ratio); |
| 1536 | real = const_binop (PLUS_EXPR, real, r1); |
| 1537 | real = const_binop (code, real, div); |
| 1538 | |
| 1539 | imag = const_binop (MULT_EXPR, r1, ratio); |
| 1540 | imag = const_binop (MINUS_EXPR, i1, imag); |
| 1541 | imag = const_binop (code, imag, div); |
| 1542 | } |
| 1543 | } |
| 1544 | break; |
| 1545 | |
| 1546 | default: |
| 1547 | return NULL_TREE(tree) __null; |
| 1548 | } |
| 1549 | |
| 1550 | if (real && imag) |
| 1551 | return build_complex (type, real, imag); |
| 1552 | } |
| 1553 | |
| 1554 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == VECTOR_CST |
| 1555 | && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == VECTOR_CST |
| 1556 | && known_eq (TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg1)),(!maybe_ne (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg1 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1556, __FUNCTION__))->typed.type)), TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1557, __FUNCTION__))->typed.type)))) |
| 1557 | TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg2)))(!maybe_ne (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg1 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1556, __FUNCTION__))->typed.type)), TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1557, __FUNCTION__))->typed.type))))) |
| 1558 | { |
| 1559 | tree type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1559, __FUNCTION__))->typed.type); |
| 1560 | bool step_ok_p; |
| 1561 | if (VECTOR_CST_STEPPED_P (arg1)(((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1561, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern ) == 3) |
| 1562 | && VECTOR_CST_STEPPED_P (arg2)(((tree_check ((arg2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1562, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern ) == 3)) |
| 1563 | /* We can operate directly on the encoding if: |
| 1564 | |
| 1565 | a3 - a2 == a2 - a1 && b3 - b2 == b2 - b1 |
| 1566 | implies |
| 1567 | (a3 op b3) - (a2 op b2) == (a2 op b2) - (a1 op b1) |
| 1568 | |
| 1569 | Addition and subtraction are the supported operators |
| 1570 | for which this is true. */ |
| 1571 | step_ok_p = (code == PLUS_EXPR || code == MINUS_EXPR); |
| 1572 | else if (VECTOR_CST_STEPPED_P (arg1)(((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1572, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern ) == 3)) |
| 1573 | /* We can operate directly on stepped encodings if: |
| 1574 | |
| 1575 | a3 - a2 == a2 - a1 |
| 1576 | implies: |
| 1577 | (a3 op c) - (a2 op c) == (a2 op c) - (a1 op c) |
| 1578 | |
| 1579 | which is true if (x -> x op c) distributes over addition. */ |
| 1580 | step_ok_p = distributes_over_addition_p (code, 1); |
| 1581 | else |
| 1582 | /* Similarly in reverse. */ |
| 1583 | step_ok_p = distributes_over_addition_p (code, 2); |
| 1584 | tree_vector_builder elts; |
| 1585 | if (!elts.new_binary_operation (type, arg1, arg2, step_ok_p)) |
| 1586 | return NULL_TREE(tree) __null; |
| 1587 | unsigned int count = elts.encoded_nelts (); |
| 1588 | for (unsigned int i = 0; i < count; ++i) |
| 1589 | { |
| 1590 | tree elem1 = VECTOR_CST_ELT (arg1, i)vector_cst_elt (arg1, i); |
| 1591 | tree elem2 = VECTOR_CST_ELT (arg2, i)vector_cst_elt (arg2, i); |
| 1592 | |
| 1593 | tree elt = const_binop (code, elem1, elem2); |
| 1594 | |
| 1595 | /* It is possible that const_binop cannot handle the given |
| 1596 | code and return NULL_TREE */ |
| 1597 | if (elt == NULL_TREE(tree) __null) |
| 1598 | return NULL_TREE(tree) __null; |
| 1599 | elts.quick_push (elt); |
| 1600 | } |
| 1601 | |
| 1602 | return elts.build (); |
| 1603 | } |
| 1604 | |
| 1605 | /* Shifts allow a scalar offset for a vector. */ |
| 1606 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == VECTOR_CST |
| 1607 | && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == INTEGER_CST) |
| 1608 | { |
| 1609 | tree type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1609, __FUNCTION__))->typed.type); |
| 1610 | bool step_ok_p = distributes_over_addition_p (code, 1); |
| 1611 | tree_vector_builder elts; |
| 1612 | if (!elts.new_unary_operation (type, arg1, step_ok_p)) |
| 1613 | return NULL_TREE(tree) __null; |
| 1614 | unsigned int count = elts.encoded_nelts (); |
| 1615 | for (unsigned int i = 0; i < count; ++i) |
| 1616 | { |
| 1617 | tree elem1 = VECTOR_CST_ELT (arg1, i)vector_cst_elt (arg1, i); |
| 1618 | |
| 1619 | tree elt = const_binop (code, elem1, arg2); |
| 1620 | |
| 1621 | /* It is possible that const_binop cannot handle the given |
| 1622 | code and return NULL_TREE. */ |
| 1623 | if (elt == NULL_TREE(tree) __null) |
| 1624 | return NULL_TREE(tree) __null; |
| 1625 | elts.quick_push (elt); |
| 1626 | } |
| 1627 | |
| 1628 | return elts.build (); |
| 1629 | } |
| 1630 | return NULL_TREE(tree) __null; |
| 1631 | } |
| 1632 | |
| 1633 | /* Overload that adds a TYPE parameter to be able to dispatch |
| 1634 | to fold_relational_const. */ |
| 1635 | |
| 1636 | tree |
| 1637 | const_binop (enum tree_code code, tree type, tree arg1, tree arg2) |
| 1638 | { |
| 1639 | if (TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)] == tcc_comparison) |
| 1640 | return fold_relational_const (code, type, arg1, arg2); |
| 1641 | |
| 1642 | /* ??? Until we make the const_binop worker take the type of the |
| 1643 | result as argument put those cases that need it here. */ |
| 1644 | switch (code) |
| 1645 | { |
| 1646 | case VEC_SERIES_EXPR: |
| 1647 | if (CONSTANT_CLASS_P (arg1)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg1)->base.code))] == tcc_constant) |
| 1648 | && CONSTANT_CLASS_P (arg2)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg2)->base.code))] == tcc_constant)) |
| 1649 | return build_vec_series (type, arg1, arg2); |
| 1650 | return NULL_TREE(tree) __null; |
| 1651 | |
| 1652 | case COMPLEX_EXPR: |
| 1653 | if ((TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == REAL_CST |
| 1654 | && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == REAL_CST) |
| 1655 | || (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST |
| 1656 | && TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) == INTEGER_CST)) |
| 1657 | return build_complex (type, arg1, arg2); |
| 1658 | return NULL_TREE(tree) __null; |
| 1659 | |
| 1660 | case POINTER_DIFF_EXPR: |
| 1661 | if (poly_int_tree_p (arg1) && poly_int_tree_p (arg2)) |
| 1662 | { |
| 1663 | poly_offset_int res = (wi::to_poly_offset (arg1) |
| 1664 | - wi::to_poly_offset (arg2)); |
| 1665 | return force_fit_type (type, res, 1, |
| 1666 | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1666, __FUNCTION__))->base.public_flag) | TREE_OVERFLOW (arg2)((tree_class_check ((arg2), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1666, __FUNCTION__))->base.public_flag)); |
| 1667 | } |
| 1668 | return NULL_TREE(tree) __null; |
| 1669 | |
| 1670 | case VEC_PACK_TRUNC_EXPR: |
| 1671 | case VEC_PACK_FIX_TRUNC_EXPR: |
| 1672 | case VEC_PACK_FLOAT_EXPR: |
| 1673 | { |
| 1674 | unsigned int HOST_WIDE_INTlong out_nelts, in_nelts, i; |
| 1675 | |
| 1676 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) != VECTOR_CST |
| 1677 | || TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) != VECTOR_CST) |
| 1678 | return NULL_TREE(tree) __null; |
| 1679 | |
| 1680 | if (!VECTOR_CST_NELTS (arg1)(TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1680, __FUNCTION__))->typed.type))).is_constant (&in_nelts)) |
| 1681 | return NULL_TREE(tree) __null; |
| 1682 | |
| 1683 | out_nelts = in_nelts * 2; |
| 1684 | gcc_assert (known_eq (in_nelts, VECTOR_CST_NELTS (arg2))((void)(!((!maybe_ne (in_nelts, (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1684, __FUNCTION__))->typed.type))))) && (!maybe_ne (out_nelts, TYPE_VECTOR_SUBPARTS (type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1685, __FUNCTION__), 0 : 0)) |
| 1685 | && known_eq (out_nelts, TYPE_VECTOR_SUBPARTS (type)))((void)(!((!maybe_ne (in_nelts, (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1684, __FUNCTION__))->typed.type))))) && (!maybe_ne (out_nelts, TYPE_VECTOR_SUBPARTS (type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1685, __FUNCTION__), 0 : 0)); |
| 1686 | |
| 1687 | tree_vector_builder elts (type, out_nelts, 1); |
| 1688 | for (i = 0; i < out_nelts; i++) |
| 1689 | { |
| 1690 | tree elt = (i < in_nelts |
| 1691 | ? VECTOR_CST_ELT (arg1, i)vector_cst_elt (arg1, i) |
| 1692 | : VECTOR_CST_ELT (arg2, i - in_nelts)vector_cst_elt (arg2, i - in_nelts)); |
| 1693 | elt = fold_convert_const (code == VEC_PACK_TRUNC_EXPR |
| 1694 | ? NOP_EXPR |
| 1695 | : code == VEC_PACK_FLOAT_EXPR |
| 1696 | ? FLOAT_EXPR : FIX_TRUNC_EXPR, |
| 1697 | TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1697, __FUNCTION__))->typed.type), elt); |
| 1698 | if (elt == NULL_TREE(tree) __null || !CONSTANT_CLASS_P (elt)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (elt)->base.code))] == tcc_constant)) |
| 1699 | return NULL_TREE(tree) __null; |
| 1700 | elts.quick_push (elt); |
| 1701 | } |
| 1702 | |
| 1703 | return elts.build (); |
| 1704 | } |
| 1705 | |
| 1706 | case VEC_WIDEN_MULT_LO_EXPR: |
| 1707 | case VEC_WIDEN_MULT_HI_EXPR: |
| 1708 | case VEC_WIDEN_MULT_EVEN_EXPR: |
| 1709 | case VEC_WIDEN_MULT_ODD_EXPR: |
| 1710 | { |
| 1711 | unsigned HOST_WIDE_INTlong out_nelts, in_nelts, out, ofs, scale; |
| 1712 | |
| 1713 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) != VECTOR_CST || TREE_CODE (arg2)((enum tree_code) (arg2)->base.code) != VECTOR_CST) |
| 1714 | return NULL_TREE(tree) __null; |
| 1715 | |
| 1716 | if (!VECTOR_CST_NELTS (arg1)(TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1716, __FUNCTION__))->typed.type))).is_constant (&in_nelts)) |
| 1717 | return NULL_TREE(tree) __null; |
| 1718 | out_nelts = in_nelts / 2; |
| 1719 | gcc_assert (known_eq (in_nelts, VECTOR_CST_NELTS (arg2))((void)(!((!maybe_ne (in_nelts, (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1719, __FUNCTION__))->typed.type))))) && (!maybe_ne (out_nelts, TYPE_VECTOR_SUBPARTS (type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1720, __FUNCTION__), 0 : 0)) |
| 1720 | && known_eq (out_nelts, TYPE_VECTOR_SUBPARTS (type)))((void)(!((!maybe_ne (in_nelts, (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg2), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1719, __FUNCTION__))->typed.type))))) && (!maybe_ne (out_nelts, TYPE_VECTOR_SUBPARTS (type)))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1720, __FUNCTION__), 0 : 0)); |
| 1721 | |
| 1722 | if (code == VEC_WIDEN_MULT_LO_EXPR) |
| 1723 | scale = 0, ofs = BYTES_BIG_ENDIAN0 ? out_nelts : 0; |
| 1724 | else if (code == VEC_WIDEN_MULT_HI_EXPR) |
| 1725 | scale = 0, ofs = BYTES_BIG_ENDIAN0 ? 0 : out_nelts; |
| 1726 | else if (code == VEC_WIDEN_MULT_EVEN_EXPR) |
| 1727 | scale = 1, ofs = 0; |
| 1728 | else /* if (code == VEC_WIDEN_MULT_ODD_EXPR) */ |
| 1729 | scale = 1, ofs = 1; |
| 1730 | |
| 1731 | tree_vector_builder elts (type, out_nelts, 1); |
| 1732 | for (out = 0; out < out_nelts; out++) |
| 1733 | { |
| 1734 | unsigned int in = (out << scale) + ofs; |
| 1735 | tree t1 = fold_convert_const (NOP_EXPR, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1735, __FUNCTION__))->typed.type), |
| 1736 | VECTOR_CST_ELT (arg1, in)vector_cst_elt (arg1, in)); |
| 1737 | tree t2 = fold_convert_const (NOP_EXPR, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1737, __FUNCTION__))->typed.type), |
| 1738 | VECTOR_CST_ELT (arg2, in)vector_cst_elt (arg2, in)); |
| 1739 | |
| 1740 | if (t1 == NULL_TREE(tree) __null || t2 == NULL_TREE(tree) __null) |
| 1741 | return NULL_TREE(tree) __null; |
| 1742 | tree elt = const_binop (MULT_EXPR, t1, t2); |
| 1743 | if (elt == NULL_TREE(tree) __null || !CONSTANT_CLASS_P (elt)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (elt)->base.code))] == tcc_constant)) |
| 1744 | return NULL_TREE(tree) __null; |
| 1745 | elts.quick_push (elt); |
| 1746 | } |
| 1747 | |
| 1748 | return elts.build (); |
| 1749 | } |
| 1750 | |
| 1751 | default:; |
| 1752 | } |
| 1753 | |
| 1754 | if (TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)] != tcc_binary) |
| 1755 | return NULL_TREE(tree) __null; |
| 1756 | |
| 1757 | /* Make sure type and arg0 have the same saturating flag. */ |
| 1758 | gcc_checking_assert (TYPE_SATURATING (type)((void)(!(((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1758, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag) == ((tree_not_check4 ((((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__), 0 : 0)) |
| 1759 | == TYPE_SATURATING (TREE_TYPE (arg1)))((void)(!(((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1758, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag) == ((tree_not_check4 ((((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__))->typed.type)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1759, __FUNCTION__), 0 : 0)); |
| 1760 | |
| 1761 | return const_binop (code, arg1, arg2); |
| 1762 | } |
| 1763 | |
| 1764 | /* Compute CODE ARG1 with resulting type TYPE with ARG1 being constant. |
| 1765 | Return zero if computing the constants is not possible. */ |
| 1766 | |
| 1767 | tree |
| 1768 | const_unop (enum tree_code code, tree type, tree arg0) |
| 1769 | { |
| 1770 | /* Don't perform the operation, other than NEGATE and ABS, if |
| 1771 | flag_signaling_nans is on and the operand is a signaling NaN. */ |
| 1772 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == REAL_CST |
| 1773 | && HONOR_SNANS (arg0) |
| 1774 | && REAL_VALUE_ISSIGNALING_NAN (TREE_REAL_CST (arg0))real_issignaling_nan (&((*(&(tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1774, __FUNCTION__, (REAL_CST)))->real_cst.value)))) |
| 1775 | && code != NEGATE_EXPR |
| 1776 | && code != ABS_EXPR |
| 1777 | && code != ABSU_EXPR) |
| 1778 | return NULL_TREE(tree) __null; |
| 1779 | |
| 1780 | switch (code) |
| 1781 | { |
| 1782 | CASE_CONVERTcase NOP_EXPR: case CONVERT_EXPR: |
| 1783 | case FLOAT_EXPR: |
| 1784 | case FIX_TRUNC_EXPR: |
| 1785 | case FIXED_CONVERT_EXPR: |
| 1786 | return fold_convert_const (code, type, arg0); |
| 1787 | |
| 1788 | case ADDR_SPACE_CONVERT_EXPR: |
| 1789 | /* If the source address is 0, and the source address space |
| 1790 | cannot have a valid object at 0, fold to dest type null. */ |
| 1791 | if (integer_zerop (arg0) |
| 1792 | && !(targetm.addr_space.zero_address_valid |
| 1793 | (TYPE_ADDR_SPACE (TREE_TYPE (TREE_TYPE (arg0)))((tree_class_check ((((contains_struct_check ((((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1793, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1793, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1793, __FUNCTION__))->base.u.bits.address_space)))) |
| 1794 | return fold_convert_const (code, type, arg0); |
| 1795 | break; |
| 1796 | |
| 1797 | case VIEW_CONVERT_EXPR: |
| 1798 | return fold_view_convert_expr (type, arg0); |
| 1799 | |
| 1800 | case NEGATE_EXPR: |
| 1801 | { |
| 1802 | /* Can't call fold_negate_const directly here as that doesn't |
| 1803 | handle all cases and we might not be able to negate some |
| 1804 | constants. */ |
| 1805 | tree tem = fold_negate_expr (UNKNOWN_LOCATION((location_t) 0), arg0); |
| 1806 | if (tem && CONSTANT_CLASS_P (tem)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (tem)->base.code))] == tcc_constant)) |
| 1807 | return tem; |
| 1808 | break; |
| 1809 | } |
| 1810 | |
| 1811 | case ABS_EXPR: |
| 1812 | case ABSU_EXPR: |
| 1813 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == INTEGER_CST || TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == REAL_CST) |
| 1814 | return fold_abs_const (arg0, type); |
| 1815 | break; |
| 1816 | |
| 1817 | case CONJ_EXPR: |
| 1818 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == COMPLEX_CST) |
| 1819 | { |
| 1820 | tree ipart = fold_negate_const (TREE_IMAGPART (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1820, __FUNCTION__, (COMPLEX_CST)))->complex.imag), |
| 1821 | TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1821, __FUNCTION__))->typed.type)); |
| 1822 | return build_complex (type, TREE_REALPART (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1822, __FUNCTION__, (COMPLEX_CST)))->complex.real), ipart); |
| 1823 | } |
| 1824 | break; |
| 1825 | |
| 1826 | case BIT_NOT_EXPR: |
| 1827 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == INTEGER_CST) |
| 1828 | return fold_not_const (arg0, type); |
| 1829 | else if (POLY_INT_CST_P (arg0)(1 > 1 && ((enum tree_code) (arg0)->base.code) == POLY_INT_CST)) |
| 1830 | return wide_int_to_tree (type, -poly_int_cst_value (arg0)); |
| 1831 | /* Perform BIT_NOT_EXPR on each element individually. */ |
| 1832 | else if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == VECTOR_CST) |
| 1833 | { |
| 1834 | tree elem; |
| 1835 | |
| 1836 | /* This can cope with stepped encodings because ~x == -1 - x. */ |
| 1837 | tree_vector_builder elements; |
| 1838 | elements.new_unary_operation (type, arg0, true); |
| 1839 | unsigned int i, count = elements.encoded_nelts (); |
| 1840 | for (i = 0; i < count; ++i) |
| 1841 | { |
| 1842 | elem = VECTOR_CST_ELT (arg0, i)vector_cst_elt (arg0, i); |
| 1843 | elem = const_unop (BIT_NOT_EXPR, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1843, __FUNCTION__))->typed.type), elem); |
| 1844 | if (elem == NULL_TREE(tree) __null) |
| 1845 | break; |
| 1846 | elements.quick_push (elem); |
| 1847 | } |
| 1848 | if (i == count) |
| 1849 | return elements.build (); |
| 1850 | } |
| 1851 | break; |
| 1852 | |
| 1853 | case TRUTH_NOT_EXPR: |
| 1854 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == INTEGER_CST) |
| 1855 | return constant_boolean_node (integer_zerop (arg0), type); |
| 1856 | break; |
| 1857 | |
| 1858 | case REALPART_EXPR: |
| 1859 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == COMPLEX_CST) |
| 1860 | return fold_convert (type, TREE_REALPART (arg0))fold_convert_loc (((location_t) 0), type, ((tree_check ((arg0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1860, __FUNCTION__, (COMPLEX_CST)))->complex.real)); |
| 1861 | break; |
| 1862 | |
| 1863 | case IMAGPART_EXPR: |
| 1864 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == COMPLEX_CST) |
| 1865 | return fold_convert (type, TREE_IMAGPART (arg0))fold_convert_loc (((location_t) 0), type, ((tree_check ((arg0 ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1865, __FUNCTION__, (COMPLEX_CST)))->complex.imag)); |
| 1866 | break; |
| 1867 | |
| 1868 | case VEC_UNPACK_LO_EXPR: |
| 1869 | case VEC_UNPACK_HI_EXPR: |
| 1870 | case VEC_UNPACK_FLOAT_LO_EXPR: |
| 1871 | case VEC_UNPACK_FLOAT_HI_EXPR: |
| 1872 | case VEC_UNPACK_FIX_TRUNC_LO_EXPR: |
| 1873 | case VEC_UNPACK_FIX_TRUNC_HI_EXPR: |
| 1874 | { |
| 1875 | unsigned HOST_WIDE_INTlong out_nelts, in_nelts, i; |
| 1876 | enum tree_code subcode; |
| 1877 | |
| 1878 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) != VECTOR_CST) |
| 1879 | return NULL_TREE(tree) __null; |
| 1880 | |
| 1881 | if (!VECTOR_CST_NELTS (arg0)(TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1881, __FUNCTION__))->typed.type))).is_constant (&in_nelts)) |
| 1882 | return NULL_TREE(tree) __null; |
| 1883 | out_nelts = in_nelts / 2; |
| 1884 | gcc_assert (known_eq (out_nelts, TYPE_VECTOR_SUBPARTS (type)))((void)(!((!maybe_ne (out_nelts, TYPE_VECTOR_SUBPARTS (type)) )) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1884, __FUNCTION__), 0 : 0)); |
| 1885 | |
| 1886 | unsigned int offset = 0; |
| 1887 | if ((!BYTES_BIG_ENDIAN0) ^ (code == VEC_UNPACK_LO_EXPR |
| 1888 | || code == VEC_UNPACK_FLOAT_LO_EXPR |
| 1889 | || code == VEC_UNPACK_FIX_TRUNC_LO_EXPR)) |
| 1890 | offset = out_nelts; |
| 1891 | |
| 1892 | if (code == VEC_UNPACK_LO_EXPR || code == VEC_UNPACK_HI_EXPR) |
| 1893 | subcode = NOP_EXPR; |
| 1894 | else if (code == VEC_UNPACK_FLOAT_LO_EXPR |
| 1895 | || code == VEC_UNPACK_FLOAT_HI_EXPR) |
| 1896 | subcode = FLOAT_EXPR; |
| 1897 | else |
| 1898 | subcode = FIX_TRUNC_EXPR; |
| 1899 | |
| 1900 | tree_vector_builder elts (type, out_nelts, 1); |
| 1901 | for (i = 0; i < out_nelts; i++) |
| 1902 | { |
| 1903 | tree elt = fold_convert_const (subcode, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1903, __FUNCTION__))->typed.type), |
| 1904 | VECTOR_CST_ELT (arg0, i + offset)vector_cst_elt (arg0, i + offset)); |
| 1905 | if (elt == NULL_TREE(tree) __null || !CONSTANT_CLASS_P (elt)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (elt)->base.code))] == tcc_constant)) |
| 1906 | return NULL_TREE(tree) __null; |
| 1907 | elts.quick_push (elt); |
| 1908 | } |
| 1909 | |
| 1910 | return elts.build (); |
| 1911 | } |
| 1912 | |
| 1913 | case VEC_DUPLICATE_EXPR: |
| 1914 | if (CONSTANT_CLASS_P (arg0)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg0)->base.code))] == tcc_constant)) |
| 1915 | return build_vector_from_val (type, arg0); |
| 1916 | return NULL_TREE(tree) __null; |
| 1917 | |
| 1918 | default: |
| 1919 | break; |
| 1920 | } |
| 1921 | |
| 1922 | return NULL_TREE(tree) __null; |
| 1923 | } |
| 1924 | |
| 1925 | /* Create a sizetype INT_CST node with NUMBER sign extended. KIND |
| 1926 | indicates which particular sizetype to create. */ |
| 1927 | |
| 1928 | tree |
| 1929 | size_int_kind (poly_int64 number, enum size_type_kind kind) |
| 1930 | { |
| 1931 | return build_int_cst (sizetype_tab[(int) kind], number); |
| 1932 | } |
| 1933 | |
| 1934 | /* Combine operands OP1 and OP2 with arithmetic operation CODE. CODE |
| 1935 | is a tree code. The type of the result is taken from the operands. |
| 1936 | Both must be equivalent integer types, ala int_binop_types_match_p. |
| 1937 | If the operands are constant, so is the result. */ |
| 1938 | |
| 1939 | tree |
| 1940 | size_binop_loc (location_t loc, enum tree_code code, tree arg0, tree arg1) |
| 1941 | { |
| 1942 | tree type = TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1942, __FUNCTION__))->typed.type); |
| 1943 | |
| 1944 | if (arg0 == error_mark_nodeglobal_trees[TI_ERROR_MARK] || arg1 == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 1945 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 1946 | |
| 1947 | gcc_assert (int_binop_types_match_p (code, TREE_TYPE (arg0),((void)(!(int_binop_types_match_p (code, ((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1947, __FUNCTION__))->typed.type), ((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1948, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1948, __FUNCTION__), 0 : 0)) |
| 1948 | TREE_TYPE (arg1)))((void)(!(int_binop_types_match_p (code, ((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1947, __FUNCTION__))->typed.type), ((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1948, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1948, __FUNCTION__), 0 : 0)); |
| 1949 | |
| 1950 | /* Handle the special case of two poly_int constants faster. */ |
| 1951 | if (poly_int_tree_p (arg0) && poly_int_tree_p (arg1)) |
| 1952 | { |
| 1953 | /* And some specific cases even faster than that. */ |
| 1954 | if (code == PLUS_EXPR) |
| 1955 | { |
| 1956 | if (integer_zerop (arg0) |
| 1957 | && !TREE_OVERFLOW (tree_strip_any_location_wrapper (arg0))((tree_class_check ((tree_strip_any_location_wrapper (arg0)), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1957, __FUNCTION__))->base.public_flag)) |
| 1958 | return arg1; |
| 1959 | if (integer_zerop (arg1) |
| 1960 | && !TREE_OVERFLOW (tree_strip_any_location_wrapper (arg1))((tree_class_check ((tree_strip_any_location_wrapper (arg1)), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1960, __FUNCTION__))->base.public_flag)) |
| 1961 | return arg0; |
| 1962 | } |
| 1963 | else if (code == MINUS_EXPR) |
| 1964 | { |
| 1965 | if (integer_zerop (arg1) |
| 1966 | && !TREE_OVERFLOW (tree_strip_any_location_wrapper (arg1))((tree_class_check ((tree_strip_any_location_wrapper (arg1)), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1966, __FUNCTION__))->base.public_flag)) |
| 1967 | return arg0; |
| 1968 | } |
| 1969 | else if (code == MULT_EXPR) |
| 1970 | { |
| 1971 | if (integer_onep (arg0) |
| 1972 | && !TREE_OVERFLOW (tree_strip_any_location_wrapper (arg0))((tree_class_check ((tree_strip_any_location_wrapper (arg0)), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1972, __FUNCTION__))->base.public_flag)) |
| 1973 | return arg1; |
| 1974 | } |
| 1975 | |
| 1976 | /* Handle general case of two integer constants. For sizetype |
| 1977 | constant calculations we always want to know about overflow, |
| 1978 | even in the unsigned case. */ |
| 1979 | tree res = int_const_binop (code, arg0, arg1, -1); |
| 1980 | if (res != NULL_TREE(tree) __null) |
| 1981 | return res; |
| 1982 | } |
| 1983 | |
| 1984 | return fold_build2_loc (loc, code, type, arg0, arg1); |
| 1985 | } |
| 1986 | |
| 1987 | /* Given two values, either both of sizetype or both of bitsizetype, |
| 1988 | compute the difference between the two values. Return the value |
| 1989 | in signed type corresponding to the type of the operands. */ |
| 1990 | |
| 1991 | tree |
| 1992 | size_diffop_loc (location_t loc, tree arg0, tree arg1) |
| 1993 | { |
| 1994 | tree type = TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1994, __FUNCTION__))->typed.type); |
| 1995 | tree ctype; |
| 1996 | |
| 1997 | gcc_assert (int_binop_types_match_p (MINUS_EXPR, TREE_TYPE (arg0),((void)(!(int_binop_types_match_p (MINUS_EXPR, ((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1997, __FUNCTION__))->typed.type), ((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1998, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1998, __FUNCTION__), 0 : 0)) |
| 1998 | TREE_TYPE (arg1)))((void)(!(int_binop_types_match_p (MINUS_EXPR, ((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1997, __FUNCTION__))->typed.type), ((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1998, __FUNCTION__))->typed.type))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 1998, __FUNCTION__), 0 : 0)); |
| 1999 | |
| 2000 | /* If the type is already signed, just do the simple thing. */ |
| 2001 | if (!TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2001, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 2002 | return size_binop_loc (loc, MINUS_EXPR, arg0, arg1); |
| 2003 | |
| 2004 | if (type == sizetypesizetype_tab[(int) stk_sizetype]) |
| 2005 | ctype = ssizetypesizetype_tab[(int) stk_ssizetype]; |
| 2006 | else if (type == bitsizetypesizetype_tab[(int) stk_bitsizetype]) |
| 2007 | ctype = sbitsizetypesizetype_tab[(int) stk_sbitsizetype]; |
| 2008 | else |
| 2009 | ctype = signed_type_for (type); |
| 2010 | |
| 2011 | /* If either operand is not a constant, do the conversions to the signed |
| 2012 | type and subtract. The hardware will do the right thing with any |
| 2013 | overflow in the subtraction. */ |
| 2014 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) != INTEGER_CST || TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) != INTEGER_CST) |
| 2015 | return size_binop_loc (loc, MINUS_EXPR, |
| 2016 | fold_convert_loc (loc, ctype, arg0), |
| 2017 | fold_convert_loc (loc, ctype, arg1)); |
| 2018 | |
| 2019 | /* If ARG0 is larger than ARG1, subtract and return the result in CTYPE. |
| 2020 | Otherwise, subtract the other way, convert to CTYPE (we know that can't |
| 2021 | overflow) and negate (which can't either). Special-case a result |
| 2022 | of zero while we're here. */ |
| 2023 | if (tree_int_cst_equal (arg0, arg1)) |
| 2024 | return build_int_cst (ctype, 0); |
| 2025 | else if (tree_int_cst_lt (arg1, arg0)) |
| 2026 | return fold_convert_loc (loc, ctype, |
| 2027 | size_binop_loc (loc, MINUS_EXPR, arg0, arg1)); |
| 2028 | else |
| 2029 | return size_binop_loc (loc, MINUS_EXPR, build_int_cst (ctype, 0), |
| 2030 | fold_convert_loc (loc, ctype, |
| 2031 | size_binop_loc (loc, |
| 2032 | MINUS_EXPR, |
| 2033 | arg1, arg0))); |
| 2034 | } |
| 2035 | |
| 2036 | /* A subroutine of fold_convert_const handling conversions of an |
| 2037 | INTEGER_CST to another integer type. */ |
| 2038 | |
| 2039 | static tree |
| 2040 | fold_convert_const_int_from_int (tree type, const_tree arg1) |
| 2041 | { |
| 2042 | /* Given an integer constant, make new constant with new type, |
| 2043 | appropriately sign-extended or truncated. Use widest_int |
| 2044 | so that any extension is done according ARG1's type. */ |
| 2045 | return force_fit_type (type, wi::to_widest (arg1), |
| 2046 | !POINTER_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2046, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2046, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ), |
| 2047 | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2047, __FUNCTION__))->base.public_flag)); |
| 2048 | } |
| 2049 | |
| 2050 | /* A subroutine of fold_convert_const handling conversions a REAL_CST |
| 2051 | to an integer type. */ |
| 2052 | |
| 2053 | static tree |
| 2054 | fold_convert_const_int_from_real (enum tree_code code, tree type, const_tree arg1) |
| 2055 | { |
| 2056 | bool overflow = false; |
| 2057 | tree t; |
| 2058 | |
| 2059 | /* The following code implements the floating point to integer |
| 2060 | conversion rules required by the Java Language Specification, |
| 2061 | that IEEE NaNs are mapped to zero and values that overflow |
| 2062 | the target precision saturate, i.e. values greater than |
| 2063 | INT_MAX are mapped to INT_MAX, and values less than INT_MIN |
| 2064 | are mapped to INT_MIN. These semantics are allowed by the |
| 2065 | C and C++ standards that simply state that the behavior of |
| 2066 | FP-to-integer conversion is unspecified upon overflow. */ |
| 2067 | |
| 2068 | wide_int val; |
| 2069 | REAL_VALUE_TYPEstruct real_value r; |
| 2070 | REAL_VALUE_TYPEstruct real_value x = TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2070, __FUNCTION__, (REAL_CST)))->real_cst.value)); |
| 2071 | |
| 2072 | switch (code) |
| 2073 | { |
| 2074 | case FIX_TRUNC_EXPR: |
| 2075 | real_trunc (&r, VOIDmode((void) 0, E_VOIDmode), &x); |
| 2076 | break; |
| 2077 | |
| 2078 | default: |
| 2079 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2079, __FUNCTION__)); |
| 2080 | } |
| 2081 | |
| 2082 | /* If R is NaN, return zero and show we have an overflow. */ |
| 2083 | if (REAL_VALUE_ISNAN (r)real_isnan (&(r))) |
| 2084 | { |
| 2085 | overflow = true; |
| 2086 | val = wi::zero (TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2086, __FUNCTION__))->type_common.precision)); |
| 2087 | } |
| 2088 | |
| 2089 | /* See if R is less than the lower bound or greater than the |
| 2090 | upper bound. */ |
| 2091 | |
| 2092 | if (! overflow) |
| 2093 | { |
| 2094 | tree lt = TYPE_MIN_VALUE (type)((tree_check5 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2094, __FUNCTION__, (INTEGER_TYPE), (ENUMERAL_TYPE), (BOOLEAN_TYPE ), (REAL_TYPE), (FIXED_POINT_TYPE)))->type_non_common.minval ); |
| 2095 | REAL_VALUE_TYPEstruct real_value l = real_value_from_int_cst (NULL_TREE(tree) __null, lt); |
| 2096 | if (real_less (&r, &l)) |
| 2097 | { |
| 2098 | overflow = true; |
| 2099 | val = wi::to_wide (lt); |
| 2100 | } |
| 2101 | } |
| 2102 | |
| 2103 | if (! overflow) |
| 2104 | { |
| 2105 | tree ut = TYPE_MAX_VALUE (type)((tree_check5 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2105, __FUNCTION__, (INTEGER_TYPE), (ENUMERAL_TYPE), (BOOLEAN_TYPE ), (REAL_TYPE), (FIXED_POINT_TYPE)))->type_non_common.maxval ); |
| 2106 | if (ut) |
| 2107 | { |
| 2108 | REAL_VALUE_TYPEstruct real_value u = real_value_from_int_cst (NULL_TREE(tree) __null, ut); |
| 2109 | if (real_less (&u, &r)) |
| 2110 | { |
| 2111 | overflow = true; |
| 2112 | val = wi::to_wide (ut); |
| 2113 | } |
| 2114 | } |
| 2115 | } |
| 2116 | |
| 2117 | if (! overflow) |
| 2118 | val = real_to_integer (&r, &overflow, TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2118, __FUNCTION__))->type_common.precision)); |
| 2119 | |
| 2120 | t = force_fit_type (type, val, -1, overflow | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2120, __FUNCTION__))->base.public_flag)); |
| 2121 | return t; |
| 2122 | } |
| 2123 | |
| 2124 | /* A subroutine of fold_convert_const handling conversions of a |
| 2125 | FIXED_CST to an integer type. */ |
| 2126 | |
| 2127 | static tree |
| 2128 | fold_convert_const_int_from_fixed (tree type, const_tree arg1) |
| 2129 | { |
| 2130 | tree t; |
| 2131 | double_int temp, temp_trunc; |
| 2132 | scalar_mode mode; |
| 2133 | |
| 2134 | /* Right shift FIXED_CST to temp by fbit. */ |
| 2135 | temp = TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2135, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )).data; |
| 2136 | mode = TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2136, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )).mode; |
| 2137 | if (GET_MODE_FBIT (mode)mode_fbit[mode] < HOST_BITS_PER_DOUBLE_INT(2 * 64)) |
| 2138 | { |
| 2139 | temp = temp.rshift (GET_MODE_FBIT (mode)mode_fbit[mode], |
| 2140 | HOST_BITS_PER_DOUBLE_INT(2 * 64), |
| 2141 | SIGNED_FIXED_POINT_MODE_P (mode)((((enum mode_class) mode_class[mode]) == MODE_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT) || (((enum mode_class) mode_class[mode]) == MODE_ACCUM || ((enum mode_class ) mode_class[mode]) == MODE_VECTOR_ACCUM))); |
| 2142 | |
| 2143 | /* Left shift temp to temp_trunc by fbit. */ |
| 2144 | temp_trunc = temp.lshift (GET_MODE_FBIT (mode)mode_fbit[mode], |
| 2145 | HOST_BITS_PER_DOUBLE_INT(2 * 64), |
| 2146 | SIGNED_FIXED_POINT_MODE_P (mode)((((enum mode_class) mode_class[mode]) == MODE_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT) || (((enum mode_class) mode_class[mode]) == MODE_ACCUM || ((enum mode_class ) mode_class[mode]) == MODE_VECTOR_ACCUM))); |
| 2147 | } |
| 2148 | else |
| 2149 | { |
| 2150 | temp = double_int_zero(double_int::from_shwi (0)); |
| 2151 | temp_trunc = double_int_zero(double_int::from_shwi (0)); |
| 2152 | } |
| 2153 | |
| 2154 | /* If FIXED_CST is negative, we need to round the value toward 0. |
| 2155 | By checking if the fractional bits are not zero to add 1 to temp. */ |
| 2156 | if (SIGNED_FIXED_POINT_MODE_P (mode)((((enum mode_class) mode_class[mode]) == MODE_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT) || (((enum mode_class) mode_class[mode]) == MODE_ACCUM || ((enum mode_class ) mode_class[mode]) == MODE_VECTOR_ACCUM)) |
| 2157 | && temp_trunc.is_negative () |
| 2158 | && TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2158, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )).data != temp_trunc) |
| 2159 | temp += double_int_one(double_int::from_shwi (1)); |
| 2160 | |
| 2161 | /* Given a fixed-point constant, make new constant with new type, |
| 2162 | appropriately sign-extended or truncated. */ |
| 2163 | t = force_fit_type (type, temp, -1, |
| 2164 | (temp.is_negative () |
| 2165 | && (TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2165, __FUNCTION__))->base.u.bits.unsigned_flag) |
| 2166 | < TYPE_UNSIGNED (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2166, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2166, __FUNCTION__))->base.u.bits.unsigned_flag))) |
| 2167 | | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2167, __FUNCTION__))->base.public_flag)); |
| 2168 | |
| 2169 | return t; |
| 2170 | } |
| 2171 | |
| 2172 | /* A subroutine of fold_convert_const handling conversions a REAL_CST |
| 2173 | to another floating point type. */ |
| 2174 | |
| 2175 | static tree |
| 2176 | fold_convert_const_real_from_real (tree type, const_tree arg1) |
| 2177 | { |
| 2178 | REAL_VALUE_TYPEstruct real_value value; |
| 2179 | tree t; |
| 2180 | |
| 2181 | /* If the underlying modes are the same, simply treat it as |
| 2182 | copy and rebuild with TREE_REAL_CST information and the |
| 2183 | given type. */ |
| 2184 | if (TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2184, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode) == TYPE_MODE (TREE_TYPE (arg1))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2184, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2184, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2184, __FUNCTION__))->typed.type)) : (((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2184, __FUNCTION__))->typed.type))->type_common.mode)) |
| 2185 | { |
| 2186 | t = build_real (type, TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2186, __FUNCTION__, (REAL_CST)))->real_cst.value))); |
| 2187 | return t; |
| 2188 | } |
| 2189 | |
| 2190 | /* Don't perform the operation if flag_signaling_nans is on |
| 2191 | and the operand is a signaling NaN. */ |
| 2192 | if (HONOR_SNANS (arg1) |
| 2193 | && REAL_VALUE_ISSIGNALING_NAN (TREE_REAL_CST (arg1))real_issignaling_nan (&((*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2193, __FUNCTION__, (REAL_CST)))->real_cst.value))))) |
| 2194 | return NULL_TREE(tree) __null; |
| 2195 | |
| 2196 | /* With flag_rounding_math we should respect the current rounding mode |
| 2197 | unless the conversion is exact. */ |
| 2198 | if (HONOR_SIGN_DEPENDENT_ROUNDING (arg1) |
| 2199 | && !exact_real_truncate (TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2199, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode), &TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2199, __FUNCTION__, (REAL_CST)))->real_cst.value)))) |
| 2200 | return NULL_TREE(tree) __null; |
| 2201 | |
| 2202 | real_convert (&value, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2202, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode), &TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2202, __FUNCTION__, (REAL_CST)))->real_cst.value))); |
| 2203 | t = build_real (type, value); |
| 2204 | |
| 2205 | /* If converting an infinity or NAN to a representation that doesn't |
| 2206 | have one, set the overflow bit so that we can produce some kind of |
| 2207 | error message at the appropriate point if necessary. It's not the |
| 2208 | most user-friendly message, but it's better than nothing. */ |
| 2209 | if (REAL_VALUE_ISINF (TREE_REAL_CST (arg1))real_isinf (&((*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2209, __FUNCTION__, (REAL_CST)))->real_cst.value)))) |
| 2210 | && !MODE_HAS_INFINITIES (TYPE_MODE (type))((((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_VECTOR_FLOAT ) && ((real_format_for_mode[(((enum mode_class) mode_class [as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_DECIMAL_FLOAT ) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class ) mode_class[as_a <scalar_float_mode> ((mode_to_inner ( ((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_FLOAT ? ( (as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2210, __FUNCTION__)), 0)]))->has_inf)) |
| 2211 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2211, __FUNCTION__))->base.public_flag) = 1; |
| 2212 | else if (REAL_VALUE_ISNAN (TREE_REAL_CST (arg1))real_isnan (&((*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2212, __FUNCTION__, (REAL_CST)))->real_cst.value)))) |
| 2213 | && !MODE_HAS_NANS (TYPE_MODE (type))((((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_VECTOR_FLOAT ) && ((real_format_for_mode[(((enum mode_class) mode_class [as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_DECIMAL_FLOAT ) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class ) mode_class[as_a <scalar_float_mode> ((mode_to_inner ( ((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_FLOAT ? ( (as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2213, __FUNCTION__)), 0)]))->has_nans)) |
| 2214 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2214, __FUNCTION__))->base.public_flag) = 1; |
| 2215 | /* Regular overflow, conversion produced an infinity in a mode that |
| 2216 | can't represent them. */ |
| 2217 | else if (!MODE_HAS_INFINITIES (TYPE_MODE (type))((((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_DECIMAL_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_COMPLEX_FLOAT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_VECTOR_FLOAT ) && ((real_format_for_mode[(((enum mode_class) mode_class [as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_DECIMAL_FLOAT ) ? (((as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_DECIMAL_FLOAT ) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : ((enum mode_class ) mode_class[as_a <scalar_float_mode> ((mode_to_inner ( ((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))]) == MODE_FLOAT ? ( (as_a <scalar_float_mode> ((mode_to_inner (((((enum tree_code ) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) - MIN_MODE_FLOAT) : ((fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2217, __FUNCTION__)), 0)]))->has_inf) |
| 2218 | && REAL_VALUE_ISINF (value)real_isinf (&(value)) |
| 2219 | && !REAL_VALUE_ISINF (TREE_REAL_CST (arg1))real_isinf (&((*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2219, __FUNCTION__, (REAL_CST)))->real_cst.value))))) |
| 2220 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2220, __FUNCTION__))->base.public_flag) = 1; |
| 2221 | else |
| 2222 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2222, __FUNCTION__))->base.public_flag) = TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2222, __FUNCTION__))->base.public_flag); |
| 2223 | return t; |
| 2224 | } |
| 2225 | |
| 2226 | /* A subroutine of fold_convert_const handling conversions a FIXED_CST |
| 2227 | to a floating point type. */ |
| 2228 | |
| 2229 | static tree |
| 2230 | fold_convert_const_real_from_fixed (tree type, const_tree arg1) |
| 2231 | { |
| 2232 | REAL_VALUE_TYPEstruct real_value value; |
| 2233 | tree t; |
| 2234 | |
| 2235 | real_convert_from_fixed (&value, SCALAR_FLOAT_TYPE_MODE (type)(as_a <scalar_float_mode> ((tree_class_check ((type), ( tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2235, __FUNCTION__))->type_common.mode)), |
| 2236 | &TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2236, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr ))); |
| 2237 | t = build_real (type, value); |
| 2238 | |
| 2239 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2239, __FUNCTION__))->base.public_flag) = TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2239, __FUNCTION__))->base.public_flag); |
| 2240 | return t; |
| 2241 | } |
| 2242 | |
| 2243 | /* A subroutine of fold_convert_const handling conversions a FIXED_CST |
| 2244 | to another fixed-point type. */ |
| 2245 | |
| 2246 | static tree |
| 2247 | fold_convert_const_fixed_from_fixed (tree type, const_tree arg1) |
| 2248 | { |
| 2249 | FIXED_VALUE_TYPEstruct fixed_value value; |
| 2250 | tree t; |
| 2251 | bool overflow_p; |
| 2252 | |
| 2253 | overflow_p = fixed_convert (&value, SCALAR_TYPE_MODE (type)(as_a <scalar_mode> ((tree_class_check ((type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2253, __FUNCTION__))->type_common.mode)), |
| 2254 | &TREE_FIXED_CST (arg1)(*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2254, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )), TYPE_SATURATING (type)((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2254, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)); |
| 2255 | t = build_fixed (type, value); |
| 2256 | |
| 2257 | /* Propagate overflow flags. */ |
| 2258 | if (overflow_p | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2258, __FUNCTION__))->base.public_flag)) |
| 2259 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2259, __FUNCTION__))->base.public_flag) = 1; |
| 2260 | return t; |
| 2261 | } |
| 2262 | |
| 2263 | /* A subroutine of fold_convert_const handling conversions an INTEGER_CST |
| 2264 | to a fixed-point type. */ |
| 2265 | |
| 2266 | static tree |
| 2267 | fold_convert_const_fixed_from_int (tree type, const_tree arg1) |
| 2268 | { |
| 2269 | FIXED_VALUE_TYPEstruct fixed_value value; |
| 2270 | tree t; |
| 2271 | bool overflow_p; |
| 2272 | double_int di; |
| 2273 | |
| 2274 | gcc_assert (TREE_INT_CST_NUNITS (arg1) <= 2)((void)(!(((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2274, __FUNCTION__, (INTEGER_CST)))->base.u.int_length.unextended ) <= 2) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2274, __FUNCTION__), 0 : 0)); |
| 2275 | |
| 2276 | di.low = TREE_INT_CST_ELT (arg1, 0)(*tree_int_cst_elt_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2276, __FUNCTION__)); |
| 2277 | if (TREE_INT_CST_NUNITS (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2277, __FUNCTION__, (INTEGER_CST)))->base.u.int_length.unextended ) == 1) |
| 2278 | di.high = (HOST_WIDE_INTlong) di.low < 0 ? HOST_WIDE_INT_M1-1L : 0; |
| 2279 | else |
| 2280 | di.high = TREE_INT_CST_ELT (arg1, 1)(*tree_int_cst_elt_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2280, __FUNCTION__)); |
| 2281 | |
| 2282 | overflow_p = fixed_convert_from_int (&value, SCALAR_TYPE_MODE (type)(as_a <scalar_mode> ((tree_class_check ((type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2282, __FUNCTION__))->type_common.mode)), di, |
| 2283 | TYPE_UNSIGNED (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2283, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2283, __FUNCTION__))->base.u.bits.unsigned_flag), |
| 2284 | TYPE_SATURATING (type)((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2284, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)); |
| 2285 | t = build_fixed (type, value); |
| 2286 | |
| 2287 | /* Propagate overflow flags. */ |
| 2288 | if (overflow_p | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2288, __FUNCTION__))->base.public_flag)) |
| 2289 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2289, __FUNCTION__))->base.public_flag) = 1; |
| 2290 | return t; |
| 2291 | } |
| 2292 | |
| 2293 | /* A subroutine of fold_convert_const handling conversions a REAL_CST |
| 2294 | to a fixed-point type. */ |
| 2295 | |
| 2296 | static tree |
| 2297 | fold_convert_const_fixed_from_real (tree type, const_tree arg1) |
| 2298 | { |
| 2299 | FIXED_VALUE_TYPEstruct fixed_value value; |
| 2300 | tree t; |
| 2301 | bool overflow_p; |
| 2302 | |
| 2303 | overflow_p = fixed_convert_from_real (&value, SCALAR_TYPE_MODE (type)(as_a <scalar_mode> ((tree_class_check ((type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2303, __FUNCTION__))->type_common.mode)), |
| 2304 | &TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2304, __FUNCTION__, (REAL_CST)))->real_cst.value)), |
| 2305 | TYPE_SATURATING (type)((tree_not_check4 ((type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2305, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE ), (ARRAY_TYPE)))->base.u.bits.saturating_flag)); |
| 2306 | t = build_fixed (type, value); |
| 2307 | |
| 2308 | /* Propagate overflow flags. */ |
| 2309 | if (overflow_p | TREE_OVERFLOW (arg1)((tree_class_check ((arg1), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2309, __FUNCTION__))->base.public_flag)) |
| 2310 | TREE_OVERFLOW (t)((tree_class_check ((t), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2310, __FUNCTION__))->base.public_flag) = 1; |
| 2311 | return t; |
| 2312 | } |
| 2313 | |
| 2314 | /* Attempt to fold type conversion operation CODE of expression ARG1 to |
| 2315 | type TYPE. If no simplification can be done return NULL_TREE. */ |
| 2316 | |
| 2317 | static tree |
| 2318 | fold_convert_const (enum tree_code code, tree type, tree arg1) |
| 2319 | { |
| 2320 | tree arg_type = TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2320, __FUNCTION__))->typed.type); |
| 2321 | if (arg_type == type) |
| 2322 | return arg1; |
| 2323 | |
| 2324 | /* We can't widen types, since the runtime value could overflow the |
| 2325 | original type before being extended to the new type. */ |
| 2326 | if (POLY_INT_CST_P (arg1)(1 > 1 && ((enum tree_code) (arg1)->base.code) == POLY_INT_CST) |
| 2327 | && (POINTER_TYPE_P (type)(((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) || INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE)) |
| 2328 | && TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2328, __FUNCTION__))->type_common.precision) <= TYPE_PRECISION (arg_type)((tree_class_check ((arg_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2328, __FUNCTION__))->type_common.precision)) |
| 2329 | return build_poly_int_cst (type, |
| 2330 | poly_wide_int::from (poly_int_cst_value (arg1), |
| 2331 | TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2331, __FUNCTION__))->type_common.precision), |
| 2332 | TYPE_SIGN (arg_type)((signop) ((tree_class_check ((arg_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2332, __FUNCTION__))->base.u.bits.unsigned_flag)))); |
| 2333 | |
| 2334 | if (POINTER_TYPE_P (type)(((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE) || INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE) |
| 2335 | || TREE_CODE (type)((enum tree_code) (type)->base.code) == OFFSET_TYPE) |
| 2336 | { |
| 2337 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 2338 | return fold_convert_const_int_from_int (type, arg1); |
| 2339 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == REAL_CST) |
| 2340 | return fold_convert_const_int_from_real (code, type, arg1); |
| 2341 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == FIXED_CST) |
| 2342 | return fold_convert_const_int_from_fixed (type, arg1); |
| 2343 | } |
| 2344 | else if (TREE_CODE (type)((enum tree_code) (type)->base.code) == REAL_TYPE) |
| 2345 | { |
| 2346 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 2347 | { |
| 2348 | tree res = build_real_from_int_cst (type, arg1); |
| 2349 | /* Avoid the folding if flag_rounding_math is on and the |
| 2350 | conversion is not exact. */ |
| 2351 | if (HONOR_SIGN_DEPENDENT_ROUNDING (type)) |
| 2352 | { |
| 2353 | bool fail = false; |
| 2354 | wide_int w = real_to_integer (&TREE_REAL_CST (res)(*(&(tree_check ((res), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2354, __FUNCTION__, (REAL_CST)))->real_cst.value)), &fail, |
| 2355 | TYPE_PRECISION (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2355, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2355, __FUNCTION__))->type_common.precision)); |
| 2356 | if (fail || wi::ne_p (w, wi::to_wide (arg1))) |
| 2357 | return NULL_TREE(tree) __null; |
| 2358 | } |
| 2359 | return res; |
| 2360 | } |
| 2361 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == REAL_CST) |
| 2362 | return fold_convert_const_real_from_real (type, arg1); |
| 2363 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == FIXED_CST) |
| 2364 | return fold_convert_const_real_from_fixed (type, arg1); |
| 2365 | } |
| 2366 | else if (TREE_CODE (type)((enum tree_code) (type)->base.code) == FIXED_POINT_TYPE) |
| 2367 | { |
| 2368 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == FIXED_CST) |
| 2369 | return fold_convert_const_fixed_from_fixed (type, arg1); |
| 2370 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 2371 | return fold_convert_const_fixed_from_int (type, arg1); |
| 2372 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == REAL_CST) |
| 2373 | return fold_convert_const_fixed_from_real (type, arg1); |
| 2374 | } |
| 2375 | else if (TREE_CODE (type)((enum tree_code) (type)->base.code) == VECTOR_TYPE) |
| 2376 | { |
| 2377 | if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == VECTOR_CST |
| 2378 | && known_eq (TYPE_VECTOR_SUBPARTS (type), VECTOR_CST_NELTS (arg1))(!maybe_ne (TYPE_VECTOR_SUBPARTS (type), (TYPE_VECTOR_SUBPARTS (((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2378, __FUNCTION__))->typed.type)))))) |
| 2379 | { |
| 2380 | tree elttype = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2380, __FUNCTION__))->typed.type); |
| 2381 | tree arg1_elttype = TREE_TYPE (TREE_TYPE (arg1))((contains_struct_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2381, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2381, __FUNCTION__))->typed.type); |
| 2382 | /* We can't handle steps directly when extending, since the |
| 2383 | values need to wrap at the original precision first. */ |
| 2384 | bool step_ok_p |
| 2385 | = (INTEGRAL_TYPE_P (elttype)(((enum tree_code) (elttype)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (elttype)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (elttype)->base.code) == INTEGER_TYPE) |
| 2386 | && INTEGRAL_TYPE_P (arg1_elttype)(((enum tree_code) (arg1_elttype)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (arg1_elttype)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (arg1_elttype)->base.code) == INTEGER_TYPE ) |
| 2387 | && TYPE_PRECISION (elttype)((tree_class_check ((elttype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2387, __FUNCTION__))->type_common.precision) <= TYPE_PRECISION (arg1_elttype)((tree_class_check ((arg1_elttype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2387, __FUNCTION__))->type_common.precision)); |
| 2388 | tree_vector_builder v; |
| 2389 | if (!v.new_unary_operation (type, arg1, step_ok_p)) |
| 2390 | return NULL_TREE(tree) __null; |
| 2391 | unsigned int len = v.encoded_nelts (); |
| 2392 | for (unsigned int i = 0; i < len; ++i) |
| 2393 | { |
| 2394 | tree elt = VECTOR_CST_ELT (arg1, i)vector_cst_elt (arg1, i); |
| 2395 | tree cvt = fold_convert_const (code, elttype, elt); |
| 2396 | if (cvt == NULL_TREE(tree) __null) |
| 2397 | return NULL_TREE(tree) __null; |
| 2398 | v.quick_push (cvt); |
| 2399 | } |
| 2400 | return v.build (); |
| 2401 | } |
| 2402 | } |
| 2403 | return NULL_TREE(tree) __null; |
| 2404 | } |
| 2405 | |
| 2406 | /* Construct a vector of zero elements of vector type TYPE. */ |
| 2407 | |
| 2408 | static tree |
| 2409 | build_zero_vector (tree type) |
| 2410 | { |
| 2411 | tree t; |
| 2412 | |
| 2413 | t = fold_convert_const (NOP_EXPR, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2413, __FUNCTION__))->typed.type), integer_zero_nodeglobal_trees[TI_INTEGER_ZERO]); |
| 2414 | return build_vector_from_val (type, t); |
| 2415 | } |
| 2416 | |
| 2417 | /* Returns true, if ARG is convertible to TYPE using a NOP_EXPR. */ |
| 2418 | |
| 2419 | bool |
| 2420 | fold_convertible_p (const_tree type, const_tree arg) |
| 2421 | { |
| 2422 | const_tree orig = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2422, __FUNCTION__))->typed.type); |
| 2423 | |
| 2424 | if (type == orig) |
| 2425 | return true; |
| 2426 | |
| 2427 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == ERROR_MARK |
| 2428 | || TREE_CODE (type)((enum tree_code) (type)->base.code) == ERROR_MARK |
| 2429 | || TREE_CODE (orig)((enum tree_code) (orig)->base.code) == ERROR_MARK) |
| 2430 | return false; |
| 2431 | |
| 2432 | if (TYPE_MAIN_VARIANT (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2432, __FUNCTION__))->type_common.main_variant) == TYPE_MAIN_VARIANT (orig)((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2432, __FUNCTION__))->type_common.main_variant)) |
| 2433 | return true; |
| 2434 | |
| 2435 | switch (TREE_CODE (type)((enum tree_code) (type)->base.code)) |
| 2436 | { |
| 2437 | case INTEGER_TYPE: case ENUMERAL_TYPE: case BOOLEAN_TYPE: |
| 2438 | case POINTER_TYPE: case REFERENCE_TYPE: |
| 2439 | case OFFSET_TYPE: |
| 2440 | return (INTEGRAL_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (orig)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (orig)->base.code) == INTEGER_TYPE) |
| 2441 | || (POINTER_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == POINTER_TYPE || ( (enum tree_code) (orig)->base.code) == REFERENCE_TYPE) |
| 2442 | && TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2442, __FUNCTION__))->type_common.precision) <= TYPE_PRECISION (orig)((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2442, __FUNCTION__))->type_common.precision)) |
| 2443 | || TREE_CODE (orig)((enum tree_code) (orig)->base.code) == OFFSET_TYPE); |
| 2444 | |
| 2445 | case REAL_TYPE: |
| 2446 | case FIXED_POINT_TYPE: |
| 2447 | case VOID_TYPE: |
| 2448 | return TREE_CODE (type)((enum tree_code) (type)->base.code) == TREE_CODE (orig)((enum tree_code) (orig)->base.code); |
| 2449 | |
| 2450 | case VECTOR_TYPE: |
| 2451 | return (VECTOR_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == VECTOR_TYPE) |
| 2452 | && known_eq (TYPE_VECTOR_SUBPARTS (type),(!maybe_ne (TYPE_VECTOR_SUBPARTS (type), TYPE_VECTOR_SUBPARTS (orig))) |
| 2453 | TYPE_VECTOR_SUBPARTS (orig))(!maybe_ne (TYPE_VECTOR_SUBPARTS (type), TYPE_VECTOR_SUBPARTS (orig))) |
| 2454 | && tree_int_cst_equal (TYPE_SIZE (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2454, __FUNCTION__))->type_common.size), TYPE_SIZE (orig)((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2454, __FUNCTION__))->type_common.size))); |
| 2455 | |
| 2456 | default: |
| 2457 | return false; |
| 2458 | } |
| 2459 | } |
| 2460 | |
| 2461 | /* Convert expression ARG to type TYPE. Used by the middle-end for |
| 2462 | simple conversions in preference to calling the front-end's convert. */ |
| 2463 | |
| 2464 | tree |
| 2465 | fold_convert_loc (location_t loc, tree type, tree arg) |
| 2466 | { |
| 2467 | tree orig = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2467, __FUNCTION__))->typed.type); |
| 2468 | tree tem; |
| 2469 | |
| 2470 | if (type == orig) |
| 2471 | return arg; |
| 2472 | |
| 2473 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == ERROR_MARK |
| 2474 | || TREE_CODE (type)((enum tree_code) (type)->base.code) == ERROR_MARK |
| 2475 | || TREE_CODE (orig)((enum tree_code) (orig)->base.code) == ERROR_MARK) |
| 2476 | return error_mark_nodeglobal_trees[TI_ERROR_MARK]; |
| 2477 | |
| 2478 | switch (TREE_CODE (type)((enum tree_code) (type)->base.code)) |
| 2479 | { |
| 2480 | case POINTER_TYPE: |
| 2481 | case REFERENCE_TYPE: |
| 2482 | /* Handle conversions between pointers to different address spaces. */ |
| 2483 | if (POINTER_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == POINTER_TYPE || ( (enum tree_code) (orig)->base.code) == REFERENCE_TYPE) |
| 2484 | && (TYPE_ADDR_SPACE (TREE_TYPE (type))((tree_class_check ((((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2484, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2484, __FUNCTION__))->base.u.bits.address_space) |
| 2485 | != TYPE_ADDR_SPACE (TREE_TYPE (orig))((tree_class_check ((((contains_struct_check ((orig), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2485, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2485, __FUNCTION__))->base.u.bits.address_space))) |
| 2486 | return fold_build1_loc (loc, ADDR_SPACE_CONVERT_EXPR, type, arg); |
| 2487 | /* fall through */ |
| 2488 | |
| 2489 | case INTEGER_TYPE: case ENUMERAL_TYPE: case BOOLEAN_TYPE: |
| 2490 | case OFFSET_TYPE: |
| 2491 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == INTEGER_CST) |
| 2492 | { |
| 2493 | tem = fold_convert_const (NOP_EXPR, type, arg); |
| 2494 | if (tem != NULL_TREE(tree) __null) |
| 2495 | return tem; |
| 2496 | } |
| 2497 | if (INTEGRAL_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (orig)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (orig)->base.code) == INTEGER_TYPE) || POINTER_TYPE_P (orig)(((enum tree_code) (orig)->base.code) == POINTER_TYPE || ( (enum tree_code) (orig)->base.code) == REFERENCE_TYPE) |
| 2498 | || TREE_CODE (orig)((enum tree_code) (orig)->base.code) == OFFSET_TYPE) |
| 2499 | return fold_build1_loc (loc, NOP_EXPR, type, arg); |
| 2500 | if (TREE_CODE (orig)((enum tree_code) (orig)->base.code) == COMPLEX_TYPE) |
| 2501 | return fold_convert_loc (loc, type, |
| 2502 | fold_build1_loc (loc, REALPART_EXPR, |
| 2503 | TREE_TYPE (orig)((contains_struct_check ((orig), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2503, __FUNCTION__))->typed.type), arg)); |
| 2504 | gcc_assert (TREE_CODE (orig) == VECTOR_TYPE((void)(!(((enum tree_code) (orig)->base.code) == VECTOR_TYPE && tree_int_cst_equal (((tree_class_check ((type), ( tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__))->type_common.size), ((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__))->type_common.size))) ? fancy_abort ( "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__), 0 : 0)) |
| 2505 | && tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (orig)))((void)(!(((enum tree_code) (orig)->base.code) == VECTOR_TYPE && tree_int_cst_equal (((tree_class_check ((type), ( tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__))->type_common.size), ((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__))->type_common.size))) ? fancy_abort ( "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2505, __FUNCTION__), 0 : 0)); |
| 2506 | return fold_build1_loc (loc, VIEW_CONVERT_EXPR, type, arg); |
| 2507 | |
| 2508 | case REAL_TYPE: |
| 2509 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == INTEGER_CST) |
| 2510 | { |
| 2511 | tem = fold_convert_const (FLOAT_EXPR, type, arg); |
| 2512 | if (tem != NULL_TREE(tree) __null) |
| 2513 | return tem; |
| 2514 | } |
| 2515 | else if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == REAL_CST) |
| 2516 | { |
| 2517 | tem = fold_convert_const (NOP_EXPR, type, arg); |
| 2518 | if (tem != NULL_TREE(tree) __null) |
| 2519 | return tem; |
| 2520 | } |
| 2521 | else if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == FIXED_CST) |
| 2522 | { |
| 2523 | tem = fold_convert_const (FIXED_CONVERT_EXPR, type, arg); |
| 2524 | if (tem != NULL_TREE(tree) __null) |
| 2525 | return tem; |
| 2526 | } |
| 2527 | |
| 2528 | switch (TREE_CODE (orig)((enum tree_code) (orig)->base.code)) |
| 2529 | { |
| 2530 | case INTEGER_TYPE: |
| 2531 | case BOOLEAN_TYPE: case ENUMERAL_TYPE: |
| 2532 | case POINTER_TYPE: case REFERENCE_TYPE: |
| 2533 | return fold_build1_loc (loc, FLOAT_EXPR, type, arg); |
| 2534 | |
| 2535 | case REAL_TYPE: |
| 2536 | return fold_build1_loc (loc, NOP_EXPR, type, arg); |
| 2537 | |
| 2538 | case FIXED_POINT_TYPE: |
| 2539 | return fold_build1_loc (loc, FIXED_CONVERT_EXPR, type, arg); |
| 2540 | |
| 2541 | case COMPLEX_TYPE: |
| 2542 | tem = fold_build1_loc (loc, REALPART_EXPR, TREE_TYPE (orig)((contains_struct_check ((orig), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2542, __FUNCTION__))->typed.type), arg); |
| 2543 | return fold_convert_loc (loc, type, tem); |
| 2544 | |
| 2545 | default: |
| 2546 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2546, __FUNCTION__)); |
| 2547 | } |
| 2548 | |
| 2549 | case FIXED_POINT_TYPE: |
| 2550 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == FIXED_CST || TREE_CODE (arg)((enum tree_code) (arg)->base.code) == INTEGER_CST |
| 2551 | || TREE_CODE (arg)((enum tree_code) (arg)->base.code) == REAL_CST) |
| 2552 | { |
| 2553 | tem = fold_convert_const (FIXED_CONVERT_EXPR, type, arg); |
| 2554 | if (tem != NULL_TREE(tree) __null) |
| 2555 | goto fold_convert_exit; |
| 2556 | } |
| 2557 | |
| 2558 | switch (TREE_CODE (orig)((enum tree_code) (orig)->base.code)) |
| 2559 | { |
| 2560 | case FIXED_POINT_TYPE: |
| 2561 | case INTEGER_TYPE: |
| 2562 | case ENUMERAL_TYPE: |
| 2563 | case BOOLEAN_TYPE: |
| 2564 | case REAL_TYPE: |
| 2565 | return fold_build1_loc (loc, FIXED_CONVERT_EXPR, type, arg); |
| 2566 | |
| 2567 | case COMPLEX_TYPE: |
| 2568 | tem = fold_build1_loc (loc, REALPART_EXPR, TREE_TYPE (orig)((contains_struct_check ((orig), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2568, __FUNCTION__))->typed.type), arg); |
| 2569 | return fold_convert_loc (loc, type, tem); |
| 2570 | |
| 2571 | default: |
| 2572 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2572, __FUNCTION__)); |
| 2573 | } |
| 2574 | |
| 2575 | case COMPLEX_TYPE: |
| 2576 | switch (TREE_CODE (orig)((enum tree_code) (orig)->base.code)) |
| 2577 | { |
| 2578 | case INTEGER_TYPE: |
| 2579 | case BOOLEAN_TYPE: case ENUMERAL_TYPE: |
| 2580 | case POINTER_TYPE: case REFERENCE_TYPE: |
| 2581 | case REAL_TYPE: |
| 2582 | case FIXED_POINT_TYPE: |
| 2583 | return fold_build2_loc (loc, COMPLEX_EXPR, type, |
| 2584 | fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2584, __FUNCTION__))->typed.type), arg), |
| 2585 | fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2585, __FUNCTION__))->typed.type), |
| 2586 | integer_zero_nodeglobal_trees[TI_INTEGER_ZERO])); |
| 2587 | case COMPLEX_TYPE: |
| 2588 | { |
| 2589 | tree rpart, ipart; |
| 2590 | |
| 2591 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == COMPLEX_EXPR) |
| 2592 | { |
| 2593 | rpart = fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2593, __FUNCTION__))->typed.type), |
| 2594 | TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2594, __FUNCTION__)))))); |
| 2595 | ipart = fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2595, __FUNCTION__))->typed.type), |
| 2596 | TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2596, __FUNCTION__)))))); |
| 2597 | return fold_build2_loc (loc, COMPLEX_EXPR, type, rpart, ipart); |
| 2598 | } |
| 2599 | |
| 2600 | arg = save_expr (arg); |
| 2601 | rpart = fold_build1_loc (loc, REALPART_EXPR, TREE_TYPE (orig)((contains_struct_check ((orig), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2601, __FUNCTION__))->typed.type), arg); |
| 2602 | ipart = fold_build1_loc (loc, IMAGPART_EXPR, TREE_TYPE (orig)((contains_struct_check ((orig), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2602, __FUNCTION__))->typed.type), arg); |
| 2603 | rpart = fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2603, __FUNCTION__))->typed.type), rpart); |
| 2604 | ipart = fold_convert_loc (loc, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2604, __FUNCTION__))->typed.type), ipart); |
| 2605 | return fold_build2_loc (loc, COMPLEX_EXPR, type, rpart, ipart); |
| 2606 | } |
| 2607 | |
| 2608 | default: |
| 2609 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2609, __FUNCTION__)); |
| 2610 | } |
| 2611 | |
| 2612 | case VECTOR_TYPE: |
| 2613 | if (integer_zerop (arg)) |
| 2614 | return build_zero_vector (type); |
| 2615 | gcc_assert (tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (orig)))((void)(!(tree_int_cst_equal (((tree_class_check ((type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2615, __FUNCTION__))->type_common.size), ((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2615, __FUNCTION__))->type_common.size))) ? fancy_abort ( "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2615, __FUNCTION__), 0 : 0)); |
| 2616 | gcc_assert (INTEGRAL_TYPE_P (orig) || POINTER_TYPE_P (orig)((void)(!((((enum tree_code) (orig)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (orig)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (orig)->base.code) == INTEGER_TYPE) || ( ((enum tree_code) (orig)->base.code) == POINTER_TYPE || (( enum tree_code) (orig)->base.code) == REFERENCE_TYPE) || ( (enum tree_code) (orig)->base.code) == VECTOR_TYPE) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2617, __FUNCTION__), 0 : 0)) |
| 2617 | || TREE_CODE (orig) == VECTOR_TYPE)((void)(!((((enum tree_code) (orig)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (orig)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (orig)->base.code) == INTEGER_TYPE) || ( ((enum tree_code) (orig)->base.code) == POINTER_TYPE || (( enum tree_code) (orig)->base.code) == REFERENCE_TYPE) || ( (enum tree_code) (orig)->base.code) == VECTOR_TYPE) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2617, __FUNCTION__), 0 : 0)); |
| 2618 | return fold_build1_loc (loc, VIEW_CONVERT_EXPR, type, arg); |
| 2619 | |
| 2620 | case VOID_TYPE: |
| 2621 | tem = fold_ignored_result (arg); |
| 2622 | return fold_build1_loc (loc, NOP_EXPR, type, tem); |
| 2623 | |
| 2624 | default: |
| 2625 | if (TYPE_MAIN_VARIANT (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2625, __FUNCTION__))->type_common.main_variant) == TYPE_MAIN_VARIANT (orig)((tree_class_check ((orig), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2625, __FUNCTION__))->type_common.main_variant)) |
| 2626 | return fold_build1_loc (loc, NOP_EXPR, type, arg); |
| 2627 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2627, __FUNCTION__)); |
| 2628 | } |
| 2629 | fold_convert_exit: |
| 2630 | tem = protected_set_expr_location_unshare (tem, loc); |
| 2631 | return tem; |
| 2632 | } |
| 2633 | |
| 2634 | /* Return false if expr can be assumed not to be an lvalue, true |
| 2635 | otherwise. */ |
| 2636 | |
| 2637 | static bool |
| 2638 | maybe_lvalue_p (const_tree x) |
| 2639 | { |
| 2640 | /* We only need to wrap lvalue tree codes. */ |
| 2641 | switch (TREE_CODE (x)((enum tree_code) (x)->base.code)) |
| 2642 | { |
| 2643 | case VAR_DECL: |
| 2644 | case PARM_DECL: |
| 2645 | case RESULT_DECL: |
| 2646 | case LABEL_DECL: |
| 2647 | case FUNCTION_DECL: |
| 2648 | case SSA_NAME: |
| 2649 | case COMPOUND_LITERAL_EXPR: |
| 2650 | |
| 2651 | case COMPONENT_REF: |
| 2652 | case MEM_REF: |
| 2653 | case INDIRECT_REF: |
| 2654 | case ARRAY_REF: |
| 2655 | case ARRAY_RANGE_REF: |
| 2656 | case BIT_FIELD_REF: |
| 2657 | case OBJ_TYPE_REF: |
| 2658 | |
| 2659 | case REALPART_EXPR: |
| 2660 | case IMAGPART_EXPR: |
| 2661 | case PREINCREMENT_EXPR: |
| 2662 | case PREDECREMENT_EXPR: |
| 2663 | case SAVE_EXPR: |
| 2664 | case TRY_CATCH_EXPR: |
| 2665 | case WITH_CLEANUP_EXPR: |
| 2666 | case COMPOUND_EXPR: |
| 2667 | case MODIFY_EXPR: |
| 2668 | case TARGET_EXPR: |
| 2669 | case COND_EXPR: |
| 2670 | case BIND_EXPR: |
| 2671 | case VIEW_CONVERT_EXPR: |
| 2672 | break; |
| 2673 | |
| 2674 | default: |
| 2675 | /* Assume the worst for front-end tree codes. */ |
| 2676 | if ((int)TREE_CODE (x)((enum tree_code) (x)->base.code) >= NUM_TREE_CODES((int) LAST_AND_UNUSED_TREE_CODE)) |
| 2677 | break; |
| 2678 | return false; |
| 2679 | } |
| 2680 | |
| 2681 | return true; |
| 2682 | } |
| 2683 | |
| 2684 | /* Return an expr equal to X but certainly not valid as an lvalue. */ |
| 2685 | |
| 2686 | tree |
| 2687 | non_lvalue_loc (location_t loc, tree x) |
| 2688 | { |
| 2689 | /* While we are in GIMPLE, NON_LVALUE_EXPR doesn't mean anything to |
| 2690 | us. */ |
| 2691 | if (in_gimple_form) |
| 2692 | return x; |
| 2693 | |
| 2694 | if (! maybe_lvalue_p (x)) |
| 2695 | return x; |
| 2696 | return build1_loc (loc, NON_LVALUE_EXPR, TREE_TYPE (x)((contains_struct_check ((x), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2696, __FUNCTION__))->typed.type), x); |
| 2697 | } |
| 2698 | |
| 2699 | /* Given a tree comparison code, return the code that is the logical inverse. |
| 2700 | It is generally not safe to do this for floating-point comparisons, except |
| 2701 | for EQ_EXPR, NE_EXPR, ORDERED_EXPR and UNORDERED_EXPR, so we return |
| 2702 | ERROR_MARK in this case. */ |
| 2703 | |
| 2704 | enum tree_code |
| 2705 | invert_tree_comparison (enum tree_code code, bool honor_nans) |
| 2706 | { |
| 2707 | if (honor_nans && flag_trapping_mathglobal_options.x_flag_trapping_math && code != EQ_EXPR && code != NE_EXPR |
| 2708 | && code != ORDERED_EXPR && code != UNORDERED_EXPR) |
| 2709 | return ERROR_MARK; |
| 2710 | |
| 2711 | switch (code) |
| 2712 | { |
| 2713 | case EQ_EXPR: |
| 2714 | return NE_EXPR; |
| 2715 | case NE_EXPR: |
| 2716 | return EQ_EXPR; |
| 2717 | case GT_EXPR: |
| 2718 | return honor_nans ? UNLE_EXPR : LE_EXPR; |
| 2719 | case GE_EXPR: |
| 2720 | return honor_nans ? UNLT_EXPR : LT_EXPR; |
| 2721 | case LT_EXPR: |
| 2722 | return honor_nans ? UNGE_EXPR : GE_EXPR; |
| 2723 | case LE_EXPR: |
| 2724 | return honor_nans ? UNGT_EXPR : GT_EXPR; |
| 2725 | case LTGT_EXPR: |
| 2726 | return UNEQ_EXPR; |
| 2727 | case UNEQ_EXPR: |
| 2728 | return LTGT_EXPR; |
| 2729 | case UNGT_EXPR: |
| 2730 | return LE_EXPR; |
| 2731 | case UNGE_EXPR: |
| 2732 | return LT_EXPR; |
| 2733 | case UNLT_EXPR: |
| 2734 | return GE_EXPR; |
| 2735 | case UNLE_EXPR: |
| 2736 | return GT_EXPR; |
| 2737 | case ORDERED_EXPR: |
| 2738 | return UNORDERED_EXPR; |
| 2739 | case UNORDERED_EXPR: |
| 2740 | return ORDERED_EXPR; |
| 2741 | default: |
| 2742 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2742, __FUNCTION__)); |
| 2743 | } |
| 2744 | } |
| 2745 | |
| 2746 | /* Similar, but return the comparison that results if the operands are |
| 2747 | swapped. This is safe for floating-point. */ |
| 2748 | |
| 2749 | enum tree_code |
| 2750 | swap_tree_comparison (enum tree_code code) |
| 2751 | { |
| 2752 | switch (code) |
| 2753 | { |
| 2754 | case EQ_EXPR: |
| 2755 | case NE_EXPR: |
| 2756 | case ORDERED_EXPR: |
| 2757 | case UNORDERED_EXPR: |
| 2758 | case LTGT_EXPR: |
| 2759 | case UNEQ_EXPR: |
| 2760 | return code; |
| 2761 | case GT_EXPR: |
| 2762 | return LT_EXPR; |
| 2763 | case GE_EXPR: |
| 2764 | return LE_EXPR; |
| 2765 | case LT_EXPR: |
| 2766 | return GT_EXPR; |
| 2767 | case LE_EXPR: |
| 2768 | return GE_EXPR; |
| 2769 | case UNGT_EXPR: |
| 2770 | return UNLT_EXPR; |
| 2771 | case UNGE_EXPR: |
| 2772 | return UNLE_EXPR; |
| 2773 | case UNLT_EXPR: |
| 2774 | return UNGT_EXPR; |
| 2775 | case UNLE_EXPR: |
| 2776 | return UNGE_EXPR; |
| 2777 | default: |
| 2778 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2778, __FUNCTION__)); |
| 2779 | } |
| 2780 | } |
| 2781 | |
| 2782 | |
| 2783 | /* Convert a comparison tree code from an enum tree_code representation |
| 2784 | into a compcode bit-based encoding. This function is the inverse of |
| 2785 | compcode_to_comparison. */ |
| 2786 | |
| 2787 | static enum comparison_code |
| 2788 | comparison_to_compcode (enum tree_code code) |
| 2789 | { |
| 2790 | switch (code) |
| 2791 | { |
| 2792 | case LT_EXPR: |
| 2793 | return COMPCODE_LT; |
| 2794 | case EQ_EXPR: |
| 2795 | return COMPCODE_EQ; |
| 2796 | case LE_EXPR: |
| 2797 | return COMPCODE_LE; |
| 2798 | case GT_EXPR: |
| 2799 | return COMPCODE_GT; |
| 2800 | case NE_EXPR: |
| 2801 | return COMPCODE_NE; |
| 2802 | case GE_EXPR: |
| 2803 | return COMPCODE_GE; |
| 2804 | case ORDERED_EXPR: |
| 2805 | return COMPCODE_ORD; |
| 2806 | case UNORDERED_EXPR: |
| 2807 | return COMPCODE_UNORD; |
| 2808 | case UNLT_EXPR: |
| 2809 | return COMPCODE_UNLT; |
| 2810 | case UNEQ_EXPR: |
| 2811 | return COMPCODE_UNEQ; |
| 2812 | case UNLE_EXPR: |
| 2813 | return COMPCODE_UNLE; |
| 2814 | case UNGT_EXPR: |
| 2815 | return COMPCODE_UNGT; |
| 2816 | case LTGT_EXPR: |
| 2817 | return COMPCODE_LTGT; |
| 2818 | case UNGE_EXPR: |
| 2819 | return COMPCODE_UNGE; |
| 2820 | default: |
| 2821 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2821, __FUNCTION__)); |
| 2822 | } |
| 2823 | } |
| 2824 | |
| 2825 | /* Convert a compcode bit-based encoding of a comparison operator back |
| 2826 | to GCC's enum tree_code representation. This function is the |
| 2827 | inverse of comparison_to_compcode. */ |
| 2828 | |
| 2829 | static enum tree_code |
| 2830 | compcode_to_comparison (enum comparison_code code) |
| 2831 | { |
| 2832 | switch (code) |
| 2833 | { |
| 2834 | case COMPCODE_LT: |
| 2835 | return LT_EXPR; |
| 2836 | case COMPCODE_EQ: |
| 2837 | return EQ_EXPR; |
| 2838 | case COMPCODE_LE: |
| 2839 | return LE_EXPR; |
| 2840 | case COMPCODE_GT: |
| 2841 | return GT_EXPR; |
| 2842 | case COMPCODE_NE: |
| 2843 | return NE_EXPR; |
| 2844 | case COMPCODE_GE: |
| 2845 | return GE_EXPR; |
| 2846 | case COMPCODE_ORD: |
| 2847 | return ORDERED_EXPR; |
| 2848 | case COMPCODE_UNORD: |
| 2849 | return UNORDERED_EXPR; |
| 2850 | case COMPCODE_UNLT: |
| 2851 | return UNLT_EXPR; |
| 2852 | case COMPCODE_UNEQ: |
| 2853 | return UNEQ_EXPR; |
| 2854 | case COMPCODE_UNLE: |
| 2855 | return UNLE_EXPR; |
| 2856 | case COMPCODE_UNGT: |
| 2857 | return UNGT_EXPR; |
| 2858 | case COMPCODE_LTGT: |
| 2859 | return LTGT_EXPR; |
| 2860 | case COMPCODE_UNGE: |
| 2861 | return UNGE_EXPR; |
| 2862 | default: |
| 2863 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2863, __FUNCTION__)); |
| 2864 | } |
| 2865 | } |
| 2866 | |
| 2867 | /* Return true if COND1 tests the opposite condition of COND2. */ |
| 2868 | |
| 2869 | bool |
| 2870 | inverse_conditions_p (const_tree cond1, const_tree cond2) |
| 2871 | { |
| 2872 | return (COMPARISON_CLASS_P (cond1)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (cond1)->base.code))] == tcc_comparison) |
| 2873 | && COMPARISON_CLASS_P (cond2)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (cond2)->base.code))] == tcc_comparison) |
| 2874 | && (invert_tree_comparison |
| 2875 | (TREE_CODE (cond1)((enum tree_code) (cond1)->base.code), |
| 2876 | HONOR_NANS (TREE_OPERAND (cond1, 0)(*((const_cast<tree*> (tree_operand_check ((cond1), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2876, __FUNCTION__))))))) == TREE_CODE (cond2)((enum tree_code) (cond2)->base.code)) |
| 2877 | && operand_equal_p (TREE_OPERAND (cond1, 0)(*((const_cast<tree*> (tree_operand_check ((cond1), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2877, __FUNCTION__))))), |
| 2878 | TREE_OPERAND (cond2, 0)(*((const_cast<tree*> (tree_operand_check ((cond2), (0) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2878, __FUNCTION__))))), 0) |
| 2879 | && operand_equal_p (TREE_OPERAND (cond1, 1)(*((const_cast<tree*> (tree_operand_check ((cond1), (1) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2879, __FUNCTION__))))), |
| 2880 | TREE_OPERAND (cond2, 1)(*((const_cast<tree*> (tree_operand_check ((cond2), (1) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 2880, __FUNCTION__))))), 0)); |
| 2881 | } |
| 2882 | |
| 2883 | /* Return a tree for the comparison which is the combination of |
| 2884 | doing the AND or OR (depending on CODE) of the two operations LCODE |
| 2885 | and RCODE on the identical operands LL_ARG and LR_ARG. Take into account |
| 2886 | the possibility of trapping if the mode has NaNs, and return NULL_TREE |
| 2887 | if this makes the transformation invalid. */ |
| 2888 | |
| 2889 | tree |
| 2890 | combine_comparisons (location_t loc, |
| 2891 | enum tree_code code, enum tree_code lcode, |
| 2892 | enum tree_code rcode, tree truth_type, |
| 2893 | tree ll_arg, tree lr_arg) |
| 2894 | { |
| 2895 | bool honor_nans = HONOR_NANS (ll_arg); |
| 2896 | enum comparison_code lcompcode = comparison_to_compcode (lcode); |
| 2897 | enum comparison_code rcompcode = comparison_to_compcode (rcode); |
| 2898 | int compcode; |
| 2899 | |
| 2900 | switch (code) |
| 2901 | { |
| 2902 | case TRUTH_AND_EXPR: case TRUTH_ANDIF_EXPR: |
| 2903 | compcode = lcompcode & rcompcode; |
| 2904 | break; |
| 2905 | |
| 2906 | case TRUTH_OR_EXPR: case TRUTH_ORIF_EXPR: |
| 2907 | compcode = lcompcode | rcompcode; |
| 2908 | break; |
| 2909 | |
| 2910 | default: |
| 2911 | return NULL_TREE(tree) __null; |
| 2912 | } |
| 2913 | |
| 2914 | if (!honor_nans) |
| 2915 | { |
| 2916 | /* Eliminate unordered comparisons, as well as LTGT and ORD |
| 2917 | which are not used unless the mode has NaNs. */ |
| 2918 | compcode &= ~COMPCODE_UNORD; |
| 2919 | if (compcode == COMPCODE_LTGT) |
| 2920 | compcode = COMPCODE_NE; |
| 2921 | else if (compcode == COMPCODE_ORD) |
| 2922 | compcode = COMPCODE_TRUE; |
| 2923 | } |
| 2924 | else if (flag_trapping_mathglobal_options.x_flag_trapping_math) |
| 2925 | { |
| 2926 | /* Check that the original operation and the optimized ones will trap |
| 2927 | under the same condition. */ |
| 2928 | bool ltrap = (lcompcode & COMPCODE_UNORD) == 0 |
| 2929 | && (lcompcode != COMPCODE_EQ) |
| 2930 | && (lcompcode != COMPCODE_ORD); |
| 2931 | bool rtrap = (rcompcode & COMPCODE_UNORD) == 0 |
| 2932 | && (rcompcode != COMPCODE_EQ) |
| 2933 | && (rcompcode != COMPCODE_ORD); |
| 2934 | bool trap = (compcode & COMPCODE_UNORD) == 0 |
| 2935 | && (compcode != COMPCODE_EQ) |
| 2936 | && (compcode != COMPCODE_ORD); |
| 2937 | |
| 2938 | /* In a short-circuited boolean expression the LHS might be |
| 2939 | such that the RHS, if evaluated, will never trap. For |
| 2940 | example, in ORD (x, y) && (x < y), we evaluate the RHS only |
| 2941 | if neither x nor y is NaN. (This is a mixed blessing: for |
| 2942 | example, the expression above will never trap, hence |
| 2943 | optimizing it to x < y would be invalid). */ |
| 2944 | if ((code == TRUTH_ORIF_EXPR && (lcompcode & COMPCODE_UNORD)) |
| 2945 | || (code == TRUTH_ANDIF_EXPR && !(lcompcode & COMPCODE_UNORD))) |
| 2946 | rtrap = false; |
| 2947 | |
| 2948 | /* If the comparison was short-circuited, and only the RHS |
| 2949 | trapped, we may now generate a spurious trap. */ |
| 2950 | if (rtrap && !ltrap |
| 2951 | && (code == TRUTH_ANDIF_EXPR || code == TRUTH_ORIF_EXPR)) |
| 2952 | return NULL_TREE(tree) __null; |
| 2953 | |
| 2954 | /* If we changed the conditions that cause a trap, we lose. */ |
| 2955 | if ((ltrap || rtrap) != trap) |
| 2956 | return NULL_TREE(tree) __null; |
| 2957 | } |
| 2958 | |
| 2959 | if (compcode == COMPCODE_TRUE) |
| 2960 | return constant_boolean_node (true, truth_type); |
| 2961 | else if (compcode == COMPCODE_FALSE) |
| 2962 | return constant_boolean_node (false, truth_type); |
| 2963 | else |
| 2964 | { |
| 2965 | enum tree_code tcode; |
| 2966 | |
| 2967 | tcode = compcode_to_comparison ((enum comparison_code) compcode); |
| 2968 | return fold_build2_loc (loc, tcode, truth_type, ll_arg, lr_arg); |
| 2969 | } |
| 2970 | } |
| 2971 | |
| 2972 | /* Return nonzero if two operands (typically of the same tree node) |
| 2973 | are necessarily equal. FLAGS modifies behavior as follows: |
| 2974 | |
| 2975 | If OEP_ONLY_CONST is set, only return nonzero for constants. |
| 2976 | This function tests whether the operands are indistinguishable; |
| 2977 | it does not test whether they are equal using C's == operation. |
| 2978 | The distinction is important for IEEE floating point, because |
| 2979 | (1) -0.0 and 0.0 are distinguishable, but -0.0==0.0, and |
| 2980 | (2) two NaNs may be indistinguishable, but NaN!=NaN. |
| 2981 | |
| 2982 | If OEP_ONLY_CONST is unset, a VAR_DECL is considered equal to itself |
| 2983 | even though it may hold multiple values during a function. |
| 2984 | This is because a GCC tree node guarantees that nothing else is |
| 2985 | executed between the evaluation of its "operands" (which may often |
| 2986 | be evaluated in arbitrary order). Hence if the operands themselves |
| 2987 | don't side-effect, the VAR_DECLs, PARM_DECLs etc... must hold the |
| 2988 | same value in each operand/subexpression. Hence leaving OEP_ONLY_CONST |
| 2989 | unset means assuming isochronic (or instantaneous) tree equivalence. |
| 2990 | Unless comparing arbitrary expression trees, such as from different |
| 2991 | statements, this flag can usually be left unset. |
| 2992 | |
| 2993 | If OEP_PURE_SAME is set, then pure functions with identical arguments |
| 2994 | are considered the same. It is used when the caller has other ways |
| 2995 | to ensure that global memory is unchanged in between. |
| 2996 | |
| 2997 | If OEP_ADDRESS_OF is set, we are actually comparing addresses of objects, |
| 2998 | not values of expressions. |
| 2999 | |
| 3000 | If OEP_LEXICOGRAPHIC is set, then also handle expressions with side-effects |
| 3001 | such as MODIFY_EXPR, RETURN_EXPR, as well as STATEMENT_LISTs. |
| 3002 | |
| 3003 | If OEP_BITWISE is set, then require the values to be bitwise identical |
| 3004 | rather than simply numerically equal. Do not take advantage of things |
| 3005 | like math-related flags or undefined behavior; only return true for |
| 3006 | values that are provably bitwise identical in all circumstances. |
| 3007 | |
| 3008 | Unless OEP_MATCH_SIDE_EFFECTS is set, the function returns false on |
| 3009 | any operand with side effect. This is unnecesarily conservative in the |
| 3010 | case we know that arg0 and arg1 are in disjoint code paths (such as in |
| 3011 | ?: operator). In addition OEP_MATCH_SIDE_EFFECTS is used when comparing |
| 3012 | addresses with TREE_CONSTANT flag set so we know that &var == &var |
| 3013 | even if var is volatile. */ |
| 3014 | |
| 3015 | bool |
| 3016 | operand_compare::operand_equal_p (const_tree arg0, const_tree arg1, |
| 3017 | unsigned int flags) |
| 3018 | { |
| 3019 | bool r; |
| 3020 | if (verify_hash_value (arg0, arg1, flags, &r)) |
| 3021 | return r; |
| 3022 | |
| 3023 | STRIP_ANY_LOCATION_WRAPPER (arg0)(arg0) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((arg0))))); |
| 3024 | STRIP_ANY_LOCATION_WRAPPER (arg1)(arg1) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((arg1))))); |
| 3025 | |
| 3026 | /* If either is ERROR_MARK, they aren't equal. */ |
| 3027 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == ERROR_MARK || TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == ERROR_MARK |
| 3028 | || TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3028, __FUNCTION__))->typed.type) == error_mark_nodeglobal_trees[TI_ERROR_MARK] |
| 3029 | || TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3029, __FUNCTION__))->typed.type) == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 3030 | return false; |
| 3031 | |
| 3032 | /* Similar, if either does not have a type (like a template id), |
| 3033 | they aren't equal. */ |
| 3034 | if (!TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3034, __FUNCTION__))->typed.type) || !TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3034, __FUNCTION__))->typed.type)) |
| 3035 | return false; |
| 3036 | |
| 3037 | /* Bitwise identity makes no sense if the values have different layouts. */ |
| 3038 | if ((flags & OEP_BITWISE) |
| 3039 | && !tree_nop_conversion_p (TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3039, __FUNCTION__))->typed.type), TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3039, __FUNCTION__))->typed.type))) |
| 3040 | return false; |
| 3041 | |
| 3042 | /* We cannot consider pointers to different address space equal. */ |
| 3043 | if (POINTER_TYPE_P (TREE_TYPE (arg0))(((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3043, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3043, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) |
| 3044 | && POINTER_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3044, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3044, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) |
| 3045 | && (TYPE_ADDR_SPACE (TREE_TYPE (TREE_TYPE (arg0)))((tree_class_check ((((contains_struct_check ((((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3045, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3045, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3045, __FUNCTION__))->base.u.bits.address_space) |
| 3046 | != TYPE_ADDR_SPACE (TREE_TYPE (TREE_TYPE (arg1)))((tree_class_check ((((contains_struct_check ((((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3046, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3046, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3046, __FUNCTION__))->base.u.bits.address_space))) |
| 3047 | return false; |
| 3048 | |
| 3049 | /* Check equality of integer constants before bailing out due to |
| 3050 | precision differences. */ |
| 3051 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == INTEGER_CST && TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == INTEGER_CST) |
| 3052 | { |
| 3053 | /* Address of INTEGER_CST is not defined; check that we did not forget |
| 3054 | to drop the OEP_ADDRESS_OF flags. */ |
| 3055 | gcc_checking_assert (!(flags & OEP_ADDRESS_OF))((void)(!(!(flags & OEP_ADDRESS_OF)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3055, __FUNCTION__), 0 : 0)); |
| 3056 | return tree_int_cst_equal (arg0, arg1); |
| 3057 | } |
| 3058 | |
| 3059 | if (!(flags & OEP_ADDRESS_OF)) |
| 3060 | { |
| 3061 | /* If both types don't have the same signedness, then we can't consider |
| 3062 | them equal. We must check this before the STRIP_NOPS calls |
| 3063 | because they may change the signedness of the arguments. As pointers |
| 3064 | strictly don't have a signedness, require either two pointers or |
| 3065 | two non-pointers as well. */ |
| 3066 | if (TYPE_UNSIGNED (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3066, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3066, __FUNCTION__))->base.u.bits.unsigned_flag) != TYPE_UNSIGNED (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3066, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3066, __FUNCTION__))->base.u.bits.unsigned_flag) |
| 3067 | || POINTER_TYPE_P (TREE_TYPE (arg0))(((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3067, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3067, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE ) |
| 3068 | != POINTER_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3068, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3068, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )) |
| 3069 | return false; |
| 3070 | |
| 3071 | /* If both types don't have the same precision, then it is not safe |
| 3072 | to strip NOPs. */ |
| 3073 | if (element_precision (TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3073, __FUNCTION__))->typed.type)) |
| 3074 | != element_precision (TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3074, __FUNCTION__))->typed.type))) |
| 3075 | return false; |
| 3076 | |
| 3077 | STRIP_NOPS (arg0)(arg0) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg0))))); |
| 3078 | STRIP_NOPS (arg1)(arg1) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((arg1))))); |
| 3079 | } |
| 3080 | #if 0 |
| 3081 | /* FIXME: Fortran FE currently produce ADDR_EXPR of NOP_EXPR. Enable the |
| 3082 | sanity check once the issue is solved. */ |
| 3083 | else |
| 3084 | /* Addresses of conversions and SSA_NAMEs (and many other things) |
| 3085 | are not defined. Check that we did not forget to drop the |
| 3086 | OEP_ADDRESS_OF/OEP_CONSTANT_ADDRESS_OF flags. */ |
| 3087 | gcc_checking_assert (!CONVERT_EXPR_P (arg0) && !CONVERT_EXPR_P (arg1)((void)(!(!((((enum tree_code) (arg0)->base.code)) == NOP_EXPR || (((enum tree_code) (arg0)->base.code)) == CONVERT_EXPR ) && !((((enum tree_code) (arg1)->base.code)) == NOP_EXPR || (((enum tree_code) (arg1)->base.code)) == CONVERT_EXPR ) && ((enum tree_code) (arg0)->base.code) != SSA_NAME ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3088, __FUNCTION__), 0 : 0)) |
| 3088 | && TREE_CODE (arg0) != SSA_NAME)((void)(!(!((((enum tree_code) (arg0)->base.code)) == NOP_EXPR || (((enum tree_code) (arg0)->base.code)) == CONVERT_EXPR ) && !((((enum tree_code) (arg1)->base.code)) == NOP_EXPR || (((enum tree_code) (arg1)->base.code)) == CONVERT_EXPR ) && ((enum tree_code) (arg0)->base.code) != SSA_NAME ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3088, __FUNCTION__), 0 : 0)); |
| 3089 | #endif |
| 3090 | |
| 3091 | /* In case both args are comparisons but with different comparison |
| 3092 | code, try to swap the comparison operands of one arg to produce |
| 3093 | a match and compare that variant. */ |
| 3094 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) != TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) |
| 3095 | && COMPARISON_CLASS_P (arg0)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg0)->base.code))] == tcc_comparison) |
| 3096 | && COMPARISON_CLASS_P (arg1)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg1)->base.code))] == tcc_comparison)) |
| 3097 | { |
| 3098 | enum tree_code swap_code = swap_tree_comparison (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code)); |
| 3099 | |
| 3100 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == swap_code) |
| 3101 | return operand_equal_p (TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3101, __FUNCTION__))))), |
| 3102 | TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3102, __FUNCTION__))))), flags) |
| 3103 | && operand_equal_p (TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3103, __FUNCTION__))))), |
| 3104 | TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3104, __FUNCTION__))))), flags); |
| 3105 | } |
| 3106 | |
| 3107 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) != TREE_CODE (arg1)((enum tree_code) (arg1)->base.code)) |
| 3108 | { |
| 3109 | /* NOP_EXPR and CONVERT_EXPR are considered equal. */ |
| 3110 | if (CONVERT_EXPR_P (arg0)((((enum tree_code) (arg0)->base.code)) == NOP_EXPR || ((( enum tree_code) (arg0)->base.code)) == CONVERT_EXPR) && CONVERT_EXPR_P (arg1)((((enum tree_code) (arg1)->base.code)) == NOP_EXPR || ((( enum tree_code) (arg1)->base.code)) == CONVERT_EXPR)) |
| 3111 | ; |
| 3112 | else if (flags & OEP_ADDRESS_OF) |
| 3113 | { |
| 3114 | /* If we are interested in comparing addresses ignore |
| 3115 | MEM_REF wrappings of the base that can appear just for |
| 3116 | TBAA reasons. */ |
| 3117 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == MEM_REF |
| 3118 | && DECL_P (arg1)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg1)->base.code))] == tcc_declaration) |
| 3119 | && TREE_CODE (TREE_OPERAND (arg0, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3119, __FUNCTION__))))))->base.code) == ADDR_EXPR |
| 3120 | && TREE_OPERAND (TREE_OPERAND (arg0, 0), 0)(*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3120, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3120, __FUNCTION__))))) == arg1 |
| 3121 | && integer_zerop (TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3121, __FUNCTION__))))))) |
| 3122 | return true; |
| 3123 | else if (TREE_CODE (arg1)((enum tree_code) (arg1)->base.code) == MEM_REF |
| 3124 | && DECL_P (arg0)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg0)->base.code))] == tcc_declaration) |
| 3125 | && TREE_CODE (TREE_OPERAND (arg1, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3125, __FUNCTION__))))))->base.code) == ADDR_EXPR |
| 3126 | && TREE_OPERAND (TREE_OPERAND (arg1, 0), 0)(*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3126, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3126, __FUNCTION__))))) == arg0 |
| 3127 | && integer_zerop (TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3127, __FUNCTION__))))))) |
| 3128 | return true; |
| 3129 | return false; |
| 3130 | } |
| 3131 | else |
| 3132 | return false; |
| 3133 | } |
| 3134 | |
| 3135 | /* When not checking adddresses, this is needed for conversions and for |
| 3136 | COMPONENT_REF. Might as well play it safe and always test this. */ |
| 3137 | if (TREE_CODE (TREE_TYPE (arg0))((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3137, __FUNCTION__))->typed.type))->base.code) == ERROR_MARK |
| 3138 | || TREE_CODE (TREE_TYPE (arg1))((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3138, __FUNCTION__))->typed.type))->base.code) == ERROR_MARK |
| 3139 | || (TYPE_MODE (TREE_TYPE (arg0))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type)) : (((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type))->type_common.mode) != TYPE_MODE (TREE_TYPE (arg1))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type)) : (((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3139, __FUNCTION__))->typed.type))->type_common.mode) |
| 3140 | && !(flags & OEP_ADDRESS_OF))) |
| 3141 | return false; |
| 3142 | |
| 3143 | /* If ARG0 and ARG1 are the same SAVE_EXPR, they are necessarily equal. |
| 3144 | We don't care about side effects in that case because the SAVE_EXPR |
| 3145 | takes care of that for us. In all other cases, two expressions are |
| 3146 | equal if they have no side effects. If we have two identical |
| 3147 | expressions with side effects that should be treated the same due |
| 3148 | to the only side effects being identical SAVE_EXPR's, that will |
| 3149 | be detected in the recursive calls below. |
| 3150 | If we are taking an invariant address of two identical objects |
| 3151 | they are necessarily equal as well. */ |
| 3152 | if (arg0 == arg1 && ! (flags & OEP_ONLY_CONST) |
| 3153 | && (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == SAVE_EXPR |
| 3154 | || (flags & OEP_MATCH_SIDE_EFFECTS) |
| 3155 | || (! TREE_SIDE_EFFECTS (arg0)((non_type_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3155, __FUNCTION__))->base.side_effects_flag) && ! TREE_SIDE_EFFECTS (arg1)((non_type_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3155, __FUNCTION__))->base.side_effects_flag)))) |
| 3156 | return true; |
| 3157 | |
| 3158 | /* Next handle constant cases, those for which we can return 1 even |
| 3159 | if ONLY_CONST is set. */ |
| 3160 | if (TREE_CONSTANT (arg0)((non_type_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3160, __FUNCTION__))->base.constant_flag) && TREE_CONSTANT (arg1)((non_type_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3160, __FUNCTION__))->base.constant_flag)) |
| 3161 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3162 | { |
| 3163 | case INTEGER_CST: |
| 3164 | return tree_int_cst_equal (arg0, arg1); |
| 3165 | |
| 3166 | case FIXED_CST: |
| 3167 | return FIXED_VALUES_IDENTICAL (TREE_FIXED_CST (arg0),fixed_identical (&((*((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3167, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr ))), &((*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3168, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )))) |
| 3168 | TREE_FIXED_CST (arg1))fixed_identical (&((*((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3167, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr ))), &((*((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3168, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )))); |
| 3169 | |
| 3170 | case REAL_CST: |
| 3171 | if (real_identical (&TREE_REAL_CST (arg0)(*(&(tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3171, __FUNCTION__, (REAL_CST)))->real_cst.value)), &TREE_REAL_CST (arg1)(*(&(tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3171, __FUNCTION__, (REAL_CST)))->real_cst.value)))) |
| 3172 | return true; |
| 3173 | |
| 3174 | if (!(flags & OEP_BITWISE) && !HONOR_SIGNED_ZEROS (arg0)) |
| 3175 | { |
| 3176 | /* If we do not distinguish between signed and unsigned zero, |
| 3177 | consider them equal. */ |
| 3178 | if (real_zerop (arg0) && real_zerop (arg1)) |
| 3179 | return true; |
| 3180 | } |
| 3181 | return false; |
| 3182 | |
| 3183 | case VECTOR_CST: |
| 3184 | { |
| 3185 | if (VECTOR_CST_LOG2_NPATTERNS (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3185, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.log2_npatterns ) |
| 3186 | != VECTOR_CST_LOG2_NPATTERNS (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3186, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.log2_npatterns )) |
| 3187 | return false; |
| 3188 | |
| 3189 | if (VECTOR_CST_NELTS_PER_PATTERN (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3189, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern ) |
| 3190 | != VECTOR_CST_NELTS_PER_PATTERN (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3190, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern )) |
| 3191 | return false; |
| 3192 | |
| 3193 | unsigned int count = vector_cst_encoded_nelts (arg0); |
| 3194 | for (unsigned int i = 0; i < count; ++i) |
| 3195 | if (!operand_equal_p (VECTOR_CST_ENCODED_ELT (arg0, i)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3195, __FUNCTION__, (VECTOR_CST)))->vector.elts[i]), |
| 3196 | VECTOR_CST_ENCODED_ELT (arg1, i)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3196, __FUNCTION__, (VECTOR_CST)))->vector.elts[i]), flags)) |
| 3197 | return false; |
| 3198 | return true; |
| 3199 | } |
| 3200 | |
| 3201 | case COMPLEX_CST: |
| 3202 | return (operand_equal_p (TREE_REALPART (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3202, __FUNCTION__, (COMPLEX_CST)))->complex.real), TREE_REALPART (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3202, __FUNCTION__, (COMPLEX_CST)))->complex.real), |
| 3203 | flags) |
| 3204 | && operand_equal_p (TREE_IMAGPART (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3204, __FUNCTION__, (COMPLEX_CST)))->complex.imag), TREE_IMAGPART (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3204, __FUNCTION__, (COMPLEX_CST)))->complex.imag), |
| 3205 | flags)); |
| 3206 | |
| 3207 | case STRING_CST: |
| 3208 | return (TREE_STRING_LENGTH (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3208, __FUNCTION__, (STRING_CST)))->string.length) == TREE_STRING_LENGTH (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3208, __FUNCTION__, (STRING_CST)))->string.length) |
| 3209 | && ! memcmp (TREE_STRING_POINTER (arg0)((const char *)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3209, __FUNCTION__, (STRING_CST)))->string.str)), |
| 3210 | TREE_STRING_POINTER (arg1)((const char *)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3210, __FUNCTION__, (STRING_CST)))->string.str)), |
| 3211 | TREE_STRING_LENGTH (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3211, __FUNCTION__, (STRING_CST)))->string.length))); |
| 3212 | |
| 3213 | case ADDR_EXPR: |
| 3214 | gcc_checking_assert (!(flags & OEP_ADDRESS_OF))((void)(!(!(flags & OEP_ADDRESS_OF)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3214, __FUNCTION__), 0 : 0)); |
| 3215 | return operand_equal_p (TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3215, __FUNCTION__))))), TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3215, __FUNCTION__))))), |
| 3216 | flags | OEP_ADDRESS_OF |
| 3217 | | OEP_MATCH_SIDE_EFFECTS); |
| 3218 | case CONSTRUCTOR: |
| 3219 | /* In GIMPLE empty constructors are allowed in initializers of |
| 3220 | aggregates. */ |
| 3221 | return !CONSTRUCTOR_NELTS (arg0)(vec_safe_length (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3221, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) && !CONSTRUCTOR_NELTS (arg1)(vec_safe_length (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3221, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))); |
| 3222 | default: |
| 3223 | break; |
| 3224 | } |
| 3225 | |
| 3226 | /* Don't handle more cases for OEP_BITWISE, since we can't guarantee that |
| 3227 | two instances of undefined behavior will give identical results. */ |
| 3228 | if (flags & (OEP_ONLY_CONST | OEP_BITWISE)) |
| 3229 | return false; |
| 3230 | |
| 3231 | /* Define macros to test an operand from arg0 and arg1 for equality and a |
| 3232 | variant that allows null and views null as being different from any |
| 3233 | non-null value. In the latter case, if either is null, the both |
| 3234 | must be; otherwise, do the normal comparison. */ |
| 3235 | #define OP_SAME(N) operand_equal_p (TREE_OPERAND (arg0, N)(*((const_cast<tree*> (tree_operand_check ((arg0), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3235, __FUNCTION__))))), \ |
| 3236 | TREE_OPERAND (arg1, N)(*((const_cast<tree*> (tree_operand_check ((arg1), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3236, __FUNCTION__))))), flags) |
| 3237 | |
| 3238 | #define OP_SAME_WITH_NULL(N) \ |
| 3239 | ((!TREE_OPERAND (arg0, N)(*((const_cast<tree*> (tree_operand_check ((arg0), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3239, __FUNCTION__))))) || !TREE_OPERAND (arg1, N)(*((const_cast<tree*> (tree_operand_check ((arg1), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3239, __FUNCTION__)))))) \ |
| 3240 | ? TREE_OPERAND (arg0, N)(*((const_cast<tree*> (tree_operand_check ((arg0), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3240, __FUNCTION__))))) == TREE_OPERAND (arg1, N)(*((const_cast<tree*> (tree_operand_check ((arg1), (N), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3240, __FUNCTION__))))) : OP_SAME (N)) |
| 3241 | |
| 3242 | switch (TREE_CODE_CLASS (TREE_CODE (arg0))tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg0)->base.code))]) |
| 3243 | { |
| 3244 | case tcc_unary: |
| 3245 | /* Two conversions are equal only if signedness and modes match. */ |
| 3246 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3247 | { |
| 3248 | CASE_CONVERTcase NOP_EXPR: case CONVERT_EXPR: |
| 3249 | case FIX_TRUNC_EXPR: |
| 3250 | if (TYPE_UNSIGNED (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3250, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3250, __FUNCTION__))->base.u.bits.unsigned_flag) |
| 3251 | != TYPE_UNSIGNED (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3251, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3251, __FUNCTION__))->base.u.bits.unsigned_flag)) |
| 3252 | return false; |
| 3253 | break; |
| 3254 | default: |
| 3255 | break; |
| 3256 | } |
| 3257 | |
| 3258 | return OP_SAME (0); |
| 3259 | |
| 3260 | |
| 3261 | case tcc_comparison: |
| 3262 | case tcc_binary: |
| 3263 | if (OP_SAME (0) && OP_SAME (1)) |
| 3264 | return true; |
| 3265 | |
| 3266 | /* For commutative ops, allow the other order. */ |
| 3267 | return (commutative_tree_code (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3268 | && operand_equal_p (TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3268, __FUNCTION__))))), |
| 3269 | TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3269, __FUNCTION__))))), flags) |
| 3270 | && operand_equal_p (TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3270, __FUNCTION__))))), |
| 3271 | TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3271, __FUNCTION__))))), flags)); |
| 3272 | |
| 3273 | case tcc_reference: |
| 3274 | /* If either of the pointer (or reference) expressions we are |
| 3275 | dereferencing contain a side effect, these cannot be equal, |
| 3276 | but their addresses can be. */ |
| 3277 | if ((flags & OEP_MATCH_SIDE_EFFECTS) == 0 |
| 3278 | && (TREE_SIDE_EFFECTS (arg0)((non_type_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3278, __FUNCTION__))->base.side_effects_flag) |
| 3279 | || TREE_SIDE_EFFECTS (arg1)((non_type_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3279, __FUNCTION__))->base.side_effects_flag))) |
| 3280 | return false; |
| 3281 | |
| 3282 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3283 | { |
| 3284 | case INDIRECT_REF: |
| 3285 | if (!(flags & OEP_ADDRESS_OF)) |
| 3286 | { |
| 3287 | if (TYPE_ALIGN (TREE_TYPE (arg0))(((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3287, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3287, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((arg0 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3287, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3287, __FUNCTION__))->type_common.align) - 1) : 0) |
| 3288 | != TYPE_ALIGN (TREE_TYPE (arg1))(((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3288, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3288, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((arg1 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3288, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3288, __FUNCTION__))->type_common.align) - 1) : 0)) |
| 3289 | return false; |
| 3290 | /* Verify that the access types are compatible. */ |
| 3291 | if (TYPE_MAIN_VARIANT (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3291, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3291, __FUNCTION__))->type_common.main_variant) |
| 3292 | != TYPE_MAIN_VARIANT (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3292, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3292, __FUNCTION__))->type_common.main_variant)) |
| 3293 | return false; |
| 3294 | } |
| 3295 | flags &= ~OEP_ADDRESS_OF; |
| 3296 | return OP_SAME (0); |
| 3297 | |
| 3298 | case IMAGPART_EXPR: |
| 3299 | /* Require the same offset. */ |
| 3300 | if (!operand_equal_p (TYPE_SIZE (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3300, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3300, __FUNCTION__))->type_common.size), |
| 3301 | TYPE_SIZE (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3301, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3301, __FUNCTION__))->type_common.size), |
| 3302 | flags & ~OEP_ADDRESS_OF)) |
| 3303 | return false; |
| 3304 | |
| 3305 | /* Fallthru. */ |
| 3306 | case REALPART_EXPR: |
| 3307 | case VIEW_CONVERT_EXPR: |
| 3308 | return OP_SAME (0); |
| 3309 | |
| 3310 | case TARGET_MEM_REF: |
| 3311 | case MEM_REF: |
| 3312 | if (!(flags & OEP_ADDRESS_OF)) |
| 3313 | { |
| 3314 | /* Require equal access sizes */ |
| 3315 | if (TYPE_SIZE (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3315, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3315, __FUNCTION__))->type_common.size) != TYPE_SIZE (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3315, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3315, __FUNCTION__))->type_common.size) |
| 3316 | && (!TYPE_SIZE (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3316, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3316, __FUNCTION__))->type_common.size) |
| 3317 | || !TYPE_SIZE (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3317, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3317, __FUNCTION__))->type_common.size) |
| 3318 | || !operand_equal_p (TYPE_SIZE (TREE_TYPE (arg0))((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3318, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3318, __FUNCTION__))->type_common.size), |
| 3319 | TYPE_SIZE (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3319, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3319, __FUNCTION__))->type_common.size), |
| 3320 | flags))) |
| 3321 | return false; |
| 3322 | /* Verify that access happens in similar types. */ |
| 3323 | if (!types_compatible_p (TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3323, __FUNCTION__))->typed.type), TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3323, __FUNCTION__))->typed.type))) |
| 3324 | return false; |
| 3325 | /* Verify that accesses are TBAA compatible. */ |
| 3326 | if (!alias_ptr_types_compatible_p |
| 3327 | (TREE_TYPE (TREE_OPERAND (arg0, 1))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3327, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3327, __FUNCTION__))->typed.type), |
| 3328 | TREE_TYPE (TREE_OPERAND (arg1, 1))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3328, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3328, __FUNCTION__))->typed.type)) |
| 3329 | || (MR_DEPENDENCE_CLIQUE (arg0)((tree_check2 ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3329, __FUNCTION__, (MEM_REF), (TARGET_MEM_REF)))->base. u.dependence_info.clique) |
| 3330 | != MR_DEPENDENCE_CLIQUE (arg1)((tree_check2 ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3330, __FUNCTION__, (MEM_REF), (TARGET_MEM_REF)))->base. u.dependence_info.clique)) |
| 3331 | || (MR_DEPENDENCE_BASE (arg0)((tree_check2 ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3331, __FUNCTION__, (MEM_REF), (TARGET_MEM_REF)))->base. u.dependence_info.base) |
| 3332 | != MR_DEPENDENCE_BASE (arg1)((tree_check2 ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3332, __FUNCTION__, (MEM_REF), (TARGET_MEM_REF)))->base. u.dependence_info.base))) |
| 3333 | return false; |
| 3334 | /* Verify that alignment is compatible. */ |
| 3335 | if (TYPE_ALIGN (TREE_TYPE (arg0))(((tree_class_check ((((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3335, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3335, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((arg0 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3335, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3335, __FUNCTION__))->type_common.align) - 1) : 0) |
| 3336 | != TYPE_ALIGN (TREE_TYPE (arg1))(((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3336, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3336, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((arg1 ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3336, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3336, __FUNCTION__))->type_common.align) - 1) : 0)) |
| 3337 | return false; |
| 3338 | } |
| 3339 | flags &= ~OEP_ADDRESS_OF; |
| 3340 | return (OP_SAME (0) && OP_SAME (1) |
| 3341 | /* TARGET_MEM_REF require equal extra operands. */ |
| 3342 | && (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) != TARGET_MEM_REF |
| 3343 | || (OP_SAME_WITH_NULL (2) |
| 3344 | && OP_SAME_WITH_NULL (3) |
| 3345 | && OP_SAME_WITH_NULL (4)))); |
| 3346 | |
| 3347 | case ARRAY_REF: |
| 3348 | case ARRAY_RANGE_REF: |
| 3349 | if (!OP_SAME (0)) |
| 3350 | return false; |
| 3351 | flags &= ~OEP_ADDRESS_OF; |
| 3352 | /* Compare the array index by value if it is constant first as we |
| 3353 | may have different types but same value here. */ |
| 3354 | return ((tree_int_cst_equal (TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3354, __FUNCTION__))))), |
| 3355 | TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3355, __FUNCTION__)))))) |
| 3356 | || OP_SAME (1)) |
| 3357 | && OP_SAME_WITH_NULL (2) |
| 3358 | && OP_SAME_WITH_NULL (3) |
| 3359 | /* Compare low bound and element size as with OEP_ADDRESS_OF |
| 3360 | we have to account for the offset of the ref. */ |
| 3361 | && (TREE_TYPE (TREE_OPERAND (arg0, 0))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3361, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3361, __FUNCTION__))->typed.type) |
| 3362 | == TREE_TYPE (TREE_OPERAND (arg1, 0))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3362, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3362, __FUNCTION__))->typed.type) |
| 3363 | || (operand_equal_p (array_ref_low_bound |
| 3364 | (CONST_CAST_TREE (arg0)(const_cast<union tree_node *> (((arg0))))), |
| 3365 | array_ref_low_bound |
| 3366 | (CONST_CAST_TREE (arg1)(const_cast<union tree_node *> (((arg1))))), flags) |
| 3367 | && operand_equal_p (array_ref_element_size |
| 3368 | (CONST_CAST_TREE (arg0)(const_cast<union tree_node *> (((arg0))))), |
| 3369 | array_ref_element_size |
| 3370 | (CONST_CAST_TREE (arg1)(const_cast<union tree_node *> (((arg1))))), |
| 3371 | flags)))); |
| 3372 | |
| 3373 | case COMPONENT_REF: |
| 3374 | /* Handle operand 2 the same as for ARRAY_REF. Operand 0 |
| 3375 | may be NULL when we're called to compare MEM_EXPRs. */ |
| 3376 | if (!OP_SAME_WITH_NULL (0)) |
| 3377 | return false; |
| 3378 | { |
| 3379 | bool compare_address = flags & OEP_ADDRESS_OF; |
| 3380 | |
| 3381 | /* Most of time we only need to compare FIELD_DECLs for equality. |
| 3382 | However when determining address look into actual offsets. |
| 3383 | These may match for unions and unshared record types. */ |
| 3384 | flags &= ~OEP_ADDRESS_OF; |
| 3385 | if (!OP_SAME (1)) |
| 3386 | { |
| 3387 | if (compare_address |
| 3388 | && (flags & OEP_ADDRESS_OF_SAME_FIELD) == 0) |
| 3389 | { |
| 3390 | tree field0 = TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3390, __FUNCTION__))))); |
| 3391 | tree field1 = TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3391, __FUNCTION__))))); |
| 3392 | |
| 3393 | /* Non-FIELD_DECL operands can appear in C++ templates. */ |
| 3394 | if (TREE_CODE (field0)((enum tree_code) (field0)->base.code) != FIELD_DECL |
| 3395 | || TREE_CODE (field1)((enum tree_code) (field1)->base.code) != FIELD_DECL |
| 3396 | || !operand_equal_p (DECL_FIELD_OFFSET (field0)((tree_check ((field0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3396, __FUNCTION__, (FIELD_DECL)))->field_decl.offset), |
| 3397 | DECL_FIELD_OFFSET (field1)((tree_check ((field1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3397, __FUNCTION__, (FIELD_DECL)))->field_decl.offset), flags) |
| 3398 | || !operand_equal_p (DECL_FIELD_BIT_OFFSET (field0)((tree_check ((field0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3398, __FUNCTION__, (FIELD_DECL)))->field_decl.bit_offset ), |
| 3399 | DECL_FIELD_BIT_OFFSET (field1)((tree_check ((field1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3399, __FUNCTION__, (FIELD_DECL)))->field_decl.bit_offset ), |
| 3400 | flags)) |
| 3401 | return false; |
| 3402 | } |
| 3403 | else |
| 3404 | return false; |
| 3405 | } |
| 3406 | } |
| 3407 | return OP_SAME_WITH_NULL (2); |
| 3408 | |
| 3409 | case BIT_FIELD_REF: |
| 3410 | if (!OP_SAME (0)) |
| 3411 | return false; |
| 3412 | flags &= ~OEP_ADDRESS_OF; |
| 3413 | return OP_SAME (1) && OP_SAME (2); |
| 3414 | |
| 3415 | default: |
| 3416 | return false; |
| 3417 | } |
| 3418 | |
| 3419 | case tcc_expression: |
| 3420 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3421 | { |
| 3422 | case ADDR_EXPR: |
| 3423 | /* Be sure we pass right ADDRESS_OF flag. */ |
| 3424 | gcc_checking_assert (!(flags & OEP_ADDRESS_OF))((void)(!(!(flags & OEP_ADDRESS_OF)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3424, __FUNCTION__), 0 : 0)); |
| 3425 | return operand_equal_p (TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3425, __FUNCTION__))))), |
| 3426 | TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3426, __FUNCTION__))))), |
| 3427 | flags | OEP_ADDRESS_OF); |
| 3428 | |
| 3429 | case TRUTH_NOT_EXPR: |
| 3430 | return OP_SAME (0); |
| 3431 | |
| 3432 | case TRUTH_ANDIF_EXPR: |
| 3433 | case TRUTH_ORIF_EXPR: |
| 3434 | return OP_SAME (0) && OP_SAME (1); |
| 3435 | |
| 3436 | case WIDEN_MULT_PLUS_EXPR: |
| 3437 | case WIDEN_MULT_MINUS_EXPR: |
| 3438 | if (!OP_SAME (2)) |
| 3439 | return false; |
| 3440 | /* The multiplcation operands are commutative. */ |
| 3441 | /* FALLTHRU */ |
| 3442 | |
| 3443 | case TRUTH_AND_EXPR: |
| 3444 | case TRUTH_OR_EXPR: |
| 3445 | case TRUTH_XOR_EXPR: |
| 3446 | if (OP_SAME (0) && OP_SAME (1)) |
| 3447 | return true; |
| 3448 | |
| 3449 | /* Otherwise take into account this is a commutative operation. */ |
| 3450 | return (operand_equal_p (TREE_OPERAND (arg0, 0)(*((const_cast<tree*> (tree_operand_check ((arg0), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3450, __FUNCTION__))))), |
| 3451 | TREE_OPERAND (arg1, 1)(*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3451, __FUNCTION__))))), flags) |
| 3452 | && operand_equal_p (TREE_OPERAND (arg0, 1)(*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3452, __FUNCTION__))))), |
| 3453 | TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3453, __FUNCTION__))))), flags)); |
| 3454 | |
| 3455 | case COND_EXPR: |
| 3456 | if (! OP_SAME (1) || ! OP_SAME_WITH_NULL (2)) |
| 3457 | return false; |
| 3458 | flags &= ~OEP_ADDRESS_OF; |
| 3459 | return OP_SAME (0); |
| 3460 | |
| 3461 | case BIT_INSERT_EXPR: |
| 3462 | /* BIT_INSERT_EXPR has an implict operand as the type precision |
| 3463 | of op1. Need to check to make sure they are the same. */ |
| 3464 | if (TREE_CODE (TREE_OPERAND (arg0, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3464, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 3465 | && TREE_CODE (TREE_OPERAND (arg1, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3465, __FUNCTION__))))))->base.code) == INTEGER_CST |
| 3466 | && TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (arg0, 1)))((tree_class_check ((((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((arg0), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3466, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3466, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3466, __FUNCTION__))->type_common.precision) |
| 3467 | != TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (arg1, 1)))((tree_class_check ((((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((arg1), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3467, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3467, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3467, __FUNCTION__))->type_common.precision)) |
| 3468 | return false; |
| 3469 | /* FALLTHRU */ |
| 3470 | |
| 3471 | case VEC_COND_EXPR: |
| 3472 | case DOT_PROD_EXPR: |
| 3473 | return OP_SAME (0) && OP_SAME (1) && OP_SAME (2); |
| 3474 | |
| 3475 | case MODIFY_EXPR: |
| 3476 | case INIT_EXPR: |
| 3477 | case COMPOUND_EXPR: |
| 3478 | case PREDECREMENT_EXPR: |
| 3479 | case PREINCREMENT_EXPR: |
| 3480 | case POSTDECREMENT_EXPR: |
| 3481 | case POSTINCREMENT_EXPR: |
| 3482 | if (flags & OEP_LEXICOGRAPHIC) |
| 3483 | return OP_SAME (0) && OP_SAME (1); |
| 3484 | return false; |
| 3485 | |
| 3486 | case CLEANUP_POINT_EXPR: |
| 3487 | case EXPR_STMT: |
| 3488 | case SAVE_EXPR: |
| 3489 | if (flags & OEP_LEXICOGRAPHIC) |
| 3490 | return OP_SAME (0); |
| 3491 | return false; |
| 3492 | |
| 3493 | case OBJ_TYPE_REF: |
| 3494 | /* Virtual table reference. */ |
| 3495 | if (!operand_equal_p (OBJ_TYPE_REF_EXPR (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3495, __FUNCTION__, (OBJ_TYPE_REF)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3495, __FUNCTION__))))), |
| 3496 | OBJ_TYPE_REF_EXPR (arg1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3496, __FUNCTION__, (OBJ_TYPE_REF)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3496, __FUNCTION__))))), flags)) |
| 3497 | return false; |
| 3498 | flags &= ~OEP_ADDRESS_OF; |
| 3499 | if (tree_to_uhwi (OBJ_TYPE_REF_TOKEN (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3499, __FUNCTION__, (OBJ_TYPE_REF)))), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3499, __FUNCTION__)))))) |
| 3500 | != tree_to_uhwi (OBJ_TYPE_REF_TOKEN (arg1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3500, __FUNCTION__, (OBJ_TYPE_REF)))), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3500, __FUNCTION__))))))) |
| 3501 | return false; |
| 3502 | if (!operand_equal_p (OBJ_TYPE_REF_OBJECT (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3502, __FUNCTION__, (OBJ_TYPE_REF)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3502, __FUNCTION__))))), |
| 3503 | OBJ_TYPE_REF_OBJECT (arg1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3503, __FUNCTION__, (OBJ_TYPE_REF)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3503, __FUNCTION__))))), flags)) |
| 3504 | return false; |
| 3505 | if (virtual_method_call_p (arg0)) |
| 3506 | { |
| 3507 | if (!virtual_method_call_p (arg1)) |
| 3508 | return false; |
| 3509 | return types_same_for_odr (obj_type_ref_class (arg0), |
| 3510 | obj_type_ref_class (arg1)); |
| 3511 | } |
| 3512 | return false; |
| 3513 | |
| 3514 | default: |
| 3515 | return false; |
| 3516 | } |
| 3517 | |
| 3518 | case tcc_vl_exp: |
| 3519 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3520 | { |
| 3521 | case CALL_EXPR: |
| 3522 | if ((CALL_EXPR_FN (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3522, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3522, __FUNCTION__))))) == NULL_TREE(tree) __null) |
| 3523 | != (CALL_EXPR_FN (arg1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3523, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3523, __FUNCTION__))))) == NULL_TREE(tree) __null)) |
| 3524 | /* If not both CALL_EXPRs are either internal or normal function |
| 3525 | functions, then they are not equal. */ |
| 3526 | return false; |
| 3527 | else if (CALL_EXPR_FN (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3527, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3527, __FUNCTION__))))) == NULL_TREE(tree) __null) |
| 3528 | { |
| 3529 | /* If the CALL_EXPRs call different internal functions, then they |
| 3530 | are not equal. */ |
| 3531 | if (CALL_EXPR_IFN (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3531, __FUNCTION__, (CALL_EXPR)))->base.u.ifn) != CALL_EXPR_IFN (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3531, __FUNCTION__, (CALL_EXPR)))->base.u.ifn)) |
| 3532 | return false; |
| 3533 | } |
| 3534 | else |
| 3535 | { |
| 3536 | /* If the CALL_EXPRs call different functions, then they are not |
| 3537 | equal. */ |
| 3538 | if (! operand_equal_p (CALL_EXPR_FN (arg0)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3538, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3538, __FUNCTION__))))), CALL_EXPR_FN (arg1)(*((const_cast<tree*> (tree_operand_check (((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3538, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3538, __FUNCTION__))))), |
| 3539 | flags)) |
| 3540 | return false; |
| 3541 | } |
| 3542 | |
| 3543 | /* FIXME: We could skip this test for OEP_MATCH_SIDE_EFFECTS. */ |
| 3544 | { |
| 3545 | unsigned int cef = call_expr_flags (arg0); |
| 3546 | if (flags & OEP_PURE_SAME) |
| 3547 | cef &= ECF_CONST(1 << 0) | ECF_PURE(1 << 1); |
| 3548 | else |
| 3549 | cef &= ECF_CONST(1 << 0); |
| 3550 | if (!cef && !(flags & OEP_LEXICOGRAPHIC)) |
| 3551 | return false; |
| 3552 | } |
| 3553 | |
| 3554 | /* Now see if all the arguments are the same. */ |
| 3555 | { |
| 3556 | const_call_expr_arg_iterator iter0, iter1; |
| 3557 | const_tree a0, a1; |
| 3558 | for (a0 = first_const_call_expr_arg (arg0, &iter0), |
| 3559 | a1 = first_const_call_expr_arg (arg1, &iter1); |
| 3560 | a0 && a1; |
| 3561 | a0 = next_const_call_expr_arg (&iter0), |
| 3562 | a1 = next_const_call_expr_arg (&iter1)) |
| 3563 | if (! operand_equal_p (a0, a1, flags)) |
| 3564 | return false; |
| 3565 | |
| 3566 | /* If we get here and both argument lists are exhausted |
| 3567 | then the CALL_EXPRs are equal. */ |
| 3568 | return ! (a0 || a1); |
| 3569 | } |
| 3570 | default: |
| 3571 | return false; |
| 3572 | } |
| 3573 | |
| 3574 | case tcc_declaration: |
| 3575 | /* Consider __builtin_sqrt equal to sqrt. */ |
| 3576 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == FUNCTION_DECL) |
| 3577 | return (fndecl_built_in_p (arg0) && fndecl_built_in_p (arg1) |
| 3578 | && DECL_BUILT_IN_CLASS (arg0)((built_in_class) (tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3578, __FUNCTION__, (FUNCTION_DECL)))->function_decl.built_in_class ) == DECL_BUILT_IN_CLASS (arg1)((built_in_class) (tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3578, __FUNCTION__, (FUNCTION_DECL)))->function_decl.built_in_class ) |
| 3579 | && (DECL_UNCHECKED_FUNCTION_CODE (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3579, __FUNCTION__, (FUNCTION_DECL)))->function_decl.function_code ) |
| 3580 | == DECL_UNCHECKED_FUNCTION_CODE (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3580, __FUNCTION__, (FUNCTION_DECL)))->function_decl.function_code ))); |
| 3581 | |
| 3582 | if (DECL_P (arg0)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (arg0)->base.code))] == tcc_declaration) |
| 3583 | && (flags & OEP_DECL_NAME) |
| 3584 | && (flags & OEP_LEXICOGRAPHIC)) |
| 3585 | { |
| 3586 | /* Consider decls with the same name equal. The caller needs |
| 3587 | to make sure they refer to the same entity (such as a function |
| 3588 | formal parameter). */ |
| 3589 | tree a0name = DECL_NAME (arg0)((contains_struct_check ((arg0), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3589, __FUNCTION__))->decl_minimal.name); |
| 3590 | tree a1name = DECL_NAME (arg1)((contains_struct_check ((arg1), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3590, __FUNCTION__))->decl_minimal.name); |
| 3591 | const char *a0ns = a0name ? IDENTIFIER_POINTER (a0name)((const char *) (tree_check ((a0name), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3591, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.str ) : NULL__null; |
| 3592 | const char *a1ns = a1name ? IDENTIFIER_POINTER (a1name)((const char *) (tree_check ((a1name), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3592, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.str ) : NULL__null; |
| 3593 | return a0ns && a1ns && strcmp (a0ns, a1ns) == 0; |
| 3594 | } |
| 3595 | return false; |
| 3596 | |
| 3597 | case tcc_exceptional: |
| 3598 | if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == CONSTRUCTOR) |
| 3599 | { |
| 3600 | if (CONSTRUCTOR_NO_CLEARING (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3600, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag) != CONSTRUCTOR_NO_CLEARING (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3600, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)) |
| 3601 | return false; |
| 3602 | |
| 3603 | /* In GIMPLE constructors are used only to build vectors from |
| 3604 | elements. Individual elements in the constructor must be |
| 3605 | indexed in increasing order and form an initial sequence. |
| 3606 | |
| 3607 | We make no effort to compare constructors in generic. |
| 3608 | (see sem_variable::equals in ipa-icf which can do so for |
| 3609 | constants). */ |
| 3610 | if (!VECTOR_TYPE_P (TREE_TYPE (arg0))(((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3610, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE ) |
| 3611 | || !VECTOR_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3611, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE )) |
| 3612 | return false; |
| 3613 | |
| 3614 | /* Be sure that vectors constructed have the same representation. |
| 3615 | We only tested element precision and modes to match. |
| 3616 | Vectors may be BLKmode and thus also check that the number of |
| 3617 | parts match. */ |
| 3618 | if (maybe_ne (TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg0)((contains_struct_check ((arg0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3618, __FUNCTION__))->typed.type)), |
| 3619 | TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg1)((contains_struct_check ((arg1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3619, __FUNCTION__))->typed.type)))) |
| 3620 | return false; |
| 3621 | |
| 3622 | vec<constructor_elt, va_gc> *v0 = CONSTRUCTOR_ELTS (arg0)((tree_check ((arg0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3622, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 3623 | vec<constructor_elt, va_gc> *v1 = CONSTRUCTOR_ELTS (arg1)((tree_check ((arg1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3623, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts); |
| 3624 | unsigned int len = vec_safe_length (v0); |
| 3625 | |
| 3626 | if (len != vec_safe_length (v1)) |
| 3627 | return false; |
| 3628 | |
| 3629 | for (unsigned int i = 0; i < len; i++) |
| 3630 | { |
| 3631 | constructor_elt *c0 = &(*v0)[i]; |
| 3632 | constructor_elt *c1 = &(*v1)[i]; |
| 3633 | |
| 3634 | if (!operand_equal_p (c0->value, c1->value, flags) |
| 3635 | /* In GIMPLE the indexes can be either NULL or matching i. |
| 3636 | Double check this so we won't get false |
| 3637 | positives for GENERIC. */ |
| 3638 | || (c0->index |
| 3639 | && (TREE_CODE (c0->index)((enum tree_code) (c0->index)->base.code) != INTEGER_CST |
| 3640 | || compare_tree_int (c0->index, i))) |
| 3641 | || (c1->index |
| 3642 | && (TREE_CODE (c1->index)((enum tree_code) (c1->index)->base.code) != INTEGER_CST |
| 3643 | || compare_tree_int (c1->index, i)))) |
| 3644 | return false; |
| 3645 | } |
| 3646 | return true; |
| 3647 | } |
| 3648 | else if (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code) == STATEMENT_LIST |
| 3649 | && (flags & OEP_LEXICOGRAPHIC)) |
| 3650 | { |
| 3651 | /* Compare the STATEMENT_LISTs. */ |
| 3652 | tree_stmt_iterator tsi1, tsi2; |
| 3653 | tree body1 = CONST_CAST_TREE (arg0)(const_cast<union tree_node *> (((arg0)))); |
| 3654 | tree body2 = CONST_CAST_TREE (arg1)(const_cast<union tree_node *> (((arg1)))); |
| 3655 | for (tsi1 = tsi_start (body1), tsi2 = tsi_start (body2); ; |
| 3656 | tsi_next (&tsi1), tsi_next (&tsi2)) |
| 3657 | { |
| 3658 | /* The lists don't have the same number of statements. */ |
| 3659 | if (tsi_end_p (tsi1) ^ tsi_end_p (tsi2)) |
| 3660 | return false; |
| 3661 | if (tsi_end_p (tsi1) && tsi_end_p (tsi2)) |
| 3662 | return true; |
| 3663 | if (!operand_equal_p (tsi_stmt (tsi1), tsi_stmt (tsi2), |
| 3664 | flags & (OEP_LEXICOGRAPHIC |
| 3665 | | OEP_NO_HASH_CHECK))) |
| 3666 | return false; |
| 3667 | } |
| 3668 | } |
| 3669 | return false; |
| 3670 | |
| 3671 | case tcc_statement: |
| 3672 | switch (TREE_CODE (arg0)((enum tree_code) (arg0)->base.code)) |
| 3673 | { |
| 3674 | case RETURN_EXPR: |
| 3675 | if (flags & OEP_LEXICOGRAPHIC) |
| 3676 | return OP_SAME_WITH_NULL (0); |
| 3677 | return false; |
| 3678 | case DEBUG_BEGIN_STMT: |
| 3679 | if (flags & OEP_LEXICOGRAPHIC) |
| 3680 | return true; |
| 3681 | return false; |
| 3682 | default: |
| 3683 | return false; |
| 3684 | } |
| 3685 | |
| 3686 | default: |
| 3687 | return false; |
| 3688 | } |
| 3689 | |
| 3690 | #undef OP_SAME |
| 3691 | #undef OP_SAME_WITH_NULL |
| 3692 | } |
| 3693 | |
| 3694 | /* Generate a hash value for an expression. This can be used iteratively |
| 3695 | by passing a previous result as the HSTATE argument. */ |
| 3696 | |
| 3697 | void |
| 3698 | operand_compare::hash_operand (const_tree t, inchash::hash &hstate, |
| 3699 | unsigned int flags) |
| 3700 | { |
| 3701 | int i; |
| 3702 | enum tree_code code; |
| 3703 | enum tree_code_class tclass; |
| 3704 | |
| 3705 | if (t == NULL_TREE(tree) __null || t == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 3706 | { |
| 3707 | hstate.merge_hash (0); |
| 3708 | return; |
| 3709 | } |
| 3710 | |
| 3711 | STRIP_ANY_LOCATION_WRAPPER (t)(t) = tree_strip_any_location_wrapper ((const_cast<union tree_node *> (((t))))); |
| 3712 | |
| 3713 | if (!(flags & OEP_ADDRESS_OF)) |
| 3714 | STRIP_NOPS (t)(t) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((t))))); |
| 3715 | |
| 3716 | code = TREE_CODE (t)((enum tree_code) (t)->base.code); |
| 3717 | |
| 3718 | switch (code) |
| 3719 | { |
| 3720 | /* Alas, constants aren't shared, so we can't rely on pointer |
| 3721 | identity. */ |
| 3722 | case VOID_CST: |
| 3723 | hstate.merge_hash (0); |
| 3724 | return; |
| 3725 | case INTEGER_CST: |
| 3726 | gcc_checking_assert (!(flags & OEP_ADDRESS_OF))((void)(!(!(flags & OEP_ADDRESS_OF)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3726, __FUNCTION__), 0 : 0)); |
| 3727 | for (i = 0; i < TREE_INT_CST_EXT_NUNITS (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3727, __FUNCTION__, (INTEGER_CST)))->base.u.int_length.extended ); i++) |
| 3728 | hstate.add_hwi (TREE_INT_CST_ELT (t, i)(*tree_int_cst_elt_check ((t), (i), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3728, __FUNCTION__))); |
| 3729 | return; |
| 3730 | case REAL_CST: |
| 3731 | { |
| 3732 | unsigned int val2; |
| 3733 | if (!HONOR_SIGNED_ZEROS (t) && real_zerop (t)) |
| 3734 | val2 = rvc_zero; |
| 3735 | else |
| 3736 | val2 = real_hash (TREE_REAL_CST_PTR (t)(&(tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3736, __FUNCTION__, (REAL_CST)))->real_cst.value)); |
| 3737 | hstate.merge_hash (val2); |
| 3738 | return; |
| 3739 | } |
| 3740 | case FIXED_CST: |
| 3741 | { |
| 3742 | unsigned int val2 = fixed_hash (TREE_FIXED_CST_PTR (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3742, __FUNCTION__, (FIXED_CST)))->fixed_cst.fixed_cst_ptr )); |
| 3743 | hstate.merge_hash (val2); |
| 3744 | return; |
| 3745 | } |
| 3746 | case STRING_CST: |
| 3747 | hstate.add ((const void *) TREE_STRING_POINTER (t)((const char *)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3747, __FUNCTION__, (STRING_CST)))->string.str)), |
| 3748 | TREE_STRING_LENGTH (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3748, __FUNCTION__, (STRING_CST)))->string.length)); |
| 3749 | return; |
| 3750 | case COMPLEX_CST: |
| 3751 | hash_operand (TREE_REALPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3751, __FUNCTION__, (COMPLEX_CST)))->complex.real), hstate, flags); |
| 3752 | hash_operand (TREE_IMAGPART (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3752, __FUNCTION__, (COMPLEX_CST)))->complex.imag), hstate, flags); |
| 3753 | return; |
| 3754 | case VECTOR_CST: |
| 3755 | { |
| 3756 | hstate.add_int (VECTOR_CST_NPATTERNS (t)(1U << ((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3756, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.log2_npatterns ))); |
| 3757 | hstate.add_int (VECTOR_CST_NELTS_PER_PATTERN (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3757, __FUNCTION__, (VECTOR_CST)))->base.u.vector_cst.nelts_per_pattern )); |
| 3758 | unsigned int count = vector_cst_encoded_nelts (t); |
| 3759 | for (unsigned int i = 0; i < count; ++i) |
| 3760 | hash_operand (VECTOR_CST_ENCODED_ELT (t, i)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3760, __FUNCTION__, (VECTOR_CST)))->vector.elts[i]), hstate, flags); |
| 3761 | return; |
| 3762 | } |
| 3763 | case SSA_NAME: |
| 3764 | /* We can just compare by pointer. */ |
| 3765 | hstate.add_hwi (SSA_NAME_VERSION (t)(tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3765, __FUNCTION__, (SSA_NAME)))->base.u.version); |
| 3766 | return; |
| 3767 | case PLACEHOLDER_EXPR: |
| 3768 | /* The node itself doesn't matter. */ |
| 3769 | return; |
| 3770 | case BLOCK: |
| 3771 | case OMP_CLAUSE: |
| 3772 | /* Ignore. */ |
| 3773 | return; |
| 3774 | case TREE_LIST: |
| 3775 | /* A list of expressions, for a CALL_EXPR or as the elements of a |
| 3776 | VECTOR_CST. */ |
| 3777 | for (; t; t = TREE_CHAIN (t)((contains_struct_check ((t), (TS_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3777, __FUNCTION__))->common.chain)) |
| 3778 | hash_operand (TREE_VALUE (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3778, __FUNCTION__, (TREE_LIST)))->list.value), hstate, flags); |
| 3779 | return; |
| 3780 | case CONSTRUCTOR: |
| 3781 | { |
| 3782 | unsigned HOST_WIDE_INTlong idx; |
| 3783 | tree field, value; |
| 3784 | flags &= ~OEP_ADDRESS_OF; |
| 3785 | hstate.add_int (CONSTRUCTOR_NO_CLEARING (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3785, __FUNCTION__, (CONSTRUCTOR)))->base.public_flag)); |
| 3786 | FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t), idx, field, value)for (idx = 0; (idx >= vec_safe_length (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3786, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))) ? false : (((void) (value = (*((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3786, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ idx].value)), (field = (*((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3786, __FUNCTION__, (CONSTRUCTOR)))->constructor.elts))[ idx].index), true); (idx)++) |
| 3787 | { |
| 3788 | /* In GIMPLE the indexes can be either NULL or matching i. */ |
| 3789 | if (field == NULL_TREE(tree) __null) |
| 3790 | field = bitsize_int (idx)size_int_kind (idx, stk_bitsizetype); |
| 3791 | hash_operand (field, hstate, flags); |
| 3792 | hash_operand (value, hstate, flags); |
| 3793 | } |
| 3794 | return; |
| 3795 | } |
| 3796 | case STATEMENT_LIST: |
| 3797 | { |
| 3798 | tree_stmt_iterator i; |
| 3799 | for (i = tsi_start (CONST_CAST_TREE (t)(const_cast<union tree_node *> (((t))))); |
| 3800 | !tsi_end_p (i); tsi_next (&i)) |
| 3801 | hash_operand (tsi_stmt (i), hstate, flags); |
| 3802 | return; |
| 3803 | } |
| 3804 | case TREE_VEC: |
| 3805 | for (i = 0; i < TREE_VEC_LENGTH (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3805, __FUNCTION__, (TREE_VEC)))->base.u.length); ++i) |
| 3806 | hash_operand (TREE_VEC_ELT (t, i)(*((const_cast<tree *> (tree_vec_elt_check ((t), (i), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3806, __FUNCTION__))))), hstate, flags); |
| 3807 | return; |
| 3808 | case IDENTIFIER_NODE: |
| 3809 | hstate.add_object (IDENTIFIER_HASH_VALUE (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3809, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.hash_value )); |
| 3810 | return; |
| 3811 | case FUNCTION_DECL: |
| 3812 | /* When referring to a built-in FUNCTION_DECL, use the __builtin__ form. |
| 3813 | Otherwise nodes that compare equal according to operand_equal_p might |
| 3814 | get different hash codes. However, don't do this for machine specific |
| 3815 | or front end builtins, since the function code is overloaded in those |
| 3816 | cases. */ |
| 3817 | if (DECL_BUILT_IN_CLASS (t)((built_in_class) (tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3817, __FUNCTION__, (FUNCTION_DECL)))->function_decl.built_in_class ) == BUILT_IN_NORMAL |
| 3818 | && builtin_decl_explicit_p (DECL_FUNCTION_CODE (t))) |
| 3819 | { |
| 3820 | t = builtin_decl_explicit (DECL_FUNCTION_CODE (t)); |
| 3821 | code = TREE_CODE (t)((enum tree_code) (t)->base.code); |
| 3822 | } |
| 3823 | /* FALL THROUGH */ |
| 3824 | default: |
| 3825 | if (POLY_INT_CST_P (t)(1 > 1 && ((enum tree_code) (t)->base.code) == POLY_INT_CST )) |
| 3826 | { |
| 3827 | for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS1; ++i) |
| 3828 | hstate.add_wide_int (wi::to_wide (POLY_INT_CST_COEFF (t, i)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3828, __FUNCTION__, (POLY_INT_CST)))->poly_int_cst.coeffs [i]))); |
| 3829 | return; |
| 3830 | } |
| 3831 | tclass = TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)]; |
| 3832 | |
| 3833 | if (tclass == tcc_declaration) |
| 3834 | { |
| 3835 | /* DECL's have a unique ID */ |
| 3836 | hstate.add_hwi (DECL_UID (t)((contains_struct_check ((t), (TS_DECL_MINIMAL), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3836, __FUNCTION__))->decl_minimal.uid)); |
| 3837 | } |
| 3838 | else if (tclass == tcc_comparison && !commutative_tree_code (code)) |
| 3839 | { |
| 3840 | /* For comparisons that can be swapped, use the lower |
| 3841 | tree code. */ |
| 3842 | enum tree_code ccode = swap_tree_comparison (code); |
| 3843 | if (code < ccode) |
| 3844 | ccode = code; |
| 3845 | hstate.add_object (ccode); |
| 3846 | hash_operand (TREE_OPERAND (t, ccode != code)(*((const_cast<tree*> (tree_operand_check ((t), (ccode != code), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3846, __FUNCTION__))))), hstate, flags); |
| 3847 | hash_operand (TREE_OPERAND (t, ccode == code)(*((const_cast<tree*> (tree_operand_check ((t), (ccode == code), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3847, __FUNCTION__))))), hstate, flags); |
| 3848 | } |
| 3849 | else if (CONVERT_EXPR_CODE_P (code)((code) == NOP_EXPR || (code) == CONVERT_EXPR)) |
| 3850 | { |
| 3851 | /* NOP_EXPR and CONVERT_EXPR are considered equal by |
| 3852 | operand_equal_p. */ |
| 3853 | enum tree_code ccode = NOP_EXPR; |
| 3854 | hstate.add_object (ccode); |
| 3855 | |
| 3856 | /* Don't hash the type, that can lead to having nodes which |
| 3857 | compare equal according to operand_equal_p, but which |
| 3858 | have different hash codes. Make sure to include signedness |
| 3859 | in the hash computation. */ |
| 3860 | hstate.add_int (TYPE_UNSIGNED (TREE_TYPE (t))((tree_class_check ((((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3860, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3860, __FUNCTION__))->base.u.bits.unsigned_flag)); |
| 3861 | hash_operand (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3861, __FUNCTION__))))), hstate, flags); |
| 3862 | } |
| 3863 | /* For OEP_ADDRESS_OF, hash MEM_EXPR[&decl, 0] the same as decl. */ |
| 3864 | else if (code == MEM_REF |
| 3865 | && (flags & OEP_ADDRESS_OF) != 0 |
| 3866 | && TREE_CODE (TREE_OPERAND (t, 0))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3866, __FUNCTION__))))))->base.code) == ADDR_EXPR |
| 3867 | && DECL_P (TREE_OPERAND (TREE_OPERAND (t, 0), 0))(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) ((*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3867, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3867, __FUNCTION__))))))->base.code))] == tcc_declaration ) |
| 3868 | && integer_zerop (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3868, __FUNCTION__))))))) |
| 3869 | hash_operand (TREE_OPERAND (TREE_OPERAND (t, 0), 0)(*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3869, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3869, __FUNCTION__))))), |
| 3870 | hstate, flags); |
| 3871 | /* Don't ICE on FE specific trees, or their arguments etc. |
| 3872 | during operand_equal_p hash verification. */ |
| 3873 | else if (!IS_EXPR_CODE_CLASS (tclass)((tclass) >= tcc_reference && (tclass) <= tcc_expression )) |
| 3874 | gcc_assert (flags & OEP_HASH_CHECK)((void)(!(flags & OEP_HASH_CHECK) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3874, __FUNCTION__), 0 : 0)); |
| 3875 | else |
| 3876 | { |
| 3877 | unsigned int sflags = flags; |
| 3878 | |
| 3879 | hstate.add_object (code); |
| 3880 | |
| 3881 | switch (code) |
| 3882 | { |
| 3883 | case ADDR_EXPR: |
| 3884 | gcc_checking_assert (!(flags & OEP_ADDRESS_OF))((void)(!(!(flags & OEP_ADDRESS_OF)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3884, __FUNCTION__), 0 : 0)); |
| 3885 | flags |= OEP_ADDRESS_OF; |
| 3886 | sflags = flags; |
| 3887 | break; |
| 3888 | |
| 3889 | case INDIRECT_REF: |
| 3890 | case MEM_REF: |
| 3891 | case TARGET_MEM_REF: |
| 3892 | flags &= ~OEP_ADDRESS_OF; |
| 3893 | sflags = flags; |
| 3894 | break; |
| 3895 | |
| 3896 | case COMPONENT_REF: |
| 3897 | if (sflags & OEP_ADDRESS_OF) |
| 3898 | { |
| 3899 | hash_operand (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3899, __FUNCTION__))))), hstate, flags); |
| 3900 | hash_operand (DECL_FIELD_OFFSET (TREE_OPERAND (t, 1))((tree_check (((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3900, __FUNCTION__)))))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3900, __FUNCTION__, (FIELD_DECL)))->field_decl.offset), |
| 3901 | hstate, flags & ~OEP_ADDRESS_OF); |
| 3902 | hash_operand (DECL_FIELD_BIT_OFFSET (TREE_OPERAND (t, 1))((tree_check (((*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3902, __FUNCTION__)))))), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3902, __FUNCTION__, (FIELD_DECL)))->field_decl.bit_offset ), |
| 3903 | hstate, flags & ~OEP_ADDRESS_OF); |
| 3904 | return; |
| 3905 | } |
| 3906 | break; |
| 3907 | case ARRAY_REF: |
| 3908 | case ARRAY_RANGE_REF: |
| 3909 | case BIT_FIELD_REF: |
| 3910 | sflags &= ~OEP_ADDRESS_OF; |
| 3911 | break; |
| 3912 | |
| 3913 | case COND_EXPR: |
| 3914 | flags &= ~OEP_ADDRESS_OF; |
| 3915 | break; |
| 3916 | |
| 3917 | case WIDEN_MULT_PLUS_EXPR: |
| 3918 | case WIDEN_MULT_MINUS_EXPR: |
| 3919 | { |
| 3920 | /* The multiplication operands are commutative. */ |
| 3921 | inchash::hash one, two; |
| 3922 | hash_operand (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3922, __FUNCTION__))))), one, flags); |
| 3923 | hash_operand (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3923, __FUNCTION__))))), two, flags); |
| 3924 | hstate.add_commutative (one, two); |
| 3925 | hash_operand (TREE_OPERAND (t, 2)(*((const_cast<tree*> (tree_operand_check ((t), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3925, __FUNCTION__))))), two, flags); |
| 3926 | return; |
| 3927 | } |
| 3928 | |
| 3929 | case CALL_EXPR: |
| 3930 | if (CALL_EXPR_FN (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3930, __FUNCTION__, (CALL_EXPR)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3930, __FUNCTION__))))) == NULL_TREE(tree) __null) |
| 3931 | hstate.add_int (CALL_EXPR_IFN (t)((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3931, __FUNCTION__, (CALL_EXPR)))->base.u.ifn)); |
| 3932 | break; |
| 3933 | |
| 3934 | case TARGET_EXPR: |
| 3935 | /* For TARGET_EXPR, just hash on the TARGET_EXPR_SLOT. |
| 3936 | Usually different TARGET_EXPRs just should use |
| 3937 | different temporaries in their slots. */ |
| 3938 | hash_operand (TARGET_EXPR_SLOT (t)(*(tree_operand_check_code ((t), (TARGET_EXPR), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3938, __FUNCTION__))), hstate, flags); |
| 3939 | return; |
| 3940 | |
| 3941 | case OBJ_TYPE_REF: |
| 3942 | /* Virtual table reference. */ |
| 3943 | inchash::add_expr (OBJ_TYPE_REF_EXPR (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3943, __FUNCTION__, (OBJ_TYPE_REF)))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3943, __FUNCTION__))))), hstate, flags); |
| 3944 | flags &= ~OEP_ADDRESS_OF; |
| 3945 | inchash::add_expr (OBJ_TYPE_REF_TOKEN (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3945, __FUNCTION__, (OBJ_TYPE_REF)))), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3945, __FUNCTION__))))), hstate, flags); |
| 3946 | inchash::add_expr (OBJ_TYPE_REF_OBJECT (t)(*((const_cast<tree*> (tree_operand_check (((tree_check ((t), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3946, __FUNCTION__, (OBJ_TYPE_REF)))), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3946, __FUNCTION__))))), hstate, flags); |
| 3947 | if (!virtual_method_call_p (t)) |
| 3948 | return; |
| 3949 | if (tree c = obj_type_ref_class (t)) |
| 3950 | { |
| 3951 | c = TYPE_NAME (TYPE_MAIN_VARIANT (c))((tree_class_check ((((tree_class_check ((c), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3951, __FUNCTION__))->type_common.main_variant)), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3951, __FUNCTION__))->type_common.name); |
| 3952 | /* We compute mangled names only when free_lang_data is run. |
| 3953 | In that case we can hash precisely. */ |
| 3954 | if (TREE_CODE (c)((enum tree_code) (c)->base.code) == TYPE_DECL |
| 3955 | && DECL_ASSEMBLER_NAME_SET_P (c)(((contains_struct_check ((c), (TS_DECL_WITH_VIS), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3955, __FUNCTION__))->decl_with_vis.assembler_name) != ( tree) __null)) |
| 3956 | hstate.add_object |
| 3957 | (IDENTIFIER_HASH_VALUE((tree_check ((decl_assembler_name (c)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3958, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.hash_value ) |
| 3958 | (DECL_ASSEMBLER_NAME (c))((tree_check ((decl_assembler_name (c)), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3958, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.hash_value )); |
| 3959 | } |
| 3960 | return; |
| 3961 | default: |
| 3962 | break; |
| 3963 | } |
| 3964 | |
| 3965 | /* Don't hash the type, that can lead to having nodes which |
| 3966 | compare equal according to operand_equal_p, but which |
| 3967 | have different hash codes. */ |
| 3968 | if (code == NON_LVALUE_EXPR) |
| 3969 | { |
| 3970 | /* Make sure to include signness in the hash computation. */ |
| 3971 | hstate.add_int (TYPE_UNSIGNED (TREE_TYPE (t))((tree_class_check ((((contains_struct_check ((t), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3971, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3971, __FUNCTION__))->base.u.bits.unsigned_flag)); |
| 3972 | hash_operand (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3972, __FUNCTION__))))), hstate, flags); |
| 3973 | } |
| 3974 | |
| 3975 | else if (commutative_tree_code (code)) |
| 3976 | { |
| 3977 | /* It's a commutative expression. We want to hash it the same |
| 3978 | however it appears. We do this by first hashing both operands |
| 3979 | and then rehashing based on the order of their independent |
| 3980 | hashes. */ |
| 3981 | inchash::hash one, two; |
| 3982 | hash_operand (TREE_OPERAND (t, 0)(*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3982, __FUNCTION__))))), one, flags); |
| 3983 | hash_operand (TREE_OPERAND (t, 1)(*((const_cast<tree*> (tree_operand_check ((t), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3983, __FUNCTION__))))), two, flags); |
| 3984 | hstate.add_commutative (one, two); |
| 3985 | } |
| 3986 | else |
| 3987 | for (i = TREE_OPERAND_LENGTH (t)tree_operand_length (t) - 1; i >= 0; --i) |
| 3988 | hash_operand (TREE_OPERAND (t, i)(*((const_cast<tree*> (tree_operand_check ((t), (i), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 3988, __FUNCTION__))))), hstate, |
| 3989 | i == 0 ? flags : sflags); |
| 3990 | } |
| 3991 | return; |
| 3992 | } |
| 3993 | } |
| 3994 | |
| 3995 | bool |
| 3996 | operand_compare::verify_hash_value (const_tree arg0, const_tree arg1, |
| 3997 | unsigned int flags, bool *ret) |
| 3998 | { |
| 3999 | /* When checking and unless comparing DECL names, verify that if |
| 4000 | the outermost operand_equal_p call returns non-zero then ARG0 |
| 4001 | and ARG1 have the same hash value. */ |
| 4002 | if (flag_checkingglobal_options.x_flag_checking && !(flags & OEP_NO_HASH_CHECK)) |
| 4003 | { |
| 4004 | if (operand_equal_p (arg0, arg1, flags | OEP_NO_HASH_CHECK)) |
| 4005 | { |
| 4006 | if (arg0 != arg1 && !(flags & OEP_DECL_NAME)) |
| 4007 | { |
| 4008 | inchash::hash hstate0 (0), hstate1 (0); |
| 4009 | hash_operand (arg0, hstate0, flags | OEP_HASH_CHECK); |
| 4010 | hash_operand (arg1, hstate1, flags | OEP_HASH_CHECK); |
| 4011 | hashval_t h0 = hstate0.end (); |
| 4012 | hashval_t h1 = hstate1.end (); |
| 4013 | gcc_assert (h0 == h1)((void)(!(h0 == h1) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4013, __FUNCTION__), 0 : 0)); |
| 4014 | } |
| 4015 | *ret = true; |
| 4016 | } |
| 4017 | else |
| 4018 | *ret = false; |
| 4019 | |
| 4020 | return true; |
| 4021 | } |
| 4022 | |
| 4023 | return false; |
| 4024 | } |
| 4025 | |
| 4026 | |
| 4027 | static operand_compare default_compare_instance; |
| 4028 | |
| 4029 | /* Conveinece wrapper around operand_compare class because usually we do |
| 4030 | not need to play with the valueizer. */ |
| 4031 | |
| 4032 | bool |
| 4033 | operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) |
| 4034 | { |
| 4035 | return default_compare_instance.operand_equal_p (arg0, arg1, flags); |
| 4036 | } |
| 4037 | |
| 4038 | namespace inchash |
| 4039 | { |
| 4040 | |
| 4041 | /* Generate a hash value for an expression. This can be used iteratively |
| 4042 | by passing a previous result as the HSTATE argument. |
| 4043 | |
| 4044 | This function is intended to produce the same hash for expressions which |
| 4045 | would compare equal using operand_equal_p. */ |
| 4046 | void |
| 4047 | add_expr (const_tree t, inchash::hash &hstate, unsigned int flags) |
| 4048 | { |
| 4049 | default_compare_instance.hash_operand (t, hstate, flags); |
| 4050 | } |
| 4051 | |
| 4052 | } |
| 4053 | |
| 4054 | /* Similar to operand_equal_p, but see if ARG0 might be a variant of ARG1 |
| 4055 | with a different signedness or a narrower precision. */ |
| 4056 | |
| 4057 | static bool |
| 4058 | operand_equal_for_comparison_p (tree arg0, tree arg1) |
| 4059 | { |
| 4060 | if (operand_equal_p (arg0, arg1, 0)) |
| 4061 | return true; |
| 4062 | |
| 4063 | if (! INTEGRAL_TYPE_P (TREE_TYPE (arg0))(((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4063, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4063, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((arg0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4063, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4064 | || ! INTEGRAL_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4064, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4064, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4064, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE )) |
| 4065 | return false; |
| 4066 | |
| 4067 | /* Discard any conversions that don't change the modes of ARG0 and ARG1 |
| 4068 | and see if the inner values are the same. This removes any |
| 4069 | signedness comparison, which doesn't matter here. */ |
| 4070 | tree op0 = arg0; |
| 4071 | tree op1 = arg1; |
| 4072 | STRIP_NOPS (op0)(op0) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((op0))))); |
| 4073 | STRIP_NOPS (op1)(op1) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((op1))))); |
| 4074 | if (operand_equal_p (op0, op1, 0)) |
| 4075 | return true; |
| 4076 | |
| 4077 | /* Discard a single widening conversion from ARG1 and see if the inner |
| 4078 | value is the same as ARG0. */ |
| 4079 | if (CONVERT_EXPR_P (arg1)((((enum tree_code) (arg1)->base.code)) == NOP_EXPR || ((( enum tree_code) (arg1)->base.code)) == CONVERT_EXPR) |
| 4080 | && INTEGRAL_TYPE_P (TREE_TYPE (TREE_OPERAND (arg1, 0)))(((enum tree_code) (((contains_struct_check (((*((const_cast< tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4080, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4081 | && TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (arg1, 0)))((tree_class_check ((((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4081, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4081, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4081, __FUNCTION__))->type_common.precision) |
| 4082 | < TYPE_PRECISION (TREE_TYPE (arg1))((tree_class_check ((((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4082, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4082, __FUNCTION__))->type_common.precision) |
| 4083 | && operand_equal_p (arg0, TREE_OPERAND (arg1, 0)(*((const_cast<tree*> (tree_operand_check ((arg1), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4083, __FUNCTION__))))), 0)) |
| 4084 | return true; |
| 4085 | |
| 4086 | return false; |
| 4087 | } |
| 4088 | |
| 4089 | /* See if ARG is an expression that is either a comparison or is performing |
| 4090 | arithmetic on comparisons. The comparisons must only be comparing |
| 4091 | two different values, which will be stored in *CVAL1 and *CVAL2; if |
| 4092 | they are nonzero it means that some operands have already been found. |
| 4093 | No variables may be used anywhere else in the expression except in the |
| 4094 | comparisons. |
| 4095 | |
| 4096 | If this is true, return 1. Otherwise, return zero. */ |
| 4097 | |
| 4098 | static bool |
| 4099 | twoval_comparison_p (tree arg, tree *cval1, tree *cval2) |
| 4100 | { |
| 4101 | enum tree_code code = TREE_CODE (arg)((enum tree_code) (arg)->base.code); |
| 4102 | enum tree_code_class tclass = TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)]; |
| 4103 | |
| 4104 | /* We can handle some of the tcc_expression cases here. */ |
| 4105 | if (tclass == tcc_expression && code == TRUTH_NOT_EXPR) |
| 4106 | tclass = tcc_unary; |
| 4107 | else if (tclass == tcc_expression |
| 4108 | && (code == TRUTH_ANDIF_EXPR || code == TRUTH_ORIF_EXPR |
| 4109 | || code == COMPOUND_EXPR)) |
| 4110 | tclass = tcc_binary; |
| 4111 | |
| 4112 | switch (tclass) |
| 4113 | { |
| 4114 | case tcc_unary: |
| 4115 | return twoval_comparison_p (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4115, __FUNCTION__))))), cval1, cval2); |
| 4116 | |
| 4117 | case tcc_binary: |
| 4118 | return (twoval_comparison_p (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4118, __FUNCTION__))))), cval1, cval2) |
| 4119 | && twoval_comparison_p (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4119, __FUNCTION__))))), cval1, cval2)); |
| 4120 | |
| 4121 | case tcc_constant: |
| 4122 | return true; |
| 4123 | |
| 4124 | case tcc_expression: |
| 4125 | if (code == COND_EXPR) |
| 4126 | return (twoval_comparison_p (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4126, __FUNCTION__))))), cval1, cval2) |
| 4127 | && twoval_comparison_p (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4127, __FUNCTION__))))), cval1, cval2) |
| 4128 | && twoval_comparison_p (TREE_OPERAND (arg, 2)(*((const_cast<tree*> (tree_operand_check ((arg), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4128, __FUNCTION__))))), cval1, cval2)); |
| 4129 | return false; |
| 4130 | |
| 4131 | case tcc_comparison: |
| 4132 | /* First see if we can handle the first operand, then the second. For |
| 4133 | the second operand, we know *CVAL1 can't be zero. It must be that |
| 4134 | one side of the comparison is each of the values; test for the |
| 4135 | case where this isn't true by failing if the two operands |
| 4136 | are the same. */ |
| 4137 | |
| 4138 | if (operand_equal_p (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4138, __FUNCTION__))))), |
| 4139 | TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4139, __FUNCTION__))))), 0)) |
| 4140 | return false; |
| 4141 | |
| 4142 | if (*cval1 == 0) |
| 4143 | *cval1 = TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4143, __FUNCTION__))))); |
| 4144 | else if (operand_equal_p (*cval1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4144, __FUNCTION__))))), 0)) |
| 4145 | ; |
| 4146 | else if (*cval2 == 0) |
| 4147 | *cval2 = TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4147, __FUNCTION__))))); |
| 4148 | else if (operand_equal_p (*cval2, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4148, __FUNCTION__))))), 0)) |
| 4149 | ; |
| 4150 | else |
| 4151 | return false; |
| 4152 | |
| 4153 | if (operand_equal_p (*cval1, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4153, __FUNCTION__))))), 0)) |
| 4154 | ; |
| 4155 | else if (*cval2 == 0) |
| 4156 | *cval2 = TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4156, __FUNCTION__))))); |
| 4157 | else if (operand_equal_p (*cval2, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4157, __FUNCTION__))))), 0)) |
| 4158 | ; |
| 4159 | else |
| 4160 | return false; |
| 4161 | |
| 4162 | return true; |
| 4163 | |
| 4164 | default: |
| 4165 | return false; |
| 4166 | } |
| 4167 | } |
| 4168 | |
| 4169 | /* ARG is a tree that is known to contain just arithmetic operations and |
| 4170 | comparisons. Evaluate the operations in the tree substituting NEW0 for |
| 4171 | any occurrence of OLD0 as an operand of a comparison and likewise for |
| 4172 | NEW1 and OLD1. */ |
| 4173 | |
| 4174 | static tree |
| 4175 | eval_subst (location_t loc, tree arg, tree old0, tree new0, |
| 4176 | tree old1, tree new1) |
| 4177 | { |
| 4178 | tree type = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4178, __FUNCTION__))->typed.type); |
| 4179 | enum tree_code code = TREE_CODE (arg)((enum tree_code) (arg)->base.code); |
| 4180 | enum tree_code_class tclass = TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)]; |
| 4181 | |
| 4182 | /* We can handle some of the tcc_expression cases here. */ |
| 4183 | if (tclass == tcc_expression && code == TRUTH_NOT_EXPR) |
| 4184 | tclass = tcc_unary; |
| 4185 | else if (tclass == tcc_expression |
| 4186 | && (code == TRUTH_ANDIF_EXPR || code == TRUTH_ORIF_EXPR)) |
| 4187 | tclass = tcc_binary; |
| 4188 | |
| 4189 | switch (tclass) |
| 4190 | { |
| 4191 | case tcc_unary: |
| 4192 | return fold_build1_loc (loc, code, type, |
| 4193 | eval_subst (loc, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4193, __FUNCTION__))))), |
| 4194 | old0, new0, old1, new1)); |
| 4195 | |
| 4196 | case tcc_binary: |
| 4197 | return fold_build2_loc (loc, code, type, |
| 4198 | eval_subst (loc, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4198, __FUNCTION__))))), |
| 4199 | old0, new0, old1, new1), |
| 4200 | eval_subst (loc, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4200, __FUNCTION__))))), |
| 4201 | old0, new0, old1, new1)); |
| 4202 | |
| 4203 | case tcc_expression: |
| 4204 | switch (code) |
| 4205 | { |
| 4206 | case SAVE_EXPR: |
| 4207 | return eval_subst (loc, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4207, __FUNCTION__))))), old0, new0, |
| 4208 | old1, new1); |
| 4209 | |
| 4210 | case COMPOUND_EXPR: |
| 4211 | return eval_subst (loc, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4211, __FUNCTION__))))), old0, new0, |
| 4212 | old1, new1); |
| 4213 | |
| 4214 | case COND_EXPR: |
| 4215 | return fold_build3_loc (loc, code, type, |
| 4216 | eval_subst (loc, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4216, __FUNCTION__))))), |
| 4217 | old0, new0, old1, new1), |
| 4218 | eval_subst (loc, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4218, __FUNCTION__))))), |
| 4219 | old0, new0, old1, new1), |
| 4220 | eval_subst (loc, TREE_OPERAND (arg, 2)(*((const_cast<tree*> (tree_operand_check ((arg), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4220, __FUNCTION__))))), |
| 4221 | old0, new0, old1, new1)); |
| 4222 | default: |
| 4223 | break; |
| 4224 | } |
| 4225 | /* Fall through - ??? */ |
| 4226 | |
| 4227 | case tcc_comparison: |
| 4228 | { |
| 4229 | tree arg0 = TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4229, __FUNCTION__))))); |
| 4230 | tree arg1 = TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4230, __FUNCTION__))))); |
| 4231 | |
| 4232 | /* We need to check both for exact equality and tree equality. The |
| 4233 | former will be true if the operand has a side-effect. In that |
| 4234 | case, we know the operand occurred exactly once. */ |
| 4235 | |
| 4236 | if (arg0 == old0 || operand_equal_p (arg0, old0, 0)) |
| 4237 | arg0 = new0; |
| 4238 | else if (arg0 == old1 || operand_equal_p (arg0, old1, 0)) |
| 4239 | arg0 = new1; |
| 4240 | |
| 4241 | if (arg1 == old0 || operand_equal_p (arg1, old0, 0)) |
| 4242 | arg1 = new0; |
| 4243 | else if (arg1 == old1 || operand_equal_p (arg1, old1, 0)) |
| 4244 | arg1 = new1; |
| 4245 | |
| 4246 | return fold_build2_loc (loc, code, type, arg0, arg1); |
| 4247 | } |
| 4248 | |
| 4249 | default: |
| 4250 | return arg; |
| 4251 | } |
| 4252 | } |
| 4253 | |
| 4254 | /* Return a tree for the case when the result of an expression is RESULT |
| 4255 | converted to TYPE and OMITTED was previously an operand of the expression |
| 4256 | but is now not needed (e.g., we folded OMITTED * 0). |
| 4257 | |
| 4258 | If OMITTED has side effects, we must evaluate it. Otherwise, just do |
| 4259 | the conversion of RESULT to TYPE. */ |
| 4260 | |
| 4261 | tree |
| 4262 | omit_one_operand_loc (location_t loc, tree type, tree result, tree omitted) |
| 4263 | { |
| 4264 | tree t = fold_convert_loc (loc, type, result); |
| 4265 | |
| 4266 | /* If the resulting operand is an empty statement, just return the omitted |
| 4267 | statement casted to void. */ |
| 4268 | if (IS_EMPTY_STMT (t)(((enum tree_code) (t)->base.code) == NOP_EXPR && ( ((enum tree_code) (((contains_struct_check ((t), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4268, __FUNCTION__))->typed.type))->base.code) == VOID_TYPE ) && integer_zerop ((*((const_cast<tree*> (tree_operand_check ((t), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4268, __FUNCTION__))))))) && TREE_SIDE_EFFECTS (omitted)((non_type_check ((omitted), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4268, __FUNCTION__))->base.side_effects_flag)) |
| 4269 | return build1_loc (loc, NOP_EXPR, void_type_nodeglobal_trees[TI_VOID_TYPE], |
| 4270 | fold_ignored_result (omitted)); |
| 4271 | |
| 4272 | if (TREE_SIDE_EFFECTS (omitted)((non_type_check ((omitted), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4272, __FUNCTION__))->base.side_effects_flag)) |
| 4273 | return build2_loc (loc, COMPOUND_EXPR, type, |
| 4274 | fold_ignored_result (omitted), t); |
| 4275 | |
| 4276 | return non_lvalue_loc (loc, t); |
| 4277 | } |
| 4278 | |
| 4279 | /* Return a tree for the case when the result of an expression is RESULT |
| 4280 | converted to TYPE and OMITTED1 and OMITTED2 were previously operands |
| 4281 | of the expression but are now not needed. |
| 4282 | |
| 4283 | If OMITTED1 or OMITTED2 has side effects, they must be evaluated. |
| 4284 | If both OMITTED1 and OMITTED2 have side effects, OMITTED1 is |
| 4285 | evaluated before OMITTED2. Otherwise, if neither has side effects, |
| 4286 | just do the conversion of RESULT to TYPE. */ |
| 4287 | |
| 4288 | tree |
| 4289 | omit_two_operands_loc (location_t loc, tree type, tree result, |
| 4290 | tree omitted1, tree omitted2) |
| 4291 | { |
| 4292 | tree t = fold_convert_loc (loc, type, result); |
| 4293 | |
| 4294 | if (TREE_SIDE_EFFECTS (omitted2)((non_type_check ((omitted2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4294, __FUNCTION__))->base.side_effects_flag)) |
| 4295 | t = build2_loc (loc, COMPOUND_EXPR, type, omitted2, t); |
| 4296 | if (TREE_SIDE_EFFECTS (omitted1)((non_type_check ((omitted1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4296, __FUNCTION__))->base.side_effects_flag)) |
| 4297 | t = build2_loc (loc, COMPOUND_EXPR, type, omitted1, t); |
| 4298 | |
| 4299 | return TREE_CODE (t)((enum tree_code) (t)->base.code) != COMPOUND_EXPR ? non_lvalue_loc (loc, t) : t; |
| 4300 | } |
| 4301 | |
| 4302 | |
| 4303 | /* Return a simplified tree node for the truth-negation of ARG. This |
| 4304 | never alters ARG itself. We assume that ARG is an operation that |
| 4305 | returns a truth value (0 or 1). |
| 4306 | |
| 4307 | FIXME: one would think we would fold the result, but it causes |
| 4308 | problems with the dominator optimizer. */ |
| 4309 | |
| 4310 | static tree |
| 4311 | fold_truth_not_expr (location_t loc, tree arg) |
| 4312 | { |
| 4313 | tree type = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4313, __FUNCTION__))->typed.type); |
| 4314 | enum tree_code code = TREE_CODE (arg)((enum tree_code) (arg)->base.code); |
| 4315 | location_t loc1, loc2; |
| 4316 | |
| 4317 | /* If this is a comparison, we can simply invert it, except for |
| 4318 | floating-point non-equality comparisons, in which case we just |
| 4319 | enclose a TRUTH_NOT_EXPR around what we have. */ |
| 4320 | |
| 4321 | if (TREE_CODE_CLASS (code)tree_code_type_tmpl <0>::tree_code_type[(int) (code)] == tcc_comparison) |
| 4322 | { |
| 4323 | tree op_type = TREE_TYPE (TREE_OPERAND (arg, 0))((contains_struct_check (((*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4323, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4323, __FUNCTION__))->typed.type); |
| 4324 | if (FLOAT_TYPE_P (op_type)((((enum tree_code) (op_type)->base.code) == REAL_TYPE) || ((((enum tree_code) (op_type)->base.code) == COMPLEX_TYPE || (((enum tree_code) (op_type)->base.code) == VECTOR_TYPE )) && (((enum tree_code) (((contains_struct_check ((op_type ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4324, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE ))) |
| 4325 | && flag_trapping_mathglobal_options.x_flag_trapping_math |
| 4326 | && code != ORDERED_EXPR && code != UNORDERED_EXPR |
| 4327 | && code != NE_EXPR && code != EQ_EXPR) |
| 4328 | return NULL_TREE(tree) __null; |
| 4329 | |
| 4330 | code = invert_tree_comparison (code, HONOR_NANS (op_type)); |
| 4331 | if (code == ERROR_MARK) |
| 4332 | return NULL_TREE(tree) __null; |
| 4333 | |
| 4334 | tree ret = build2_loc (loc, code, type, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4334, __FUNCTION__))))), |
| 4335 | TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4335, __FUNCTION__)))))); |
| 4336 | copy_warning (ret, arg); |
| 4337 | return ret; |
| 4338 | } |
| 4339 | |
| 4340 | switch (code) |
| 4341 | { |
| 4342 | case INTEGER_CST: |
| 4343 | return constant_boolean_node (integer_zerop (arg), type); |
| 4344 | |
| 4345 | case TRUTH_AND_EXPR: |
| 4346 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4346, __FUNCTION__))))), loc); |
| 4347 | loc2 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4347, __FUNCTION__))))), loc); |
| 4348 | return build2_loc (loc, TRUTH_OR_EXPR, type, |
| 4349 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4349, __FUNCTION__)))))), |
| 4350 | invert_truthvalue_loc (loc2, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4350, __FUNCTION__))))))); |
| 4351 | |
| 4352 | case TRUTH_OR_EXPR: |
| 4353 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4353, __FUNCTION__))))), loc); |
| 4354 | loc2 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4354, __FUNCTION__))))), loc); |
| 4355 | return build2_loc (loc, TRUTH_AND_EXPR, type, |
| 4356 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4356, __FUNCTION__)))))), |
| 4357 | invert_truthvalue_loc (loc2, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4357, __FUNCTION__))))))); |
| 4358 | |
| 4359 | case TRUTH_XOR_EXPR: |
| 4360 | /* Here we can invert either operand. We invert the first operand |
| 4361 | unless the second operand is a TRUTH_NOT_EXPR in which case our |
| 4362 | result is the XOR of the first operand with the inside of the |
| 4363 | negation of the second operand. */ |
| 4364 | |
| 4365 | if (TREE_CODE (TREE_OPERAND (arg, 1))((enum tree_code) ((*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4365, __FUNCTION__))))))->base.code) == TRUTH_NOT_EXPR) |
| 4366 | return build2_loc (loc, TRUTH_XOR_EXPR, type, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4366, __FUNCTION__))))), |
| 4367 | TREE_OPERAND (TREE_OPERAND (arg, 1), 0)(*((const_cast<tree*> (tree_operand_check (((*((const_cast <tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4367, __FUNCTION__)))))), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4367, __FUNCTION__)))))); |
| 4368 | else |
| 4369 | return build2_loc (loc, TRUTH_XOR_EXPR, type, |
| 4370 | invert_truthvalue_loc (loc, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4370, __FUNCTION__)))))), |
| 4371 | TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4371, __FUNCTION__)))))); |
| 4372 | |
| 4373 | case TRUTH_ANDIF_EXPR: |
| 4374 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4374, __FUNCTION__))))), loc); |
| 4375 | loc2 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4375, __FUNCTION__))))), loc); |
| 4376 | return build2_loc (loc, TRUTH_ORIF_EXPR, type, |
| 4377 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4377, __FUNCTION__)))))), |
| 4378 | invert_truthvalue_loc (loc2, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4378, __FUNCTION__))))))); |
| 4379 | |
| 4380 | case TRUTH_ORIF_EXPR: |
| 4381 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4381, __FUNCTION__))))), loc); |
| 4382 | loc2 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4382, __FUNCTION__))))), loc); |
| 4383 | return build2_loc (loc, TRUTH_ANDIF_EXPR, type, |
| 4384 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4384, __FUNCTION__)))))), |
| 4385 | invert_truthvalue_loc (loc2, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4385, __FUNCTION__))))))); |
| 4386 | |
| 4387 | case TRUTH_NOT_EXPR: |
| 4388 | return TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4388, __FUNCTION__))))); |
| 4389 | |
| 4390 | case COND_EXPR: |
| 4391 | { |
| 4392 | tree arg1 = TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4392, __FUNCTION__))))); |
| 4393 | tree arg2 = TREE_OPERAND (arg, 2)(*((const_cast<tree*> (tree_operand_check ((arg), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4393, __FUNCTION__))))); |
| 4394 | |
| 4395 | loc1 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4395, __FUNCTION__))))), loc); |
| 4396 | loc2 = expr_location_or (TREE_OPERAND (arg, 2)(*((const_cast<tree*> (tree_operand_check ((arg), (2), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4396, __FUNCTION__))))), loc); |
| 4397 | |
| 4398 | /* A COND_EXPR may have a throw as one operand, which |
| 4399 | then has void type. Just leave void operands |
| 4400 | as they are. */ |
| 4401 | return build3_loc (loc, COND_EXPR, type, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4401, __FUNCTION__))))), |
| 4402 | VOID_TYPE_P (TREE_TYPE (arg1))(((enum tree_code) (((contains_struct_check ((arg1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4402, __FUNCTION__))->typed.type))->base.code) == VOID_TYPE ) |
| 4403 | ? arg1 : invert_truthvalue_loc (loc1, arg1), |
| 4404 | VOID_TYPE_P (TREE_TYPE (arg2))(((enum tree_code) (((contains_struct_check ((arg2), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4404, __FUNCTION__))->typed.type))->base.code) == VOID_TYPE ) |
| 4405 | ? arg2 : invert_truthvalue_loc (loc2, arg2)); |
| 4406 | } |
| 4407 | |
| 4408 | case COMPOUND_EXPR: |
| 4409 | loc1 = expr_location_or (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4409, __FUNCTION__))))), loc); |
| 4410 | return build2_loc (loc, COMPOUND_EXPR, type, |
| 4411 | TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4411, __FUNCTION__))))), |
| 4412 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4412, __FUNCTION__))))))); |
| 4413 | |
| 4414 | case NON_LVALUE_EXPR: |
| 4415 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4415, __FUNCTION__))))), loc); |
| 4416 | return invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4416, __FUNCTION__)))))); |
| 4417 | |
| 4418 | CASE_CONVERTcase NOP_EXPR: case CONVERT_EXPR: |
| 4419 | if (TREE_CODE (TREE_TYPE (arg))((enum tree_code) (((contains_struct_check ((arg), (TS_TYPED) , "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4419, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE) |
| 4420 | return build1_loc (loc, TRUTH_NOT_EXPR, type, arg); |
| 4421 | |
| 4422 | /* fall through */ |
| 4423 | |
| 4424 | case FLOAT_EXPR: |
| 4425 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4425, __FUNCTION__))))), loc); |
| 4426 | return build1_loc (loc, TREE_CODE (arg)((enum tree_code) (arg)->base.code), type, |
| 4427 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4427, __FUNCTION__))))))); |
| 4428 | |
| 4429 | case BIT_AND_EXPR: |
| 4430 | if (!integer_onep (TREE_OPERAND (arg, 1)(*((const_cast<tree*> (tree_operand_check ((arg), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4430, __FUNCTION__))))))) |
| 4431 | return NULL_TREE(tree) __null; |
| 4432 | return build2_loc (loc, EQ_EXPR, type, arg, build_int_cst (type, 0)); |
| 4433 | |
| 4434 | case SAVE_EXPR: |
| 4435 | return build1_loc (loc, TRUTH_NOT_EXPR, type, arg); |
| 4436 | |
| 4437 | case CLEANUP_POINT_EXPR: |
| 4438 | loc1 = expr_location_or (TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4438, __FUNCTION__))))), loc); |
| 4439 | return build1_loc (loc, CLEANUP_POINT_EXPR, type, |
| 4440 | invert_truthvalue_loc (loc1, TREE_OPERAND (arg, 0)(*((const_cast<tree*> (tree_operand_check ((arg), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4440, __FUNCTION__))))))); |
| 4441 | |
| 4442 | default: |
| 4443 | return NULL_TREE(tree) __null; |
| 4444 | } |
| 4445 | } |
| 4446 | |
| 4447 | /* Fold the truth-negation of ARG. This never alters ARG itself. We |
| 4448 | assume that ARG is an operation that returns a truth value (0 or 1 |
| 4449 | for scalars, 0 or -1 for vectors). Return the folded expression if |
| 4450 | folding is successful. Otherwise, return NULL_TREE. */ |
| 4451 | |
| 4452 | static tree |
| 4453 | fold_invert_truthvalue (location_t loc, tree arg) |
| 4454 | { |
| 4455 | tree type = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4455, __FUNCTION__))->typed.type); |
| 4456 | return fold_unary_loc (loc, VECTOR_TYPE_P (type)(((enum tree_code) (type)->base.code) == VECTOR_TYPE) |
| 4457 | ? BIT_NOT_EXPR |
| 4458 | : TRUTH_NOT_EXPR, |
| 4459 | type, arg); |
| 4460 | } |
| 4461 | |
| 4462 | /* Return a simplified tree node for the truth-negation of ARG. This |
| 4463 | never alters ARG itself. We assume that ARG is an operation that |
| 4464 | returns a truth value (0 or 1 for scalars, 0 or -1 for vectors). */ |
| 4465 | |
| 4466 | tree |
| 4467 | invert_truthvalue_loc (location_t loc, tree arg) |
| 4468 | { |
| 4469 | if (TREE_CODE (arg)((enum tree_code) (arg)->base.code) == ERROR_MARK) |
| 4470 | return arg; |
| 4471 | |
| 4472 | tree type = TREE_TYPE (arg)((contains_struct_check ((arg), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4472, __FUNCTION__))->typed.type); |
| 4473 | return fold_build1_loc (loc, VECTOR_TYPE_P (type)(((enum tree_code) (type)->base.code) == VECTOR_TYPE) |
| 4474 | ? BIT_NOT_EXPR |
| 4475 | : TRUTH_NOT_EXPR, |
| 4476 | type, arg); |
| 4477 | } |
| 4478 | |
| 4479 | /* Return a BIT_FIELD_REF of type TYPE to refer to BITSIZE bits of INNER |
| 4480 | starting at BITPOS. The field is unsigned if UNSIGNEDP is nonzero |
| 4481 | and uses reverse storage order if REVERSEP is nonzero. ORIG_INNER |
| 4482 | is the original memory reference used to preserve the alias set of |
| 4483 | the access. */ |
| 4484 | |
| 4485 | static tree |
| 4486 | make_bit_field_ref (location_t loc, tree inner, tree orig_inner, tree type, |
| 4487 | HOST_WIDE_INTlong bitsize, poly_int64 bitpos, |
| 4488 | int unsignedp, int reversep) |
| 4489 | { |
| 4490 | tree result, bftype; |
| 4491 | |
| 4492 | /* Attempt not to lose the access path if possible. */ |
| 4493 | if (TREE_CODE (orig_inner)((enum tree_code) (orig_inner)->base.code) == COMPONENT_REF) |
| 4494 | { |
| 4495 | tree ninner = TREE_OPERAND (orig_inner, 0)(*((const_cast<tree*> (tree_operand_check ((orig_inner) , (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4495, __FUNCTION__))))); |
| 4496 | machine_mode nmode; |
| 4497 | poly_int64 nbitsize, nbitpos; |
| 4498 | tree noffset; |
| 4499 | int nunsignedp, nreversep, nvolatilep = 0; |
| 4500 | tree base = get_inner_reference (ninner, &nbitsize, &nbitpos, |
| 4501 | &noffset, &nmode, &nunsignedp, |
| 4502 | &nreversep, &nvolatilep); |
| 4503 | if (base == inner |
| 4504 | && noffset == NULL_TREE(tree) __null |
| 4505 | && known_subrange_p (bitpos, bitsize, nbitpos, nbitsize) |
| 4506 | && !reversep |
| 4507 | && !nreversep |
| 4508 | && !nvolatilep) |
| 4509 | { |
| 4510 | inner = ninner; |
| 4511 | bitpos -= nbitpos; |
| 4512 | } |
| 4513 | } |
| 4514 | |
| 4515 | alias_set_type iset = get_alias_set (orig_inner); |
| 4516 | if (iset == 0 && get_alias_set (inner) != iset) |
| 4517 | inner = fold_build2 (MEM_REF, TREE_TYPE (inner),fold_build2_loc (((location_t) 0), MEM_REF, ((contains_struct_check ((inner), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4517, __FUNCTION__))->typed.type), build_fold_addr_expr_loc (((location_t) 0), (inner)), build_int_cst (global_trees[TI_PTR_TYPE ], 0) ) |
| 4518 | build_fold_addr_expr (inner),fold_build2_loc (((location_t) 0), MEM_REF, ((contains_struct_check ((inner), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4517, __FUNCTION__))->typed.type), build_fold_addr_expr_loc (((location_t) 0), (inner)), build_int_cst (global_trees[TI_PTR_TYPE ], 0) ) |
| 4519 | build_int_cst (ptr_type_node, 0))fold_build2_loc (((location_t) 0), MEM_REF, ((contains_struct_check ((inner), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4517, __FUNCTION__))->typed.type), build_fold_addr_expr_loc (((location_t) 0), (inner)), build_int_cst (global_trees[TI_PTR_TYPE ], 0) ); |
| 4520 | |
| 4521 | if (known_eq (bitpos, 0)(!maybe_ne (bitpos, 0)) && !reversep) |
| 4522 | { |
| 4523 | tree size = TYPE_SIZE (TREE_TYPE (inner))((tree_class_check ((((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4523, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4523, __FUNCTION__))->type_common.size); |
| 4524 | if ((INTEGRAL_TYPE_P (TREE_TYPE (inner))(((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4524, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4524, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4524, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4525 | || POINTER_TYPE_P (TREE_TYPE (inner))(((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4525, __FUNCTION__))->typed.type))->base.code) == POINTER_TYPE || ((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4525, __FUNCTION__))->typed.type))->base.code) == REFERENCE_TYPE )) |
| 4526 | && tree_fits_shwi_p (size) |
| 4527 | && tree_to_shwi (size) == bitsize) |
| 4528 | return fold_convert_loc (loc, type, inner); |
| 4529 | } |
| 4530 | |
| 4531 | bftype = type; |
| 4532 | if (TYPE_PRECISION (bftype)((tree_class_check ((bftype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4532, __FUNCTION__))->type_common.precision) != bitsize |
| 4533 | || TYPE_UNSIGNED (bftype)((tree_class_check ((bftype), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4533, __FUNCTION__))->base.u.bits.unsigned_flag) == !unsignedp) |
| 4534 | bftype = build_nonstandard_integer_type (bitsize, 0); |
| 4535 | |
| 4536 | result = build3_loc (loc, BIT_FIELD_REF, bftype, inner, |
| 4537 | bitsize_int (bitsize)size_int_kind (bitsize, stk_bitsizetype), bitsize_int (bitpos)size_int_kind (bitpos, stk_bitsizetype)); |
| 4538 | REF_REVERSE_STORAGE_ORDER (result)((tree_check2 ((result), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4538, __FUNCTION__, (BIT_FIELD_REF), (MEM_REF)))->base.default_def_flag ) = reversep; |
| 4539 | |
| 4540 | if (bftype != type) |
| 4541 | result = fold_convert_loc (loc, type, result); |
| 4542 | |
| 4543 | return result; |
| 4544 | } |
| 4545 | |
| 4546 | /* Optimize a bit-field compare. |
| 4547 | |
| 4548 | There are two cases: First is a compare against a constant and the |
| 4549 | second is a comparison of two items where the fields are at the same |
| 4550 | bit position relative to the start of a chunk (byte, halfword, word) |
| 4551 | large enough to contain it. In these cases we can avoid the shift |
| 4552 | implicit in bitfield extractions. |
| 4553 | |
| 4554 | For constants, we emit a compare of the shifted constant with the |
| 4555 | BIT_AND_EXPR of a mask and a byte, halfword, or word of the operand being |
| 4556 | compared. For two fields at the same position, we do the ANDs with the |
| 4557 | similar mask and compare the result of the ANDs. |
| 4558 | |
| 4559 | CODE is the comparison code, known to be either NE_EXPR or EQ_EXPR. |
| 4560 | COMPARE_TYPE is the type of the comparison, and LHS and RHS |
| 4561 | are the left and right operands of the comparison, respectively. |
| 4562 | |
| 4563 | If the optimization described above can be done, we return the resulting |
| 4564 | tree. Otherwise we return zero. */ |
| 4565 | |
| 4566 | static tree |
| 4567 | optimize_bit_field_compare (location_t loc, enum tree_code code, |
| 4568 | tree compare_type, tree lhs, tree rhs) |
| 4569 | { |
| 4570 | poly_int64 plbitpos, plbitsize, rbitpos, rbitsize; |
| 4571 | HOST_WIDE_INTlong lbitpos, lbitsize, nbitpos, nbitsize; |
| 4572 | tree type = TREE_TYPE (lhs)((contains_struct_check ((lhs), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4572, __FUNCTION__))->typed.type); |
| 4573 | tree unsigned_type; |
| 4574 | int const_p = TREE_CODE (rhs)((enum tree_code) (rhs)->base.code) == INTEGER_CST; |
| 4575 | machine_mode lmode, rmode; |
| 4576 | scalar_int_mode nmode; |
| 4577 | int lunsignedp, runsignedp; |
| 4578 | int lreversep, rreversep; |
| 4579 | int lvolatilep = 0, rvolatilep = 0; |
| 4580 | tree linner, rinner = NULL_TREE(tree) __null; |
| 4581 | tree mask; |
| 4582 | tree offset; |
| 4583 | |
| 4584 | /* Get all the information about the extractions being done. If the bit size |
| 4585 | is the same as the size of the underlying object, we aren't doing an |
| 4586 | extraction at all and so can do nothing. We also don't want to |
| 4587 | do anything if the inner expression is a PLACEHOLDER_EXPR since we |
| 4588 | then will no longer be able to replace it. */ |
| 4589 | linner = get_inner_reference (lhs, &plbitsize, &plbitpos, &offset, &lmode, |
| 4590 | &lunsignedp, &lreversep, &lvolatilep); |
| 4591 | if (linner == lhs |
| 4592 | || !known_size_p (plbitsize) |
| 4593 | || !plbitsize.is_constant (&lbitsize) |
| 4594 | || !plbitpos.is_constant (&lbitpos) |
| 4595 | || known_eq (lbitsize, GET_MODE_BITSIZE (lmode))(!maybe_ne (lbitsize, GET_MODE_BITSIZE (lmode))) |
| 4596 | || offset != 0 |
| 4597 | || TREE_CODE (linner)((enum tree_code) (linner)->base.code) == PLACEHOLDER_EXPR |
| 4598 | || lvolatilep) |
| 4599 | return 0; |
| 4600 | |
| 4601 | if (const_p) |
| 4602 | rreversep = lreversep; |
| 4603 | else |
| 4604 | { |
| 4605 | /* If this is not a constant, we can only do something if bit positions, |
| 4606 | sizes, signedness and storage order are the same. */ |
| 4607 | rinner |
| 4608 | = get_inner_reference (rhs, &rbitsize, &rbitpos, &offset, &rmode, |
| 4609 | &runsignedp, &rreversep, &rvolatilep); |
| 4610 | |
| 4611 | if (rinner == rhs |
| 4612 | || maybe_ne (lbitpos, rbitpos) |
| 4613 | || maybe_ne (lbitsize, rbitsize) |
| 4614 | || lunsignedp != runsignedp |
| 4615 | || lreversep != rreversep |
| 4616 | || offset != 0 |
| 4617 | || TREE_CODE (rinner)((enum tree_code) (rinner)->base.code) == PLACEHOLDER_EXPR |
| 4618 | || rvolatilep) |
| 4619 | return 0; |
| 4620 | } |
| 4621 | |
| 4622 | /* Honor the C++ memory model and mimic what RTL expansion does. */ |
| 4623 | poly_uint64 bitstart = 0; |
| 4624 | poly_uint64 bitend = 0; |
| 4625 | if (TREE_CODE (lhs)((enum tree_code) (lhs)->base.code) == COMPONENT_REF) |
| 4626 | { |
| 4627 | get_bit_range (&bitstart, &bitend, lhs, &plbitpos, &offset); |
| 4628 | if (!plbitpos.is_constant (&lbitpos) || offset != NULL_TREE(tree) __null) |
| 4629 | return 0; |
| 4630 | } |
| 4631 | |
| 4632 | /* See if we can find a mode to refer to this field. We should be able to, |
| 4633 | but fail if we can't. */ |
| 4634 | if (!get_best_mode (lbitsize, lbitpos, bitstart, bitend, |
| 4635 | const_p ? TYPE_ALIGN (TREE_TYPE (linner))(((tree_class_check ((((contains_struct_check ((linner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4635, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4635, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((linner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4635, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4635, __FUNCTION__))->type_common.align) - 1) : 0) |
| 4636 | : MIN (TYPE_ALIGN (TREE_TYPE (linner)),(((((tree_class_check ((((contains_struct_check ((linner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((linner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) - 1) : 0)) < ((((tree_class_check ((((contains_struct_check ((rinner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((rinner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) - 1) : 0)) ? (( ((tree_class_check ((((contains_struct_check ((linner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((linner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) - 1) : 0)) : (( ((tree_class_check ((((contains_struct_check ((rinner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((rinner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) - 1) : 0))) |
| 4637 | TYPE_ALIGN (TREE_TYPE (rinner)))(((((tree_class_check ((((contains_struct_check ((linner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((linner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) - 1) : 0)) < ((((tree_class_check ((((contains_struct_check ((rinner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((rinner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) - 1) : 0)) ? (( ((tree_class_check ((((contains_struct_check ((linner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((linner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4636, __FUNCTION__))->type_common.align) - 1) : 0)) : (( ((tree_class_check ((((contains_struct_check ((rinner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) ? ((unsigned)1) << (((tree_class_check ((((contains_struct_check ((rinner ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4637, __FUNCTION__))->type_common.align) - 1) : 0))), |
| 4638 | BITS_PER_WORD((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)), false, &nmode)) |
| 4639 | return 0; |
| 4640 | |
| 4641 | /* Set signed and unsigned types of the precision of this mode for the |
| 4642 | shifts below. */ |
| 4643 | unsigned_type = lang_hooks.types.type_for_mode (nmode, 1); |
| 4644 | |
| 4645 | /* Compute the bit position and size for the new reference and our offset |
| 4646 | within it. If the new reference is the same size as the original, we |
| 4647 | won't optimize anything, so return zero. */ |
| 4648 | nbitsize = GET_MODE_BITSIZE (nmode); |
| 4649 | nbitpos = lbitpos & ~ (nbitsize - 1); |
| 4650 | lbitpos -= nbitpos; |
| 4651 | if (nbitsize == lbitsize) |
| 4652 | return 0; |
| 4653 | |
| 4654 | if (lreversep ? !BYTES_BIG_ENDIAN0 : BYTES_BIG_ENDIAN0) |
| 4655 | lbitpos = nbitsize - lbitsize - lbitpos; |
| 4656 | |
| 4657 | /* Make the mask to be used against the extracted field. */ |
| 4658 | mask = build_int_cst_type (unsigned_type, -1); |
| 4659 | mask = const_binop (LSHIFT_EXPR, mask, size_int (nbitsize - lbitsize)size_int_kind (nbitsize - lbitsize, stk_sizetype)); |
| 4660 | mask = const_binop (RSHIFT_EXPR, mask, |
| 4661 | size_int (nbitsize - lbitsize - lbitpos)size_int_kind (nbitsize - lbitsize - lbitpos, stk_sizetype)); |
| 4662 | |
| 4663 | if (! const_p) |
| 4664 | { |
| 4665 | if (nbitpos < 0) |
| 4666 | return 0; |
| 4667 | |
| 4668 | /* If not comparing with constant, just rework the comparison |
| 4669 | and return. */ |
| 4670 | tree t1 = make_bit_field_ref (loc, linner, lhs, unsigned_type, |
| 4671 | nbitsize, nbitpos, 1, lreversep); |
| 4672 | t1 = fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type, t1, mask); |
| 4673 | tree t2 = make_bit_field_ref (loc, rinner, rhs, unsigned_type, |
| 4674 | nbitsize, nbitpos, 1, rreversep); |
| 4675 | t2 = fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type, t2, mask); |
| 4676 | return fold_build2_loc (loc, code, compare_type, t1, t2); |
| 4677 | } |
| 4678 | |
| 4679 | /* Otherwise, we are handling the constant case. See if the constant is too |
| 4680 | big for the field. Warn and return a tree for 0 (false) if so. We do |
| 4681 | this not only for its own sake, but to avoid having to test for this |
| 4682 | error case below. If we didn't, we might generate wrong code. |
| 4683 | |
| 4684 | For unsigned fields, the constant shifted right by the field length should |
| 4685 | be all zero. For signed fields, the high-order bits should agree with |
| 4686 | the sign bit. */ |
| 4687 | |
| 4688 | if (lunsignedp) |
| 4689 | { |
| 4690 | if (wi::lrshift (wi::to_wide (rhs), lbitsize) != 0) |
| 4691 | { |
| 4692 | warning (0, "comparison is always %d due to width of bit-field", |
| 4693 | code == NE_EXPR); |
| 4694 | return constant_boolean_node (code == NE_EXPR, compare_type); |
| 4695 | } |
| 4696 | } |
| 4697 | else |
| 4698 | { |
| 4699 | wide_int tem = wi::arshift (wi::to_wide (rhs), lbitsize - 1); |
| 4700 | if (tem != 0 && tem != -1) |
| 4701 | { |
| 4702 | warning (0, "comparison is always %d due to width of bit-field", |
| 4703 | code == NE_EXPR); |
| 4704 | return constant_boolean_node (code == NE_EXPR, compare_type); |
| 4705 | } |
| 4706 | } |
| 4707 | |
| 4708 | if (nbitpos < 0) |
| 4709 | return 0; |
| 4710 | |
| 4711 | /* Single-bit compares should always be against zero. */ |
| 4712 | if (lbitsize == 1 && ! integer_zerop (rhs)) |
| 4713 | { |
| 4714 | code = code == EQ_EXPR ? NE_EXPR : EQ_EXPR; |
| 4715 | rhs = build_int_cst (type, 0); |
| 4716 | } |
| 4717 | |
| 4718 | /* Make a new bitfield reference, shift the constant over the |
| 4719 | appropriate number of bits and mask it with the computed mask |
| 4720 | (in case this was a signed field). If we changed it, make a new one. */ |
| 4721 | lhs = make_bit_field_ref (loc, linner, lhs, unsigned_type, |
| 4722 | nbitsize, nbitpos, 1, lreversep); |
| 4723 | |
| 4724 | rhs = const_binop (BIT_AND_EXPR, |
| 4725 | const_binop (LSHIFT_EXPR, |
| 4726 | fold_convert_loc (loc, unsigned_type, rhs), |
| 4727 | size_int (lbitpos)size_int_kind (lbitpos, stk_sizetype)), |
| 4728 | mask); |
| 4729 | |
| 4730 | lhs = build2_loc (loc, code, compare_type, |
| 4731 | build2 (BIT_AND_EXPR, unsigned_type, lhs, mask), rhs); |
| 4732 | return lhs; |
| 4733 | } |
| 4734 | |
| 4735 | /* Subroutine for fold_truth_andor_1: decode a field reference. |
| 4736 | |
| 4737 | If EXP is a comparison reference, we return the innermost reference. |
| 4738 | |
| 4739 | *PBITSIZE is set to the number of bits in the reference, *PBITPOS is |
| 4740 | set to the starting bit number. |
| 4741 | |
| 4742 | If the innermost field can be completely contained in a mode-sized |
| 4743 | unit, *PMODE is set to that mode. Otherwise, it is set to VOIDmode. |
| 4744 | |
| 4745 | *PVOLATILEP is set to 1 if the any expression encountered is volatile; |
| 4746 | otherwise it is not changed. |
| 4747 | |
| 4748 | *PUNSIGNEDP is set to the signedness of the field. |
| 4749 | |
| 4750 | *PREVERSEP is set to the storage order of the field. |
| 4751 | |
| 4752 | *PMASK is set to the mask used. This is either contained in a |
| 4753 | BIT_AND_EXPR or derived from the width of the field. |
| 4754 | |
| 4755 | *PAND_MASK is set to the mask found in a BIT_AND_EXPR, if any. |
| 4756 | |
| 4757 | Return 0 if this is not a component reference or is one that we can't |
| 4758 | do anything with. */ |
| 4759 | |
| 4760 | static tree |
| 4761 | decode_field_reference (location_t loc, tree *exp_, HOST_WIDE_INTlong *pbitsize, |
| 4762 | HOST_WIDE_INTlong *pbitpos, machine_mode *pmode, |
| 4763 | int *punsignedp, int *preversep, int *pvolatilep, |
| 4764 | tree *pmask, tree *pand_mask) |
| 4765 | { |
| 4766 | tree exp = *exp_; |
| 4767 | tree outer_type = 0; |
| 4768 | tree and_mask = 0; |
| 4769 | tree mask, inner, offset; |
| 4770 | tree unsigned_type; |
| 4771 | unsigned int precision; |
| 4772 | |
| 4773 | /* All the optimizations using this function assume integer fields. |
| 4774 | There are problems with FP fields since the type_for_size call |
| 4775 | below can fail for, e.g., XFmode. */ |
| 4776 | if (! INTEGRAL_TYPE_P (TREE_TYPE (exp))(((enum tree_code) (((contains_struct_check ((exp), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4776, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((exp), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4776, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((exp), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4776, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE )) |
| 4777 | return NULL_TREE(tree) __null; |
| 4778 | |
| 4779 | /* We are interested in the bare arrangement of bits, so strip everything |
| 4780 | that doesn't affect the machine mode. However, record the type of the |
| 4781 | outermost expression if it may matter below. */ |
| 4782 | if (CONVERT_EXPR_P (exp)((((enum tree_code) (exp)->base.code)) == NOP_EXPR || (((enum tree_code) (exp)->base.code)) == CONVERT_EXPR) |
| 4783 | || TREE_CODE (exp)((enum tree_code) (exp)->base.code) == NON_LVALUE_EXPR) |
| 4784 | outer_type = TREE_TYPE (exp)((contains_struct_check ((exp), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4784, __FUNCTION__))->typed.type); |
| 4785 | STRIP_NOPS (exp)(exp) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((exp))))); |
| 4786 | |
| 4787 | if (TREE_CODE (exp)((enum tree_code) (exp)->base.code) == BIT_AND_EXPR) |
| 4788 | { |
| 4789 | and_mask = TREE_OPERAND (exp, 1)(*((const_cast<tree*> (tree_operand_check ((exp), (1), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4789, __FUNCTION__))))); |
| 4790 | exp = TREE_OPERAND (exp, 0)(*((const_cast<tree*> (tree_operand_check ((exp), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4790, __FUNCTION__))))); |
| 4791 | STRIP_NOPS (exp)(exp) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((exp))))); STRIP_NOPS (and_mask)(and_mask) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((and_mask))))); |
| 4792 | if (TREE_CODE (and_mask)((enum tree_code) (and_mask)->base.code) != INTEGER_CST) |
| 4793 | return NULL_TREE(tree) __null; |
| 4794 | } |
| 4795 | |
| 4796 | poly_int64 poly_bitsize, poly_bitpos; |
| 4797 | inner = get_inner_reference (exp, &poly_bitsize, &poly_bitpos, &offset, |
| 4798 | pmode, punsignedp, preversep, pvolatilep); |
| 4799 | if ((inner == exp && and_mask == 0) |
| 4800 | || !poly_bitsize.is_constant (pbitsize) |
| 4801 | || !poly_bitpos.is_constant (pbitpos) |
| 4802 | || *pbitsize < 0 |
| 4803 | || offset != 0 |
| 4804 | || TREE_CODE (inner)((enum tree_code) (inner)->base.code) == PLACEHOLDER_EXPR |
| 4805 | /* Reject out-of-bound accesses (PR79731). */ |
| 4806 | || (! AGGREGATE_TYPE_P (TREE_TYPE (inner))(((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4806, __FUNCTION__))->typed.type))->base.code) == ARRAY_TYPE || (((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4806, __FUNCTION__))->typed.type))->base.code) == RECORD_TYPE || ((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4806, __FUNCTION__))->typed.type))->base.code) == UNION_TYPE || ((enum tree_code) (((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4806, __FUNCTION__))->typed.type))->base.code) == QUAL_UNION_TYPE )) |
| 4807 | && compare_tree_int (TYPE_SIZE (TREE_TYPE (inner))((tree_class_check ((((contains_struct_check ((inner), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4807, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4807, __FUNCTION__))->type_common.size), |
| 4808 | *pbitpos + *pbitsize) < 0)) |
| 4809 | return NULL_TREE(tree) __null; |
| 4810 | |
| 4811 | unsigned_type = lang_hooks.types.type_for_size (*pbitsize, 1); |
| 4812 | if (unsigned_type == NULL_TREE(tree) __null) |
| 4813 | return NULL_TREE(tree) __null; |
| 4814 | |
| 4815 | *exp_ = exp; |
| 4816 | |
| 4817 | /* If the number of bits in the reference is the same as the bitsize of |
| 4818 | the outer type, then the outer type gives the signedness. Otherwise |
| 4819 | (in case of a small bitfield) the signedness is unchanged. */ |
| 4820 | if (outer_type && *pbitsize == TYPE_PRECISION (outer_type)((tree_class_check ((outer_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4820, __FUNCTION__))->type_common.precision)) |
| 4821 | *punsignedp = TYPE_UNSIGNED (outer_type)((tree_class_check ((outer_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4821, __FUNCTION__))->base.u.bits.unsigned_flag); |
| 4822 | |
| 4823 | /* Compute the mask to access the bitfield. */ |
| 4824 | precision = TYPE_PRECISION (unsigned_type)((tree_class_check ((unsigned_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4824, __FUNCTION__))->type_common.precision); |
| 4825 | |
| 4826 | mask = build_int_cst_type (unsigned_type, -1); |
| 4827 | |
| 4828 | mask = const_binop (LSHIFT_EXPR, mask, size_int (precision - *pbitsize)size_int_kind (precision - *pbitsize, stk_sizetype)); |
| 4829 | mask = const_binop (RSHIFT_EXPR, mask, size_int (precision - *pbitsize)size_int_kind (precision - *pbitsize, stk_sizetype)); |
| 4830 | |
| 4831 | /* Merge it with the mask we found in the BIT_AND_EXPR, if any. */ |
| 4832 | if (and_mask != 0) |
| 4833 | mask = fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type, |
| 4834 | fold_convert_loc (loc, unsigned_type, and_mask), mask); |
| 4835 | |
| 4836 | *pmask = mask; |
| 4837 | *pand_mask = and_mask; |
| 4838 | return inner; |
| 4839 | } |
| 4840 | |
| 4841 | /* Return nonzero if MASK represents a mask of SIZE ones in the low-order |
| 4842 | bit positions and MASK is SIGNED. */ |
| 4843 | |
| 4844 | static bool |
| 4845 | all_ones_mask_p (const_tree mask, unsigned int size) |
| 4846 | { |
| 4847 | tree type = TREE_TYPE (mask)((contains_struct_check ((mask), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4847, __FUNCTION__))->typed.type); |
| 4848 | unsigned int precision = TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4848, __FUNCTION__))->type_common.precision); |
| 4849 | |
| 4850 | /* If this function returns true when the type of the mask is |
| 4851 | UNSIGNED, then there will be errors. In particular see |
| 4852 | gcc.c-torture/execute/990326-1.c. There does not appear to be |
| 4853 | any documentation paper trail as to why this is so. But the pre |
| 4854 | wide-int worked with that restriction and it has been preserved |
| 4855 | here. */ |
| 4856 | if (size > precision || TYPE_SIGN (type)((signop) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4856, __FUNCTION__))->base.u.bits.unsigned_flag)) == UNSIGNED) |
| 4857 | return false; |
| 4858 | |
| 4859 | return wi::mask (size, false, precision) == wi::to_wide (mask); |
| 4860 | } |
| 4861 | |
| 4862 | /* Subroutine for fold: determine if VAL is the INTEGER_CONST that |
| 4863 | represents the sign bit of EXP's type. If EXP represents a sign |
| 4864 | or zero extension, also test VAL against the unextended type. |
| 4865 | The return value is the (sub)expression whose sign bit is VAL, |
| 4866 | or NULL_TREE otherwise. */ |
| 4867 | |
| 4868 | tree |
| 4869 | sign_bit_p (tree exp, const_tree val) |
| 4870 | { |
| 4871 | int width; |
| 4872 | tree t; |
| 4873 | |
| 4874 | /* Tree EXP must have an integral type. */ |
| 4875 | t = TREE_TYPE (exp)((contains_struct_check ((exp), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4875, __FUNCTION__))->typed.type); |
| 4876 | if (! INTEGRAL_TYPE_P (t)(((enum tree_code) (t)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (t)->base.code) == BOOLEAN_TYPE || ((enum tree_code ) (t)->base.code) == INTEGER_TYPE)) |
| 4877 | return NULL_TREE(tree) __null; |
| 4878 | |
| 4879 | /* Tree VAL must be an integer constant. */ |
| 4880 | if (TREE_CODE (val)((enum tree_code) (val)->base.code) != INTEGER_CST |
| 4881 | || TREE_OVERFLOW (val)((tree_class_check ((val), (tcc_constant), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4881, __FUNCTION__))->base.public_flag)) |
| 4882 | return NULL_TREE(tree) __null; |
| 4883 | |
| 4884 | width = TYPE_PRECISION (t)((tree_class_check ((t), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4884, __FUNCTION__))->type_common.precision); |
| 4885 | if (wi::only_sign_bit_p (wi::to_wide (val), width)) |
| 4886 | return exp; |
| 4887 | |
| 4888 | /* Handle extension from a narrower type. */ |
| 4889 | if (TREE_CODE (exp)((enum tree_code) (exp)->base.code) == NOP_EXPR |
| 4890 | && TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (exp, 0)))((tree_class_check ((((contains_struct_check (((*((const_cast <tree*> (tree_operand_check ((exp), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4890, __FUNCTION__)))))), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4890, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4890, __FUNCTION__))->type_common.precision) < width) |
| 4891 | return sign_bit_p (TREE_OPERAND (exp, 0)(*((const_cast<tree*> (tree_operand_check ((exp), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4891, __FUNCTION__))))), val); |
| 4892 | |
| 4893 | return NULL_TREE(tree) __null; |
| 4894 | } |
| 4895 | |
| 4896 | /* Subroutine for fold_truth_andor_1 and simple_condition_p: determine if an |
| 4897 | operand is simple enough to be evaluated unconditionally. */ |
| 4898 | |
| 4899 | static bool |
| 4900 | simple_operand_p (const_tree exp) |
| 4901 | { |
| 4902 | /* Strip any conversions that don't change the machine mode. */ |
| 4903 | STRIP_NOPS (exp)(exp) = tree_strip_nop_conversions ((const_cast<union tree_node *> (((exp))))); |
| 4904 | |
| 4905 | return (CONSTANT_CLASS_P (exp)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (exp)->base.code))] == tcc_constant) |
| 4906 | || TREE_CODE (exp)((enum tree_code) (exp)->base.code) == SSA_NAME |
| 4907 | || (DECL_P (exp)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (exp)->base.code))] == tcc_declaration) |
| 4908 | && ! TREE_ADDRESSABLE (exp)((exp)->base.addressable_flag) |
| 4909 | && ! TREE_THIS_VOLATILE (exp)((exp)->base.volatile_flag) |
| 4910 | && ! DECL_NONLOCAL (exp)((contains_struct_check ((exp), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4910, __FUNCTION__))->decl_common.nonlocal_flag) |
| 4911 | /* Don't regard global variables as simple. They may be |
| 4912 | allocated in ways unknown to the compiler (shared memory, |
| 4913 | #pragma weak, etc). */ |
| 4914 | && ! TREE_PUBLIC (exp)((exp)->base.public_flag) |
| 4915 | && ! DECL_EXTERNAL (exp)((contains_struct_check ((exp), (TS_DECL_COMMON), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4915, __FUNCTION__))->decl_common.decl_flag_1) |
| 4916 | /* Weakrefs are not safe to be read, since they can be NULL. |
| 4917 | They are !TREE_PUBLIC && !DECL_EXTERNAL but still |
| 4918 | have DECL_WEAK flag set. */ |
| 4919 | && (! VAR_OR_FUNCTION_DECL_P (exp)(((enum tree_code) (exp)->base.code) == VAR_DECL || ((enum tree_code) (exp)->base.code) == FUNCTION_DECL) || ! DECL_WEAK (exp)((contains_struct_check ((exp), (TS_DECL_WITH_VIS), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/fold-const.cc" , 4919, __FUNCTION__))->decl_with_vis.weak_flag)) |
| 4920 | /* Loading a static variable is unduly expensive, but global |
| 4921 | registers aren't expensive. */ | </