| File: | build/gcc/tree-vect-generic.cc |
| Warning: | line 1159, column 7 Called C++ object pointer is null |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* Lower vector operations to scalar operations. | ||||
| 2 | Copyright (C) 2004-2023 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 | ||||
| 7 | under the terms of the GNU General Public License as published by the | ||||
| 8 | Free Software Foundation; either version 3, or (at your option) any | ||||
| 9 | later version. | ||||
| 10 | |||||
| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT | ||||
| 12 | ANY 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 | #include "config.h" | ||||
| 21 | #include "system.h" | ||||
| 22 | #include "coretypes.h" | ||||
| 23 | #include "backend.h" | ||||
| 24 | #include "rtl.h" | ||||
| 25 | #include "tree.h" | ||||
| 26 | #include "gimple.h" | ||||
| 27 | #include "tree-pass.h" | ||||
| 28 | #include "ssa.h" | ||||
| 29 | #include "expmed.h" | ||||
| 30 | #include "optabs-tree.h" | ||||
| 31 | #include "diagnostic.h" | ||||
| 32 | #include "fold-const.h" | ||||
| 33 | #include "stor-layout.h" | ||||
| 34 | #include "langhooks.h" | ||||
| 35 | #include "tree-eh.h" | ||||
| 36 | #include "gimple-iterator.h" | ||||
| 37 | #include "gimplify-me.h" | ||||
| 38 | #include "gimplify.h" | ||||
| 39 | #include "tree-cfg.h" | ||||
| 40 | #include "tree-vector-builder.h" | ||||
| 41 | #include "vec-perm-indices.h" | ||||
| 42 | #include "insn-config.h" | ||||
| 43 | #include "tree-ssa-dce.h" | ||||
| 44 | #include "gimple-fold.h" | ||||
| 45 | #include "gimple-match.h" | ||||
| 46 | #include "recog.h" /* FIXME: for insn_data */ | ||||
| 47 | |||||
| 48 | |||||
| 49 | /* Build a ternary operation and gimplify it. Emit code before GSI. | ||||
| 50 | Return the gimple_val holding the result. */ | ||||
| 51 | |||||
| 52 | static tree | ||||
| 53 | gimplify_build3 (gimple_stmt_iterator *gsi, enum tree_code code, | ||||
| 54 | tree type, tree a, tree b, tree c) | ||||
| 55 | { | ||||
| 56 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 57 | return gimple_build (gsi, true, GSI_SAME_STMT, loc, code, type, a, b, c); | ||||
| 58 | } | ||||
| 59 | |||||
| 60 | /* Build a binary operation and gimplify it. Emit code before GSI. | ||||
| 61 | Return the gimple_val holding the result. */ | ||||
| 62 | |||||
| 63 | static tree | ||||
| 64 | gimplify_build2 (gimple_stmt_iterator *gsi, enum tree_code code, | ||||
| 65 | tree type, tree a, tree b) | ||||
| 66 | { | ||||
| 67 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 68 | return gimple_build (gsi, true, GSI_SAME_STMT, loc, code, type, a, b); | ||||
| 69 | } | ||||
| 70 | |||||
| 71 | /* Build a unary operation and gimplify it. Emit code before GSI. | ||||
| 72 | Return the gimple_val holding the result. */ | ||||
| 73 | |||||
| 74 | static tree | ||||
| 75 | gimplify_build1 (gimple_stmt_iterator *gsi, enum tree_code code, tree type, | ||||
| 76 | tree a) | ||||
| 77 | { | ||||
| 78 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 79 | return gimple_build (gsi, true, GSI_SAME_STMT, loc, code, type, a); | ||||
| 80 | } | ||||
| 81 | |||||
| 82 | |||||
| 83 | static void expand_vector_operations_1 (gimple_stmt_iterator *, bitmap); | ||||
| 84 | |||||
| 85 | /* Return the number of elements in a vector type TYPE that we have | ||||
| 86 | already decided needs to be expanded piecewise. We don't support | ||||
| 87 | this kind of expansion for variable-length vectors, since we should | ||||
| 88 | always check for target support before introducing uses of those. */ | ||||
| 89 | static unsigned int | ||||
| 90 | nunits_for_known_piecewise_op (const_tree type) | ||||
| 91 | { | ||||
| 92 | return TYPE_VECTOR_SUBPARTS (type).to_constant (); | ||||
| 93 | } | ||||
| 94 | |||||
| 95 | /* Return true if TYPE1 has more elements than TYPE2, where either | ||||
| 96 | type may be a vector or a scalar. */ | ||||
| 97 | |||||
| 98 | static inline bool | ||||
| 99 | subparts_gt (tree type1, tree type2) | ||||
| 100 | { | ||||
| 101 | poly_uint64 n1 = VECTOR_TYPE_P (type1)(((enum tree_code) (type1)->base.code) == VECTOR_TYPE) ? TYPE_VECTOR_SUBPARTS (type1) : 1; | ||||
| 102 | poly_uint64 n2 = VECTOR_TYPE_P (type2)(((enum tree_code) (type2)->base.code) == VECTOR_TYPE) ? TYPE_VECTOR_SUBPARTS (type2) : 1; | ||||
| 103 | return known_gt (n1, n2)(!maybe_le (n1, n2)); | ||||
| 104 | } | ||||
| 105 | |||||
| 106 | /* Build a constant of type TYPE, made of VALUE's bits replicated | ||||
| 107 | every WIDTH bits to fit TYPE's precision. */ | ||||
| 108 | static tree | ||||
| 109 | build_replicated_const (tree type, unsigned int width, HOST_WIDE_INTlong value) | ||||
| 110 | { | ||||
| 111 | int n = (TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 111, __FUNCTION__))->type_common.precision) + HOST_BITS_PER_WIDE_INT64 - 1) | ||||
| 112 | / HOST_BITS_PER_WIDE_INT64; | ||||
| 113 | unsigned HOST_WIDE_INTlong low, mask; | ||||
| 114 | HOST_WIDE_INTlong a[WIDE_INT_MAX_ELTS(((64*(8)) + 64) / 64)]; | ||||
| 115 | int i; | ||||
| 116 | |||||
| 117 | gcc_assert (n && n <= WIDE_INT_MAX_ELTS)((void)(!(n && n <= (((64*(8)) + 64) / 64)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 117, __FUNCTION__), 0 : 0)); | ||||
| 118 | |||||
| 119 | if (width == HOST_BITS_PER_WIDE_INT64) | ||||
| 120 | low = value; | ||||
| 121 | else | ||||
| 122 | { | ||||
| 123 | mask = ((HOST_WIDE_INTlong)1 << width) - 1; | ||||
| 124 | low = (unsigned HOST_WIDE_INTlong) ~0 / mask * (value & mask); | ||||
| 125 | } | ||||
| 126 | |||||
| 127 | for (i = 0; i < n; i++) | ||||
| 128 | a[i] = low; | ||||
| 129 | |||||
| 130 | gcc_assert (TYPE_PRECISION (type) <= MAX_BITSIZE_MODE_ANY_INT)((void)(!(((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 130, __FUNCTION__))->type_common.precision) <= (64*(8 ))) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 130, __FUNCTION__), 0 : 0)); | ||||
| 131 | return wide_int_to_tree | ||||
| 132 | (type, wide_int::from_array (a, n, TYPE_PRECISION (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 132, __FUNCTION__))->type_common.precision))); | ||||
| 133 | } | ||||
| 134 | |||||
| 135 | static GTY(()) tree vector_inner_type; | ||||
| 136 | static GTY(()) tree vector_last_type; | ||||
| 137 | static GTY(()) int vector_last_nunits; | ||||
| 138 | |||||
| 139 | /* Return a suitable vector types made of SUBPARTS units each of mode | ||||
| 140 | "word_mode" (the global variable). */ | ||||
| 141 | static tree | ||||
| 142 | build_word_mode_vector_type (int nunits) | ||||
| 143 | { | ||||
| 144 | if (!vector_inner_type) | ||||
| 145 | vector_inner_type = lang_hooks.types.type_for_mode (word_mode, 1); | ||||
| 146 | else if (vector_last_nunits == nunits) | ||||
| 147 | { | ||||
| 148 | gcc_assert (TREE_CODE (vector_last_type) == VECTOR_TYPE)((void)(!(((enum tree_code) (vector_last_type)->base.code) == VECTOR_TYPE) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 148, __FUNCTION__), 0 : 0)); | ||||
| 149 | return vector_last_type; | ||||
| 150 | } | ||||
| 151 | |||||
| 152 | vector_last_nunits = nunits; | ||||
| 153 | vector_last_type = build_vector_type (vector_inner_type, nunits); | ||||
| 154 | return vector_last_type; | ||||
| 155 | } | ||||
| 156 | |||||
| 157 | typedef tree (*elem_op_func) (gimple_stmt_iterator *, | ||||
| 158 | tree, tree, tree, tree, tree, enum tree_code, | ||||
| 159 | tree); | ||||
| 160 | |||||
| 161 | /* Extract the vector element of type TYPE at BITPOS with BITSIZE from T | ||||
| 162 | and return it. */ | ||||
| 163 | |||||
| 164 | tree | ||||
| 165 | tree_vec_extract (gimple_stmt_iterator *gsi, tree type, | ||||
| 166 | tree t, tree bitsize, tree bitpos) | ||||
| 167 | { | ||||
| 168 | /* We're using the resimplify API and maybe_push_res_to_seq to | ||||
| 169 | simplify the BIT_FIELD_REF but restrict the simplification to | ||||
| 170 | a single stmt while at the same time following SSA edges for | ||||
| 171 | simplification with already emitted CTORs. */ | ||||
| 172 | gimple_match_op opr; | ||||
| 173 | opr.set_op (BIT_FIELD_REF, type, t, bitsize, bitpos); | ||||
| 174 | opr.resimplify (NULLnullptr, follow_all_ssa_edges); | ||||
| 175 | gimple_seq stmts = NULLnullptr; | ||||
| 176 | tree res = maybe_push_res_to_seq (&opr, &stmts); | ||||
| 177 | gcc_assert (res)((void)(!(res) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 177, __FUNCTION__), 0 : 0)); | ||||
| 178 | gsi_insert_seq_before (gsi, stmts, GSI_SAME_STMT); | ||||
| 179 | return res; | ||||
| 180 | } | ||||
| 181 | |||||
| 182 | static tree | ||||
| 183 | do_unop (gimple_stmt_iterator *gsi, tree inner_type, tree a, | ||||
| 184 | tree b ATTRIBUTE_UNUSED__attribute__ ((__unused__)), tree bitpos, tree bitsize, | ||||
| 185 | enum tree_code code, tree type ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | ||||
| 186 | { | ||||
| 187 | a = tree_vec_extract (gsi, inner_type, a, bitsize, bitpos); | ||||
| 188 | return gimplify_build1 (gsi, code, inner_type, a); | ||||
| 189 | } | ||||
| 190 | |||||
| 191 | static tree | ||||
| 192 | do_binop (gimple_stmt_iterator *gsi, tree inner_type, tree a, tree b, | ||||
| 193 | tree bitpos, tree bitsize, enum tree_code code, | ||||
| 194 | tree type ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | ||||
| 195 | { | ||||
| 196 | if (TREE_CODE (TREE_TYPE (a))((enum tree_code) (((contains_struct_check ((a), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 196, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE) | ||||
| 197 | a = tree_vec_extract (gsi, inner_type, a, bitsize, bitpos); | ||||
| 198 | if (TREE_CODE (TREE_TYPE (b))((enum tree_code) (((contains_struct_check ((b), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 198, __FUNCTION__))->typed.type))->base.code) == VECTOR_TYPE) | ||||
| 199 | b = tree_vec_extract (gsi, inner_type, b, bitsize, bitpos); | ||||
| 200 | return gimplify_build2 (gsi, code, inner_type, a, b); | ||||
| 201 | } | ||||
| 202 | |||||
| 203 | /* Construct expression (A[BITPOS] code B[BITPOS]) ? -1 : 0 | ||||
| 204 | |||||
| 205 | INNER_TYPE is the type of A and B elements | ||||
| 206 | |||||
| 207 | returned expression is of signed integer type with the | ||||
| 208 | size equal to the size of INNER_TYPE. */ | ||||
| 209 | static tree | ||||
| 210 | do_compare (gimple_stmt_iterator *gsi, tree inner_type, tree a, tree b, | ||||
| 211 | tree bitpos, tree bitsize, enum tree_code code, tree type) | ||||
| 212 | { | ||||
| 213 | tree stype = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 213, __FUNCTION__))->typed.type); | ||||
| 214 | tree cst_false = build_zero_cst (stype); | ||||
| 215 | tree cst_true = build_all_ones_cst (stype); | ||||
| 216 | tree cmp; | ||||
| 217 | |||||
| 218 | a = tree_vec_extract (gsi, inner_type, a, bitsize, bitpos); | ||||
| 219 | b = tree_vec_extract (gsi, inner_type, b, bitsize, bitpos); | ||||
| 220 | |||||
| 221 | cmp = build2 (code, boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE], a, b); | ||||
| 222 | return gimplify_build3 (gsi, COND_EXPR, stype, cmp, cst_true, cst_false); | ||||
| 223 | } | ||||
| 224 | |||||
| 225 | /* Expand vector addition to scalars. This does bit twiddling | ||||
| 226 | in order to increase parallelism: | ||||
| 227 | |||||
| 228 | a + b = (((int) a & 0x7f7f7f7f) + ((int) b & 0x7f7f7f7f)) ^ | ||||
| 229 | (a ^ b) & 0x80808080 | ||||
| 230 | |||||
| 231 | a - b = (((int) a | 0x80808080) - ((int) b & 0x7f7f7f7f)) ^ | ||||
| 232 | (a ^ ~b) & 0x80808080 | ||||
| 233 | |||||
| 234 | -b = (0x80808080 - ((int) b & 0x7f7f7f7f)) ^ (~b & 0x80808080) | ||||
| 235 | |||||
| 236 | This optimization should be done only if 4 vector items or more | ||||
| 237 | fit into a word. */ | ||||
| 238 | static tree | ||||
| 239 | do_plus_minus (gimple_stmt_iterator *gsi, tree word_type, tree a, tree b, | ||||
| 240 | tree bitpos ATTRIBUTE_UNUSED__attribute__ ((__unused__)), tree bitsize ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | ||||
| 241 | enum tree_code code, tree type ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | ||||
| 242 | { | ||||
| 243 | unsigned int width = vector_element_bits (TREE_TYPE (a)((contains_struct_check ((a), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 243, __FUNCTION__))->typed.type)); | ||||
| 244 | tree inner_type = TREE_TYPE (TREE_TYPE (a))((contains_struct_check ((((contains_struct_check ((a), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 244, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 244, __FUNCTION__))->typed.type); | ||||
| 245 | unsigned HOST_WIDE_INTlong max; | ||||
| 246 | tree low_bits, high_bits, a_low, b_low, result_low, signs; | ||||
| 247 | |||||
| 248 | max = GET_MODE_MASK (TYPE_MODE (inner_type))mode_mask_array[((((enum tree_code) ((tree_class_check ((inner_type ), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 248, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (inner_type) : (inner_type)->type_common.mode)]; | ||||
| 249 | low_bits = build_replicated_const (word_type, width, max >> 1); | ||||
| 250 | high_bits = build_replicated_const (word_type, width, max & ~(max >> 1)); | ||||
| 251 | |||||
| 252 | a = tree_vec_extract (gsi, word_type, a, bitsize, bitpos); | ||||
| 253 | b = tree_vec_extract (gsi, word_type, b, bitsize, bitpos); | ||||
| 254 | |||||
| 255 | signs = gimplify_build2 (gsi, BIT_XOR_EXPR, word_type, a, b); | ||||
| 256 | b_low = gimplify_build2 (gsi, BIT_AND_EXPR, word_type, b, low_bits); | ||||
| 257 | if (code == PLUS_EXPR) | ||||
| 258 | a_low = gimplify_build2 (gsi, BIT_AND_EXPR, word_type, a, low_bits); | ||||
| 259 | else | ||||
| 260 | { | ||||
| 261 | a_low = gimplify_build2 (gsi, BIT_IOR_EXPR, word_type, a, high_bits); | ||||
| 262 | signs = gimplify_build1 (gsi, BIT_NOT_EXPR, word_type, signs); | ||||
| 263 | } | ||||
| 264 | |||||
| 265 | signs = gimplify_build2 (gsi, BIT_AND_EXPR, word_type, signs, high_bits); | ||||
| 266 | result_low = gimplify_build2 (gsi, code, word_type, a_low, b_low); | ||||
| 267 | return gimplify_build2 (gsi, BIT_XOR_EXPR, word_type, result_low, signs); | ||||
| 268 | } | ||||
| 269 | |||||
| 270 | static tree | ||||
| 271 | do_negate (gimple_stmt_iterator *gsi, tree word_type, tree b, | ||||
| 272 | tree unused ATTRIBUTE_UNUSED__attribute__ ((__unused__)), tree bitpos ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | ||||
| 273 | tree bitsize ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | ||||
| 274 | enum tree_code code ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | ||||
| 275 | tree type ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | ||||
| 276 | { | ||||
| 277 | unsigned int width = vector_element_bits (TREE_TYPE (b)((contains_struct_check ((b), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 277, __FUNCTION__))->typed.type)); | ||||
| 278 | tree inner_type = TREE_TYPE (TREE_TYPE (b))((contains_struct_check ((((contains_struct_check ((b), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 278, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 278, __FUNCTION__))->typed.type); | ||||
| 279 | HOST_WIDE_INTlong max; | ||||
| 280 | tree low_bits, high_bits, b_low, result_low, signs; | ||||
| 281 | |||||
| 282 | max = GET_MODE_MASK (TYPE_MODE (inner_type))mode_mask_array[((((enum tree_code) ((tree_class_check ((inner_type ), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 282, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (inner_type) : (inner_type)->type_common.mode)]; | ||||
| 283 | low_bits = build_replicated_const (word_type, width, max >> 1); | ||||
| 284 | high_bits = build_replicated_const (word_type, width, max & ~(max >> 1)); | ||||
| 285 | |||||
| 286 | b = tree_vec_extract (gsi, word_type, b, bitsize, bitpos); | ||||
| 287 | |||||
| 288 | b_low = gimplify_build2 (gsi, BIT_AND_EXPR, word_type, b, low_bits); | ||||
| 289 | signs = gimplify_build1 (gsi, BIT_NOT_EXPR, word_type, b); | ||||
| 290 | signs = gimplify_build2 (gsi, BIT_AND_EXPR, word_type, signs, high_bits); | ||||
| 291 | result_low = gimplify_build2 (gsi, MINUS_EXPR, word_type, high_bits, b_low); | ||||
| 292 | return gimplify_build2 (gsi, BIT_XOR_EXPR, word_type, result_low, signs); | ||||
| 293 | } | ||||
| 294 | |||||
| 295 | /* Expand a vector operation to scalars, by using many operations | ||||
| 296 | whose type is the vector type's inner type. */ | ||||
| 297 | static tree | ||||
| 298 | expand_vector_piecewise (gimple_stmt_iterator *gsi, elem_op_func f, | ||||
| 299 | tree type, tree inner_type, | ||||
| 300 | tree a, tree b, enum tree_code code, | ||||
| 301 | bool parallel_p, tree ret_type = NULL_TREE(tree) nullptr) | ||||
| 302 | { | ||||
| 303 | vec<constructor_elt, va_gc> *v; | ||||
| 304 | tree part_width = TYPE_SIZE (inner_type)((tree_class_check ((inner_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 304, __FUNCTION__))->type_common.size); | ||||
| 305 | tree index = bitsize_int (0)size_int_kind (0, stk_bitsizetype); | ||||
| 306 | int nunits = nunits_for_known_piecewise_op (type); | ||||
| 307 | int delta = tree_to_uhwi (part_width) / vector_element_bits (type); | ||||
| 308 | int i; | ||||
| 309 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 310 | |||||
| 311 | if (nunits == 1 | ||||
| 312 | || warning_suppressed_p (gsi_stmt (*gsi), | ||||
| 313 | OPT_Wvector_operation_performance)) | ||||
| 314 | /* Do not diagnose decomposing single element vectors or when | ||||
| 315 | decomposing vectorizer produced operations. */ | ||||
| 316 | ; | ||||
| 317 | else if (ret_type || !parallel_p) | ||||
| 318 | warning_at (loc, OPT_Wvector_operation_performance, | ||||
| 319 | "vector operation will be expanded piecewise"); | ||||
| 320 | else | ||||
| 321 | warning_at (loc, OPT_Wvector_operation_performance, | ||||
| 322 | "vector operation will be expanded in parallel"); | ||||
| 323 | |||||
| 324 | if (!ret_type) | ||||
| 325 | ret_type = type; | ||||
| 326 | vec_alloc (v, (nunits + delta - 1) / delta); | ||||
| 327 | bool constant_p = true; | ||||
| 328 | for (i = 0; i < nunits; | ||||
| 329 | i += delta, index = int_const_binop (PLUS_EXPR, index, part_width)) | ||||
| 330 | { | ||||
| 331 | tree result = f (gsi, inner_type, a, b, index, part_width, code, | ||||
| 332 | ret_type); | ||||
| 333 | if (!CONSTANT_CLASS_P (result)(tree_code_type_tmpl <0>::tree_code_type[(int) (((enum tree_code ) (result)->base.code))] == tcc_constant)) | ||||
| 334 | constant_p = false; | ||||
| 335 | constructor_elt ce = {NULL_TREE(tree) nullptr, result}; | ||||
| 336 | v->quick_push (ce); | ||||
| 337 | } | ||||
| 338 | |||||
| 339 | if (constant_p) | ||||
| 340 | return build_vector_from_ctor (ret_type, v); | ||||
| 341 | else | ||||
| 342 | return build_constructor (ret_type, v); | ||||
| 343 | } | ||||
| 344 | |||||
| 345 | /* Expand a vector operation to scalars with the freedom to use | ||||
| 346 | a scalar integer type, or to use a different size for the items | ||||
| 347 | in the vector type. */ | ||||
| 348 | static tree | ||||
| 349 | expand_vector_parallel (gimple_stmt_iterator *gsi, elem_op_func f, tree type, | ||||
| 350 | tree a, tree b, enum tree_code code) | ||||
| 351 | { | ||||
| 352 | tree result, compute_type; | ||||
| 353 | int n_words = tree_to_uhwi (TYPE_SIZE_UNIT (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 353, __FUNCTION__))->type_common.size_unit)) / UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4); | ||||
| 354 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 355 | |||||
| 356 | /* We have three strategies. If the type is already correct, just do | ||||
| 357 | the operation an element at a time. Else, if the vector is wider than | ||||
| 358 | one word, do it a word at a time; finally, if the vector is smaller | ||||
| 359 | than one word, do it as a scalar. */ | ||||
| 360 | if (TYPE_MODE (TREE_TYPE (type))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 360, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 360, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 360, __FUNCTION__))->typed.type)) : (((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 360, __FUNCTION__))->typed.type))->type_common.mode) == word_mode) | ||||
| 361 | return expand_vector_piecewise (gsi, f, | ||||
| 362 | type, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 362, __FUNCTION__))->typed.type), | ||||
| 363 | a, b, code, true); | ||||
| 364 | else if (n_words > 1) | ||||
| 365 | { | ||||
| 366 | tree word_type = build_word_mode_vector_type (n_words); | ||||
| 367 | result = expand_vector_piecewise (gsi, f, | ||||
| 368 | word_type, TREE_TYPE (word_type)((contains_struct_check ((word_type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 368, __FUNCTION__))->typed.type), | ||||
| 369 | a, b, code, true); | ||||
| 370 | result = force_gimple_operand_gsi (gsi, result, true, NULLnullptr, true, | ||||
| 371 | GSI_SAME_STMT); | ||||
| 372 | } | ||||
| 373 | else | ||||
| 374 | { | ||||
| 375 | /* Use a single scalar operation with a mode no wider than word_mode. */ | ||||
| 376 | if (!warning_suppressed_p (gsi_stmt (*gsi), | ||||
| 377 | OPT_Wvector_operation_performance)) | ||||
| 378 | warning_at (loc, OPT_Wvector_operation_performance, | ||||
| 379 | "vector operation will be expanded with a " | ||||
| 380 | "single scalar operation"); | ||||
| 381 | scalar_int_mode mode | ||||
| 382 | = int_mode_for_size (tree_to_uhwi (TYPE_SIZE (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 382, __FUNCTION__))->type_common.size)), 0).require (); | ||||
| 383 | compute_type = lang_hooks.types.type_for_mode (mode, 1); | ||||
| 384 | result = f (gsi, compute_type, a, b, bitsize_zero_nodeglobal_trees[TI_BITSIZE_ZERO], | ||||
| 385 | TYPE_SIZE (compute_type)((tree_class_check ((compute_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 385, __FUNCTION__))->type_common.size), code, type); | ||||
| 386 | } | ||||
| 387 | |||||
| 388 | return result; | ||||
| 389 | } | ||||
| 390 | |||||
| 391 | /* Expand a vector operation to scalars; for integer types we can use | ||||
| 392 | special bit twiddling tricks to do the sums a word at a time, using | ||||
| 393 | function F_PARALLEL instead of F. These tricks are done only if | ||||
| 394 | they can process at least four items, that is, only if the vector | ||||
| 395 | holds at least four items and if a word can hold four items. */ | ||||
| 396 | static tree | ||||
| 397 | expand_vector_addition (gimple_stmt_iterator *gsi, | ||||
| 398 | elem_op_func f, elem_op_func f_parallel, | ||||
| 399 | tree type, tree a, tree b, enum tree_code code) | ||||
| 400 | { | ||||
| 401 | int parts_per_word = BITS_PER_WORD((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)) / vector_element_bits (type); | ||||
| 402 | |||||
| 403 | if (INTEGRAL_TYPE_P (TREE_TYPE (type))(((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 403, __FUNCTION__))->typed.type))->base.code) == ENUMERAL_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 403, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE || ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 403, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) | ||||
| 404 | && parts_per_word >= 4 | ||||
| 405 | && nunits_for_known_piecewise_op (type) >= 4) | ||||
| 406 | return expand_vector_parallel (gsi, f_parallel, | ||||
| 407 | type, a, b, code); | ||||
| 408 | else | ||||
| 409 | return expand_vector_piecewise (gsi, f, | ||||
| 410 | type, TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 410, __FUNCTION__))->typed.type), | ||||
| 411 | a, b, code, false); | ||||
| 412 | } | ||||
| 413 | |||||
| 414 | static bool | ||||
| 415 | expand_vector_condition (gimple_stmt_iterator *gsi, bitmap dce_ssa_names); | ||||
| 416 | |||||
| 417 | /* Try to expand vector comparison expression OP0 CODE OP1 by | ||||
| 418 | querying optab if the following expression: | ||||
| 419 | VEC_COND_EXPR< OP0 CODE OP1, {-1,...}, {0,...}> | ||||
| 420 | can be expanded. */ | ||||
| 421 | static tree | ||||
| 422 | expand_vector_comparison (gimple_stmt_iterator *gsi, tree type, tree op0, | ||||
| 423 | tree op1, enum tree_code code, | ||||
| 424 | bitmap dce_ssa_names) | ||||
| 425 | { | ||||
| 426 | tree lhs = gimple_assign_lhs (gsi_stmt (*gsi)); | ||||
| 427 | use_operand_p use_p; | ||||
| 428 | imm_use_iterator iterator; | ||||
| 429 | bool vec_cond_expr_only = true; | ||||
| 430 | |||||
| 431 | /* As seen in PR95830, we should not expand comparisons that are only | ||||
| 432 | feeding a VEC_COND_EXPR statement. */ | ||||
| 433 | auto_vec<gimple *> uses; | ||||
| 434 | FOR_EACH_IMM_USE_FAST (use_p, iterator, lhs)for ((use_p) = first_readonly_imm_use (&(iterator), (lhs) ); !end_readonly_imm_use_p (&(iterator)); (void) ((use_p) = next_readonly_imm_use (&(iterator)))) | ||||
| 435 | { | ||||
| 436 | gimple *use = USE_STMT (use_p)(use_p)->loc.stmt; | ||||
| 437 | if (is_gimple_debug (use)) | ||||
| 438 | continue; | ||||
| 439 | if (is_gimple_assign (use) | ||||
| 440 | && gimple_assign_rhs_code (use) == VEC_COND_EXPR | ||||
| 441 | && gimple_assign_rhs1 (use) == lhs | ||||
| 442 | && gimple_assign_rhs2 (use) != lhs | ||||
| 443 | && gimple_assign_rhs3 (use) != lhs) | ||||
| 444 | uses.safe_push (use); | ||||
| 445 | else | ||||
| 446 | vec_cond_expr_only = false; | ||||
| 447 | } | ||||
| 448 | |||||
| 449 | if (vec_cond_expr_only
| ||||
| 450 | for (gimple *use : uses) | ||||
| 451 | { | ||||
| 452 | gimple_stmt_iterator it = gsi_for_stmt (use); | ||||
| 453 | if (!expand_vector_condition (&it, dce_ssa_names)) | ||||
| 454 | { | ||||
| 455 | vec_cond_expr_only = false; | ||||
| 456 | break; | ||||
| 457 | } | ||||
| 458 | } | ||||
| 459 | |||||
| 460 | if (!uses.is_empty () && vec_cond_expr_only) | ||||
| 461 | return NULL_TREE(tree) nullptr; | ||||
| 462 | |||||
| 463 | tree t; | ||||
| 464 | if (!expand_vec_cmp_expr_p (TREE_TYPE (op0)((contains_struct_check ((op0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 464, __FUNCTION__))->typed.type), type, code)) | ||||
| 465 | { | ||||
| 466 | if (VECTOR_BOOLEAN_TYPE_P (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/tree-vect-generic.cc" , 466, __FUNCTION__))->typed.type))->base.code) == BOOLEAN_TYPE ) | ||||
| 467 | && SCALAR_INT_MODE_P (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/tree-vect-generic.cc" , 467, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_INT || ((enum mode_class) mode_class[((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 467, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)]) == MODE_PARTIAL_INT) | ||||
| 468 | && known_lt (GET_MODE_BITSIZE (TYPE_MODE (type)),(!maybe_le (TYPE_VECTOR_SUBPARTS (type) * GET_MODE_BITSIZE (( as_a <scalar_mode> ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->type_common.mode))), GET_MODE_BITSIZE (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 468, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)))) | ||||
| 469 | TYPE_VECTOR_SUBPARTS (type)(!maybe_le (TYPE_VECTOR_SUBPARTS (type) * GET_MODE_BITSIZE (( as_a <scalar_mode> ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->type_common.mode))), GET_MODE_BITSIZE (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 468, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)))) | ||||
| 470 | * GET_MODE_BITSIZE (SCALAR_TYPE_MODE(!maybe_le (TYPE_VECTOR_SUBPARTS (type) * GET_MODE_BITSIZE (( as_a <scalar_mode> ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->type_common.mode))), GET_MODE_BITSIZE (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 468, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)))) | ||||
| 471 | (TREE_TYPE (type))))(!maybe_le (TYPE_VECTOR_SUBPARTS (type) * GET_MODE_BITSIZE (( as_a <scalar_mode> ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 471, __FUNCTION__))->type_common.mode))), GET_MODE_BITSIZE (((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 468, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode))))) | ||||
| 472 | { | ||||
| 473 | tree inner_type = TREE_TYPE (TREE_TYPE (op0))((contains_struct_check ((((contains_struct_check ((op0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 473, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 473, __FUNCTION__))->typed.type); | ||||
| 474 | tree part_width = vector_element_bits_tree (TREE_TYPE (op0)((contains_struct_check ((op0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 474, __FUNCTION__))->typed.type)); | ||||
| 475 | tree index = bitsize_int (0)size_int_kind (0, stk_bitsizetype); | ||||
| 476 | int nunits = nunits_for_known_piecewise_op (TREE_TYPE (op0)((contains_struct_check ((op0), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 476, __FUNCTION__))->typed.type)); | ||||
| 477 | int prec = GET_MODE_PRECISION (SCALAR_TYPE_MODE (type)(as_a <scalar_mode> ((tree_class_check ((type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 477, __FUNCTION__))->type_common.mode))); | ||||
| 478 | tree ret_type = build_nonstandard_integer_type (prec, 1); | ||||
| 479 | tree ret_inner_type = boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE]; | ||||
| 480 | int i; | ||||
| 481 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 482 | t = build_zero_cst (ret_type); | ||||
| 483 | |||||
| 484 | if (TYPE_PRECISION (ret_inner_type)((tree_class_check ((ret_inner_type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 484, __FUNCTION__))->type_common.precision) != 1) | ||||
| 485 | ret_inner_type = build_nonstandard_integer_type (1, 1); | ||||
| 486 | if (!warning_suppressed_p (gsi_stmt (*gsi), | ||||
| 487 | OPT_Wvector_operation_performance)) | ||||
| 488 | warning_at (loc, OPT_Wvector_operation_performance, | ||||
| 489 | "vector operation will be expanded piecewise"); | ||||
| 490 | for (i = 0; i < nunits; | ||||
| 491 | i++, index = int_const_binop (PLUS_EXPR, index, part_width)) | ||||
| 492 | { | ||||
| 493 | tree a = tree_vec_extract (gsi, inner_type, op0, part_width, | ||||
| 494 | index); | ||||
| 495 | tree b = tree_vec_extract (gsi, inner_type, op1, part_width, | ||||
| 496 | index); | ||||
| 497 | tree result = gimplify_build2 (gsi, code, ret_inner_type, a, b); | ||||
| 498 | t = gimplify_build3 (gsi, BIT_INSERT_EXPR, ret_type, t, result, | ||||
| 499 | bitsize_int (i)size_int_kind (i, stk_bitsizetype)); | ||||
| 500 | } | ||||
| 501 | t = gimplify_build1 (gsi, VIEW_CONVERT_EXPR, type, t); | ||||
| 502 | } | ||||
| 503 | else | ||||
| 504 | t = expand_vector_piecewise (gsi, do_compare, type, | ||||
| 505 | TREE_TYPE (TREE_TYPE (op0))((contains_struct_check ((((contains_struct_check ((op0), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 505, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 505, __FUNCTION__))->typed.type), op0, op1, | ||||
| 506 | code, false); | ||||
| 507 | } | ||||
| 508 | else | ||||
| 509 | t = NULL_TREE(tree) nullptr; | ||||
| 510 | |||||
| 511 | return t; | ||||
| 512 | } | ||||
| 513 | |||||
| 514 | /* Helper function of expand_vector_divmod. Gimplify a RSHIFT_EXPR in type | ||||
| 515 | of OP0 with shift counts in SHIFTCNTS array and return the temporary holding | ||||
| 516 | the result if successful, otherwise return NULL_TREE. */ | ||||
| 517 | static tree | ||||
| 518 | add_rshift (gimple_stmt_iterator *gsi, tree type, tree op0, int *shiftcnts) | ||||
| 519 | { | ||||
| 520 | optab op; | ||||
| 521 | unsigned int i, nunits = nunits_for_known_piecewise_op (type); | ||||
| 522 | bool scalar_shift = true; | ||||
| 523 | |||||
| 524 | for (i = 1; i < nunits; i++) | ||||
| 525 | { | ||||
| 526 | if (shiftcnts[i] != shiftcnts[0]) | ||||
| 527 | scalar_shift = false; | ||||
| 528 | } | ||||
| 529 | |||||
| 530 | if (scalar_shift && shiftcnts[0] == 0) | ||||
| 531 | return op0; | ||||
| 532 | |||||
| 533 | if (scalar_shift) | ||||
| 534 | { | ||||
| 535 | op = optab_for_tree_code (RSHIFT_EXPR, type, optab_scalar); | ||||
| 536 | if (op != unknown_optab | ||||
| 537 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 537, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) != CODE_FOR_nothing) | ||||
| 538 | return gimplify_build2 (gsi, RSHIFT_EXPR, type, op0, | ||||
| 539 | build_int_cst (NULL_TREE(tree) nullptr, shiftcnts[0])); | ||||
| 540 | } | ||||
| 541 | |||||
| 542 | op = optab_for_tree_code (RSHIFT_EXPR, type, optab_vector); | ||||
| 543 | if (op != unknown_optab | ||||
| 544 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 544, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) != CODE_FOR_nothing) | ||||
| 545 | { | ||||
| 546 | tree_vector_builder vec (type, nunits, 1); | ||||
| 547 | for (i = 0; i < nunits; i++) | ||||
| 548 | vec.quick_push (build_int_cst (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 548, __FUNCTION__))->typed.type), shiftcnts[i])); | ||||
| 549 | return gimplify_build2 (gsi, RSHIFT_EXPR, type, op0, vec.build ()); | ||||
| 550 | } | ||||
| 551 | |||||
| 552 | return NULL_TREE(tree) nullptr; | ||||
| 553 | } | ||||
| 554 | |||||
| 555 | /* Try to expand integer vector division by constant using | ||||
| 556 | widening multiply, shifts and additions. */ | ||||
| 557 | static tree | ||||
| 558 | expand_vector_divmod (gimple_stmt_iterator *gsi, tree type, tree op0, | ||||
| 559 | tree op1, enum tree_code code) | ||||
| 560 | { | ||||
| 561 | bool use_pow2 = true; | ||||
| 562 | bool has_vector_shift = true; | ||||
| 563 | bool use_abs_op1 = false; | ||||
| 564 | int mode = -1, this_mode; | ||||
| 565 | int pre_shift = -1, post_shift; | ||||
| 566 | unsigned int nunits = nunits_for_known_piecewise_op (type); | ||||
| 567 | int *shifts = XALLOCAVEC (int, nunits * 4)((int *) __builtin_alloca(sizeof (int) * (nunits * 4))); | ||||
| 568 | int *pre_shifts = shifts + nunits; | ||||
| 569 | int *post_shifts = pre_shifts + nunits; | ||||
| 570 | int *shift_temps = post_shifts + nunits; | ||||
| 571 | unsigned HOST_WIDE_INTlong *mulc = XALLOCAVEC (unsigned HOST_WIDE_INT, nunits)((unsigned long *) __builtin_alloca(sizeof (unsigned long) * ( nunits))); | ||||
| 572 | int prec = TYPE_PRECISION (TREE_TYPE (type))((tree_class_check ((((contains_struct_check ((type), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 572, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 572, __FUNCTION__))->type_common.precision); | ||||
| 573 | int dummy_int; | ||||
| 574 | unsigned int i; | ||||
| 575 | signop sign_p = TYPE_SIGN (TREE_TYPE (type))((signop) ((tree_class_check ((((contains_struct_check ((type ), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 575, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 575, __FUNCTION__))->base.u.bits.unsigned_flag)); | ||||
| 576 | unsigned HOST_WIDE_INTlong mask = GET_MODE_MASK (TYPE_MODE (TREE_TYPE (type)))mode_mask_array[((((enum tree_code) ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 576, __FUNCTION__))->typed.type)), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 576, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 576, __FUNCTION__))->typed.type)) : (((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 576, __FUNCTION__))->typed.type))->type_common.mode)]; | ||||
| 577 | tree cur_op, mulcst, tem; | ||||
| 578 | optab op; | ||||
| 579 | |||||
| 580 | if (prec > HOST_BITS_PER_WIDE_INT64) | ||||
| 581 | return NULL_TREE(tree) nullptr; | ||||
| 582 | |||||
| 583 | op = optab_for_tree_code (RSHIFT_EXPR, type, optab_vector); | ||||
| 584 | if (op == unknown_optab | ||||
| 585 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 585, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 586 | has_vector_shift = false; | ||||
| 587 | |||||
| 588 | /* Analysis phase. Determine if all op1 elements are either power | ||||
| 589 | of two and it is possible to expand it using shifts (or for remainder | ||||
| 590 | using masking). Additionally compute the multiplicative constants | ||||
| 591 | and pre and post shifts if the division is to be expanded using | ||||
| 592 | widening or high part multiplication plus shifts. */ | ||||
| 593 | for (i = 0; i < nunits; i++) | ||||
| 594 | { | ||||
| 595 | tree cst = VECTOR_CST_ELT (op1, i)vector_cst_elt (op1, i); | ||||
| 596 | unsigned HOST_WIDE_INTlong ml; | ||||
| 597 | |||||
| 598 | if (TREE_CODE (cst)((enum tree_code) (cst)->base.code) != INTEGER_CST || integer_zerop (cst)) | ||||
| 599 | return NULL_TREE(tree) nullptr; | ||||
| 600 | pre_shifts[i] = 0; | ||||
| 601 | post_shifts[i] = 0; | ||||
| 602 | mulc[i] = 0; | ||||
| 603 | if (use_pow2 | ||||
| 604 | && (!integer_pow2p (cst) || tree_int_cst_sgn (cst) != 1)) | ||||
| 605 | use_pow2 = false; | ||||
| 606 | if (use_pow2) | ||||
| 607 | { | ||||
| 608 | shifts[i] = tree_log2 (cst); | ||||
| 609 | if (shifts[i] != shifts[0] | ||||
| 610 | && code == TRUNC_DIV_EXPR | ||||
| 611 | && !has_vector_shift) | ||||
| 612 | use_pow2 = false; | ||||
| 613 | } | ||||
| 614 | if (mode == -2) | ||||
| 615 | continue; | ||||
| 616 | if (sign_p == UNSIGNED) | ||||
| 617 | { | ||||
| 618 | unsigned HOST_WIDE_INTlong mh; | ||||
| 619 | unsigned HOST_WIDE_INTlong d = TREE_INT_CST_LOW (cst)((unsigned long) (*tree_int_cst_elt_check ((cst), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 619, __FUNCTION__))) & mask; | ||||
| 620 | |||||
| 621 | if (d >= (HOST_WIDE_INT_1U1UL << (prec - 1))) | ||||
| 622 | /* FIXME: Can transform this into op0 >= op1 ? 1 : 0. */ | ||||
| 623 | return NULL_TREE(tree) nullptr; | ||||
| 624 | |||||
| 625 | if (d <= 1) | ||||
| 626 | { | ||||
| 627 | mode = -2; | ||||
| 628 | continue; | ||||
| 629 | } | ||||
| 630 | |||||
| 631 | /* Find a suitable multiplier and right shift count | ||||
| 632 | instead of multiplying with D. */ | ||||
| 633 | mh = choose_multiplier (d, prec, prec, &ml, &post_shift, &dummy_int); | ||||
| 634 | |||||
| 635 | /* If the suggested multiplier is more than SIZE bits, we can | ||||
| 636 | do better for even divisors, using an initial right shift. */ | ||||
| 637 | if ((mh != 0 && (d & 1) == 0) | ||||
| 638 | || (!has_vector_shift && pre_shift != -1)) | ||||
| 639 | { | ||||
| 640 | if (has_vector_shift) | ||||
| 641 | pre_shift = ctz_or_zero (d); | ||||
| 642 | else if (pre_shift == -1) | ||||
| 643 | { | ||||
| 644 | unsigned int j; | ||||
| 645 | for (j = 0; j < nunits; j++) | ||||
| 646 | { | ||||
| 647 | tree cst2 = VECTOR_CST_ELT (op1, j)vector_cst_elt (op1, j); | ||||
| 648 | unsigned HOST_WIDE_INTlong d2; | ||||
| 649 | int this_pre_shift; | ||||
| 650 | |||||
| 651 | if (!tree_fits_uhwi_p (cst2)) | ||||
| 652 | return NULL_TREE(tree) nullptr; | ||||
| 653 | d2 = tree_to_uhwi (cst2) & mask; | ||||
| 654 | if (d2 == 0) | ||||
| 655 | return NULL_TREE(tree) nullptr; | ||||
| 656 | this_pre_shift = floor_log2 (d2 & -d2); | ||||
| 657 | if (pre_shift == -1 || this_pre_shift < pre_shift) | ||||
| 658 | pre_shift = this_pre_shift; | ||||
| 659 | } | ||||
| 660 | if (i != 0 && pre_shift != 0) | ||||
| 661 | { | ||||
| 662 | /* Restart. */ | ||||
| 663 | i = -1U; | ||||
| 664 | mode = -1; | ||||
| 665 | continue; | ||||
| 666 | } | ||||
| 667 | } | ||||
| 668 | if (pre_shift != 0) | ||||
| 669 | { | ||||
| 670 | if ((d >> pre_shift) <= 1) | ||||
| 671 | { | ||||
| 672 | mode = -2; | ||||
| 673 | continue; | ||||
| 674 | } | ||||
| 675 | mh = choose_multiplier (d >> pre_shift, prec, | ||||
| 676 | prec - pre_shift, | ||||
| 677 | &ml, &post_shift, &dummy_int); | ||||
| 678 | gcc_assert (!mh)((void)(!(!mh) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 678, __FUNCTION__), 0 : 0)); | ||||
| 679 | pre_shifts[i] = pre_shift; | ||||
| 680 | } | ||||
| 681 | } | ||||
| 682 | if (!mh) | ||||
| 683 | this_mode = 0; | ||||
| 684 | else | ||||
| 685 | this_mode = 1; | ||||
| 686 | } | ||||
| 687 | else | ||||
| 688 | { | ||||
| 689 | HOST_WIDE_INTlong d = TREE_INT_CST_LOW (cst)((unsigned long) (*tree_int_cst_elt_check ((cst), (0), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 689, __FUNCTION__))); | ||||
| 690 | unsigned HOST_WIDE_INTlong abs_d; | ||||
| 691 | |||||
| 692 | if (d == -1) | ||||
| 693 | return NULL_TREE(tree) nullptr; | ||||
| 694 | |||||
| 695 | /* Since d might be INT_MIN, we have to cast to | ||||
| 696 | unsigned HOST_WIDE_INT before negating to avoid | ||||
| 697 | undefined signed overflow. */ | ||||
| 698 | abs_d = (d >= 0 | ||||
| 699 | ? (unsigned HOST_WIDE_INTlong) d | ||||
| 700 | : - (unsigned HOST_WIDE_INTlong) d); | ||||
| 701 | |||||
| 702 | /* n rem d = n rem -d */ | ||||
| 703 | if (code == TRUNC_MOD_EXPR && d < 0) | ||||
| 704 | { | ||||
| 705 | d = abs_d; | ||||
| 706 | use_abs_op1 = true; | ||||
| 707 | } | ||||
| 708 | if (abs_d == HOST_WIDE_INT_1U1UL << (prec - 1)) | ||||
| 709 | { | ||||
| 710 | /* This case is not handled correctly below. */ | ||||
| 711 | mode = -2; | ||||
| 712 | continue; | ||||
| 713 | } | ||||
| 714 | if (abs_d <= 1) | ||||
| 715 | { | ||||
| 716 | mode = -2; | ||||
| 717 | continue; | ||||
| 718 | } | ||||
| 719 | |||||
| 720 | choose_multiplier (abs_d, prec, prec - 1, &ml, | ||||
| 721 | &post_shift, &dummy_int); | ||||
| 722 | if (ml >= HOST_WIDE_INT_1U1UL << (prec - 1)) | ||||
| 723 | { | ||||
| 724 | this_mode = 4 + (d < 0); | ||||
| 725 | ml |= HOST_WIDE_INT_M1U-1UL << (prec - 1); | ||||
| 726 | } | ||||
| 727 | else | ||||
| 728 | this_mode = 2 + (d < 0); | ||||
| 729 | } | ||||
| 730 | mulc[i] = ml; | ||||
| 731 | post_shifts[i] = post_shift; | ||||
| 732 | if ((i && !has_vector_shift && post_shifts[0] != post_shift) | ||||
| 733 | || post_shift >= prec | ||||
| 734 | || pre_shifts[i] >= prec) | ||||
| 735 | this_mode = -2; | ||||
| 736 | |||||
| 737 | if (i == 0) | ||||
| 738 | mode = this_mode; | ||||
| 739 | else if (mode != this_mode) | ||||
| 740 | mode = -2; | ||||
| 741 | } | ||||
| 742 | |||||
| 743 | if (use_pow2) | ||||
| 744 | { | ||||
| 745 | tree addend = NULL_TREE(tree) nullptr; | ||||
| 746 | if (sign_p == SIGNED) | ||||
| 747 | { | ||||
| 748 | tree uns_type; | ||||
| 749 | |||||
| 750 | /* Both division and remainder sequences need | ||||
| 751 | op0 < 0 ? mask : 0 computed. It can be either computed as | ||||
| 752 | (type) (((uns_type) (op0 >> (prec - 1))) >> (prec - shifts[i])) | ||||
| 753 | if none of the shifts is 0, or as the conditional. */ | ||||
| 754 | for (i = 0; i < nunits; i++) | ||||
| 755 | if (shifts[i] == 0) | ||||
| 756 | break; | ||||
| 757 | uns_type | ||||
| 758 | = build_vector_type (build_nonstandard_integer_type (prec, 1), | ||||
| 759 | nunits); | ||||
| 760 | if (i == nunits && TYPE_MODE (uns_type)((((enum tree_code) ((tree_class_check ((uns_type), (tcc_type ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 760, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (uns_type) : (uns_type)->type_common.mode) == TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 760, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) | ||||
| 761 | { | ||||
| 762 | for (i = 0; i < nunits; i++) | ||||
| 763 | shift_temps[i] = prec - 1; | ||||
| 764 | cur_op = add_rshift (gsi, type, op0, shift_temps); | ||||
| 765 | if (cur_op != NULL_TREE(tree) nullptr) | ||||
| 766 | { | ||||
| 767 | cur_op = gimplify_build1 (gsi, VIEW_CONVERT_EXPR, | ||||
| 768 | uns_type, cur_op); | ||||
| 769 | for (i = 0; i < nunits; i++) | ||||
| 770 | shift_temps[i] = prec - shifts[i]; | ||||
| 771 | cur_op = add_rshift (gsi, uns_type, cur_op, shift_temps); | ||||
| 772 | if (cur_op != NULL_TREE(tree) nullptr) | ||||
| 773 | addend = gimplify_build1 (gsi, VIEW_CONVERT_EXPR, | ||||
| 774 | type, cur_op); | ||||
| 775 | } | ||||
| 776 | } | ||||
| 777 | if (addend == NULL_TREE(tree) nullptr | ||||
| 778 | && expand_vec_cond_expr_p (type, type, LT_EXPR)) | ||||
| 779 | { | ||||
| 780 | tree zero, cst, mask_type, mask; | ||||
| 781 | gimple *stmt, *cond; | ||||
| 782 | |||||
| 783 | mask_type = truth_type_for (type); | ||||
| 784 | zero = build_zero_cst (type); | ||||
| 785 | mask = make_ssa_name (mask_type); | ||||
| 786 | cond = gimple_build_assign (mask, LT_EXPR, op0, zero); | ||||
| 787 | gsi_insert_before (gsi, cond, GSI_SAME_STMT); | ||||
| 788 | tree_vector_builder vec (type, nunits, 1); | ||||
| 789 | for (i = 0; i < nunits; i++) | ||||
| 790 | vec.quick_push (build_int_cst (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 790, __FUNCTION__))->typed.type), | ||||
| 791 | (HOST_WIDE_INT_1U1UL | ||||
| 792 | << shifts[i]) - 1)); | ||||
| 793 | cst = vec.build (); | ||||
| 794 | addend = make_ssa_name (type); | ||||
| 795 | stmt | ||||
| 796 | = gimple_build_assign (addend, VEC_COND_EXPR, mask, cst, zero); | ||||
| 797 | gsi_insert_before (gsi, stmt, GSI_SAME_STMT); | ||||
| 798 | } | ||||
| 799 | } | ||||
| 800 | if (code == TRUNC_DIV_EXPR) | ||||
| 801 | { | ||||
| 802 | if (sign_p == UNSIGNED) | ||||
| 803 | { | ||||
| 804 | /* q = op0 >> shift; */ | ||||
| 805 | cur_op = add_rshift (gsi, type, op0, shifts); | ||||
| 806 | if (cur_op != NULL_TREE(tree) nullptr) | ||||
| 807 | return cur_op; | ||||
| 808 | } | ||||
| 809 | else if (addend != NULL_TREE(tree) nullptr) | ||||
| 810 | { | ||||
| 811 | /* t1 = op0 + addend; | ||||
| 812 | q = t1 >> shift; */ | ||||
| 813 | op = optab_for_tree_code (PLUS_EXPR, type, optab_default); | ||||
| 814 | if (op != unknown_optab | ||||
| 815 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 815, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) != CODE_FOR_nothing) | ||||
| 816 | { | ||||
| 817 | cur_op = gimplify_build2 (gsi, PLUS_EXPR, type, op0, addend); | ||||
| 818 | cur_op = add_rshift (gsi, type, cur_op, shifts); | ||||
| 819 | if (cur_op != NULL_TREE(tree) nullptr) | ||||
| 820 | return cur_op; | ||||
| 821 | } | ||||
| 822 | } | ||||
| 823 | } | ||||
| 824 | else | ||||
| 825 | { | ||||
| 826 | tree mask; | ||||
| 827 | tree_vector_builder vec (type, nunits, 1); | ||||
| 828 | for (i = 0; i < nunits; i++) | ||||
| 829 | vec.quick_push (build_int_cst (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 829, __FUNCTION__))->typed.type), | ||||
| 830 | (HOST_WIDE_INT_1U1UL | ||||
| 831 | << shifts[i]) - 1)); | ||||
| 832 | mask = vec.build (); | ||||
| 833 | op = optab_for_tree_code (BIT_AND_EXPR, type, optab_default); | ||||
| 834 | if (op != unknown_optab | ||||
| 835 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 835, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) != CODE_FOR_nothing) | ||||
| 836 | { | ||||
| 837 | if (sign_p == UNSIGNED) | ||||
| 838 | /* r = op0 & mask; */ | ||||
| 839 | return gimplify_build2 (gsi, BIT_AND_EXPR, type, op0, mask); | ||||
| 840 | else if (addend != NULL_TREE(tree) nullptr) | ||||
| 841 | { | ||||
| 842 | /* t1 = op0 + addend; | ||||
| 843 | t2 = t1 & mask; | ||||
| 844 | r = t2 - addend; */ | ||||
| 845 | op = optab_for_tree_code (PLUS_EXPR, type, optab_default); | ||||
| 846 | if (op != unknown_optab | ||||
| 847 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 847, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) | ||||
| 848 | != CODE_FOR_nothing) | ||||
| 849 | { | ||||
| 850 | cur_op = gimplify_build2 (gsi, PLUS_EXPR, type, op0, | ||||
| 851 | addend); | ||||
| 852 | cur_op = gimplify_build2 (gsi, BIT_AND_EXPR, type, | ||||
| 853 | cur_op, mask); | ||||
| 854 | op = optab_for_tree_code (MINUS_EXPR, type, | ||||
| 855 | optab_default); | ||||
| 856 | if (op != unknown_optab | ||||
| 857 | && optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 857, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) | ||||
| 858 | != CODE_FOR_nothing) | ||||
| 859 | return gimplify_build2 (gsi, MINUS_EXPR, type, | ||||
| 860 | cur_op, addend); | ||||
| 861 | } | ||||
| 862 | } | ||||
| 863 | } | ||||
| 864 | } | ||||
| 865 | } | ||||
| 866 | |||||
| 867 | if (mode == -2 || BYTES_BIG_ENDIAN0 != WORDS_BIG_ENDIAN0) | ||||
| 868 | return NULL_TREE(tree) nullptr; | ||||
| 869 | |||||
| 870 | if (!can_mult_highpart_p (TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 870, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode), TYPE_UNSIGNED (type)((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 870, __FUNCTION__))->base.u.bits.unsigned_flag))) | ||||
| 871 | return NULL_TREE(tree) nullptr; | ||||
| 872 | |||||
| 873 | cur_op = op0; | ||||
| 874 | |||||
| 875 | switch (mode) | ||||
| 876 | { | ||||
| 877 | case 0: | ||||
| 878 | gcc_assert (sign_p == UNSIGNED)((void)(!(sign_p == UNSIGNED) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 878, __FUNCTION__), 0 : 0)); | ||||
| 879 | /* t1 = oprnd0 >> pre_shift; | ||||
| 880 | t2 = t1 h* ml; | ||||
| 881 | q = t2 >> post_shift; */ | ||||
| 882 | cur_op = add_rshift (gsi, type, cur_op, pre_shifts); | ||||
| 883 | if (cur_op == NULL_TREE(tree) nullptr) | ||||
| 884 | return NULL_TREE(tree) nullptr; | ||||
| 885 | break; | ||||
| 886 | case 1: | ||||
| 887 | gcc_assert (sign_p == UNSIGNED)((void)(!(sign_p == UNSIGNED) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 887, __FUNCTION__), 0 : 0)); | ||||
| 888 | for (i = 0; i < nunits; i++) | ||||
| 889 | { | ||||
| 890 | shift_temps[i] = 1; | ||||
| 891 | post_shifts[i]--; | ||||
| 892 | } | ||||
| 893 | break; | ||||
| 894 | case 2: | ||||
| 895 | case 3: | ||||
| 896 | case 4: | ||||
| 897 | case 5: | ||||
| 898 | gcc_assert (sign_p == SIGNED)((void)(!(sign_p == SIGNED) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 898, __FUNCTION__), 0 : 0)); | ||||
| 899 | for (i = 0; i < nunits; i++) | ||||
| 900 | shift_temps[i] = prec - 1; | ||||
| 901 | break; | ||||
| 902 | default: | ||||
| 903 | return NULL_TREE(tree) nullptr; | ||||
| 904 | } | ||||
| 905 | |||||
| 906 | tree_vector_builder vec (type, nunits, 1); | ||||
| 907 | for (i = 0; i < nunits; i++) | ||||
| 908 | vec.quick_push (build_int_cst (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 908, __FUNCTION__))->typed.type), mulc[i])); | ||||
| 909 | mulcst = vec.build (); | ||||
| 910 | |||||
| 911 | cur_op = gimplify_build2 (gsi, MULT_HIGHPART_EXPR, type, cur_op, mulcst); | ||||
| 912 | |||||
| 913 | switch (mode) | ||||
| 914 | { | ||||
| 915 | case 0: | ||||
| 916 | /* t1 = oprnd0 >> pre_shift; | ||||
| 917 | t2 = t1 h* ml; | ||||
| 918 | q = t2 >> post_shift; */ | ||||
| 919 | cur_op = add_rshift (gsi, type, cur_op, post_shifts); | ||||
| 920 | break; | ||||
| 921 | case 1: | ||||
| 922 | /* t1 = oprnd0 h* ml; | ||||
| 923 | t2 = oprnd0 - t1; | ||||
| 924 | t3 = t2 >> 1; | ||||
| 925 | t4 = t1 + t3; | ||||
| 926 | q = t4 >> (post_shift - 1); */ | ||||
| 927 | op = optab_for_tree_code (MINUS_EXPR, type, optab_default); | ||||
| 928 | if (op == unknown_optab | ||||
| 929 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 929, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 930 | return NULL_TREE(tree) nullptr; | ||||
| 931 | tem = gimplify_build2 (gsi, MINUS_EXPR, type, op0, cur_op); | ||||
| 932 | tem = add_rshift (gsi, type, tem, shift_temps); | ||||
| 933 | op = optab_for_tree_code (PLUS_EXPR, type, optab_default); | ||||
| 934 | if (op == unknown_optab | ||||
| 935 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 935, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 936 | return NULL_TREE(tree) nullptr; | ||||
| 937 | tem = gimplify_build2 (gsi, PLUS_EXPR, type, cur_op, tem); | ||||
| 938 | cur_op = add_rshift (gsi, type, tem, post_shifts); | ||||
| 939 | if (cur_op == NULL_TREE(tree) nullptr) | ||||
| 940 | return NULL_TREE(tree) nullptr; | ||||
| 941 | break; | ||||
| 942 | case 2: | ||||
| 943 | case 3: | ||||
| 944 | case 4: | ||||
| 945 | case 5: | ||||
| 946 | /* t1 = oprnd0 h* ml; | ||||
| 947 | t2 = t1; [ iff (mode & 2) != 0 ] | ||||
| 948 | t2 = t1 + oprnd0; [ iff (mode & 2) == 0 ] | ||||
| 949 | t3 = t2 >> post_shift; | ||||
| 950 | t4 = oprnd0 >> (prec - 1); | ||||
| 951 | q = t3 - t4; [ iff (mode & 1) == 0 ] | ||||
| 952 | q = t4 - t3; [ iff (mode & 1) != 0 ] */ | ||||
| 953 | if ((mode & 2) == 0) | ||||
| 954 | { | ||||
| 955 | op = optab_for_tree_code (PLUS_EXPR, type, optab_default); | ||||
| 956 | if (op == unknown_optab | ||||
| 957 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 957, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 958 | return NULL_TREE(tree) nullptr; | ||||
| 959 | cur_op = gimplify_build2 (gsi, PLUS_EXPR, type, cur_op, op0); | ||||
| 960 | } | ||||
| 961 | cur_op = add_rshift (gsi, type, cur_op, post_shifts); | ||||
| 962 | if (cur_op == NULL_TREE(tree) nullptr) | ||||
| 963 | return NULL_TREE(tree) nullptr; | ||||
| 964 | tem = add_rshift (gsi, type, op0, shift_temps); | ||||
| 965 | if (tem == NULL_TREE(tree) nullptr) | ||||
| 966 | return NULL_TREE(tree) nullptr; | ||||
| 967 | op = optab_for_tree_code (MINUS_EXPR, type, optab_default); | ||||
| 968 | if (op == unknown_optab | ||||
| 969 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 969, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 970 | return NULL_TREE(tree) nullptr; | ||||
| 971 | if ((mode & 1) == 0) | ||||
| 972 | cur_op = gimplify_build2 (gsi, MINUS_EXPR, type, cur_op, tem); | ||||
| 973 | else | ||||
| 974 | cur_op = gimplify_build2 (gsi, MINUS_EXPR, type, tem, cur_op); | ||||
| 975 | break; | ||||
| 976 | default: | ||||
| 977 | gcc_unreachable ()(fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 977, __FUNCTION__)); | ||||
| 978 | } | ||||
| 979 | |||||
| 980 | if (code == TRUNC_DIV_EXPR) | ||||
| 981 | return cur_op; | ||||
| 982 | |||||
| 983 | /* We divided. Now finish by: | ||||
| 984 | t1 = q * oprnd1; | ||||
| 985 | r = oprnd0 - t1; */ | ||||
| 986 | op = optab_for_tree_code (MULT_EXPR, type, optab_default); | ||||
| 987 | if (op == unknown_optab | ||||
| 988 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 988, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 989 | return NULL_TREE(tree) nullptr; | ||||
| 990 | if (use_abs_op1) | ||||
| 991 | { | ||||
| 992 | tree_vector_builder elts; | ||||
| 993 | if (!elts.new_unary_operation (type, op1, false)) | ||||
| 994 | return NULL_TREE(tree) nullptr; | ||||
| 995 | unsigned int count = elts.encoded_nelts (); | ||||
| 996 | for (unsigned int i = 0; i < count; ++i) | ||||
| 997 | { | ||||
| 998 | tree elem1 = VECTOR_CST_ELT (op1, i)vector_cst_elt (op1, i); | ||||
| 999 | |||||
| 1000 | tree elt = const_unop (ABS_EXPR, TREE_TYPE (elem1)((contains_struct_check ((elem1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1000, __FUNCTION__))->typed.type), elem1); | ||||
| 1001 | if (elt == NULL_TREE(tree) nullptr) | ||||
| 1002 | return NULL_TREE(tree) nullptr; | ||||
| 1003 | elts.quick_push (elt); | ||||
| 1004 | } | ||||
| 1005 | op1 = elts.build (); | ||||
| 1006 | } | ||||
| 1007 | tem = gimplify_build2 (gsi, MULT_EXPR, type, cur_op, op1); | ||||
| 1008 | op = optab_for_tree_code (MINUS_EXPR, type, optab_default); | ||||
| 1009 | if (op == unknown_optab | ||||
| 1010 | || optab_handler (op, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1010, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode)) == CODE_FOR_nothing) | ||||
| 1011 | return NULL_TREE(tree) nullptr; | ||||
| 1012 | return gimplify_build2 (gsi, MINUS_EXPR, type, op0, tem); | ||||
| 1013 | } | ||||
| 1014 | |||||
| 1015 | /* Expand a vector condition to scalars, by using many conditions | ||||
| 1016 | on the vector's elements. */ | ||||
| 1017 | |||||
| 1018 | static bool | ||||
| 1019 | expand_vector_condition (gimple_stmt_iterator *gsi, bitmap dce_ssa_names) | ||||
| 1020 | { | ||||
| 1021 | gassign *stmt = as_a <gassign *> (gsi_stmt (*gsi)); | ||||
| 1022 | tree type = TREE_TYPE (gimple_assign_lhs (stmt))((contains_struct_check ((gimple_assign_lhs (stmt)), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1022, __FUNCTION__))->typed.type); | ||||
| 1023 | tree a = gimple_assign_rhs1 (stmt); | ||||
| 1024 | tree a1 = a; | ||||
| 1025 | tree a2 = NULL_TREE(tree) nullptr; | ||||
| 1026 | bool a_is_comparison = false; | ||||
| 1027 | bool a_is_scalar_bitmask = false; | ||||
| 1028 | tree b = gimple_assign_rhs2 (stmt); | ||||
| 1029 | tree c = gimple_assign_rhs3 (stmt); | ||||
| 1030 | vec<constructor_elt, va_gc> *v; | ||||
| 1031 | tree constr; | ||||
| 1032 | tree inner_type = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1032, __FUNCTION__))->typed.type); | ||||
| 1033 | tree width = vector_element_bits_tree (type); | ||||
| 1034 | tree cond_type = TREE_TYPE (TREE_TYPE (a))((contains_struct_check ((((contains_struct_check ((a), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1034, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1034, __FUNCTION__))->typed.type); | ||||
| 1035 | tree comp_inner_type = cond_type; | ||||
| 1036 | tree index = bitsize_int (0)size_int_kind (0, stk_bitsizetype); | ||||
| 1037 | tree comp_width = width; | ||||
| 1038 | tree comp_index = index; | ||||
| 1039 | location_t loc = gimple_location (gsi_stmt (*gsi)); | ||||
| 1040 | tree_code code = TREE_CODE (a)((enum tree_code) (a)->base.code); | ||||
| 1041 | gassign *assign = NULLnullptr; | ||||
| 1042 | |||||
| 1043 | if (code == SSA_NAME) | ||||
| 1044 | { | ||||
| 1045 | assign = dyn_cast<gassign *> (SSA_NAME_DEF_STMT (a)(tree_check ((a), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1045, __FUNCTION__, (SSA_NAME)))->ssa_name.def_stmt); | ||||
| 1046 | if (assign != NULLnullptr | ||||
| 1047 | && TREE_CODE_CLASS (gimple_assign_rhs_code (assign))tree_code_type_tmpl <0>::tree_code_type[(int) (gimple_assign_rhs_code (assign))] == tcc_comparison) | ||||
| 1048 | { | ||||
| 1049 | a_is_comparison = true; | ||||
| 1050 | a1 = gimple_assign_rhs1 (assign); | ||||
| 1051 | a2 = gimple_assign_rhs2 (assign); | ||||
| 1052 | code = gimple_assign_rhs_code (assign); | ||||
| 1053 | comp_inner_type = TREE_TYPE (TREE_TYPE (a1))((contains_struct_check ((((contains_struct_check ((a1), (TS_TYPED ), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1053, __FUNCTION__))->typed.type)), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1053, __FUNCTION__))->typed.type); | ||||
| 1054 | comp_width = vector_element_bits_tree (TREE_TYPE (a1)((contains_struct_check ((a1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1054, __FUNCTION__))->typed.type)); | ||||
| 1055 | } | ||||
| 1056 | } | ||||
| 1057 | |||||
| 1058 | if (expand_vec_cond_expr_p (type, TREE_TYPE (a1)((contains_struct_check ((a1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1058, __FUNCTION__))->typed.type), code) | ||||
| 1059 | || (integer_all_onesp (b) && integer_zerop (c) | ||||
| 1060 | && expand_vec_cmp_expr_p (type, TREE_TYPE (a1)((contains_struct_check ((a1), (TS_TYPED), "/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1060, __FUNCTION__))->typed.type), code))) | ||||
| 1061 | { | ||||
| 1062 | gcc_assert (TREE_CODE (a) == SSA_NAME || TREE_CODE (a) == VECTOR_CST)((void)(!(((enum tree_code) (a)->base.code) == SSA_NAME || ((enum tree_code) (a)->base.code) == VECTOR_CST) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/tree-vect-generic.cc" , 1062, __FUNCTION__), 0 : 0)); | ||||
| 1063 | return true; | ||||
| 1064 | } | ||||
| 1065 | |||||
| 1066 | /* If a has vector boolean type and is a comparison, above | ||||
| 1067 | expand_vec_cond_expr_p might fail, even if both the comparison and | ||||
| 1068 | VEC_COND_EXPR could be supported individually. See PR109176. */ | ||||
| 1069 | if (a_is_comparison
|
14.1 | 'a_is_comparison' is false |
18.1 | 'a_is_comparison' is false |
18.1 | 'a_is_comparison' is false |
19.1 | 'a_is_comparison' is false |
19.1 | 'a_is_comparison' is false |
32.1 | 'i' is < 'nunits' |
32.1 | 'i' is < 'nunits' |
33.1 | 'a_is_comparison' is false |
33.1 | 'a_is_comparison' is false |
34.1 | 'a_is_scalar_bitmask' is false |
34.1 | 'a_is_scalar_bitmask' is false |
38 | Called C++ object pointer is null |
1 | Assuming field 'code' is not equal to VECTOR_TYPE |
| 1 | /* Vector API for GNU compiler. | ||||
| 2 | Copyright (C) 2004-2023 Free Software Foundation, Inc. | ||||
| 3 | Contributed by Nathan Sidwell <nathan@codesourcery.com> | ||||
| 4 | Re-implemented in C++ by Diego Novillo <dnovillo@google.com> | ||||
| 5 | |||||
| 6 | This file is part of GCC. | ||||
| 7 | |||||
| 8 | GCC is free software; you can redistribute it and/or modify it under | ||||
| 9 | the terms of the GNU General Public License as published by the Free | ||||
| 10 | Software Foundation; either version 3, or (at your option) any later | ||||
| 11 | version. | ||||
| 12 | |||||
| 13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | ||||
| 14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||||
| 15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||||
| 16 | for more details. | ||||
| 17 | |||||
| 18 | You should have received a copy of the GNU General Public License | ||||
| 19 | along with GCC; see the file COPYING3. If not see | ||||
| 20 | <http://www.gnu.org/licenses/>. */ | ||||
| 21 | |||||
| 22 | #ifndef GCC_VEC_H | ||||
| 23 | #define GCC_VEC_H | ||||
| 24 | |||||
| 25 | /* Some gen* file have no ggc support as the header file gtype-desc.h is | ||||
| 26 | missing. Provide these definitions in case ggc.h has not been included. | ||||
| 27 | This is not a problem because any code that runs before gengtype is built | ||||
| 28 | will never need to use GC vectors.*/ | ||||
| 29 | |||||
| 30 | extern void ggc_free (void *); | ||||
| 31 | extern size_t ggc_round_alloc_size (size_t requested_size); | ||||
| 32 | extern void *ggc_realloc (void *, size_t MEM_STAT_DECL); | ||||
| 33 | |||||
| 34 | /* Templated vector type and associated interfaces. | ||||
| 35 | |||||
| 36 | The interface functions are typesafe and use inline functions, | ||||
| 37 | sometimes backed by out-of-line generic functions. The vectors are | ||||
| 38 | designed to interoperate with the GTY machinery. | ||||
| 39 | |||||
| 40 | There are both 'index' and 'iterate' accessors. The index accessor | ||||
| 41 | is implemented by operator[]. The iterator returns a boolean | ||||
| 42 | iteration condition and updates the iteration variable passed by | ||||
| 43 | reference. Because the iterator will be inlined, the address-of | ||||
| 44 | can be optimized away. | ||||
| 45 | |||||
| 46 | Each operation that increases the number of active elements is | ||||
| 47 | available in 'quick' and 'safe' variants. The former presumes that | ||||
| 48 | there is sufficient allocated space for the operation to succeed | ||||
| 49 | (it dies if there is not). The latter will reallocate the | ||||
| 50 | vector, if needed. Reallocation causes an exponential increase in | ||||
| 51 | vector size. If you know you will be adding N elements, it would | ||||
| 52 | be more efficient to use the reserve operation before adding the | ||||
| 53 | elements with the 'quick' operation. This will ensure there are at | ||||
| 54 | least as many elements as you ask for, it will exponentially | ||||
| 55 | increase if there are too few spare slots. If you want reserve a | ||||
| 56 | specific number of slots, but do not want the exponential increase | ||||
| 57 | (for instance, you know this is the last allocation), use the | ||||
| 58 | reserve_exact operation. You can also create a vector of a | ||||
| 59 | specific size from the get go. | ||||
| 60 | |||||
| 61 | You should prefer the push and pop operations, as they append and | ||||
| 62 | remove from the end of the vector. If you need to remove several | ||||
| 63 | items in one go, use the truncate operation. The insert and remove | ||||
| 64 | operations allow you to change elements in the middle of the | ||||
| 65 | vector. There are two remove operations, one which preserves the | ||||
| 66 | element ordering 'ordered_remove', and one which does not | ||||
| 67 | 'unordered_remove'. The latter function copies the end element | ||||
| 68 | into the removed slot, rather than invoke a memmove operation. The | ||||
| 69 | 'lower_bound' function will determine where to place an item in the | ||||
| 70 | array using insert that will maintain sorted order. | ||||
| 71 | |||||
| 72 | Vectors are template types with three arguments: the type of the | ||||
| 73 | elements in the vector, the allocation strategy, and the physical | ||||
| 74 | layout to use | ||||
| 75 | |||||
| 76 | Four allocation strategies are supported: | ||||
| 77 | |||||
| 78 | - Heap: allocation is done using malloc/free. This is the | ||||
| 79 | default allocation strategy. | ||||
| 80 | |||||
| 81 | - GC: allocation is done using ggc_alloc/ggc_free. | ||||
| 82 | |||||
| 83 | - GC atomic: same as GC with the exception that the elements | ||||
| 84 | themselves are assumed to be of an atomic type that does | ||||
| 85 | not need to be garbage collected. This means that marking | ||||
| 86 | routines do not need to traverse the array marking the | ||||
| 87 | individual elements. This increases the performance of | ||||
| 88 | GC activities. | ||||
| 89 | |||||
| 90 | Two physical layouts are supported: | ||||
| 91 | |||||
| 92 | - Embedded: The vector is structured using the trailing array | ||||
| 93 | idiom. The last member of the structure is an array of size | ||||
| 94 | 1. When the vector is initially allocated, a single memory | ||||
| 95 | block is created to hold the vector's control data and the | ||||
| 96 | array of elements. These vectors cannot grow without | ||||
| 97 | reallocation (see discussion on embeddable vectors below). | ||||
| 98 | |||||
| 99 | - Space efficient: The vector is structured as a pointer to an | ||||
| 100 | embedded vector. This is the default layout. It means that | ||||
| 101 | vectors occupy a single word of storage before initial | ||||
| 102 | allocation. Vectors are allowed to grow (the internal | ||||
| 103 | pointer is reallocated but the main vector instance does not | ||||
| 104 | need to relocate). | ||||
| 105 | |||||
| 106 | The type, allocation and layout are specified when the vector is | ||||
| 107 | declared. | ||||
| 108 | |||||
| 109 | If you need to directly manipulate a vector, then the 'address' | ||||
| 110 | accessor will return the address of the start of the vector. Also | ||||
| 111 | the 'space' predicate will tell you whether there is spare capacity | ||||
| 112 | in the vector. You will not normally need to use these two functions. | ||||
| 113 | |||||
| 114 | Notes on the different layout strategies | ||||
| 115 | |||||
| 116 | * Embeddable vectors (vec<T, A, vl_embed>) | ||||
| 117 | |||||
| 118 | These vectors are suitable to be embedded in other data | ||||
| 119 | structures so that they can be pre-allocated in a contiguous | ||||
| 120 | memory block. | ||||
| 121 | |||||
| 122 | Embeddable vectors are implemented using the trailing array | ||||
| 123 | idiom, thus they are not resizeable without changing the address | ||||
| 124 | of the vector object itself. This means you cannot have | ||||
| 125 | variables or fields of embeddable vector type -- always use a | ||||
| 126 | pointer to a vector. The one exception is the final field of a | ||||
| 127 | structure, which could be a vector type. | ||||
| 128 | |||||
| 129 | You will have to use the embedded_size & embedded_init calls to | ||||
| 130 | create such objects, and they will not be resizeable (so the | ||||
| 131 | 'safe' allocation variants are not available). | ||||
| 132 | |||||
| 133 | Properties of embeddable vectors: | ||||
| 134 | |||||
| 135 | - The whole vector and control data are allocated in a single | ||||
| 136 | contiguous block. It uses the trailing-vector idiom, so | ||||
| 137 | allocation must reserve enough space for all the elements | ||||
| 138 | in the vector plus its control data. | ||||
| 139 | - The vector cannot be re-allocated. | ||||
| 140 | - The vector cannot grow nor shrink. | ||||
| 141 | - No indirections needed for access/manipulation. | ||||
| 142 | - It requires 2 words of storage (prior to vector allocation). | ||||
| 143 | |||||
| 144 | |||||
| 145 | * Space efficient vector (vec<T, A, vl_ptr>) | ||||
| 146 | |||||
| 147 | These vectors can grow dynamically and are allocated together | ||||
| 148 | with their control data. They are suited to be included in data | ||||
| 149 | structures. Prior to initial allocation, they only take a single | ||||
| 150 | word of storage. | ||||
| 151 | |||||
| 152 | These vectors are implemented as a pointer to embeddable vectors. | ||||
| 153 | The semantics allow for this pointer to be NULL to represent | ||||
| 154 | empty vectors. This way, empty vectors occupy minimal space in | ||||
| 155 | the structure containing them. | ||||
| 156 | |||||
| 157 | Properties: | ||||
| 158 | |||||
| 159 | - The whole vector and control data are allocated in a single | ||||
| 160 | contiguous block. | ||||
| 161 | - The whole vector may be re-allocated. | ||||
| 162 | - Vector data may grow and shrink. | ||||
| 163 | - Access and manipulation requires a pointer test and | ||||
| 164 | indirection. | ||||
| 165 | - It requires 1 word of storage (prior to vector allocation). | ||||
| 166 | |||||
| 167 | An example of their use would be, | ||||
| 168 | |||||
| 169 | struct my_struct { | ||||
| 170 | // A space-efficient vector of tree pointers in GC memory. | ||||
| 171 | vec<tree, va_gc, vl_ptr> v; | ||||
| 172 | }; | ||||
| 173 | |||||
| 174 | struct my_struct *s; | ||||
| 175 | |||||
| 176 | if (s->v.length ()) { we have some contents } | ||||
| 177 | s->v.safe_push (decl); // append some decl onto the end | ||||
| 178 | for (ix = 0; s->v.iterate (ix, &elt); ix++) | ||||
| 179 | { do something with elt } | ||||
| 180 | */ | ||||
| 181 | |||||
| 182 | /* Support function for statistics. */ | ||||
| 183 | extern void dump_vec_loc_statistics (void); | ||||
| 184 | |||||
| 185 | /* Hashtable mapping vec addresses to descriptors. */ | ||||
| 186 | extern htab_t vec_mem_usage_hash; | ||||
| 187 | |||||
| 188 | /* Control data for vectors. This contains the number of allocated | ||||
| 189 | and used slots inside a vector. */ | ||||
| 190 | |||||
| 191 | struct vec_prefix | ||||
| 192 | { | ||||
| 193 | /* FIXME - These fields should be private, but we need to cater to | ||||
| 194 | compilers that have stricter notions of PODness for types. */ | ||||
| 195 | |||||
| 196 | /* Memory allocation support routines in vec.cc. */ | ||||
| 197 | void register_overhead (void *, size_t, size_t CXX_MEM_STAT_INFO); | ||||
| 198 | void release_overhead (void *, size_t, size_t, bool CXX_MEM_STAT_INFO); | ||||
| 199 | static unsigned calculate_allocation (vec_prefix *, unsigned, bool); | ||||
| 200 | static unsigned calculate_allocation_1 (unsigned, unsigned); | ||||
| 201 | |||||
| 202 | /* Note that vec_prefix should be a base class for vec, but we use | ||||
| 203 | offsetof() on vector fields of tree structures (e.g., | ||||
| 204 | tree_binfo::base_binfos), and offsetof only supports base types. | ||||
| 205 | |||||
| 206 | To compensate, we make vec_prefix a field inside vec and make | ||||
| 207 | vec a friend class of vec_prefix so it can access its fields. */ | ||||
| 208 | template <typename, typename, typename> friend struct vec; | ||||
| 209 | |||||
| 210 | /* The allocator types also need access to our internals. */ | ||||
| 211 | friend struct va_gc; | ||||
| 212 | friend struct va_gc_atomic; | ||||
| 213 | friend struct va_heap; | ||||
| 214 | |||||
| 215 | unsigned m_alloc : 31; | ||||
| 216 | unsigned m_using_auto_storage : 1; | ||||
| 217 | unsigned m_num; | ||||
| 218 | }; | ||||
| 219 | |||||
| 220 | /* Calculate the number of slots to reserve a vector, making sure that | ||||
| 221 | RESERVE slots are free. If EXACT grow exactly, otherwise grow | ||||
| 222 | exponentially. PFX is the control data for the vector. */ | ||||
| 223 | |||||
| 224 | inline unsigned | ||||
| 225 | vec_prefix::calculate_allocation (vec_prefix *pfx, unsigned reserve, | ||||
| 226 | bool exact) | ||||
| 227 | { | ||||
| 228 | if (exact) | ||||
| 229 | return (pfx ? pfx->m_num : 0) + reserve; | ||||
| 230 | else if (!pfx) | ||||
| 231 | return MAX (4, reserve)((4) > (reserve) ? (4) : (reserve)); | ||||
| 232 | return calculate_allocation_1 (pfx->m_alloc, pfx->m_num + reserve); | ||||
| 233 | } | ||||
| 234 | |||||
| 235 | template<typename, typename, typename> struct vec; | ||||
| 236 | |||||
| 237 | /* Valid vector layouts | ||||
| 238 | |||||
| 239 | vl_embed - Embeddable vector that uses the trailing array idiom. | ||||
| 240 | vl_ptr - Space efficient vector that uses a pointer to an | ||||
| 241 | embeddable vector. */ | ||||
| 242 | struct vl_embed { }; | ||||
| 243 | struct vl_ptr { }; | ||||
| 244 | |||||
| 245 | |||||
| 246 | /* Types of supported allocations | ||||
| 247 | |||||
| 248 | va_heap - Allocation uses malloc/free. | ||||
| 249 | va_gc - Allocation uses ggc_alloc. | ||||
| 250 | va_gc_atomic - Same as GC, but individual elements of the array | ||||
| 251 | do not need to be marked during collection. */ | ||||
| 252 | |||||
| 253 | /* Allocator type for heap vectors. */ | ||||
| 254 | struct va_heap | ||||
| 255 | { | ||||
| 256 | /* Heap vectors are frequently regular instances, so use the vl_ptr | ||||
| 257 | layout for them. */ | ||||
| 258 | typedef vl_ptr default_layout; | ||||
| 259 | |||||
| 260 | template<typename T> | ||||
| 261 | static void reserve (vec<T, va_heap, vl_embed> *&, unsigned, bool | ||||
| 262 | CXX_MEM_STAT_INFO); | ||||
| 263 | |||||
| 264 | template<typename T> | ||||
| 265 | static void release (vec<T, va_heap, vl_embed> *&); | ||||
| 266 | }; | ||||
| 267 | |||||
| 268 | |||||
| 269 | /* Allocator for heap memory. Ensure there are at least RESERVE free | ||||
| 270 | slots in V. If EXACT is true, grow exactly, else grow | ||||
| 271 | exponentially. As a special case, if the vector had not been | ||||
| 272 | allocated and RESERVE is 0, no vector will be created. */ | ||||
| 273 | |||||
| 274 | template<typename T> | ||||
| 275 | inline void | ||||
| 276 | va_heap::reserve (vec<T, va_heap, vl_embed> *&v, unsigned reserve, bool exact | ||||
| 277 | MEM_STAT_DECL) | ||||
| 278 | { | ||||
| 279 | size_t elt_size = sizeof (T); | ||||
| 280 | unsigned alloc | ||||
| 281 | = vec_prefix::calculate_allocation (v ? &v->m_vecpfx : 0, reserve, exact); | ||||
| 282 | gcc_checking_assert (alloc)((void)(!(alloc) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 282, __FUNCTION__), 0 : 0)); | ||||
| 283 | |||||
| 284 | if (GATHER_STATISTICS0 && v) | ||||
| 285 | v->m_vecpfx.release_overhead (v, elt_size * v->allocated (), | ||||
| 286 | v->allocated (), false); | ||||
| 287 | |||||
| 288 | size_t size = vec<T, va_heap, vl_embed>::embedded_size (alloc); | ||||
| 289 | unsigned nelem = v ? v->length () : 0; | ||||
| 290 | v = static_cast <vec<T, va_heap, vl_embed> *> (xrealloc (v, size)); | ||||
| 291 | v->embedded_init (alloc, nelem); | ||||
| 292 | |||||
| 293 | if (GATHER_STATISTICS0) | ||||
| 294 | v->m_vecpfx.register_overhead (v, alloc, elt_size PASS_MEM_STAT); | ||||
| 295 | } | ||||
| 296 | |||||
| 297 | |||||
| 298 | #if GCC_VERSION(4 * 1000 + 2) >= 4007 | ||||
| 299 | #pragma GCC diagnostic push | ||||
| 300 | #pragma GCC diagnostic ignored "-Wfree-nonheap-object" | ||||
| 301 | #endif | ||||
| 302 | |||||
| 303 | /* Free the heap space allocated for vector V. */ | ||||
| 304 | |||||
| 305 | template<typename T> | ||||
| 306 | void | ||||
| 307 | va_heap::release (vec<T, va_heap, vl_embed> *&v) | ||||
| 308 | { | ||||
| 309 | size_t elt_size = sizeof (T); | ||||
| 310 | if (v == NULLnullptr) | ||||
| 311 | return; | ||||
| 312 | |||||
| 313 | if (GATHER_STATISTICS0) | ||||
| 314 | v->m_vecpfx.release_overhead (v, elt_size * v->allocated (), | ||||
| 315 | v->allocated (), true); | ||||
| 316 | ::free (v); | ||||
| 317 | v = NULLnullptr; | ||||
| 318 | } | ||||
| 319 | |||||
| 320 | #if GCC_VERSION(4 * 1000 + 2) >= 4007 | ||||
| 321 | #pragma GCC diagnostic pop | ||||
| 322 | #endif | ||||
| 323 | |||||
| 324 | /* Allocator type for GC vectors. Notice that we need the structure | ||||
| 325 | declaration even if GC is not enabled. */ | ||||
| 326 | |||||
| 327 | struct va_gc | ||||
| 328 | { | ||||
| 329 | /* Use vl_embed as the default layout for GC vectors. Due to GTY | ||||
| 330 | limitations, GC vectors must always be pointers, so it is more | ||||
| 331 | efficient to use a pointer to the vl_embed layout, rather than | ||||
| 332 | using a pointer to a pointer as would be the case with vl_ptr. */ | ||||
| 333 | typedef vl_embed default_layout; | ||||
| 334 | |||||
| 335 | template<typename T, typename A> | ||||
| 336 | static void reserve (vec<T, A, vl_embed> *&, unsigned, bool | ||||
| 337 | CXX_MEM_STAT_INFO); | ||||
| 338 | |||||
| 339 | template<typename T, typename A> | ||||
| 340 | static void release (vec<T, A, vl_embed> *&v); | ||||
| 341 | }; | ||||
| 342 | |||||
| 343 | |||||
| 344 | /* Free GC memory used by V and reset V to NULL. */ | ||||
| 345 | |||||
| 346 | template<typename T, typename A> | ||||
| 347 | inline void | ||||
| 348 | va_gc::release (vec<T, A, vl_embed> *&v) | ||||
| 349 | { | ||||
| 350 | if (v) | ||||
| 351 | ::ggc_free (v); | ||||
| 352 | v = NULLnullptr; | ||||
| 353 | } | ||||
| 354 | |||||
| 355 | |||||
| 356 | /* Allocator for GC memory. Ensure there are at least RESERVE free | ||||
| 357 | slots in V. If EXACT is true, grow exactly, else grow | ||||
| 358 | exponentially. As a special case, if the vector had not been | ||||
| 359 | allocated and RESERVE is 0, no vector will be created. */ | ||||
| 360 | |||||
| 361 | template<typename T, typename A> | ||||
| 362 | void | ||||
| 363 | va_gc::reserve (vec<T, A, vl_embed> *&v, unsigned reserve, bool exact | ||||
| 364 | MEM_STAT_DECL) | ||||
| 365 | { | ||||
| 366 | unsigned alloc | ||||
| 367 | = vec_prefix::calculate_allocation (v
| ||||
| 368 | if (!alloc) | ||||
| 369 | { | ||||
| 370 | ::ggc_free (v); | ||||
| 371 | v = NULLnullptr; | ||||
| 372 | return; | ||||
| 373 | } | ||||
| 374 | |||||
| 375 | /* Calculate the amount of space we want. */ | ||||
| 376 | size_t size = vec<T, A, vl_embed>::embedded_size (alloc); | ||||
| 377 | |||||
| 378 | /* Ask the allocator how much space it will really give us. */ | ||||
| 379 | size = ::ggc_round_alloc_size (size); | ||||
| 380 | |||||
| 381 | /* Adjust the number of slots accordingly. */ | ||||
| 382 | size_t vec_offset = sizeof (vec_prefix); | ||||
| 383 | size_t elt_size = sizeof (T); | ||||
| 384 | alloc = (size - vec_offset) / elt_size; | ||||
| 385 | |||||
| 386 | /* And finally, recalculate the amount of space we ask for. */ | ||||
| 387 | size = vec_offset + alloc * elt_size; | ||||
| 388 | |||||
| 389 | unsigned nelem = v ? v->length () : 0; | ||||
| 390 | v = static_cast <vec<T, A, vl_embed> *> (::ggc_realloc (v, size | ||||
| 391 | PASS_MEM_STAT)); | ||||
| 392 | v->embedded_init (alloc, nelem); | ||||
| 393 | } | ||||
| 394 | |||||
| 395 | |||||
| 396 | /* Allocator type for GC vectors. This is for vectors of types | ||||
| 397 | atomics w.r.t. collection, so allocation and deallocation is | ||||
| 398 | completely inherited from va_gc. */ | ||||
| 399 | struct va_gc_atomic : va_gc | ||||
| 400 | { | ||||
| 401 | }; | ||||
| 402 | |||||
| 403 | |||||
| 404 | /* Generic vector template. Default values for A and L indicate the | ||||
| 405 | most commonly used strategies. | ||||
| 406 | |||||
| 407 | FIXME - Ideally, they would all be vl_ptr to encourage using regular | ||||
| 408 | instances for vectors, but the existing GTY machinery is limited | ||||
| 409 | in that it can only deal with GC objects that are pointers | ||||
| 410 | themselves. | ||||
| 411 | |||||
| 412 | This means that vector operations that need to deal with | ||||
| 413 | potentially NULL pointers, must be provided as free | ||||
| 414 | functions (see the vec_safe_* functions above). */ | ||||
| 415 | template<typename T, | ||||
| 416 | typename A = va_heap, | ||||
| 417 | typename L = typename A::default_layout> | ||||
| 418 | struct GTY((user)) vec | ||||
| 419 | { | ||||
| 420 | }; | ||||
| 421 | |||||
| 422 | /* Allow C++11 range-based 'for' to work directly on vec<T>*. */ | ||||
| 423 | template<typename T, typename A, typename L> | ||||
| 424 | T* begin (vec<T,A,L> *v) { return v ? v->begin () : nullptr; } | ||||
| 425 | template<typename T, typename A, typename L> | ||||
| 426 | T* end (vec<T,A,L> *v) { return v ? v->end () : nullptr; } | ||||
| 427 | template<typename T, typename A, typename L> | ||||
| 428 | const T* begin (const vec<T,A,L> *v) { return v ? v->begin () : nullptr; } | ||||
| 429 | template<typename T, typename A, typename L> | ||||
| 430 | const T* end (const vec<T,A,L> *v) { return v ? v->end () : nullptr; } | ||||
| 431 | |||||
| 432 | /* Generic vec<> debug helpers. | ||||
| 433 | |||||
| 434 | These need to be instantiated for each vec<TYPE> used throughout | ||||
| 435 | the compiler like this: | ||||
| 436 | |||||
| 437 | DEFINE_DEBUG_VEC (TYPE) | ||||
| 438 | |||||
| 439 | The reason we have a debug_helper() is because GDB can't | ||||
| 440 | disambiguate a plain call to debug(some_vec), and it must be called | ||||
| 441 | like debug<TYPE>(some_vec). */ | ||||
| 442 | |||||
| 443 | template<typename T> | ||||
| 444 | void | ||||
| 445 | debug_helper (vec<T> &ref) | ||||
| 446 | { | ||||
| 447 | unsigned i; | ||||
| 448 | for (i = 0; i < ref.length (); ++i) | ||||
| 449 | { | ||||
| 450 | fprintf (stderrstderr, "[%d] = ", i); | ||||
| 451 | debug_slim (ref[i]); | ||||
| 452 | fputc ('\n', stderrstderr); | ||||
| 453 | } | ||||
| 454 | } | ||||
| 455 | |||||
| 456 | /* We need a separate va_gc variant here because default template | ||||
| 457 | argument for functions cannot be used in c++-98. Once this | ||||
| 458 | restriction is removed, those variant should be folded with the | ||||
| 459 | above debug_helper. */ | ||||
| 460 | |||||
| 461 | template<typename T> | ||||
| 462 | void | ||||
| 463 | debug_helper (vec<T, va_gc> &ref) | ||||
| 464 | { | ||||
| 465 | unsigned i; | ||||
| 466 | for (i = 0; i < ref.length (); ++i) | ||||
| 467 | { | ||||
| 468 | fprintf (stderrstderr, "[%d] = ", i); | ||||
| 469 | debug_slim (ref[i]); | ||||
| 470 | fputc ('\n', stderrstderr); | ||||
| 471 | } | ||||
| 472 | } | ||||
| 473 | |||||
| 474 | /* Macro to define debug(vec<T>) and debug(vec<T, va_gc>) helper | ||||
| 475 | functions for a type T. */ | ||||
| 476 | |||||
| 477 | #define DEFINE_DEBUG_VEC(T)template void debug_helper (vec<T> &); template void debug_helper (vec<T, va_gc> &); __attribute__ ((__used__ )) void debug (vec<T> &ref) { debug_helper <T> (ref); } __attribute__ ((__used__)) void debug (vec<T> *ptr) { if (ptr) debug (*ptr); else fprintf (stderr, "<nil>\n" ); } __attribute__ ((__used__)) void debug (vec<T, va_gc> &ref) { debug_helper <T> (ref); } __attribute__ (( __used__)) void debug (vec<T, va_gc> *ptr) { if (ptr) debug (*ptr); else fprintf (stderr, "<nil>\n"); } \ | ||||
| 478 | template void debug_helper (vec<T> &); \ | ||||
| 479 | template void debug_helper (vec<T, va_gc> &); \ | ||||
| 480 | /* Define the vec<T> debug functions. */ \ | ||||
| 481 | DEBUG_FUNCTION__attribute__ ((__used__)) void \ | ||||
| 482 | debug (vec<T> &ref) \ | ||||
| 483 | { \ | ||||
| 484 | debug_helper <T> (ref); \ | ||||
| 485 | } \ | ||||
| 486 | DEBUG_FUNCTION__attribute__ ((__used__)) void \ | ||||
| 487 | debug (vec<T> *ptr) \ | ||||
| 488 | { \ | ||||
| 489 | if (ptr) \ | ||||
| 490 | debug (*ptr); \ | ||||
| 491 | else \ | ||||
| 492 | fprintf (stderrstderr, "<nil>\n"); \ | ||||
| 493 | } \ | ||||
| 494 | /* Define the vec<T, va_gc> debug functions. */ \ | ||||
| 495 | DEBUG_FUNCTION__attribute__ ((__used__)) void \ | ||||
| 496 | debug (vec<T, va_gc> &ref) \ | ||||
| 497 | { \ | ||||
| 498 | debug_helper <T> (ref); \ | ||||
| 499 | } \ | ||||
| 500 | DEBUG_FUNCTION__attribute__ ((__used__)) void \ | ||||
| 501 | debug (vec<T, va_gc> *ptr) \ | ||||
| 502 | { \ | ||||
| 503 | if (ptr) \ | ||||
| 504 | debug (*ptr); \ | ||||
| 505 | else \ | ||||
| 506 | fprintf (stderrstderr, "<nil>\n"); \ | ||||
| 507 | } | ||||
| 508 | |||||
| 509 | /* Default-construct N elements in DST. */ | ||||
| 510 | |||||
| 511 | template <typename T> | ||||
| 512 | inline void | ||||
| 513 | vec_default_construct (T *dst, unsigned n) | ||||
| 514 | { | ||||
| 515 | #ifdef BROKEN_VALUE_INITIALIZATION | ||||
| 516 | /* Versions of GCC before 4.4 sometimes leave certain objects | ||||
| 517 | uninitialized when value initialized, though if the type has | ||||
| 518 | user defined default ctor, that ctor is invoked. As a workaround | ||||
| 519 | perform clearing first and then the value initialization, which | ||||
| 520 | fixes the case when value initialization doesn't initialize due to | ||||
| 521 | the bugs and should initialize to all zeros, but still allows | ||||
| 522 | vectors for types with user defined default ctor that initializes | ||||
| 523 | some or all elements to non-zero. If T has no user defined | ||||
| 524 | default ctor and some non-static data members have user defined | ||||
| 525 | default ctors that initialize to non-zero the workaround will | ||||
| 526 | still not work properly; in that case we just need to provide | ||||
| 527 | user defined default ctor. */ | ||||
| 528 | memset (dst, '\0', sizeof (T) * n); | ||||
| 529 | #endif | ||||
| 530 | for ( ; n; ++dst, --n) | ||||
| 531 | ::new (static_cast<void*>(dst)) T (); | ||||
| 532 | } | ||||
| 533 | |||||
| 534 | /* Copy-construct N elements in DST from *SRC. */ | ||||
| 535 | |||||
| 536 | template <typename T> | ||||
| 537 | inline void | ||||
| 538 | vec_copy_construct (T *dst, const T *src, unsigned n) | ||||
| 539 | { | ||||
| 540 | for ( ; n; ++dst, ++src, --n) | ||||
| 541 | ::new (static_cast<void*>(dst)) T (*src); | ||||
| 542 | } | ||||
| 543 | |||||
| 544 | /* Type to provide zero-initialized values for vec<T, A, L>. This is | ||||
| 545 | used to provide nil initializers for vec instances. Since vec must | ||||
| 546 | be a trivially copyable type that can be copied by memcpy and zeroed | ||||
| 547 | out by memset, it must have defaulted default and copy ctor and copy | ||||
| 548 | assignment. To initialize a vec either use value initialization | ||||
| 549 | (e.g., vec() or vec v{ };) or assign it the value vNULL. This isn't | ||||
| 550 | needed for file-scope and function-local static vectors, which are | ||||
| 551 | zero-initialized by default. */ | ||||
| 552 | struct vnull { }; | ||||
| 553 | constexpr vnull vNULL{ }; | ||||
| 554 | |||||
| 555 | |||||
| 556 | /* Embeddable vector. These vectors are suitable to be embedded | ||||
| 557 | in other data structures so that they can be pre-allocated in a | ||||
| 558 | contiguous memory block. | ||||
| 559 | |||||
| 560 | Embeddable vectors are implemented using the trailing array idiom, | ||||
| 561 | thus they are not resizeable without changing the address of the | ||||
| 562 | vector object itself. This means you cannot have variables or | ||||
| 563 | fields of embeddable vector type -- always use a pointer to a | ||||
| 564 | vector. The one exception is the final field of a structure, which | ||||
| 565 | could be a vector type. | ||||
| 566 | |||||
| 567 | You will have to use the embedded_size & embedded_init calls to | ||||
| 568 | create such objects, and they will not be resizeable (so the 'safe' | ||||
| 569 | allocation variants are not available). | ||||
| 570 | |||||
| 571 | Properties: | ||||
| 572 | |||||
| 573 | - The whole vector and control data are allocated in a single | ||||
| 574 | contiguous block. It uses the trailing-vector idiom, so | ||||
| 575 | allocation must reserve enough space for all the elements | ||||
| 576 | in the vector plus its control data. | ||||
| 577 | - The vector cannot be re-allocated. | ||||
| 578 | - The vector cannot grow nor shrink. | ||||
| 579 | - No indirections needed for access/manipulation. | ||||
| 580 | - It requires 2 words of storage (prior to vector allocation). */ | ||||
| 581 | |||||
| 582 | template<typename T, typename A> | ||||
| 583 | struct GTY((user)) vec<T, A, vl_embed> | ||||
| 584 | { | ||||
| 585 | public: | ||||
| 586 | unsigned allocated (void) const { return m_vecpfx.m_alloc; } | ||||
| 587 | unsigned length (void) const { return m_vecpfx.m_num; } | ||||
| 588 | bool is_empty (void) const { return m_vecpfx.m_num == 0; } | ||||
| 589 | T *address (void) { return reinterpret_cast <T *> (this + 1); } | ||||
| 590 | const T *address (void) const | ||||
| 591 | { return reinterpret_cast <const T *> (this + 1); } | ||||
| 592 | T *begin () { return address (); } | ||||
| 593 | const T *begin () const { return address (); } | ||||
| 594 | T *end () { return address () + length (); } | ||||
| 595 | const T *end () const { return address () + length (); } | ||||
| 596 | const T &operator[] (unsigned) const; | ||||
| 597 | T &operator[] (unsigned); | ||||
| 598 | T &last (void); | ||||
| 599 | bool space (unsigned) const; | ||||
| 600 | bool iterate (unsigned, T *) const; | ||||
| 601 | bool iterate (unsigned, T **) const; | ||||
| 602 | vec *copy (ALONE_CXX_MEM_STAT_INFO) const; | ||||
| 603 | void splice (const vec &); | ||||
| 604 | void splice (const vec *src); | ||||
| 605 | T *quick_push (const T &); | ||||
| 606 | T &pop (void); | ||||
| 607 | void truncate (unsigned); | ||||
| 608 | void quick_insert (unsigned, const T &); | ||||
| 609 | void ordered_remove (unsigned); | ||||
| 610 | void unordered_remove (unsigned); | ||||
| 611 | void block_remove (unsigned, unsigned); | ||||
| 612 | void qsort (int (*) (const void *, const void *))qsort (int (*) (const void *, const void *)); | ||||
| 613 | void sort (int (*) (const void *, const void *, void *), void *); | ||||
| 614 | void stablesort (int (*) (const void *, const void *, void *), void *); | ||||
| 615 | T *bsearch (const void *key, int (*compar) (const void *, const void *)); | ||||
| 616 | T *bsearch (const void *key, | ||||
| 617 | int (*compar)(const void *, const void *, void *), void *); | ||||
| 618 | unsigned lower_bound (const T &, bool (*) (const T &, const T &)) const; | ||||
| 619 | bool contains (const T &search) const; | ||||
| 620 | static size_t embedded_size (unsigned); | ||||
| 621 | void embedded_init (unsigned, unsigned = 0, unsigned = 0); | ||||
| 622 | void quick_grow (unsigned len); | ||||
| 623 | void quick_grow_cleared (unsigned len); | ||||
| 624 | |||||
| 625 | /* vec class can access our internal data and functions. */ | ||||
| 626 | template <typename, typename, typename> friend struct vec; | ||||
| 627 | |||||
| 628 | /* The allocator types also need access to our internals. */ | ||||
| 629 | friend struct va_gc; | ||||
| 630 | friend struct va_gc_atomic; | ||||
| 631 | friend struct va_heap; | ||||
| 632 | |||||
| 633 | /* FIXME - This field should be private, but we need to cater to | ||||
| 634 | compilers that have stricter notions of PODness for types. */ | ||||
| 635 | /* Align m_vecpfx to simplify address (). */ | ||||
| 636 | alignas (T) alignas (vec_prefix) vec_prefix m_vecpfx; | ||||
| 637 | }; | ||||
| 638 | |||||
| 639 | |||||
| 640 | /* Convenience wrapper functions to use when dealing with pointers to | ||||
| 641 | embedded vectors. Some functionality for these vectors must be | ||||
| 642 | provided via free functions for these reasons: | ||||
| 643 | |||||
| 644 | 1- The pointer may be NULL (e.g., before initial allocation). | ||||
| 645 | |||||
| 646 | 2- When the vector needs to grow, it must be reallocated, so | ||||
| 647 | the pointer will change its value. | ||||
| 648 | |||||
| 649 | Because of limitations with the current GC machinery, all vectors | ||||
| 650 | in GC memory *must* be pointers. */ | ||||
| 651 | |||||
| 652 | |||||
| 653 | /* If V contains no room for NELEMS elements, return false. Otherwise, | ||||
| 654 | return true. */ | ||||
| 655 | template<typename T, typename A> | ||||
| 656 | inline bool | ||||
| 657 | vec_safe_space (const vec<T, A, vl_embed> *v, unsigned nelems) | ||||
| 658 | { | ||||
| 659 | return v ? v->space (nelems) : nelems == 0; | ||||
| 660 | } | ||||
| 661 | |||||
| 662 | |||||
| 663 | /* If V is NULL, return 0. Otherwise, return V->length(). */ | ||||
| 664 | template<typename T, typename A> | ||||
| 665 | inline unsigned | ||||
| 666 | vec_safe_length (const vec<T, A, vl_embed> *v) | ||||
| 667 | { | ||||
| 668 | return v ? v->length () : 0; | ||||
| 669 | } | ||||
| 670 | |||||
| 671 | |||||
| 672 | /* If V is NULL, return NULL. Otherwise, return V->address(). */ | ||||
| 673 | template<typename T, typename A> | ||||
| 674 | inline T * | ||||
| 675 | vec_safe_address (vec<T, A, vl_embed> *v) | ||||
| 676 | { | ||||
| 677 | return v ? v->address () : NULLnullptr; | ||||
| 678 | } | ||||
| 679 | |||||
| 680 | |||||
| 681 | /* If V is NULL, return true. Otherwise, return V->is_empty(). */ | ||||
| 682 | template<typename T, typename A> | ||||
| 683 | inline bool | ||||
| 684 | vec_safe_is_empty (vec<T, A, vl_embed> *v) | ||||
| 685 | { | ||||
| 686 | return v ? v->is_empty () : true; | ||||
| 687 | } | ||||
| 688 | |||||
| 689 | /* If V does not have space for NELEMS elements, call | ||||
| 690 | V->reserve(NELEMS, EXACT). */ | ||||
| 691 | template<typename T, typename A> | ||||
| 692 | inline bool | ||||
| 693 | vec_safe_reserve (vec<T, A, vl_embed> *&v, unsigned nelems, bool exact = false | ||||
| 694 | CXX_MEM_STAT_INFO) | ||||
| 695 | { | ||||
| 696 | bool extend = nelems ? !vec_safe_space (v, nelems) : false; | ||||
| 697 | if (extend
| ||||
| 698 | A::reserve (v, nelems, exact PASS_MEM_STAT); | ||||
| 699 | return extend; | ||||
| 700 | } | ||||
| 701 | |||||
| 702 | template<typename T, typename A> | ||||
| 703 | inline bool | ||||
| 704 | vec_safe_reserve_exact (vec<T, A, vl_embed> *&v, unsigned nelems | ||||
| 705 | CXX_MEM_STAT_INFO) | ||||
| 706 | { | ||||
| 707 | return vec_safe_reserve (v, nelems, true PASS_MEM_STAT); | ||||
| 708 | } | ||||
| 709 | |||||
| 710 | |||||
| 711 | /* Allocate GC memory for V with space for NELEMS slots. If NELEMS | ||||
| 712 | is 0, V is initialized to NULL. */ | ||||
| 713 | |||||
| 714 | template<typename T, typename A> | ||||
| 715 | inline void | ||||
| 716 | vec_alloc (vec<T, A, vl_embed> *&v, unsigned nelems CXX_MEM_STAT_INFO) | ||||
| 717 | { | ||||
| 718 | v = NULLnullptr; | ||||
| 719 | vec_safe_reserve (v, nelems, false PASS_MEM_STAT); | ||||
| 720 | } | ||||
| 721 | |||||
| 722 | |||||
| 723 | /* Free the GC memory allocated by vector V and set it to NULL. */ | ||||
| 724 | |||||
| 725 | template<typename T, typename A> | ||||
| 726 | inline void | ||||
| 727 | vec_free (vec<T, A, vl_embed> *&v) | ||||
| 728 | { | ||||
| 729 | A::release (v); | ||||
| 730 | } | ||||
| 731 | |||||
| 732 | |||||
| 733 | /* Grow V to length LEN. Allocate it, if necessary. */ | ||||
| 734 | template<typename T, typename A> | ||||
| 735 | inline void | ||||
| 736 | vec_safe_grow (vec<T, A, vl_embed> *&v, unsigned len, | ||||
| 737 | bool exact = false CXX_MEM_STAT_INFO) | ||||
| 738 | { | ||||
| 739 | unsigned oldlen = vec_safe_length (v); | ||||
| 740 | gcc_checking_assert (len >= oldlen)((void)(!(len >= oldlen) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 740, __FUNCTION__), 0 : 0)); | ||||
| 741 | vec_safe_reserve (v, len - oldlen, exact PASS_MEM_STAT); | ||||
| 742 | v->quick_grow (len); | ||||
| 743 | } | ||||
| 744 | |||||
| 745 | |||||
| 746 | /* If V is NULL, allocate it. Call V->safe_grow_cleared(LEN). */ | ||||
| 747 | template<typename T, typename A> | ||||
| 748 | inline void | ||||
| 749 | vec_safe_grow_cleared (vec<T, A, vl_embed> *&v, unsigned len, | ||||
| 750 | bool exact = false CXX_MEM_STAT_INFO) | ||||
| 751 | { | ||||
| 752 | unsigned oldlen = vec_safe_length (v); | ||||
| 753 | vec_safe_grow (v, len, exact PASS_MEM_STAT); | ||||
| 754 | vec_default_construct (v->address () + oldlen, len - oldlen); | ||||
| 755 | } | ||||
| 756 | |||||
| 757 | |||||
| 758 | /* Assume V is not NULL. */ | ||||
| 759 | |||||
| 760 | template<typename T> | ||||
| 761 | inline void | ||||
| 762 | vec_safe_grow_cleared (vec<T, va_heap, vl_ptr> *&v, | ||||
| 763 | unsigned len, bool exact = false CXX_MEM_STAT_INFO) | ||||
| 764 | { | ||||
| 765 | v->safe_grow_cleared (len, exact PASS_MEM_STAT); | ||||
| 766 | } | ||||
| 767 | |||||
| 768 | /* If V does not have space for NELEMS elements, call | ||||
| 769 | V->reserve(NELEMS, EXACT). */ | ||||
| 770 | |||||
| 771 | template<typename T> | ||||
| 772 | inline bool | ||||
| 773 | vec_safe_reserve (vec<T, va_heap, vl_ptr> *&v, unsigned nelems, bool exact = false | ||||
| 774 | CXX_MEM_STAT_INFO) | ||||
| 775 | { | ||||
| 776 | return v->reserve (nelems, exact); | ||||
| 777 | } | ||||
| 778 | |||||
| 779 | |||||
| 780 | /* If V is NULL return false, otherwise return V->iterate(IX, PTR). */ | ||||
| 781 | template<typename T, typename A> | ||||
| 782 | inline bool | ||||
| 783 | vec_safe_iterate (const vec<T, A, vl_embed> *v, unsigned ix, T **ptr) | ||||
| 784 | { | ||||
| 785 | if (v) | ||||
| 786 | return v->iterate (ix, ptr); | ||||
| 787 | else | ||||
| 788 | { | ||||
| 789 | *ptr = 0; | ||||
| 790 | return false; | ||||
| 791 | } | ||||
| 792 | } | ||||
| 793 | |||||
| 794 | template<typename T, typename A> | ||||
| 795 | inline bool | ||||
| 796 | vec_safe_iterate (const vec<T, A, vl_embed> *v, unsigned ix, T *ptr) | ||||
| 797 | { | ||||
| 798 | if (v) | ||||
| 799 | return v->iterate (ix, ptr); | ||||
| 800 | else | ||||
| 801 | { | ||||
| 802 | *ptr = 0; | ||||
| 803 | return false; | ||||
| 804 | } | ||||
| 805 | } | ||||
| 806 | |||||
| 807 | |||||
| 808 | /* If V has no room for one more element, reallocate it. Then call | ||||
| 809 | V->quick_push(OBJ). */ | ||||
| 810 | template<typename T, typename A> | ||||
| 811 | inline T * | ||||
| 812 | vec_safe_push (vec<T, A, vl_embed> *&v, const T &obj CXX_MEM_STAT_INFO) | ||||
| 813 | { | ||||
| 814 | vec_safe_reserve (v, 1, false PASS_MEM_STAT); | ||||
| 815 | return v->quick_push (obj); | ||||
| 816 | } | ||||
| 817 | |||||
| 818 | |||||
| 819 | /* if V has no room for one more element, reallocate it. Then call | ||||
| 820 | V->quick_insert(IX, OBJ). */ | ||||
| 821 | template<typename T, typename A> | ||||
| 822 | inline void | ||||
| 823 | vec_safe_insert (vec<T, A, vl_embed> *&v, unsigned ix, const T &obj | ||||
| 824 | CXX_MEM_STAT_INFO) | ||||
| 825 | { | ||||
| 826 | vec_safe_reserve (v, 1, false PASS_MEM_STAT); | ||||
| 827 | v->quick_insert (ix, obj); | ||||
| 828 | } | ||||
| 829 | |||||
| 830 | |||||
| 831 | /* If V is NULL, do nothing. Otherwise, call V->truncate(SIZE). */ | ||||
| 832 | template<typename T, typename A> | ||||
| 833 | inline void | ||||
| 834 | vec_safe_truncate (vec<T, A, vl_embed> *v, unsigned size) | ||||
| 835 | { | ||||
| 836 | if (v) | ||||
| 837 | v->truncate (size); | ||||
| 838 | } | ||||
| 839 | |||||
| 840 | |||||
| 841 | /* If SRC is not NULL, return a pointer to a copy of it. */ | ||||
| 842 | template<typename T, typename A> | ||||
| 843 | inline vec<T, A, vl_embed> * | ||||
| 844 | vec_safe_copy (vec<T, A, vl_embed> *src CXX_MEM_STAT_INFO) | ||||
| 845 | { | ||||
| 846 | return src ? src->copy (ALONE_PASS_MEM_STAT) : NULLnullptr; | ||||
| 847 | } | ||||
| 848 | |||||
| 849 | /* Copy the elements from SRC to the end of DST as if by memcpy. | ||||
| 850 | Reallocate DST, if necessary. */ | ||||
| 851 | template<typename T, typename A> | ||||
| 852 | inline void | ||||
| 853 | vec_safe_splice (vec<T, A, vl_embed> *&dst, const vec<T, A, vl_embed> *src | ||||
| 854 | CXX_MEM_STAT_INFO) | ||||
| 855 | { | ||||
| 856 | unsigned src_len = vec_safe_length (src); | ||||
| 857 | if (src_len) | ||||
| 858 | { | ||||
| 859 | vec_safe_reserve_exact (dst, vec_safe_length (dst) + src_len | ||||
| 860 | PASS_MEM_STAT); | ||||
| 861 | dst->splice (*src); | ||||
| 862 | } | ||||
| 863 | } | ||||
| 864 | |||||
| 865 | /* Return true if SEARCH is an element of V. Note that this is O(N) in the | ||||
| 866 | size of the vector and so should be used with care. */ | ||||
| 867 | |||||
| 868 | template<typename T, typename A> | ||||
| 869 | inline bool | ||||
| 870 | vec_safe_contains (vec<T, A, vl_embed> *v, const T &search) | ||||
| 871 | { | ||||
| 872 | return v ? v->contains (search) : false; | ||||
| 873 | } | ||||
| 874 | |||||
| 875 | /* Index into vector. Return the IX'th element. IX must be in the | ||||
| 876 | domain of the vector. */ | ||||
| 877 | |||||
| 878 | template<typename T, typename A> | ||||
| 879 | inline const T & | ||||
| 880 | vec<T, A, vl_embed>::operator[] (unsigned ix) const | ||||
| 881 | { | ||||
| 882 | gcc_checking_assert (ix < m_vecpfx.m_num)((void)(!(ix < m_vecpfx.m_num) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 882, __FUNCTION__), 0 : 0)); | ||||
| 883 | return address ()[ix]; | ||||
| 884 | } | ||||
| 885 | |||||
| 886 | template<typename T, typename A> | ||||
| 887 | inline T & | ||||
| 888 | vec<T, A, vl_embed>::operator[] (unsigned ix) | ||||
| 889 | { | ||||
| 890 | gcc_checking_assert (ix < m_vecpfx.m_num)((void)(!(ix < m_vecpfx.m_num) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 890, __FUNCTION__), 0 : 0)); | ||||
| 891 | return address ()[ix]; | ||||
| 892 | } | ||||
| 893 | |||||
| 894 | |||||
| 895 | /* Get the final element of the vector, which must not be empty. */ | ||||
| 896 | |||||
| 897 | template<typename T, typename A> | ||||
| 898 | inline T & | ||||
| 899 | vec<T, A, vl_embed>::last (void) | ||||
| 900 | { | ||||
| 901 | gcc_checking_assert (m_vecpfx.m_num > 0)((void)(!(m_vecpfx.m_num > 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 901, __FUNCTION__), 0 : 0)); | ||||
| 902 | return (*this)[m_vecpfx.m_num - 1]; | ||||
| 903 | } | ||||
| 904 | |||||
| 905 | |||||
| 906 | /* If this vector has space for NELEMS additional entries, return | ||||
| 907 | true. You usually only need to use this if you are doing your | ||||
| 908 | own vector reallocation, for instance on an embedded vector. This | ||||
| 909 | returns true in exactly the same circumstances that vec::reserve | ||||
| 910 | will. */ | ||||
| 911 | |||||
| 912 | template<typename T, typename A> | ||||
| 913 | inline bool | ||||
| 914 | vec<T, A, vl_embed>::space (unsigned nelems) const | ||||
| 915 | { | ||||
| 916 | return m_vecpfx.m_alloc - m_vecpfx.m_num >= nelems; | ||||
| 917 | } | ||||
| 918 | |||||
| 919 | |||||
| 920 | /* Return iteration condition and update *PTR to (a copy of) the IX'th | ||||
| 921 | element of this vector. Use this to iterate over the elements of a | ||||
| 922 | vector as follows, | ||||
| 923 | |||||
| 924 | for (ix = 0; v->iterate (ix, &val); ix++) | ||||
| 925 | continue; */ | ||||
| 926 | |||||
| 927 | template<typename T, typename A> | ||||
| 928 | inline bool | ||||
| 929 | vec<T, A, vl_embed>::iterate (unsigned ix, T *ptr) const | ||||
| 930 | { | ||||
| 931 | if (ix < m_vecpfx.m_num) | ||||
| 932 | { | ||||
| 933 | *ptr = address ()[ix]; | ||||
| 934 | return true; | ||||
| 935 | } | ||||
| 936 | else | ||||
| 937 | { | ||||
| 938 | *ptr = 0; | ||||
| 939 | return false; | ||||
| 940 | } | ||||
| 941 | } | ||||
| 942 | |||||
| 943 | |||||
| 944 | /* Return iteration condition and update *PTR to point to the | ||||
| 945 | IX'th element of this vector. Use this to iterate over the | ||||
| 946 | elements of a vector as follows, | ||||
| 947 | |||||
| 948 | for (ix = 0; v->iterate (ix, &ptr); ix++) | ||||
| 949 | continue; | ||||
| 950 | |||||
| 951 | This variant is for vectors of objects. */ | ||||
| 952 | |||||
| 953 | template<typename T, typename A> | ||||
| 954 | inline bool | ||||
| 955 | vec<T, A, vl_embed>::iterate (unsigned ix, T **ptr) const | ||||
| 956 | { | ||||
| 957 | if (ix < m_vecpfx.m_num) | ||||
| 958 | { | ||||
| 959 | *ptr = CONST_CAST (T *, &address ()[ix])(const_cast<T *> ((&address ()[ix]))); | ||||
| 960 | return true; | ||||
| 961 | } | ||||
| 962 | else | ||||
| 963 | { | ||||
| 964 | *ptr = 0; | ||||
| 965 | return false; | ||||
| 966 | } | ||||
| 967 | } | ||||
| 968 | |||||
| 969 | |||||
| 970 | /* Return a pointer to a copy of this vector. */ | ||||
| 971 | |||||
| 972 | template<typename T, typename A> | ||||
| 973 | inline vec<T, A, vl_embed> * | ||||
| 974 | vec<T, A, vl_embed>::copy (ALONE_MEM_STAT_DECLvoid) const | ||||
| 975 | { | ||||
| 976 | vec<T, A, vl_embed> *new_vec = NULLnullptr; | ||||
| 977 | unsigned len = length (); | ||||
| 978 | if (len) | ||||
| 979 | { | ||||
| 980 | vec_alloc (new_vec, len PASS_MEM_STAT); | ||||
| 981 | new_vec->embedded_init (len, len); | ||||
| 982 | vec_copy_construct (new_vec->address (), address (), len); | ||||
| 983 | } | ||||
| 984 | return new_vec; | ||||
| 985 | } | ||||
| 986 | |||||
| 987 | |||||
| 988 | /* Copy the elements from SRC to the end of this vector as if by memcpy. | ||||
| 989 | The vector must have sufficient headroom available. */ | ||||
| 990 | |||||
| 991 | template<typename T, typename A> | ||||
| 992 | inline void | ||||
| 993 | vec<T, A, vl_embed>::splice (const vec<T, A, vl_embed> &src) | ||||
| 994 | { | ||||
| 995 | unsigned len = src.length (); | ||||
| 996 | if (len) | ||||
| 997 | { | ||||
| 998 | gcc_checking_assert (space (len))((void)(!(space (len)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 998, __FUNCTION__), 0 : 0)); | ||||
| 999 | vec_copy_construct (end (), src.address (), len); | ||||
| 1000 | m_vecpfx.m_num += len; | ||||
| 1001 | } | ||||
| 1002 | } | ||||
| 1003 | |||||
| 1004 | template<typename T, typename A> | ||||
| 1005 | inline void | ||||
| 1006 | vec<T, A, vl_embed>::splice (const vec<T, A, vl_embed> *src) | ||||
| 1007 | { | ||||
| 1008 | if (src) | ||||
| 1009 | splice (*src); | ||||
| 1010 | } | ||||
| 1011 | |||||
| 1012 | |||||
| 1013 | /* Push OBJ (a new element) onto the end of the vector. There must be | ||||
| 1014 | sufficient space in the vector. Return a pointer to the slot | ||||
| 1015 | where OBJ was inserted. */ | ||||
| 1016 | |||||
| 1017 | template<typename T, typename A> | ||||
| 1018 | inline T * | ||||
| 1019 | vec<T, A, vl_embed>::quick_push (const T &obj) | ||||
| 1020 | { | ||||
| 1021 | gcc_checking_assert (space (1))((void)(!(space (1)) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1021, __FUNCTION__), 0 : 0)); | ||||
| 1022 | T *slot = &address ()[m_vecpfx.m_num++]; | ||||
| 1023 | *slot = obj; | ||||
| 1024 | return slot; | ||||
| 1025 | } | ||||
| 1026 | |||||
| 1027 | |||||
| 1028 | /* Pop and return the last element off the end of the vector. */ | ||||
| 1029 | |||||
| 1030 | template<typename T, typename A> | ||||
| 1031 | inline T & | ||||
| 1032 | vec<T, A, vl_embed>::pop (void) | ||||
| 1033 | { | ||||
| 1034 | gcc_checking_assert (length () > 0)((void)(!(length () > 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1034, __FUNCTION__), 0 : 0)); | ||||
| 1035 | return address ()[--m_vecpfx.m_num]; | ||||
| 1036 | } | ||||
| 1037 | |||||
| 1038 | |||||
| 1039 | /* Set the length of the vector to SIZE. The new length must be less | ||||
| 1040 | than or equal to the current length. This is an O(1) operation. */ | ||||
| 1041 | |||||
| 1042 | template<typename T, typename A> | ||||
| 1043 | inline void | ||||
| 1044 | vec<T, A, vl_embed>::truncate (unsigned size) | ||||
| 1045 | { | ||||
| 1046 | gcc_checking_assert (length () >= size)((void)(!(length () >= size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1046, __FUNCTION__), 0 : 0)); | ||||
| 1047 | m_vecpfx.m_num = size; | ||||
| 1048 | } | ||||
| 1049 | |||||
| 1050 | |||||
| 1051 | /* Insert an element, OBJ, at the IXth position of this vector. There | ||||
| 1052 | must be sufficient space. */ | ||||
| 1053 | |||||
| 1054 | template<typename T, typename A> | ||||
| 1055 | inline void | ||||
| 1056 | vec<T, A, vl_embed>::quick_insert (unsigned ix, const T &obj) | ||||
| 1057 | { | ||||
| 1058 | gcc_checking_assert (length () < allocated ())((void)(!(length () < allocated ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1058, __FUNCTION__), 0 : 0)); | ||||
| 1059 | gcc_checking_assert (ix <= length ())((void)(!(ix <= length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1059, __FUNCTION__), 0 : 0)); | ||||
| 1060 | T *slot = &address ()[ix]; | ||||
| 1061 | memmove (slot + 1, slot, (m_vecpfx.m_num++ - ix) * sizeof (T)); | ||||
| 1062 | *slot = obj; | ||||
| 1063 | } | ||||
| 1064 | |||||
| 1065 | |||||
| 1066 | /* Remove an element from the IXth position of this vector. Ordering of | ||||
| 1067 | remaining elements is preserved. This is an O(N) operation due to | ||||
| 1068 | memmove. */ | ||||
| 1069 | |||||
| 1070 | template<typename T, typename A> | ||||
| 1071 | inline void | ||||
| 1072 | vec<T, A, vl_embed>::ordered_remove (unsigned ix) | ||||
| 1073 | { | ||||
| 1074 | gcc_checking_assert (ix < length ())((void)(!(ix < length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1074, __FUNCTION__), 0 : 0)); | ||||
| 1075 | T *slot = &address ()[ix]; | ||||
| 1076 | memmove (slot, slot + 1, (--m_vecpfx.m_num - ix) * sizeof (T)); | ||||
| 1077 | } | ||||
| 1078 | |||||
| 1079 | |||||
| 1080 | /* Remove elements in [START, END) from VEC for which COND holds. Ordering of | ||||
| 1081 | remaining elements is preserved. This is an O(N) operation. */ | ||||
| 1082 | |||||
| 1083 | #define VEC_ORDERED_REMOVE_IF_FROM_TO(vec, read_index, write_index, \{ ((void)(!((end) <= (vec).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1084, __FUNCTION__), 0 : 0)); for (read_index = write_index = (start); read_index < (end); ++read_index) { elem_ptr = &(vec)[read_index]; bool remove_p = (cond); if (remove_p ) continue; if (read_index != write_index) (vec)[write_index] = (vec)[read_index]; write_index++; } if (read_index - write_index > 0) (vec).block_remove (write_index, read_index - write_index ); } | ||||
| 1084 | elem_ptr, start, end, cond){ ((void)(!((end) <= (vec).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1084, __FUNCTION__), 0 : 0)); for (read_index = write_index = (start); read_index < (end); ++read_index) { elem_ptr = &(vec)[read_index]; bool remove_p = (cond); if (remove_p ) continue; if (read_index != write_index) (vec)[write_index] = (vec)[read_index]; write_index++; } if (read_index - write_index > 0) (vec).block_remove (write_index, read_index - write_index ); } \ | ||||
| 1085 | { \ | ||||
| 1086 | gcc_assert ((end) <= (vec).length ())((void)(!((end) <= (vec).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1086, __FUNCTION__), 0 : 0)); \ | ||||
| 1087 | for (read_index = write_index = (start); read_index < (end); \ | ||||
| 1088 | ++read_index) \ | ||||
| 1089 | { \ | ||||
| 1090 | elem_ptr = &(vec)[read_index]; \ | ||||
| 1091 | bool remove_p = (cond); \ | ||||
| 1092 | if (remove_p) \ | ||||
| 1093 | continue; \ | ||||
| 1094 | \ | ||||
| 1095 | if (read_index != write_index) \ | ||||
| 1096 | (vec)[write_index] = (vec)[read_index]; \ | ||||
| 1097 | \ | ||||
| 1098 | write_index++; \ | ||||
| 1099 | } \ | ||||
| 1100 | \ | ||||
| 1101 | if (read_index - write_index > 0) \ | ||||
| 1102 | (vec).block_remove (write_index, read_index - write_index); \ | ||||
| 1103 | } | ||||
| 1104 | |||||
| 1105 | |||||
| 1106 | /* Remove elements from VEC for which COND holds. Ordering of remaining | ||||
| 1107 | elements is preserved. This is an O(N) operation. */ | ||||
| 1108 | |||||
| 1109 | #define VEC_ORDERED_REMOVE_IF(vec, read_index, write_index, elem_ptr, \{ ((void)(!(((vec).length ()) <= ((vec)).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1110, __FUNCTION__), 0 : 0)); for (read_index = write_index = (0); read_index < ((vec).length ()); ++read_index) { elem_ptr = &((vec))[read_index]; bool remove_p = ((cond)); if (remove_p ) continue; if (read_index != write_index) ((vec))[write_index ] = ((vec))[read_index]; write_index++; } if (read_index - write_index > 0) ((vec)).block_remove (write_index, read_index - write_index ); } | ||||
| 1110 | cond){ ((void)(!(((vec).length ()) <= ((vec)).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1110, __FUNCTION__), 0 : 0)); for (read_index = write_index = (0); read_index < ((vec).length ()); ++read_index) { elem_ptr = &((vec))[read_index]; bool remove_p = ((cond)); if (remove_p ) continue; if (read_index != write_index) ((vec))[write_index ] = ((vec))[read_index]; write_index++; } if (read_index - write_index > 0) ((vec)).block_remove (write_index, read_index - write_index ); } \ | ||||
| 1111 | VEC_ORDERED_REMOVE_IF_FROM_TO ((vec), read_index, write_index, \{ ((void)(!(((vec).length ()) <= ((vec)).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1112, __FUNCTION__), 0 : 0)); for (read_index = write_index = (0); read_index < ((vec).length ()); ++read_index) { elem_ptr = &((vec))[read_index]; bool remove_p = ((cond)); if (remove_p ) continue; if (read_index != write_index) ((vec))[write_index ] = ((vec))[read_index]; write_index++; } if (read_index - write_index > 0) ((vec)).block_remove (write_index, read_index - write_index ); } | ||||
| 1112 | elem_ptr, 0, (vec).length (), (cond)){ ((void)(!(((vec).length ()) <= ((vec)).length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1112, __FUNCTION__), 0 : 0)); for (read_index = write_index = (0); read_index < ((vec).length ()); ++read_index) { elem_ptr = &((vec))[read_index]; bool remove_p = ((cond)); if (remove_p ) continue; if (read_index != write_index) ((vec))[write_index ] = ((vec))[read_index]; write_index++; } if (read_index - write_index > 0) ((vec)).block_remove (write_index, read_index - write_index ); } | ||||
| 1113 | |||||
| 1114 | /* Remove an element from the IXth position of this vector. Ordering of | ||||
| 1115 | remaining elements is destroyed. This is an O(1) operation. */ | ||||
| 1116 | |||||
| 1117 | template<typename T, typename A> | ||||
| 1118 | inline void | ||||
| 1119 | vec<T, A, vl_embed>::unordered_remove (unsigned ix) | ||||
| 1120 | { | ||||
| 1121 | gcc_checking_assert (ix < length ())((void)(!(ix < length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1121, __FUNCTION__), 0 : 0)); | ||||
| 1122 | T *p = address (); | ||||
| 1123 | p[ix] = p[--m_vecpfx.m_num]; | ||||
| 1124 | } | ||||
| 1125 | |||||
| 1126 | |||||
| 1127 | /* Remove LEN elements starting at the IXth. Ordering is retained. | ||||
| 1128 | This is an O(N) operation due to memmove. */ | ||||
| 1129 | |||||
| 1130 | template<typename T, typename A> | ||||
| 1131 | inline void | ||||
| 1132 | vec<T, A, vl_embed>::block_remove (unsigned ix, unsigned len) | ||||
| 1133 | { | ||||
| 1134 | gcc_checking_assert (ix + len <= length ())((void)(!(ix + len <= length ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1134, __FUNCTION__), 0 : 0)); | ||||
| 1135 | T *slot = &address ()[ix]; | ||||
| 1136 | m_vecpfx.m_num -= len; | ||||
| 1137 | memmove (slot, slot + len, (m_vecpfx.m_num - ix) * sizeof (T)); | ||||
| 1138 | } | ||||
| 1139 | |||||
| 1140 | |||||
| 1141 | /* Sort the contents of this vector with qsort. CMP is the comparison | ||||
| 1142 | function to pass to qsort. */ | ||||
| 1143 | |||||
| 1144 | template<typename T, typename A> | ||||
| 1145 | inline void | ||||
| 1146 | vec<T, A, vl_embed>::qsort (int (*cmp) (const void *, const void *))qsort (int (*cmp) (const void *, const void *)) | ||||
| 1147 | { | ||||
| 1148 | if (length () > 1) | ||||
| 1149 | gcc_qsort (address (), length (), sizeof (T), cmp); | ||||
| 1150 | } | ||||
| 1151 | |||||
| 1152 | /* Sort the contents of this vector with qsort. CMP is the comparison | ||||
| 1153 | function to pass to qsort. */ | ||||
| 1154 | |||||
| 1155 | template<typename T, typename A> | ||||
| 1156 | inline void | ||||
| 1157 | vec<T, A, vl_embed>::sort (int (*cmp) (const void *, const void *, void *), | ||||
| 1158 | void *data) | ||||
| 1159 | { | ||||
| 1160 | if (length () > 1) | ||||
| 1161 | gcc_sort_r (address (), length (), sizeof (T), cmp, data); | ||||
| 1162 | } | ||||
| 1163 | |||||
| 1164 | /* Sort the contents of this vector with gcc_stablesort_r. CMP is the | ||||
| 1165 | comparison function to pass to qsort. */ | ||||
| 1166 | |||||
| 1167 | template<typename T, typename A> | ||||
| 1168 | inline void | ||||
| 1169 | vec<T, A, vl_embed>::stablesort (int (*cmp) (const void *, const void *, | ||||
| 1170 | void *), void *data) | ||||
| 1171 | { | ||||
| 1172 | if (length () > 1) | ||||
| 1173 | gcc_stablesort_r (address (), length (), sizeof (T), cmp, data); | ||||
| 1174 | } | ||||
| 1175 | |||||
| 1176 | /* Search the contents of the sorted vector with a binary search. | ||||
| 1177 | CMP is the comparison function to pass to bsearch. */ | ||||
| 1178 | |||||
| 1179 | template<typename T, typename A> | ||||
| 1180 | inline T * | ||||
| 1181 | vec<T, A, vl_embed>::bsearch (const void *key, | ||||
| 1182 | int (*compar) (const void *, const void *)) | ||||
| 1183 | { | ||||
| 1184 | const void *base = this->address (); | ||||
| 1185 | size_t nmemb = this->length (); | ||||
| 1186 | size_t size = sizeof (T); | ||||
| 1187 | /* The following is a copy of glibc stdlib-bsearch.h. */ | ||||
| 1188 | size_t l, u, idx; | ||||
| 1189 | const void *p; | ||||
| 1190 | int comparison; | ||||
| 1191 | |||||
| 1192 | l = 0; | ||||
| 1193 | u = nmemb; | ||||
| 1194 | while (l < u) | ||||
| 1195 | { | ||||
| 1196 | idx = (l + u) / 2; | ||||
| 1197 | p = (const void *) (((const char *) base) + (idx * size)); | ||||
| 1198 | comparison = (*compar) (key, p); | ||||
| 1199 | if (comparison < 0) | ||||
| 1200 | u = idx; | ||||
| 1201 | else if (comparison > 0) | ||||
| 1202 | l = idx + 1; | ||||
| 1203 | else | ||||
| 1204 | return (T *)const_cast<void *>(p); | ||||
| 1205 | } | ||||
| 1206 | |||||
| 1207 | return NULLnullptr; | ||||
| 1208 | } | ||||
| 1209 | |||||
| 1210 | /* Search the contents of the sorted vector with a binary search. | ||||
| 1211 | CMP is the comparison function to pass to bsearch. */ | ||||
| 1212 | |||||
| 1213 | template<typename T, typename A> | ||||
| 1214 | inline T * | ||||
| 1215 | vec<T, A, vl_embed>::bsearch (const void *key, | ||||
| 1216 | int (*compar) (const void *, const void *, | ||||
| 1217 | void *), void *data) | ||||
| 1218 | { | ||||
| 1219 | const void *base = this->address (); | ||||
| 1220 | size_t nmemb = this->length (); | ||||
| 1221 | size_t size = sizeof (T); | ||||
| 1222 | /* The following is a copy of glibc stdlib-bsearch.h. */ | ||||
| 1223 | size_t l, u, idx; | ||||
| 1224 | const void *p; | ||||
| 1225 | int comparison; | ||||
| 1226 | |||||
| 1227 | l = 0; | ||||
| 1228 | u = nmemb; | ||||
| 1229 | while (l < u) | ||||
| 1230 | { | ||||
| 1231 | idx = (l + u) / 2; | ||||
| 1232 | p = (const void *) (((const char *) base) + (idx * size)); | ||||
| 1233 | comparison = (*compar) (key, p, data); | ||||
| 1234 | if (comparison < 0) | ||||
| 1235 | u = idx; | ||||
| 1236 | else if (comparison > 0) | ||||
| 1237 | l = idx + 1; | ||||
| 1238 | else | ||||
| 1239 | return (T *)const_cast<void *>(p); | ||||
| 1240 | } | ||||
| 1241 | |||||
| 1242 | return NULLnullptr; | ||||
| 1243 | } | ||||
| 1244 | |||||
| 1245 | /* Return true if SEARCH is an element of V. Note that this is O(N) in the | ||||
| 1246 | size of the vector and so should be used with care. */ | ||||
| 1247 | |||||
| 1248 | template<typename T, typename A> | ||||
| 1249 | inline bool | ||||
| 1250 | vec<T, A, vl_embed>::contains (const T &search) const | ||||
| 1251 | { | ||||
| 1252 | unsigned int len = length (); | ||||
| 1253 | const T *p = address (); | ||||
| 1254 | for (unsigned int i = 0; i < len; i++) | ||||
| 1255 | { | ||||
| 1256 | const T *slot = &p[i]; | ||||
| 1257 | if (*slot == search) | ||||
| 1258 | return true; | ||||
| 1259 | } | ||||
| 1260 | |||||
| 1261 | return false; | ||||
| 1262 | } | ||||
| 1263 | |||||
| 1264 | /* Find and return the first position in which OBJ could be inserted | ||||
| 1265 | without changing the ordering of this vector. LESSTHAN is a | ||||
| 1266 | function that returns true if the first argument is strictly less | ||||
| 1267 | than the second. */ | ||||
| 1268 | |||||
| 1269 | template<typename T, typename A> | ||||
| 1270 | unsigned | ||||
| 1271 | vec<T, A, vl_embed>::lower_bound (const T &obj, | ||||
| 1272 | bool (*lessthan)(const T &, const T &)) | ||||
| 1273 | const | ||||
| 1274 | { | ||||
| 1275 | unsigned int len = length (); | ||||
| 1276 | unsigned int half, middle; | ||||
| 1277 | unsigned int first = 0; | ||||
| 1278 | while (len > 0) | ||||
| 1279 | { | ||||
| 1280 | half = len / 2; | ||||
| 1281 | middle = first; | ||||
| 1282 | middle += half; | ||||
| 1283 | const T &middle_elem = address ()[middle]; | ||||
| 1284 | if (lessthan (middle_elem, obj)) | ||||
| 1285 | { | ||||
| 1286 | first = middle; | ||||
| 1287 | ++first; | ||||
| 1288 | len = len - half - 1; | ||||
| 1289 | } | ||||
| 1290 | else | ||||
| 1291 | len = half; | ||||
| 1292 | } | ||||
| 1293 | return first; | ||||
| 1294 | } | ||||
| 1295 | |||||
| 1296 | |||||
| 1297 | /* Return the number of bytes needed to embed an instance of an | ||||
| 1298 | embeddable vec inside another data structure. | ||||
| 1299 | |||||
| 1300 | Use these methods to determine the required size and initialization | ||||
| 1301 | of a vector V of type T embedded within another structure (as the | ||||
| 1302 | final member): | ||||
| 1303 | |||||
| 1304 | size_t vec<T, A, vl_embed>::embedded_size (unsigned alloc); | ||||
| 1305 | void v->embedded_init (unsigned alloc, unsigned num); | ||||
| 1306 | |||||
| 1307 | These allow the caller to perform the memory allocation. */ | ||||
| 1308 | |||||
| 1309 | template<typename T, typename A> | ||||
| 1310 | inline size_t | ||||
| 1311 | vec<T, A, vl_embed>::embedded_size (unsigned alloc) | ||||
| 1312 | { | ||||
| 1313 | struct alignas (T) U { char data[sizeof (T)]; }; | ||||
| 1314 | typedef vec<U, A, vl_embed> vec_embedded; | ||||
| 1315 | typedef typename std::conditional<std::is_standard_layout<T>::value, | ||||
| 1316 | vec, vec_embedded>::type vec_stdlayout; | ||||
| 1317 | static_assert (sizeof (vec_stdlayout) == sizeof (vec), ""); | ||||
| 1318 | static_assert (alignof (vec_stdlayout) == alignof (vec), ""); | ||||
| 1319 | return sizeof (vec_stdlayout) + alloc * sizeof (T); | ||||
| 1320 | } | ||||
| 1321 | |||||
| 1322 | |||||
| 1323 | /* Initialize the vector to contain room for ALLOC elements and | ||||
| 1324 | NUM active elements. */ | ||||
| 1325 | |||||
| 1326 | template<typename T, typename A> | ||||
| 1327 | inline void | ||||
| 1328 | vec<T, A, vl_embed>::embedded_init (unsigned alloc, unsigned num, unsigned aut) | ||||
| 1329 | { | ||||
| 1330 | m_vecpfx.m_alloc = alloc; | ||||
| 1331 | m_vecpfx.m_using_auto_storage = aut; | ||||
| 1332 | m_vecpfx.m_num = num; | ||||
| 1333 | } | ||||
| 1334 | |||||
| 1335 | |||||
| 1336 | /* Grow the vector to a specific length. LEN must be as long or longer than | ||||
| 1337 | the current length. The new elements are uninitialized. */ | ||||
| 1338 | |||||
| 1339 | template<typename T, typename A> | ||||
| 1340 | inline void | ||||
| 1341 | vec<T, A, vl_embed>::quick_grow (unsigned len) | ||||
| 1342 | { | ||||
| 1343 | gcc_checking_assert (length () <= len && len <= m_vecpfx.m_alloc)((void)(!(length () <= len && len <= m_vecpfx.m_alloc ) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1343, __FUNCTION__), 0 : 0)); | ||||
| 1344 | m_vecpfx.m_num = len; | ||||
| 1345 | } | ||||
| 1346 | |||||
| 1347 | |||||
| 1348 | /* Grow the vector to a specific length. LEN must be as long or longer than | ||||
| 1349 | the current length. The new elements are initialized to zero. */ | ||||
| 1350 | |||||
| 1351 | template<typename T, typename A> | ||||
| 1352 | inline void | ||||
| 1353 | vec<T, A, vl_embed>::quick_grow_cleared (unsigned len) | ||||
| 1354 | { | ||||
| 1355 | unsigned oldlen = length (); | ||||
| 1356 | size_t growby = len - oldlen; | ||||
| 1357 | quick_grow (len); | ||||
| 1358 | if (growby != 0) | ||||
| 1359 | vec_default_construct (address () + oldlen, growby); | ||||
| 1360 | } | ||||
| 1361 | |||||
| 1362 | /* Garbage collection support for vec<T, A, vl_embed>. */ | ||||
| 1363 | |||||
| 1364 | template<typename T> | ||||
| 1365 | void | ||||
| 1366 | gt_ggc_mx (vec<T, va_gc> *v) | ||||
| 1367 | { | ||||
| 1368 | extern void gt_ggc_mx (T &); | ||||
| 1369 | for (unsigned i = 0; i < v->length (); i++) | ||||
| 1370 | gt_ggc_mx ((*v)[i]); | ||||
| 1371 | } | ||||
| 1372 | |||||
| 1373 | template<typename T> | ||||
| 1374 | void | ||||
| 1375 | gt_ggc_mx (vec<T, va_gc_atomic, vl_embed> *v ATTRIBUTE_UNUSED__attribute__ ((__unused__))) | ||||
| 1376 | { | ||||
| 1377 | /* Nothing to do. Vectors of atomic types wrt GC do not need to | ||||
| 1378 | be traversed. */ | ||||
| 1379 | } | ||||
| 1380 | |||||
| 1381 | |||||
| 1382 | /* PCH support for vec<T, A, vl_embed>. */ | ||||
| 1383 | |||||
| 1384 | template<typename T, typename A> | ||||
| 1385 | void | ||||
| 1386 | gt_pch_nx (vec<T, A, vl_embed> *v) | ||||
| 1387 | { | ||||
| 1388 | extern void gt_pch_nx (T &); | ||||
| 1389 | for (unsigned i = 0; i < v->length (); i++) | ||||
| 1390 | gt_pch_nx ((*v)[i]); | ||||
| 1391 | } | ||||
| 1392 | |||||
| 1393 | template<typename T, typename A> | ||||
| 1394 | void | ||||
| 1395 | gt_pch_nx (vec<T *, A, vl_embed> *v, gt_pointer_operator op, void *cookie) | ||||
| 1396 | { | ||||
| 1397 | for (unsigned i = 0; i < v->length (); i++) | ||||
| 1398 | op (&((*v)[i]), NULLnullptr, cookie); | ||||
| 1399 | } | ||||
| 1400 | |||||
| 1401 | template<typename T, typename A> | ||||
| 1402 | void | ||||
| 1403 | gt_pch_nx (vec<T, A, vl_embed> *v, gt_pointer_operator op, void *cookie) | ||||
| 1404 | { | ||||
| 1405 | extern void gt_pch_nx (T *, gt_pointer_operator, void *); | ||||
| 1406 | for (unsigned i = 0; i < v->length (); i++) | ||||
| 1407 | gt_pch_nx (&((*v)[i]), op, cookie); | ||||
| 1408 | } | ||||
| 1409 | |||||
| 1410 | |||||
| 1411 | /* Space efficient vector. These vectors can grow dynamically and are | ||||
| 1412 | allocated together with their control data. They are suited to be | ||||
| 1413 | included in data structures. Prior to initial allocation, they | ||||
| 1414 | only take a single word of storage. | ||||
| 1415 | |||||
| 1416 | These vectors are implemented as a pointer to an embeddable vector. | ||||
| 1417 | The semantics allow for this pointer to be NULL to represent empty | ||||
| 1418 | vectors. This way, empty vectors occupy minimal space in the | ||||
| 1419 | structure containing them. | ||||
| 1420 | |||||
| 1421 | Properties: | ||||
| 1422 | |||||
| 1423 | - The whole vector and control data are allocated in a single | ||||
| 1424 | contiguous block. | ||||
| 1425 | - The whole vector may be re-allocated. | ||||
| 1426 | - Vector data may grow and shrink. | ||||
| 1427 | - Access and manipulation requires a pointer test and | ||||
| 1428 | indirection. | ||||
| 1429 | - It requires 1 word of storage (prior to vector allocation). | ||||
| 1430 | |||||
| 1431 | |||||
| 1432 | Limitations: | ||||
| 1433 | |||||
| 1434 | These vectors must be PODs because they are stored in unions. | ||||
| 1435 | (http://en.wikipedia.org/wiki/Plain_old_data_structures). | ||||
| 1436 | As long as we use C++03, we cannot have constructors nor | ||||
| 1437 | destructors in classes that are stored in unions. */ | ||||
| 1438 | |||||
| 1439 | template<typename T, size_t N = 0> | ||||
| 1440 | class auto_vec; | ||||
| 1441 | |||||
| 1442 | template<typename T> | ||||
| 1443 | struct vec<T, va_heap, vl_ptr> | ||||
| 1444 | { | ||||
| 1445 | public: | ||||
| 1446 | /* Default ctors to ensure triviality. Use value-initialization | ||||
| 1447 | (e.g., vec() or vec v{ };) or vNULL to create a zero-initialized | ||||
| 1448 | instance. */ | ||||
| 1449 | vec () = default; | ||||
| 1450 | vec (const vec &) = default; | ||||
| 1451 | /* Initialization from the generic vNULL. */ | ||||
| 1452 | vec (vnull): m_vec () { } | ||||
| 1453 | /* Same as default ctor: vec storage must be released manually. */ | ||||
| 1454 | ~vec () = default; | ||||
| 1455 | |||||
| 1456 | /* Defaulted same as copy ctor. */ | ||||
| 1457 | vec& operator= (const vec &) = default; | ||||
| 1458 | |||||
| 1459 | /* Prevent implicit conversion from auto_vec. Use auto_vec::to_vec() | ||||
| 1460 | instead. */ | ||||
| 1461 | template <size_t N> | ||||
| 1462 | vec (auto_vec<T, N> &) = delete; | ||||
| 1463 | |||||
| 1464 | template <size_t N> | ||||
| 1465 | void operator= (auto_vec<T, N> &) = delete; | ||||
| 1466 | |||||
| 1467 | /* Memory allocation and deallocation for the embedded vector. | ||||
| 1468 | Needed because we cannot have proper ctors/dtors defined. */ | ||||
| 1469 | void create (unsigned nelems CXX_MEM_STAT_INFO); | ||||
| 1470 | void release (void); | ||||
| 1471 | |||||
| 1472 | /* Vector operations. */ | ||||
| 1473 | bool exists (void) const | ||||
| 1474 | { return m_vec != NULLnullptr; } | ||||
| 1475 | |||||
| 1476 | bool is_empty (void) const | ||||
| 1477 | { return m_vec ? m_vec->is_empty () : true; } | ||||
| 1478 | |||||
| 1479 | unsigned allocated (void) const | ||||
| 1480 | { return m_vec ? m_vec->allocated () : 0; } | ||||
| 1481 | |||||
| 1482 | unsigned length (void) const | ||||
| 1483 | { return m_vec ? m_vec->length () : 0; } | ||||
| 1484 | |||||
| 1485 | T *address (void) | ||||
| 1486 | { return m_vec ? m_vec->address () : NULLnullptr; } | ||||
| 1487 | |||||
| 1488 | const T *address (void) const | ||||
| 1489 | { return m_vec ? m_vec->address () : NULLnullptr; } | ||||
| 1490 | |||||
| 1491 | T *begin () { return address (); } | ||||
| 1492 | const T *begin () const { return address (); } | ||||
| 1493 | T *end () { return begin () + length (); } | ||||
| 1494 | const T *end () const { return begin () + length (); } | ||||
| 1495 | const T &operator[] (unsigned ix) const | ||||
| 1496 | { return (*m_vec)[ix]; } | ||||
| 1497 | |||||
| 1498 | bool operator!=(const vec &other) const | ||||
| 1499 | { return !(*this == other); } | ||||
| 1500 | |||||
| 1501 | bool operator==(const vec &other) const | ||||
| 1502 | { return address () == other.address (); } | ||||
| 1503 | |||||
| 1504 | T &operator[] (unsigned ix) | ||||
| 1505 | { return (*m_vec)[ix]; } | ||||
| 1506 | |||||
| 1507 | T &last (void) | ||||
| 1508 | { return m_vec->last (); } | ||||
| 1509 | |||||
| 1510 | bool space (int nelems) const | ||||
| 1511 | { return m_vec ? m_vec->space (nelems) : nelems == 0; } | ||||
| 1512 | |||||
| 1513 | bool iterate (unsigned ix, T *p) const; | ||||
| 1514 | bool iterate (unsigned ix, T **p) const; | ||||
| 1515 | vec copy (ALONE_CXX_MEM_STAT_INFO) const; | ||||
| 1516 | bool reserve (unsigned, bool = false CXX_MEM_STAT_INFO); | ||||
| 1517 | bool reserve_exact (unsigned CXX_MEM_STAT_INFO); | ||||
| 1518 | void splice (const vec &); | ||||
| 1519 | void safe_splice (const vec & CXX_MEM_STAT_INFO); | ||||
| 1520 | T *quick_push (const T &); | ||||
| 1521 | T *safe_push (const T &CXX_MEM_STAT_INFO); | ||||
| 1522 | T &pop (void); | ||||
| 1523 | void truncate (unsigned); | ||||
| 1524 | void safe_grow (unsigned, bool = false CXX_MEM_STAT_INFO); | ||||
| 1525 | void safe_grow_cleared (unsigned, bool = false CXX_MEM_STAT_INFO); | ||||
| 1526 | void quick_grow (unsigned); | ||||
| 1527 | void quick_grow_cleared (unsigned); | ||||
| 1528 | void quick_insert (unsigned, const T &); | ||||
| 1529 | void safe_insert (unsigned, const T & CXX_MEM_STAT_INFO); | ||||
| 1530 | void ordered_remove (unsigned); | ||||
| 1531 | void unordered_remove (unsigned); | ||||
| 1532 | void block_remove (unsigned, unsigned); | ||||
| 1533 | void qsort (int (*) (const void *, const void *))qsort (int (*) (const void *, const void *)); | ||||
| 1534 | void sort (int (*) (const void *, const void *, void *), void *); | ||||
| 1535 | void stablesort (int (*) (const void *, const void *, void *), void *); | ||||
| 1536 | T *bsearch (const void *key, int (*compar)(const void *, const void *)); | ||||
| 1537 | T *bsearch (const void *key, | ||||
| 1538 | int (*compar)(const void *, const void *, void *), void *); | ||||
| 1539 | unsigned lower_bound (T, bool (*)(const T &, const T &)) const; | ||||
| 1540 | bool contains (const T &search) const; | ||||
| 1541 | void reverse (void); | ||||
| 1542 | |||||
| 1543 | bool using_auto_storage () const; | ||||
| 1544 | |||||
| 1545 | /* FIXME - This field should be private, but we need to cater to | ||||
| 1546 | compilers that have stricter notions of PODness for types. */ | ||||
| 1547 | vec<T, va_heap, vl_embed> *m_vec; | ||||
| 1548 | }; | ||||
| 1549 | |||||
| 1550 | |||||
| 1551 | /* auto_vec is a subclass of vec that automatically manages creating and | ||||
| 1552 | releasing the internal vector. If N is non zero then it has N elements of | ||||
| 1553 | internal storage. The default is no internal storage, and you probably only | ||||
| 1554 | want to ask for internal storage for vectors on the stack because if the | ||||
| 1555 | size of the vector is larger than the internal storage that space is wasted. | ||||
| 1556 | */ | ||||
| 1557 | template<typename T, size_t N /* = 0 */> | ||||
| 1558 | class auto_vec : public vec<T, va_heap> | ||||
| 1559 | { | ||||
| 1560 | public: | ||||
| 1561 | auto_vec () | ||||
| 1562 | { | ||||
| 1563 | m_auto.embedded_init (N, 0, 1); | ||||
| 1564 | /* ??? Instead of initializing m_vec from &m_auto directly use an | ||||
| 1565 | expression that avoids refering to a specific member of 'this' | ||||
| 1566 | to derail the -Wstringop-overflow diagnostic code, avoiding | ||||
| 1567 | the impression that data accesses are supposed to be to the | ||||
| 1568 | m_auto member storage. */ | ||||
| 1569 | size_t off = (char *) &m_auto - (char *) this; | ||||
| 1570 | this->m_vec = (vec<T, va_heap, vl_embed> *) ((char *) this + off); | ||||
| 1571 | } | ||||
| 1572 | |||||
| 1573 | auto_vec (size_t s CXX_MEM_STAT_INFO) | ||||
| 1574 | { | ||||
| 1575 | if (s > N) | ||||
| 1576 | { | ||||
| 1577 | this->create (s PASS_MEM_STAT); | ||||
| 1578 | return; | ||||
| 1579 | } | ||||
| 1580 | |||||
| 1581 | m_auto.embedded_init (N, 0, 1); | ||||
| 1582 | /* ??? See above. */ | ||||
| 1583 | size_t off = (char *) &m_auto - (char *) this; | ||||
| 1584 | this->m_vec = (vec<T, va_heap, vl_embed> *) ((char *) this + off); | ||||
| 1585 | } | ||||
| 1586 | |||||
| 1587 | ~auto_vec () | ||||
| 1588 | { | ||||
| 1589 | this->release (); | ||||
| 1590 | } | ||||
| 1591 | |||||
| 1592 | /* Explicitly convert to the base class. There is no conversion | ||||
| 1593 | from a const auto_vec because a copy of the returned vec can | ||||
| 1594 | be used to modify *THIS. | ||||
| 1595 | This is a legacy function not to be used in new code. */ | ||||
| 1596 | vec<T, va_heap> to_vec_legacy () { | ||||
| 1597 | return *static_cast<vec<T, va_heap> *>(this); | ||||
| 1598 | } | ||||
| 1599 | |||||
| 1600 | private: | ||||
| 1601 | vec<T, va_heap, vl_embed> m_auto; | ||||
| 1602 | unsigned char m_data[sizeof (T) * N]; | ||||
| 1603 | }; | ||||
| 1604 | |||||
| 1605 | /* auto_vec is a sub class of vec whose storage is released when it is | ||||
| 1606 | destroyed. */ | ||||
| 1607 | template<typename T> | ||||
| 1608 | class auto_vec<T, 0> : public vec<T, va_heap> | ||||
| 1609 | { | ||||
| 1610 | public: | ||||
| 1611 | auto_vec () { this->m_vec = NULLnullptr; } | ||||
| 1612 | auto_vec (size_t n CXX_MEM_STAT_INFO) { this->create (n PASS_MEM_STAT); } | ||||
| 1613 | ~auto_vec () { this->release (); } | ||||
| 1614 | |||||
| 1615 | auto_vec (vec<T, va_heap>&& r) | ||||
| 1616 | { | ||||
| 1617 | gcc_assert (!r.using_auto_storage ())((void)(!(!r.using_auto_storage ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1617, __FUNCTION__), 0 : 0)); | ||||
| 1618 | this->m_vec = r.m_vec; | ||||
| 1619 | r.m_vec = NULLnullptr; | ||||
| 1620 | } | ||||
| 1621 | |||||
| 1622 | auto_vec (auto_vec<T> &&r) | ||||
| 1623 | { | ||||
| 1624 | gcc_assert (!r.using_auto_storage ())((void)(!(!r.using_auto_storage ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1624, __FUNCTION__), 0 : 0)); | ||||
| 1625 | this->m_vec = r.m_vec; | ||||
| 1626 | r.m_vec = NULLnullptr; | ||||
| 1627 | } | ||||
| 1628 | |||||
| 1629 | auto_vec& operator= (vec<T, va_heap>&& r) | ||||
| 1630 | { | ||||
| 1631 | if (this == &r) | ||||
| 1632 | return *this; | ||||
| 1633 | |||||
| 1634 | gcc_assert (!r.using_auto_storage ())((void)(!(!r.using_auto_storage ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1634, __FUNCTION__), 0 : 0)); | ||||
| 1635 | this->release (); | ||||
| 1636 | this->m_vec = r.m_vec; | ||||
| 1637 | r.m_vec = NULLnullptr; | ||||
| 1638 | return *this; | ||||
| 1639 | } | ||||
| 1640 | |||||
| 1641 | auto_vec& operator= (auto_vec<T> &&r) | ||||
| 1642 | { | ||||
| 1643 | if (this == &r) | ||||
| 1644 | return *this; | ||||
| 1645 | |||||
| 1646 | gcc_assert (!r.using_auto_storage ())((void)(!(!r.using_auto_storage ()) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 1646, __FUNCTION__), 0 : 0)); | ||||
| 1647 | this->release (); | ||||
| 1648 | this->m_vec = r.m_vec; | ||||
| 1649 | r.m_vec = NULLnullptr; | ||||
| 1650 | return *this; | ||||
| 1651 | } | ||||
| 1652 | |||||
| 1653 | /* Explicitly convert to the base class. There is no conversion | ||||
| 1654 | from a const auto_vec because a copy of the returned vec can | ||||
| 1655 | be used to modify *THIS. | ||||
| 1656 | This is a legacy function not to be used in new code. */ | ||||
| 1657 | vec<T, va_heap> to_vec_legacy () { | ||||
| 1658 | return *static_cast<vec<T, va_heap> *>(this); | ||||
| 1659 | } | ||||
| 1660 | |||||
| 1661 | // You probably don't want to copy a vector, so these are deleted to prevent | ||||
| 1662 | // unintentional use. If you really need a copy of the vectors contents you | ||||
| 1663 | // can use copy (). | ||||
| 1664 | auto_vec(const auto_vec &) = delete; | ||||
| 1665 | auto_vec &operator= (const auto_vec &) = delete; | ||||
| 1666 | }; | ||||
| 1667 | |||||
| 1668 | |||||
| 1669 | /* Allocate heap memory for pointer V and create the internal vector | ||||
| 1670 | with space for NELEMS elements. If NELEMS is 0, the internal | ||||
| 1671 | vector is initialized to empty. */ | ||||
| 1672 | |||||
| 1673 | template<typename T> | ||||
| 1674 | inline void | ||||
| 1675 | vec_alloc (vec<T> *&v, unsigned nelems CXX_MEM_STAT_INFO) | ||||
| 1676 | { | ||||
| 1677 | v = new vec<T>; | ||||
| 1678 | v->create (nelems PASS_MEM_STAT); | ||||
| 1679 | } | ||||
| 1680 | |||||
| 1681 | |||||
| 1682 | /* A subclass of auto_vec <char *> that frees all of its elements on | ||||
| 1683 | deletion. */ | ||||
| 1684 | |||||
| 1685 | class auto_string_vec : public auto_vec <char *> | ||||
| 1686 | { | ||||
| 1687 | public: | ||||
| 1688 | ~auto_string_vec (); | ||||
| 1689 | }; | ||||
| 1690 | |||||
| 1691 | /* A subclass of auto_vec <T *> that deletes all of its elements on | ||||
| 1692 | destruction. | ||||
| 1693 | |||||
| 1694 | This is a crude way for a vec to "own" the objects it points to | ||||
| 1695 | and clean up automatically. | ||||
| 1696 | |||||
| 1697 | For example, no attempt is made to delete elements when an item | ||||
| 1698 | within the vec is overwritten. | ||||
| 1699 | |||||
| 1700 | We can't rely on gnu::unique_ptr within a container, | ||||
| 1701 | since we can't rely on move semantics in C++98. */ | ||||
| 1702 | |||||
| 1703 | template <typename T> | ||||
| 1704 | class auto_delete_vec : public auto_vec <T *> | ||||
| 1705 | { | ||||
| 1706 | public: | ||||
| 1707 | auto_delete_vec () {} | ||||
| 1708 | auto_delete_vec (size_t s) : auto_vec <T *> (s) {} | ||||
| 1709 | |||||
| 1710 | ~auto_delete_vec (); | ||||
| 1711 | |||||
| 1712 | private: | ||||
| 1713 | DISABLE_COPY_AND_ASSIGN(auto_delete_vec)auto_delete_vec (const auto_delete_vec&) = delete; void operator = (const auto_delete_vec &) = delete; | ||||
| 1714 | }; | ||||
| 1715 | |||||
| 1716 | /* Conditionally allocate heap memory for VEC and its internal vector. */ | ||||
| 1717 | |||||
| 1718 | template<typename T> | ||||
| 1719 | inline void | ||||
| 1720 | vec_check_alloc (vec<T, va_heap> *&vec, unsigned nelems CXX_MEM_STAT_INFO) | ||||
| 1721 | { | ||||
| 1722 | if (!vec) | ||||
| 1723 | vec_alloc (vec, nelems PASS_MEM_STAT); | ||||
| 1724 | } | ||||
| 1725 | |||||
| 1726 | |||||
| 1727 | /* Free the heap memory allocated by vector V and set it to NULL. */ | ||||
| 1728 | |||||
| 1729 | template<typename T> | ||||
| 1730 | inline void | ||||
| 1731 | vec_free (vec<T> *&v) | ||||
| 1732 | { | ||||
| 1733 | if (v == NULLnullptr) | ||||
| 1734 | return; | ||||
| 1735 | |||||
| 1736 | v->release (); | ||||
| 1737 | delete v; | ||||
| 1738 | v = NULLnullptr; | ||||
| 1739 | } | ||||
| 1740 | |||||
| 1741 | |||||
| 1742 | /* Return iteration condition and update PTR to point to the IX'th | ||||
| 1743 | element of this vector. Use this to iterate over the elements of a | ||||
| 1744 | vector as follows, | ||||
| 1745 | |||||
| 1746 | for (ix = 0; v.iterate (ix, &ptr); ix++) | ||||
| 1747 | continue; */ | ||||
| 1748 | |||||
| 1749 | template<typename T> | ||||
| 1750 | inline bool | ||||
| 1751 | vec<T, va_heap, vl_ptr>::iterate (unsigned ix, T *ptr) const | ||||
| 1752 | { | ||||
| 1753 | if (m_vec) | ||||
| 1754 | return m_vec->iterate (ix, ptr); | ||||
| 1755 | else | ||||
| 1756 | { | ||||
| 1757 | *ptr = 0; | ||||
| 1758 | return false; | ||||
| 1759 | } | ||||
| 1760 | } | ||||
| 1761 | |||||
| 1762 | |||||
| 1763 | /* Return iteration condition and update *PTR to point to the | ||||
| 1764 | IX'th element of this vector. Use this to iterate over the | ||||
| 1765 | elements of a vector as follows, | ||||
| 1766 | |||||
| 1767 | for (ix = 0; v->iterate (ix, &ptr); ix++) | ||||
| 1768 | continue; | ||||
| 1769 | |||||
| 1770 | This variant is for vectors of objects. */ | ||||
| 1771 | |||||
| 1772 | template<typename T> | ||||
| 1773 | inline bool | ||||
| 1774 | vec<T, va_heap, vl_ptr>::iterate (unsigned ix, T **ptr) const | ||||
| 1775 | { | ||||
| 1776 | if (m_vec) | ||||
| 1777 | return m_vec->iterate (ix, ptr); | ||||
| 1778 | else | ||||
| 1779 | { | ||||
| 1780 | *ptr = 0; | ||||
| 1781 | return false; | ||||
| 1782 | } | ||||
| 1783 | } | ||||
| 1784 | |||||
| 1785 | |||||
| 1786 | /* Convenience macro for forward iteration. */ | ||||
| 1787 | #define FOR_EACH_VEC_ELT(V, I, P)for (I = 0; (V).iterate ((I), &(P)); ++(I)) \ | ||||
| 1788 | for (I = 0; (V).iterate ((I), &(P)); ++(I)) | ||||
| 1789 | |||||
| 1790 | #define FOR_EACH_VEC_SAFE_ELT(V, I, P)for (I = 0; vec_safe_iterate ((V), (I), &(P)); ++(I)) \ | ||||
| 1791 | for (I = 0; vec_safe_iterate ((V), (I), &(P)); ++(I)) | ||||
| 1792 | |||||
| 1793 | /* Likewise, but start from FROM rather than 0. */ | ||||
| 1794 | #define FOR_EACH_VEC_ELT_FROM(V, I, P, FROM)for (I = (FROM); (V).iterate ((I), &(P)); ++(I)) \ | ||||
| 1795 | for (I = (FROM); (V).iterate ((I), &(P)); ++(I)) | ||||
| 1796 | |||||
| 1797 | /* Convenience macro for reverse iteration. */ | ||||
| 1798 | #define FOR_EACH_VEC_ELT_REVERSE(V, I, P)for (I = (V).length () - 1; (V).iterate ((I), &(P)); (I)-- ) \ | ||||
| 1799 | for (I = (V).length () - 1; \ | ||||
| 1800 | (V).iterate ((I), &(P)); \ | ||||
| 1801 | (I)--) | ||||
| 1802 | |||||
| 1803 | #define FOR_EACH_VEC_SAFE_ELT_REVERSE(V, I, P)for (I = vec_safe_length (V) - 1; vec_safe_iterate ((V), (I), &(P)); (I)--) \ | ||||
| 1804 | for (I = vec_safe_length (V) - 1; \ | ||||
| 1805 | vec_safe_iterate ((V), (I), &(P)); \ | ||||
| 1806 | (I)--) | ||||
| 1807 | |||||
| 1808 | /* auto_string_vec's dtor, freeing all contained strings, automatically | ||||
| 1809 | chaining up to ~auto_vec <char *>, which frees the internal buffer. */ | ||||
| 1810 | |||||
| 1811 | inline | ||||
| 1812 | auto_string_vec::~auto_string_vec () | ||||
| 1813 | { | ||||
| 1814 | int i; | ||||
| 1815 | char *str; | ||||
| 1816 | FOR_EACH_VEC_ELT (*this, i, str)for (i = 0; (*this).iterate ((i), &(str)); ++(i)) | ||||
| 1817 | free (str); | ||||
| 1818 | } | ||||
| 1819 | |||||
| 1820 | /* auto_delete_vec's dtor, deleting all contained items, automatically | ||||
| 1821 | chaining up to ~auto_vec <T*>, which frees the internal buffer. */ | ||||
| 1822 | |||||
| 1823 | template <typename T> | ||||
| 1824 | inline | ||||
| 1825 | auto_delete_vec<T>::~auto_delete_vec () | ||||
| 1826 | { | ||||
| 1827 | int i; | ||||
| 1828 | T *item; | ||||
| 1829 | FOR_EACH_VEC_ELT (*this, i, item)for (i = 0; (*this).iterate ((i), &(item)); ++(i)) | ||||
| 1830 | delete item; | ||||
| 1831 | } | ||||
| 1832 | |||||
| 1833 | |||||
| 1834 | /* Return a copy of this vector. */ | ||||
| 1835 | |||||
| 1836 | template<typename T> | ||||
| 1837 | inline vec<T, va_heap, vl_ptr> | ||||
| 1838 | vec<T, va_heap, vl_ptr>::copy (ALONE_MEM_STAT_DECLvoid) const | ||||
| 1839 | { | ||||
| 1840 | vec<T, va_heap, vl_ptr> new_vec{ }; | ||||
| 1841 | if (length ()) | ||||
| 1842 | new_vec.m_vec = m_vec->copy (ALONE_PASS_MEM_STAT); | ||||
| 1843 | return new_vec; | ||||
| 1844 | } | ||||
| 1845 | |||||
| 1846 | |||||
| 1847 | /* Ensure that the vector has at least RESERVE slots available (if | ||||
| 1848 | EXACT is false), or exactly RESERVE slots available (if EXACT is | ||||
| 1849 | true). | ||||
| 1850 | |||||
| 1851 | This may create additional headroom if EXACT is false. | ||||
| 1852 | |||||
| 1853 | Note that this can cause the embedded vector to be reallocated. | ||||
| 1854 | Returns true iff reallocation actually occurred. */ | ||||
| 1855 | |||||
| 1856 | template<typename T> | ||||
| 1857 | inline bool | ||||
| 1858 | vec<T, va_heap, vl_ptr>::reserve (unsigned nelems, bool exact MEM_STAT_DECL) | ||||
| 1859 | { | ||||
| 1860 | if (space (nelems)) | ||||
| 1861 | return false; | ||||
| 1862 | |||||
| 1863 | /* For now play a game with va_heap::reserve to hide our auto storage if any, | ||||
| 1864 | this is necessary because it doesn't have enough information to know the | ||||
| 1865 | embedded vector is in auto storage, and so should not be freed. */ | ||||
| 1866 | vec<T, va_heap, vl_embed> *oldvec = m_vec; | ||||
| 1867 | unsigned int oldsize = 0; | ||||
| 1868 | bool handle_auto_vec = m_vec && using_auto_storage (); | ||||
| 1869 | if (handle_auto_vec) | ||||
| 1870 | { | ||||
| 1871 | m_vec = NULLnullptr; | ||||
| 1872 | oldsize = oldvec->length (); | ||||
| 1873 | nelems += oldsize; | ||||
| 1874 | } | ||||
| 1875 | |||||
| 1876 | va_heap::reserve (m_vec, nelems, exact PASS_MEM_STAT); | ||||
| 1877 | if (handle_auto_vec) | ||||
| 1878 | { | ||||
| 1879 | vec_copy_construct (m_vec->address (), oldvec->address (), oldsize); | ||||
| 1880 | m_vec->m_vecpfx.m_num = oldsize; | ||||
| 1881 | } | ||||
| 1882 | |||||
| 1883 | return true; | ||||
| 1884 | } | ||||
| 1885 | |||||
| 1886 | |||||
| 1887 | /* Ensure that this vector has exactly NELEMS slots available. This | ||||
| 1888 | will not create additional headroom. Note this can cause the | ||||
| 1889 | embedded vector to be reallocated. Returns true iff reallocation | ||||
| 1890 | actually occurred. */ | ||||
| 1891 | |||||
| 1892 | template<typename T> | ||||
| 1893 | inline bool | ||||
| 1894 | vec<T, va_heap, vl_ptr>::reserve_exact (unsigned nelems MEM_STAT_DECL) | ||||
| 1895 | { | ||||
| 1896 | return reserve (nelems, true PASS_MEM_STAT); | ||||
| 1897 | } | ||||
| 1898 | |||||
| 1899 | |||||
| 1900 | /* Create the internal vector and reserve NELEMS for it. This is | ||||
| 1901 | exactly like vec::reserve, but the internal vector is | ||||
| 1902 | unconditionally allocated from scratch. The old one, if it | ||||
| 1903 | existed, is lost. */ | ||||
| 1904 | |||||
| 1905 | template<typename T> | ||||
| 1906 | inline void | ||||
| 1907 | vec<T, va_heap, vl_ptr>::create (unsigned nelems MEM_STAT_DECL) | ||||
| 1908 | { | ||||
| 1909 | m_vec = NULLnullptr; | ||||
| 1910 | if (nelems > 0) | ||||
| 1911 | reserve_exact (nelems PASS_MEM_STAT); | ||||
| 1912 | } | ||||
| 1913 | |||||
| 1914 | |||||
| 1915 | /* Free the memory occupied by the embedded vector. */ | ||||
| 1916 | |||||
| 1917 | template<typename T> | ||||
| 1918 | inline void | ||||
| 1919 | vec<T, va_heap, vl_ptr>::release (void) | ||||
| 1920 | { | ||||
| 1921 | if (!m_vec) | ||||
| 1922 | return; | ||||
| 1923 | |||||
| 1924 | if (using_auto_storage ()) | ||||
| 1925 | { | ||||
| 1926 | m_vec->m_vecpfx.m_num = 0; | ||||
| 1927 | return; | ||||
| 1928 | } | ||||
| 1929 | |||||
| 1930 | va_heap::release (m_vec); | ||||
| 1931 | } | ||||
| 1932 | |||||
| 1933 | /* Copy the elements from SRC to the end of this vector as if by memcpy. | ||||
| 1934 | SRC and this vector must be allocated with the same memory | ||||
| 1935 | allocation mechanism. This vector is assumed to have sufficient | ||||
| 1936 | headroom available. */ | ||||
| 1937 | |||||
| 1938 | template<typename T> | ||||
| 1939 | inline void | ||||
| 1940 | vec<T, va_heap, vl_ptr>::splice (const vec<T, va_heap, vl_ptr> &src) | ||||
| 1941 | { | ||||
| 1942 | if (src.length ()) | ||||
| 1943 | m_vec->splice (*(src.m_vec)); | ||||
| 1944 | } | ||||
| 1945 | |||||
| 1946 | |||||
| 1947 | /* Copy the elements in SRC to the end of this vector as if by memcpy. | ||||
| 1948 | SRC and this vector must be allocated with the same mechanism. | ||||
| 1949 | If there is not enough headroom in this vector, it will be reallocated | ||||
| 1950 | as needed. */ | ||||
| 1951 | |||||
| 1952 | template<typename T> | ||||
| 1953 | inline void | ||||
| 1954 | vec<T, va_heap, vl_ptr>::safe_splice (const vec<T, va_heap, vl_ptr> &src | ||||
| 1955 | MEM_STAT_DECL) | ||||
| 1956 | { | ||||
| 1957 | if (src.length ()) | ||||
| 1958 | { | ||||
| 1959 | reserve_exact (src.length ()); | ||||
| 1960 | splice (src); | ||||
| 1961 | } | ||||
| 1962 | } | ||||
| 1963 | |||||
| 1964 | |||||
| 1965 | /* Push OBJ (a new element) onto the end of the vector. There must be | ||||
| 1966 | sufficient space in the vector. Return a pointer to the slot | ||||
| 1967 | where OBJ was inserted. */ | ||||
| 1968 | |||||
| 1969 | template<typename T> | ||||
| 1970 | inline T * | ||||
| 1971 | vec<T, va_heap, vl_ptr>::quick_push (const T &obj) | ||||
| 1972 | { | ||||
| 1973 | return m_vec->quick_push (obj); | ||||
| 1974 | } | ||||
| 1975 | |||||
| 1976 | |||||
| 1977 | /* Push a new element OBJ onto the end of this vector. Reallocates | ||||
| 1978 | the embedded vector, if needed. Return a pointer to the slot where | ||||
| 1979 | OBJ was inserted. */ | ||||
| 1980 | |||||
| 1981 | template<typename T> | ||||
| 1982 | inline T * | ||||
| 1983 | vec<T, va_heap, vl_ptr>::safe_push (const T &obj MEM_STAT_DECL) | ||||
| 1984 | { | ||||
| 1985 | reserve (1, false PASS_MEM_STAT); | ||||
| 1986 | return quick_push (obj); | ||||
| 1987 | } | ||||
| 1988 | |||||
| 1989 | |||||
| 1990 | /* Pop and return the last element off the end of the vector. */ | ||||
| 1991 | |||||
| 1992 | template<typename T> | ||||
| 1993 | inline T & | ||||
| 1994 | vec<T, va_heap, vl_ptr>::pop (void) | ||||
| 1995 | { | ||||
| 1996 | return m_vec->pop (); | ||||
| 1997 | } | ||||
| 1998 | |||||
| 1999 | |||||
| 2000 | /* Set the length of the vector to LEN. The new length must be less | ||||
| 2001 | than or equal to the current length. This is an O(1) operation. */ | ||||
| 2002 | |||||
| 2003 | template<typename T> | ||||
| 2004 | inline void | ||||
| 2005 | vec<T, va_heap, vl_ptr>::truncate (unsigned size) | ||||
| 2006 | { | ||||
| 2007 | if (m_vec) | ||||
| 2008 | m_vec->truncate (size); | ||||
| 2009 | else | ||||
| 2010 | gcc_checking_assert (size == 0)((void)(!(size == 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2010, __FUNCTION__), 0 : 0)); | ||||
| 2011 | } | ||||
| 2012 | |||||
| 2013 | |||||
| 2014 | /* Grow the vector to a specific length. LEN must be as long or | ||||
| 2015 | longer than the current length. The new elements are | ||||
| 2016 | uninitialized. Reallocate the internal vector, if needed. */ | ||||
| 2017 | |||||
| 2018 | template<typename T> | ||||
| 2019 | inline void | ||||
| 2020 | vec<T, va_heap, vl_ptr>::safe_grow (unsigned len, bool exact MEM_STAT_DECL) | ||||
| 2021 | { | ||||
| 2022 | unsigned oldlen = length (); | ||||
| 2023 | gcc_checking_assert (oldlen <= len)((void)(!(oldlen <= len) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2023, __FUNCTION__), 0 : 0)); | ||||
| 2024 | reserve (len - oldlen, exact PASS_MEM_STAT); | ||||
| 2025 | if (m_vec) | ||||
| 2026 | m_vec->quick_grow (len); | ||||
| 2027 | else | ||||
| 2028 | gcc_checking_assert (len == 0)((void)(!(len == 0) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2028, __FUNCTION__), 0 : 0)); | ||||
| 2029 | } | ||||
| 2030 | |||||
| 2031 | |||||
| 2032 | /* Grow the embedded vector to a specific length. LEN must be as | ||||
| 2033 | long or longer than the current length. The new elements are | ||||
| 2034 | initialized to zero. Reallocate the internal vector, if needed. */ | ||||
| 2035 | |||||
| 2036 | template<typename T> | ||||
| 2037 | inline void | ||||
| 2038 | vec<T, va_heap, vl_ptr>::safe_grow_cleared (unsigned len, bool exact | ||||
| 2039 | MEM_STAT_DECL) | ||||
| 2040 | { | ||||
| 2041 | unsigned oldlen = length (); | ||||
| 2042 | size_t growby = len - oldlen; | ||||
| 2043 | safe_grow (len, exact PASS_MEM_STAT); | ||||
| 2044 | if (growby != 0) | ||||
| 2045 | vec_default_construct (address () + oldlen, growby); | ||||
| 2046 | } | ||||
| 2047 | |||||
| 2048 | |||||
| 2049 | /* Same as vec::safe_grow but without reallocation of the internal vector. | ||||
| 2050 | If the vector cannot be extended, a runtime assertion will be triggered. */ | ||||
| 2051 | |||||
| 2052 | template<typename T> | ||||
| 2053 | inline void | ||||
| 2054 | vec<T, va_heap, vl_ptr>::quick_grow (unsigned len) | ||||
| 2055 | { | ||||
| 2056 | gcc_checking_assert (m_vec)((void)(!(m_vec) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2056, __FUNCTION__), 0 : 0)); | ||||
| 2057 | m_vec->quick_grow (len); | ||||
| 2058 | } | ||||
| 2059 | |||||
| 2060 | |||||
| 2061 | /* Same as vec::quick_grow_cleared but without reallocation of the | ||||
| 2062 | internal vector. If the vector cannot be extended, a runtime | ||||
| 2063 | assertion will be triggered. */ | ||||
| 2064 | |||||
| 2065 | template<typename T> | ||||
| 2066 | inline void | ||||
| 2067 | vec<T, va_heap, vl_ptr>::quick_grow_cleared (unsigned len) | ||||
| 2068 | { | ||||
| 2069 | gcc_checking_assert (m_vec)((void)(!(m_vec) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2069, __FUNCTION__), 0 : 0)); | ||||
| 2070 | m_vec->quick_grow_cleared (len); | ||||
| 2071 | } | ||||
| 2072 | |||||
| 2073 | |||||
| 2074 | /* Insert an element, OBJ, at the IXth position of this vector. There | ||||
| 2075 | must be sufficient space. */ | ||||
| 2076 | |||||
| 2077 | template<typename T> | ||||
| 2078 | inline void | ||||
| 2079 | vec<T, va_heap, vl_ptr>::quick_insert (unsigned ix, const T &obj) | ||||
| 2080 | { | ||||
| 2081 | m_vec->quick_insert (ix, obj); | ||||
| 2082 | } | ||||
| 2083 | |||||
| 2084 | |||||
| 2085 | /* Insert an element, OBJ, at the IXth position of the vector. | ||||
| 2086 | Reallocate the embedded vector, if necessary. */ | ||||
| 2087 | |||||
| 2088 | template<typename T> | ||||
| 2089 | inline void | ||||
| 2090 | vec<T, va_heap, vl_ptr>::safe_insert (unsigned ix, const T &obj MEM_STAT_DECL) | ||||
| 2091 | { | ||||
| 2092 | reserve (1, false PASS_MEM_STAT); | ||||
| 2093 | quick_insert (ix, obj); | ||||
| 2094 | } | ||||
| 2095 | |||||
| 2096 | |||||
| 2097 | /* Remove an element from the IXth position of this vector. Ordering of | ||||
| 2098 | remaining elements is preserved. This is an O(N) operation due to | ||||
| 2099 | a memmove. */ | ||||
| 2100 | |||||
| 2101 | template<typename T> | ||||
| 2102 | inline void | ||||
| 2103 | vec<T, va_heap, vl_ptr>::ordered_remove (unsigned ix) | ||||
| 2104 | { | ||||
| 2105 | m_vec->ordered_remove (ix); | ||||
| 2106 | } | ||||
| 2107 | |||||
| 2108 | |||||
| 2109 | /* Remove an element from the IXth position of this vector. Ordering | ||||
| 2110 | of remaining elements is destroyed. This is an O(1) operation. */ | ||||
| 2111 | |||||
| 2112 | template<typename T> | ||||
| 2113 | inline void | ||||
| 2114 | vec<T, va_heap, vl_ptr>::unordered_remove (unsigned ix) | ||||
| 2115 | { | ||||
| 2116 | m_vec->unordered_remove (ix); | ||||
| 2117 | } | ||||
| 2118 | |||||
| 2119 | |||||
| 2120 | /* Remove LEN elements starting at the IXth. Ordering is retained. | ||||
| 2121 | This is an O(N) operation due to memmove. */ | ||||
| 2122 | |||||
| 2123 | template<typename T> | ||||
| 2124 | inline void | ||||
| 2125 | vec<T, va_heap, vl_ptr>::block_remove (unsigned ix, unsigned len) | ||||
| 2126 | { | ||||
| 2127 | m_vec->block_remove (ix, len); | ||||
| 2128 | } | ||||
| 2129 | |||||
| 2130 | |||||
| 2131 | /* Sort the contents of this vector with qsort. CMP is the comparison | ||||
| 2132 | function to pass to qsort. */ | ||||
| 2133 | |||||
| 2134 | template<typename T> | ||||
| 2135 | inline void | ||||
| 2136 | vec<T, va_heap, vl_ptr>::qsort (int (*cmp) (const void *, const void *))qsort (int (*cmp) (const void *, const void *)) | ||||
| 2137 | { | ||||
| 2138 | if (m_vec) | ||||
| 2139 | m_vec->qsort (cmp)qsort (cmp); | ||||
| 2140 | } | ||||
| 2141 | |||||
| 2142 | /* Sort the contents of this vector with qsort. CMP is the comparison | ||||
| 2143 | function to pass to qsort. */ | ||||
| 2144 | |||||
| 2145 | template<typename T> | ||||
| 2146 | inline void | ||||
| 2147 | vec<T, va_heap, vl_ptr>::sort (int (*cmp) (const void *, const void *, | ||||
| 2148 | void *), void *data) | ||||
| 2149 | { | ||||
| 2150 | if (m_vec) | ||||
| 2151 | m_vec->sort (cmp, data); | ||||
| 2152 | } | ||||
| 2153 | |||||
| 2154 | /* Sort the contents of this vector with gcc_stablesort_r. CMP is the | ||||
| 2155 | comparison function to pass to qsort. */ | ||||
| 2156 | |||||
| 2157 | template<typename T> | ||||
| 2158 | inline void | ||||
| 2159 | vec<T, va_heap, vl_ptr>::stablesort (int (*cmp) (const void *, const void *, | ||||
| 2160 | void *), void *data) | ||||
| 2161 | { | ||||
| 2162 | if (m_vec) | ||||
| 2163 | m_vec->stablesort (cmp, data); | ||||
| 2164 | } | ||||
| 2165 | |||||
| 2166 | /* Search the contents of the sorted vector with a binary search. | ||||
| 2167 | CMP is the comparison function to pass to bsearch. */ | ||||
| 2168 | |||||
| 2169 | template<typename T> | ||||
| 2170 | inline T * | ||||
| 2171 | vec<T, va_heap, vl_ptr>::bsearch (const void *key, | ||||
| 2172 | int (*cmp) (const void *, const void *)) | ||||
| 2173 | { | ||||
| 2174 | if (m_vec) | ||||
| 2175 | return m_vec->bsearch (key, cmp); | ||||
| 2176 | return NULLnullptr; | ||||
| 2177 | } | ||||
| 2178 | |||||
| 2179 | /* Search the contents of the sorted vector with a binary search. | ||||
| 2180 | CMP is the comparison function to pass to bsearch. */ | ||||
| 2181 | |||||
| 2182 | template<typename T> | ||||
| 2183 | inline T * | ||||
| 2184 | vec<T, va_heap, vl_ptr>::bsearch (const void *key, | ||||
| 2185 | int (*cmp) (const void *, const void *, | ||||
| 2186 | void *), void *data) | ||||
| 2187 | { | ||||
| 2188 | if (m_vec) | ||||
| 2189 | return m_vec->bsearch (key, cmp, data); | ||||
| 2190 | return NULLnullptr; | ||||
| 2191 | } | ||||
| 2192 | |||||
| 2193 | |||||
| 2194 | /* Find and return the first position in which OBJ could be inserted | ||||
| 2195 | without changing the ordering of this vector. LESSTHAN is a | ||||
| 2196 | function that returns true if the first argument is strictly less | ||||
| 2197 | than the second. */ | ||||
| 2198 | |||||
| 2199 | template<typename T> | ||||
| 2200 | inline unsigned | ||||
| 2201 | vec<T, va_heap, vl_ptr>::lower_bound (T obj, | ||||
| 2202 | bool (*lessthan)(const T &, const T &)) | ||||
| 2203 | const | ||||
| 2204 | { | ||||
| 2205 | return m_vec ? m_vec->lower_bound (obj, lessthan) : 0; | ||||
| 2206 | } | ||||
| 2207 | |||||
| 2208 | /* Return true if SEARCH is an element of V. Note that this is O(N) in the | ||||
| 2209 | size of the vector and so should be used with care. */ | ||||
| 2210 | |||||
| 2211 | template<typename T> | ||||
| 2212 | inline bool | ||||
| 2213 | vec<T, va_heap, vl_ptr>::contains (const T &search) const | ||||
| 2214 | { | ||||
| 2215 | return m_vec ? m_vec->contains (search) : false; | ||||
| 2216 | } | ||||
| 2217 | |||||
| 2218 | /* Reverse content of the vector. */ | ||||
| 2219 | |||||
| 2220 | template<typename T> | ||||
| 2221 | inline void | ||||
| 2222 | vec<T, va_heap, vl_ptr>::reverse (void) | ||||
| 2223 | { | ||||
| 2224 | unsigned l = length (); | ||||
| 2225 | T *ptr = address (); | ||||
| 2226 | |||||
| 2227 | for (unsigned i = 0; i < l / 2; i++) | ||||
| 2228 | std::swap (ptr[i], ptr[l - i - 1]); | ||||
| 2229 | } | ||||
| 2230 | |||||
| 2231 | template<typename T> | ||||
| 2232 | inline bool | ||||
| 2233 | vec<T, va_heap, vl_ptr>::using_auto_storage () const | ||||
| 2234 | { | ||||
| 2235 | return m_vec ? m_vec->m_vecpfx.m_using_auto_storage : false; | ||||
| 2236 | } | ||||
| 2237 | |||||
| 2238 | /* Release VEC and call release of all element vectors. */ | ||||
| 2239 | |||||
| 2240 | template<typename T> | ||||
| 2241 | inline void | ||||
| 2242 | release_vec_vec (vec<vec<T> > &vec) | ||||
| 2243 | { | ||||
| 2244 | for (unsigned i = 0; i < vec.length (); i++) | ||||
| 2245 | vec[i].release (); | ||||
| 2246 | |||||
| 2247 | vec.release (); | ||||
| 2248 | } | ||||
| 2249 | |||||
| 2250 | // Provide a subset of the std::span functionality. (We can't use std::span | ||||
| 2251 | // itself because it's a C++20 feature.) | ||||
| 2252 | // | ||||
| 2253 | // In addition, provide an invalid value that is distinct from all valid | ||||
| 2254 | // sequences (including the empty sequence). This can be used to return | ||||
| 2255 | // failure without having to use std::optional. | ||||
| 2256 | // | ||||
| 2257 | // There is no operator bool because it would be ambiguous whether it is | ||||
| 2258 | // testing for a valid value or an empty sequence. | ||||
| 2259 | template<typename T> | ||||
| 2260 | class array_slice | ||||
| 2261 | { | ||||
| 2262 | template<typename OtherT> friend class array_slice; | ||||
| 2263 | |||||
| 2264 | public: | ||||
| 2265 | using value_type = T; | ||||
| 2266 | using iterator = T *; | ||||
| 2267 | using const_iterator = const T *; | ||||
| 2268 | |||||
| 2269 | array_slice () : m_base (nullptr), m_size (0) {} | ||||
| 2270 | |||||
| 2271 | template<typename OtherT> | ||||
| 2272 | array_slice (array_slice<OtherT> other) | ||||
| 2273 | : m_base (other.m_base), m_size (other.m_size) {} | ||||
| 2274 | |||||
| 2275 | array_slice (iterator base, unsigned int size) | ||||
| 2276 | : m_base (base), m_size (size) {} | ||||
| 2277 | |||||
| 2278 | template<size_t N> | ||||
| 2279 | array_slice (T (&array)[N]) : m_base (array), m_size (N) {} | ||||
| 2280 | |||||
| 2281 | template<typename OtherT> | ||||
| 2282 | array_slice (const vec<OtherT> &v) | ||||
| 2283 | : m_base (v.address ()), m_size (v.length ()) {} | ||||
| 2284 | |||||
| 2285 | template<typename OtherT> | ||||
| 2286 | array_slice (vec<OtherT> &v) | ||||
| 2287 | : m_base (v.address ()), m_size (v.length ()) {} | ||||
| 2288 | |||||
| 2289 | template<typename OtherT> | ||||
| 2290 | array_slice (const vec<OtherT, va_gc> *v) | ||||
| 2291 | : m_base (v ? v->address () : nullptr), m_size (v ? v->length () : 0) {} | ||||
| 2292 | |||||
| 2293 | template<typename OtherT> | ||||
| 2294 | array_slice (vec<OtherT, va_gc> *v) | ||||
| 2295 | : m_base (v ? v->address () : nullptr), m_size (v ? v->length () : 0) {} | ||||
| 2296 | |||||
| 2297 | iterator begin () { return m_base; } | ||||
| 2298 | iterator end () { return m_base + m_size; } | ||||
| 2299 | |||||
| 2300 | const_iterator begin () const { return m_base; } | ||||
| 2301 | const_iterator end () const { return m_base + m_size; } | ||||
| 2302 | |||||
| 2303 | value_type &front (); | ||||
| 2304 | value_type &back (); | ||||
| 2305 | value_type &operator[] (unsigned int i); | ||||
| 2306 | |||||
| 2307 | const value_type &front () const; | ||||
| 2308 | const value_type &back () const; | ||||
| 2309 | const value_type &operator[] (unsigned int i) const; | ||||
| 2310 | |||||
| 2311 | size_t size () const { return m_size; } | ||||
| 2312 | size_t size_bytes () const { return m_size * sizeof (T); } | ||||
| 2313 | bool empty () const { return m_size == 0; } | ||||
| 2314 | |||||
| 2315 | // An invalid array_slice that represents a failed operation. This is | ||||
| 2316 | // distinct from an empty slice, which is a valid result in some contexts. | ||||
| 2317 | static array_slice invalid () { return { nullptr, ~0U }; } | ||||
| 2318 | |||||
| 2319 | // True if the array is valid, false if it is an array like INVALID. | ||||
| 2320 | bool is_valid () const { return m_base || m_size == 0; } | ||||
| 2321 | |||||
| 2322 | private: | ||||
| 2323 | iterator m_base; | ||||
| 2324 | unsigned int m_size; | ||||
| 2325 | }; | ||||
| 2326 | |||||
| 2327 | template<typename T> | ||||
| 2328 | inline typename array_slice<T>::value_type & | ||||
| 2329 | array_slice<T>::front () | ||||
| 2330 | { | ||||
| 2331 | gcc_checking_assert (m_size)((void)(!(m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2331, __FUNCTION__), 0 : 0)); | ||||
| 2332 | return m_base[0]; | ||||
| 2333 | } | ||||
| 2334 | |||||
| 2335 | template<typename T> | ||||
| 2336 | inline const typename array_slice<T>::value_type & | ||||
| 2337 | array_slice<T>::front () const | ||||
| 2338 | { | ||||
| 2339 | gcc_checking_assert (m_size)((void)(!(m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2339, __FUNCTION__), 0 : 0)); | ||||
| 2340 | return m_base[0]; | ||||
| 2341 | } | ||||
| 2342 | |||||
| 2343 | template<typename T> | ||||
| 2344 | inline typename array_slice<T>::value_type & | ||||
| 2345 | array_slice<T>::back () | ||||
| 2346 | { | ||||
| 2347 | gcc_checking_assert (m_size)((void)(!(m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2347, __FUNCTION__), 0 : 0)); | ||||
| 2348 | return m_base[m_size - 1]; | ||||
| 2349 | } | ||||
| 2350 | |||||
| 2351 | template<typename T> | ||||
| 2352 | inline const typename array_slice<T>::value_type & | ||||
| 2353 | array_slice<T>::back () const | ||||
| 2354 | { | ||||
| 2355 | gcc_checking_assert (m_size)((void)(!(m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2355, __FUNCTION__), 0 : 0)); | ||||
| 2356 | return m_base[m_size - 1]; | ||||
| 2357 | } | ||||
| 2358 | |||||
| 2359 | template<typename T> | ||||
| 2360 | inline typename array_slice<T>::value_type & | ||||
| 2361 | array_slice<T>::operator[] (unsigned int i) | ||||
| 2362 | { | ||||
| 2363 | gcc_checking_assert (i < m_size)((void)(!(i < m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2363, __FUNCTION__), 0 : 0)); | ||||
| 2364 | return m_base[i]; | ||||
| 2365 | } | ||||
| 2366 | |||||
| 2367 | template<typename T> | ||||
| 2368 | inline const typename array_slice<T>::value_type & | ||||
| 2369 | array_slice<T>::operator[] (unsigned int i) const | ||||
| 2370 | { | ||||
| 2371 | gcc_checking_assert (i < m_size)((void)(!(i < m_size) ? fancy_abort ("/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/vec.h" , 2371, __FUNCTION__), 0 : 0)); | ||||
| 2372 | return m_base[i]; | ||||
| 2373 | } | ||||
| 2374 | |||||
| 2375 | template<typename T> | ||||
| 2376 | array_slice<T> | ||||
| 2377 | make_array_slice (T *base, unsigned int size) | ||||
| 2378 | { | ||||
| 2379 | return array_slice<T> (base, size); | ||||
| 2380 | } | ||||
| 2381 | |||||
| 2382 | #if (GCC_VERSION(4 * 1000 + 2) >= 3000) | ||||
| 2383 | # pragma GCC poison m_vec m_vecpfx m_vecdata | ||||
| 2384 | #endif | ||||
| 2385 | |||||
| 2386 | #endif // GCC_VEC_H |