Mercurial > hg > CbC > CbC_gcc
annotate gcc/targhooks.c @ 108:7ad14f446135
add CbC-example/rectypeTest/
| author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 14 Jun 2012 20:30:24 +0900 |
| parents | f6334be47118 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Default target hook functions. |
|
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2 Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010 |
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3 Free Software Foundation, Inc. |
| 0 | 4 |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 /* The migration of target macros to target hooks works as follows: | |
| 22 | |
| 23 1. Create a target hook that uses the existing target macros to | |
| 24 implement the same functionality. | |
| 25 | |
| 26 2. Convert all the MI files to use the hook instead of the macro. | |
| 27 | |
| 28 3. Repeat for a majority of the remaining target macros. This will | |
| 29 take some time. | |
| 30 | |
| 31 4. Tell target maintainers to start migrating. | |
| 32 | |
| 33 5. Eventually convert the backends to override the hook instead of | |
| 34 defining the macros. This will take some time too. | |
| 35 | |
| 36 6. TBD when, poison the macros. Unmigrated targets will break at | |
| 37 this point. | |
| 38 | |
| 39 Note that we expect steps 1-3 to be done by the people that | |
| 40 understand what the MI does with each macro, and step 5 to be done | |
| 41 by the target maintainers for their respective targets. | |
| 42 | |
| 43 Note that steps 1 and 2 don't have to be done together, but no | |
| 44 target can override the new hook until step 2 is complete for it. | |
| 45 | |
| 46 Once the macros are poisoned, we will revert to the old migration | |
| 47 rules - migrate the macro, callers, and targets all at once. This | |
| 48 comment can thus be removed at that point. */ | |
| 49 | |
| 50 #include "config.h" | |
| 51 #include "system.h" | |
| 52 #include "coretypes.h" | |
| 53 #include "tm.h" | |
| 54 #include "machmode.h" | |
| 55 #include "rtl.h" | |
| 56 #include "tree.h" | |
| 57 #include "expr.h" | |
| 58 #include "output.h" | |
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59 #include "diagnostic-core.h" |
| 0 | 60 #include "function.h" |
| 61 #include "target.h" | |
| 62 #include "tm_p.h" | |
| 63 #include "target-def.h" | |
| 64 #include "ggc.h" | |
| 65 #include "hard-reg-set.h" | |
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66 #include "regs.h" |
| 0 | 67 #include "reload.h" |
| 68 #include "optabs.h" | |
| 69 #include "recog.h" | |
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70 #include "intl.h" |
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71 #include "opts.h" |
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72 #include "tree-flow.h" |
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73 #include "tree-ssa-alias.h" |
| 0 | 74 |
| 75 | |
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76 bool |
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77 default_legitimate_address_p (enum machine_mode mode ATTRIBUTE_UNUSED, |
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78 rtx addr ATTRIBUTE_UNUSED, |
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79 bool strict ATTRIBUTE_UNUSED) |
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80 { |
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81 #ifdef GO_IF_LEGITIMATE_ADDRESS |
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82 /* Defer to the old implementation using a goto. */ |
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83 if (strict) |
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84 return strict_memory_address_p (mode, addr); |
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85 else |
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86 return memory_address_p (mode, addr); |
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87 #else |
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88 gcc_unreachable (); |
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89 #endif |
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90 } |
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91 |
| 0 | 92 void |
| 93 default_external_libcall (rtx fun ATTRIBUTE_UNUSED) | |
| 94 { | |
| 95 #ifdef ASM_OUTPUT_EXTERNAL_LIBCALL | |
| 96 ASM_OUTPUT_EXTERNAL_LIBCALL(asm_out_file, fun); | |
| 97 #endif | |
| 98 } | |
| 99 | |
| 100 int | |
| 101 default_unspec_may_trap_p (const_rtx x, unsigned flags) | |
| 102 { | |
| 103 int i; | |
| 104 | |
| 105 if (GET_CODE (x) == UNSPEC_VOLATILE | |
| 106 /* Any floating arithmetic may trap. */ | |
| 107 || (SCALAR_FLOAT_MODE_P (GET_MODE (x)) | |
| 108 && flag_trapping_math)) | |
| 109 return 1; | |
| 110 | |
| 111 for (i = 0; i < XVECLEN (x, 0); ++i) | |
| 112 { | |
| 113 if (may_trap_p_1 (XVECEXP (x, 0, i), flags)) | |
| 114 return 1; | |
| 115 } | |
| 116 | |
| 117 return 0; | |
| 118 } | |
| 119 | |
| 120 enum machine_mode | |
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121 default_promote_function_mode (const_tree type ATTRIBUTE_UNUSED, |
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122 enum machine_mode mode, |
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123 int *punsignedp ATTRIBUTE_UNUSED, |
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124 const_tree funtype ATTRIBUTE_UNUSED, |
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125 int for_return ATTRIBUTE_UNUSED) |
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126 { |
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127 if (for_return == 2) |
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128 return promote_mode (type, mode, punsignedp); |
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129 return mode; |
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130 } |
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131 |
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132 enum machine_mode |
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133 default_promote_function_mode_always_promote (const_tree type, |
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134 enum machine_mode mode, |
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135 int *punsignedp, |
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136 const_tree funtype ATTRIBUTE_UNUSED, |
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137 int for_return ATTRIBUTE_UNUSED) |
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138 { |
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139 return promote_mode (type, mode, punsignedp); |
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140 } |
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141 |
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142 |
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143 enum machine_mode |
| 0 | 144 default_cc_modes_compatible (enum machine_mode m1, enum machine_mode m2) |
| 145 { | |
| 146 if (m1 == m2) | |
| 147 return m1; | |
| 148 return VOIDmode; | |
| 149 } | |
| 150 | |
| 151 bool | |
| 152 default_return_in_memory (const_tree type, | |
| 153 const_tree fntype ATTRIBUTE_UNUSED) | |
| 154 { | |
| 155 return (TYPE_MODE (type) == BLKmode); | |
| 156 } | |
| 157 | |
| 158 rtx | |
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159 default_legitimize_address (rtx x, rtx orig_x ATTRIBUTE_UNUSED, |
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160 enum machine_mode mode ATTRIBUTE_UNUSED) |
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161 { |
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162 return x; |
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163 } |
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164 |
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165 rtx |
| 0 | 166 default_expand_builtin_saveregs (void) |
| 167 { | |
| 168 error ("__builtin_saveregs not supported by this target"); | |
| 169 return const0_rtx; | |
| 170 } | |
| 171 | |
| 172 void | |
| 173 default_setup_incoming_varargs (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
| 174 enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 175 tree type ATTRIBUTE_UNUSED, | |
| 176 int *pretend_arg_size ATTRIBUTE_UNUSED, | |
| 177 int second_time ATTRIBUTE_UNUSED) | |
| 178 { | |
| 179 } | |
| 180 | |
| 181 /* The default implementation of TARGET_BUILTIN_SETJMP_FRAME_VALUE. */ | |
| 182 | |
| 183 rtx | |
| 184 default_builtin_setjmp_frame_value (void) | |
| 185 { | |
| 186 return virtual_stack_vars_rtx; | |
| 187 } | |
| 188 | |
| 189 /* Generic hook that takes a CUMULATIVE_ARGS pointer and returns false. */ | |
| 190 | |
| 191 bool | |
| 192 hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED) | |
| 193 { | |
| 194 return false; | |
| 195 } | |
| 196 | |
| 197 bool | |
| 198 default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED) | |
| 199 { | |
| 200 return (targetm.calls.setup_incoming_varargs | |
| 201 != default_setup_incoming_varargs); | |
| 202 } | |
| 203 | |
| 204 enum machine_mode | |
| 205 default_eh_return_filter_mode (void) | |
| 206 { | |
| 207 return targetm.unwind_word_mode (); | |
| 208 } | |
| 209 | |
| 210 enum machine_mode | |
| 211 default_libgcc_cmp_return_mode (void) | |
| 212 { | |
| 213 return word_mode; | |
| 214 } | |
| 215 | |
| 216 enum machine_mode | |
| 217 default_libgcc_shift_count_mode (void) | |
| 218 { | |
| 219 return word_mode; | |
| 220 } | |
| 221 | |
| 222 enum machine_mode | |
| 223 default_unwind_word_mode (void) | |
| 224 { | |
| 225 return word_mode; | |
| 226 } | |
| 227 | |
| 228 /* The default implementation of TARGET_SHIFT_TRUNCATION_MASK. */ | |
| 229 | |
| 230 unsigned HOST_WIDE_INT | |
| 231 default_shift_truncation_mask (enum machine_mode mode) | |
| 232 { | |
| 233 return SHIFT_COUNT_TRUNCATED ? GET_MODE_BITSIZE (mode) - 1 : 0; | |
| 234 } | |
| 235 | |
| 236 /* The default implementation of TARGET_MIN_DIVISIONS_FOR_RECIP_MUL. */ | |
| 237 | |
| 238 unsigned int | |
| 239 default_min_divisions_for_recip_mul (enum machine_mode mode ATTRIBUTE_UNUSED) | |
| 240 { | |
| 241 return have_insn_for (DIV, mode) ? 3 : 2; | |
| 242 } | |
| 243 | |
| 244 /* The default implementation of TARGET_MODE_REP_EXTENDED. */ | |
| 245 | |
| 246 int | |
| 247 default_mode_rep_extended (enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 248 enum machine_mode mode_rep ATTRIBUTE_UNUSED) | |
| 249 { | |
| 250 return UNKNOWN; | |
| 251 } | |
| 252 | |
| 253 /* Generic hook that takes a CUMULATIVE_ARGS pointer and returns true. */ | |
| 254 | |
| 255 bool | |
| 256 hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS * a ATTRIBUTE_UNUSED) | |
| 257 { | |
| 258 return true; | |
| 259 } | |
| 260 | |
| 261 /* Return machine mode for non-standard suffix | |
| 262 or VOIDmode if non-standard suffixes are unsupported. */ | |
| 263 enum machine_mode | |
| 264 default_mode_for_suffix (char suffix ATTRIBUTE_UNUSED) | |
| 265 { | |
| 266 return VOIDmode; | |
| 267 } | |
| 268 | |
| 269 /* The generic C++ ABI specifies this is a 64-bit value. */ | |
| 270 tree | |
| 271 default_cxx_guard_type (void) | |
| 272 { | |
| 273 return long_long_integer_type_node; | |
| 274 } | |
| 275 | |
| 276 | |
| 277 /* Returns the size of the cookie to use when allocating an array | |
| 278 whose elements have the indicated TYPE. Assumes that it is already | |
| 279 known that a cookie is needed. */ | |
| 280 | |
| 281 tree | |
| 282 default_cxx_get_cookie_size (tree type) | |
| 283 { | |
| 284 tree cookie_size; | |
| 285 | |
| 286 /* We need to allocate an additional max (sizeof (size_t), alignof | |
| 287 (true_type)) bytes. */ | |
| 288 tree sizetype_size; | |
| 289 tree type_align; | |
| 290 | |
| 291 sizetype_size = size_in_bytes (sizetype); | |
| 292 type_align = size_int (TYPE_ALIGN_UNIT (type)); | |
| 293 if (INT_CST_LT_UNSIGNED (type_align, sizetype_size)) | |
| 294 cookie_size = sizetype_size; | |
| 295 else | |
| 296 cookie_size = type_align; | |
| 297 | |
| 298 return cookie_size; | |
| 299 } | |
| 300 | |
| 301 /* Return true if a parameter must be passed by reference. This version | |
| 302 of the TARGET_PASS_BY_REFERENCE hook uses just MUST_PASS_IN_STACK. */ | |
| 303 | |
| 304 bool | |
| 305 hook_pass_by_reference_must_pass_in_stack (CUMULATIVE_ARGS *c ATTRIBUTE_UNUSED, | |
| 306 enum machine_mode mode ATTRIBUTE_UNUSED, const_tree type ATTRIBUTE_UNUSED, | |
| 307 bool named_arg ATTRIBUTE_UNUSED) | |
| 308 { | |
| 309 return targetm.calls.must_pass_in_stack (mode, type); | |
| 310 } | |
| 311 | |
| 312 /* Return true if a parameter follows callee copies conventions. This | |
| 313 version of the hook is true for all named arguments. */ | |
| 314 | |
| 315 bool | |
| 316 hook_callee_copies_named (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
| 317 enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 318 const_tree type ATTRIBUTE_UNUSED, bool named) | |
| 319 { | |
| 320 return named; | |
| 321 } | |
| 322 | |
|
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323 /* Emit to STREAM the assembler syntax for insn operand X. */ |
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324 |
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325 void |
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326 default_print_operand (FILE *stream ATTRIBUTE_UNUSED, rtx x ATTRIBUTE_UNUSED, |
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327 int code ATTRIBUTE_UNUSED) |
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328 { |
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329 #ifdef PRINT_OPERAND |
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330 PRINT_OPERAND (stream, x, code); |
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331 #else |
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332 gcc_unreachable (); |
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333 #endif |
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334 } |
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335 |
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336 /* Emit to STREAM the assembler syntax for an insn operand whose memory |
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337 address is X. */ |
| 0 | 338 |
| 339 void | |
|
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340 default_print_operand_address (FILE *stream ATTRIBUTE_UNUSED, |
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341 rtx x ATTRIBUTE_UNUSED) |
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342 { |
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343 #ifdef PRINT_OPERAND_ADDRESS |
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344 PRINT_OPERAND_ADDRESS (stream, x); |
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345 #else |
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346 gcc_unreachable (); |
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347 #endif |
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348 } |
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349 |
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350 /* Return true if CODE is a valid punctuation character for the |
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351 `print_operand' hook. */ |
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352 |
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353 bool |
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354 default_print_operand_punct_valid_p (unsigned char code ATTRIBUTE_UNUSED) |
| 0 | 355 { |
|
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356 #ifdef PRINT_OPERAND_PUNCT_VALID_P |
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357 return PRINT_OPERAND_PUNCT_VALID_P (code); |
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358 #else |
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359 return false; |
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360 #endif |
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361 } |
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362 |
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363 /* The default implementation of TARGET_MANGLE_ASSEMBLER_NAME. */ |
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364 tree |
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365 default_mangle_assembler_name (const char *name ATTRIBUTE_UNUSED) |
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366 { |
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367 const char *skipped = name + (*name == '*' ? 1 : 0); |
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368 const char *stripped = targetm.strip_name_encoding (skipped); |
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369 if (*name != '*' && user_label_prefix[0]) |
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370 stripped = ACONCAT ((user_label_prefix, stripped, NULL)); |
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371 return get_identifier (stripped); |
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372 } |
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373 |
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374 /* The default implementation of TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA. */ |
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375 |
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376 bool |
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377 default_asm_output_addr_const_extra (FILE *file ATTRIBUTE_UNUSED, |
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378 rtx x ATTRIBUTE_UNUSED) |
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379 { |
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380 #ifdef OUTPUT_ADDR_CONST_EXTRA |
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381 OUTPUT_ADDR_CONST_EXTRA (file, x, fail); |
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382 return true; |
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383 |
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384 fail: |
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385 #endif |
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386 return false; |
| 0 | 387 } |
| 388 | |
| 389 /* True if MODE is valid for the target. By "valid", we mean able to | |
| 390 be manipulated in non-trivial ways. In particular, this means all | |
| 391 the arithmetic is supported. | |
| 392 | |
| 393 By default we guess this means that any C type is supported. If | |
| 394 we can't map the mode back to a type that would be available in C, | |
| 395 then reject it. Special case, here, is the double-word arithmetic | |
| 396 supported by optabs.c. */ | |
| 397 | |
| 398 bool | |
| 399 default_scalar_mode_supported_p (enum machine_mode mode) | |
| 400 { | |
| 401 int precision = GET_MODE_PRECISION (mode); | |
| 402 | |
| 403 switch (GET_MODE_CLASS (mode)) | |
| 404 { | |
| 405 case MODE_PARTIAL_INT: | |
| 406 case MODE_INT: | |
| 407 if (precision == CHAR_TYPE_SIZE) | |
| 408 return true; | |
| 409 if (precision == SHORT_TYPE_SIZE) | |
| 410 return true; | |
| 411 if (precision == INT_TYPE_SIZE) | |
| 412 return true; | |
| 413 if (precision == LONG_TYPE_SIZE) | |
| 414 return true; | |
| 415 if (precision == LONG_LONG_TYPE_SIZE) | |
| 416 return true; | |
| 417 if (precision == 2 * BITS_PER_WORD) | |
| 418 return true; | |
| 419 return false; | |
| 420 | |
| 421 case MODE_FLOAT: | |
| 422 if (precision == FLOAT_TYPE_SIZE) | |
| 423 return true; | |
| 424 if (precision == DOUBLE_TYPE_SIZE) | |
| 425 return true; | |
| 426 if (precision == LONG_DOUBLE_TYPE_SIZE) | |
| 427 return true; | |
| 428 return false; | |
| 429 | |
| 430 case MODE_DECIMAL_FLOAT: | |
| 431 case MODE_FRACT: | |
| 432 case MODE_UFRACT: | |
| 433 case MODE_ACCUM: | |
| 434 case MODE_UACCUM: | |
| 435 return false; | |
| 436 | |
| 437 default: | |
| 438 gcc_unreachable (); | |
| 439 } | |
| 440 } | |
| 441 | |
|
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442 /* Make some target macros useable by target-independent code. */ |
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443 bool |
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444 targhook_words_big_endian (void) |
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445 { |
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446 return !!WORDS_BIG_ENDIAN; |
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447 } |
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448 |
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449 bool |
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450 targhook_float_words_big_endian (void) |
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451 { |
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452 return !!FLOAT_WORDS_BIG_ENDIAN; |
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453 } |
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454 |
| 0 | 455 /* True if the target supports decimal floating point. */ |
| 456 | |
| 457 bool | |
| 458 default_decimal_float_supported_p (void) | |
| 459 { | |
| 460 return ENABLE_DECIMAL_FLOAT; | |
| 461 } | |
| 462 | |
| 463 /* True if the target supports fixed-point arithmetic. */ | |
| 464 | |
| 465 bool | |
| 466 default_fixed_point_supported_p (void) | |
| 467 { | |
| 468 return ENABLE_FIXED_POINT; | |
| 469 } | |
| 470 | |
| 471 /* NULL if INSN insn is valid within a low-overhead loop, otherwise returns | |
| 472 an error message. | |
|
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473 |
| 0 | 474 This function checks whether a given INSN is valid within a low-overhead |
| 475 loop. If INSN is invalid it returns the reason for that, otherwise it | |
| 476 returns NULL. A called function may clobber any special registers required | |
| 477 for low-overhead looping. Additionally, some targets (eg, PPC) use the count | |
| 478 register for branch on table instructions. We reject the doloop pattern in | |
| 479 these cases. */ | |
| 480 | |
| 481 const char * | |
| 482 default_invalid_within_doloop (const_rtx insn) | |
| 483 { | |
| 484 if (CALL_P (insn)) | |
| 485 return "Function call in loop."; | |
|
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486 |
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487 if (JUMP_TABLE_DATA_P (insn)) |
| 0 | 488 return "Computed branch in the loop."; |
|
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489 |
| 0 | 490 return NULL; |
| 491 } | |
| 492 | |
| 493 /* Mapping of builtin functions to vectorized variants. */ | |
| 494 | |
| 495 tree | |
|
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496 default_builtin_vectorized_function (tree fndecl ATTRIBUTE_UNUSED, |
| 0 | 497 tree type_out ATTRIBUTE_UNUSED, |
| 498 tree type_in ATTRIBUTE_UNUSED) | |
| 499 { | |
| 500 return NULL_TREE; | |
| 501 } | |
| 502 | |
| 503 /* Vectorized conversion. */ | |
| 504 | |
| 505 tree | |
|
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506 default_builtin_vectorized_conversion (unsigned int code ATTRIBUTE_UNUSED, |
|
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507 tree dest_type ATTRIBUTE_UNUSED, |
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508 tree src_type ATTRIBUTE_UNUSED) |
| 0 | 509 { |
| 510 return NULL_TREE; | |
| 511 } | |
| 512 | |
|
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513 /* Default vectorizer cost model values. */ |
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514 |
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515 int |
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516 default_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost, |
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517 tree vectype ATTRIBUTE_UNUSED, |
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518 int misalign ATTRIBUTE_UNUSED) |
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519 { |
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520 switch (type_of_cost) |
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521 { |
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522 case scalar_stmt: |
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523 case scalar_load: |
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524 case scalar_store: |
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525 case vector_stmt: |
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526 case vector_load: |
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527 case vector_store: |
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528 case vec_to_scalar: |
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529 case scalar_to_vec: |
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530 case cond_branch_not_taken: |
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531 case vec_perm: |
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532 return 1; |
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533 |
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534 case unaligned_load: |
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535 case unaligned_store: |
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536 return 2; |
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537 |
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538 case cond_branch_taken: |
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539 return 3; |
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540 |
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541 default: |
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542 gcc_unreachable (); |
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543 } |
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544 } |
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545 |
| 0 | 546 /* Reciprocal. */ |
| 547 | |
| 548 tree | |
|
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549 default_builtin_reciprocal (unsigned int fn ATTRIBUTE_UNUSED, |
| 0 | 550 bool md_fn ATTRIBUTE_UNUSED, |
| 551 bool sqrt ATTRIBUTE_UNUSED) | |
| 552 { | |
| 553 return NULL_TREE; | |
| 554 } | |
| 555 | |
| 556 bool | |
| 557 hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false ( | |
| 558 CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
| 559 enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 560 const_tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED) | |
| 561 { | |
| 562 return false; | |
| 563 } | |
| 564 | |
| 565 bool | |
| 566 hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true ( | |
| 567 CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
| 568 enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 569 const_tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED) | |
| 570 { | |
| 571 return true; | |
| 572 } | |
| 573 | |
| 574 int | |
| 575 hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 ( | |
| 576 CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
| 577 enum machine_mode mode ATTRIBUTE_UNUSED, | |
| 578 tree type ATTRIBUTE_UNUSED, bool named ATTRIBUTE_UNUSED) | |
| 579 { | |
| 580 return 0; | |
| 581 } | |
| 582 | |
|
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583 void |
|
67
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584 default_function_arg_advance (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, |
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585 enum machine_mode mode ATTRIBUTE_UNUSED, |
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586 const_tree type ATTRIBUTE_UNUSED, |
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587 bool named ATTRIBUTE_UNUSED) |
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588 { |
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589 #ifdef FUNCTION_ARG_ADVANCE |
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590 CUMULATIVE_ARGS args = *ca; |
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591 FUNCTION_ARG_ADVANCE (args, mode, CONST_CAST_TREE (type), named); |
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592 *ca = args; |
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593 #else |
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594 gcc_unreachable (); |
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595 #endif |
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596 } |
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597 |
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598 rtx |
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599 default_function_arg (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, |
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600 enum machine_mode mode ATTRIBUTE_UNUSED, |
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601 const_tree type ATTRIBUTE_UNUSED, |
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602 bool named ATTRIBUTE_UNUSED) |
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603 { |
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604 #ifdef FUNCTION_ARG |
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605 return FUNCTION_ARG (*ca, mode, CONST_CAST_TREE (type), named); |
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606 #else |
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607 gcc_unreachable (); |
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608 #endif |
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609 } |
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610 |
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611 rtx |
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612 default_function_incoming_arg (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, |
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613 enum machine_mode mode ATTRIBUTE_UNUSED, |
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614 const_tree type ATTRIBUTE_UNUSED, |
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615 bool named ATTRIBUTE_UNUSED) |
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616 { |
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617 #ifdef FUNCTION_INCOMING_ARG |
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618 return FUNCTION_INCOMING_ARG (*ca, mode, CONST_CAST_TREE (type), named); |
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619 #else |
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620 gcc_unreachable (); |
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621 #endif |
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622 } |
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623 |
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624 unsigned int |
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625 default_function_arg_boundary (enum machine_mode mode ATTRIBUTE_UNUSED, |
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626 const_tree type ATTRIBUTE_UNUSED) |
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627 { |
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628 return PARM_BOUNDARY; |
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629 } |
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630 |
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631 void |
| 0 | 632 hook_void_bitmap (bitmap regs ATTRIBUTE_UNUSED) |
| 633 { | |
| 634 } | |
| 635 | |
| 636 const char * | |
| 637 hook_invalid_arg_for_unprototyped_fn ( | |
| 638 const_tree typelist ATTRIBUTE_UNUSED, | |
| 639 const_tree funcdecl ATTRIBUTE_UNUSED, | |
| 640 const_tree val ATTRIBUTE_UNUSED) | |
| 641 { | |
| 642 return NULL; | |
| 643 } | |
| 644 | |
| 645 /* Initialize the stack protection decls. */ | |
| 646 | |
| 647 /* Stack protection related decls living in libgcc. */ | |
| 648 static GTY(()) tree stack_chk_guard_decl; | |
| 649 | |
| 650 tree | |
| 651 default_stack_protect_guard (void) | |
| 652 { | |
| 653 tree t = stack_chk_guard_decl; | |
| 654 | |
| 655 if (t == NULL) | |
| 656 { | |
|
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657 rtx x; |
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658 |
|
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659 t = build_decl (UNKNOWN_LOCATION, |
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660 VAR_DECL, get_identifier ("__stack_chk_guard"), |
| 0 | 661 ptr_type_node); |
| 662 TREE_STATIC (t) = 1; | |
| 663 TREE_PUBLIC (t) = 1; | |
| 664 DECL_EXTERNAL (t) = 1; | |
| 665 TREE_USED (t) = 1; | |
| 666 TREE_THIS_VOLATILE (t) = 1; | |
| 667 DECL_ARTIFICIAL (t) = 1; | |
| 668 DECL_IGNORED_P (t) = 1; | |
| 669 | |
|
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670 /* Do not share RTL as the declaration is visible outside of |
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671 current function. */ |
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672 x = DECL_RTL (t); |
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673 RTX_FLAG (x, used) = 1; |
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674 |
| 0 | 675 stack_chk_guard_decl = t; |
| 676 } | |
| 677 | |
| 678 return t; | |
| 679 } | |
| 680 | |
| 681 static GTY(()) tree stack_chk_fail_decl; | |
| 682 | |
|
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683 tree |
| 0 | 684 default_external_stack_protect_fail (void) |
| 685 { | |
| 686 tree t = stack_chk_fail_decl; | |
| 687 | |
| 688 if (t == NULL_TREE) | |
| 689 { | |
| 690 t = build_function_type_list (void_type_node, NULL_TREE); | |
|
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691 t = build_decl (UNKNOWN_LOCATION, |
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692 FUNCTION_DECL, get_identifier ("__stack_chk_fail"), t); |
| 0 | 693 TREE_STATIC (t) = 1; |
| 694 TREE_PUBLIC (t) = 1; | |
| 695 DECL_EXTERNAL (t) = 1; | |
| 696 TREE_USED (t) = 1; | |
| 697 TREE_THIS_VOLATILE (t) = 1; | |
| 698 TREE_NOTHROW (t) = 1; | |
| 699 DECL_ARTIFICIAL (t) = 1; | |
| 700 DECL_IGNORED_P (t) = 1; | |
| 701 DECL_VISIBILITY (t) = VISIBILITY_DEFAULT; | |
| 702 DECL_VISIBILITY_SPECIFIED (t) = 1; | |
| 703 | |
| 704 stack_chk_fail_decl = t; | |
| 705 } | |
| 706 | |
| 707 return build_call_expr (t, 0); | |
| 708 } | |
| 709 | |
| 710 tree | |
| 711 default_hidden_stack_protect_fail (void) | |
| 712 { | |
| 713 #ifndef HAVE_GAS_HIDDEN | |
| 714 return default_external_stack_protect_fail (); | |
| 715 #else | |
| 716 tree t = stack_chk_fail_decl; | |
| 717 | |
| 718 if (!flag_pic) | |
| 719 return default_external_stack_protect_fail (); | |
| 720 | |
| 721 if (t == NULL_TREE) | |
| 722 { | |
| 723 t = build_function_type_list (void_type_node, NULL_TREE); | |
|
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724 t = build_decl (UNKNOWN_LOCATION, FUNCTION_DECL, |
| 0 | 725 get_identifier ("__stack_chk_fail_local"), t); |
| 726 TREE_STATIC (t) = 1; | |
| 727 TREE_PUBLIC (t) = 1; | |
| 728 DECL_EXTERNAL (t) = 1; | |
| 729 TREE_USED (t) = 1; | |
| 730 TREE_THIS_VOLATILE (t) = 1; | |
| 731 TREE_NOTHROW (t) = 1; | |
| 732 DECL_ARTIFICIAL (t) = 1; | |
| 733 DECL_IGNORED_P (t) = 1; | |
| 734 DECL_VISIBILITY_SPECIFIED (t) = 1; | |
| 735 DECL_VISIBILITY (t) = VISIBILITY_HIDDEN; | |
| 736 | |
| 737 stack_chk_fail_decl = t; | |
| 738 } | |
| 739 | |
| 740 return build_call_expr (t, 0); | |
| 741 #endif | |
| 742 } | |
| 743 | |
| 744 bool | |
| 745 hook_bool_const_rtx_commutative_p (const_rtx x, | |
| 746 int outer_code ATTRIBUTE_UNUSED) | |
| 747 { | |
| 748 return COMMUTATIVE_P (x); | |
| 749 } | |
| 750 | |
| 751 rtx | |
| 752 default_function_value (const_tree ret_type ATTRIBUTE_UNUSED, | |
| 753 const_tree fn_decl_or_type, | |
| 754 bool outgoing ATTRIBUTE_UNUSED) | |
| 755 { | |
| 756 /* The old interface doesn't handle receiving the function type. */ | |
| 757 if (fn_decl_or_type | |
| 758 && !DECL_P (fn_decl_or_type)) | |
| 759 fn_decl_or_type = NULL; | |
| 760 | |
| 761 #ifdef FUNCTION_VALUE | |
| 762 return FUNCTION_VALUE (ret_type, fn_decl_or_type); | |
| 763 #else | |
|
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764 gcc_unreachable (); |
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765 #endif |
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766 } |
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767 |
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768 rtx |
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769 default_libcall_value (enum machine_mode mode ATTRIBUTE_UNUSED, |
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770 const_rtx fun ATTRIBUTE_UNUSED) |
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771 { |
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772 #ifdef LIBCALL_VALUE |
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773 return LIBCALL_VALUE (mode); |
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774 #else |
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775 gcc_unreachable (); |
| 0 | 776 #endif |
| 777 } | |
| 778 | |
|
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779 /* The default hook for TARGET_FUNCTION_VALUE_REGNO_P. */ |
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780 |
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781 bool |
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782 default_function_value_regno_p (const unsigned int regno ATTRIBUTE_UNUSED) |
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783 { |
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784 #ifdef FUNCTION_VALUE_REGNO_P |
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785 return FUNCTION_VALUE_REGNO_P (regno); |
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786 #else |
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787 gcc_unreachable (); |
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788 #endif |
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789 } |
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790 |
| 0 | 791 rtx |
| 792 default_internal_arg_pointer (void) | |
| 793 { | |
| 794 /* If the reg that the virtual arg pointer will be translated into is | |
| 795 not a fixed reg or is the stack pointer, make a copy of the virtual | |
| 796 arg pointer, and address parms via the copy. The frame pointer is | |
| 797 considered fixed even though it is not marked as such. */ | |
| 798 if ((ARG_POINTER_REGNUM == STACK_POINTER_REGNUM | |
| 799 || ! (fixed_regs[ARG_POINTER_REGNUM] | |
| 800 || ARG_POINTER_REGNUM == FRAME_POINTER_REGNUM))) | |
| 801 return copy_to_reg (virtual_incoming_args_rtx); | |
| 802 else | |
| 803 return virtual_incoming_args_rtx; | |
| 804 } | |
| 805 | |
|
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806 rtx |
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807 default_static_chain (const_tree fndecl, bool incoming_p) |
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808 { |
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809 if (!DECL_STATIC_CHAIN (fndecl)) |
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810 return NULL; |
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811 |
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812 if (incoming_p) |
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813 { |
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814 #ifdef STATIC_CHAIN_INCOMING_REGNUM |
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815 return gen_rtx_REG (Pmode, STATIC_CHAIN_INCOMING_REGNUM); |
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816 #endif |
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817 } |
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818 |
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819 #ifdef STATIC_CHAIN_REGNUM |
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820 return gen_rtx_REG (Pmode, STATIC_CHAIN_REGNUM); |
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821 #endif |
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822 |
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823 { |
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824 static bool issued_error; |
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825 if (!issued_error) |
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826 { |
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827 issued_error = true; |
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828 sorry ("nested functions not supported on this target"); |
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829 } |
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830 |
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831 /* It really doesn't matter what we return here, so long at it |
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832 doesn't cause the rest of the compiler to crash. */ |
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833 return gen_rtx_MEM (Pmode, stack_pointer_rtx); |
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834 } |
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835 } |
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836 |
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837 void |
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838 default_trampoline_init (rtx ARG_UNUSED (m_tramp), tree ARG_UNUSED (t_func), |
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839 rtx ARG_UNUSED (r_chain)) |
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840 { |
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841 sorry ("nested function trampolines not supported on this target"); |
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842 } |
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843 |
|
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844 int |
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845 default_return_pops_args (tree fundecl ATTRIBUTE_UNUSED, |
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846 tree funtype ATTRIBUTE_UNUSED, |
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847 int size ATTRIBUTE_UNUSED) |
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848 { |
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849 return 0; |
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850 } |
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851 |
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852 reg_class_t |
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853 default_branch_target_register_class (void) |
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854 { |
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855 return NO_REGS; |
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856 } |
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857 |
| 0 | 858 #ifdef IRA_COVER_CLASSES |
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859 const reg_class_t * |
| 0 | 860 default_ira_cover_classes (void) |
| 861 { | |
|
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862 static reg_class_t classes[] = IRA_COVER_CLASSES; |
| 0 | 863 return classes; |
| 864 } | |
| 865 #endif | |
| 866 | |
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867 reg_class_t |
| 0 | 868 default_secondary_reload (bool in_p ATTRIBUTE_UNUSED, rtx x ATTRIBUTE_UNUSED, |
|
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869 reg_class_t reload_class_i ATTRIBUTE_UNUSED, |
| 0 | 870 enum machine_mode reload_mode ATTRIBUTE_UNUSED, |
| 871 secondary_reload_info *sri) | |
| 872 { | |
| 873 enum reg_class rclass = NO_REGS; | |
|
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874 enum reg_class reload_class = (enum reg_class) reload_class_i; |
| 0 | 875 |
| 876 if (sri->prev_sri && sri->prev_sri->t_icode != CODE_FOR_nothing) | |
| 877 { | |
| 878 sri->icode = sri->prev_sri->t_icode; | |
| 879 return NO_REGS; | |
| 880 } | |
| 881 #ifdef SECONDARY_INPUT_RELOAD_CLASS | |
| 882 if (in_p) | |
| 883 rclass = SECONDARY_INPUT_RELOAD_CLASS (reload_class, reload_mode, x); | |
| 884 #endif | |
| 885 #ifdef SECONDARY_OUTPUT_RELOAD_CLASS | |
| 886 if (! in_p) | |
| 887 rclass = SECONDARY_OUTPUT_RELOAD_CLASS (reload_class, reload_mode, x); | |
| 888 #endif | |
| 889 if (rclass != NO_REGS) | |
| 890 { | |
|
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891 enum insn_code icode |
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892 = direct_optab_handler (in_p ? reload_in_optab : reload_out_optab, |
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893 reload_mode); |
| 0 | 894 |
| 895 if (icode != CODE_FOR_nothing | |
| 896 && insn_data[(int) icode].operand[in_p].predicate | |
| 897 && ! insn_data[(int) icode].operand[in_p].predicate (x, reload_mode)) | |
| 898 icode = CODE_FOR_nothing; | |
| 899 else if (icode != CODE_FOR_nothing) | |
| 900 { | |
| 901 const char *insn_constraint, *scratch_constraint; | |
| 902 char insn_letter, scratch_letter; | |
| 903 enum reg_class insn_class, scratch_class; | |
| 904 | |
| 905 gcc_assert (insn_data[(int) icode].n_operands == 3); | |
| 906 insn_constraint = insn_data[(int) icode].operand[!in_p].constraint; | |
| 907 if (!*insn_constraint) | |
| 908 insn_class = ALL_REGS; | |
| 909 else | |
| 910 { | |
| 911 if (in_p) | |
| 912 { | |
| 913 gcc_assert (*insn_constraint == '='); | |
| 914 insn_constraint++; | |
| 915 } | |
| 916 insn_letter = *insn_constraint; | |
| 917 insn_class | |
| 918 = (insn_letter == 'r' ? GENERAL_REGS | |
| 919 : REG_CLASS_FROM_CONSTRAINT ((unsigned char) insn_letter, | |
| 920 insn_constraint)); | |
| 921 gcc_assert (insn_class != NO_REGS); | |
| 922 } | |
| 923 | |
| 924 scratch_constraint = insn_data[(int) icode].operand[2].constraint; | |
| 925 /* The scratch register's constraint must start with "=&", | |
| 926 except for an input reload, where only "=" is necessary, | |
| 927 and where it might be beneficial to re-use registers from | |
| 928 the input. */ | |
| 929 gcc_assert (scratch_constraint[0] == '=' | |
| 930 && (in_p || scratch_constraint[1] == '&')); | |
| 931 scratch_constraint++; | |
| 932 if (*scratch_constraint == '&') | |
| 933 scratch_constraint++; | |
| 934 scratch_letter = *scratch_constraint; | |
| 935 scratch_class | |
| 936 = (scratch_letter == 'r' ? GENERAL_REGS | |
| 937 : REG_CLASS_FROM_CONSTRAINT ((unsigned char) scratch_letter, | |
| 938 scratch_constraint)); | |
| 939 | |
| 940 if (reg_class_subset_p (reload_class, insn_class)) | |
| 941 { | |
| 942 gcc_assert (scratch_class == rclass); | |
| 943 rclass = NO_REGS; | |
| 944 } | |
| 945 else | |
| 946 rclass = insn_class; | |
| 947 | |
| 948 } | |
| 949 if (rclass == NO_REGS) | |
| 950 sri->icode = icode; | |
| 951 else | |
| 952 sri->t_icode = icode; | |
| 953 } | |
| 954 return rclass; | |
| 955 } | |
| 956 | |
| 957 bool | |
| 958 default_handle_c_option (size_t code ATTRIBUTE_UNUSED, | |
| 959 const char *arg ATTRIBUTE_UNUSED, | |
| 960 int value ATTRIBUTE_UNUSED) | |
| 961 { | |
| 962 return false; | |
| 963 } | |
| 964 | |
| 965 /* By default, if flag_pic is true, then neither local nor global relocs | |
| 966 should be placed in readonly memory. */ | |
| 967 | |
| 968 int | |
| 969 default_reloc_rw_mask (void) | |
| 970 { | |
| 971 return flag_pic ? 3 : 0; | |
| 972 } | |
| 973 | |
| 974 /* By default, do no modification. */ | |
| 975 tree default_mangle_decl_assembler_name (tree decl ATTRIBUTE_UNUSED, | |
| 976 tree id) | |
| 977 { | |
| 978 return id; | |
| 979 } | |
| 980 | |
| 981 bool | |
| 982 default_builtin_vector_alignment_reachable (const_tree type, bool is_packed) | |
| 983 { | |
| 984 if (is_packed) | |
| 985 return false; | |
| 986 | |
| 987 /* Assuming that types whose size is > pointer-size are not guaranteed to be | |
| 988 naturally aligned. */ | |
| 989 if (tree_int_cst_compare (TYPE_SIZE (type), bitsize_int (POINTER_SIZE)) > 0) | |
| 990 return false; | |
| 991 | |
| 992 /* Assuming that types whose size is <= pointer-size | |
| 993 are naturally aligned. */ | |
| 994 return true; | |
| 995 } | |
| 996 | |
|
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997 /* By default, assume that a target supports any factor of misalignment |
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998 memory access if it supports movmisalign patten. |
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999 is_packed is true if the memory access is defined in a packed struct. */ |
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1000 bool |
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1001 default_builtin_support_vector_misalignment (enum machine_mode mode, |
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1002 const_tree type |
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1003 ATTRIBUTE_UNUSED, |
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1004 int misalignment |
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1005 ATTRIBUTE_UNUSED, |
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1006 bool is_packed |
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1007 ATTRIBUTE_UNUSED) |
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1008 { |
|
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1009 if (optab_handler (movmisalign_optab, mode) != CODE_FOR_nothing) |
|
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1010 return true; |
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1011 return false; |
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1012 } |
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1013 |
|
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1014 /* By default, only attempt to parallelize bitwise operations, and |
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1015 possibly adds/subtracts using bit-twiddling. */ |
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1016 |
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1017 enum machine_mode |
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1018 default_preferred_simd_mode (enum machine_mode mode ATTRIBUTE_UNUSED) |
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1019 { |
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1020 return word_mode; |
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1021 } |
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1022 |
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1023 /* By default only the size derived from the preferred vector mode |
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1024 is tried. */ |
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1025 |
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1026 unsigned int |
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1027 default_autovectorize_vector_sizes (void) |
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1028 { |
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1029 return 0; |
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1030 } |
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1031 |
|
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1032 /* Determine whether or not a pointer mode is valid. Assume defaults |
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1033 of ptr_mode or Pmode - can be overridden. */ |
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1034 bool |
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1035 default_valid_pointer_mode (enum machine_mode mode) |
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1036 { |
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1037 return (mode == ptr_mode || mode == Pmode); |
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1038 } |
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1039 |
|
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1040 /* Determine whether the memory reference specified by REF may alias |
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1041 the C libraries errno location. */ |
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1042 bool |
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1043 default_ref_may_alias_errno (ao_ref *ref) |
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1044 { |
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1045 tree base = ao_ref_base (ref); |
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1046 /* The default implementation assumes the errno location is |
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1047 a declaration of type int or is always accessed via a |
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1048 pointer to int. We assume that accesses to errno are |
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1049 not deliberately obfuscated (even in conforming ways). */ |
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1050 if (TYPE_UNSIGNED (TREE_TYPE (base)) |
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1051 || TYPE_MODE (TREE_TYPE (base)) != TYPE_MODE (integer_type_node)) |
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|
1052 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1053 /* The default implementation assumes an errno location |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1054 declaration is never defined in the current compilation unit. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1055 if (DECL_P (base) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1056 && !TREE_STATIC (base)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1057 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1058 else if (TREE_CODE (base) == MEM_REF |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1059 && TREE_CODE (TREE_OPERAND (base, 0)) == SSA_NAME) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1060 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1061 struct ptr_info_def *pi = SSA_NAME_PTR_INFO (TREE_OPERAND (base, 0)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1062 return !pi || pi->pt.anything || pi->pt.nonlocal; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1063 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1064 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1065 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1066 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1067 /* Return the mode for a pointer to a given ADDRSPACE, defaulting to ptr_mode |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1068 for the generic address space only. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1069 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1070 enum machine_mode |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1071 default_addr_space_pointer_mode (addr_space_t addrspace ATTRIBUTE_UNUSED) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1072 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1073 gcc_assert (ADDR_SPACE_GENERIC_P (addrspace)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1074 return ptr_mode; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1075 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1076 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1077 /* Return the mode for an address in a given ADDRSPACE, defaulting to Pmode |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1078 for the generic address space only. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1079 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1080 enum machine_mode |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1081 default_addr_space_address_mode (addr_space_t addrspace ATTRIBUTE_UNUSED) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1082 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1083 gcc_assert (ADDR_SPACE_GENERIC_P (addrspace)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1084 return Pmode; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1085 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1086 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1087 /* Named address space version of valid_pointer_mode. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1088 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1089 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1090 default_addr_space_valid_pointer_mode (enum machine_mode mode, addr_space_t as) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1091 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1092 if (!ADDR_SPACE_GENERIC_P (as)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1093 return (mode == targetm.addr_space.pointer_mode (as) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1094 || mode == targetm.addr_space.address_mode (as)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1095 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1096 return targetm.valid_pointer_mode (mode); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1097 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1098 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1099 /* Some places still assume that all pointer or address modes are the |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1100 standard Pmode and ptr_mode. These optimizations become invalid if |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1101 the target actually supports multiple different modes. For now, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1102 we disable such optimizations on such targets, using this function. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1103 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1104 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1105 target_default_pointer_address_modes_p (void) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1106 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1107 if (targetm.addr_space.address_mode != default_addr_space_address_mode) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1108 return false; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1109 if (targetm.addr_space.pointer_mode != default_addr_space_pointer_mode) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1110 return false; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1111 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1112 return true; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1113 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1114 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1115 /* Named address space version of legitimate_address_p. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1116 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1117 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1118 default_addr_space_legitimate_address_p (enum machine_mode mode, rtx mem, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1119 bool strict, addr_space_t as) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1120 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1121 if (!ADDR_SPACE_GENERIC_P (as)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1122 gcc_unreachable (); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1123 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1124 return targetm.legitimate_address_p (mode, mem, strict); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1125 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1126 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1127 /* Named address space version of LEGITIMIZE_ADDRESS. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1128 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1129 rtx |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1130 default_addr_space_legitimize_address (rtx x, rtx oldx, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1131 enum machine_mode mode, addr_space_t as) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1132 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1133 if (!ADDR_SPACE_GENERIC_P (as)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1134 return x; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1135 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1136 return targetm.legitimize_address (x, oldx, mode); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1137 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1138 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1139 /* The default hook for determining if one named address space is a subset of |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1140 another and to return which address space to use as the common address |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1141 space. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1142 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1143 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1144 default_addr_space_subset_p (addr_space_t subset, addr_space_t superset) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1145 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1146 return (subset == superset); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1147 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1148 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1149 /* The default hook for TARGET_ADDR_SPACE_CONVERT. This hook should never be |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1150 called for targets with only a generic address space. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1151 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1152 rtx |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
1153 default_addr_space_convert (rtx op ATTRIBUTE_UNUSED, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
1154 tree from_type ATTRIBUTE_UNUSED, |
|
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update it from 4.4.3 to 4.5.0
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diff
changeset
|
1155 tree to_type ATTRIBUTE_UNUSED) |
|
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update it from 4.4.3 to 4.5.0
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diff
changeset
|
1156 { |
|
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parents:
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diff
changeset
|
1157 gcc_unreachable (); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
1158 } |
|
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diff
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|
1159 |
| 0 | 1160 bool |
| 1161 default_hard_regno_scratch_ok (unsigned int regno ATTRIBUTE_UNUSED) | |
| 1162 { | |
| 1163 return true; | |
| 1164 } | |
| 1165 | |
|
63
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diff
changeset
|
1166 /* The default implementation of TARGET_MODE_DEPENDENT_ADDRESS_P. */ |
|
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diff
changeset
|
1167 |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1168 bool |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1169 default_mode_dependent_address_p (const_rtx addr ATTRIBUTE_UNUSED) |
|
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diff
changeset
|
1170 { |
|
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diff
changeset
|
1171 #ifdef GO_IF_MODE_DEPENDENT_ADDRESS |
|
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diff
changeset
|
1172 |
|
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diff
changeset
|
1173 GO_IF_MODE_DEPENDENT_ADDRESS (CONST_CAST_RTX (addr), win); |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
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|
1174 return false; |
|
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diff
changeset
|
1175 /* Label `win' might (not) be used via GO_IF_MODE_DEPENDENT_ADDRESS. */ |
|
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diff
changeset
|
1176 win: ATTRIBUTE_UNUSED_LABEL |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1177 return true; |
|
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diff
changeset
|
1178 |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1179 #else |
|
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diff
changeset
|
1180 |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1181 return false; |
|
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diff
changeset
|
1182 |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1183 #endif |
|
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diff
changeset
|
1184 } |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
1185 |
| 0 | 1186 bool |
| 1187 default_target_option_valid_attribute_p (tree ARG_UNUSED (fndecl), | |
| 1188 tree ARG_UNUSED (name), | |
| 1189 tree ARG_UNUSED (args), | |
| 1190 int ARG_UNUSED (flags)) | |
| 1191 { | |
| 1192 warning (OPT_Wattributes, | |
| 1193 "target attribute is not supported on this machine"); | |
| 1194 | |
| 1195 return false; | |
| 1196 } | |
| 1197 | |
| 1198 bool | |
| 1199 default_target_option_pragma_parse (tree ARG_UNUSED (args), | |
| 1200 tree ARG_UNUSED (pop_target)) | |
| 1201 { | |
| 1202 warning (OPT_Wpragmas, | |
| 1203 "#pragma GCC target is not supported for this machine"); | |
| 1204 | |
| 1205 return false; | |
| 1206 } | |
| 1207 | |
| 1208 bool | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
1209 default_target_can_inline_p (tree caller, tree callee) |
| 0 | 1210 { |
| 1211 bool ret = false; | |
| 1212 tree callee_opts = DECL_FUNCTION_SPECIFIC_TARGET (callee); | |
| 1213 tree caller_opts = DECL_FUNCTION_SPECIFIC_TARGET (caller); | |
| 1214 | |
| 1215 /* If callee has no option attributes, then it is ok to inline */ | |
| 1216 if (!callee_opts) | |
| 1217 ret = true; | |
| 1218 | |
| 1219 /* If caller has no option attributes, but callee does then it is not ok to | |
| 1220 inline */ | |
| 1221 else if (!caller_opts) | |
| 1222 ret = false; | |
| 1223 | |
| 1224 /* If both caller and callee have attributes, assume that if the pointer is | |
| 1225 different, the the two functions have different target options since | |
| 1226 build_target_option_node uses a hash table for the options. */ | |
| 1227 else | |
| 1228 ret = (callee_opts == caller_opts); | |
| 1229 | |
| 1230 return ret; | |
| 1231 } | |
| 1232 | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1233 #ifndef HAVE_casesi |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1234 # define HAVE_casesi 0 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1235 #endif |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1236 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1237 /* If the machine does not have a case insn that compares the bounds, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1238 this means extra overhead for dispatch tables, which raises the |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1239 threshold for using them. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1240 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1241 unsigned int default_case_values_threshold (void) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
1242 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
1243 return (HAVE_casesi ? 4 : 5); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
1244 } |
|
77e2b8dfacca
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diff
changeset
|
1245 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
1246 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1247 default_have_conditional_execution (void) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1248 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1249 #ifdef HAVE_conditional_execution |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1250 return HAVE_conditional_execution; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1251 #else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
1252 return false; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
1253 #endif |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1254 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1255 |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
1256 /* Compute cost of moving registers to/from memory. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1257 |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1258 int |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1259 default_memory_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED, |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1260 reg_class_t rclass ATTRIBUTE_UNUSED, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1261 bool in ATTRIBUTE_UNUSED) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1262 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1263 #ifndef MEMORY_MOVE_COST |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1264 return (4 + memory_move_secondary_cost (mode, (enum reg_class) rclass, in)); |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1265 #else |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1266 return MEMORY_MOVE_COST (mode, (enum reg_class) rclass, in); |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1267 #endif |
|
f6334be47118
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diff
changeset
|
1268 } |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1269 |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1270 /* Compute cost of moving data from a register of class FROM to one of |
|
f6334be47118
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diff
changeset
|
1271 TO, using MODE. */ |
|
f6334be47118
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changeset
|
1272 |
|
f6334be47118
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diff
changeset
|
1273 int |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
1274 default_register_move_cost (enum machine_mode mode ATTRIBUTE_UNUSED, |
|
f6334be47118
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changeset
|
1275 reg_class_t from ATTRIBUTE_UNUSED, |
|
f6334be47118
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changeset
|
1276 reg_class_t to ATTRIBUTE_UNUSED) |
|
f6334be47118
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diff
changeset
|
1277 { |
|
f6334be47118
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|
1278 #ifndef REGISTER_MOVE_COST |
|
f6334be47118
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|
1279 return 2; |
|
f6334be47118
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changeset
|
1280 #else |
|
f6334be47118
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changeset
|
1281 return REGISTER_MOVE_COST (mode, (enum reg_class) from, (enum reg_class) to); |
|
f6334be47118
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changeset
|
1282 #endif |
|
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|
1283 } |
|
f6334be47118
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changeset
|
1284 |
|
f6334be47118
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changeset
|
1285 bool |
|
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changeset
|
1286 default_profile_before_prologue (void) |
|
f6334be47118
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changeset
|
1287 { |
|
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changeset
|
1288 #ifdef PROFILE_BEFORE_PROLOGUE |
|
f6334be47118
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changeset
|
1289 return true; |
|
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changeset
|
1290 #else |
|
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changeset
|
1291 return false; |
|
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changeset
|
1292 #endif |
|
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changeset
|
1293 } |
|
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changeset
|
1294 |
|
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1295 /* The default implementation of TARGET_PREFERRED_RELOAD_CLASS. */ |
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1296 |
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1297 reg_class_t |
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1298 default_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, |
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1299 reg_class_t rclass) |
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1300 { |
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1301 #ifdef PREFERRED_RELOAD_CLASS |
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1302 return (reg_class_t) PREFERRED_RELOAD_CLASS (x, (enum reg_class) rclass); |
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1303 #else |
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1304 return rclass; |
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1305 #endif |
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1306 } |
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1307 |
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1308 /* The default implementation of TARGET_OUTPUT_PREFERRED_RELOAD_CLASS. */ |
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1309 |
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1310 reg_class_t |
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1311 default_preferred_output_reload_class (rtx x ATTRIBUTE_UNUSED, |
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1312 reg_class_t rclass) |
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1313 { |
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1314 #ifdef PREFERRED_OUTPUT_RELOAD_CLASS |
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1315 return PREFERRED_OUTPUT_RELOAD_CLASS (x, (enum reg_class) rclass); |
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1316 #else |
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1317 return rclass; |
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1318 #endif |
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1319 } |
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1320 |
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1321 /* The default implementation of TARGET_PREFERRED_RENAME_CLASS. */ |
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1322 reg_class_t |
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1323 default_preferred_rename_class (reg_class_t rclass ATTRIBUTE_UNUSED) |
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1324 { |
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1325 return NO_REGS; |
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1326 } |
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1327 |
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1328 /* The default implementation of TARGET_CLASS_LIKELY_SPILLED_P. */ |
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1329 |
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1330 bool |
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1331 default_class_likely_spilled_p (reg_class_t rclass) |
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1332 { |
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1333 return (reg_class_size[(int) rclass] == 1); |
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1334 } |
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1335 |
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1336 /* Determine the debugging unwind mechanism for the target. */ |
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1337 |
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1338 enum unwind_info_type |
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1339 default_debug_unwind_info (void) |
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1340 { |
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1341 /* If the target wants to force the use of dwarf2 unwind info, let it. */ |
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1342 /* ??? Change all users to the hook, then poison this. */ |
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1343 #ifdef DWARF2_FRAME_INFO |
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1344 if (DWARF2_FRAME_INFO) |
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1345 return UI_DWARF2; |
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1346 #endif |
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1347 |
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1348 /* Otherwise, only turn it on if dwarf2 debugging is enabled. */ |
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1349 #ifdef DWARF2_DEBUGGING_INFO |
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1350 if (write_symbols == DWARF2_DEBUG || write_symbols == VMS_AND_DWARF2_DEBUG) |
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1351 return UI_DWARF2; |
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1352 #endif |
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1353 |
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1354 return UI_NONE; |
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1355 } |
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1356 |
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1357 /* Determine the exception handling mechanism for the target. */ |
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1358 |
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1359 enum unwind_info_type |
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1360 default_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) |
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1361 { |
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1362 /* Obey the configure switch to turn on sjlj exceptions. */ |
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1363 #ifdef CONFIG_SJLJ_EXCEPTIONS |
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1364 if (CONFIG_SJLJ_EXCEPTIONS) |
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1365 return UI_SJLJ; |
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1366 #endif |
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1367 |
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1368 /* ??? Change all users to the hook, then poison this. */ |
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1369 #ifdef DWARF2_UNWIND_INFO |
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1370 if (DWARF2_UNWIND_INFO) |
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1371 return UI_DWARF2; |
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1372 #endif |
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1373 |
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1374 return UI_SJLJ; |
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1375 } |
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1376 |
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1377 /* To be used by targets that force dwarf2 unwind enabled. */ |
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1378 |
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1379 enum unwind_info_type |
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1380 dwarf2_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) |
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1381 { |
|
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1382 /* Obey the configure switch to turn on sjlj exceptions. */ |
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1383 #ifdef CONFIG_SJLJ_EXCEPTIONS |
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1384 if (CONFIG_SJLJ_EXCEPTIONS) |
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|
1385 return UI_SJLJ; |
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1386 #endif |
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1387 |
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1388 return UI_DWARF2; |
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1389 } |
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1390 |
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1391 /* To be used by targets that force sjlj unwind enabled. */ |
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1392 |
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1393 enum unwind_info_type |
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1394 sjlj_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) |
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1395 { |
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1396 return UI_SJLJ; |
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1397 } |
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1398 |
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1399 /* To be used by targets where reg_raw_mode doesn't return the right |
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1400 mode for registers used in apply_builtin_return and apply_builtin_arg. */ |
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1401 |
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1402 enum machine_mode |
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1403 default_get_reg_raw_mode(int regno) |
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1404 { |
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1405 return reg_raw_mode[regno]; |
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1406 } |
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1407 |
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1408 /* Return true if the state of option OPTION should be stored in PCH files |
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1409 and checked by default_pch_valid_p. Store the option's current state |
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1410 in STATE if so. */ |
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1411 |
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1412 static inline bool |
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1413 option_affects_pch_p (int option, struct cl_option_state *state) |
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1414 { |
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1415 if ((cl_options[option].flags & CL_TARGET) == 0) |
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1416 return false; |
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1417 if (option_flag_var (option, &global_options) == &target_flags) |
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1418 if (targetm.check_pch_target_flags) |
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1419 return false; |
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1420 return get_option_state (&global_options, option, state); |
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1421 } |
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1422 |
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1423 /* Default version of get_pch_validity. |
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1424 By default, every flag difference is fatal; that will be mostly right for |
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1425 most targets, but completely right for very few. */ |
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1426 |
|
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|
1427 void * |
|
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1428 default_get_pch_validity (size_t *sz) |
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1429 { |
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1430 struct cl_option_state state; |
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|
1431 size_t i; |
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1432 char *result, *r; |
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|
1433 |
|
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1434 *sz = 2; |
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1435 if (targetm.check_pch_target_flags) |
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1436 *sz += sizeof (target_flags); |
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|
1437 for (i = 0; i < cl_options_count; i++) |
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1438 if (option_affects_pch_p (i, &state)) |
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1439 *sz += state.size; |
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|
1440 |
|
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1441 result = r = XNEWVEC (char, *sz); |
|
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|
1442 r[0] = flag_pic; |
|
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|
1443 r[1] = flag_pie; |
|
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|
1444 r += 2; |
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|
1445 if (targetm.check_pch_target_flags) |
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|
1446 { |
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|
1447 memcpy (r, &target_flags, sizeof (target_flags)); |
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|
1448 r += sizeof (target_flags); |
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|
1449 } |
|
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|
1450 |
|
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|
1451 for (i = 0; i < cl_options_count; i++) |
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1452 if (option_affects_pch_p (i, &state)) |
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|
1453 { |
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|
1454 memcpy (r, state.data, state.size); |
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|
1455 r += state.size; |
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1456 } |
|
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|
1457 |
|
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|
1458 return result; |
|
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1459 } |
|
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|
1460 |
|
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1461 /* Return a message which says that a PCH file was created with a different |
|
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|
1462 setting of OPTION. */ |
|
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|
1463 |
|
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|
1464 static const char * |
|
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1465 pch_option_mismatch (const char *option) |
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|
1466 { |
|
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1467 char *r; |
|
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|
1468 |
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|
1469 asprintf (&r, _("created and used with differing settings of '%s'"), option); |
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|
1470 if (r == NULL) |
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1471 return _("out of memory"); |
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|
1472 return r; |
|
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1473 } |
|
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|
1474 |
|
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|
1475 /* Default version of pch_valid_p. */ |
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|
1476 |
|
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1477 const char * |
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1478 default_pch_valid_p (const void *data_p, size_t len) |
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1479 { |
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1480 struct cl_option_state state; |
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1481 const char *data = (const char *)data_p; |
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1482 size_t i; |
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1483 |
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1484 /* -fpic and -fpie also usually make a PCH invalid. */ |
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1485 if (data[0] != flag_pic) |
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1486 return _("created and used with different settings of -fpic"); |
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1487 if (data[1] != flag_pie) |
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1488 return _("created and used with different settings of -fpie"); |
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1489 data += 2; |
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1490 |
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1491 /* Check target_flags. */ |
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1492 if (targetm.check_pch_target_flags) |
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1493 { |
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1494 int tf; |
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1495 const char *r; |
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1496 |
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1497 memcpy (&tf, data, sizeof (target_flags)); |
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1498 data += sizeof (target_flags); |
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1499 len -= sizeof (target_flags); |
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1500 r = targetm.check_pch_target_flags (tf); |
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1501 if (r != NULL) |
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1502 return r; |
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1503 } |
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1504 |
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1505 for (i = 0; i < cl_options_count; i++) |
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1506 if (option_affects_pch_p (i, &state)) |
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1507 { |
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1508 if (memcmp (data, state.data, state.size) != 0) |
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1509 return pch_option_mismatch (cl_options[i].opt_text); |
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1510 data += state.size; |
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1511 len -= state.size; |
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1512 } |
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1513 |
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1514 return NULL; |
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1515 } |
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1516 |
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1517 const struct default_options empty_optimization_table[] = |
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1518 { |
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1519 { OPT_LEVELS_NONE, 0, NULL, 0 } |
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1520 }; |
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1521 |
| 0 | 1522 #include "gt-targhooks.h" |