| File: | build/gcc/config/i386/i386.c |
| Warning: | line 10183, column 19 Although the value stored to 'base_reg' is used in the enclosing expression, the value is never actually read from 'base_reg' |
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| 1 | /* Subroutines used for code generation on IA-32. |
| 2 | Copyright (C) 1988-2021 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GCC. |
| 5 | |
| 6 | GCC is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GCC is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GCC; see the file COPYING3. If not see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #define IN_TARGET_CODE1 1 |
| 21 | |
| 22 | #include "config.h" |
| 23 | #include "system.h" |
| 24 | #include "coretypes.h" |
| 25 | #include "backend.h" |
| 26 | #include "rtl.h" |
| 27 | #include "tree.h" |
| 28 | #include "memmodel.h" |
| 29 | #include "gimple.h" |
| 30 | #include "cfghooks.h" |
| 31 | #include "cfgloop.h" |
| 32 | #include "df.h" |
| 33 | #include "tm_p.h" |
| 34 | #include "stringpool.h" |
| 35 | #include "expmed.h" |
| 36 | #include "optabs.h" |
| 37 | #include "regs.h" |
| 38 | #include "emit-rtl.h" |
| 39 | #include "recog.h" |
| 40 | #include "cgraph.h" |
| 41 | #include "diagnostic.h" |
| 42 | #include "cfgbuild.h" |
| 43 | #include "alias.h" |
| 44 | #include "fold-const.h" |
| 45 | #include "attribs.h" |
| 46 | #include "calls.h" |
| 47 | #include "stor-layout.h" |
| 48 | #include "varasm.h" |
| 49 | #include "output.h" |
| 50 | #include "insn-attr.h" |
| 51 | #include "flags.h" |
| 52 | #include "except.h" |
| 53 | #include "explow.h" |
| 54 | #include "expr.h" |
| 55 | #include "cfgrtl.h" |
| 56 | #include "common/common-target.h" |
| 57 | #include "langhooks.h" |
| 58 | #include "reload.h" |
| 59 | #include "gimplify.h" |
| 60 | #include "dwarf2.h" |
| 61 | #include "tm-constrs.h" |
| 62 | #include "cselib.h" |
| 63 | #include "sched-int.h" |
| 64 | #include "opts.h" |
| 65 | #include "tree-pass.h" |
| 66 | #include "context.h" |
| 67 | #include "pass_manager.h" |
| 68 | #include "target-globals.h" |
| 69 | #include "gimple-iterator.h" |
| 70 | #include "tree-vectorizer.h" |
| 71 | #include "shrink-wrap.h" |
| 72 | #include "builtins.h" |
| 73 | #include "rtl-iter.h" |
| 74 | #include "tree-iterator.h" |
| 75 | #include "dbgcnt.h" |
| 76 | #include "case-cfn-macros.h" |
| 77 | #include "dojump.h" |
| 78 | #include "fold-const-call.h" |
| 79 | #include "tree-vrp.h" |
| 80 | #include "tree-ssanames.h" |
| 81 | #include "selftest.h" |
| 82 | #include "selftest-rtl.h" |
| 83 | #include "print-rtl.h" |
| 84 | #include "intl.h" |
| 85 | #include "ifcvt.h" |
| 86 | #include "symbol-summary.h" |
| 87 | #include "ipa-prop.h" |
| 88 | #include "ipa-fnsummary.h" |
| 89 | #include "wide-int-bitmask.h" |
| 90 | #include "tree-vector-builder.h" |
| 91 | #include "debug.h" |
| 92 | #include "dwarf2out.h" |
| 93 | #include "i386-options.h" |
| 94 | #include "i386-builtins.h" |
| 95 | #include "i386-expand.h" |
| 96 | #include "i386-features.h" |
| 97 | #include "function-abi.h" |
| 98 | |
| 99 | /* This file should be included last. */ |
| 100 | #include "target-def.h" |
| 101 | |
| 102 | static rtx legitimize_dllimport_symbol (rtx, bool); |
| 103 | static rtx legitimize_pe_coff_extern_decl (rtx, bool); |
| 104 | static void ix86_print_operand_address_as (FILE *, rtx, addr_space_t, bool); |
| 105 | static void ix86_emit_restore_reg_using_pop (rtx); |
| 106 | |
| 107 | |
| 108 | #ifndef CHECK_STACK_LIMIT(-1) |
| 109 | #define CHECK_STACK_LIMIT(-1) (-1) |
| 110 | #endif |
| 111 | |
| 112 | /* Return index of given mode in mult and division cost tables. */ |
| 113 | #define MODE_INDEX(mode)((mode) == (scalar_int_mode ((scalar_int_mode::from_int) E_QImode )) ? 0 : (mode) == (scalar_int_mode ((scalar_int_mode::from_int ) E_HImode)) ? 1 : (mode) == (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode)) ? 2 : (mode) == (scalar_int_mode ((scalar_int_mode ::from_int) E_DImode)) ? 3 : 4) \ |
| 114 | ((mode) == QImode(scalar_int_mode ((scalar_int_mode::from_int) E_QImode)) ? 0 \ |
| 115 | : (mode) == HImode(scalar_int_mode ((scalar_int_mode::from_int) E_HImode)) ? 1 \ |
| 116 | : (mode) == SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode)) ? 2 \ |
| 117 | : (mode) == DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)) ? 3 \ |
| 118 | : 4) |
| 119 | |
| 120 | |
| 121 | /* Set by -mtune. */ |
| 122 | const struct processor_costs *ix86_tune_cost = NULL__null; |
| 123 | |
| 124 | /* Set by -mtune or -Os. */ |
| 125 | const struct processor_costs *ix86_cost = NULL__null; |
| 126 | |
| 127 | /* In case the average insn count for single function invocation is |
| 128 | lower than this constant, emit fast (but longer) prologue and |
| 129 | epilogue code. */ |
| 130 | #define FAST_PROLOGUE_INSN_COUNT20 20 |
| 131 | |
| 132 | /* Names for 8 (low), 8 (high), and 16-bit registers, respectively. */ |
| 133 | static const char *const qi_reg_name[] = QI_REGISTER_NAMES{"al", "dl", "cl", "bl", "sil", "dil", "bpl", "spl"}; |
| 134 | static const char *const qi_high_reg_name[] = QI_HIGH_REGISTER_NAMES{"ah", "dh", "ch", "bh"}; |
| 135 | static const char *const hi_reg_name[] = HI_REGISTER_NAMES{"ax","dx","cx","bx","si","di","bp","sp", "st","st(1)","st(2)" ,"st(3)","st(4)","st(5)","st(6)","st(7)", "argp", "flags", "fpsr" , "frame", "xmm0","xmm1","xmm2","xmm3","xmm4","xmm5","xmm6","xmm7" , "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7", "r8" , "r9", "r10", "r11", "r12", "r13", "r14", "r15", "xmm8", "xmm9" , "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15", "xmm16" , "xmm17", "xmm18", "xmm19", "xmm20", "xmm21", "xmm22", "xmm23" , "xmm24", "xmm25", "xmm26", "xmm27", "xmm28", "xmm29", "xmm30" , "xmm31", "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" }; |
| 136 | |
| 137 | /* Array of the smallest class containing reg number REGNO, indexed by |
| 138 | REGNO. Used by REGNO_REG_CLASS in i386.h. */ |
| 139 | |
| 140 | enum reg_class const regclass_map[FIRST_PSEUDO_REGISTER76] = |
| 141 | { |
| 142 | /* ax, dx, cx, bx */ |
| 143 | AREG, DREG, CREG, BREG, |
| 144 | /* si, di, bp, sp */ |
| 145 | SIREG, DIREG, NON_Q_REGS, NON_Q_REGS, |
| 146 | /* FP registers */ |
| 147 | FP_TOP_REG, FP_SECOND_REG, FLOAT_REGS, FLOAT_REGS, |
| 148 | FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, |
| 149 | /* arg pointer, flags, fpsr, frame */ |
| 150 | NON_Q_REGS, NO_REGS, NO_REGS, NON_Q_REGS, |
| 151 | /* SSE registers */ |
| 152 | SSE_FIRST_REG, SSE_REGS, SSE_REGS, SSE_REGS, |
| 153 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, |
| 154 | /* MMX registers */ |
| 155 | MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, |
| 156 | MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, |
| 157 | /* REX registers */ |
| 158 | GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, |
| 159 | GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, GENERAL_REGS, |
| 160 | /* SSE REX registers */ |
| 161 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, |
| 162 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, |
| 163 | /* AVX-512 SSE registers */ |
| 164 | ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, |
| 165 | ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, |
| 166 | ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, |
| 167 | ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, ALL_SSE_REGS, |
| 168 | /* Mask registers. */ |
| 169 | ALL_MASK_REGS, MASK_REGS, MASK_REGS, MASK_REGS, |
| 170 | MASK_REGS, MASK_REGS, MASK_REGS, MASK_REGS |
| 171 | }; |
| 172 | |
| 173 | /* The "default" register map used in 32bit mode. */ |
| 174 | |
| 175 | int const dbx_register_map[FIRST_PSEUDO_REGISTER76] = |
| 176 | { |
| 177 | /* general regs */ |
| 178 | 0, 2, 1, 3, 6, 7, 4, 5, |
| 179 | /* fp regs */ |
| 180 | 12, 13, 14, 15, 16, 17, 18, 19, |
| 181 | /* arg, flags, fpsr, frame */ |
| 182 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), |
| 183 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), |
| 184 | /* SSE */ |
| 185 | 21, 22, 23, 24, 25, 26, 27, 28, |
| 186 | /* MMX */ |
| 187 | 29, 30, 31, 32, 33, 34, 35, 36, |
| 188 | /* extended integer registers */ |
| 189 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 190 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 191 | /* extended sse registers */ |
| 192 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 193 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 194 | /* AVX-512 registers 16-23 */ |
| 195 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 196 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 197 | /* AVX-512 registers 24-31 */ |
| 198 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 199 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 200 | /* Mask registers */ |
| 201 | 93, 94, 95, 96, 97, 98, 99, 100 |
| 202 | }; |
| 203 | |
| 204 | /* The "default" register map used in 64bit mode. */ |
| 205 | |
| 206 | int const dbx64_register_map[FIRST_PSEUDO_REGISTER76] = |
| 207 | { |
| 208 | /* general regs */ |
| 209 | 0, 1, 2, 3, 4, 5, 6, 7, |
| 210 | /* fp regs */ |
| 211 | 33, 34, 35, 36, 37, 38, 39, 40, |
| 212 | /* arg, flags, fpsr, frame */ |
| 213 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), |
| 214 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), |
| 215 | /* SSE */ |
| 216 | 17, 18, 19, 20, 21, 22, 23, 24, |
| 217 | /* MMX */ |
| 218 | 41, 42, 43, 44, 45, 46, 47, 48, |
| 219 | /* extended integer registers */ |
| 220 | 8, 9, 10, 11, 12, 13, 14, 15, |
| 221 | /* extended SSE registers */ |
| 222 | 25, 26, 27, 28, 29, 30, 31, 32, |
| 223 | /* AVX-512 registers 16-23 */ |
| 224 | 67, 68, 69, 70, 71, 72, 73, 74, |
| 225 | /* AVX-512 registers 24-31 */ |
| 226 | 75, 76, 77, 78, 79, 80, 81, 82, |
| 227 | /* Mask registers */ |
| 228 | 118, 119, 120, 121, 122, 123, 124, 125 |
| 229 | }; |
| 230 | |
| 231 | /* Define the register numbers to be used in Dwarf debugging information. |
| 232 | The SVR4 reference port C compiler uses the following register numbers |
| 233 | in its Dwarf output code: |
| 234 | 0 for %eax (gcc regno = 0) |
| 235 | 1 for %ecx (gcc regno = 2) |
| 236 | 2 for %edx (gcc regno = 1) |
| 237 | 3 for %ebx (gcc regno = 3) |
| 238 | 4 for %esp (gcc regno = 7) |
| 239 | 5 for %ebp (gcc regno = 6) |
| 240 | 6 for %esi (gcc regno = 4) |
| 241 | 7 for %edi (gcc regno = 5) |
| 242 | The following three DWARF register numbers are never generated by |
| 243 | the SVR4 C compiler or by the GNU compilers, but SDB on x86/svr4 |
| 244 | believed these numbers have these meanings. |
| 245 | 8 for %eip (no gcc equivalent) |
| 246 | 9 for %eflags (gcc regno = 17) |
| 247 | 10 for %trapno (no gcc equivalent) |
| 248 | It is not at all clear how we should number the FP stack registers |
| 249 | for the x86 architecture. If the version of SDB on x86/svr4 were |
| 250 | a bit less brain dead with respect to floating-point then we would |
| 251 | have a precedent to follow with respect to DWARF register numbers |
| 252 | for x86 FP registers, but the SDB on x86/svr4 was so completely |
| 253 | broken with respect to FP registers that it is hardly worth thinking |
| 254 | of it as something to strive for compatibility with. |
| 255 | The version of x86/svr4 SDB I had does (partially) |
| 256 | seem to believe that DWARF register number 11 is associated with |
| 257 | the x86 register %st(0), but that's about all. Higher DWARF |
| 258 | register numbers don't seem to be associated with anything in |
| 259 | particular, and even for DWARF regno 11, SDB only seemed to under- |
| 260 | stand that it should say that a variable lives in %st(0) (when |
| 261 | asked via an `=' command) if we said it was in DWARF regno 11, |
| 262 | but SDB still printed garbage when asked for the value of the |
| 263 | variable in question (via a `/' command). |
| 264 | (Also note that the labels SDB printed for various FP stack regs |
| 265 | when doing an `x' command were all wrong.) |
| 266 | Note that these problems generally don't affect the native SVR4 |
| 267 | C compiler because it doesn't allow the use of -O with -g and |
| 268 | because when it is *not* optimizing, it allocates a memory |
| 269 | location for each floating-point variable, and the memory |
| 270 | location is what gets described in the DWARF AT_location |
| 271 | attribute for the variable in question. |
| 272 | Regardless of the severe mental illness of the x86/svr4 SDB, we |
| 273 | do something sensible here and we use the following DWARF |
| 274 | register numbers. Note that these are all stack-top-relative |
| 275 | numbers. |
| 276 | 11 for %st(0) (gcc regno = 8) |
| 277 | 12 for %st(1) (gcc regno = 9) |
| 278 | 13 for %st(2) (gcc regno = 10) |
| 279 | 14 for %st(3) (gcc regno = 11) |
| 280 | 15 for %st(4) (gcc regno = 12) |
| 281 | 16 for %st(5) (gcc regno = 13) |
| 282 | 17 for %st(6) (gcc regno = 14) |
| 283 | 18 for %st(7) (gcc regno = 15) |
| 284 | */ |
| 285 | int const svr4_dbx_register_map[FIRST_PSEUDO_REGISTER76] = |
| 286 | { |
| 287 | /* general regs */ |
| 288 | 0, 2, 1, 3, 6, 7, 5, 4, |
| 289 | /* fp regs */ |
| 290 | 11, 12, 13, 14, 15, 16, 17, 18, |
| 291 | /* arg, flags, fpsr, frame */ |
| 292 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), 9, |
| 293 | IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), IGNORED_DWARF_REGNUM((~(unsigned int) 0) - 1), |
| 294 | /* SSE registers */ |
| 295 | 21, 22, 23, 24, 25, 26, 27, 28, |
| 296 | /* MMX registers */ |
| 297 | 29, 30, 31, 32, 33, 34, 35, 36, |
| 298 | /* extended integer registers */ |
| 299 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 300 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 301 | /* extended sse registers */ |
| 302 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 303 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 304 | /* AVX-512 registers 16-23 */ |
| 305 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 306 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 307 | /* AVX-512 registers 24-31 */ |
| 308 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 309 | INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), INVALID_REGNUM(~(unsigned int) 0), |
| 310 | /* Mask registers */ |
| 311 | 93, 94, 95, 96, 97, 98, 99, 100 |
| 312 | }; |
| 313 | |
| 314 | /* Define parameter passing and return registers. */ |
| 315 | |
| 316 | static int const x86_64_int_parameter_registers[6] = |
| 317 | { |
| 318 | DI_REG5, SI_REG4, DX_REG1, CX_REG2, R8_REG36, R9_REG37 |
| 319 | }; |
| 320 | |
| 321 | static int const x86_64_ms_abi_int_parameter_registers[4] = |
| 322 | { |
| 323 | CX_REG2, DX_REG1, R8_REG36, R9_REG37 |
| 324 | }; |
| 325 | |
| 326 | static int const x86_64_int_return_registers[4] = |
| 327 | { |
| 328 | AX_REG0, DX_REG1, DI_REG5, SI_REG4 |
| 329 | }; |
| 330 | |
| 331 | /* Define the structure for the machine field in struct function. */ |
| 332 | |
| 333 | struct GTY(()) stack_local_entry { |
| 334 | unsigned short mode; |
| 335 | unsigned short n; |
| 336 | rtx rtl; |
| 337 | struct stack_local_entry *next; |
| 338 | }; |
| 339 | |
| 340 | /* Which cpu are we scheduling for. */ |
| 341 | enum attr_cpu ix86_schedule; |
| 342 | |
| 343 | /* Which cpu are we optimizing for. */ |
| 344 | enum processor_type ix86_tune; |
| 345 | |
| 346 | /* Which instruction set architecture to use. */ |
| 347 | enum processor_type ix86_arch; |
| 348 | |
| 349 | /* True if processor has SSE prefetch instruction. */ |
| 350 | unsigned char ix86_prefetch_sse; |
| 351 | |
| 352 | /* Preferred alignment for stack boundary in bits. */ |
| 353 | unsigned int ix86_preferred_stack_boundary; |
| 354 | |
| 355 | /* Alignment for incoming stack boundary in bits specified at |
| 356 | command line. */ |
| 357 | unsigned int ix86_user_incoming_stack_boundary; |
| 358 | |
| 359 | /* Default alignment for incoming stack boundary in bits. */ |
| 360 | unsigned int ix86_default_incoming_stack_boundary; |
| 361 | |
| 362 | /* Alignment for incoming stack boundary in bits. */ |
| 363 | unsigned int ix86_incoming_stack_boundary; |
| 364 | |
| 365 | /* Calling abi specific va_list type nodes. */ |
| 366 | tree sysv_va_list_type_node; |
| 367 | tree ms_va_list_type_node; |
| 368 | |
| 369 | /* Prefix built by ASM_GENERATE_INTERNAL_LABEL. */ |
| 370 | char internal_label_prefix[16]; |
| 371 | int internal_label_prefix_len; |
| 372 | |
| 373 | /* Fence to use after loop using movnt. */ |
| 374 | tree x86_mfence; |
| 375 | |
| 376 | /* Register class used for passing given 64bit part of the argument. |
| 377 | These represent classes as documented by the PS ABI, with the exception |
| 378 | of SSESF, SSEDF classes, that are basically SSE class, just gcc will |
| 379 | use SF or DFmode move instead of DImode to avoid reformatting penalties. |
| 380 | |
| 381 | Similarly we play games with INTEGERSI_CLASS to use cheaper SImode moves |
| 382 | whenever possible (upper half does contain padding). */ |
| 383 | enum x86_64_reg_class |
| 384 | { |
| 385 | X86_64_NO_CLASS, |
| 386 | X86_64_INTEGER_CLASS, |
| 387 | X86_64_INTEGERSI_CLASS, |
| 388 | X86_64_SSE_CLASS, |
| 389 | X86_64_SSESF_CLASS, |
| 390 | X86_64_SSEDF_CLASS, |
| 391 | X86_64_SSEUP_CLASS, |
| 392 | X86_64_X87_CLASS, |
| 393 | X86_64_X87UP_CLASS, |
| 394 | X86_64_COMPLEX_X87_CLASS, |
| 395 | X86_64_MEMORY_CLASS |
| 396 | }; |
| 397 | |
| 398 | #define MAX_CLASSES8 8 |
| 399 | |
| 400 | /* Table of constants used by fldpi, fldln2, etc.... */ |
| 401 | static REAL_VALUE_TYPEstruct real_value ext_80387_constants_table [5]; |
| 402 | static bool ext_80387_constants_init; |
| 403 | |
| 404 | |
| 405 | static rtx ix86_function_value (const_tree, const_tree, bool); |
| 406 | static bool ix86_function_value_regno_p (const unsigned int); |
| 407 | static unsigned int ix86_function_arg_boundary (machine_mode, |
| 408 | const_tree); |
| 409 | static rtx ix86_static_chain (const_tree, bool); |
| 410 | static int ix86_function_regparm (const_tree, const_tree); |
| 411 | static void ix86_compute_frame_layout (void); |
| 412 | static tree ix86_canonical_va_list_type (tree); |
| 413 | static unsigned int split_stack_prologue_scratch_regno (void); |
| 414 | static bool i386_asm_output_addr_const_extra (FILE *, rtx); |
| 415 | |
| 416 | static bool ix86_can_inline_p (tree, tree); |
| 417 | static unsigned int ix86_minimum_incoming_stack_boundary (bool); |
| 418 | |
| 419 | |
| 420 | /* Whether -mtune= or -march= were specified */ |
| 421 | int ix86_tune_defaulted; |
| 422 | int ix86_arch_specified; |
| 423 | |
| 424 | /* Return true if a red-zone is in use. We can't use red-zone when |
| 425 | there are local indirect jumps, like "indirect_jump" or "tablejump", |
| 426 | which jumps to another place in the function, since "call" in the |
| 427 | indirect thunk pushes the return address onto stack, destroying |
| 428 | red-zone. |
| 429 | |
| 430 | TODO: If we can reserve the first 2 WORDs, for PUSH and, another |
| 431 | for CALL, in red-zone, we can allow local indirect jumps with |
| 432 | indirect thunk. */ |
| 433 | |
| 434 | bool |
| 435 | ix86_using_red_zone (void) |
| 436 | { |
| 437 | return (TARGET_RED_ZONE((global_options.x_target_flags & (1U << 20)) == 0) |
| 438 | && !TARGET_64BIT_MS_ABI(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI) |
| 439 | && (!cfun(cfun + 0)->machine->has_local_indirect_jump |
| 440 | || cfun(cfun + 0)->machine->indirect_branch_type == indirect_branch_keep)); |
| 441 | } |
| 442 | |
| 443 | /* Return true, if profiling code should be emitted before |
| 444 | prologue. Otherwise it returns false. |
| 445 | Note: For x86 with "hotfix" it is sorried. */ |
| 446 | static bool |
| 447 | ix86_profile_before_prologue (void) |
| 448 | { |
| 449 | return flag_fentryglobal_options.x_flag_fentry != 0; |
| 450 | } |
| 451 | |
| 452 | /* Update register usage after having seen the compiler flags. */ |
| 453 | |
| 454 | static void |
| 455 | ix86_conditional_register_usage (void) |
| 456 | { |
| 457 | int i, c_mask; |
| 458 | |
| 459 | /* If there are no caller-saved registers, preserve all registers. |
| 460 | except fixed_regs and registers used for function return value |
| 461 | since aggregate_value_p checks call_used_regs[regno] on return |
| 462 | value. */ |
| 463 | if (cfun(cfun + 0) && cfun(cfun + 0)->machine->no_caller_saved_registers) |
| 464 | for (i = 0; i < FIRST_PSEUDO_REGISTER76; i++) |
| 465 | if (!fixed_regs(this_target_hard_regs->x_fixed_regs)[i] && !ix86_function_value_regno_p (i)) |
| 466 | call_used_regs(this_target_hard_regs->x_call_used_regs)[i] = 0; |
| 467 | |
| 468 | /* For 32-bit targets, disable the REX registers. */ |
| 469 | if (! TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 470 | { |
| 471 | for (i = FIRST_REX_INT_REG36; i <= LAST_REX_INT_REG43; i++) |
| 472 | CLEAR_HARD_REG_BIT (accessible_reg_set(this_target_hard_regs->x_accessible_reg_set), i); |
| 473 | for (i = FIRST_REX_SSE_REG44; i <= LAST_REX_SSE_REG51; i++) |
| 474 | CLEAR_HARD_REG_BIT (accessible_reg_set(this_target_hard_regs->x_accessible_reg_set), i); |
| 475 | for (i = FIRST_EXT_REX_SSE_REG52; i <= LAST_EXT_REX_SSE_REG67; i++) |
| 476 | CLEAR_HARD_REG_BIT (accessible_reg_set(this_target_hard_regs->x_accessible_reg_set), i); |
| 477 | } |
| 478 | |
| 479 | /* See the definition of CALL_USED_REGISTERS in i386.h. */ |
| 480 | c_mask = CALL_USED_REGISTERS_MASK (TARGET_64BIT_MS_ABI)(((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI)) ? (1 << 3) : ((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? (1 << 2) : (1 << 1)); |
| 481 | |
| 482 | CLEAR_HARD_REG_SET (reg_class_contents(this_target_hard_regs->x_reg_class_contents)[(int)CLOBBERED_REGS]); |
| 483 | |
| 484 | for (i = 0; i < FIRST_PSEUDO_REGISTER76; i++) |
| 485 | { |
| 486 | /* Set/reset conditionally defined registers from |
| 487 | CALL_USED_REGISTERS initializer. */ |
| 488 | if (call_used_regs(this_target_hard_regs->x_call_used_regs)[i] > 1) |
| 489 | call_used_regs(this_target_hard_regs->x_call_used_regs)[i] = !!(call_used_regs(this_target_hard_regs->x_call_used_regs)[i] & c_mask); |
| 490 | |
| 491 | /* Calculate registers of CLOBBERED_REGS register set |
| 492 | as call used registers from GENERAL_REGS register set. */ |
| 493 | if (TEST_HARD_REG_BIT (reg_class_contents(this_target_hard_regs->x_reg_class_contents)[(int)GENERAL_REGS], i) |
| 494 | && call_used_regs(this_target_hard_regs->x_call_used_regs)[i]) |
| 495 | SET_HARD_REG_BIT (reg_class_contents(this_target_hard_regs->x_reg_class_contents)[(int)CLOBBERED_REGS], i); |
| 496 | } |
| 497 | |
| 498 | /* If MMX is disabled, disable the registers. */ |
| 499 | if (! TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0)) |
| 500 | accessible_reg_set(this_target_hard_regs->x_accessible_reg_set) &= ~reg_class_contents(this_target_hard_regs->x_reg_class_contents)[MMX_REGS]; |
| 501 | |
| 502 | /* If SSE is disabled, disable the registers. */ |
| 503 | if (! TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 504 | accessible_reg_set(this_target_hard_regs->x_accessible_reg_set) &= ~reg_class_contents(this_target_hard_regs->x_reg_class_contents)[ALL_SSE_REGS]; |
| 505 | |
| 506 | /* If the FPU is disabled, disable the registers. */ |
| 507 | if (! (TARGET_80387((global_options.x_target_flags & (1U << 1)) != 0) || TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0)))) |
| 508 | accessible_reg_set(this_target_hard_regs->x_accessible_reg_set) &= ~reg_class_contents(this_target_hard_regs->x_reg_class_contents)[FLOAT_REGS]; |
| 509 | |
| 510 | /* If AVX512F is disabled, disable the registers. */ |
| 511 | if (! TARGET_AVX512F((global_options.x_ix86_isa_flags & (1UL << 15)) != 0)) |
| 512 | { |
| 513 | for (i = FIRST_EXT_REX_SSE_REG52; i <= LAST_EXT_REX_SSE_REG67; i++) |
| 514 | CLEAR_HARD_REG_BIT (accessible_reg_set(this_target_hard_regs->x_accessible_reg_set), i); |
| 515 | |
| 516 | accessible_reg_set(this_target_hard_regs->x_accessible_reg_set) &= ~reg_class_contents(this_target_hard_regs->x_reg_class_contents)[ALL_MASK_REGS]; |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | /* Canonicalize a comparison from one we don't have to one we do have. */ |
| 521 | |
| 522 | static void |
| 523 | ix86_canonicalize_comparison (int *code, rtx *op0, rtx *op1, |
| 524 | bool op0_preserve_value) |
| 525 | { |
| 526 | /* The order of operands in x87 ficom compare is forced by combine in |
| 527 | simplify_comparison () function. Float operator is treated as RTX_OBJ |
| 528 | with a precedence over other operators and is always put in the first |
| 529 | place. Swap condition and operands to match ficom instruction. */ |
| 530 | if (!op0_preserve_value |
| 531 | && GET_CODE (*op0)((enum rtx_code) (*op0)->code) == FLOAT && MEM_P (XEXP (*op0, 0))(((enum rtx_code) ((((*op0)->u.fld[0]).rt_rtx))->code) == MEM) && REG_P (*op1)(((enum rtx_code) (*op1)->code) == REG)) |
| 532 | { |
| 533 | enum rtx_code scode = swap_condition ((enum rtx_code) *code); |
| 534 | |
| 535 | /* We are called only for compares that are split to SAHF instruction. |
| 536 | Ensure that we have setcc/jcc insn for the swapped condition. */ |
| 537 | if (ix86_fp_compare_code_to_integer (scode) != UNKNOWN) |
| 538 | { |
| 539 | std::swap (*op0, *op1); |
| 540 | *code = (int) scode; |
| 541 | } |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | |
| 546 | /* Hook to determine if one function can safely inline another. */ |
| 547 | |
| 548 | static bool |
| 549 | ix86_can_inline_p (tree caller, tree callee) |
| 550 | { |
| 551 | tree caller_tree = DECL_FUNCTION_SPECIFIC_TARGET (caller)((tree_check ((caller), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 551, __FUNCTION__, (FUNCTION_DECL)))->function_decl.function_specific_target ); |
| 552 | tree callee_tree = DECL_FUNCTION_SPECIFIC_TARGET (callee)((tree_check ((callee), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 552, __FUNCTION__, (FUNCTION_DECL)))->function_decl.function_specific_target ); |
| 553 | |
| 554 | /* Changes of those flags can be tolerated for always inlines. Lets hope |
| 555 | user knows what he is doing. */ |
| 556 | const unsigned HOST_WIDE_INTlong always_inline_safe_mask |
| 557 | = (MASK_USE_8BIT_IDIV(1U << 2) | MASK_ACCUMULATE_OUTGOING_ARGS(1U << 3) |
| 558 | | MASK_NO_ALIGN_STRINGOPS(1U << 5) | MASK_AVX256_SPLIT_UNALIGNED_LOAD(1U << 6) |
| 559 | | MASK_AVX256_SPLIT_UNALIGNED_STORE(1U << 7) | MASK_CLD(1U << 9) |
| 560 | | MASK_NO_FANCY_MATH_387(1U << 10) | MASK_IEEE_FP(1U << 13) | MASK_INLINE_ALL_STRINGOPS(1U << 14) |
| 561 | | MASK_INLINE_STRINGOPS_DYNAMICALLY(1U << 15) | MASK_RECIP(1U << 22) | MASK_STACK_PROBE(1U << 25) |
| 562 | | MASK_STV(1U << 26) | MASK_TLS_DIRECT_SEG_REFS(1U << 27) | MASK_VZEROUPPER(1U << 29) |
| 563 | | MASK_NO_PUSH_ARGS(1U << 19) | MASK_OMIT_LEAF_FRAME_POINTER(1U << 21)); |
| 564 | |
| 565 | |
| 566 | if (!callee_tree) |
| 567 | callee_tree = target_option_default_nodeglobal_trees[TI_TARGET_OPTION_DEFAULT]; |
| 568 | if (!caller_tree) |
| 569 | caller_tree = target_option_default_nodeglobal_trees[TI_TARGET_OPTION_DEFAULT]; |
| 570 | if (callee_tree == caller_tree) |
| 571 | return true; |
| 572 | |
| 573 | struct cl_target_option *caller_opts = TREE_TARGET_OPTION (caller_tree)((tree_check ((caller_tree), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 573, __FUNCTION__, (TARGET_OPTION_NODE)))->target_option .opts); |
| 574 | struct cl_target_option *callee_opts = TREE_TARGET_OPTION (callee_tree)((tree_check ((callee_tree), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 574, __FUNCTION__, (TARGET_OPTION_NODE)))->target_option .opts); |
| 575 | bool ret = false; |
| 576 | bool always_inline |
| 577 | = (DECL_DISREGARD_INLINE_LIMITS (callee)((tree_check ((callee), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 577, __FUNCTION__, (FUNCTION_DECL)))->function_decl.disregard_inline_limits ) |
| 578 | && lookup_attribute ("always_inline", |
| 579 | DECL_ATTRIBUTES (callee)((contains_struct_check ((callee), (TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 579, __FUNCTION__))->decl_common.attributes))); |
| 580 | |
| 581 | cgraph_node *callee_node = cgraph_node::get (callee); |
| 582 | /* Callee's isa options should be a subset of the caller's, i.e. a SSE4 |
| 583 | function can inline a SSE2 function but a SSE2 function can't inline |
| 584 | a SSE4 function. */ |
| 585 | if (((caller_opts->x_ix86_isa_flags & callee_opts->x_ix86_isa_flags) |
| 586 | != callee_opts->x_ix86_isa_flags) |
| 587 | || ((caller_opts->x_ix86_isa_flags2 & callee_opts->x_ix86_isa_flags2) |
| 588 | != callee_opts->x_ix86_isa_flags2)) |
| 589 | ret = false; |
| 590 | |
| 591 | /* See if we have the same non-isa options. */ |
| 592 | else if ((!always_inline |
| 593 | && caller_opts->x_target_flags != callee_opts->x_target_flags) |
| 594 | || (caller_opts->x_target_flags & ~always_inline_safe_mask) |
| 595 | != (callee_opts->x_target_flags & ~always_inline_safe_mask)) |
| 596 | ret = false; |
| 597 | |
| 598 | /* See if arch, tune, etc. are the same. */ |
| 599 | else if (caller_opts->arch != callee_opts->arch) |
| 600 | ret = false; |
| 601 | |
| 602 | else if (!always_inline && caller_opts->tune != callee_opts->tune) |
| 603 | ret = false; |
| 604 | |
| 605 | else if (caller_opts->x_ix86_fpmath != callee_opts->x_ix86_fpmath |
| 606 | /* If the calle doesn't use FP expressions differences in |
| 607 | ix86_fpmath can be ignored. We are called from FEs |
| 608 | for multi-versioning call optimization, so beware of |
| 609 | ipa_fn_summaries not available. */ |
| 610 | && (! ipa_fn_summaries |
| 611 | || ipa_fn_summaries->get (callee_node) == NULL__null |
| 612 | || ipa_fn_summaries->get (callee_node)->fp_expressions)) |
| 613 | ret = false; |
| 614 | |
| 615 | else if (!always_inline |
| 616 | && caller_opts->branch_cost != callee_opts->branch_cost) |
| 617 | ret = false; |
| 618 | |
| 619 | else |
| 620 | ret = true; |
| 621 | |
| 622 | return ret; |
| 623 | } |
| 624 | |
| 625 | /* Return true if this goes in large data/bss. */ |
| 626 | |
| 627 | static bool |
| 628 | ix86_in_large_data_p (tree exp) |
| 629 | { |
| 630 | if (ix86_cmodelglobal_options.x_ix86_cmodel != CM_MEDIUM && ix86_cmodelglobal_options.x_ix86_cmodel != CM_MEDIUM_PIC) |
| 631 | return false; |
| 632 | |
| 633 | if (exp == NULL_TREE(tree) __null) |
| 634 | return false; |
| 635 | |
| 636 | /* Functions are never large data. */ |
| 637 | if (TREE_CODE (exp)((enum tree_code) (exp)->base.code) == FUNCTION_DECL) |
| 638 | return false; |
| 639 | |
| 640 | /* Automatic variables are never large data. */ |
| 641 | if (VAR_P (exp)(((enum tree_code) (exp)->base.code) == VAR_DECL) && !is_global_var (exp)) |
| 642 | return false; |
| 643 | |
| 644 | if (VAR_P (exp)(((enum tree_code) (exp)->base.code) == VAR_DECL) && DECL_SECTION_NAME (exp)decl_section_name (exp)) |
| 645 | { |
| 646 | const char *section = DECL_SECTION_NAME (exp)decl_section_name (exp); |
| 647 | if (strcmp (section, ".ldata") == 0 |
| 648 | || strcmp (section, ".lbss") == 0) |
| 649 | return true; |
| 650 | return false; |
| 651 | } |
| 652 | else |
| 653 | { |
| 654 | HOST_WIDE_INTlong size = int_size_in_bytes (TREE_TYPE (exp)((contains_struct_check ((exp), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 654, __FUNCTION__))->typed.type)); |
| 655 | |
| 656 | /* If this is an incomplete type with size 0, then we can't put it |
| 657 | in data because it might be too big when completed. Also, |
| 658 | int_size_in_bytes returns -1 if size can vary or is larger than |
| 659 | an integer in which case also it is safer to assume that it goes in |
| 660 | large data. */ |
| 661 | if (size <= 0 || size > ix86_section_thresholdglobal_options.x_ix86_section_threshold) |
| 662 | return true; |
| 663 | } |
| 664 | |
| 665 | return false; |
| 666 | } |
| 667 | |
| 668 | /* i386-specific section flag to mark large sections. */ |
| 669 | #define SECTION_LARGE0x10000000 SECTION_MACH_DEP0x10000000 |
| 670 | |
| 671 | /* Switch to the appropriate section for output of DECL. |
| 672 | DECL is either a `VAR_DECL' node or a constant of some sort. |
| 673 | RELOC indicates whether forming the initial value of DECL requires |
| 674 | link-time relocations. */ |
| 675 | |
| 676 | ATTRIBUTE_UNUSED__attribute__ ((__unused__)) static section * |
| 677 | x86_64_elf_select_section (tree decl, int reloc, |
| 678 | unsigned HOST_WIDE_INTlong align) |
| 679 | { |
| 680 | if (ix86_in_large_data_p (decl)) |
| 681 | { |
| 682 | const char *sname = NULL__null; |
| 683 | unsigned int flags = SECTION_WRITE0x00200 | SECTION_LARGE0x10000000; |
| 684 | switch (categorize_decl_for_section (decl, reloc)) |
| 685 | { |
| 686 | case SECCAT_DATA: |
| 687 | sname = ".ldata"; |
| 688 | break; |
| 689 | case SECCAT_DATA_REL: |
| 690 | sname = ".ldata.rel"; |
| 691 | break; |
| 692 | case SECCAT_DATA_REL_LOCAL: |
| 693 | sname = ".ldata.rel.local"; |
| 694 | break; |
| 695 | case SECCAT_DATA_REL_RO: |
| 696 | sname = ".ldata.rel.ro"; |
| 697 | break; |
| 698 | case SECCAT_DATA_REL_RO_LOCAL: |
| 699 | sname = ".ldata.rel.ro.local"; |
| 700 | break; |
| 701 | case SECCAT_BSS: |
| 702 | sname = ".lbss"; |
| 703 | flags |= SECTION_BSS0x02000; |
| 704 | break; |
| 705 | case SECCAT_RODATA: |
| 706 | case SECCAT_RODATA_MERGE_STR: |
| 707 | case SECCAT_RODATA_MERGE_STR_INIT: |
| 708 | case SECCAT_RODATA_MERGE_CONST: |
| 709 | sname = ".lrodata"; |
| 710 | flags &= ~SECTION_WRITE0x00200; |
| 711 | break; |
| 712 | case SECCAT_SRODATA: |
| 713 | case SECCAT_SDATA: |
| 714 | case SECCAT_SBSS: |
| 715 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 715, __FUNCTION__)); |
| 716 | case SECCAT_TEXT: |
| 717 | case SECCAT_TDATA: |
| 718 | case SECCAT_TBSS: |
| 719 | /* We don't split these for medium model. Place them into |
| 720 | default sections and hope for best. */ |
| 721 | break; |
| 722 | } |
| 723 | if (sname) |
| 724 | { |
| 725 | /* We might get called with string constants, but get_named_section |
| 726 | doesn't like them as they are not DECLs. Also, we need to set |
| 727 | flags in that case. */ |
| 728 | if (!DECL_P (decl)(tree_code_type[(int) (((enum tree_code) (decl)->base.code ))] == tcc_declaration)) |
| 729 | return get_section (sname, flags, NULL__null); |
| 730 | return get_named_section (decl, sname, reloc); |
| 731 | } |
| 732 | } |
| 733 | return default_elf_select_section (decl, reloc, align); |
| 734 | } |
| 735 | |
| 736 | /* Select a set of attributes for section NAME based on the properties |
| 737 | of DECL and whether or not RELOC indicates that DECL's initializer |
| 738 | might contain runtime relocations. */ |
| 739 | |
| 740 | static unsigned int ATTRIBUTE_UNUSED__attribute__ ((__unused__)) |
| 741 | x86_64_elf_section_type_flags (tree decl, const char *name, int reloc) |
| 742 | { |
| 743 | unsigned int flags = default_section_type_flags (decl, name, reloc); |
| 744 | |
| 745 | if (ix86_in_large_data_p (decl)) |
| 746 | flags |= SECTION_LARGE0x10000000; |
| 747 | |
| 748 | if (decl == NULL_TREE(tree) __null |
| 749 | && (strcmp (name, ".ldata.rel.ro") == 0 |
| 750 | || strcmp (name, ".ldata.rel.ro.local") == 0)) |
| 751 | flags |= SECTION_RELRO0x1000000; |
| 752 | |
| 753 | if (strcmp (name, ".lbss") == 0 |
| 754 | || strncmp (name, ".lbss.", sizeof (".lbss.") - 1) == 0 |
| 755 | || strncmp (name, ".gnu.linkonce.lb.", |
| 756 | sizeof (".gnu.linkonce.lb.") - 1) == 0) |
| 757 | flags |= SECTION_BSS0x02000; |
| 758 | |
| 759 | return flags; |
| 760 | } |
| 761 | |
| 762 | /* Build up a unique section name, expressed as a |
| 763 | STRING_CST node, and assign it to DECL_SECTION_NAME (decl). |
| 764 | RELOC indicates whether the initial value of EXP requires |
| 765 | link-time relocations. */ |
| 766 | |
| 767 | static void ATTRIBUTE_UNUSED__attribute__ ((__unused__)) |
| 768 | x86_64_elf_unique_section (tree decl, int reloc) |
| 769 | { |
| 770 | if (ix86_in_large_data_p (decl)) |
| 771 | { |
| 772 | const char *prefix = NULL__null; |
| 773 | /* We only need to use .gnu.linkonce if we don't have COMDAT groups. */ |
| 774 | bool one_only = DECL_COMDAT_GROUP (decl)decl_comdat_group (decl) && !HAVE_COMDAT_GROUP1; |
| 775 | |
| 776 | switch (categorize_decl_for_section (decl, reloc)) |
| 777 | { |
| 778 | case SECCAT_DATA: |
| 779 | case SECCAT_DATA_REL: |
| 780 | case SECCAT_DATA_REL_LOCAL: |
| 781 | case SECCAT_DATA_REL_RO: |
| 782 | case SECCAT_DATA_REL_RO_LOCAL: |
| 783 | prefix = one_only ? ".ld" : ".ldata"; |
| 784 | break; |
| 785 | case SECCAT_BSS: |
| 786 | prefix = one_only ? ".lb" : ".lbss"; |
| 787 | break; |
| 788 | case SECCAT_RODATA: |
| 789 | case SECCAT_RODATA_MERGE_STR: |
| 790 | case SECCAT_RODATA_MERGE_STR_INIT: |
| 791 | case SECCAT_RODATA_MERGE_CONST: |
| 792 | prefix = one_only ? ".lr" : ".lrodata"; |
| 793 | break; |
| 794 | case SECCAT_SRODATA: |
| 795 | case SECCAT_SDATA: |
| 796 | case SECCAT_SBSS: |
| 797 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 797, __FUNCTION__)); |
| 798 | case SECCAT_TEXT: |
| 799 | case SECCAT_TDATA: |
| 800 | case SECCAT_TBSS: |
| 801 | /* We don't split these for medium model. Place them into |
| 802 | default sections and hope for best. */ |
| 803 | break; |
| 804 | } |
| 805 | if (prefix) |
| 806 | { |
| 807 | const char *name, *linkonce; |
| 808 | char *string; |
| 809 | |
| 810 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))((const char *) (tree_check ((decl_assembler_name (decl)), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 810, __FUNCTION__, (IDENTIFIER_NODE)))->identifier.id.str ); |
| 811 | name = targetm.strip_name_encoding (name); |
| 812 | |
| 813 | /* If we're using one_only, then there needs to be a .gnu.linkonce |
| 814 | prefix to the section name. */ |
| 815 | linkonce = one_only ? ".gnu.linkonce" : ""; |
| 816 | |
| 817 | string = ACONCAT ((linkonce, prefix, ".", name, NULL))(libiberty_concat_ptr = (char *) __builtin_alloca(concat_length (linkonce, prefix, ".", name, __null) + 1), concat_copy2 (linkonce , prefix, ".", name, __null)); |
| 818 | |
| 819 | set_decl_section_name (decl, string); |
| 820 | return; |
| 821 | } |
| 822 | } |
| 823 | default_unique_section (decl, reloc); |
| 824 | } |
| 825 | |
| 826 | #ifdef COMMON_ASM_OP"\t.comm\t" |
| 827 | |
| 828 | #ifndef LARGECOMM_SECTION_ASM_OP"\t.largecomm\t" |
| 829 | #define LARGECOMM_SECTION_ASM_OP"\t.largecomm\t" "\t.largecomm\t" |
| 830 | #endif |
| 831 | |
| 832 | /* This says how to output assembler code to declare an |
| 833 | uninitialized external linkage data object. |
| 834 | |
| 835 | For medium model x86-64 we need to use LARGECOMM_SECTION_ASM_OP opcode for |
| 836 | large objects. */ |
| 837 | void |
| 838 | x86_elf_aligned_decl_common (FILE *file, tree decl, |
| 839 | const char *name, unsigned HOST_WIDE_INTlong size, |
| 840 | int align) |
| 841 | { |
| 842 | if ((ix86_cmodelglobal_options.x_ix86_cmodel == CM_MEDIUM || ix86_cmodelglobal_options.x_ix86_cmodel == CM_MEDIUM_PIC) |
| 843 | && size > (unsigned int)ix86_section_thresholdglobal_options.x_ix86_section_threshold) |
| 844 | { |
| 845 | switch_to_section (get_named_section (decl, ".lbss", 0)); |
| 846 | fputs (LARGECOMM_SECTION_ASM_OP"\t.largecomm\t", file); |
| 847 | } |
| 848 | else |
| 849 | fputs (COMMON_ASM_OP"\t.comm\t", file); |
| 850 | assemble_name (file, name); |
| 851 | fprintf (file, "," HOST_WIDE_INT_PRINT_UNSIGNED"%" "l" "u" ",%u\n", |
| 852 | size, align / BITS_PER_UNIT(8)); |
| 853 | } |
| 854 | #endif |
| 855 | |
| 856 | /* Utility function for targets to use in implementing |
| 857 | ASM_OUTPUT_ALIGNED_BSS. */ |
| 858 | |
| 859 | void |
| 860 | x86_output_aligned_bss (FILE *file, tree decl, const char *name, |
| 861 | unsigned HOST_WIDE_INTlong size, int align) |
| 862 | { |
| 863 | if ((ix86_cmodelglobal_options.x_ix86_cmodel == CM_MEDIUM || ix86_cmodelglobal_options.x_ix86_cmodel == CM_MEDIUM_PIC) |
| 864 | && size > (unsigned int)ix86_section_thresholdglobal_options.x_ix86_section_threshold) |
| 865 | switch_to_section (get_named_section (decl, ".lbss", 0)); |
| 866 | else |
| 867 | switch_to_section (bss_section); |
| 868 | ASM_OUTPUT_ALIGN (file, floor_log2 (align / BITS_PER_UNIT))if ((floor_log2 (align / (8))) != 0) fprintf ((file), "\t.align %d\n" , 1 << (floor_log2 (align / (8)))); |
| 869 | #ifdef ASM_DECLARE_OBJECT_NAME |
| 870 | last_assemble_variable_decl = decl; |
| 871 | ASM_DECLARE_OBJECT_NAME (file, name, decl)do { long size; if (global_options.x_flag_gnu_unique && (decl_comdat_group (decl) != (tree) __null && (((decl )->base.public_flag) || ((contains_struct_check ((decl), ( TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 871, __FUNCTION__))->decl_common.decl_flag_1))) && (!((contains_struct_check ((decl), (TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 871, __FUNCTION__))->decl_common.artificial_flag) || !(( non_type_check ((decl), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 871, __FUNCTION__))->base.readonly_flag))) do { fputs ("\t.type\t" , file); assemble_name (file, name); fputs (", ", file); fprintf (file, "@%s", "gnu_unique_object"); putc ('\n', file); } while (0); else do { fputs ("\t.type\t", file); assemble_name (file , name); fputs (", ", file); fprintf (file, "@%s", "object"); putc ('\n', file); } while (0); size_directive_output = 0; if (!global_options.x_flag_inhibit_size_directive && (decl ) && ((contains_struct_check ((decl), (TS_DECL_COMMON ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 871, __FUNCTION__))->decl_common.size)) { size_directive_output = 1; size = tree_to_uhwi (((contains_struct_check ((decl), ( TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 871, __FUNCTION__))->decl_common.size_unit)); do { long size_ = (size); fputs ("\t.size\t", file); assemble_name (file, name ); fprintf (file, ", " "%" "l" "d" "\n", size_); } while (0); } do { assemble_name ((file), (name)); fputs (":\n", (file)) ; } while (0); } while (0); |
| 872 | #else |
| 873 | /* Standard thing is just output label for the object. */ |
| 874 | ASM_OUTPUT_LABEL (file, name)do { assemble_name ((file), (name)); fputs (":\n", (file)); } while (0); |
| 875 | #endif /* ASM_DECLARE_OBJECT_NAME */ |
| 876 | ASM_OUTPUT_SKIP (file, size ? size : 1)fprintf ((file), "%s" "%" "l" "u" "\n", "\t.zero\t", (size ? size : 1)); |
| 877 | } |
| 878 | |
| 879 | /* Decide whether we must probe the stack before any space allocation |
| 880 | on this target. It's essentially TARGET_STACK_PROBE except when |
| 881 | -fstack-check causes the stack to be already probed differently. */ |
| 882 | |
| 883 | bool |
| 884 | ix86_target_stack_probe (void) |
| 885 | { |
| 886 | /* Do not probe the stack twice if static stack checking is enabled. */ |
| 887 | if (flag_stack_checkglobal_options.x_flag_stack_check == STATIC_BUILTIN_STACK_CHECK) |
| 888 | return false; |
| 889 | |
| 890 | return TARGET_STACK_PROBE((global_options.x_target_flags & (1U << 25)) != 0); |
| 891 | } |
| 892 | |
| 893 | /* Decide whether we can make a sibling call to a function. DECL is the |
| 894 | declaration of the function being targeted by the call and EXP is the |
| 895 | CALL_EXPR representing the call. */ |
| 896 | |
| 897 | static bool |
| 898 | ix86_function_ok_for_sibcall (tree decl, tree exp) |
| 899 | { |
| 900 | tree type, decl_or_type; |
| 901 | rtx a, b; |
| 902 | bool bind_global = decl && !targetm.binds_local_p (decl); |
| 903 | |
| 904 | if (ix86_function_naked (current_function_decl)) |
| 905 | return false; |
| 906 | |
| 907 | /* Sibling call isn't OK if there are no caller-saved registers |
| 908 | since all registers must be preserved before return. */ |
| 909 | if (cfun(cfun + 0)->machine->no_caller_saved_registers) |
| 910 | return false; |
| 911 | |
| 912 | /* If we are generating position-independent code, we cannot sibcall |
| 913 | optimize direct calls to global functions, as the PLT requires |
| 914 | %ebx be live. (Darwin does not have a PLT.) */ |
| 915 | if (!TARGET_MACHO0 |
| 916 | && !TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) |
| 917 | && flag_picglobal_options.x_flag_pic |
| 918 | && flag_pltglobal_options.x_flag_plt |
| 919 | && bind_global) |
| 920 | return false; |
| 921 | |
| 922 | /* If we need to align the outgoing stack, then sibcalling would |
| 923 | unalign the stack, which may break the called function. */ |
| 924 | if (ix86_minimum_incoming_stack_boundary (true) |
| 925 | < PREFERRED_STACK_BOUNDARYix86_preferred_stack_boundary) |
| 926 | return false; |
| 927 | |
| 928 | if (decl) |
| 929 | { |
| 930 | decl_or_type = decl; |
| 931 | type = TREE_TYPE (decl)((contains_struct_check ((decl), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 931, __FUNCTION__))->typed.type); |
| 932 | } |
| 933 | else |
| 934 | { |
| 935 | /* We're looking at the CALL_EXPR, we need the type of the function. */ |
| 936 | type = CALL_EXPR_FN (exp)(*((const_cast<tree*> (tree_operand_check (((tree_check ((exp), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 936, __FUNCTION__, (CALL_EXPR)))), (1), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 936, __FUNCTION__))))); /* pointer expression */ |
| 937 | type = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 937, __FUNCTION__))->typed.type); /* pointer type */ |
| 938 | type = TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 938, __FUNCTION__))->typed.type); /* function type */ |
| 939 | decl_or_type = type; |
| 940 | } |
| 941 | |
| 942 | /* If outgoing reg parm stack space changes, we cannot do sibcall. */ |
| 943 | if ((OUTGOING_REG_PARM_STACK_SPACE (type)(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_function_type_abi (type) == MS_ABI) |
| 944 | != OUTGOING_REG_PARM_STACK_SPACE (TREE_TYPE (current_function_decl))(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_function_type_abi (((contains_struct_check ((current_function_decl), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 944, __FUNCTION__))->typed.type)) == MS_ABI)) |
| 945 | || (REG_PARM_STACK_SPACE (decl_or_type)ix86_reg_parm_stack_space (decl_or_type) |
| 946 | != REG_PARM_STACK_SPACE (current_function_decl)ix86_reg_parm_stack_space (current_function_decl))) |
| 947 | { |
| 948 | maybe_complain_about_tail_call (exp, |
| 949 | "inconsistent size of stack space" |
| 950 | " allocated for arguments which are" |
| 951 | " passed in registers"); |
| 952 | return false; |
| 953 | } |
| 954 | |
| 955 | /* Check that the return value locations are the same. Like |
| 956 | if we are returning floats on the 80387 register stack, we cannot |
| 957 | make a sibcall from a function that doesn't return a float to a |
| 958 | function that does or, conversely, from a function that does return |
| 959 | a float to a function that doesn't; the necessary stack adjustment |
| 960 | would not be executed. This is also the place we notice |
| 961 | differences in the return value ABI. Note that it is ok for one |
| 962 | of the functions to have void return type as long as the return |
| 963 | value of the other is passed in a register. */ |
| 964 | a = ix86_function_value (TREE_TYPE (exp)((contains_struct_check ((exp), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 964, __FUNCTION__))->typed.type), decl_or_type, false); |
| 965 | b = ix86_function_value (TREE_TYPE (DECL_RESULT (cfun->decl))((contains_struct_check ((((tree_check (((cfun + 0)->decl) , "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 965, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result )), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 965, __FUNCTION__))->typed.type), |
| 966 | cfun(cfun + 0)->decl, false); |
| 967 | if (STACK_REG_P (a)((((enum rtx_code) (a)->code) == REG) && ((unsigned long) (((rhs_regno(a)))) - (unsigned long) (8) <= (unsigned long) (15) - (unsigned long) (8))) || STACK_REG_P (b)((((enum rtx_code) (b)->code) == REG) && ((unsigned long) (((rhs_regno(b)))) - (unsigned long) (8) <= (unsigned long) (15) - (unsigned long) (8)))) |
| 968 | { |
| 969 | if (!rtx_equal_p (a, b)) |
| 970 | return false; |
| 971 | } |
| 972 | else if (VOID_TYPE_P (TREE_TYPE (DECL_RESULT (cfun->decl)))(((enum tree_code) (((contains_struct_check ((((tree_check (( (cfun + 0)->decl), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 972, __FUNCTION__, (FUNCTION_DECL)))->decl_non_common.result )), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 972, __FUNCTION__))->typed.type))->base.code) == VOID_TYPE )) |
| 973 | ; |
| 974 | else if (!rtx_equal_p (a, b)) |
| 975 | return false; |
| 976 | |
| 977 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 978 | { |
| 979 | /* The SYSV ABI has more call-clobbered registers; |
| 980 | disallow sibcalls from MS to SYSV. */ |
| 981 | if (cfun(cfun + 0)->machine->call_abi == MS_ABI |
| 982 | && ix86_function_type_abi (type) == SYSV_ABI) |
| 983 | return false; |
| 984 | } |
| 985 | else |
| 986 | { |
| 987 | /* If this call is indirect, we'll need to be able to use a |
| 988 | call-clobbered register for the address of the target function. |
| 989 | Make sure that all such registers are not used for passing |
| 990 | parameters. Note that DLLIMPORT functions and call to global |
| 991 | function via GOT slot are indirect. */ |
| 992 | if (!decl |
| 993 | || (bind_global && flag_picglobal_options.x_flag_pic && !flag_pltglobal_options.x_flag_plt) |
| 994 | || (TARGET_DLLIMPORT_DECL_ATTRIBUTES0 && DECL_DLLIMPORT_P (decl)((contains_struct_check ((decl), (TS_DECL_WITH_VIS), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 994, __FUNCTION__))->decl_with_vis.dllimport_flag)) |
| 995 | || flag_force_indirect_callglobal_options.x_flag_force_indirect_call) |
| 996 | { |
| 997 | /* Check if regparm >= 3 since arg_reg_available is set to |
| 998 | false if regparm == 0. If regparm is 1 or 2, there is |
| 999 | always a call-clobbered register available. |
| 1000 | |
| 1001 | ??? The symbol indirect call doesn't need a call-clobbered |
| 1002 | register. But we don't know if this is a symbol indirect |
| 1003 | call or not here. */ |
| 1004 | if (ix86_function_regparm (type, decl) >= 3 |
| 1005 | && !cfun(cfun + 0)->machine->arg_reg_available) |
| 1006 | return false; |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | /* Otherwise okay. That also includes certain types of indirect calls. */ |
| 1011 | return true; |
| 1012 | } |
| 1013 | |
| 1014 | /* This function determines from TYPE the calling-convention. */ |
| 1015 | |
| 1016 | unsigned int |
| 1017 | ix86_get_callcvt (const_tree type) |
| 1018 | { |
| 1019 | unsigned int ret = 0; |
| 1020 | bool is_stdarg; |
| 1021 | tree attrs; |
| 1022 | |
| 1023 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1024 | return IX86_CALLCVT_CDECL0x1; |
| 1025 | |
| 1026 | attrs = TYPE_ATTRIBUTES (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1026, __FUNCTION__))->type_common.attributes); |
| 1027 | if (attrs != NULL_TREE(tree) __null) |
| 1028 | { |
| 1029 | if (lookup_attribute ("cdecl", attrs)) |
| 1030 | ret |= IX86_CALLCVT_CDECL0x1; |
| 1031 | else if (lookup_attribute ("stdcall", attrs)) |
| 1032 | ret |= IX86_CALLCVT_STDCALL0x2; |
| 1033 | else if (lookup_attribute ("fastcall", attrs)) |
| 1034 | ret |= IX86_CALLCVT_FASTCALL0x4; |
| 1035 | else if (lookup_attribute ("thiscall", attrs)) |
| 1036 | ret |= IX86_CALLCVT_THISCALL0x8; |
| 1037 | |
| 1038 | /* Regparam isn't allowed for thiscall and fastcall. */ |
| 1039 | if ((ret & (IX86_CALLCVT_THISCALL0x8 | IX86_CALLCVT_FASTCALL0x4)) == 0) |
| 1040 | { |
| 1041 | if (lookup_attribute ("regparm", attrs)) |
| 1042 | ret |= IX86_CALLCVT_REGPARM0x10; |
| 1043 | if (lookup_attribute ("sseregparm", attrs)) |
| 1044 | ret |= IX86_CALLCVT_SSEREGPARM0x20; |
| 1045 | } |
| 1046 | |
| 1047 | if (IX86_BASE_CALLCVT(ret)((ret) & (0x1 | 0x2 | 0x4 | 0x8)) != 0) |
| 1048 | return ret; |
| 1049 | } |
| 1050 | |
| 1051 | is_stdarg = stdarg_p (type); |
| 1052 | if (TARGET_RTD((global_options.x_target_flags & (1U << 23)) != 0) && !is_stdarg) |
| 1053 | return IX86_CALLCVT_STDCALL0x2 | ret; |
| 1054 | |
| 1055 | if (ret != 0 |
| 1056 | || is_stdarg |
| 1057 | || TREE_CODE (type)((enum tree_code) (type)->base.code) != METHOD_TYPE |
| 1058 | || ix86_function_type_abi (type) != MS_ABI) |
| 1059 | return IX86_CALLCVT_CDECL0x1 | ret; |
| 1060 | |
| 1061 | return IX86_CALLCVT_THISCALL0x8; |
| 1062 | } |
| 1063 | |
| 1064 | /* Return 0 if the attributes for two types are incompatible, 1 if they |
| 1065 | are compatible, and 2 if they are nearly compatible (which causes a |
| 1066 | warning to be generated). */ |
| 1067 | |
| 1068 | static int |
| 1069 | ix86_comp_type_attributes (const_tree type1, const_tree type2) |
| 1070 | { |
| 1071 | unsigned int ccvt1, ccvt2; |
| 1072 | |
| 1073 | if (TREE_CODE (type1)((enum tree_code) (type1)->base.code) != FUNCTION_TYPE |
| 1074 | && TREE_CODE (type1)((enum tree_code) (type1)->base.code) != METHOD_TYPE) |
| 1075 | return 1; |
| 1076 | |
| 1077 | ccvt1 = ix86_get_callcvt (type1); |
| 1078 | ccvt2 = ix86_get_callcvt (type2); |
| 1079 | if (ccvt1 != ccvt2) |
| 1080 | return 0; |
| 1081 | if (ix86_function_regparm (type1, NULL__null) |
| 1082 | != ix86_function_regparm (type2, NULL__null)) |
| 1083 | return 0; |
| 1084 | |
| 1085 | return 1; |
| 1086 | } |
| 1087 | |
| 1088 | /* Return the regparm value for a function with the indicated TYPE and DECL. |
| 1089 | DECL may be NULL when calling function indirectly |
| 1090 | or considering a libcall. */ |
| 1091 | |
| 1092 | static int |
| 1093 | ix86_function_regparm (const_tree type, const_tree decl) |
| 1094 | { |
| 1095 | tree attr; |
| 1096 | int regparm; |
| 1097 | unsigned int ccvt; |
| 1098 | |
| 1099 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1100 | return (ix86_function_type_abi (type) == SYSV_ABI |
| 1101 | ? X86_64_REGPARM_MAX6 : X86_64_MS_REGPARM_MAX4); |
| 1102 | ccvt = ix86_get_callcvt (type); |
| 1103 | regparm = ix86_regparmglobal_options.x_ix86_regparm; |
| 1104 | |
| 1105 | if ((ccvt & IX86_CALLCVT_REGPARM0x10) != 0) |
| 1106 | { |
| 1107 | attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1107, __FUNCTION__))->type_common.attributes)); |
| 1108 | if (attr) |
| 1109 | { |
| 1110 | regparm = TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr)))((unsigned long) (*tree_int_cst_elt_check ((((tree_check (((( tree_check ((attr), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1110, __FUNCTION__, (TREE_LIST)))->list.value)), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1110, __FUNCTION__, (TREE_LIST)))->list.value)), (0), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1110, __FUNCTION__))); |
| 1111 | return regparm; |
| 1112 | } |
| 1113 | } |
| 1114 | else if ((ccvt & IX86_CALLCVT_FASTCALL0x4) != 0) |
| 1115 | return 2; |
| 1116 | else if ((ccvt & IX86_CALLCVT_THISCALL0x8) != 0) |
| 1117 | return 1; |
| 1118 | |
| 1119 | /* Use register calling convention for local functions when possible. */ |
| 1120 | if (decl |
| 1121 | && TREE_CODE (decl)((enum tree_code) (decl)->base.code) == FUNCTION_DECL) |
| 1122 | { |
| 1123 | cgraph_node *target = cgraph_node::get (decl); |
| 1124 | if (target) |
| 1125 | target = target->function_symbol (); |
| 1126 | |
| 1127 | /* Caller and callee must agree on the calling convention, so |
| 1128 | checking here just optimize means that with |
| 1129 | __attribute__((optimize (...))) caller could use regparm convention |
| 1130 | and callee not, or vice versa. Instead look at whether the callee |
| 1131 | is optimized or not. */ |
| 1132 | if (target && opt_for_fn (target->decl, optimize)(opts_for_fn (target->decl)->x_optimize) |
| 1133 | && !(profile_flagglobal_options.x_profile_flag && !flag_fentryglobal_options.x_flag_fentry)) |
| 1134 | { |
| 1135 | if (target->local && target->can_change_signature) |
| 1136 | { |
| 1137 | int local_regparm, globals = 0, regno; |
| 1138 | |
| 1139 | /* Make sure no regparm register is taken by a |
| 1140 | fixed register variable. */ |
| 1141 | for (local_regparm = 0; local_regparm < REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI) ? 4 : 6) : 3 ); |
| 1142 | local_regparm++) |
| 1143 | if (fixed_regs(this_target_hard_regs->x_fixed_regs)[local_regparm]) |
| 1144 | break; |
| 1145 | |
| 1146 | /* We don't want to use regparm(3) for nested functions as |
| 1147 | these use a static chain pointer in the third argument. */ |
| 1148 | if (local_regparm == 3 && DECL_STATIC_CHAIN (target->decl)((tree_check ((target->decl), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1148, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.regdecl_flag )) |
| 1149 | local_regparm = 2; |
| 1150 | |
| 1151 | /* Save a register for the split stack. */ |
| 1152 | if (flag_split_stackglobal_options.x_flag_split_stack) |
| 1153 | { |
| 1154 | if (local_regparm == 3) |
| 1155 | local_regparm = 2; |
| 1156 | else if (local_regparm == 2 |
| 1157 | && DECL_STATIC_CHAIN (target->decl)((tree_check ((target->decl), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1157, __FUNCTION__, (FUNCTION_DECL)))->decl_with_vis.regdecl_flag )) |
| 1158 | local_regparm = 1; |
| 1159 | } |
| 1160 | |
| 1161 | /* Each fixed register usage increases register pressure, |
| 1162 | so less registers should be used for argument passing. |
| 1163 | This functionality can be overriden by an explicit |
| 1164 | regparm value. */ |
| 1165 | for (regno = AX_REG0; regno <= DI_REG5; regno++) |
| 1166 | if (fixed_regs(this_target_hard_regs->x_fixed_regs)[regno]) |
| 1167 | globals++; |
| 1168 | |
| 1169 | local_regparm |
| 1170 | = globals < local_regparm ? local_regparm - globals : 0; |
| 1171 | |
| 1172 | if (local_regparm > regparm) |
| 1173 | regparm = local_regparm; |
| 1174 | } |
| 1175 | } |
| 1176 | } |
| 1177 | |
| 1178 | return regparm; |
| 1179 | } |
| 1180 | |
| 1181 | /* Return 1 or 2, if we can pass up to SSE_REGPARM_MAX SFmode (1) and |
| 1182 | DFmode (2) arguments in SSE registers for a function with the |
| 1183 | indicated TYPE and DECL. DECL may be NULL when calling function |
| 1184 | indirectly or considering a libcall. Return -1 if any FP parameter |
| 1185 | should be rejected by error. This is used in siutation we imply SSE |
| 1186 | calling convetion but the function is called from another function with |
| 1187 | SSE disabled. Otherwise return 0. */ |
| 1188 | |
| 1189 | static int |
| 1190 | ix86_function_sseregparm (const_tree type, const_tree decl, bool warn) |
| 1191 | { |
| 1192 | gcc_assert (!TARGET_64BIT)((void)(!(!((global_options.x_ix86_isa_flags & (1UL << 1)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1192, __FUNCTION__), 0 : 0)); |
| 1193 | |
| 1194 | /* Use SSE registers to pass SFmode and DFmode arguments if requested |
| 1195 | by the sseregparm attribute. */ |
| 1196 | if (TARGET_SSEREGPARM((global_options.x_target_flags & (1U << 24)) != 0) |
| 1197 | || (type && lookup_attribute ("sseregparm", TYPE_ATTRIBUTES (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1197, __FUNCTION__))->type_common.attributes)))) |
| 1198 | { |
| 1199 | if (!TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 1200 | { |
| 1201 | if (warn) |
| 1202 | { |
| 1203 | if (decl) |
| 1204 | error ("calling %qD with attribute sseregparm without " |
| 1205 | "SSE/SSE2 enabled", decl); |
| 1206 | else |
| 1207 | error ("calling %qT with attribute sseregparm without " |
| 1208 | "SSE/SSE2 enabled", type); |
| 1209 | } |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | return 2; |
| 1214 | } |
| 1215 | |
| 1216 | if (!decl) |
| 1217 | return 0; |
| 1218 | |
| 1219 | cgraph_node *target = cgraph_node::get (decl); |
| 1220 | if (target) |
| 1221 | target = target->function_symbol (); |
| 1222 | |
| 1223 | /* For local functions, pass up to SSE_REGPARM_MAX SFmode |
| 1224 | (and DFmode for SSE2) arguments in SSE registers. */ |
| 1225 | if (target |
| 1226 | /* TARGET_SSE_MATH */ |
| 1227 | && (target_opts_for_fn (target->decl)->x_ix86_fpmath & FPMATH_SSE) |
| 1228 | && opt_for_fn (target->decl, optimize)(opts_for_fn (target->decl)->x_optimize) |
| 1229 | && !(profile_flagglobal_options.x_profile_flag && !flag_fentryglobal_options.x_flag_fentry)) |
| 1230 | { |
| 1231 | if (target->local && target->can_change_signature) |
| 1232 | { |
| 1233 | /* Refuse to produce wrong code when local function with SSE enabled |
| 1234 | is called from SSE disabled function. |
| 1235 | FIXME: We need a way to detect these cases cross-ltrans partition |
| 1236 | and avoid using SSE calling conventions on local functions called |
| 1237 | from function with SSE disabled. For now at least delay the |
| 1238 | warning until we know we are going to produce wrong code. |
| 1239 | See PR66047 */ |
| 1240 | if (!TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && warn) |
| 1241 | return -1; |
| 1242 | return TARGET_SSE2_P (target_opts_for_fn (target->decl)(((target_opts_for_fn (target->decl) ->x_ix86_isa_flags ) & (1UL << 51)) != 0) |
| 1243 | ->x_ix86_isa_flags)(((target_opts_for_fn (target->decl) ->x_ix86_isa_flags ) & (1UL << 51)) != 0) ? 2 : 1; |
| 1244 | } |
| 1245 | } |
| 1246 | |
| 1247 | return 0; |
| 1248 | } |
| 1249 | |
| 1250 | /* Return true if EAX is live at the start of the function. Used by |
| 1251 | ix86_expand_prologue to determine if we need special help before |
| 1252 | calling allocate_stack_worker. */ |
| 1253 | |
| 1254 | static bool |
| 1255 | ix86_eax_live_at_start_p (void) |
| 1256 | { |
| 1257 | /* Cheat. Don't bother working forward from ix86_function_regparm |
| 1258 | to the function type to whether an actual argument is located in |
| 1259 | eax. Instead just look at cfg info, which is still close enough |
| 1260 | to correct at this point. This gives false positives for broken |
| 1261 | functions that might use uninitialized data that happens to be |
| 1262 | allocated in eax, but who cares? */ |
| 1263 | return REGNO_REG_SET_P (df_get_live_out (ENTRY_BLOCK_PTR_FOR_FN (cfun)), 0)bitmap_bit_p (df_get_live_out ((((cfun + 0))->cfg->x_entry_block_ptr )), 0); |
| 1264 | } |
| 1265 | |
| 1266 | static bool |
| 1267 | ix86_keep_aggregate_return_pointer (tree fntype) |
| 1268 | { |
| 1269 | tree attr; |
| 1270 | |
| 1271 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1272 | { |
| 1273 | attr = lookup_attribute ("callee_pop_aggregate_return", |
| 1274 | TYPE_ATTRIBUTES (fntype)((tree_class_check ((fntype), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1274, __FUNCTION__))->type_common.attributes)); |
| 1275 | if (attr) |
| 1276 | return (TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr)))((unsigned long) (*tree_int_cst_elt_check ((((tree_check (((( tree_check ((attr), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1276, __FUNCTION__, (TREE_LIST)))->list.value)), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1276, __FUNCTION__, (TREE_LIST)))->list.value)), (0), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1276, __FUNCTION__))) == 0); |
| 1277 | |
| 1278 | /* For 32-bit MS-ABI the default is to keep aggregate |
| 1279 | return pointer. */ |
| 1280 | if (ix86_function_type_abi (fntype) == MS_ABI) |
| 1281 | return true; |
| 1282 | } |
| 1283 | return KEEP_AGGREGATE_RETURN_POINTER0 != 0; |
| 1284 | } |
| 1285 | |
| 1286 | /* Value is the number of bytes of arguments automatically |
| 1287 | popped when returning from a subroutine call. |
| 1288 | FUNDECL is the declaration node of the function (as a tree), |
| 1289 | FUNTYPE is the data type of the function (as a tree), |
| 1290 | or for a library call it is an identifier node for the subroutine name. |
| 1291 | SIZE is the number of bytes of arguments passed on the stack. |
| 1292 | |
| 1293 | On the 80386, the RTD insn may be used to pop them if the number |
| 1294 | of args is fixed, but if the number is variable then the caller |
| 1295 | must pop them all. RTD can't be used for library calls now |
| 1296 | because the library is compiled with the Unix compiler. |
| 1297 | Use of RTD is a selectable option, since it is incompatible with |
| 1298 | standard Unix calling sequences. If the option is not selected, |
| 1299 | the caller must always pop the args. |
| 1300 | |
| 1301 | The attribute stdcall is equivalent to RTD on a per module basis. */ |
| 1302 | |
| 1303 | static poly_int64 |
| 1304 | ix86_return_pops_args (tree fundecl, tree funtype, poly_int64 size) |
| 1305 | { |
| 1306 | unsigned int ccvt; |
| 1307 | |
| 1308 | /* None of the 64-bit ABIs pop arguments. */ |
| 1309 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1310 | return 0; |
| 1311 | |
| 1312 | ccvt = ix86_get_callcvt (funtype); |
| 1313 | |
| 1314 | if ((ccvt & (IX86_CALLCVT_STDCALL0x2 | IX86_CALLCVT_FASTCALL0x4 |
| 1315 | | IX86_CALLCVT_THISCALL0x8)) != 0 |
| 1316 | && ! stdarg_p (funtype)) |
| 1317 | return size; |
| 1318 | |
| 1319 | /* Lose any fake structure return argument if it is passed on the stack. */ |
| 1320 | if (aggregate_value_p (TREE_TYPE (funtype)((contains_struct_check ((funtype), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1320, __FUNCTION__))->typed.type), fundecl) |
| 1321 | && !ix86_keep_aggregate_return_pointer (funtype)) |
| 1322 | { |
| 1323 | int nregs = ix86_function_regparm (funtype, fundecl); |
| 1324 | if (nregs == 0) |
| 1325 | return GET_MODE_SIZE (Pmode)((unsigned short) mode_to_bytes ((global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ((scalar_int_mode::from_int) E_DImode )) : (scalar_int_mode ((scalar_int_mode::from_int) E_SImode)) )).coeffs[0]); |
| 1326 | } |
| 1327 | |
| 1328 | return 0; |
| 1329 | } |
| 1330 | |
| 1331 | /* Implement the TARGET_LEGITIMATE_COMBINED_INSN hook. */ |
| 1332 | |
| 1333 | static bool |
| 1334 | ix86_legitimate_combined_insn (rtx_insn *insn) |
| 1335 | { |
| 1336 | int i; |
| 1337 | |
| 1338 | /* Check operand constraints in case hard registers were propagated |
| 1339 | into insn pattern. This check prevents combine pass from |
| 1340 | generating insn patterns with invalid hard register operands. |
| 1341 | These invalid insns can eventually confuse reload to error out |
| 1342 | with a spill failure. See also PRs 46829 and 46843. */ |
| 1343 | |
| 1344 | gcc_assert (INSN_CODE (insn) >= 0)((void)(!((((insn)->u.fld[5]).rt_int) >= 0) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1344, __FUNCTION__), 0 : 0)); |
| 1345 | |
| 1346 | extract_insn (insn); |
| 1347 | preprocess_constraints (insn); |
| 1348 | |
| 1349 | int n_operands = recog_data.n_operands; |
| 1350 | int n_alternatives = recog_data.n_alternatives; |
| 1351 | for (i = 0; i < n_operands; i++) |
| 1352 | { |
| 1353 | rtx op = recog_data.operand[i]; |
| 1354 | machine_mode mode = GET_MODE (op)((machine_mode) (op)->mode); |
| 1355 | const operand_alternative *op_alt; |
| 1356 | int offset = 0; |
| 1357 | bool win; |
| 1358 | int j; |
| 1359 | |
| 1360 | /* A unary operator may be accepted by the predicate, but it |
| 1361 | is irrelevant for matching constraints. */ |
| 1362 | if (UNARY_P (op)((rtx_class[(int) (((enum rtx_code) (op)->code))]) == RTX_UNARY )) |
| 1363 | op = XEXP (op, 0)(((op)->u.fld[0]).rt_rtx); |
| 1364 | |
| 1365 | if (SUBREG_P (op)(((enum rtx_code) (op)->code) == SUBREG)) |
| 1366 | { |
| 1367 | if (REG_P (SUBREG_REG (op))(((enum rtx_code) ((((op)->u.fld[0]).rt_rtx))->code) == REG) |
| 1368 | && REGNO (SUBREG_REG (op))(rhs_regno((((op)->u.fld[0]).rt_rtx))) < FIRST_PSEUDO_REGISTER76) |
| 1369 | offset = subreg_regno_offset (REGNO (SUBREG_REG (op))(rhs_regno((((op)->u.fld[0]).rt_rtx))), |
| 1370 | GET_MODE (SUBREG_REG (op))((machine_mode) ((((op)->u.fld[0]).rt_rtx))->mode), |
| 1371 | SUBREG_BYTE (op)(((op)->u.fld[1]).rt_subreg), |
| 1372 | GET_MODE (op)((machine_mode) (op)->mode)); |
| 1373 | op = SUBREG_REG (op)(((op)->u.fld[0]).rt_rtx); |
| 1374 | } |
| 1375 | |
| 1376 | if (!(REG_P (op)(((enum rtx_code) (op)->code) == REG) && HARD_REGISTER_P (op)((((rhs_regno(op))) < 76)))) |
| 1377 | continue; |
| 1378 | |
| 1379 | op_alt = recog_op_alt; |
| 1380 | |
| 1381 | /* Operand has no constraints, anything is OK. */ |
| 1382 | win = !n_alternatives; |
| 1383 | |
| 1384 | alternative_mask preferred = get_preferred_alternatives (insn); |
| 1385 | for (j = 0; j < n_alternatives; j++, op_alt += n_operands) |
| 1386 | { |
| 1387 | if (!TEST_BIT (preferred, j)(((preferred) >> (j)) & 1)) |
| 1388 | continue; |
| 1389 | if (op_alt[i].anything_ok |
| 1390 | || (op_alt[i].matches != -1 |
| 1391 | && operands_match_p |
| 1392 | (recog_data.operand[i], |
| 1393 | recog_data.operand[op_alt[i].matches])) |
| 1394 | || reg_fits_class_p (op, op_alt[i].cl, offset, mode)) |
| 1395 | { |
| 1396 | win = true; |
| 1397 | break; |
| 1398 | } |
| 1399 | } |
| 1400 | |
| 1401 | if (!win) |
| 1402 | return false; |
| 1403 | } |
| 1404 | |
| 1405 | return true; |
| 1406 | } |
| 1407 | |
| 1408 | /* Implement the TARGET_ASAN_SHADOW_OFFSET hook. */ |
| 1409 | |
| 1410 | static unsigned HOST_WIDE_INTlong |
| 1411 | ix86_asan_shadow_offset (void) |
| 1412 | { |
| 1413 | return SUBTARGET_SHADOW_OFFSET(((global_options.x_ix86_isa_flags & (1UL << 4)) != 0) ? 0x7fff8000L : 1L << 29); |
| 1414 | } |
| 1415 | |
| 1416 | /* Argument support functions. */ |
| 1417 | |
| 1418 | /* Return true when register may be used to pass function parameters. */ |
| 1419 | bool |
| 1420 | ix86_function_arg_regno_p (int regno) |
| 1421 | { |
| 1422 | int i; |
| 1423 | enum calling_abi call_abi; |
| 1424 | const int *parm_regs; |
| 1425 | |
| 1426 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && SSE_REGNO_P (regno)(((unsigned long) ((regno)) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) || ((unsigned long) ((regno )) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) || ((unsigned long) ((regno)) - (unsigned long) ( 52) <= (unsigned long) (67) - (unsigned long) (52))) |
| 1427 | && regno < FIRST_SSE_REG20 + SSE_REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI) ? 4 : 8) : ( ((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) ? (0 ? 4 : 3) : 0))) |
| 1428 | return true; |
| 1429 | |
| 1430 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1431 | return (regno < REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI) ? 4 : 6) : 3 ) |
| 1432 | || (TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0) && MMX_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (28) <= (unsigned long) (35) - (unsigned long) (28)) |
| 1433 | && regno < FIRST_MMX_REG28 + MMX_REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 0 : (((global_options.x_ix86_isa_flags & (1UL << 36)) != 0) ? (0 ? 0 : 3) : 0)))); |
| 1434 | |
| 1435 | /* TODO: The function should depend on current function ABI but |
| 1436 | builtins.c would need updating then. Therefore we use the |
| 1437 | default ABI. */ |
| 1438 | call_abi = ix86_cfun_abi (); |
| 1439 | |
| 1440 | /* RAX is used as hidden argument to va_arg functions. */ |
| 1441 | if (call_abi == SYSV_ABI && regno == AX_REG0) |
| 1442 | return true; |
| 1443 | |
| 1444 | if (call_abi == MS_ABI) |
| 1445 | parm_regs = x86_64_ms_abi_int_parameter_registers; |
| 1446 | else |
| 1447 | parm_regs = x86_64_int_parameter_registers; |
| 1448 | |
| 1449 | for (i = 0; i < (call_abi == MS_ABI |
| 1450 | ? X86_64_MS_REGPARM_MAX4 : X86_64_REGPARM_MAX6); i++) |
| 1451 | if (regno == parm_regs[i]) |
| 1452 | return true; |
| 1453 | return false; |
| 1454 | } |
| 1455 | |
| 1456 | /* Return if we do not know how to pass ARG solely in registers. */ |
| 1457 | |
| 1458 | static bool |
| 1459 | ix86_must_pass_in_stack (const function_arg_info &arg) |
| 1460 | { |
| 1461 | if (must_pass_in_stack_var_size_or_pad (arg)) |
| 1462 | return true; |
| 1463 | |
| 1464 | /* For 32-bit, we want TImode aggregates to go on the stack. But watch out! |
| 1465 | The layout_type routine is crafty and tries to trick us into passing |
| 1466 | currently unsupported vector types on the stack by using TImode. */ |
| 1467 | return (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && arg.mode == TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode)) |
| 1468 | && arg.type && TREE_CODE (arg.type)((enum tree_code) (arg.type)->base.code) != VECTOR_TYPE); |
| 1469 | } |
| 1470 | |
| 1471 | /* It returns the size, in bytes, of the area reserved for arguments passed |
| 1472 | in registers for the function represented by fndecl dependent to the used |
| 1473 | abi format. */ |
| 1474 | int |
| 1475 | ix86_reg_parm_stack_space (const_tree fndecl) |
| 1476 | { |
| 1477 | enum calling_abi call_abi = SYSV_ABI; |
| 1478 | if (fndecl != NULL_TREE(tree) __null && TREE_CODE (fndecl)((enum tree_code) (fndecl)->base.code) == FUNCTION_DECL) |
| 1479 | call_abi = ix86_function_abi (fndecl); |
| 1480 | else |
| 1481 | call_abi = ix86_function_type_abi (fndecl); |
| 1482 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && call_abi == MS_ABI) |
| 1483 | return 32; |
| 1484 | return 0; |
| 1485 | } |
| 1486 | |
| 1487 | /* We add this as a workaround in order to use libc_has_function |
| 1488 | hook in i386.md. */ |
| 1489 | bool |
| 1490 | ix86_libc_has_function (enum function_class fn_class) |
| 1491 | { |
| 1492 | return targetm.libc_has_function (fn_class, NULL_TREE(tree) __null); |
| 1493 | } |
| 1494 | |
| 1495 | /* Returns value SYSV_ABI, MS_ABI dependent on fntype, |
| 1496 | specifying the call abi used. */ |
| 1497 | enum calling_abi |
| 1498 | ix86_function_type_abi (const_tree fntype) |
| 1499 | { |
| 1500 | enum calling_abi abi = ix86_abiglobal_options.x_ix86_abi; |
| 1501 | |
| 1502 | if (fntype == NULL_TREE(tree) __null || TYPE_ATTRIBUTES (fntype)((tree_class_check ((fntype), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1502, __FUNCTION__))->type_common.attributes) == NULL_TREE(tree) __null) |
| 1503 | return abi; |
| 1504 | |
| 1505 | if (abi == SYSV_ABI |
| 1506 | && lookup_attribute ("ms_abi", TYPE_ATTRIBUTES (fntype)((tree_class_check ((fntype), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1506, __FUNCTION__))->type_common.attributes))) |
| 1507 | { |
| 1508 | static int warned; |
| 1509 | if (TARGET_X32((global_options.x_ix86_isa_flags & (1UL << 58)) != 0) && !warned) |
| 1510 | { |
| 1511 | error ("X32 does not support %<ms_abi%> attribute"); |
| 1512 | warned = 1; |
| 1513 | } |
| 1514 | |
| 1515 | abi = MS_ABI; |
| 1516 | } |
| 1517 | else if (abi == MS_ABI |
| 1518 | && lookup_attribute ("sysv_abi", TYPE_ATTRIBUTES (fntype)((tree_class_check ((fntype), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1518, __FUNCTION__))->type_common.attributes))) |
| 1519 | abi = SYSV_ABI; |
| 1520 | |
| 1521 | return abi; |
| 1522 | } |
| 1523 | |
| 1524 | enum calling_abi |
| 1525 | ix86_function_abi (const_tree fndecl) |
| 1526 | { |
| 1527 | return fndecl ? ix86_function_type_abi (TREE_TYPE (fndecl)((contains_struct_check ((fndecl), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1527, __FUNCTION__))->typed.type)) : ix86_abiglobal_options.x_ix86_abi; |
| 1528 | } |
| 1529 | |
| 1530 | /* Returns value SYSV_ABI, MS_ABI dependent on cfun, |
| 1531 | specifying the call abi used. */ |
| 1532 | enum calling_abi |
| 1533 | ix86_cfun_abi (void) |
| 1534 | { |
| 1535 | return cfun(cfun + 0) ? cfun(cfun + 0)->machine->call_abi : ix86_abiglobal_options.x_ix86_abi; |
| 1536 | } |
| 1537 | |
| 1538 | bool |
| 1539 | ix86_function_ms_hook_prologue (const_tree fn) |
| 1540 | { |
| 1541 | if (fn && lookup_attribute ("ms_hook_prologue", DECL_ATTRIBUTES (fn)((contains_struct_check ((fn), (TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1541, __FUNCTION__))->decl_common.attributes))) |
| 1542 | { |
| 1543 | if (decl_function_context (fn) != NULL_TREE(tree) __null) |
| 1544 | error_at (DECL_SOURCE_LOCATION (fn)((contains_struct_check ((fn), (TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1544, __FUNCTION__))->decl_minimal.locus), |
| 1545 | "%<ms_hook_prologue%> attribute is not compatible " |
| 1546 | "with nested function"); |
| 1547 | else |
| 1548 | return true; |
| 1549 | } |
| 1550 | return false; |
| 1551 | } |
| 1552 | |
| 1553 | bool |
| 1554 | ix86_function_naked (const_tree fn) |
| 1555 | { |
| 1556 | if (fn && lookup_attribute ("naked", DECL_ATTRIBUTES (fn)((contains_struct_check ((fn), (TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1556, __FUNCTION__))->decl_common.attributes))) |
| 1557 | return true; |
| 1558 | |
| 1559 | return false; |
| 1560 | } |
| 1561 | |
| 1562 | /* Write the extra assembler code needed to declare a function properly. */ |
| 1563 | |
| 1564 | void |
| 1565 | ix86_asm_output_function_label (FILE *asm_out_file, const char *fname, |
| 1566 | tree decl) |
| 1567 | { |
| 1568 | bool is_ms_hook = ix86_function_ms_hook_prologue (decl); |
| 1569 | |
| 1570 | if (cfun(cfun + 0)) |
| 1571 | cfun(cfun + 0)->machine->function_label_emitted = true; |
| 1572 | |
| 1573 | if (is_ms_hook) |
| 1574 | { |
| 1575 | int i, filler_count = (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) ? 32 : 16); |
| 1576 | unsigned int filler_cc = 0xcccccccc; |
| 1577 | |
| 1578 | for (i = 0; i < filler_count; i += 4) |
| 1579 | fprintf (asm_out_file, ASM_LONG"\t.long\t" " %#x\n", filler_cc); |
| 1580 | } |
| 1581 | |
| 1582 | #ifdef SUBTARGET_ASM_UNWIND_INIT |
| 1583 | SUBTARGET_ASM_UNWIND_INIT (asm_out_file); |
| 1584 | #endif |
| 1585 | |
| 1586 | ASM_OUTPUT_LABEL (asm_out_file, fname)do { assemble_name ((asm_out_file), (fname)); fputs (":\n", ( asm_out_file)); } while (0); |
| 1587 | |
| 1588 | /* Output magic byte marker, if hot-patch attribute is set. */ |
| 1589 | if (is_ms_hook) |
| 1590 | { |
| 1591 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1592 | { |
| 1593 | /* leaq [%rsp + 0], %rsp */ |
| 1594 | fputs (ASM_BYTE"\t.byte\t" "0x48, 0x8d, 0xa4, 0x24, 0x00, 0x00, 0x00, 0x00\n", |
| 1595 | asm_out_file); |
| 1596 | } |
| 1597 | else |
| 1598 | { |
| 1599 | /* movl.s %edi, %edi |
| 1600 | push %ebp |
| 1601 | movl.s %esp, %ebp */ |
| 1602 | fputs (ASM_BYTE"\t.byte\t" "0x8b, 0xff, 0x55, 0x8b, 0xec\n", asm_out_file); |
| 1603 | } |
| 1604 | } |
| 1605 | } |
| 1606 | |
| 1607 | /* Implementation of call abi switching target hook. Specific to FNDECL |
| 1608 | the specific call register sets are set. See also |
| 1609 | ix86_conditional_register_usage for more details. */ |
| 1610 | void |
| 1611 | ix86_call_abi_override (const_tree fndecl) |
| 1612 | { |
| 1613 | cfun(cfun + 0)->machine->call_abi = ix86_function_abi (fndecl); |
| 1614 | } |
| 1615 | |
| 1616 | /* Return 1 if pseudo register should be created and used to hold |
| 1617 | GOT address for PIC code. */ |
| 1618 | bool |
| 1619 | ix86_use_pseudo_pic_reg (void) |
| 1620 | { |
| 1621 | if ((TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) |
| 1622 | && (ix86_cmodelglobal_options.x_ix86_cmodel == CM_SMALL_PIC |
| 1623 | || TARGET_PECOFF0)) |
| 1624 | || !flag_picglobal_options.x_flag_pic) |
| 1625 | return false; |
| 1626 | return true; |
| 1627 | } |
| 1628 | |
| 1629 | /* Initialize large model PIC register. */ |
| 1630 | |
| 1631 | static void |
| 1632 | ix86_init_large_pic_reg (unsigned int tmp_regno) |
| 1633 | { |
| 1634 | rtx_code_label *label; |
| 1635 | rtx tmp_reg; |
| 1636 | |
| 1637 | gcc_assert (Pmode == DImode)((void)(!((global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ((scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ( (scalar_int_mode::from_int) E_SImode))) == (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode))) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1637, __FUNCTION__), 0 : 0)); |
| 1638 | label = gen_label_rtx (); |
| 1639 | emit_label (label); |
| 1640 | LABEL_PRESERVE_P (label)(__extension__ ({ __typeof ((label)) const _rtx = ((label)); if (((enum rtx_code) (_rtx)->code) != CODE_LABEL && ( (enum rtx_code) (_rtx)->code) != NOTE) rtl_check_failed_flag ("LABEL_PRESERVE_P",_rtx, "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1640, __FUNCTION__); _rtx; })->in_struct) = 1; |
| 1641 | tmp_reg = gen_rtx_REG (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), tmp_regno); |
| 1642 | gcc_assert (REGNO (pic_offset_table_rtx) != tmp_regno)((void)(!((rhs_regno((this_target_rtl->x_pic_offset_table_rtx ))) != tmp_regno) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1642, __FUNCTION__), 0 : 0)); |
| 1643 | emit_insn (gen_set_rip_rex64 (pic_offset_table_rtx(this_target_rtl->x_pic_offset_table_rtx), |
| 1644 | label)); |
| 1645 | emit_insn (gen_set_got_offset_rex64 (tmp_reg, label)); |
| 1646 | emit_insn (gen_add2_insn (pic_offset_table_rtx(this_target_rtl->x_pic_offset_table_rtx), tmp_reg)); |
| 1647 | const char *name = LABEL_NAME (label)(((label)->u.fld[6]).rt_str); |
| 1648 | PUT_CODE (label, NOTE)((label)->code = (NOTE)); |
| 1649 | NOTE_KIND (label)(((label)->u.fld[4]).rt_int) = NOTE_INSN_DELETED_LABEL; |
| 1650 | NOTE_DELETED_LABEL_NAME (label)(((label)->u.fld[3]).rt_str) = name; |
| 1651 | } |
| 1652 | |
| 1653 | /* Create and initialize PIC register if required. */ |
| 1654 | static void |
| 1655 | ix86_init_pic_reg (void) |
| 1656 | { |
| 1657 | edge entry_edge; |
| 1658 | rtx_insn *seq; |
| 1659 | |
| 1660 | if (!ix86_use_pseudo_pic_reg ()) |
| 1661 | return; |
| 1662 | |
| 1663 | start_sequence (); |
| 1664 | |
| 1665 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1666 | { |
| 1667 | if (ix86_cmodelglobal_options.x_ix86_cmodel == CM_LARGE_PIC) |
| 1668 | ix86_init_large_pic_reg (R11_REG39); |
| 1669 | else |
| 1670 | emit_insn (gen_set_got_rex64 (pic_offset_table_rtx(this_target_rtl->x_pic_offset_table_rtx))); |
| 1671 | } |
| 1672 | else |
| 1673 | { |
| 1674 | /* If there is future mcount call in the function it is more profitable |
| 1675 | to emit SET_GOT into ABI defined REAL_PIC_OFFSET_TABLE_REGNUM. */ |
| 1676 | rtx reg = crtl(&x_rtl)->profile |
| 1677 | ? gen_rtx_REG (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), REAL_PIC_OFFSET_TABLE_REGNUM(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 43 : 3)) |
| 1678 | : pic_offset_table_rtx(this_target_rtl->x_pic_offset_table_rtx); |
| 1679 | rtx_insn *insn = emit_insn (gen_set_got (reg)); |
| 1680 | RTX_FRAME_RELATED_P (insn)(__extension__ ({ __typeof ((insn)) const _rtx = ((insn)); if (((enum rtx_code) (_rtx)->code) != DEBUG_INSN && ( (enum rtx_code) (_rtx)->code) != INSN && ((enum rtx_code ) (_rtx)->code) != CALL_INSN && ((enum rtx_code) ( _rtx)->code) != JUMP_INSN && ((enum rtx_code) (_rtx )->code) != BARRIER && ((enum rtx_code) (_rtx)-> code) != SET) rtl_check_failed_flag ("RTX_FRAME_RELATED_P",_rtx , "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1680, __FUNCTION__); _rtx; })->frame_related) = 1; |
| 1681 | if (crtl(&x_rtl)->profile) |
| 1682 | emit_move_insn (pic_offset_table_rtx(this_target_rtl->x_pic_offset_table_rtx), reg); |
| 1683 | add_reg_note (insn, REG_CFA_FLUSH_QUEUE, NULL_RTX(rtx) 0); |
| 1684 | } |
| 1685 | |
| 1686 | seq = get_insns (); |
| 1687 | end_sequence (); |
| 1688 | |
| 1689 | entry_edge = single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun)(((cfun + 0))->cfg->x_entry_block_ptr)); |
| 1690 | insert_insn_on_edge (seq, entry_edge); |
| 1691 | commit_one_edge_insertion (entry_edge); |
| 1692 | } |
| 1693 | |
| 1694 | /* Initialize a variable CUM of type CUMULATIVE_ARGS |
| 1695 | for a call to a function whose data type is FNTYPE. |
| 1696 | For a library call, FNTYPE is 0. */ |
| 1697 | |
| 1698 | void |
| 1699 | init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */ |
| 1700 | tree fntype, /* tree ptr for function decl */ |
| 1701 | rtx libname, /* SYMBOL_REF of library name or 0 */ |
| 1702 | tree fndecl, |
| 1703 | int caller) |
| 1704 | { |
| 1705 | struct cgraph_node *local_info_node = NULL__null; |
| 1706 | struct cgraph_node *target = NULL__null; |
| 1707 | |
| 1708 | memset (cum, 0, sizeof (*cum)); |
| 1709 | |
| 1710 | if (fndecl) |
| 1711 | { |
| 1712 | target = cgraph_node::get (fndecl); |
| 1713 | if (target) |
| 1714 | { |
| 1715 | target = target->function_symbol (); |
| 1716 | local_info_node = cgraph_node::local_info_node (target->decl); |
| 1717 | cum->call_abi = ix86_function_abi (target->decl); |
| 1718 | } |
| 1719 | else |
| 1720 | cum->call_abi = ix86_function_abi (fndecl); |
| 1721 | } |
| 1722 | else |
| 1723 | cum->call_abi = ix86_function_type_abi (fntype); |
| 1724 | |
| 1725 | cum->caller = caller; |
| 1726 | |
| 1727 | /* Set up the number of registers to use for passing arguments. */ |
| 1728 | cum->nregs = ix86_regparmglobal_options.x_ix86_regparm; |
| 1729 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1730 | { |
| 1731 | cum->nregs = (cum->call_abi == SYSV_ABI |
| 1732 | ? X86_64_REGPARM_MAX6 |
| 1733 | : X86_64_MS_REGPARM_MAX4); |
| 1734 | } |
| 1735 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 1736 | { |
| 1737 | cum->sse_nregs = SSE_REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI) ? 4 : 8) : ( ((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) ? (0 ? 4 : 3) : 0)); |
| 1738 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1739 | { |
| 1740 | cum->sse_nregs = (cum->call_abi == SYSV_ABI |
| 1741 | ? X86_64_SSE_REGPARM_MAX8 |
| 1742 | : X86_64_MS_SSE_REGPARM_MAX4); |
| 1743 | } |
| 1744 | } |
| 1745 | if (TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0)) |
| 1746 | cum->mmx_nregs = MMX_REGPARM_MAX(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 0 : (((global_options.x_ix86_isa_flags & (1UL << 36)) != 0) ? (0 ? 0 : 3) : 0)); |
| 1747 | cum->warn_avx512f = true; |
| 1748 | cum->warn_avx = true; |
| 1749 | cum->warn_sse = true; |
| 1750 | cum->warn_mmx = true; |
| 1751 | |
| 1752 | /* Because type might mismatch in between caller and callee, we need to |
| 1753 | use actual type of function for local calls. |
| 1754 | FIXME: cgraph_analyze can be told to actually record if function uses |
| 1755 | va_start so for local functions maybe_vaarg can be made aggressive |
| 1756 | helping K&R code. |
| 1757 | FIXME: once typesytem is fixed, we won't need this code anymore. */ |
| 1758 | if (local_info_node && local_info_node->local |
| 1759 | && local_info_node->can_change_signature) |
| 1760 | fntype = TREE_TYPE (target->decl)((contains_struct_check ((target->decl), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1760, __FUNCTION__))->typed.type); |
| 1761 | cum->stdarg = stdarg_p (fntype); |
| 1762 | cum->maybe_vaarg = (fntype |
| 1763 | ? (!prototype_p (fntype) || stdarg_p (fntype)) |
| 1764 | : !libname); |
| 1765 | |
| 1766 | cum->decl = fndecl; |
| 1767 | |
| 1768 | cum->warn_empty = !warn_abiglobal_options.x_warn_abi || cum->stdarg; |
| 1769 | if (!cum->warn_empty && fntype) |
| 1770 | { |
| 1771 | function_args_iterator iter; |
| 1772 | tree argtype; |
| 1773 | bool seen_empty_type = false; |
| 1774 | FOREACH_FUNCTION_ARGS (fntype, argtype, iter)for (function_args_iter_init (&(iter), (fntype)); (argtype = function_args_iter_cond (&(iter))) != (tree) __null; function_args_iter_next (&(iter))) |
| 1775 | { |
| 1776 | if (argtype == error_mark_nodeglobal_trees[TI_ERROR_MARK] || VOID_TYPE_P (argtype)(((enum tree_code) (argtype)->base.code) == VOID_TYPE)) |
| 1777 | break; |
| 1778 | if (TYPE_EMPTY_P (argtype)((tree_class_check ((argtype), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1778, __FUNCTION__))->type_common.empty_flag)) |
| 1779 | seen_empty_type = true; |
| 1780 | else if (seen_empty_type) |
| 1781 | { |
| 1782 | cum->warn_empty = true; |
| 1783 | break; |
| 1784 | } |
| 1785 | } |
| 1786 | } |
| 1787 | |
| 1788 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1789 | { |
| 1790 | /* If there are variable arguments, then we won't pass anything |
| 1791 | in registers in 32-bit mode. */ |
| 1792 | if (stdarg_p (fntype)) |
| 1793 | { |
| 1794 | cum->nregs = 0; |
| 1795 | /* Since in 32-bit, variable arguments are always passed on |
| 1796 | stack, there is scratch register available for indirect |
| 1797 | sibcall. */ |
| 1798 | cfun(cfun + 0)->machine->arg_reg_available = true; |
| 1799 | cum->sse_nregs = 0; |
| 1800 | cum->mmx_nregs = 0; |
| 1801 | cum->warn_avx512f = false; |
| 1802 | cum->warn_avx = false; |
| 1803 | cum->warn_sse = false; |
| 1804 | cum->warn_mmx = false; |
| 1805 | return; |
| 1806 | } |
| 1807 | |
| 1808 | /* Use ecx and edx registers if function has fastcall attribute, |
| 1809 | else look for regparm information. */ |
| 1810 | if (fntype) |
| 1811 | { |
| 1812 | unsigned int ccvt = ix86_get_callcvt (fntype); |
| 1813 | if ((ccvt & IX86_CALLCVT_THISCALL0x8) != 0) |
| 1814 | { |
| 1815 | cum->nregs = 1; |
| 1816 | cum->fastcall = 1; /* Same first register as in fastcall. */ |
| 1817 | } |
| 1818 | else if ((ccvt & IX86_CALLCVT_FASTCALL0x4) != 0) |
| 1819 | { |
| 1820 | cum->nregs = 2; |
| 1821 | cum->fastcall = 1; |
| 1822 | } |
| 1823 | else |
| 1824 | cum->nregs = ix86_function_regparm (fntype, fndecl); |
| 1825 | } |
| 1826 | |
| 1827 | /* Set up the number of SSE registers used for passing SFmode |
| 1828 | and DFmode arguments. Warn for mismatching ABI. */ |
| 1829 | cum->float_in_sse = ix86_function_sseregparm (fntype, fndecl, true); |
| 1830 | } |
| 1831 | |
| 1832 | cfun(cfun + 0)->machine->arg_reg_available = (cum->nregs > 0); |
| 1833 | } |
| 1834 | |
| 1835 | /* Return the "natural" mode for TYPE. In most cases, this is just TYPE_MODE. |
| 1836 | But in the case of vector types, it is some vector mode. |
| 1837 | |
| 1838 | When we have only some of our vector isa extensions enabled, then there |
| 1839 | are some modes for which vector_mode_supported_p is false. For these |
| 1840 | modes, the generic vector support in gcc will choose some non-vector mode |
| 1841 | in order to implement the type. By computing the natural mode, we'll |
| 1842 | select the proper ABI location for the operand and not depend on whatever |
| 1843 | the middle-end decides to do with these vector types. |
| 1844 | |
| 1845 | The midde-end can't deal with the vector types > 16 bytes. In this |
| 1846 | case, we return the original mode and warn ABI change if CUM isn't |
| 1847 | NULL. |
| 1848 | |
| 1849 | If INT_RETURN is true, warn ABI change if the vector mode isn't |
| 1850 | available for function return value. */ |
| 1851 | |
| 1852 | static machine_mode |
| 1853 | type_natural_mode (const_tree type, const CUMULATIVE_ARGS *cum, |
| 1854 | bool in_return) |
| 1855 | { |
| 1856 | machine_mode mode = TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1856, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 1857 | |
| 1858 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == VECTOR_TYPE && !VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM)) |
| 1859 | { |
| 1860 | HOST_WIDE_INTlong size = int_size_in_bytes (type); |
| 1861 | if ((size == 8 || size == 16 || size == 32 || size == 64) |
| 1862 | /* ??? Generic code allows us to create width 1 vectors. Ignore. */ |
| 1863 | && TYPE_VECTOR_SUBPARTS (type) > 1) |
| 1864 | { |
| 1865 | machine_mode innermode = TYPE_MODE (TREE_TYPE (type))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1865, __FUNCTION__))->typed.type)), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1865, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1865, __FUNCTION__))->typed.type)) : (((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1865, __FUNCTION__))->typed.type))->type_common.mode); |
| 1866 | |
| 1867 | /* There are no XFmode vector modes. */ |
| 1868 | if (innermode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode))) |
| 1869 | return mode; |
| 1870 | |
| 1871 | if (TREE_CODE (TREE_TYPE (type))((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1871, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE) |
| 1872 | mode = MIN_MODE_VECTOR_FLOAT; |
| 1873 | else |
| 1874 | mode = MIN_MODE_VECTOR_INT; |
| 1875 | |
| 1876 | /* Get the mode which has this inner mode and number of units. */ |
| 1877 | FOR_EACH_MODE_FROM (mode, mode)for ((mode) = (mode); mode_iterator::iterate_p (&(mode)); mode_iterator::get_wider (&(mode))) |
| 1878 | if (GET_MODE_NUNITS (mode)(mode_to_nunits (mode).coeffs[0]) == TYPE_VECTOR_SUBPARTS (type) |
| 1879 | && GET_MODE_INNER (mode)(mode_to_inner (mode)) == innermode) |
| 1880 | { |
| 1881 | if (size == 64 && !TARGET_AVX512F((global_options.x_ix86_isa_flags & (1UL << 15)) != 0) && !TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 1882 | { |
| 1883 | static bool warnedavx512f; |
| 1884 | static bool warnedavx512f_ret; |
| 1885 | |
| 1886 | if (cum && cum->warn_avx512f && !warnedavx512f) |
| 1887 | { |
| 1888 | if (warning (OPT_Wpsabi, "AVX512F vector argument " |
| 1889 | "without AVX512F enabled changes the ABI")) |
| 1890 | warnedavx512f = true; |
| 1891 | } |
| 1892 | else if (in_return && !warnedavx512f_ret) |
| 1893 | { |
| 1894 | if (warning (OPT_Wpsabi, "AVX512F vector return " |
| 1895 | "without AVX512F enabled changes the ABI")) |
| 1896 | warnedavx512f_ret = true; |
| 1897 | } |
| 1898 | |
| 1899 | return TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1899, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 1900 | } |
| 1901 | else if (size == 32 && !TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ) && !TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 1902 | { |
| 1903 | static bool warnedavx; |
| 1904 | static bool warnedavx_ret; |
| 1905 | |
| 1906 | if (cum && cum->warn_avx && !warnedavx) |
| 1907 | { |
| 1908 | if (warning (OPT_Wpsabi, "AVX vector argument " |
| 1909 | "without AVX enabled changes the ABI")) |
| 1910 | warnedavx = true; |
| 1911 | } |
| 1912 | else if (in_return && !warnedavx_ret) |
| 1913 | { |
| 1914 | if (warning (OPT_Wpsabi, "AVX vector return " |
| 1915 | "without AVX enabled changes the ABI")) |
| 1916 | warnedavx_ret = true; |
| 1917 | } |
| 1918 | |
| 1919 | return TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1919, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 1920 | } |
| 1921 | else if (((size == 8 && TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) || size == 16) |
| 1922 | && !TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) |
| 1923 | && !TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 1924 | { |
| 1925 | static bool warnedsse; |
| 1926 | static bool warnedsse_ret; |
| 1927 | |
| 1928 | if (cum && cum->warn_sse && !warnedsse) |
| 1929 | { |
| 1930 | if (warning (OPT_Wpsabi, "SSE vector argument " |
| 1931 | "without SSE enabled changes the ABI")) |
| 1932 | warnedsse = true; |
| 1933 | } |
| 1934 | else if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && in_return && !warnedsse_ret) |
| 1935 | { |
| 1936 | if (warning (OPT_Wpsabi, "SSE vector return " |
| 1937 | "without SSE enabled changes the ABI")) |
| 1938 | warnedsse_ret = true; |
| 1939 | } |
| 1940 | } |
| 1941 | else if ((size == 8 && !TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 1942 | && (!cfun(cfun + 0) |
| 1943 | || cfun(cfun + 0)->machine->func_type == TYPE_NORMAL) |
| 1944 | && !TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0) |
| 1945 | && !TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 1946 | { |
| 1947 | static bool warnedmmx; |
| 1948 | static bool warnedmmx_ret; |
| 1949 | |
| 1950 | if (cum && cum->warn_mmx && !warnedmmx) |
| 1951 | { |
| 1952 | if (warning (OPT_Wpsabi, "MMX vector argument " |
| 1953 | "without MMX enabled changes the ABI")) |
| 1954 | warnedmmx = true; |
| 1955 | } |
| 1956 | else if (in_return && !warnedmmx_ret) |
| 1957 | { |
| 1958 | if (warning (OPT_Wpsabi, "MMX vector return " |
| 1959 | "without MMX enabled changes the ABI")) |
| 1960 | warnedmmx_ret = true; |
| 1961 | } |
| 1962 | } |
| 1963 | return mode; |
| 1964 | } |
| 1965 | |
| 1966 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 1966, __FUNCTION__)); |
| 1967 | } |
| 1968 | } |
| 1969 | |
| 1970 | return mode; |
| 1971 | } |
| 1972 | |
| 1973 | /* We want to pass a value in REGNO whose "natural" mode is MODE. However, |
| 1974 | this may not agree with the mode that the type system has chosen for the |
| 1975 | register, which is ORIG_MODE. If ORIG_MODE is not BLKmode, then we can |
| 1976 | go ahead and use it. Otherwise we have to build a PARALLEL instead. */ |
| 1977 | |
| 1978 | static rtx |
| 1979 | gen_reg_or_parallel (machine_mode mode, machine_mode orig_mode, |
| 1980 | unsigned int regno) |
| 1981 | { |
| 1982 | rtx tmp; |
| 1983 | |
| 1984 | if (orig_mode != BLKmode((void) 0, E_BLKmode)) |
| 1985 | tmp = gen_rtx_REG (orig_mode, regno); |
| 1986 | else |
| 1987 | { |
| 1988 | tmp = gen_rtx_REG (mode, regno); |
| 1989 | tmp = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), tmp, const0_rtx(const_int_rtx[64])); |
| 1990 | tmp = gen_rtx_PARALLEL (orig_mode, gen_rtvec (1, tmp))gen_rtx_fmt_E_stat ((PARALLEL), ((orig_mode)), ((gen_rtvec (1 , tmp))) ); |
| 1991 | } |
| 1992 | |
| 1993 | return tmp; |
| 1994 | } |
| 1995 | |
| 1996 | /* x86-64 register passing implementation. See x86-64 ABI for details. Goal |
| 1997 | of this code is to classify each 8bytes of incoming argument by the register |
| 1998 | class and assign registers accordingly. */ |
| 1999 | |
| 2000 | /* Return the union class of CLASS1 and CLASS2. |
| 2001 | See the x86-64 PS ABI for details. */ |
| 2002 | |
| 2003 | static enum x86_64_reg_class |
| 2004 | merge_classes (enum x86_64_reg_class class1, enum x86_64_reg_class class2) |
| 2005 | { |
| 2006 | /* Rule #1: If both classes are equal, this is the resulting class. */ |
| 2007 | if (class1 == class2) |
| 2008 | return class1; |
| 2009 | |
| 2010 | /* Rule #2: If one of the classes is NO_CLASS, the resulting class is |
| 2011 | the other class. */ |
| 2012 | if (class1 == X86_64_NO_CLASS) |
| 2013 | return class2; |
| 2014 | if (class2 == X86_64_NO_CLASS) |
| 2015 | return class1; |
| 2016 | |
| 2017 | /* Rule #3: If one of the classes is MEMORY, the result is MEMORY. */ |
| 2018 | if (class1 == X86_64_MEMORY_CLASS || class2 == X86_64_MEMORY_CLASS) |
| 2019 | return X86_64_MEMORY_CLASS; |
| 2020 | |
| 2021 | /* Rule #4: If one of the classes is INTEGER, the result is INTEGER. */ |
| 2022 | if ((class1 == X86_64_INTEGERSI_CLASS && class2 == X86_64_SSESF_CLASS) |
| 2023 | || (class2 == X86_64_INTEGERSI_CLASS && class1 == X86_64_SSESF_CLASS)) |
| 2024 | return X86_64_INTEGERSI_CLASS; |
| 2025 | if (class1 == X86_64_INTEGER_CLASS || class1 == X86_64_INTEGERSI_CLASS |
| 2026 | || class2 == X86_64_INTEGER_CLASS || class2 == X86_64_INTEGERSI_CLASS) |
| 2027 | return X86_64_INTEGER_CLASS; |
| 2028 | |
| 2029 | /* Rule #5: If one of the classes is X87, X87UP, or COMPLEX_X87 class, |
| 2030 | MEMORY is used. */ |
| 2031 | if (class1 == X86_64_X87_CLASS |
| 2032 | || class1 == X86_64_X87UP_CLASS |
| 2033 | || class1 == X86_64_COMPLEX_X87_CLASS |
| 2034 | || class2 == X86_64_X87_CLASS |
| 2035 | || class2 == X86_64_X87UP_CLASS |
| 2036 | || class2 == X86_64_COMPLEX_X87_CLASS) |
| 2037 | return X86_64_MEMORY_CLASS; |
| 2038 | |
| 2039 | /* Rule #6: Otherwise class SSE is used. */ |
| 2040 | return X86_64_SSE_CLASS; |
| 2041 | } |
| 2042 | |
| 2043 | /* Classify the argument of type TYPE and mode MODE. |
| 2044 | CLASSES will be filled by the register class used to pass each word |
| 2045 | of the operand. The number of words is returned. In case the parameter |
| 2046 | should be passed in memory, 0 is returned. As a special case for zero |
| 2047 | sized containers, classes[0] will be NO_CLASS and 1 is returned. |
| 2048 | |
| 2049 | BIT_OFFSET is used internally for handling records and specifies offset |
| 2050 | of the offset in bits modulo 512 to avoid overflow cases. |
| 2051 | |
| 2052 | See the x86-64 PS ABI for details. |
| 2053 | */ |
| 2054 | |
| 2055 | static int |
| 2056 | classify_argument (machine_mode mode, const_tree type, |
| 2057 | enum x86_64_reg_class classes[MAX_CLASSES8], int bit_offset) |
| 2058 | { |
| 2059 | HOST_WIDE_INTlong bytes |
| 2060 | = mode == BLKmode((void) 0, E_BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]); |
| 2061 | int words = CEIL (bytes + (bit_offset % 64) / 8, UNITS_PER_WORD)(((bytes + (bit_offset % 64) / 8) + ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)) - 1) / ((((global_options .x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 2062 | |
| 2063 | /* Variable sized entities are always passed/returned in memory. */ |
| 2064 | if (bytes < 0) |
| 2065 | return 0; |
| 2066 | |
| 2067 | if (mode != VOIDmode((void) 0, E_VOIDmode)) |
| 2068 | { |
| 2069 | /* The value of "named" doesn't matter. */ |
| 2070 | function_arg_info arg (const_cast<tree> (type), mode, /*named=*/true); |
| 2071 | if (targetm.calls.must_pass_in_stack (arg)) |
| 2072 | return 0; |
| 2073 | } |
| 2074 | |
| 2075 | if (type && AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 2076 | { |
| 2077 | int i; |
| 2078 | tree field; |
| 2079 | enum x86_64_reg_class subclasses[MAX_CLASSES8]; |
| 2080 | |
| 2081 | /* On x86-64 we pass structures larger than 64 bytes on the stack. */ |
| 2082 | if (bytes > 64) |
| 2083 | return 0; |
| 2084 | |
| 2085 | for (i = 0; i < words; i++) |
| 2086 | classes[i] = X86_64_NO_CLASS; |
| 2087 | |
| 2088 | /* Zero sized arrays or structures are NO_CLASS. We return 0 to |
| 2089 | signalize memory class, so handle it as special case. */ |
| 2090 | if (!words) |
| 2091 | { |
| 2092 | classes[0] = X86_64_NO_CLASS; |
| 2093 | return 1; |
| 2094 | } |
| 2095 | |
| 2096 | /* Classify each field of record and merge classes. */ |
| 2097 | switch (TREE_CODE (type)((enum tree_code) (type)->base.code)) |
| 2098 | { |
| 2099 | case RECORD_TYPE: |
| 2100 | /* And now merge the fields of structure. */ |
| 2101 | for (field = TYPE_FIELDS (type)((tree_check3 ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2101, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); field; field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2101, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2101, __FUNCTION__))->common.chain))) |
| 2102 | { |
| 2103 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) == FIELD_DECL) |
| 2104 | { |
| 2105 | int num; |
| 2106 | |
| 2107 | if (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2107, __FUNCTION__))->typed.type) == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 2108 | continue; |
| 2109 | |
| 2110 | /* Bitfields are always classified as integer. Handle them |
| 2111 | early, since later code would consider them to be |
| 2112 | misaligned integers. */ |
| 2113 | if (DECL_BIT_FIELD (field)((tree_check ((field), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2113, __FUNCTION__, (FIELD_DECL)))->decl_common.decl_flag_1 )) |
| 2114 | { |
| 2115 | for (i = (int_bit_position (field) |
| 2116 | + (bit_offset % 64)) / 8 / 8; |
| 2117 | i < ((int_bit_position (field) + (bit_offset % 64)) |
| 2118 | + tree_to_shwi (DECL_SIZE (field)((contains_struct_check ((field), (TS_DECL_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2118, __FUNCTION__))->decl_common.size)) |
| 2119 | + 63) / 8 / 8; i++) |
| 2120 | classes[i] |
| 2121 | = merge_classes (X86_64_INTEGER_CLASS, classes[i]); |
| 2122 | } |
| 2123 | else |
| 2124 | { |
| 2125 | int pos; |
| 2126 | |
| 2127 | type = TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2127, __FUNCTION__))->typed.type); |
| 2128 | |
| 2129 | /* Flexible array member is ignored. */ |
| 2130 | if (TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2130, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode) == BLKmode((void) 0, E_BLKmode) |
| 2131 | && TREE_CODE (type)((enum tree_code) (type)->base.code) == ARRAY_TYPE |
| 2132 | && TYPE_SIZE (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2132, __FUNCTION__))->type_common.size) == NULL_TREE(tree) __null |
| 2133 | && TYPE_DOMAIN (type)((tree_check ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2133, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values ) != NULL_TREE(tree) __null |
| 2134 | && (TYPE_MAX_VALUE (TYPE_DOMAIN (type))((tree_check5 ((((tree_check ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2134, __FUNCTION__, (ARRAY_TYPE)))->type_non_common.values )), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2134, __FUNCTION__, (INTEGER_TYPE), (ENUMERAL_TYPE), (BOOLEAN_TYPE ), (REAL_TYPE), (FIXED_POINT_TYPE)))->type_non_common.maxval ) |
| 2135 | == NULL_TREE(tree) __null)) |
| 2136 | { |
| 2137 | static bool warned; |
| 2138 | |
| 2139 | if (!warned && warn_psabiglobal_options.x_warn_psabi) |
| 2140 | { |
| 2141 | warned = true; |
| 2142 | inform (input_location, |
| 2143 | "the ABI of passing struct with" |
| 2144 | " a flexible array member has" |
| 2145 | " changed in GCC 4.4"); |
| 2146 | } |
| 2147 | continue; |
| 2148 | } |
| 2149 | num = classify_argument (TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2149, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode), type, |
| 2150 | subclasses, |
| 2151 | (int_bit_position (field) |
| 2152 | + bit_offset) % 512); |
| 2153 | if (!num) |
| 2154 | return 0; |
| 2155 | pos = (int_bit_position (field) |
| 2156 | + (bit_offset % 64)) / 8 / 8; |
| 2157 | for (i = 0; i < num && (i + pos) < words; i++) |
| 2158 | classes[i + pos] |
| 2159 | = merge_classes (subclasses[i], classes[i + pos]); |
| 2160 | } |
| 2161 | } |
| 2162 | } |
| 2163 | break; |
| 2164 | |
| 2165 | case ARRAY_TYPE: |
| 2166 | /* Arrays are handled as small records. */ |
| 2167 | { |
| 2168 | int num; |
| 2169 | num = classify_argument (TYPE_MODE (TREE_TYPE (type))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2169, __FUNCTION__))->typed.type)), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2169, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2169, __FUNCTION__))->typed.type)) : (((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2169, __FUNCTION__))->typed.type))->type_common.mode), |
| 2170 | TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2170, __FUNCTION__))->typed.type), subclasses, bit_offset); |
| 2171 | if (!num) |
| 2172 | return 0; |
| 2173 | |
| 2174 | /* The partial classes are now full classes. */ |
| 2175 | if (subclasses[0] == X86_64_SSESF_CLASS && bytes != 4) |
| 2176 | subclasses[0] = X86_64_SSE_CLASS; |
| 2177 | if (subclasses[0] == X86_64_INTEGERSI_CLASS |
| 2178 | && !((bit_offset % 64) == 0 && bytes == 4)) |
| 2179 | subclasses[0] = X86_64_INTEGER_CLASS; |
| 2180 | |
| 2181 | for (i = 0; i < words; i++) |
| 2182 | classes[i] = subclasses[i % num]; |
| 2183 | |
| 2184 | break; |
| 2185 | } |
| 2186 | case UNION_TYPE: |
| 2187 | case QUAL_UNION_TYPE: |
| 2188 | /* Unions are similar to RECORD_TYPE but offset is always 0. |
| 2189 | */ |
| 2190 | for (field = TYPE_FIELDS (type)((tree_check3 ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2190, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); field; field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2190, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2190, __FUNCTION__))->common.chain))) |
| 2191 | { |
| 2192 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) == FIELD_DECL) |
| 2193 | { |
| 2194 | int num; |
| 2195 | |
| 2196 | if (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2196, __FUNCTION__))->typed.type) == error_mark_nodeglobal_trees[TI_ERROR_MARK]) |
| 2197 | continue; |
| 2198 | |
| 2199 | num = classify_argument (TYPE_MODE (TREE_TYPE (field))((((enum tree_code) ((tree_class_check ((((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2199, __FUNCTION__))->typed.type)), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2199, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2199, __FUNCTION__))->typed.type)) : (((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2199, __FUNCTION__))->typed.type))->type_common.mode), |
| 2200 | TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2200, __FUNCTION__))->typed.type), subclasses, |
| 2201 | bit_offset); |
| 2202 | if (!num) |
| 2203 | return 0; |
| 2204 | for (i = 0; i < num && i < words; i++) |
| 2205 | classes[i] = merge_classes (subclasses[i], classes[i]); |
| 2206 | } |
| 2207 | } |
| 2208 | break; |
| 2209 | |
| 2210 | default: |
| 2211 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2211, __FUNCTION__)); |
| 2212 | } |
| 2213 | |
| 2214 | if (words > 2) |
| 2215 | { |
| 2216 | /* When size > 16 bytes, if the first one isn't |
| 2217 | X86_64_SSE_CLASS or any other ones aren't |
| 2218 | X86_64_SSEUP_CLASS, everything should be passed in |
| 2219 | memory. */ |
| 2220 | if (classes[0] != X86_64_SSE_CLASS) |
| 2221 | return 0; |
| 2222 | |
| 2223 | for (i = 1; i < words; i++) |
| 2224 | if (classes[i] != X86_64_SSEUP_CLASS) |
| 2225 | return 0; |
| 2226 | } |
| 2227 | |
| 2228 | /* Final merger cleanup. */ |
| 2229 | for (i = 0; i < words; i++) |
| 2230 | { |
| 2231 | /* If one class is MEMORY, everything should be passed in |
| 2232 | memory. */ |
| 2233 | if (classes[i] == X86_64_MEMORY_CLASS) |
| 2234 | return 0; |
| 2235 | |
| 2236 | /* The X86_64_SSEUP_CLASS should be always preceded by |
| 2237 | X86_64_SSE_CLASS or X86_64_SSEUP_CLASS. */ |
| 2238 | if (classes[i] == X86_64_SSEUP_CLASS |
| 2239 | && classes[i - 1] != X86_64_SSE_CLASS |
| 2240 | && classes[i - 1] != X86_64_SSEUP_CLASS) |
| 2241 | { |
| 2242 | /* The first one should never be X86_64_SSEUP_CLASS. */ |
| 2243 | gcc_assert (i != 0)((void)(!(i != 0) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2243, __FUNCTION__), 0 : 0)); |
| 2244 | classes[i] = X86_64_SSE_CLASS; |
| 2245 | } |
| 2246 | |
| 2247 | /* If X86_64_X87UP_CLASS isn't preceded by X86_64_X87_CLASS, |
| 2248 | everything should be passed in memory. */ |
| 2249 | if (classes[i] == X86_64_X87UP_CLASS |
| 2250 | && (classes[i - 1] != X86_64_X87_CLASS)) |
| 2251 | { |
| 2252 | static bool warned; |
| 2253 | |
| 2254 | /* The first one should never be X86_64_X87UP_CLASS. */ |
| 2255 | gcc_assert (i != 0)((void)(!(i != 0) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2255, __FUNCTION__), 0 : 0)); |
| 2256 | if (!warned && warn_psabiglobal_options.x_warn_psabi) |
| 2257 | { |
| 2258 | warned = true; |
| 2259 | inform (input_location, |
| 2260 | "the ABI of passing union with %<long double%>" |
| 2261 | " has changed in GCC 4.4"); |
| 2262 | } |
| 2263 | return 0; |
| 2264 | } |
| 2265 | } |
| 2266 | return words; |
| 2267 | } |
| 2268 | |
| 2269 | /* Compute alignment needed. We align all types to natural boundaries with |
| 2270 | exception of XFmode that is aligned to 64bits. */ |
| 2271 | if (mode != VOIDmode((void) 0, E_VOIDmode) && mode != BLKmode((void) 0, E_BLKmode)) |
| 2272 | { |
| 2273 | int mode_alignment = GET_MODE_BITSIZE (mode)((unsigned short) mode_to_bits (mode).coeffs[0]); |
| 2274 | |
| 2275 | if (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode))) |
| 2276 | mode_alignment = 128; |
| 2277 | else if (mode == XCmode(complex_mode ((complex_mode::from_int) E_XCmode))) |
| 2278 | mode_alignment = 256; |
| 2279 | if (COMPLEX_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_COMPLEX_INT || ( (enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT)) |
| 2280 | mode_alignment /= 2; |
| 2281 | /* Misaligned fields are always returned in memory. */ |
| 2282 | if (bit_offset % mode_alignment) |
| 2283 | return 0; |
| 2284 | } |
| 2285 | |
| 2286 | /* for V1xx modes, just use the base mode */ |
| 2287 | if (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && mode != V1DImode((void) 0, E_V1DImode) && mode != V1TImode((void) 0, E_V1TImode) |
| 2288 | && GET_MODE_UNIT_SIZE (mode)mode_to_unit_size (mode) == bytes) |
| 2289 | mode = GET_MODE_INNER (mode)(mode_to_inner (mode)); |
| 2290 | |
| 2291 | /* Classification of atomic types. */ |
| 2292 | switch (mode) |
| 2293 | { |
| 2294 | case E_SDmode: |
| 2295 | case E_DDmode: |
| 2296 | classes[0] = X86_64_SSE_CLASS; |
| 2297 | return 1; |
| 2298 | case E_TDmode: |
| 2299 | classes[0] = X86_64_SSE_CLASS; |
| 2300 | classes[1] = X86_64_SSEUP_CLASS; |
| 2301 | return 2; |
| 2302 | case E_DImode: |
| 2303 | case E_SImode: |
| 2304 | case E_HImode: |
| 2305 | case E_QImode: |
| 2306 | case E_CSImode: |
| 2307 | case E_CHImode: |
| 2308 | case E_CQImode: |
| 2309 | { |
| 2310 | int size = bit_offset + (int) GET_MODE_BITSIZE (mode)((unsigned short) mode_to_bits (mode).coeffs[0]); |
| 2311 | |
| 2312 | /* Analyze last 128 bits only. */ |
| 2313 | size = (size - 1) & 0x7f; |
| 2314 | |
| 2315 | if (size < 32) |
| 2316 | { |
| 2317 | classes[0] = X86_64_INTEGERSI_CLASS; |
| 2318 | return 1; |
| 2319 | } |
| 2320 | else if (size < 64) |
| 2321 | { |
| 2322 | classes[0] = X86_64_INTEGER_CLASS; |
| 2323 | return 1; |
| 2324 | } |
| 2325 | else if (size < 64+32) |
| 2326 | { |
| 2327 | classes[0] = X86_64_INTEGER_CLASS; |
| 2328 | classes[1] = X86_64_INTEGERSI_CLASS; |
| 2329 | return 2; |
| 2330 | } |
| 2331 | else if (size < 64+64) |
| 2332 | { |
| 2333 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; |
| 2334 | return 2; |
| 2335 | } |
| 2336 | else |
| 2337 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2337, __FUNCTION__)); |
| 2338 | } |
| 2339 | case E_CDImode: |
| 2340 | case E_TImode: |
| 2341 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; |
| 2342 | return 2; |
| 2343 | case E_COImode: |
| 2344 | case E_OImode: |
| 2345 | /* OImode shouldn't be used directly. */ |
| 2346 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2346, __FUNCTION__)); |
| 2347 | case E_CTImode: |
| 2348 | return 0; |
| 2349 | case E_SFmode: |
| 2350 | if (!(bit_offset % 64)) |
| 2351 | classes[0] = X86_64_SSESF_CLASS; |
| 2352 | else |
| 2353 | classes[0] = X86_64_SSE_CLASS; |
| 2354 | return 1; |
| 2355 | case E_DFmode: |
| 2356 | classes[0] = X86_64_SSEDF_CLASS; |
| 2357 | return 1; |
| 2358 | case E_XFmode: |
| 2359 | classes[0] = X86_64_X87_CLASS; |
| 2360 | classes[1] = X86_64_X87UP_CLASS; |
| 2361 | return 2; |
| 2362 | case E_TFmode: |
| 2363 | classes[0] = X86_64_SSE_CLASS; |
| 2364 | classes[1] = X86_64_SSEUP_CLASS; |
| 2365 | return 2; |
| 2366 | case E_SCmode: |
| 2367 | classes[0] = X86_64_SSE_CLASS; |
| 2368 | if (!(bit_offset % 64)) |
| 2369 | return 1; |
| 2370 | else |
| 2371 | { |
| 2372 | static bool warned; |
| 2373 | |
| 2374 | if (!warned && warn_psabiglobal_options.x_warn_psabi) |
| 2375 | { |
| 2376 | warned = true; |
| 2377 | inform (input_location, |
| 2378 | "the ABI of passing structure with %<complex float%>" |
| 2379 | " member has changed in GCC 4.4"); |
| 2380 | } |
| 2381 | classes[1] = X86_64_SSESF_CLASS; |
| 2382 | return 2; |
| 2383 | } |
| 2384 | case E_DCmode: |
| 2385 | classes[0] = X86_64_SSEDF_CLASS; |
| 2386 | classes[1] = X86_64_SSEDF_CLASS; |
| 2387 | return 2; |
| 2388 | case E_XCmode: |
| 2389 | classes[0] = X86_64_COMPLEX_X87_CLASS; |
| 2390 | return 1; |
| 2391 | case E_TCmode: |
| 2392 | /* This modes is larger than 16 bytes. */ |
| 2393 | return 0; |
| 2394 | case E_V8SFmode: |
| 2395 | case E_V8SImode: |
| 2396 | case E_V32QImode: |
| 2397 | case E_V16HImode: |
| 2398 | case E_V4DFmode: |
| 2399 | case E_V4DImode: |
| 2400 | classes[0] = X86_64_SSE_CLASS; |
| 2401 | classes[1] = X86_64_SSEUP_CLASS; |
| 2402 | classes[2] = X86_64_SSEUP_CLASS; |
| 2403 | classes[3] = X86_64_SSEUP_CLASS; |
| 2404 | return 4; |
| 2405 | case E_V8DFmode: |
| 2406 | case E_V16SFmode: |
| 2407 | case E_V8DImode: |
| 2408 | case E_V16SImode: |
| 2409 | case E_V32HImode: |
| 2410 | case E_V64QImode: |
| 2411 | classes[0] = X86_64_SSE_CLASS; |
| 2412 | classes[1] = X86_64_SSEUP_CLASS; |
| 2413 | classes[2] = X86_64_SSEUP_CLASS; |
| 2414 | classes[3] = X86_64_SSEUP_CLASS; |
| 2415 | classes[4] = X86_64_SSEUP_CLASS; |
| 2416 | classes[5] = X86_64_SSEUP_CLASS; |
| 2417 | classes[6] = X86_64_SSEUP_CLASS; |
| 2418 | classes[7] = X86_64_SSEUP_CLASS; |
| 2419 | return 8; |
| 2420 | case E_V4SFmode: |
| 2421 | case E_V4SImode: |
| 2422 | case E_V16QImode: |
| 2423 | case E_V8HImode: |
| 2424 | case E_V2DFmode: |
| 2425 | case E_V2DImode: |
| 2426 | classes[0] = X86_64_SSE_CLASS; |
| 2427 | classes[1] = X86_64_SSEUP_CLASS; |
| 2428 | return 2; |
| 2429 | case E_V1TImode: |
| 2430 | case E_V1DImode: |
| 2431 | case E_V2SFmode: |
| 2432 | case E_V2SImode: |
| 2433 | case E_V4HImode: |
| 2434 | case E_V8QImode: |
| 2435 | classes[0] = X86_64_SSE_CLASS; |
| 2436 | return 1; |
| 2437 | case E_BLKmode: |
| 2438 | case E_VOIDmode: |
| 2439 | return 0; |
| 2440 | default: |
| 2441 | gcc_assert (VECTOR_MODE_P (mode))((void)(!((((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2441, __FUNCTION__), 0 : 0)); |
| 2442 | |
| 2443 | if (bytes > 16) |
| 2444 | return 0; |
| 2445 | |
| 2446 | gcc_assert (GET_MODE_CLASS (GET_MODE_INNER (mode)) == MODE_INT)((void)(!(((enum mode_class) mode_class[(mode_to_inner (mode) )]) == MODE_INT) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2446, __FUNCTION__), 0 : 0)); |
| 2447 | |
| 2448 | if (bit_offset + GET_MODE_BITSIZE (mode)((unsigned short) mode_to_bits (mode).coeffs[0]) <= 32) |
| 2449 | classes[0] = X86_64_INTEGERSI_CLASS; |
| 2450 | else |
| 2451 | classes[0] = X86_64_INTEGER_CLASS; |
| 2452 | classes[1] = X86_64_INTEGER_CLASS; |
| 2453 | return 1 + (bytes > 8); |
| 2454 | } |
| 2455 | } |
| 2456 | |
| 2457 | /* Examine the argument and return set number of register required in each |
| 2458 | class. Return true iff parameter should be passed in memory. */ |
| 2459 | |
| 2460 | static bool |
| 2461 | examine_argument (machine_mode mode, const_tree type, int in_return, |
| 2462 | int *int_nregs, int *sse_nregs) |
| 2463 | { |
| 2464 | enum x86_64_reg_class regclass[MAX_CLASSES8]; |
| 2465 | int n = classify_argument (mode, type, regclass, 0); |
| 2466 | |
| 2467 | *int_nregs = 0; |
| 2468 | *sse_nregs = 0; |
| 2469 | |
| 2470 | if (!n) |
| 2471 | return true; |
| 2472 | for (n--; n >= 0; n--) |
| 2473 | switch (regclass[n]) |
| 2474 | { |
| 2475 | case X86_64_INTEGER_CLASS: |
| 2476 | case X86_64_INTEGERSI_CLASS: |
| 2477 | (*int_nregs)++; |
| 2478 | break; |
| 2479 | case X86_64_SSE_CLASS: |
| 2480 | case X86_64_SSESF_CLASS: |
| 2481 | case X86_64_SSEDF_CLASS: |
| 2482 | (*sse_nregs)++; |
| 2483 | break; |
| 2484 | case X86_64_NO_CLASS: |
| 2485 | case X86_64_SSEUP_CLASS: |
| 2486 | break; |
| 2487 | case X86_64_X87_CLASS: |
| 2488 | case X86_64_X87UP_CLASS: |
| 2489 | case X86_64_COMPLEX_X87_CLASS: |
| 2490 | if (!in_return) |
| 2491 | return true; |
| 2492 | break; |
| 2493 | case X86_64_MEMORY_CLASS: |
| 2494 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2494, __FUNCTION__)); |
| 2495 | } |
| 2496 | |
| 2497 | return false; |
| 2498 | } |
| 2499 | |
| 2500 | /* Construct container for the argument used by GCC interface. See |
| 2501 | FUNCTION_ARG for the detailed description. */ |
| 2502 | |
| 2503 | static rtx |
| 2504 | construct_container (machine_mode mode, machine_mode orig_mode, |
| 2505 | const_tree type, int in_return, int nintregs, int nsseregs, |
| 2506 | const int *intreg, int sse_regno) |
| 2507 | { |
| 2508 | /* The following variables hold the static issued_error state. */ |
| 2509 | static bool issued_sse_arg_error; |
| 2510 | static bool issued_sse_ret_error; |
| 2511 | static bool issued_x87_ret_error; |
| 2512 | |
| 2513 | machine_mode tmpmode; |
| 2514 | int bytes |
| 2515 | = mode == BLKmode((void) 0, E_BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]); |
| 2516 | enum x86_64_reg_class regclass[MAX_CLASSES8]; |
| 2517 | int n; |
| 2518 | int i; |
| 2519 | int nexps = 0; |
| 2520 | int needed_sseregs, needed_intregs; |
| 2521 | rtx exp[MAX_CLASSES8]; |
| 2522 | rtx ret; |
| 2523 | |
| 2524 | n = classify_argument (mode, type, regclass, 0); |
| 2525 | if (!n) |
| 2526 | return NULL__null; |
| 2527 | if (examine_argument (mode, type, in_return, &needed_intregs, |
| 2528 | &needed_sseregs)) |
| 2529 | return NULL__null; |
| 2530 | if (needed_intregs > nintregs || needed_sseregs > nsseregs) |
| 2531 | return NULL__null; |
| 2532 | |
| 2533 | /* We allowed the user to turn off SSE for kernel mode. Don't crash if |
| 2534 | some less clueful developer tries to use floating-point anyway. */ |
| 2535 | if (needed_sseregs && !TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 2536 | { |
| 2537 | if (in_return) |
| 2538 | { |
| 2539 | if (!issued_sse_ret_error) |
| 2540 | { |
| 2541 | error ("SSE register return with SSE disabled"); |
| 2542 | issued_sse_ret_error = true; |
| 2543 | } |
| 2544 | } |
| 2545 | else if (!issued_sse_arg_error) |
| 2546 | { |
| 2547 | error ("SSE register argument with SSE disabled"); |
| 2548 | issued_sse_arg_error = true; |
| 2549 | } |
| 2550 | return NULL__null; |
| 2551 | } |
| 2552 | |
| 2553 | /* Likewise, error if the ABI requires us to return values in the |
| 2554 | x87 registers and the user specified -mno-80387. */ |
| 2555 | if (!TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0)) && in_return) |
| 2556 | for (i = 0; i < n; i++) |
| 2557 | if (regclass[i] == X86_64_X87_CLASS |
| 2558 | || regclass[i] == X86_64_X87UP_CLASS |
| 2559 | || regclass[i] == X86_64_COMPLEX_X87_CLASS) |
| 2560 | { |
| 2561 | if (!issued_x87_ret_error) |
| 2562 | { |
| 2563 | error ("x87 register return with x87 disabled"); |
| 2564 | issued_x87_ret_error = true; |
| 2565 | } |
| 2566 | return NULL__null; |
| 2567 | } |
| 2568 | |
| 2569 | /* First construct simple cases. Avoid SCmode, since we want to use |
| 2570 | single register to pass this type. */ |
| 2571 | if (n == 1 && mode != SCmode(complex_mode ((complex_mode::from_int) E_SCmode))) |
| 2572 | switch (regclass[0]) |
| 2573 | { |
| 2574 | case X86_64_INTEGER_CLASS: |
| 2575 | case X86_64_INTEGERSI_CLASS: |
| 2576 | return gen_rtx_REG (mode, intreg[0]); |
| 2577 | case X86_64_SSE_CLASS: |
| 2578 | case X86_64_SSESF_CLASS: |
| 2579 | case X86_64_SSEDF_CLASS: |
| 2580 | if (mode != BLKmode((void) 0, E_BLKmode)) |
| 2581 | return gen_reg_or_parallel (mode, orig_mode, |
| 2582 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)); |
| 2583 | break; |
| 2584 | case X86_64_X87_CLASS: |
| 2585 | case X86_64_COMPLEX_X87_CLASS: |
| 2586 | return gen_rtx_REG (mode, FIRST_STACK_REG8); |
| 2587 | case X86_64_NO_CLASS: |
| 2588 | /* Zero sized array, struct or class. */ |
| 2589 | return NULL__null; |
| 2590 | default: |
| 2591 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2591, __FUNCTION__)); |
| 2592 | } |
| 2593 | if (n == 2 |
| 2594 | && regclass[0] == X86_64_SSE_CLASS |
| 2595 | && regclass[1] == X86_64_SSEUP_CLASS |
| 2596 | && mode != BLKmode((void) 0, E_BLKmode)) |
| 2597 | return gen_reg_or_parallel (mode, orig_mode, |
| 2598 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)); |
| 2599 | if (n == 4 |
| 2600 | && regclass[0] == X86_64_SSE_CLASS |
| 2601 | && regclass[1] == X86_64_SSEUP_CLASS |
| 2602 | && regclass[2] == X86_64_SSEUP_CLASS |
| 2603 | && regclass[3] == X86_64_SSEUP_CLASS |
| 2604 | && mode != BLKmode((void) 0, E_BLKmode)) |
| 2605 | return gen_reg_or_parallel (mode, orig_mode, |
| 2606 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)); |
| 2607 | if (n == 8 |
| 2608 | && regclass[0] == X86_64_SSE_CLASS |
| 2609 | && regclass[1] == X86_64_SSEUP_CLASS |
| 2610 | && regclass[2] == X86_64_SSEUP_CLASS |
| 2611 | && regclass[3] == X86_64_SSEUP_CLASS |
| 2612 | && regclass[4] == X86_64_SSEUP_CLASS |
| 2613 | && regclass[5] == X86_64_SSEUP_CLASS |
| 2614 | && regclass[6] == X86_64_SSEUP_CLASS |
| 2615 | && regclass[7] == X86_64_SSEUP_CLASS |
| 2616 | && mode != BLKmode((void) 0, E_BLKmode)) |
| 2617 | return gen_reg_or_parallel (mode, orig_mode, |
| 2618 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)); |
| 2619 | if (n == 2 |
| 2620 | && regclass[0] == X86_64_X87_CLASS |
| 2621 | && regclass[1] == X86_64_X87UP_CLASS) |
| 2622 | return gen_rtx_REG (XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)), FIRST_STACK_REG8); |
| 2623 | |
| 2624 | if (n == 2 |
| 2625 | && regclass[0] == X86_64_INTEGER_CLASS |
| 2626 | && regclass[1] == X86_64_INTEGER_CLASS |
| 2627 | && (mode == CDImode(complex_mode ((complex_mode::from_int) E_CDImode)) || mode == TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode)) || mode == BLKmode((void) 0, E_BLKmode)) |
| 2628 | && intreg[0] + 1 == intreg[1]) |
| 2629 | { |
| 2630 | if (mode == BLKmode((void) 0, E_BLKmode)) |
| 2631 | { |
| 2632 | /* Use TImode for BLKmode values in 2 integer registers. */ |
| 2633 | exp[0] = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), |
| 2634 | gen_rtx_REG (TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode)), intreg[0]), |
| 2635 | GEN_INT (0)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (0))); |
| 2636 | ret = gen_rtx_PARALLEL (mode, rtvec_alloc (1))gen_rtx_fmt_E_stat ((PARALLEL), ((mode)), ((rtvec_alloc (1))) ); |
| 2637 | XVECEXP (ret, 0, 0)(((((ret)->u.fld[0]).rt_rtvec))->elem[0]) = exp[0]; |
| 2638 | return ret; |
| 2639 | } |
| 2640 | else |
| 2641 | return gen_rtx_REG (mode, intreg[0]); |
| 2642 | } |
| 2643 | |
| 2644 | /* Otherwise figure out the entries of the PARALLEL. */ |
| 2645 | for (i = 0; i < n; i++) |
| 2646 | { |
| 2647 | int pos; |
| 2648 | |
| 2649 | switch (regclass[i]) |
| 2650 | { |
| 2651 | case X86_64_NO_CLASS: |
| 2652 | break; |
| 2653 | case X86_64_INTEGER_CLASS: |
| 2654 | case X86_64_INTEGERSI_CLASS: |
| 2655 | /* Merge TImodes on aligned occasions here too. */ |
| 2656 | if (i * 8 + 8 > bytes) |
| 2657 | { |
| 2658 | unsigned int tmpbits = (bytes - i * 8) * BITS_PER_UNIT(8); |
| 2659 | if (!int_mode_for_size (tmpbits, 0).exists (&tmpmode)) |
| 2660 | /* We've requested 24 bytes we |
| 2661 | don't have mode for. Use DImode. */ |
| 2662 | tmpmode = DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)); |
| 2663 | } |
| 2664 | else if (regclass[i] == X86_64_INTEGERSI_CLASS) |
| 2665 | tmpmode = SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode)); |
| 2666 | else |
| 2667 | tmpmode = DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)); |
| 2668 | exp [nexps++] |
| 2669 | = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), |
| 2670 | gen_rtx_REG (tmpmode, *intreg), |
| 2671 | GEN_INT (i*8)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (i*8))); |
| 2672 | intreg++; |
| 2673 | break; |
| 2674 | case X86_64_SSESF_CLASS: |
| 2675 | exp [nexps++] |
| 2676 | = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), |
| 2677 | gen_rtx_REG (SFmode(scalar_float_mode ((scalar_float_mode::from_int) E_SFmode)), |
| 2678 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)), |
| 2679 | GEN_INT (i*8)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (i*8))); |
| 2680 | sse_regno++; |
| 2681 | break; |
| 2682 | case X86_64_SSEDF_CLASS: |
| 2683 | exp [nexps++] |
| 2684 | = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), |
| 2685 | gen_rtx_REG (DFmode(scalar_float_mode ((scalar_float_mode::from_int) E_DFmode)), |
| 2686 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)), |
| 2687 | GEN_INT (i*8)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (i*8))); |
| 2688 | sse_regno++; |
| 2689 | break; |
| 2690 | case X86_64_SSE_CLASS: |
| 2691 | pos = i; |
| 2692 | switch (n) |
| 2693 | { |
| 2694 | case 1: |
| 2695 | tmpmode = DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)); |
| 2696 | break; |
| 2697 | case 2: |
| 2698 | if (i == 0 && regclass[1] == X86_64_SSEUP_CLASS) |
| 2699 | { |
| 2700 | tmpmode = TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode)); |
| 2701 | i++; |
| 2702 | } |
| 2703 | else |
| 2704 | tmpmode = DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)); |
| 2705 | break; |
| 2706 | case 4: |
| 2707 | gcc_assert (i == 0((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2710, __FUNCTION__), 0 : 0)) |
| 2708 | && regclass[1] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2710, __FUNCTION__), 0 : 0)) |
| 2709 | && regclass[2] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2710, __FUNCTION__), 0 : 0)) |
| 2710 | && regclass[3] == X86_64_SSEUP_CLASS)((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2710, __FUNCTION__), 0 : 0)); |
| 2711 | tmpmode = OImode(scalar_int_mode ((scalar_int_mode::from_int) E_OImode)); |
| 2712 | i += 3; |
| 2713 | break; |
| 2714 | case 8: |
| 2715 | gcc_assert (i == 0((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2716 | && regclass[1] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2717 | && regclass[2] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2718 | && regclass[3] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2719 | && regclass[4] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2720 | && regclass[5] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2721 | && regclass[6] == X86_64_SSEUP_CLASS((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)) |
| 2722 | && regclass[7] == X86_64_SSEUP_CLASS)((void)(!(i == 0 && regclass[1] == X86_64_SSEUP_CLASS && regclass[2] == X86_64_SSEUP_CLASS && regclass [3] == X86_64_SSEUP_CLASS && regclass[4] == X86_64_SSEUP_CLASS && regclass[5] == X86_64_SSEUP_CLASS && regclass [6] == X86_64_SSEUP_CLASS && regclass[7] == X86_64_SSEUP_CLASS ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2722, __FUNCTION__), 0 : 0)); |
| 2723 | tmpmode = XImode(scalar_int_mode ((scalar_int_mode::from_int) E_XImode)); |
| 2724 | i += 7; |
| 2725 | break; |
| 2726 | default: |
| 2727 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2727, __FUNCTION__)); |
| 2728 | } |
| 2729 | exp [nexps++] |
| 2730 | = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), |
| 2731 | gen_rtx_REG (tmpmode, |
| 2732 | GET_SSE_REGNO (sse_regno)((sse_regno) < 8 ? 20 + (sse_regno) : (sse_regno) < 16 ? 44 + (sse_regno) - 8 : 52 + (sse_regno) - 16)), |
| 2733 | GEN_INT (pos*8)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (pos*8))); |
| 2734 | sse_regno++; |
| 2735 | break; |
| 2736 | default: |
| 2737 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2737, __FUNCTION__)); |
| 2738 | } |
| 2739 | } |
| 2740 | |
| 2741 | /* Empty aligned struct, union or class. */ |
| 2742 | if (nexps == 0) |
| 2743 | return NULL__null; |
| 2744 | |
| 2745 | ret = gen_rtx_PARALLEL (mode, rtvec_alloc (nexps))gen_rtx_fmt_E_stat ((PARALLEL), ((mode)), ((rtvec_alloc (nexps ))) ); |
| 2746 | for (i = 0; i < nexps; i++) |
| 2747 | XVECEXP (ret, 0, i)(((((ret)->u.fld[0]).rt_rtvec))->elem[i]) = exp [i]; |
| 2748 | return ret; |
| 2749 | } |
| 2750 | |
| 2751 | /* Update the data in CUM to advance over an argument of mode MODE |
| 2752 | and data type TYPE. (TYPE is null for libcalls where that information |
| 2753 | may not be available.) |
| 2754 | |
| 2755 | Return a number of integer regsiters advanced over. */ |
| 2756 | |
| 2757 | static int |
| 2758 | function_arg_advance_32 (CUMULATIVE_ARGS *cum, machine_mode mode, |
| 2759 | const_tree type, HOST_WIDE_INTlong bytes, |
| 2760 | HOST_WIDE_INTlong words) |
| 2761 | { |
| 2762 | int res = 0; |
| 2763 | bool error_p = false; |
| 2764 | |
| 2765 | if (TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 2766 | { |
| 2767 | /* Intel MCU psABI passes scalars and aggregates no larger than 8 |
| 2768 | bytes in registers. */ |
| 2769 | if (!VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && bytes <= 8) |
| 2770 | goto pass_in_reg; |
| 2771 | return res; |
| 2772 | } |
| 2773 | |
| 2774 | switch (mode) |
| 2775 | { |
| 2776 | default: |
| 2777 | break; |
| 2778 | |
| 2779 | case E_BLKmode: |
| 2780 | if (bytes < 0) |
| 2781 | break; |
| 2782 | /* FALLTHRU */ |
| 2783 | |
| 2784 | case E_DImode: |
| 2785 | case E_SImode: |
| 2786 | case E_HImode: |
| 2787 | case E_QImode: |
| 2788 | pass_in_reg: |
| 2789 | cum->words += words; |
| 2790 | cum->nregs -= words; |
| 2791 | cum->regno += words; |
| 2792 | if (cum->nregs >= 0) |
| 2793 | res = words; |
| 2794 | if (cum->nregs <= 0) |
| 2795 | { |
| 2796 | cum->nregs = 0; |
| 2797 | cfun(cfun + 0)->machine->arg_reg_available = false; |
| 2798 | cum->regno = 0; |
| 2799 | } |
| 2800 | break; |
| 2801 | |
| 2802 | case E_OImode: |
| 2803 | /* OImode shouldn't be used directly. */ |
| 2804 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2804, __FUNCTION__)); |
| 2805 | |
| 2806 | case E_DFmode: |
| 2807 | if (cum->float_in_sse == -1) |
| 2808 | error_p = true; |
| 2809 | if (cum->float_in_sse < 2) |
| 2810 | break; |
| 2811 | /* FALLTHRU */ |
| 2812 | case E_SFmode: |
| 2813 | if (cum->float_in_sse == -1) |
| 2814 | error_p = true; |
| 2815 | if (cum->float_in_sse < 1) |
| 2816 | break; |
| 2817 | /* FALLTHRU */ |
| 2818 | |
| 2819 | case E_V8SFmode: |
| 2820 | case E_V8SImode: |
| 2821 | case E_V64QImode: |
| 2822 | case E_V32HImode: |
| 2823 | case E_V16SImode: |
| 2824 | case E_V8DImode: |
| 2825 | case E_V16SFmode: |
| 2826 | case E_V8DFmode: |
| 2827 | case E_V32QImode: |
| 2828 | case E_V16HImode: |
| 2829 | case E_V4DFmode: |
| 2830 | case E_V4DImode: |
| 2831 | case E_TImode: |
| 2832 | case E_V16QImode: |
| 2833 | case E_V8HImode: |
| 2834 | case E_V4SImode: |
| 2835 | case E_V2DImode: |
| 2836 | case E_V4SFmode: |
| 2837 | case E_V2DFmode: |
| 2838 | if (!type || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 2839 | { |
| 2840 | cum->sse_words += words; |
| 2841 | cum->sse_nregs -= 1; |
| 2842 | cum->sse_regno += 1; |
| 2843 | if (cum->sse_nregs <= 0) |
| 2844 | { |
| 2845 | cum->sse_nregs = 0; |
| 2846 | cum->sse_regno = 0; |
| 2847 | } |
| 2848 | } |
| 2849 | break; |
| 2850 | |
| 2851 | case E_V8QImode: |
| 2852 | case E_V4HImode: |
| 2853 | case E_V2SImode: |
| 2854 | case E_V2SFmode: |
| 2855 | case E_V1TImode: |
| 2856 | case E_V1DImode: |
| 2857 | if (!type || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 2858 | { |
| 2859 | cum->mmx_words += words; |
| 2860 | cum->mmx_nregs -= 1; |
| 2861 | cum->mmx_regno += 1; |
| 2862 | if (cum->mmx_nregs <= 0) |
| 2863 | { |
| 2864 | cum->mmx_nregs = 0; |
| 2865 | cum->mmx_regno = 0; |
| 2866 | } |
| 2867 | } |
| 2868 | break; |
| 2869 | } |
| 2870 | if (error_p) |
| 2871 | { |
| 2872 | cum->float_in_sse = 0; |
| 2873 | error ("calling %qD with SSE calling convention without " |
| 2874 | "SSE/SSE2 enabled", cum->decl); |
| 2875 | sorry ("this is a GCC bug that can be worked around by adding " |
| 2876 | "attribute used to function called"); |
| 2877 | } |
| 2878 | |
| 2879 | return res; |
| 2880 | } |
| 2881 | |
| 2882 | static int |
| 2883 | function_arg_advance_64 (CUMULATIVE_ARGS *cum, machine_mode mode, |
| 2884 | const_tree type, HOST_WIDE_INTlong words, bool named) |
| 2885 | { |
| 2886 | int int_nregs, sse_nregs; |
| 2887 | |
| 2888 | /* Unnamed 512 and 256bit vector mode parameters are passed on stack. */ |
| 2889 | if (!named && (VALID_AVX512F_REG_MODE (mode)((mode) == ((void) 0, E_V8DImode) || (mode) == ((void) 0, E_V8DFmode ) || (mode) == ((void) 0, E_V64QImode) || (mode) == ((void) 0 , E_V16SImode) || (mode) == ((void) 0, E_V16SFmode) || (mode) == ((void) 0, E_V32HImode) || (mode) == ((void) 0, E_V4TImode )) |
| 2890 | || VALID_AVX256_REG_MODE (mode)((mode) == ((void) 0, E_V32QImode) || (mode) == ((void) 0, E_V16HImode ) || (mode) == ((void) 0, E_V8SImode) || (mode) == ((void) 0, E_V4DImode) || (mode) == ((void) 0, E_V2TImode) || (mode) == ((void) 0, E_V8SFmode) || (mode) == ((void) 0, E_V4DFmode)))) |
| 2891 | return 0; |
| 2892 | |
| 2893 | if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs) |
| 2894 | && sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs) |
| 2895 | { |
| 2896 | cum->nregs -= int_nregs; |
| 2897 | cum->sse_nregs -= sse_nregs; |
| 2898 | cum->regno += int_nregs; |
| 2899 | cum->sse_regno += sse_nregs; |
| 2900 | return int_nregs; |
| 2901 | } |
| 2902 | else |
| 2903 | { |
| 2904 | int align = ix86_function_arg_boundary (mode, type) / BITS_PER_WORD((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 2905 | cum->words = ROUND_UP (cum->words, align)(((cum->words) + (align) - 1) & ~((align) - 1)); |
| 2906 | cum->words += words; |
| 2907 | return 0; |
| 2908 | } |
| 2909 | } |
| 2910 | |
| 2911 | static int |
| 2912 | function_arg_advance_ms_64 (CUMULATIVE_ARGS *cum, HOST_WIDE_INTlong bytes, |
| 2913 | HOST_WIDE_INTlong words) |
| 2914 | { |
| 2915 | /* Otherwise, this should be passed indirect. */ |
| 2916 | gcc_assert (bytes == 1 || bytes == 2 || bytes == 4 || bytes == 8)((void)(!(bytes == 1 || bytes == 2 || bytes == 4 || bytes == 8 ) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 2916, __FUNCTION__), 0 : 0)); |
| 2917 | |
| 2918 | cum->words += words; |
| 2919 | if (cum->nregs > 0) |
| 2920 | { |
| 2921 | cum->nregs -= 1; |
| 2922 | cum->regno += 1; |
| 2923 | return 1; |
| 2924 | } |
| 2925 | return 0; |
| 2926 | } |
| 2927 | |
| 2928 | /* Update the data in CUM to advance over argument ARG. */ |
| 2929 | |
| 2930 | static void |
| 2931 | ix86_function_arg_advance (cumulative_args_t cum_v, |
| 2932 | const function_arg_info &arg) |
| 2933 | { |
| 2934 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
| 2935 | machine_mode mode = arg.mode; |
| 2936 | HOST_WIDE_INTlong bytes, words; |
| 2937 | int nregs; |
| 2938 | |
| 2939 | /* The argument of interrupt handler is a special case and is |
| 2940 | handled in ix86_function_arg. */ |
| 2941 | if (!cum->caller && cfun(cfun + 0)->machine->func_type != TYPE_NORMAL) |
| 2942 | return; |
| 2943 | |
| 2944 | bytes = arg.promoted_size_in_bytes (); |
| 2945 | words = CEIL (bytes, UNITS_PER_WORD)(((bytes) + ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)) - 1) / ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 2946 | |
| 2947 | if (arg.type) |
| 2948 | mode = type_natural_mode (arg.type, NULL__null, false); |
| 2949 | |
| 2950 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 2951 | { |
| 2952 | enum calling_abi call_abi = cum ? cum->call_abi : ix86_abiglobal_options.x_ix86_abi; |
| 2953 | |
| 2954 | if (call_abi == MS_ABI) |
| 2955 | nregs = function_arg_advance_ms_64 (cum, bytes, words); |
| 2956 | else |
| 2957 | nregs = function_arg_advance_64 (cum, mode, arg.type, words, |
| 2958 | arg.named); |
| 2959 | } |
| 2960 | else |
| 2961 | nregs = function_arg_advance_32 (cum, mode, arg.type, bytes, words); |
| 2962 | |
| 2963 | if (!nregs) |
| 2964 | { |
| 2965 | /* Track if there are outgoing arguments on stack. */ |
| 2966 | if (cum->caller) |
| 2967 | cfun(cfun + 0)->machine->outgoing_args_on_stack = true; |
| 2968 | } |
| 2969 | } |
| 2970 | |
| 2971 | /* Define where to put the arguments to a function. |
| 2972 | Value is zero to push the argument on the stack, |
| 2973 | or a hard register in which to store the argument. |
| 2974 | |
| 2975 | MODE is the argument's machine mode. |
| 2976 | TYPE is the data type of the argument (as a tree). |
| 2977 | This is null for libcalls where that information may |
| 2978 | not be available. |
| 2979 | CUM is a variable of type CUMULATIVE_ARGS which gives info about |
| 2980 | the preceding args and about the function being called. |
| 2981 | NAMED is nonzero if this argument is a named parameter |
| 2982 | (otherwise it is an extra parameter matching an ellipsis). */ |
| 2983 | |
| 2984 | static rtx |
| 2985 | function_arg_32 (CUMULATIVE_ARGS *cum, machine_mode mode, |
| 2986 | machine_mode orig_mode, const_tree type, |
| 2987 | HOST_WIDE_INTlong bytes, HOST_WIDE_INTlong words) |
| 2988 | { |
| 2989 | bool error_p = false; |
| 2990 | |
| 2991 | /* Avoid the AL settings for the Unix64 ABI. */ |
| 2992 | if (mode == VOIDmode((void) 0, E_VOIDmode)) |
| 2993 | return constm1_rtx(const_int_rtx[64 -1]); |
| 2994 | |
| 2995 | if (TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 2996 | { |
| 2997 | /* Intel MCU psABI passes scalars and aggregates no larger than 8 |
| 2998 | bytes in registers. */ |
| 2999 | if (!VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && bytes <= 8) |
| 3000 | goto pass_in_reg; |
| 3001 | return NULL_RTX(rtx) 0; |
| 3002 | } |
| 3003 | |
| 3004 | switch (mode) |
| 3005 | { |
| 3006 | default: |
| 3007 | break; |
| 3008 | |
| 3009 | case E_BLKmode: |
| 3010 | if (bytes < 0) |
| 3011 | break; |
| 3012 | /* FALLTHRU */ |
| 3013 | case E_DImode: |
| 3014 | case E_SImode: |
| 3015 | case E_HImode: |
| 3016 | case E_QImode: |
| 3017 | pass_in_reg: |
| 3018 | if (words <= cum->nregs) |
| 3019 | { |
| 3020 | int regno = cum->regno; |
| 3021 | |
| 3022 | /* Fastcall allocates the first two DWORD (SImode) or |
| 3023 | smaller arguments to ECX and EDX if it isn't an |
| 3024 | aggregate type . */ |
| 3025 | if (cum->fastcall) |
| 3026 | { |
| 3027 | if (mode == BLKmode((void) 0, E_BLKmode) |
| 3028 | || mode == DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)) |
| 3029 | || (type && AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE)))) |
| 3030 | break; |
| 3031 | |
| 3032 | /* ECX not EAX is the first allocated register. */ |
| 3033 | if (regno == AX_REG0) |
| 3034 | regno = CX_REG2; |
| 3035 | } |
| 3036 | return gen_rtx_REG (mode, regno); |
| 3037 | } |
| 3038 | break; |
| 3039 | |
| 3040 | case E_DFmode: |
| 3041 | if (cum->float_in_sse == -1) |
| 3042 | error_p = true; |
| 3043 | if (cum->float_in_sse < 2) |
| 3044 | break; |
| 3045 | /* FALLTHRU */ |
| 3046 | case E_SFmode: |
| 3047 | if (cum->float_in_sse == -1) |
| 3048 | error_p = true; |
| 3049 | if (cum->float_in_sse < 1) |
| 3050 | break; |
| 3051 | /* FALLTHRU */ |
| 3052 | case E_TImode: |
| 3053 | /* In 32bit, we pass TImode in xmm registers. */ |
| 3054 | case E_V16QImode: |
| 3055 | case E_V8HImode: |
| 3056 | case E_V4SImode: |
| 3057 | case E_V2DImode: |
| 3058 | case E_V4SFmode: |
| 3059 | case E_V2DFmode: |
| 3060 | if (!type || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3061 | { |
| 3062 | if (cum->sse_nregs) |
| 3063 | return gen_reg_or_parallel (mode, orig_mode, |
| 3064 | cum->sse_regno + FIRST_SSE_REG20); |
| 3065 | } |
| 3066 | break; |
| 3067 | |
| 3068 | case E_OImode: |
| 3069 | case E_XImode: |
| 3070 | /* OImode and XImode shouldn't be used directly. */ |
| 3071 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3071, __FUNCTION__)); |
| 3072 | |
| 3073 | case E_V64QImode: |
| 3074 | case E_V32HImode: |
| 3075 | case E_V16SImode: |
| 3076 | case E_V8DImode: |
| 3077 | case E_V16SFmode: |
| 3078 | case E_V8DFmode: |
| 3079 | case E_V8SFmode: |
| 3080 | case E_V8SImode: |
| 3081 | case E_V32QImode: |
| 3082 | case E_V16HImode: |
| 3083 | case E_V4DFmode: |
| 3084 | case E_V4DImode: |
| 3085 | if (!type || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3086 | { |
| 3087 | if (cum->sse_nregs) |
| 3088 | return gen_reg_or_parallel (mode, orig_mode, |
| 3089 | cum->sse_regno + FIRST_SSE_REG20); |
| 3090 | } |
| 3091 | break; |
| 3092 | |
| 3093 | case E_V8QImode: |
| 3094 | case E_V4HImode: |
| 3095 | case E_V2SImode: |
| 3096 | case E_V2SFmode: |
| 3097 | case E_V1TImode: |
| 3098 | case E_V1DImode: |
| 3099 | if (!type || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3100 | { |
| 3101 | if (cum->mmx_nregs) |
| 3102 | return gen_reg_or_parallel (mode, orig_mode, |
| 3103 | cum->mmx_regno + FIRST_MMX_REG28); |
| 3104 | } |
| 3105 | break; |
| 3106 | } |
| 3107 | if (error_p) |
| 3108 | { |
| 3109 | cum->float_in_sse = 0; |
| 3110 | error ("calling %qD with SSE calling convention without " |
| 3111 | "SSE/SSE2 enabled", cum->decl); |
| 3112 | sorry ("this is a GCC bug that can be worked around by adding " |
| 3113 | "attribute used to function called"); |
| 3114 | } |
| 3115 | |
| 3116 | return NULL_RTX(rtx) 0; |
| 3117 | } |
| 3118 | |
| 3119 | static rtx |
| 3120 | function_arg_64 (const CUMULATIVE_ARGS *cum, machine_mode mode, |
| 3121 | machine_mode orig_mode, const_tree type, bool named) |
| 3122 | { |
| 3123 | /* Handle a hidden AL argument containing number of registers |
| 3124 | for varargs x86-64 functions. */ |
| 3125 | if (mode == VOIDmode((void) 0, E_VOIDmode)) |
| 3126 | return GEN_INT (cum->maybe_vaarggen_rtx_CONST_INT (((void) 0, E_VOIDmode), (cum->maybe_vaarg ? (cum->sse_nregs < 0 ? 8 : cum->sse_regno) : -1)) |
| 3127 | ? (cum->sse_nregs < 0gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (cum->maybe_vaarg ? (cum->sse_nregs < 0 ? 8 : cum->sse_regno) : -1)) |
| 3128 | ? X86_64_SSE_REGPARM_MAXgen_rtx_CONST_INT (((void) 0, E_VOIDmode), (cum->maybe_vaarg ? (cum->sse_nregs < 0 ? 8 : cum->sse_regno) : -1)) |
| 3129 | : cum->sse_regno)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (cum->maybe_vaarg ? (cum->sse_nregs < 0 ? 8 : cum->sse_regno) : -1)) |
| 3130 | : -1)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (cum->maybe_vaarg ? (cum->sse_nregs < 0 ? 8 : cum->sse_regno) : -1)); |
| 3131 | |
| 3132 | switch (mode) |
| 3133 | { |
| 3134 | default: |
| 3135 | break; |
| 3136 | |
| 3137 | case E_V8SFmode: |
| 3138 | case E_V8SImode: |
| 3139 | case E_V32QImode: |
| 3140 | case E_V16HImode: |
| 3141 | case E_V4DFmode: |
| 3142 | case E_V4DImode: |
| 3143 | case E_V16SFmode: |
| 3144 | case E_V16SImode: |
| 3145 | case E_V64QImode: |
| 3146 | case E_V32HImode: |
| 3147 | case E_V8DFmode: |
| 3148 | case E_V8DImode: |
| 3149 | /* Unnamed 256 and 512bit vector mode parameters are passed on stack. */ |
| 3150 | if (!named) |
| 3151 | return NULL__null; |
| 3152 | break; |
| 3153 | } |
| 3154 | |
| 3155 | return construct_container (mode, orig_mode, type, 0, cum->nregs, |
| 3156 | cum->sse_nregs, |
| 3157 | &x86_64_int_parameter_registers [cum->regno], |
| 3158 | cum->sse_regno); |
| 3159 | } |
| 3160 | |
| 3161 | static rtx |
| 3162 | function_arg_ms_64 (const CUMULATIVE_ARGS *cum, machine_mode mode, |
| 3163 | machine_mode orig_mode, bool named, const_tree type, |
| 3164 | HOST_WIDE_INTlong bytes) |
| 3165 | { |
| 3166 | unsigned int regno; |
| 3167 | |
| 3168 | /* We need to add clobber for MS_ABI->SYSV ABI calls in expand_call. |
| 3169 | We use value of -2 to specify that current function call is MSABI. */ |
| 3170 | if (mode == VOIDmode((void) 0, E_VOIDmode)) |
| 3171 | return GEN_INT (-2)gen_rtx_CONST_INT (((void) 0, E_VOIDmode), (-2)); |
| 3172 | |
| 3173 | /* If we've run out of registers, it goes on the stack. */ |
| 3174 | if (cum->nregs == 0) |
| 3175 | return NULL_RTX(rtx) 0; |
| 3176 | |
| 3177 | regno = x86_64_ms_abi_int_parameter_registers[cum->regno]; |
| 3178 | |
| 3179 | /* Only floating point modes are passed in anything but integer regs. */ |
| 3180 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && (mode == SFmode(scalar_float_mode ((scalar_float_mode::from_int) E_SFmode)) || mode == DFmode(scalar_float_mode ((scalar_float_mode::from_int) E_DFmode)))) |
| 3181 | { |
| 3182 | if (named) |
| 3183 | { |
| 3184 | if (type == NULL_TREE(tree) __null || !AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3185 | regno = cum->regno + FIRST_SSE_REG20; |
| 3186 | } |
| 3187 | else |
| 3188 | { |
| 3189 | rtx t1, t2; |
| 3190 | |
| 3191 | /* Unnamed floating parameters are passed in both the |
| 3192 | SSE and integer registers. */ |
| 3193 | t1 = gen_rtx_REG (mode, cum->regno + FIRST_SSE_REG20); |
| 3194 | t2 = gen_rtx_REG (mode, regno); |
| 3195 | t1 = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), t1, const0_rtx(const_int_rtx[64])); |
| 3196 | t2 = gen_rtx_EXPR_LIST (VOIDmode((void) 0, E_VOIDmode), t2, const0_rtx(const_int_rtx[64])); |
| 3197 | return gen_rtx_PARALLEL (mode, gen_rtvec (2, t1, t2))gen_rtx_fmt_E_stat ((PARALLEL), ((mode)), ((gen_rtvec (2, t1, t2))) ); |
| 3198 | } |
| 3199 | } |
| 3200 | /* Handle aggregated types passed in register. */ |
| 3201 | if (orig_mode == BLKmode((void) 0, E_BLKmode)) |
| 3202 | { |
| 3203 | if (bytes > 0 && bytes <= 8) |
| 3204 | mode = (bytes > 4 ? DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)) : SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode))); |
| 3205 | if (mode == BLKmode((void) 0, E_BLKmode)) |
| 3206 | mode = DImode(scalar_int_mode ((scalar_int_mode::from_int) E_DImode)); |
| 3207 | } |
| 3208 | |
| 3209 | return gen_reg_or_parallel (mode, orig_mode, regno); |
| 3210 | } |
| 3211 | |
| 3212 | /* Return where to put the arguments to a function. |
| 3213 | Return zero to push the argument on the stack, or a hard register in which to store the argument. |
| 3214 | |
| 3215 | ARG describes the argument while CUM gives information about the |
| 3216 | preceding args and about the function being called. */ |
| 3217 | |
| 3218 | static rtx |
| 3219 | ix86_function_arg (cumulative_args_t cum_v, const function_arg_info &arg) |
| 3220 | { |
| 3221 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
| 3222 | machine_mode mode = arg.mode; |
| 3223 | HOST_WIDE_INTlong bytes, words; |
| 3224 | rtx reg; |
| 3225 | |
| 3226 | if (!cum->caller && cfun(cfun + 0)->machine->func_type != TYPE_NORMAL) |
| 3227 | { |
| 3228 | gcc_assert (arg.type != NULL_TREE)((void)(!(arg.type != (tree) __null) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3228, __FUNCTION__), 0 : 0)); |
| 3229 | if (POINTER_TYPE_P (arg.type)(((enum tree_code) (arg.type)->base.code) == POINTER_TYPE || ((enum tree_code) (arg.type)->base.code) == REFERENCE_TYPE )) |
| 3230 | { |
| 3231 | /* This is the pointer argument. */ |
| 3232 | gcc_assert (TYPE_MODE (arg.type) == Pmode)((void)(!(((((enum tree_code) ((tree_class_check ((arg.type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3232, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (arg.type) : (arg.type)->type_common.mode) == (global_options .x_ix86_pmode == PMODE_DI ? (scalar_int_mode ((scalar_int_mode ::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode:: from_int) E_SImode)))) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3232, __FUNCTION__), 0 : 0)); |
| 3233 | /* It is at -WORD(AP) in the current frame in interrupt and |
| 3234 | exception handlers. */ |
| 3235 | reg = plus_constant (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), arg_pointer_rtx((this_target_rtl->x_global_rtl)[GR_ARG_POINTER]), -UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3236 | } |
| 3237 | else |
| 3238 | { |
| 3239 | gcc_assert (cfun->machine->func_type == TYPE_EXCEPTION((void)(!((cfun + 0)->machine->func_type == TYPE_EXCEPTION && ((enum tree_code) (arg.type)->base.code) == INTEGER_TYPE && ((((enum tree_code) ((tree_class_check ((arg.type ), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (arg.type) : (arg.type)->type_common.mode) == word_mode) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__), 0 : 0)) |
| 3240 | && TREE_CODE (arg.type) == INTEGER_TYPE((void)(!((cfun + 0)->machine->func_type == TYPE_EXCEPTION && ((enum tree_code) (arg.type)->base.code) == INTEGER_TYPE && ((((enum tree_code) ((tree_class_check ((arg.type ), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (arg.type) : (arg.type)->type_common.mode) == word_mode) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__), 0 : 0)) |
| 3241 | && TYPE_MODE (arg.type) == word_mode)((void)(!((cfun + 0)->machine->func_type == TYPE_EXCEPTION && ((enum tree_code) (arg.type)->base.code) == INTEGER_TYPE && ((((enum tree_code) ((tree_class_check ((arg.type ), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (arg.type) : (arg.type)->type_common.mode) == word_mode) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3241, __FUNCTION__), 0 : 0)); |
| 3242 | /* The error code is the word-mode integer argument at |
| 3243 | -2 * WORD(AP) in the current frame of the exception |
| 3244 | handler. */ |
| 3245 | reg = gen_rtx_MEM (word_mode, |
| 3246 | plus_constant (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), |
| 3247 | arg_pointer_rtx((this_target_rtl->x_global_rtl)[GR_ARG_POINTER]), |
| 3248 | -2 * UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 3249 | } |
| 3250 | return reg; |
| 3251 | } |
| 3252 | |
| 3253 | bytes = arg.promoted_size_in_bytes (); |
| 3254 | words = CEIL (bytes, UNITS_PER_WORD)(((bytes) + ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)) - 1) / ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 3255 | |
| 3256 | /* To simplify the code below, represent vector types with a vector mode |
| 3257 | even if MMX/SSE are not active. */ |
| 3258 | if (arg.type && TREE_CODE (arg.type)((enum tree_code) (arg.type)->base.code) == VECTOR_TYPE) |
| 3259 | mode = type_natural_mode (arg.type, cum, false); |
| 3260 | |
| 3261 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 3262 | { |
| 3263 | enum calling_abi call_abi = cum ? cum->call_abi : ix86_abiglobal_options.x_ix86_abi; |
| 3264 | |
| 3265 | if (call_abi == MS_ABI) |
| 3266 | reg = function_arg_ms_64 (cum, mode, arg.mode, arg.named, |
| 3267 | arg.type, bytes); |
| 3268 | else |
| 3269 | reg = function_arg_64 (cum, mode, arg.mode, arg.type, arg.named); |
| 3270 | } |
| 3271 | else |
| 3272 | reg = function_arg_32 (cum, mode, arg.mode, arg.type, bytes, words); |
| 3273 | |
| 3274 | /* Track if there are outgoing arguments on stack. */ |
| 3275 | if (reg == NULL_RTX(rtx) 0 && cum->caller) |
| 3276 | cfun(cfun + 0)->machine->outgoing_args_on_stack = true; |
| 3277 | |
| 3278 | return reg; |
| 3279 | } |
| 3280 | |
| 3281 | /* A C expression that indicates when an argument must be passed by |
| 3282 | reference. If nonzero for an argument, a copy of that argument is |
| 3283 | made in memory and a pointer to the argument is passed instead of |
| 3284 | the argument itself. The pointer is passed in whatever way is |
| 3285 | appropriate for passing a pointer to that type. */ |
| 3286 | |
| 3287 | static bool |
| 3288 | ix86_pass_by_reference (cumulative_args_t cum_v, const function_arg_info &arg) |
| 3289 | { |
| 3290 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
| 3291 | |
| 3292 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 3293 | { |
| 3294 | enum calling_abi call_abi = cum ? cum->call_abi : ix86_abiglobal_options.x_ix86_abi; |
| 3295 | |
| 3296 | /* See Windows x64 Software Convention. */ |
| 3297 | if (call_abi == MS_ABI) |
| 3298 | { |
| 3299 | HOST_WIDE_INTlong msize = GET_MODE_SIZE (arg.mode)((unsigned short) mode_to_bytes (arg.mode).coeffs[0]); |
| 3300 | |
| 3301 | if (tree type = arg.type) |
| 3302 | { |
| 3303 | /* Arrays are passed by reference. */ |
| 3304 | if (TREE_CODE (type)((enum tree_code) (type)->base.code) == ARRAY_TYPE) |
| 3305 | return true; |
| 3306 | |
| 3307 | if (RECORD_OR_UNION_TYPE_P (type)(((enum tree_code) (type)->base.code) == RECORD_TYPE || (( enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code) (type)->base.code) == QUAL_UNION_TYPE)) |
| 3308 | { |
| 3309 | /* Structs/unions of sizes other than 8, 16, 32, or 64 bits |
| 3310 | are passed by reference. */ |
| 3311 | msize = int_size_in_bytes (type); |
| 3312 | } |
| 3313 | } |
| 3314 | |
| 3315 | /* __m128 is passed by reference. */ |
| 3316 | return msize != 1 && msize != 2 && msize != 4 && msize != 8; |
| 3317 | } |
| 3318 | else if (arg.type && int_size_in_bytes (arg.type) == -1) |
| 3319 | return true; |
| 3320 | } |
| 3321 | |
| 3322 | return false; |
| 3323 | } |
| 3324 | |
| 3325 | /* Return true when TYPE should be 128bit aligned for 32bit argument |
| 3326 | passing ABI. XXX: This function is obsolete and is only used for |
| 3327 | checking psABI compatibility with previous versions of GCC. */ |
| 3328 | |
| 3329 | static bool |
| 3330 | ix86_compat_aligned_value_p (const_tree type) |
| 3331 | { |
| 3332 | machine_mode mode = TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3332, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 3333 | if (((TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && SSE_REG_MODE_P (mode)((mode) == ((void) 0, E_V1TImode) || (mode) == (scalar_int_mode ((scalar_int_mode::from_int) E_TImode)) || (mode) == ((void) 0, E_V16QImode) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_TFmode)) || (mode) == ((void) 0, E_V8HImode) || (mode) == ((void) 0, E_V2DFmode) || (mode) == ((void) 0, E_V2DImode ) || (mode) == ((void) 0, E_V4SFmode) || (mode) == ((void) 0, E_V4SImode) || (mode) == ((void) 0, E_V32QImode) || (mode) == ((void) 0, E_V16HImode) || (mode) == ((void) 0, E_V8SImode) || (mode) == ((void) 0, E_V4DImode) || (mode) == ((void) 0, E_V8SFmode ) || (mode) == ((void) 0, E_V4DFmode) || (mode) == ((void) 0, E_V2TImode) || (mode) == ((void) 0, E_V8DImode) || (mode) == ((void) 0, E_V64QImode) || (mode) == ((void) 0, E_V16SImode) || (mode) == ((void) 0, E_V32HImode) || (mode) == ((void) 0, E_V8DFmode) || (mode) == ((void) 0, E_V16SFmode))) |
| 3334 | || mode == TDmode(scalar_float_mode ((scalar_float_mode::from_int) E_TDmode)) |
| 3335 | || mode == TFmode(scalar_float_mode ((scalar_float_mode::from_int) E_TFmode)) |
| 3336 | || mode == TCmode(complex_mode ((complex_mode::from_int) E_TCmode))) |
| 3337 | && (!TYPE_USER_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3337, __FUNCTION__))->base.u.bits.user_align) || TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3337, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) > 128)) |
| 3338 | return true; |
| 3339 | if (TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3339, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) < 128) |
| 3340 | return false; |
| 3341 | |
| 3342 | if (AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3343 | { |
| 3344 | /* Walk the aggregates recursively. */ |
| 3345 | switch (TREE_CODE (type)((enum tree_code) (type)->base.code)) |
| 3346 | { |
| 3347 | case RECORD_TYPE: |
| 3348 | case UNION_TYPE: |
| 3349 | case QUAL_UNION_TYPE: |
| 3350 | { |
| 3351 | tree field; |
| 3352 | |
| 3353 | /* Walk all the structure fields. */ |
| 3354 | for (field = TYPE_FIELDS (type)((tree_check3 ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3354, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); field; field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3354, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3354, __FUNCTION__))->common.chain))) |
| 3355 | { |
| 3356 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) == FIELD_DECL |
| 3357 | && ix86_compat_aligned_value_p (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3357, __FUNCTION__))->typed.type))) |
| 3358 | return true; |
| 3359 | } |
| 3360 | break; |
| 3361 | } |
| 3362 | |
| 3363 | case ARRAY_TYPE: |
| 3364 | /* Just for use if some languages passes arrays by value. */ |
| 3365 | if (ix86_compat_aligned_value_p (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3365, __FUNCTION__))->typed.type))) |
| 3366 | return true; |
| 3367 | break; |
| 3368 | |
| 3369 | default: |
| 3370 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3370, __FUNCTION__)); |
| 3371 | } |
| 3372 | } |
| 3373 | return false; |
| 3374 | } |
| 3375 | |
| 3376 | /* Return the alignment boundary for MODE and TYPE with alignment ALIGN. |
| 3377 | XXX: This function is obsolete and is only used for checking psABI |
| 3378 | compatibility with previous versions of GCC. */ |
| 3379 | |
| 3380 | static unsigned int |
| 3381 | ix86_compat_function_arg_boundary (machine_mode mode, |
| 3382 | const_tree type, unsigned int align) |
| 3383 | { |
| 3384 | /* In 32bit, only _Decimal128 and __float128 are aligned to their |
| 3385 | natural boundaries. */ |
| 3386 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && mode != TDmode(scalar_float_mode ((scalar_float_mode::from_int) E_TDmode)) && mode != TFmode(scalar_float_mode ((scalar_float_mode::from_int) E_TFmode))) |
| 3387 | { |
| 3388 | /* i386 ABI defines all arguments to be 4 byte aligned. We have to |
| 3389 | make an exception for SSE modes since these require 128bit |
| 3390 | alignment. |
| 3391 | |
| 3392 | The handling here differs from field_alignment. ICC aligns MMX |
| 3393 | arguments to 4 byte boundaries, while structure fields are aligned |
| 3394 | to 8 byte boundaries. */ |
| 3395 | if (!type) |
| 3396 | { |
| 3397 | if (!(TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && SSE_REG_MODE_P (mode)((mode) == ((void) 0, E_V1TImode) || (mode) == (scalar_int_mode ((scalar_int_mode::from_int) E_TImode)) || (mode) == ((void) 0, E_V16QImode) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_TFmode)) || (mode) == ((void) 0, E_V8HImode) || (mode) == ((void) 0, E_V2DFmode) || (mode) == ((void) 0, E_V2DImode ) || (mode) == ((void) 0, E_V4SFmode) || (mode) == ((void) 0, E_V4SImode) || (mode) == ((void) 0, E_V32QImode) || (mode) == ((void) 0, E_V16HImode) || (mode) == ((void) 0, E_V8SImode) || (mode) == ((void) 0, E_V4DImode) || (mode) == ((void) 0, E_V8SFmode ) || (mode) == ((void) 0, E_V4DFmode) || (mode) == ((void) 0, E_V2TImode) || (mode) == ((void) 0, E_V8DImode) || (mode) == ((void) 0, E_V64QImode) || (mode) == ((void) 0, E_V16SImode) || (mode) == ((void) 0, E_V32HImode) || (mode) == ((void) 0, E_V8DFmode) || (mode) == ((void) 0, E_V16SFmode)))) |
| 3398 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3399 | } |
| 3400 | else |
| 3401 | { |
| 3402 | if (!ix86_compat_aligned_value_p (type)) |
| 3403 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3404 | } |
| 3405 | } |
| 3406 | if (align > BIGGEST_ALIGNMENT(((global_options.x_target_flags & (1U << 12)) != 0 ) ? 32 : (((global_options.x_ix86_isa_flags & (1UL << 15)) != 0) ? 512 : (((global_options.x_ix86_isa_flags & ( 1UL << 8)) != 0) ? 256 : 128)))) |
| 3407 | align = BIGGEST_ALIGNMENT(((global_options.x_target_flags & (1U << 12)) != 0 ) ? 32 : (((global_options.x_ix86_isa_flags & (1UL << 15)) != 0) ? 512 : (((global_options.x_ix86_isa_flags & ( 1UL << 8)) != 0) ? 256 : 128))); |
| 3408 | return align; |
| 3409 | } |
| 3410 | |
| 3411 | /* Return true when TYPE should be 128bit aligned for 32bit argument |
| 3412 | passing ABI. */ |
| 3413 | |
| 3414 | static bool |
| 3415 | ix86_contains_aligned_value_p (const_tree type) |
| 3416 | { |
| 3417 | machine_mode mode = TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3417, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode); |
| 3418 | |
| 3419 | if (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)) || mode == XCmode(complex_mode ((complex_mode::from_int) E_XCmode))) |
| 3420 | return false; |
| 3421 | |
| 3422 | if (TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3422, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) < 128) |
| 3423 | return false; |
| 3424 | |
| 3425 | if (AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE))) |
| 3426 | { |
| 3427 | /* Walk the aggregates recursively. */ |
| 3428 | switch (TREE_CODE (type)((enum tree_code) (type)->base.code)) |
| 3429 | { |
| 3430 | case RECORD_TYPE: |
| 3431 | case UNION_TYPE: |
| 3432 | case QUAL_UNION_TYPE: |
| 3433 | { |
| 3434 | tree field; |
| 3435 | |
| 3436 | /* Walk all the structure fields. */ |
| 3437 | for (field = TYPE_FIELDS (type)((tree_check3 ((type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3437, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); |
| 3438 | field; |
| 3439 | field = DECL_CHAIN (field)(((contains_struct_check (((contains_struct_check ((field), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3439, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3439, __FUNCTION__))->common.chain))) |
| 3440 | { |
| 3441 | if (TREE_CODE (field)((enum tree_code) (field)->base.code) == FIELD_DECL |
| 3442 | && ix86_contains_aligned_value_p (TREE_TYPE (field)((contains_struct_check ((field), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3442, __FUNCTION__))->typed.type))) |
| 3443 | return true; |
| 3444 | } |
| 3445 | break; |
| 3446 | } |
| 3447 | |
| 3448 | case ARRAY_TYPE: |
| 3449 | /* Just for use if some languages passes arrays by value. */ |
| 3450 | if (ix86_contains_aligned_value_p (TREE_TYPE (type)((contains_struct_check ((type), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3450, __FUNCTION__))->typed.type))) |
| 3451 | return true; |
| 3452 | break; |
| 3453 | |
| 3454 | default: |
| 3455 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3455, __FUNCTION__)); |
| 3456 | } |
| 3457 | } |
| 3458 | else |
| 3459 | return TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3459, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) >= 128; |
| 3460 | |
| 3461 | return false; |
| 3462 | } |
| 3463 | |
| 3464 | /* Gives the alignment boundary, in bits, of an argument with the |
| 3465 | specified mode and type. */ |
| 3466 | |
| 3467 | static unsigned int |
| 3468 | ix86_function_arg_boundary (machine_mode mode, const_tree type) |
| 3469 | { |
| 3470 | unsigned int align; |
| 3471 | if (type) |
| 3472 | { |
| 3473 | /* Since the main variant type is used for call, we convert it to |
| 3474 | the main variant type. */ |
| 3475 | type = TYPE_MAIN_VARIANT (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3475, __FUNCTION__))->type_common.main_variant); |
| 3476 | align = TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3476, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0); |
| 3477 | if (TYPE_EMPTY_P (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3477, __FUNCTION__))->type_common.empty_flag)) |
| 3478 | return PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3479 | } |
| 3480 | else |
| 3481 | align = GET_MODE_ALIGNMENT (mode)get_mode_alignment (mode); |
| 3482 | if (align < PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))) |
| 3483 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3484 | else |
| 3485 | { |
| 3486 | static bool warned; |
| 3487 | unsigned int saved_align = align; |
| 3488 | |
| 3489 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 3490 | { |
| 3491 | /* i386 ABI defines XFmode arguments to be 4 byte aligned. */ |
| 3492 | if (!type) |
| 3493 | { |
| 3494 | if (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)) || mode == XCmode(complex_mode ((complex_mode::from_int) E_XCmode))) |
| 3495 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3496 | } |
| 3497 | else if (!ix86_contains_aligned_value_p (type)) |
| 3498 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3499 | |
| 3500 | if (align < 128) |
| 3501 | align = PARM_BOUNDARY((8) * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 3502 | } |
| 3503 | |
| 3504 | if (warn_psabiglobal_options.x_warn_psabi |
| 3505 | && !warned |
| 3506 | && align != ix86_compat_function_arg_boundary (mode, type, |
| 3507 | saved_align)) |
| 3508 | { |
| 3509 | warned = true; |
| 3510 | inform (input_location, |
| 3511 | "the ABI for passing parameters with %d-byte" |
| 3512 | " alignment has changed in GCC 4.6", |
| 3513 | align / BITS_PER_UNIT(8)); |
| 3514 | } |
| 3515 | } |
| 3516 | |
| 3517 | return align; |
| 3518 | } |
| 3519 | |
| 3520 | /* Return true if N is a possible register number of function value. */ |
| 3521 | |
| 3522 | static bool |
| 3523 | ix86_function_value_regno_p (const unsigned int regno) |
| 3524 | { |
| 3525 | switch (regno) |
| 3526 | { |
| 3527 | case AX_REG0: |
| 3528 | return true; |
| 3529 | case DX_REG1: |
| 3530 | return (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) || ix86_cfun_abi () != MS_ABI); |
| 3531 | case DI_REG5: |
| 3532 | case SI_REG4: |
| 3533 | return TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && ix86_cfun_abi () != MS_ABI; |
| 3534 | |
| 3535 | /* Complex values are returned in %st(0)/%st(1) pair. */ |
| 3536 | case ST0_REG8: |
| 3537 | case ST1_REG9: |
| 3538 | /* TODO: The function should depend on current function ABI but |
| 3539 | builtins.c would need updating then. Therefore we use the |
| 3540 | default ABI. */ |
| 3541 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) && ix86_cfun_abi () == MS_ABI) |
| 3542 | return false; |
| 3543 | return TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0)); |
| 3544 | |
| 3545 | /* Complex values are returned in %xmm0/%xmm1 pair. */ |
| 3546 | case XMM0_REG20: |
| 3547 | case XMM1_REG21: |
| 3548 | return TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0); |
| 3549 | |
| 3550 | case MM0_REG28: |
| 3551 | if (TARGET_MACHO0 || TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 3552 | return false; |
| 3553 | return TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0); |
| 3554 | } |
| 3555 | |
| 3556 | return false; |
| 3557 | } |
| 3558 | |
| 3559 | /* Check whether the register REGNO should be zeroed on X86. |
| 3560 | When ALL_SSE_ZEROED is true, all SSE registers have been zeroed |
| 3561 | together, no need to zero it again. |
| 3562 | When NEED_ZERO_MMX is true, MMX registers should be cleared. */ |
| 3563 | |
| 3564 | static bool |
| 3565 | zero_call_used_regno_p (const unsigned int regno, |
| 3566 | bool all_sse_zeroed, |
| 3567 | bool need_zero_mmx) |
| 3568 | { |
| 3569 | return GENERAL_REGNO_P (regno)((((unsigned long) ((regno)) - (unsigned long) (0) <= (unsigned long) (7) - (unsigned long) (0))) || ((unsigned long) ((regno )) - (unsigned long) (36) <= (unsigned long) (43) - (unsigned long) (36))) |
| 3570 | || (!all_sse_zeroed && SSE_REGNO_P (regno)(((unsigned long) ((regno)) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) || ((unsigned long) ((regno )) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) || ((unsigned long) ((regno)) - (unsigned long) ( 52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 3571 | || MASK_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (68) <= (unsigned long) (75) - (unsigned long) (68)) |
| 3572 | || (need_zero_mmx && MMX_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (28) <= (unsigned long) (35) - (unsigned long) (28))); |
| 3573 | } |
| 3574 | |
| 3575 | /* Return the machine_mode that is used to zero register REGNO. */ |
| 3576 | |
| 3577 | static machine_mode |
| 3578 | zero_call_used_regno_mode (const unsigned int regno) |
| 3579 | { |
| 3580 | /* NB: We only need to zero the lower 32 bits for integer registers |
| 3581 | and the lower 128 bits for vector registers since destination are |
| 3582 | zero-extended to the full register width. */ |
| 3583 | if (GENERAL_REGNO_P (regno)((((unsigned long) ((regno)) - (unsigned long) (0) <= (unsigned long) (7) - (unsigned long) (0))) || ((unsigned long) ((regno )) - (unsigned long) (36) <= (unsigned long) (43) - (unsigned long) (36)))) |
| 3584 | return SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode)); |
| 3585 | else if (SSE_REGNO_P (regno)(((unsigned long) ((regno)) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) || ((unsigned long) ((regno )) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) || ((unsigned long) ((regno)) - (unsigned long) ( 52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 3586 | return V4SFmode((void) 0, E_V4SFmode); |
| 3587 | else if (MASK_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (68) <= (unsigned long) (75) - (unsigned long) (68))) |
| 3588 | return HImode(scalar_int_mode ((scalar_int_mode::from_int) E_HImode)); |
| 3589 | else if (MMX_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (28) <= (unsigned long) (35) - (unsigned long) (28))) |
| 3590 | return V4HImode((void) 0, E_V4HImode); |
| 3591 | else |
| 3592 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3592, __FUNCTION__)); |
| 3593 | } |
| 3594 | |
| 3595 | /* Generate a rtx to zero all vector registers together if possible, |
| 3596 | otherwise, return NULL. */ |
| 3597 | |
| 3598 | static rtx |
| 3599 | zero_all_vector_registers (HARD_REG_SET need_zeroed_hardregs) |
| 3600 | { |
| 3601 | if (!TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 )) |
| 3602 | return NULL__null; |
| 3603 | |
| 3604 | for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER76; regno++) |
| 3605 | if ((IN_RANGE (regno, FIRST_SSE_REG, LAST_SSE_REG)((unsigned long) (regno) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) |
| 3606 | || (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 ) |
| 3607 | && (REX_SSE_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) |
| 3608 | || (TARGET_AVX512F((global_options.x_ix86_isa_flags & (1UL << 15)) != 0) && EXT_REX_SSE_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (52) <= (unsigned long) (67) - (unsigned long) (52)))))) |
| 3609 | && !TEST_HARD_REG_BIT (need_zeroed_hardregs, regno)) |
| 3610 | return NULL__null; |
| 3611 | |
| 3612 | return gen_avx_vzeroall (); |
| 3613 | } |
| 3614 | |
| 3615 | /* Generate insns to zero all st registers together. |
| 3616 | Return true when zeroing instructions are generated. |
| 3617 | Assume the number of st registers that are zeroed is num_of_st, |
| 3618 | we will emit the following sequence to zero them together: |
| 3619 | fldz; \ |
| 3620 | fldz; \ |
| 3621 | ... |
| 3622 | fldz; \ |
| 3623 | fstp %%st(0); \ |
| 3624 | fstp %%st(0); \ |
| 3625 | ... |
| 3626 | fstp %%st(0); |
| 3627 | i.e., num_of_st fldz followed by num_of_st fstp to clear the stack |
| 3628 | mark stack slots empty. |
| 3629 | |
| 3630 | How to compute the num_of_st: |
| 3631 | There is no direct mapping from stack registers to hard register |
| 3632 | numbers. If one stack register needs to be cleared, we don't know |
| 3633 | where in the stack the value remains. So, if any stack register |
| 3634 | needs to be cleared, the whole stack should be cleared. However, |
| 3635 | x87 stack registers that hold the return value should be excluded. |
| 3636 | x87 returns in the top (two for complex values) register, so |
| 3637 | num_of_st should be 7/6 when x87 returns, otherwise it will be 8. */ |
| 3638 | |
| 3639 | |
| 3640 | static bool |
| 3641 | zero_all_st_registers (HARD_REG_SET need_zeroed_hardregs) |
| 3642 | { |
| 3643 | |
| 3644 | /* If the FPU is disabled, no need to zero all st registers. */ |
| 3645 | if (! (TARGET_80387((global_options.x_target_flags & (1U << 1)) != 0) || TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0)))) |
| 3646 | return false; |
| 3647 | |
| 3648 | unsigned int num_of_st = 0; |
| 3649 | for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER76; regno++) |
| 3650 | if ((STACK_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (8) <= (unsigned long) (15) - (unsigned long) (8)) || MMX_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (28) <= (unsigned long) (35) - (unsigned long) (28))) |
| 3651 | && TEST_HARD_REG_BIT (need_zeroed_hardregs, regno)) |
| 3652 | { |
| 3653 | num_of_st++; |
| 3654 | break; |
| 3655 | } |
| 3656 | |
| 3657 | if (num_of_st == 0) |
| 3658 | return false; |
| 3659 | |
| 3660 | bool return_with_x87 = false; |
| 3661 | return_with_x87 = (crtl(&x_rtl)->return_rtx |
| 3662 | && (STACK_REG_P (crtl->return_rtx)((((enum rtx_code) ((&x_rtl)->return_rtx)->code) == REG) && ((unsigned long) (((rhs_regno((&x_rtl)-> return_rtx)))) - (unsigned long) (8) <= (unsigned long) (15 ) - (unsigned long) (8))))); |
| 3663 | |
| 3664 | bool complex_return = false; |
| 3665 | complex_return = (crtl(&x_rtl)->return_rtx |
| 3666 | && COMPLEX_MODE_P (GET_MODE (crtl->return_rtx))(((enum mode_class) mode_class[((machine_mode) ((&x_rtl)-> return_rtx)->mode)]) == MODE_COMPLEX_INT || ((enum mode_class ) mode_class[((machine_mode) ((&x_rtl)->return_rtx)-> mode)]) == MODE_COMPLEX_FLOAT)); |
| 3667 | |
| 3668 | if (return_with_x87) |
| 3669 | if (complex_return) |
| 3670 | num_of_st = 6; |
| 3671 | else |
| 3672 | num_of_st = 7; |
| 3673 | else |
| 3674 | num_of_st = 8; |
| 3675 | |
| 3676 | rtx st_reg = gen_rtx_REG (XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)), FIRST_STACK_REG8); |
| 3677 | for (unsigned int i = 0; i < num_of_st; i++) |
| 3678 | emit_insn (gen_rtx_SET (st_reg, CONST0_RTX (XFmode))gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((st_reg )), (((const_tiny_rtx[0][(int) ((scalar_float_mode ((scalar_float_mode ::from_int) E_XFmode)))]))) )); |
| 3679 | |
| 3680 | for (unsigned int i = 0; i < num_of_st; i++) |
| 3681 | { |
| 3682 | rtx insn; |
| 3683 | insn = emit_insn (gen_rtx_SET (st_reg, st_reg)gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((st_reg )), ((st_reg)) )); |
| 3684 | add_reg_note (insn, REG_DEAD, st_reg); |
| 3685 | } |
| 3686 | return true; |
| 3687 | } |
| 3688 | |
| 3689 | |
| 3690 | /* When the routine exit in MMX mode, if any ST register needs |
| 3691 | to be zeroed, we should clear all MMX registers except the |
| 3692 | RET_MMX_REGNO that holds the return value. */ |
| 3693 | static bool |
| 3694 | zero_all_mm_registers (HARD_REG_SET need_zeroed_hardregs, |
| 3695 | unsigned int ret_mmx_regno) |
| 3696 | { |
| 3697 | bool need_zero_all_mm = false; |
| 3698 | for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER76; regno++) |
| 3699 | if (STACK_REGNO_P (regno)((unsigned long) ((regno)) - (unsigned long) (8) <= (unsigned long) (15) - (unsigned long) (8)) |
| 3700 | && TEST_HARD_REG_BIT (need_zeroed_hardregs, regno)) |
| 3701 | { |
| 3702 | need_zero_all_mm = true; |
| 3703 | break; |
| 3704 | } |
| 3705 | |
| 3706 | if (!need_zero_all_mm) |
| 3707 | return false; |
| 3708 | |
| 3709 | rtx zero_mmx = NULL_RTX(rtx) 0; |
| 3710 | machine_mode mode = V4HImode((void) 0, E_V4HImode); |
| 3711 | for (unsigned int regno = FIRST_MMX_REG28; regno <= LAST_MMX_REG35; regno++) |
| 3712 | if (regno != ret_mmx_regno) |
| 3713 | { |
| 3714 | rtx reg = gen_rtx_REG (mode, regno); |
| 3715 | if (zero_mmx == NULL_RTX(rtx) 0) |
| 3716 | { |
| 3717 | zero_mmx = reg; |
| 3718 | emit_insn (gen_rtx_SET (reg, CONST0_RTX (mode))gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((reg)) , (((const_tiny_rtx[0][(int) (mode)]))) )); |
| 3719 | } |
| 3720 | else |
| 3721 | emit_move_insn (reg, zero_mmx); |
| 3722 | } |
| 3723 | return true; |
| 3724 | } |
| 3725 | |
| 3726 | /* TARGET_ZERO_CALL_USED_REGS. */ |
| 3727 | /* Generate a sequence of instructions that zero registers specified by |
| 3728 | NEED_ZEROED_HARDREGS. Return the ZEROED_HARDREGS that are actually |
| 3729 | zeroed. */ |
| 3730 | static HARD_REG_SET |
| 3731 | ix86_zero_call_used_regs (HARD_REG_SET need_zeroed_hardregs) |
| 3732 | { |
| 3733 | HARD_REG_SET zeroed_hardregs; |
| 3734 | bool all_sse_zeroed = false; |
| 3735 | bool all_st_zeroed = false; |
| 3736 | bool all_mm_zeroed = false; |
| 3737 | |
| 3738 | CLEAR_HARD_REG_SET (zeroed_hardregs); |
| 3739 | |
| 3740 | /* first, let's see whether we can zero all vector registers together. */ |
| 3741 | rtx zero_all_vec_insn = zero_all_vector_registers (need_zeroed_hardregs); |
| 3742 | if (zero_all_vec_insn) |
| 3743 | { |
| 3744 | emit_insn (zero_all_vec_insn); |
| 3745 | all_sse_zeroed = true; |
| 3746 | } |
| 3747 | |
| 3748 | /* mm/st registers are shared registers set, we should follow the following |
| 3749 | rules to clear them: |
| 3750 | MMX exit mode x87 exit mode |
| 3751 | -------------|----------------------|--------------- |
| 3752 | uses x87 reg | clear all MMX | clear all x87 |
| 3753 | uses MMX reg | clear individual MMX | clear all x87 |
| 3754 | x87 + MMX | clear all MMX | clear all x87 |
| 3755 | |
| 3756 | first, we should decide which mode (MMX mode or x87 mode) the function |
| 3757 | exit with. */ |
| 3758 | |
| 3759 | bool exit_with_mmx_mode = (crtl(&x_rtl)->return_rtx |
| 3760 | && (MMX_REG_P (crtl->return_rtx)((((enum rtx_code) ((&x_rtl)->return_rtx)->code) == REG) && ((unsigned long) (((rhs_regno((&x_rtl)-> return_rtx)))) - (unsigned long) (28) <= (unsigned long) ( 35) - (unsigned long) (28))))); |
| 3761 | |
| 3762 | if (!exit_with_mmx_mode) |
| 3763 | /* x87 exit mode, we should zero all st registers together. */ |
| 3764 | { |
| 3765 | all_st_zeroed = zero_all_st_registers (need_zeroed_hardregs); |
| 3766 | if (all_st_zeroed) |
| 3767 | SET_HARD_REG_BIT (zeroed_hardregs, FIRST_STACK_REG8); |
| 3768 | } |
| 3769 | else |
| 3770 | /* MMX exit mode, check whether we can zero all mm registers. */ |
| 3771 | { |
| 3772 | unsigned int exit_mmx_regno = REGNO (crtl->return_rtx)(rhs_regno((&x_rtl)->return_rtx)); |
| 3773 | all_mm_zeroed = zero_all_mm_registers (need_zeroed_hardregs, |
| 3774 | exit_mmx_regno); |
| 3775 | if (all_mm_zeroed) |
| 3776 | for (unsigned int regno = FIRST_MMX_REG28; regno <= LAST_MMX_REG35; regno++) |
| 3777 | if (regno != exit_mmx_regno) |
| 3778 | SET_HARD_REG_BIT (zeroed_hardregs, regno); |
| 3779 | } |
| 3780 | |
| 3781 | /* Now, generate instructions to zero all the other registers. */ |
| 3782 | |
| 3783 | rtx zero_gpr = NULL_RTX(rtx) 0; |
| 3784 | rtx zero_vector = NULL_RTX(rtx) 0; |
| 3785 | rtx zero_mask = NULL_RTX(rtx) 0; |
| 3786 | rtx zero_mmx = NULL_RTX(rtx) 0; |
| 3787 | |
| 3788 | for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER76; regno++) |
| 3789 | { |
| 3790 | if (!TEST_HARD_REG_BIT (need_zeroed_hardregs, regno)) |
| 3791 | continue; |
| 3792 | if (!zero_call_used_regno_p (regno, all_sse_zeroed, |
| 3793 | exit_with_mmx_mode && !all_mm_zeroed)) |
| 3794 | continue; |
| 3795 | |
| 3796 | SET_HARD_REG_BIT (zeroed_hardregs, regno); |
| 3797 | |
| 3798 | rtx reg, tmp, zero_rtx; |
| 3799 | machine_mode mode = zero_call_used_regno_mode (regno); |
| 3800 | |
| 3801 | reg = gen_rtx_REG (mode, regno); |
| 3802 | zero_rtx = CONST0_RTX (mode)(const_tiny_rtx[0][(int) (mode)]); |
| 3803 | |
| 3804 | if (mode == SImode(scalar_int_mode ((scalar_int_mode::from_int) E_SImode))) |
| 3805 | if (zero_gpr == NULL_RTX(rtx) 0) |
| 3806 | { |
| 3807 | zero_gpr = reg; |
| 3808 | tmp = gen_rtx_SET (reg, zero_rtx)gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((reg)) , ((zero_rtx)) ); |
| 3809 | if (!TARGET_USE_MOV0ix86_tune_features[X86_TUNE_USE_MOV0] || optimize_insn_for_size_p ()) |
| 3810 | { |
| 3811 | rtx clob = gen_rtx_CLOBBER (VOIDmode,gen_rtx_fmt_e_stat ((CLOBBER), ((((void) 0, E_VOIDmode))), (( gen_rtx_REG (((void) 0, E_CCmode), 17))) ) |
| 3812 | gen_rtx_REG (CCmode,gen_rtx_fmt_e_stat ((CLOBBER), ((((void) 0, E_VOIDmode))), (( gen_rtx_REG (((void) 0, E_CCmode), 17))) ) |
| 3813 | FLAGS_REG))gen_rtx_fmt_e_stat ((CLOBBER), ((((void) 0, E_VOIDmode))), (( gen_rtx_REG (((void) 0, E_CCmode), 17))) ); |
| 3814 | tmp = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2,gen_rtx_fmt_E_stat ((PARALLEL), ((((void) 0, E_VOIDmode))), ( (gen_rtvec (2, tmp, clob))) ) |
| 3815 | tmp,gen_rtx_fmt_E_stat ((PARALLEL), ((((void) 0, E_VOIDmode))), ( (gen_rtvec (2, tmp, clob))) ) |
| 3816 | clob))gen_rtx_fmt_E_stat ((PARALLEL), ((((void) 0, E_VOIDmode))), ( (gen_rtvec (2, tmp, clob))) ); |
| 3817 | } |
| 3818 | emit_insn (tmp); |
| 3819 | } |
| 3820 | else |
| 3821 | emit_move_insn (reg, zero_gpr); |
| 3822 | else if (mode == V4SFmode((void) 0, E_V4SFmode)) |
| 3823 | if (zero_vector == NULL_RTX(rtx) 0) |
| 3824 | { |
| 3825 | zero_vector = reg; |
| 3826 | tmp = gen_rtx_SET (reg, zero_rtx)gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((reg)) , ((zero_rtx)) ); |
| 3827 | emit_insn (tmp); |
| 3828 | } |
| 3829 | else |
| 3830 | emit_move_insn (reg, zero_vector); |
| 3831 | else if (mode == HImode(scalar_int_mode ((scalar_int_mode::from_int) E_HImode))) |
| 3832 | if (zero_mask == NULL_RTX(rtx) 0) |
| 3833 | { |
| 3834 | zero_mask = reg; |
| 3835 | tmp = gen_rtx_SET (reg, zero_rtx)gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((reg)) , ((zero_rtx)) ); |
| 3836 | emit_insn (tmp); |
| 3837 | } |
| 3838 | else |
| 3839 | emit_move_insn (reg, zero_mask); |
| 3840 | else if (mode == V4HImode((void) 0, E_V4HImode)) |
| 3841 | if (zero_mmx == NULL_RTX(rtx) 0) |
| 3842 | { |
| 3843 | zero_mmx = reg; |
| 3844 | tmp = gen_rtx_SET (reg, zero_rtx)gen_rtx_fmt_ee_stat ((SET), (((void) 0, E_VOIDmode)), ((reg)) , ((zero_rtx)) ); |
| 3845 | emit_insn (tmp); |
| 3846 | } |
| 3847 | else |
| 3848 | emit_move_insn (reg, zero_mmx); |
| 3849 | else |
| 3850 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3850, __FUNCTION__)); |
| 3851 | } |
| 3852 | return zeroed_hardregs; |
| 3853 | } |
| 3854 | |
| 3855 | /* Define how to find the value returned by a function. |
| 3856 | VALTYPE is the data type of the value (as a tree). |
| 3857 | If the precise function being called is known, FUNC is its FUNCTION_DECL; |
| 3858 | otherwise, FUNC is 0. */ |
| 3859 | |
| 3860 | static rtx |
| 3861 | function_value_32 (machine_mode orig_mode, machine_mode mode, |
| 3862 | const_tree fntype, const_tree fn) |
| 3863 | { |
| 3864 | unsigned int regno; |
| 3865 | |
| 3866 | /* 8-byte vector modes in %mm0. See ix86_return_in_memory for where |
| 3867 | we normally prevent this case when mmx is not available. However |
| 3868 | some ABIs may require the result to be returned like DImode. */ |
| 3869 | if (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) == 8) |
| 3870 | regno = FIRST_MMX_REG28; |
| 3871 | |
| 3872 | /* 16-byte vector modes in %xmm0. See ix86_return_in_memory for where |
| 3873 | we prevent this case when sse is not available. However some ABIs |
| 3874 | may require the result to be returned like integer TImode. */ |
| 3875 | else if (mode == TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode)) |
| 3876 | || (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) == 16)) |
| 3877 | regno = FIRST_SSE_REG20; |
| 3878 | |
| 3879 | /* 32-byte vector modes in %ymm0. */ |
| 3880 | else if (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) == 32) |
| 3881 | regno = FIRST_SSE_REG20; |
| 3882 | |
| 3883 | /* 64-byte vector modes in %zmm0. */ |
| 3884 | else if (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) && GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) == 64) |
| 3885 | regno = FIRST_SSE_REG20; |
| 3886 | |
| 3887 | /* Floating point return values in %st(0) (unless -mno-fp-ret-in-387). */ |
| 3888 | else if (X87_FLOAT_MODE_P (mode)(((global_options.x_target_flags & (1U << 1)) != 0) && ((mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_SFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_DFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_XFmode)))) && TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0))) |
| 3889 | regno = FIRST_FLOAT_REG8; |
| 3890 | else |
| 3891 | /* Most things go in %eax. */ |
| 3892 | regno = AX_REG0; |
| 3893 | |
| 3894 | /* Override FP return register with %xmm0 for local functions when |
| 3895 | SSE math is enabled or for functions with sseregparm attribute. */ |
| 3896 | if ((fn || fntype) && (mode == SFmode(scalar_float_mode ((scalar_float_mode::from_int) E_SFmode)) || mode == DFmode(scalar_float_mode ((scalar_float_mode::from_int) E_DFmode)))) |
| 3897 | { |
| 3898 | int sse_level = ix86_function_sseregparm (fntype, fn, false); |
| 3899 | if (sse_level == -1) |
| 3900 | { |
| 3901 | error ("calling %qD with SSE calling convention without " |
| 3902 | "SSE/SSE2 enabled", fn); |
| 3903 | sorry ("this is a GCC bug that can be worked around by adding " |
| 3904 | "attribute used to function called"); |
| 3905 | } |
| 3906 | else if ((sse_level >= 1 && mode == SFmode(scalar_float_mode ((scalar_float_mode::from_int) E_SFmode))) |
| 3907 | || (sse_level == 2 && mode == DFmode(scalar_float_mode ((scalar_float_mode::from_int) E_DFmode)))) |
| 3908 | regno = FIRST_SSE_REG20; |
| 3909 | } |
| 3910 | |
| 3911 | /* OImode shouldn't be used directly. */ |
| 3912 | gcc_assert (mode != OImode)((void)(!(mode != (scalar_int_mode ((scalar_int_mode::from_int ) E_OImode))) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 3912, __FUNCTION__), 0 : 0)); |
| 3913 | |
| 3914 | return gen_rtx_REG (orig_mode, regno); |
| 3915 | } |
| 3916 | |
| 3917 | static rtx |
| 3918 | function_value_64 (machine_mode orig_mode, machine_mode mode, |
| 3919 | const_tree valtype) |
| 3920 | { |
| 3921 | rtx ret; |
| 3922 | |
| 3923 | /* Handle libcalls, which don't provide a type node. */ |
| 3924 | if (valtype == NULL__null) |
| 3925 | { |
| 3926 | unsigned int regno; |
| 3927 | |
| 3928 | switch (mode) |
| 3929 | { |
| 3930 | case E_SFmode: |
| 3931 | case E_SCmode: |
| 3932 | case E_DFmode: |
| 3933 | case E_DCmode: |
| 3934 | case E_TFmode: |
| 3935 | case E_SDmode: |
| 3936 | case E_DDmode: |
| 3937 | case E_TDmode: |
| 3938 | regno = FIRST_SSE_REG20; |
| 3939 | break; |
| 3940 | case E_XFmode: |
| 3941 | case E_XCmode: |
| 3942 | regno = FIRST_FLOAT_REG8; |
| 3943 | break; |
| 3944 | case E_TCmode: |
| 3945 | return NULL__null; |
| 3946 | default: |
| 3947 | regno = AX_REG0; |
| 3948 | } |
| 3949 | |
| 3950 | return gen_rtx_REG (mode, regno); |
| 3951 | } |
| 3952 | else if (POINTER_TYPE_P (valtype)(((enum tree_code) (valtype)->base.code) == POINTER_TYPE || ((enum tree_code) (valtype)->base.code) == REFERENCE_TYPE )) |
| 3953 | { |
| 3954 | /* Pointers are always returned in word_mode. */ |
| 3955 | mode = word_mode; |
| 3956 | } |
| 3957 | |
| 3958 | ret = construct_container (mode, orig_mode, valtype, 1, |
| 3959 | X86_64_REGPARM_MAX6, X86_64_SSE_REGPARM_MAX8, |
| 3960 | x86_64_int_return_registers, 0); |
| 3961 | |
| 3962 | /* For zero sized structures, construct_container returns NULL, but we |
| 3963 | need to keep rest of compiler happy by returning meaningful value. */ |
| 3964 | if (!ret) |
| 3965 | ret = gen_rtx_REG (orig_mode, AX_REG0); |
| 3966 | |
| 3967 | return ret; |
| 3968 | } |
| 3969 | |
| 3970 | static rtx |
| 3971 | function_value_ms_32 (machine_mode orig_mode, machine_mode mode, |
| 3972 | const_tree fntype, const_tree fn, const_tree valtype) |
| 3973 | { |
| 3974 | unsigned int regno; |
| 3975 | |
| 3976 | /* Floating point return values in %st(0) |
| 3977 | (unless -mno-fp-ret-in-387 or aggregate type of up to 8 bytes). */ |
| 3978 | if (X87_FLOAT_MODE_P (mode)(((global_options.x_target_flags & (1U << 1)) != 0) && ((mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_SFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_DFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_XFmode)))) && TARGET_FLOAT_RETURNS_IN_80387(((global_options.x_target_flags & (1U << 11)) != 0 ) && ((global_options.x_target_flags & (1U << 1)) != 0) && !((global_options.x_target_flags & ( 1U << 12)) != 0)) |
| 3979 | && (GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) > 8 |
| 3980 | || valtype == NULL_TREE(tree) __null || !AGGREGATE_TYPE_P (valtype)(((enum tree_code) (valtype)->base.code) == ARRAY_TYPE || ( ((enum tree_code) (valtype)->base.code) == RECORD_TYPE || ( (enum tree_code) (valtype)->base.code) == UNION_TYPE || (( enum tree_code) (valtype)->base.code) == QUAL_UNION_TYPE)))) |
| 3981 | { |
| 3982 | regno = FIRST_FLOAT_REG8; |
| 3983 | return gen_rtx_REG (orig_mode, regno); |
| 3984 | } |
| 3985 | else |
| 3986 | return function_value_32(orig_mode, mode, fntype,fn); |
| 3987 | } |
| 3988 | |
| 3989 | static rtx |
| 3990 | function_value_ms_64 (machine_mode orig_mode, machine_mode mode, |
| 3991 | const_tree valtype) |
| 3992 | { |
| 3993 | unsigned int regno = AX_REG0; |
| 3994 | |
| 3995 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 3996 | { |
| 3997 | switch (GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0])) |
| 3998 | { |
| 3999 | case 16: |
| 4000 | if (valtype != NULL_TREE(tree) __null |
| 4001 | && !VECTOR_INTEGER_TYPE_P (valtype)((((enum tree_code) (valtype)->base.code) == VECTOR_TYPE) && ((enum tree_code) (((contains_struct_check ((valtype), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4001, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4002 | && !VECTOR_INTEGER_TYPE_P (valtype)((((enum tree_code) (valtype)->base.code) == VECTOR_TYPE) && ((enum tree_code) (((contains_struct_check ((valtype), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4002, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4003 | && !INTEGRAL_TYPE_P (valtype)(((enum tree_code) (valtype)->base.code) == ENUMERAL_TYPE || ((enum tree_code) (valtype)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (valtype)->base.code) == INTEGER_TYPE) |
| 4004 | && !VECTOR_FLOAT_TYPE_P (valtype)((((enum tree_code) (valtype)->base.code) == VECTOR_TYPE) && ((enum tree_code) (((contains_struct_check ((valtype), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4004, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE )) |
| 4005 | break; |
| 4006 | if ((SCALAR_INT_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_INT || ((enum mode_class ) mode_class[mode]) == MODE_PARTIAL_INT) || VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM)) |
| 4007 | && !COMPLEX_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_COMPLEX_INT || ( (enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT)) |
| 4008 | regno = FIRST_SSE_REG20; |
| 4009 | break; |
| 4010 | case 8: |
| 4011 | case 4: |
| 4012 | if (valtype != NULL_TREE(tree) __null && AGGREGATE_TYPE_P (valtype)(((enum tree_code) (valtype)->base.code) == ARRAY_TYPE || ( ((enum tree_code) (valtype)->base.code) == RECORD_TYPE || ( (enum tree_code) (valtype)->base.code) == UNION_TYPE || (( enum tree_code) (valtype)->base.code) == QUAL_UNION_TYPE))) |
| 4013 | break; |
| 4014 | if (mode == SFmode(scalar_float_mode ((scalar_float_mode::from_int) E_SFmode)) || mode == DFmode(scalar_float_mode ((scalar_float_mode::from_int) E_DFmode))) |
| 4015 | regno = FIRST_SSE_REG20; |
| 4016 | break; |
| 4017 | default: |
| 4018 | break; |
| 4019 | } |
| 4020 | } |
| 4021 | return gen_rtx_REG (orig_mode, regno); |
| 4022 | } |
| 4023 | |
| 4024 | static rtx |
| 4025 | ix86_function_value_1 (const_tree valtype, const_tree fntype_or_decl, |
| 4026 | machine_mode orig_mode, machine_mode mode) |
| 4027 | { |
| 4028 | const_tree fn, fntype; |
| 4029 | |
| 4030 | fn = NULL_TREE(tree) __null; |
| 4031 | if (fntype_or_decl && DECL_P (fntype_or_decl)(tree_code_type[(int) (((enum tree_code) (fntype_or_decl)-> base.code))] == tcc_declaration)) |
| 4032 | fn = fntype_or_decl; |
| 4033 | fntype = fn ? TREE_TYPE (fn)((contains_struct_check ((fn), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4033, __FUNCTION__))->typed.type) : fntype_or_decl; |
| 4034 | |
| 4035 | if (ix86_function_type_abi (fntype) == MS_ABI) |
| 4036 | { |
| 4037 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4038 | return function_value_ms_64 (orig_mode, mode, valtype); |
| 4039 | else |
| 4040 | return function_value_ms_32 (orig_mode, mode, fntype, fn, valtype); |
| 4041 | } |
| 4042 | else if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4043 | return function_value_64 (orig_mode, mode, valtype); |
| 4044 | else |
| 4045 | return function_value_32 (orig_mode, mode, fntype, fn); |
| 4046 | } |
| 4047 | |
| 4048 | static rtx |
| 4049 | ix86_function_value (const_tree valtype, const_tree fntype_or_decl, bool) |
| 4050 | { |
| 4051 | machine_mode mode, orig_mode; |
| 4052 | |
| 4053 | orig_mode = TYPE_MODE (valtype)((((enum tree_code) ((tree_class_check ((valtype), (tcc_type) , "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4053, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (valtype) : (valtype)->type_common.mode); |
| 4054 | mode = type_natural_mode (valtype, NULL__null, true); |
| 4055 | return ix86_function_value_1 (valtype, fntype_or_decl, orig_mode, mode); |
| 4056 | } |
| 4057 | |
| 4058 | /* Pointer function arguments and return values are promoted to |
| 4059 | word_mode for normal functions. */ |
| 4060 | |
| 4061 | static machine_mode |
| 4062 | ix86_promote_function_mode (const_tree type, machine_mode mode, |
| 4063 | int *punsignedp, const_tree fntype, |
| 4064 | int for_return) |
| 4065 | { |
| 4066 | if (cfun(cfun + 0)->machine->func_type == TYPE_NORMAL |
| 4067 | && type != NULL_TREE(tree) __null |
| 4068 | && POINTER_TYPE_P (type)(((enum tree_code) (type)->base.code) == POINTER_TYPE || ( (enum tree_code) (type)->base.code) == REFERENCE_TYPE)) |
| 4069 | { |
| 4070 | *punsignedp = POINTERS_EXTEND_UNSIGNED1; |
| 4071 | return word_mode; |
| 4072 | } |
| 4073 | return default_promote_function_mode (type, mode, punsignedp, fntype, |
| 4074 | for_return); |
| 4075 | } |
| 4076 | |
| 4077 | /* Return true if a structure, union or array with MODE containing FIELD |
| 4078 | should be accessed using BLKmode. */ |
| 4079 | |
| 4080 | static bool |
| 4081 | ix86_member_type_forces_blk (const_tree field, machine_mode mode) |
| 4082 | { |
| 4083 | /* Union with XFmode must be in BLKmode. */ |
| 4084 | return (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)) |
| 4085 | && (TREE_CODE (DECL_FIELD_CONTEXT (field))((enum tree_code) (((tree_check ((field), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4085, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ))->base.code) == UNION_TYPE |
| 4086 | || TREE_CODE (DECL_FIELD_CONTEXT (field))((enum tree_code) (((tree_check ((field), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4086, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ))->base.code) == QUAL_UNION_TYPE)); |
| 4087 | } |
| 4088 | |
| 4089 | rtx |
| 4090 | ix86_libcall_value (machine_mode mode) |
| 4091 | { |
| 4092 | return ix86_function_value_1 (NULL__null, NULL__null, mode, mode); |
| 4093 | } |
| 4094 | |
| 4095 | /* Return true iff type is returned in memory. */ |
| 4096 | |
| 4097 | static bool |
| 4098 | ix86_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED__attribute__ ((__unused__))) |
| 4099 | { |
| 4100 | const machine_mode mode = type_natural_mode (type, NULL__null, true); |
| 4101 | HOST_WIDE_INTlong size; |
| 4102 | |
| 4103 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4104 | { |
| 4105 | if (ix86_function_type_abi (fntype) == MS_ABI) |
| 4106 | { |
| 4107 | size = int_size_in_bytes (type); |
| 4108 | |
| 4109 | /* __m128 is returned in xmm0. */ |
| 4110 | if ((!type || VECTOR_INTEGER_TYPE_P (type)((((enum tree_code) (type)->base.code) == VECTOR_TYPE) && ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4110, __FUNCTION__))->typed.type))->base.code) == INTEGER_TYPE ) |
| 4111 | || INTEGRAL_TYPE_P (type)(((enum tree_code) (type)->base.code) == ENUMERAL_TYPE || ( (enum tree_code) (type)->base.code) == BOOLEAN_TYPE || ((enum tree_code) (type)->base.code) == INTEGER_TYPE) |
| 4112 | || VECTOR_FLOAT_TYPE_P (type)((((enum tree_code) (type)->base.code) == VECTOR_TYPE) && ((enum tree_code) (((contains_struct_check ((type), (TS_TYPED ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4112, __FUNCTION__))->typed.type))->base.code) == REAL_TYPE )) |
| 4113 | && (SCALAR_INT_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_INT || ((enum mode_class ) mode_class[mode]) == MODE_PARTIAL_INT) || VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM)) |
| 4114 | && !COMPLEX_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_COMPLEX_INT || ( (enum mode_class) mode_class[mode]) == MODE_COMPLEX_FLOAT) |
| 4115 | && (GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) == 16 || size == 16)) |
| 4116 | return false; |
| 4117 | |
| 4118 | /* Otherwise, the size must be exactly in [1248]. */ |
| 4119 | return size != 1 && size != 2 && size != 4 && size != 8; |
| 4120 | } |
| 4121 | else |
| 4122 | { |
| 4123 | int needed_intregs, needed_sseregs; |
| 4124 | |
| 4125 | return examine_argument (mode, type, 1, |
| 4126 | &needed_intregs, &needed_sseregs); |
| 4127 | } |
| 4128 | } |
| 4129 | else |
| 4130 | { |
| 4131 | size = int_size_in_bytes (type); |
| 4132 | |
| 4133 | /* Intel MCU psABI returns scalars and aggregates no larger than 8 |
| 4134 | bytes in registers. */ |
| 4135 | if (TARGET_IAMCU((global_options.x_target_flags & (1U << 12)) != 0)) |
| 4136 | return VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) || size < 0 || size > 8; |
| 4137 | |
| 4138 | if (mode == BLKmode((void) 0, E_BLKmode)) |
| 4139 | return true; |
| 4140 | |
| 4141 | if (MS_AGGREGATE_RETURN0 && AGGREGATE_TYPE_P (type)(((enum tree_code) (type)->base.code) == ARRAY_TYPE || ((( enum tree_code) (type)->base.code) == RECORD_TYPE || ((enum tree_code) (type)->base.code) == UNION_TYPE || ((enum tree_code ) (type)->base.code) == QUAL_UNION_TYPE)) && size <= 8) |
| 4142 | return false; |
| 4143 | |
| 4144 | if (VECTOR_MODE_P (mode)(((enum mode_class) mode_class[mode]) == MODE_VECTOR_BOOL || ( (enum mode_class) mode_class[mode]) == MODE_VECTOR_INT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FLOAT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_FRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UFRACT || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_ACCUM || ((enum mode_class) mode_class[mode]) == MODE_VECTOR_UACCUM) || mode == TImode(scalar_int_mode ((scalar_int_mode::from_int) E_TImode))) |
| 4145 | { |
| 4146 | /* User-created vectors small enough to fit in EAX. */ |
| 4147 | if (size < 8) |
| 4148 | return false; |
| 4149 | |
| 4150 | /* Unless ABI prescibes otherwise, |
| 4151 | MMX/3dNow values are returned in MM0 if available. */ |
| 4152 | |
| 4153 | if (size == 8) |
| 4154 | return TARGET_VECT8_RETURNS((global_options.x_target_flags & (1U << 28)) != 0) || !TARGET_MMX((global_options.x_ix86_isa_flags & (1UL << 36)) != 0); |
| 4155 | |
| 4156 | /* SSE values are returned in XMM0 if available. */ |
| 4157 | if (size == 16) |
| 4158 | return !TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0); |
| 4159 | |
| 4160 | /* AVX values are returned in YMM0 if available. */ |
| 4161 | if (size == 32) |
| 4162 | return !TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ); |
| 4163 | |
| 4164 | /* AVX512F values are returned in ZMM0 if available. */ |
| 4165 | if (size == 64) |
| 4166 | return !TARGET_AVX512F((global_options.x_ix86_isa_flags & (1UL << 15)) != 0); |
| 4167 | } |
| 4168 | |
| 4169 | if (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode))) |
| 4170 | return false; |
| 4171 | |
| 4172 | if (size > 12) |
| 4173 | return true; |
| 4174 | |
| 4175 | /* OImode shouldn't be used directly. */ |
| 4176 | gcc_assert (mode != OImode)((void)(!(mode != (scalar_int_mode ((scalar_int_mode::from_int ) E_OImode))) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4176, __FUNCTION__), 0 : 0)); |
| 4177 | |
| 4178 | return false; |
| 4179 | } |
| 4180 | } |
| 4181 | |
| 4182 | |
| 4183 | /* Create the va_list data type. */ |
| 4184 | |
| 4185 | static tree |
| 4186 | ix86_build_builtin_va_list_64 (void) |
| 4187 | { |
| 4188 | tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl; |
| 4189 | |
| 4190 | record = lang_hooks.types.make_type (RECORD_TYPE); |
| 4191 | type_decl = build_decl (BUILTINS_LOCATION((location_t) 1), |
| 4192 | TYPE_DECL, get_identifier ("__va_list_tag")(__builtin_constant_p ("__va_list_tag") ? get_identifier_with_length (("__va_list_tag"), strlen ("__va_list_tag")) : get_identifier ("__va_list_tag")), record); |
| 4193 | |
| 4194 | f_gpr = build_decl (BUILTINS_LOCATION((location_t) 1), |
| 4195 | FIELD_DECL, get_identifier ("gp_offset")(__builtin_constant_p ("gp_offset") ? get_identifier_with_length (("gp_offset"), strlen ("gp_offset")) : get_identifier ("gp_offset" )), |
| 4196 | unsigned_type_nodeinteger_types[itk_unsigned_int]); |
| 4197 | f_fpr = build_decl (BUILTINS_LOCATION((location_t) 1), |
| 4198 | FIELD_DECL, get_identifier ("fp_offset")(__builtin_constant_p ("fp_offset") ? get_identifier_with_length (("fp_offset"), strlen ("fp_offset")) : get_identifier ("fp_offset" )), |
| 4199 | unsigned_type_nodeinteger_types[itk_unsigned_int]); |
| 4200 | f_ovf = build_decl (BUILTINS_LOCATION((location_t) 1), |
| 4201 | FIELD_DECL, get_identifier ("overflow_arg_area")(__builtin_constant_p ("overflow_arg_area") ? get_identifier_with_length (("overflow_arg_area"), strlen ("overflow_arg_area")) : get_identifier ("overflow_arg_area")), |
| 4202 | ptr_type_nodeglobal_trees[TI_PTR_TYPE]); |
| 4203 | f_sav = build_decl (BUILTINS_LOCATION((location_t) 1), |
| 4204 | FIELD_DECL, get_identifier ("reg_save_area")(__builtin_constant_p ("reg_save_area") ? get_identifier_with_length (("reg_save_area"), strlen ("reg_save_area")) : get_identifier ("reg_save_area")), |
| 4205 | ptr_type_nodeglobal_trees[TI_PTR_TYPE]); |
| 4206 | |
| 4207 | va_list_gpr_counter_fieldglobal_trees[TI_VA_LIST_GPR_COUNTER_FIELD] = f_gpr; |
| 4208 | va_list_fpr_counter_fieldglobal_trees[TI_VA_LIST_FPR_COUNTER_FIELD] = f_fpr; |
| 4209 | |
| 4210 | DECL_FIELD_CONTEXT (f_gpr)((tree_check ((f_gpr), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4210, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ) = record; |
| 4211 | DECL_FIELD_CONTEXT (f_fpr)((tree_check ((f_fpr), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4211, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ) = record; |
| 4212 | DECL_FIELD_CONTEXT (f_ovf)((tree_check ((f_ovf), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4212, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ) = record; |
| 4213 | DECL_FIELD_CONTEXT (f_sav)((tree_check ((f_sav), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4213, __FUNCTION__, (FIELD_DECL)))->decl_minimal.context ) = record; |
| 4214 | |
| 4215 | TYPE_STUB_DECL (record)(((contains_struct_check (((tree_class_check ((record), (tcc_type ), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4215, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4215, __FUNCTION__))->common.chain)) = type_decl; |
| 4216 | TYPE_NAME (record)((tree_class_check ((record), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4216, __FUNCTION__))->type_common.name) = type_decl; |
| 4217 | TYPE_FIELDS (record)((tree_check3 ((record), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4217, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values) = f_gpr; |
| 4218 | DECL_CHAIN (f_gpr)(((contains_struct_check (((contains_struct_check ((f_gpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4218, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4218, __FUNCTION__))->common.chain)) = f_fpr; |
| 4219 | DECL_CHAIN (f_fpr)(((contains_struct_check (((contains_struct_check ((f_fpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4219, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4219, __FUNCTION__))->common.chain)) = f_ovf; |
| 4220 | DECL_CHAIN (f_ovf)(((contains_struct_check (((contains_struct_check ((f_ovf), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4220, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4220, __FUNCTION__))->common.chain)) = f_sav; |
| 4221 | |
| 4222 | layout_type (record); |
| 4223 | |
| 4224 | TYPE_ATTRIBUTES (record)((tree_class_check ((record), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4224, __FUNCTION__))->type_common.attributes) = tree_cons (get_identifier ("sysv_abi va_list")(__builtin_constant_p ("sysv_abi va_list") ? get_identifier_with_length (("sysv_abi va_list"), strlen ("sysv_abi va_list")) : get_identifier ("sysv_abi va_list")), |
| 4225 | NULL_TREE(tree) __null, TYPE_ATTRIBUTES (record)((tree_class_check ((record), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4225, __FUNCTION__))->type_common.attributes)); |
| 4226 | |
| 4227 | /* The correct type is an array type of one element. */ |
| 4228 | return build_array_type (record, build_index_type (size_zero_nodeglobal_trees[TI_SIZE_ZERO])); |
| 4229 | } |
| 4230 | |
| 4231 | /* Setup the builtin va_list data type and for 64-bit the additional |
| 4232 | calling convention specific va_list data types. */ |
| 4233 | |
| 4234 | static tree |
| 4235 | ix86_build_builtin_va_list (void) |
| 4236 | { |
| 4237 | if (TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4238 | { |
| 4239 | /* Initialize ABI specific va_list builtin types. |
| 4240 | |
| 4241 | In lto1, we can encounter two va_list types: |
| 4242 | - one as a result of the type-merge across TUs, and |
| 4243 | - the one constructed here. |
| 4244 | These two types will not have the same TYPE_MAIN_VARIANT, and therefore |
| 4245 | a type identity check in canonical_va_list_type based on |
| 4246 | TYPE_MAIN_VARIANT (which we used to have) will not work. |
| 4247 | Instead, we tag each va_list_type_node with its unique attribute, and |
| 4248 | look for the attribute in the type identity check in |
| 4249 | canonical_va_list_type. |
| 4250 | |
| 4251 | Tagging sysv_va_list_type_node directly with the attribute is |
| 4252 | problematic since it's a array of one record, which will degrade into a |
| 4253 | pointer to record when used as parameter (see build_va_arg comments for |
| 4254 | an example), dropping the attribute in the process. So we tag the |
| 4255 | record instead. */ |
| 4256 | |
| 4257 | /* For SYSV_ABI we use an array of one record. */ |
| 4258 | sysv_va_list_type_node = ix86_build_builtin_va_list_64 (); |
| 4259 | |
| 4260 | /* For MS_ABI we use plain pointer to argument area. */ |
| 4261 | tree char_ptr_type = build_pointer_type (char_type_nodeinteger_types[itk_char]); |
| 4262 | tree attr = tree_cons (get_identifier ("ms_abi va_list")(__builtin_constant_p ("ms_abi va_list") ? get_identifier_with_length (("ms_abi va_list"), strlen ("ms_abi va_list")) : get_identifier ("ms_abi va_list")), NULL_TREE(tree) __null, |
| 4263 | TYPE_ATTRIBUTES (char_ptr_type)((tree_class_check ((char_ptr_type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4263, __FUNCTION__))->type_common.attributes)); |
| 4264 | ms_va_list_type_node = build_type_attribute_variant (char_ptr_type, attr); |
| 4265 | |
| 4266 | return ((ix86_abiglobal_options.x_ix86_abi == MS_ABI) |
| 4267 | ? ms_va_list_type_node |
| 4268 | : sysv_va_list_type_node); |
| 4269 | } |
| 4270 | else |
| 4271 | { |
| 4272 | /* For i386 we use plain pointer to argument area. */ |
| 4273 | return build_pointer_type (char_type_nodeinteger_types[itk_char]); |
| 4274 | } |
| 4275 | } |
| 4276 | |
| 4277 | /* Worker function for TARGET_SETUP_INCOMING_VARARGS. */ |
| 4278 | |
| 4279 | static void |
| 4280 | setup_incoming_varargs_64 (CUMULATIVE_ARGS *cum) |
| 4281 | { |
| 4282 | rtx save_area, mem; |
| 4283 | alias_set_type set; |
| 4284 | int i, max; |
| 4285 | |
| 4286 | /* GPR size of varargs save area. */ |
| 4287 | if (cfun(cfun + 0)->va_list_gpr_size) |
| 4288 | ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size) = X86_64_REGPARM_MAX6 * UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4); |
| 4289 | else |
| 4290 | ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size) = 0; |
| 4291 | |
| 4292 | /* FPR size of varargs save area. We don't need it if we don't pass |
| 4293 | anything in SSE registers. */ |
| 4294 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && cfun(cfun + 0)->va_list_fpr_size) |
| 4295 | ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size) = X86_64_SSE_REGPARM_MAX8 * 16; |
| 4296 | else |
| 4297 | ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size) = 0; |
| 4298 | |
| 4299 | if (! ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size) && ! ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size)) |
| 4300 | return; |
| 4301 | |
| 4302 | save_area = frame_pointer_rtx((this_target_rtl->x_global_rtl)[GR_FRAME_POINTER]); |
| 4303 | set = get_varargs_alias_set (); |
| 4304 | |
| 4305 | max = cum->regno + cfun(cfun + 0)->va_list_gpr_size / UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4); |
| 4306 | if (max > X86_64_REGPARM_MAX6) |
| 4307 | max = X86_64_REGPARM_MAX6; |
| 4308 | |
| 4309 | for (i = cum->regno; i < max; i++) |
| 4310 | { |
| 4311 | mem = gen_rtx_MEM (word_mode, |
| 4312 | plus_constant (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), save_area, i * UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 4313 | MEM_NOTRAP_P (mem)(__extension__ ({ __typeof ((mem)) const _rtx = ((mem)); if ( ((enum rtx_code) (_rtx)->code) != MEM) rtl_check_failed_flag ("MEM_NOTRAP_P", _rtx, "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4313, __FUNCTION__); _rtx; })->call) = 1; |
| 4314 | set_mem_alias_set (mem, set); |
| 4315 | emit_move_insn (mem, |
| 4316 | gen_rtx_REG (word_mode, |
| 4317 | x86_64_int_parameter_registers[i])); |
| 4318 | } |
| 4319 | |
| 4320 | if (ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size)) |
| 4321 | { |
| 4322 | machine_mode smode; |
| 4323 | rtx_code_label *label; |
| 4324 | rtx test; |
| 4325 | |
| 4326 | /* Now emit code to save SSE registers. The AX parameter contains number |
| 4327 | of SSE parameter registers used to call this function, though all we |
| 4328 | actually check here is the zero/non-zero status. */ |
| 4329 | |
| 4330 | label = gen_label_rtx (); |
| 4331 | test = gen_rtx_EQ (VOIDmode, gen_rtx_REG (QImode, AX_REG), const0_rtx)gen_rtx_fmt_ee_stat ((EQ), ((((void) 0, E_VOIDmode))), ((gen_rtx_REG ((scalar_int_mode ((scalar_int_mode::from_int) E_QImode)), 0 ))), (((const_int_rtx[64]))) ); |
| 4332 | emit_jump_insn (gen_cbranchqi4 (test, XEXP (test, 0)(((test)->u.fld[0]).rt_rtx), XEXP (test, 1)(((test)->u.fld[1]).rt_rtx), |
| 4333 | label)); |
| 4334 | |
| 4335 | /* ??? If !TARGET_SSE_TYPELESS_STORES, would we perform better if |
| 4336 | we used movdqa (i.e. TImode) instead? Perhaps even better would |
| 4337 | be if we could determine the real mode of the data, via a hook |
| 4338 | into pass_stdarg. Ignore all that for now. */ |
| 4339 | smode = V4SFmode((void) 0, E_V4SFmode); |
| 4340 | if (crtl(&x_rtl)->stack_alignment_needed < GET_MODE_ALIGNMENT (smode)get_mode_alignment (smode)) |
| 4341 | crtl(&x_rtl)->stack_alignment_needed = GET_MODE_ALIGNMENT (smode)get_mode_alignment (smode); |
| 4342 | |
| 4343 | max = cum->sse_regno + cfun(cfun + 0)->va_list_fpr_size / 16; |
| 4344 | if (max > X86_64_SSE_REGPARM_MAX8) |
| 4345 | max = X86_64_SSE_REGPARM_MAX8; |
| 4346 | |
| 4347 | for (i = cum->sse_regno; i < max; ++i) |
| 4348 | { |
| 4349 | mem = plus_constant (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), save_area, |
| 4350 | i * 16 + ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size)); |
| 4351 | mem = gen_rtx_MEM (smode, mem); |
| 4352 | MEM_NOTRAP_P (mem)(__extension__ ({ __typeof ((mem)) const _rtx = ((mem)); if ( ((enum rtx_code) (_rtx)->code) != MEM) rtl_check_failed_flag ("MEM_NOTRAP_P", _rtx, "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4352, __FUNCTION__); _rtx; })->call) = 1; |
| 4353 | set_mem_alias_set (mem, set); |
| 4354 | set_mem_align (mem, GET_MODE_ALIGNMENT (smode)get_mode_alignment (smode)); |
| 4355 | |
| 4356 | emit_move_insn (mem, gen_rtx_REG (smode, GET_SSE_REGNO (i)((i) < 8 ? 20 + (i) : (i) < 16 ? 44 + (i) - 8 : 52 + (i ) - 16))); |
| 4357 | } |
| 4358 | |
| 4359 | emit_label (label); |
| 4360 | } |
| 4361 | } |
| 4362 | |
| 4363 | static void |
| 4364 | setup_incoming_varargs_ms_64 (CUMULATIVE_ARGS *cum) |
| 4365 | { |
| 4366 | alias_set_type set = get_varargs_alias_set (); |
| 4367 | int i; |
| 4368 | |
| 4369 | /* Reset to zero, as there might be a sysv vaarg used |
| 4370 | before. */ |
| 4371 | ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size) = 0; |
| 4372 | ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size) = 0; |
| 4373 | |
| 4374 | for (i = cum->regno; i < X86_64_MS_REGPARM_MAX4; i++) |
| 4375 | { |
| 4376 | rtx reg, mem; |
| 4377 | |
| 4378 | mem = gen_rtx_MEM (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), |
| 4379 | plus_constant (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), virtual_incoming_args_rtx((this_target_rtl->x_global_rtl)[GR_VIRTUAL_INCOMING_ARGS] ), |
| 4380 | i * UNITS_PER_WORD(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 4381 | MEM_NOTRAP_P (mem)(__extension__ ({ __typeof ((mem)) const _rtx = ((mem)); if ( ((enum rtx_code) (_rtx)->code) != MEM) rtl_check_failed_flag ("MEM_NOTRAP_P", _rtx, "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4381, __FUNCTION__); _rtx; })->call) = 1; |
| 4382 | set_mem_alias_set (mem, set); |
| 4383 | |
| 4384 | reg = gen_rtx_REG (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), x86_64_ms_abi_int_parameter_registers[i]); |
| 4385 | emit_move_insn (mem, reg); |
| 4386 | } |
| 4387 | } |
| 4388 | |
| 4389 | static void |
| 4390 | ix86_setup_incoming_varargs (cumulative_args_t cum_v, |
| 4391 | const function_arg_info &arg, |
| 4392 | int *, int no_rtl) |
| 4393 | { |
| 4394 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
| 4395 | CUMULATIVE_ARGS next_cum; |
| 4396 | tree fntype; |
| 4397 | |
| 4398 | /* This argument doesn't appear to be used anymore. Which is good, |
| 4399 | because the old code here didn't suppress rtl generation. */ |
| 4400 | gcc_assert (!no_rtl)((void)(!(!no_rtl) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4400, __FUNCTION__), 0 : 0)); |
| 4401 | |
| 4402 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4403 | return; |
| 4404 | |
| 4405 | fntype = TREE_TYPE (current_function_decl)((contains_struct_check ((current_function_decl), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4405, __FUNCTION__))->typed.type); |
| 4406 | |
| 4407 | /* For varargs, we do not want to skip the dummy va_dcl argument. |
| 4408 | For stdargs, we do want to skip the last named argument. */ |
| 4409 | next_cum = *cum; |
| 4410 | if (stdarg_p (fntype)) |
| 4411 | ix86_function_arg_advance (pack_cumulative_args (&next_cum), arg); |
| 4412 | |
| 4413 | if (cum->call_abi == MS_ABI) |
| 4414 | setup_incoming_varargs_ms_64 (&next_cum); |
| 4415 | else |
| 4416 | setup_incoming_varargs_64 (&next_cum); |
| 4417 | } |
| 4418 | |
| 4419 | /* Checks if TYPE is of kind va_list char *. */ |
| 4420 | |
| 4421 | static bool |
| 4422 | is_va_list_char_pointer (tree type) |
| 4423 | { |
| 4424 | tree canonic; |
| 4425 | |
| 4426 | /* For 32-bit it is always true. */ |
| 4427 | if (!TARGET_64BIT((global_options.x_ix86_isa_flags & (1UL << 1)) != 0 )) |
| 4428 | return true; |
| 4429 | canonic = ix86_canonical_va_list_type (type); |
| 4430 | return (canonic == ms_va_list_type_node |
| 4431 | || (ix86_abiglobal_options.x_ix86_abi == MS_ABI && canonic == va_list_type_nodeglobal_trees[TI_VA_LIST_TYPE])); |
| 4432 | } |
| 4433 | |
| 4434 | /* Implement va_start. */ |
| 4435 | |
| 4436 | static void |
| 4437 | ix86_va_start (tree valist, rtx nextarg) |
| 4438 | { |
| 4439 | HOST_WIDE_INTlong words, n_gpr, n_fpr; |
| 4440 | tree f_gpr, f_fpr, f_ovf, f_sav; |
| 4441 | tree gpr, fpr, ovf, sav, t; |
| 4442 | tree type; |
| 4443 | rtx ovf_rtx; |
| 4444 | |
| 4445 | if (flag_split_stackglobal_options.x_flag_split_stack |
| 4446 | && cfun(cfun + 0)->machine->split_stack_varargs_pointer == NULL_RTX(rtx) 0) |
| 4447 | { |
| 4448 | unsigned int scratch_regno; |
| 4449 | |
| 4450 | /* When we are splitting the stack, we can't refer to the stack |
| 4451 | arguments using internal_arg_pointer, because they may be on |
| 4452 | the old stack. The split stack prologue will arrange to |
| 4453 | leave a pointer to the old stack arguments in a scratch |
| 4454 | register, which we here copy to a pseudo-register. The split |
| 4455 | stack prologue can't set the pseudo-register directly because |
| 4456 | it (the prologue) runs before any registers have been saved. */ |
| 4457 | |
| 4458 | scratch_regno = split_stack_prologue_scratch_regno (); |
| 4459 | if (scratch_regno != INVALID_REGNUM(~(unsigned int) 0)) |
| 4460 | { |
| 4461 | rtx reg; |
| 4462 | rtx_insn *seq; |
| 4463 | |
| 4464 | reg = gen_reg_rtx (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode)))); |
| 4465 | cfun(cfun + 0)->machine->split_stack_varargs_pointer = reg; |
| 4466 | |
| 4467 | start_sequence (); |
| 4468 | emit_move_insn (reg, gen_rtx_REG (Pmode(global_options.x_ix86_pmode == PMODE_DI ? (scalar_int_mode ( (scalar_int_mode::from_int) E_DImode)) : (scalar_int_mode ((scalar_int_mode ::from_int) E_SImode))), scratch_regno)); |
| 4469 | seq = get_insns (); |
| 4470 | end_sequence (); |
| 4471 | |
| 4472 | push_topmost_sequence (); |
| 4473 | emit_insn_after (seq, entry_of_function ()); |
| 4474 | pop_topmost_sequence (); |
| 4475 | } |
| 4476 | } |
| 4477 | |
| 4478 | /* Only 64bit target needs something special. */ |
| 4479 | if (is_va_list_char_pointer (TREE_TYPE (valist)((contains_struct_check ((valist), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4479, __FUNCTION__))->typed.type))) |
| 4480 | { |
| 4481 | if (cfun(cfun + 0)->machine->split_stack_varargs_pointer == NULL_RTX(rtx) 0) |
| 4482 | std_expand_builtin_va_start (valist, nextarg); |
| 4483 | else |
| 4484 | { |
| 4485 | rtx va_r, next; |
| 4486 | |
| 4487 | va_r = expand_expr (valist, NULL_RTX(rtx) 0, VOIDmode((void) 0, E_VOIDmode), EXPAND_WRITE); |
| 4488 | next = expand_binop (ptr_mode, add_optab, |
| 4489 | cfun(cfun + 0)->machine->split_stack_varargs_pointer, |
| 4490 | crtl(&x_rtl)->args.arg_offset_rtx, |
| 4491 | NULL_RTX(rtx) 0, 0, OPTAB_LIB_WIDEN); |
| 4492 | convert_move (va_r, next, 0); |
| 4493 | } |
| 4494 | return; |
| 4495 | } |
| 4496 | |
| 4497 | f_gpr = TYPE_FIELDS (TREE_TYPE (sysv_va_list_type_node))((tree_check3 ((((contains_struct_check ((sysv_va_list_type_node ), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4497, __FUNCTION__))->typed.type)), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4497, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); |
| 4498 | f_fpr = DECL_CHAIN (f_gpr)(((contains_struct_check (((contains_struct_check ((f_gpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4498, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4498, __FUNCTION__))->common.chain)); |
| 4499 | f_ovf = DECL_CHAIN (f_fpr)(((contains_struct_check (((contains_struct_check ((f_fpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4499, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4499, __FUNCTION__))->common.chain)); |
| 4500 | f_sav = DECL_CHAIN (f_ovf)(((contains_struct_check (((contains_struct_check ((f_ovf), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4500, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4500, __FUNCTION__))->common.chain)); |
| 4501 | |
| 4502 | valist = build_simple_mem_ref (valist)build_simple_mem_ref_loc (((location_t) 0), valist); |
| 4503 | TREE_TYPE (valist)((contains_struct_check ((valist), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4503, __FUNCTION__))->typed.type) = TREE_TYPE (sysv_va_list_type_node)((contains_struct_check ((sysv_va_list_type_node), (TS_TYPED) , "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4503, __FUNCTION__))->typed.type); |
| 4504 | /* The following should be folded into the MEM_REF offset. */ |
| 4505 | gpr = build3 (COMPONENT_REF, TREE_TYPE (f_gpr)((contains_struct_check ((f_gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4505, __FUNCTION__))->typed.type), unshare_expr (valist), |
| 4506 | f_gpr, NULL_TREE(tree) __null); |
| 4507 | fpr = build3 (COMPONENT_REF, TREE_TYPE (f_fpr)((contains_struct_check ((f_fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4507, __FUNCTION__))->typed.type), unshare_expr (valist), |
| 4508 | f_fpr, NULL_TREE(tree) __null); |
| 4509 | ovf = build3 (COMPONENT_REF, TREE_TYPE (f_ovf)((contains_struct_check ((f_ovf), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4509, __FUNCTION__))->typed.type), unshare_expr (valist), |
| 4510 | f_ovf, NULL_TREE(tree) __null); |
| 4511 | sav = build3 (COMPONENT_REF, TREE_TYPE (f_sav)((contains_struct_check ((f_sav), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4511, __FUNCTION__))->typed.type), unshare_expr (valist), |
| 4512 | f_sav, NULL_TREE(tree) __null); |
| 4513 | |
| 4514 | /* Count number of gp and fp argument registers used. */ |
| 4515 | words = crtl(&x_rtl)->args.info.words; |
| 4516 | n_gpr = crtl(&x_rtl)->args.info.regno; |
| 4517 | n_fpr = crtl(&x_rtl)->args.info.sse_regno; |
| 4518 | |
| 4519 | if (cfun(cfun + 0)->va_list_gpr_size) |
| 4520 | { |
| 4521 | type = TREE_TYPE (gpr)((contains_struct_check ((gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4521, __FUNCTION__))->typed.type); |
| 4522 | t = build2 (MODIFY_EXPR, type, |
| 4523 | gpr, build_int_cst (type, n_gpr * 8)); |
| 4524 | TREE_SIDE_EFFECTS (t)((non_type_check ((t), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4524, __FUNCTION__))->base.side_effects_flag) = 1; |
| 4525 | expand_expr (t, const0_rtx(const_int_rtx[64]), VOIDmode((void) 0, E_VOIDmode), EXPAND_NORMAL); |
| 4526 | } |
| 4527 | |
| 4528 | if (TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0) && cfun(cfun + 0)->va_list_fpr_size) |
| 4529 | { |
| 4530 | type = TREE_TYPE (fpr)((contains_struct_check ((fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4530, __FUNCTION__))->typed.type); |
| 4531 | t = build2 (MODIFY_EXPR, type, fpr, |
| 4532 | build_int_cst (type, n_fpr * 16 + 8*X86_64_REGPARM_MAX6)); |
| 4533 | TREE_SIDE_EFFECTS (t)((non_type_check ((t), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4533, __FUNCTION__))->base.side_effects_flag) = 1; |
| 4534 | expand_expr (t, const0_rtx(const_int_rtx[64]), VOIDmode((void) 0, E_VOIDmode), EXPAND_NORMAL); |
| 4535 | } |
| 4536 | |
| 4537 | /* Find the overflow area. */ |
| 4538 | type = TREE_TYPE (ovf)((contains_struct_check ((ovf), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4538, __FUNCTION__))->typed.type); |
| 4539 | if (cfun(cfun + 0)->machine->split_stack_varargs_pointer == NULL_RTX(rtx) 0) |
| 4540 | ovf_rtx = crtl(&x_rtl)->args.internal_arg_pointer; |
| 4541 | else |
| 4542 | ovf_rtx = cfun(cfun + 0)->machine->split_stack_varargs_pointer; |
| 4543 | t = make_tree (type, ovf_rtx); |
| 4544 | if (words != 0) |
| 4545 | t = fold_build_pointer_plus_hwi (t, words * UNITS_PER_WORD)fold_build_pointer_plus_hwi_loc (((location_t) 0), t, words * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 4546 | |
| 4547 | t = build2 (MODIFY_EXPR, type, ovf, t); |
| 4548 | TREE_SIDE_EFFECTS (t)((non_type_check ((t), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4548, __FUNCTION__))->base.side_effects_flag) = 1; |
| 4549 | expand_expr (t, const0_rtx(const_int_rtx[64]), VOIDmode((void) 0, E_VOIDmode), EXPAND_NORMAL); |
| 4550 | |
| 4551 | if (ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size) || ix86_varargs_fpr_size((cfun + 0)->machine->varargs_fpr_size)) |
| 4552 | { |
| 4553 | /* Find the register save area. |
| 4554 | Prologue of the function save it right above stack frame. */ |
| 4555 | type = TREE_TYPE (sav)((contains_struct_check ((sav), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4555, __FUNCTION__))->typed.type); |
| 4556 | t = make_tree (type, frame_pointer_rtx((this_target_rtl->x_global_rtl)[GR_FRAME_POINTER])); |
| 4557 | if (!ix86_varargs_gpr_size((cfun + 0)->machine->varargs_gpr_size)) |
| 4558 | t = fold_build_pointer_plus_hwi (t, -8 * X86_64_REGPARM_MAX)fold_build_pointer_plus_hwi_loc (((location_t) 0), t, -8 * 6); |
| 4559 | |
| 4560 | t = build2 (MODIFY_EXPR, type, sav, t); |
| 4561 | TREE_SIDE_EFFECTS (t)((non_type_check ((t), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4561, __FUNCTION__))->base.side_effects_flag) = 1; |
| 4562 | expand_expr (t, const0_rtx(const_int_rtx[64]), VOIDmode((void) 0, E_VOIDmode), EXPAND_NORMAL); |
| 4563 | } |
| 4564 | } |
| 4565 | |
| 4566 | /* Implement va_arg. */ |
| 4567 | |
| 4568 | static tree |
| 4569 | ix86_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p, |
| 4570 | gimple_seq *post_p) |
| 4571 | { |
| 4572 | static const int intreg[6] = { 0, 1, 2, 3, 4, 5 }; |
| 4573 | tree f_gpr, f_fpr, f_ovf, f_sav; |
| 4574 | tree gpr, fpr, ovf, sav, t; |
| 4575 | int size, rsize; |
| 4576 | tree lab_false, lab_over = NULL_TREE(tree) __null; |
| 4577 | tree addr, t2; |
| 4578 | rtx container; |
| 4579 | int indirect_p = 0; |
| 4580 | tree ptrtype; |
| 4581 | machine_mode nat_mode; |
| 4582 | unsigned int arg_boundary; |
| 4583 | unsigned int type_align; |
| 4584 | |
| 4585 | /* Only 64bit target needs something special. */ |
| 4586 | if (is_va_list_char_pointer (TREE_TYPE (valist)((contains_struct_check ((valist), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4586, __FUNCTION__))->typed.type))) |
| 4587 | return std_gimplify_va_arg_expr (valist, type, pre_p, post_p); |
| 4588 | |
| 4589 | f_gpr = TYPE_FIELDS (TREE_TYPE (sysv_va_list_type_node))((tree_check3 ((((contains_struct_check ((sysv_va_list_type_node ), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4589, __FUNCTION__))->typed.type)), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4589, __FUNCTION__, (RECORD_TYPE), (UNION_TYPE), (QUAL_UNION_TYPE )))->type_non_common.values); |
| 4590 | f_fpr = DECL_CHAIN (f_gpr)(((contains_struct_check (((contains_struct_check ((f_gpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4590, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4590, __FUNCTION__))->common.chain)); |
| 4591 | f_ovf = DECL_CHAIN (f_fpr)(((contains_struct_check (((contains_struct_check ((f_fpr), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4591, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4591, __FUNCTION__))->common.chain)); |
| 4592 | f_sav = DECL_CHAIN (f_ovf)(((contains_struct_check (((contains_struct_check ((f_ovf), ( TS_DECL_MINIMAL), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4592, __FUNCTION__))), (TS_COMMON), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4592, __FUNCTION__))->common.chain)); |
| 4593 | |
| 4594 | gpr = build3 (COMPONENT_REF, TREE_TYPE (f_gpr)((contains_struct_check ((f_gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4594, __FUNCTION__))->typed.type), |
| 4595 | valist, f_gpr, NULL_TREE(tree) __null); |
| 4596 | |
| 4597 | fpr = build3 (COMPONENT_REF, TREE_TYPE (f_fpr)((contains_struct_check ((f_fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4597, __FUNCTION__))->typed.type), valist, f_fpr, NULL_TREE(tree) __null); |
| 4598 | ovf = build3 (COMPONENT_REF, TREE_TYPE (f_ovf)((contains_struct_check ((f_ovf), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4598, __FUNCTION__))->typed.type), valist, f_ovf, NULL_TREE(tree) __null); |
| 4599 | sav = build3 (COMPONENT_REF, TREE_TYPE (f_sav)((contains_struct_check ((f_sav), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4599, __FUNCTION__))->typed.type), valist, f_sav, NULL_TREE(tree) __null); |
| 4600 | |
| 4601 | indirect_p = pass_va_arg_by_reference (type); |
| 4602 | if (indirect_p) |
| 4603 | type = build_pointer_type (type); |
| 4604 | size = arg_int_size_in_bytes (type); |
| 4605 | rsize = CEIL (size, UNITS_PER_WORD)(((size) + ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)) - 1) / ((((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4))); |
| 4606 | |
| 4607 | nat_mode = type_natural_mode (type, NULL__null, false); |
| 4608 | switch (nat_mode) |
| 4609 | { |
| 4610 | case E_V8SFmode: |
| 4611 | case E_V8SImode: |
| 4612 | case E_V32QImode: |
| 4613 | case E_V16HImode: |
| 4614 | case E_V4DFmode: |
| 4615 | case E_V4DImode: |
| 4616 | case E_V16SFmode: |
| 4617 | case E_V16SImode: |
| 4618 | case E_V64QImode: |
| 4619 | case E_V32HImode: |
| 4620 | case E_V8DFmode: |
| 4621 | case E_V8DImode: |
| 4622 | /* Unnamed 256 and 512bit vector mode parameters are passed on stack. */ |
| 4623 | if (!TARGET_64BIT_MS_ABI(((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) && ix86_cfun_abi () == MS_ABI)) |
| 4624 | { |
| 4625 | container = NULL__null; |
| 4626 | break; |
| 4627 | } |
| 4628 | /* FALLTHRU */ |
| 4629 | |
| 4630 | default: |
| 4631 | container = construct_container (nat_mode, TYPE_MODE (type)((((enum tree_code) ((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4631, __FUNCTION__)))->base.code) == VECTOR_TYPE) ? vector_type_mode (type) : (type)->type_common.mode), |
| 4632 | type, 0, X86_64_REGPARM_MAX6, |
| 4633 | X86_64_SSE_REGPARM_MAX8, intreg, |
| 4634 | 0); |
| 4635 | break; |
| 4636 | } |
| 4637 | |
| 4638 | /* Pull the value out of the saved registers. */ |
| 4639 | |
| 4640 | addr = create_tmp_var (ptr_type_nodeglobal_trees[TI_PTR_TYPE], "addr"); |
| 4641 | type_align = TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4641, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0); |
| 4642 | |
| 4643 | if (container) |
| 4644 | { |
| 4645 | int needed_intregs, needed_sseregs; |
| 4646 | bool need_temp; |
| 4647 | tree int_addr, sse_addr; |
| 4648 | |
| 4649 | lab_false = create_artificial_label (UNKNOWN_LOCATION((location_t) 0)); |
| 4650 | lab_over = create_artificial_label (UNKNOWN_LOCATION((location_t) 0)); |
| 4651 | |
| 4652 | examine_argument (nat_mode, type, 0, &needed_intregs, &needed_sseregs); |
| 4653 | |
| 4654 | need_temp = (!REG_P (container)(((enum rtx_code) (container)->code) == REG) |
| 4655 | && ((needed_intregs && TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4655, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) > 64) |
| 4656 | || TYPE_ALIGN (type)((tree_class_check ((type), (tcc_type), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4656, __FUNCTION__))->type_common.align ? ((unsigned)1) << ((type)->type_common.align - 1) : 0) > 128)); |
| 4657 | |
| 4658 | /* In case we are passing structure, verify that it is consecutive block |
| 4659 | on the register save area. If not we need to do moves. */ |
| 4660 | if (!need_temp && !REG_P (container)(((enum rtx_code) (container)->code) == REG)) |
| 4661 | { |
| 4662 | /* Verify that all registers are strictly consecutive */ |
| 4663 | if (SSE_REGNO_P (REGNO (XEXP (XVECEXP (container, 0, 0), 0)))(((unsigned long) (((rhs_regno(((((((((container)->u.fld[0 ]).rt_rtvec))->elem[0]))->u.fld[0]).rt_rtx))))) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20) ) || ((unsigned long) (((rhs_regno(((((((((container)->u.fld [0]).rt_rtvec))->elem[0]))->u.fld[0]).rt_rtx))))) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44) ) || ((unsigned long) (((rhs_regno(((((((((container)->u.fld [0]).rt_rtvec))->elem[0]))->u.fld[0]).rt_rtx))))) - (unsigned long) (52) <= (unsigned long) (67) - (unsigned long) (52) ))) |
| 4664 | { |
| 4665 | int i; |
| 4666 | |
| 4667 | for (i = 0; i < XVECLEN (container, 0)(((((container)->u.fld[0]).rt_rtvec))->num_elem) && !need_temp; i++) |
| 4668 | { |
| 4669 | rtx slot = XVECEXP (container, 0, i)(((((container)->u.fld[0]).rt_rtvec))->elem[i]); |
| 4670 | if (REGNO (XEXP (slot, 0))(rhs_regno((((slot)->u.fld[0]).rt_rtx))) != FIRST_SSE_REG20 + (unsigned int) i |
| 4671 | || INTVAL (XEXP (slot, 1))(((((slot)->u.fld[1]).rt_rtx))->u.hwint[0]) != i * 16) |
| 4672 | need_temp = true; |
| 4673 | } |
| 4674 | } |
| 4675 | else |
| 4676 | { |
| 4677 | int i; |
| 4678 | |
| 4679 | for (i = 0; i < XVECLEN (container, 0)(((((container)->u.fld[0]).rt_rtvec))->num_elem) && !need_temp; i++) |
| 4680 | { |
| 4681 | rtx slot = XVECEXP (container, 0, i)(((((container)->u.fld[0]).rt_rtvec))->elem[i]); |
| 4682 | if (REGNO (XEXP (slot, 0))(rhs_regno((((slot)->u.fld[0]).rt_rtx))) != (unsigned int) i |
| 4683 | || INTVAL (XEXP (slot, 1))(((((slot)->u.fld[1]).rt_rtx))->u.hwint[0]) != i * 8) |
| 4684 | need_temp = true; |
| 4685 | } |
| 4686 | } |
| 4687 | } |
| 4688 | if (!need_temp) |
| 4689 | { |
| 4690 | int_addr = addr; |
| 4691 | sse_addr = addr; |
| 4692 | } |
| 4693 | else |
| 4694 | { |
| 4695 | int_addr = create_tmp_var (ptr_type_nodeglobal_trees[TI_PTR_TYPE], "int_addr"); |
| 4696 | sse_addr = create_tmp_var (ptr_type_nodeglobal_trees[TI_PTR_TYPE], "sse_addr"); |
| 4697 | } |
| 4698 | |
| 4699 | /* First ensure that we fit completely in registers. */ |
| 4700 | if (needed_intregs) |
| 4701 | { |
| 4702 | t = build_int_cst (TREE_TYPE (gpr)((contains_struct_check ((gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4702, __FUNCTION__))->typed.type), |
| 4703 | (X86_64_REGPARM_MAX6 - needed_intregs + 1) * 8); |
| 4704 | t = build2 (GE_EXPR, boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE], gpr, t); |
| 4705 | t2 = build1 (GOTO_EXPR, void_type_nodeglobal_trees[TI_VOID_TYPE], lab_false); |
| 4706 | t = build3 (COND_EXPR, void_type_nodeglobal_trees[TI_VOID_TYPE], t, t2, NULL_TREE(tree) __null); |
| 4707 | gimplify_and_add (t, pre_p); |
| 4708 | } |
| 4709 | if (needed_sseregs) |
| 4710 | { |
| 4711 | t = build_int_cst (TREE_TYPE (fpr)((contains_struct_check ((fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4711, __FUNCTION__))->typed.type), |
| 4712 | (X86_64_SSE_REGPARM_MAX8 - needed_sseregs + 1) * 16 |
| 4713 | + X86_64_REGPARM_MAX6 * 8); |
| 4714 | t = build2 (GE_EXPR, boolean_type_nodeglobal_trees[TI_BOOLEAN_TYPE], fpr, t); |
| 4715 | t2 = build1 (GOTO_EXPR, void_type_nodeglobal_trees[TI_VOID_TYPE], lab_false); |
| 4716 | t = build3 (COND_EXPR, void_type_nodeglobal_trees[TI_VOID_TYPE], t, t2, NULL_TREE(tree) __null); |
| 4717 | gimplify_and_add (t, pre_p); |
| 4718 | } |
| 4719 | |
| 4720 | /* Compute index to start of area used for integer regs. */ |
| 4721 | if (needed_intregs) |
| 4722 | { |
| 4723 | /* int_addr = gpr + sav; */ |
| 4724 | t = fold_build_pointer_plus (sav, gpr)fold_build_pointer_plus_loc (((location_t) 0), sav, gpr); |
| 4725 | gimplify_assign (int_addr, t, pre_p); |
| 4726 | } |
| 4727 | if (needed_sseregs) |
| 4728 | { |
| 4729 | /* sse_addr = fpr + sav; */ |
| 4730 | t = fold_build_pointer_plus (sav, fpr)fold_build_pointer_plus_loc (((location_t) 0), sav, fpr); |
| 4731 | gimplify_assign (sse_addr, t, pre_p); |
| 4732 | } |
| 4733 | if (need_temp) |
| 4734 | { |
| 4735 | int i, prev_size = 0; |
| 4736 | tree temp = create_tmp_var (type, "va_arg_tmp"); |
| 4737 | |
| 4738 | /* addr = &temp; */ |
| 4739 | t = build1 (ADDR_EXPR, build_pointer_type (type), temp); |
| 4740 | gimplify_assign (addr, t, pre_p); |
| 4741 | |
| 4742 | for (i = 0; i < XVECLEN (container, 0)(((((container)->u.fld[0]).rt_rtvec))->num_elem); i++) |
| 4743 | { |
| 4744 | rtx slot = XVECEXP (container, 0, i)(((((container)->u.fld[0]).rt_rtvec))->elem[i]); |
| 4745 | rtx reg = XEXP (slot, 0)(((slot)->u.fld[0]).rt_rtx); |
| 4746 | machine_mode mode = GET_MODE (reg)((machine_mode) (reg)->mode); |
| 4747 | tree piece_type; |
| 4748 | tree addr_type; |
| 4749 | tree daddr_type; |
| 4750 | tree src_addr, src; |
| 4751 | int src_offset; |
| 4752 | tree dest_addr, dest; |
| 4753 | int cur_size = GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]); |
| 4754 | |
| 4755 | gcc_assert (prev_size <= INTVAL (XEXP (slot, 1)))((void)(!(prev_size <= (((((slot)->u.fld[1]).rt_rtx))-> u.hwint[0])) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4755, __FUNCTION__), 0 : 0)); |
| 4756 | prev_size = INTVAL (XEXP (slot, 1))(((((slot)->u.fld[1]).rt_rtx))->u.hwint[0]); |
| 4757 | if (prev_size + cur_size > size) |
| 4758 | { |
| 4759 | cur_size = size - prev_size; |
| 4760 | unsigned int nbits = cur_size * BITS_PER_UNIT(8); |
| 4761 | if (!int_mode_for_size (nbits, 1).exists (&mode)) |
| 4762 | mode = QImode(scalar_int_mode ((scalar_int_mode::from_int) E_QImode)); |
| 4763 | } |
| 4764 | piece_type = lang_hooks.types.type_for_mode (mode, 1); |
| 4765 | if (mode == GET_MODE (reg)((machine_mode) (reg)->mode)) |
| 4766 | addr_type = build_pointer_type (piece_type); |
| 4767 | else |
| 4768 | addr_type = build_pointer_type_for_mode (piece_type, ptr_mode, |
| 4769 | true); |
| 4770 | daddr_type = build_pointer_type_for_mode (piece_type, ptr_mode, |
| 4771 | true); |
| 4772 | |
| 4773 | if (SSE_REGNO_P (REGNO (reg))(((unsigned long) (((rhs_regno(reg)))) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) || ((unsigned long) (((rhs_regno(reg)))) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) || ((unsigned long) (((rhs_regno (reg)))) - (unsigned long) (52) <= (unsigned long) (67) - ( unsigned long) (52)))) |
| 4774 | { |
| 4775 | src_addr = sse_addr; |
| 4776 | src_offset = (REGNO (reg)(rhs_regno(reg)) - FIRST_SSE_REG20) * 16; |
| 4777 | } |
| 4778 | else |
| 4779 | { |
| 4780 | src_addr = int_addr; |
| 4781 | src_offset = REGNO (reg)(rhs_regno(reg)) * 8; |
| 4782 | } |
| 4783 | src_addr = fold_convert (addr_type, src_addr)fold_convert_loc (((location_t) 0), addr_type, src_addr); |
| 4784 | src_addr = fold_build_pointer_plus_hwi (src_addr, src_offset)fold_build_pointer_plus_hwi_loc (((location_t) 0), src_addr, src_offset ); |
| 4785 | |
| 4786 | dest_addr = fold_convert (daddr_type, addr)fold_convert_loc (((location_t) 0), daddr_type, addr); |
| 4787 | dest_addr = fold_build_pointer_plus_hwi (dest_addr, prev_size)fold_build_pointer_plus_hwi_loc (((location_t) 0), dest_addr, prev_size); |
| 4788 | if (cur_size == GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0])) |
| 4789 | { |
| 4790 | src = build_va_arg_indirect_ref (src_addr); |
| 4791 | dest = build_va_arg_indirect_ref (dest_addr); |
| 4792 | |
| 4793 | gimplify_assign (dest, src, pre_p); |
| 4794 | } |
| 4795 | else |
| 4796 | { |
| 4797 | tree copy |
| 4798 | = build_call_expr (builtin_decl_implicit (BUILT_IN_MEMCPY), |
| 4799 | 3, dest_addr, src_addr, |
| 4800 | size_int (cur_size)size_int_kind (cur_size, stk_sizetype)); |
| 4801 | gimplify_and_add (copy, pre_p); |
| 4802 | } |
| 4803 | prev_size += cur_size; |
| 4804 | } |
| 4805 | } |
| 4806 | |
| 4807 | if (needed_intregs) |
| 4808 | { |
| 4809 | t = build2 (PLUS_EXPR, TREE_TYPE (gpr)((contains_struct_check ((gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4809, __FUNCTION__))->typed.type), gpr, |
| 4810 | build_int_cst (TREE_TYPE (gpr)((contains_struct_check ((gpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4810, __FUNCTION__))->typed.type), needed_intregs * 8)); |
| 4811 | gimplify_assign (gpr, t, pre_p); |
| 4812 | /* The GPR save area guarantees only 8-byte alignment. */ |
| 4813 | if (!need_temp) |
| 4814 | type_align = MIN (type_align, 64)((type_align) < (64) ? (type_align) : (64)); |
| 4815 | } |
| 4816 | |
| 4817 | if (needed_sseregs) |
| 4818 | { |
| 4819 | t = build2 (PLUS_EXPR, TREE_TYPE (fpr)((contains_struct_check ((fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4819, __FUNCTION__))->typed.type), fpr, |
| 4820 | build_int_cst (TREE_TYPE (fpr)((contains_struct_check ((fpr), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4820, __FUNCTION__))->typed.type), needed_sseregs * 16)); |
| 4821 | gimplify_assign (unshare_expr (fpr), t, pre_p); |
| 4822 | } |
| 4823 | |
| 4824 | gimple_seq_add_stmt (pre_p, gimple_build_goto (lab_over)); |
| 4825 | |
| 4826 | gimple_seq_add_stmt (pre_p, gimple_build_label (lab_false)); |
| 4827 | } |
| 4828 | |
| 4829 | /* ... otherwise out of the overflow area. */ |
| 4830 | |
| 4831 | /* When we align parameter on stack for caller, if the parameter |
| 4832 | alignment is beyond MAX_SUPPORTED_STACK_ALIGNMENT, it will be |
| 4833 | aligned at MAX_SUPPORTED_STACK_ALIGNMENT. We will match callee |
| 4834 | here with caller. */ |
| 4835 | arg_boundary = ix86_function_arg_boundary (VOIDmode((void) 0, E_VOIDmode), type); |
| 4836 | if ((unsigned int) arg_boundary > MAX_SUPPORTED_STACK_ALIGNMENT(((unsigned int) 1 << 28) * 8)) |
| 4837 | arg_boundary = MAX_SUPPORTED_STACK_ALIGNMENT(((unsigned int) 1 << 28) * 8); |
| 4838 | |
| 4839 | /* Care for on-stack alignment if needed. */ |
| 4840 | if (arg_boundary <= 64 || size == 0) |
| 4841 | t = ovf; |
| 4842 | else |
| 4843 | { |
| 4844 | HOST_WIDE_INTlong align = arg_boundary / 8; |
| 4845 | t = fold_build_pointer_plus_hwi (ovf, align - 1)fold_build_pointer_plus_hwi_loc (((location_t) 0), ovf, align - 1); |
| 4846 | t = build2 (BIT_AND_EXPR, TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4846, __FUNCTION__))->typed.type), t, |
| 4847 | build_int_cst (TREE_TYPE (t)((contains_struct_check ((t), (TS_TYPED), "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4847, __FUNCTION__))->typed.type), -align)); |
| 4848 | } |
| 4849 | |
| 4850 | gimplify_expr (&t, pre_p, NULL__null, is_gimple_val, fb_rvalue); |
| 4851 | gimplify_assign (addr, t, pre_p); |
| 4852 | |
| 4853 | t = fold_build_pointer_plus_hwi (t, rsize * UNITS_PER_WORD)fold_build_pointer_plus_hwi_loc (((location_t) 0), t, rsize * (((global_options.x_ix86_isa_flags & (1UL << 1)) != 0) ? 8 : 4)); |
| 4854 | gimplify_assign (unshare_expr (ovf), t, pre_p); |
| 4855 | |
| 4856 | if (container) |
| 4857 | gimple_seq_add_stmt (pre_p, gimple_build_label (lab_over)); |
| 4858 | |
| 4859 | type = build_aligned_type (type, type_align); |
| 4860 | ptrtype = build_pointer_type_for_mode (type, ptr_mode, true); |
| 4861 | addr = fold_convert (ptrtype, addr)fold_convert_loc (((location_t) 0), ptrtype, addr); |
| 4862 | |
| 4863 | if (indirect_p) |
| 4864 | addr = build_va_arg_indirect_ref (addr); |
| 4865 | return build_va_arg_indirect_ref (addr); |
| 4866 | } |
| 4867 | |
| 4868 | /* Return true if OPNUM's MEM should be matched |
| 4869 | in movabs* patterns. */ |
| 4870 | |
| 4871 | bool |
| 4872 | ix86_check_movabs (rtx insn, int opnum) |
| 4873 | { |
| 4874 | rtx set, mem; |
| 4875 | |
| 4876 | set = PATTERN (insn); |
| 4877 | if (GET_CODE (set)((enum rtx_code) (set)->code) == PARALLEL) |
| 4878 | set = XVECEXP (set, 0, 0)(((((set)->u.fld[0]).rt_rtvec))->elem[0]); |
| 4879 | gcc_assert (GET_CODE (set) == SET)((void)(!(((enum rtx_code) (set)->code) == SET) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4879, __FUNCTION__), 0 : 0)); |
| 4880 | mem = XEXP (set, opnum)(((set)->u.fld[opnum]).rt_rtx); |
| 4881 | while (SUBREG_P (mem)(((enum rtx_code) (mem)->code) == SUBREG)) |
| 4882 | mem = SUBREG_REG (mem)(((mem)->u.fld[0]).rt_rtx); |
| 4883 | gcc_assert (MEM_P (mem))((void)(!((((enum rtx_code) (mem)->code) == MEM)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4883, __FUNCTION__), 0 : 0)); |
| 4884 | return volatile_ok || !MEM_VOLATILE_P (mem)(__extension__ ({ __typeof ((mem)) const _rtx = ((mem)); if ( ((enum rtx_code) (_rtx)->code) != MEM && ((enum rtx_code ) (_rtx)->code) != ASM_OPERANDS && ((enum rtx_code ) (_rtx)->code) != ASM_INPUT) rtl_check_failed_flag ("MEM_VOLATILE_P" , _rtx, "/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4884, __FUNCTION__); _rtx; })->volatil); |
| 4885 | } |
| 4886 | |
| 4887 | /* Return false if INSN contains a MEM with a non-default address space. */ |
| 4888 | bool |
| 4889 | ix86_check_no_addr_space (rtx insn) |
| 4890 | { |
| 4891 | subrtx_var_iterator::array_type array; |
| 4892 | FOR_EACH_SUBRTX_VAR (iter, array, PATTERN (insn), ALL)for (subrtx_var_iterator iter (array, PATTERN (insn), rtx_all_subrtx_bounds ); !iter.at_end (); iter.next ()) |
| 4893 | { |
| 4894 | rtx x = *iter; |
| 4895 | if (MEM_P (x)(((enum rtx_code) (x)->code) == MEM) && !ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (x))(((get_mem_attrs (x)->addrspace)) == 0)) |
| 4896 | return false; |
| 4897 | } |
| 4898 | return true; |
| 4899 | } |
| 4900 | |
| 4901 | /* Initialize the table of extra 80387 mathematical constants. */ |
| 4902 | |
| 4903 | static void |
| 4904 | init_ext_80387_constants (void) |
| 4905 | { |
| 4906 | static const char * cst[5] = |
| 4907 | { |
| 4908 | "0.3010299956639811952256464283594894482", /* 0: fldlg2 */ |
| 4909 | "0.6931471805599453094286904741849753009", /* 1: fldln2 */ |
| 4910 | "1.4426950408889634073876517827983434472", /* 2: fldl2e */ |
| 4911 | "3.3219280948873623478083405569094566090", /* 3: fldl2t */ |
| 4912 | "3.1415926535897932385128089594061862044", /* 4: fldpi */ |
| 4913 | }; |
| 4914 | int i; |
| 4915 | |
| 4916 | for (i = 0; i < 5; i++) |
| 4917 | { |
| 4918 | real_from_string (&ext_80387_constants_table[i], cst[i]); |
| 4919 | /* Ensure each constant is rounded to XFmode precision. */ |
| 4920 | real_convert (&ext_80387_constants_table[i], |
| 4921 | XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)), &ext_80387_constants_table[i]); |
| 4922 | } |
| 4923 | |
| 4924 | ext_80387_constants_init = 1; |
| 4925 | } |
| 4926 | |
| 4927 | /* Return non-zero if the constant is something that |
| 4928 | can be loaded with a special instruction. */ |
| 4929 | |
| 4930 | int |
| 4931 | standard_80387_constant_p (rtx x) |
| 4932 | { |
| 4933 | machine_mode mode = GET_MODE (x)((machine_mode) (x)->mode); |
| 4934 | |
| 4935 | const REAL_VALUE_TYPEstruct real_value *r; |
| 4936 | |
| 4937 | if (!(CONST_DOUBLE_P (x)(((enum rtx_code) (x)->code) == CONST_DOUBLE) && X87_FLOAT_MODE_P (mode)(((global_options.x_target_flags & (1U << 1)) != 0) && ((mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_SFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_DFmode)) || (mode) == (scalar_float_mode ((scalar_float_mode ::from_int) E_XFmode)))))) |
| 4938 | return -1; |
| 4939 | |
| 4940 | if (x == CONST0_RTX (mode)(const_tiny_rtx[0][(int) (mode)])) |
| 4941 | return 1; |
| 4942 | if (x == CONST1_RTX (mode)(const_tiny_rtx[1][(int) (mode)])) |
| 4943 | return 2; |
| 4944 | |
| 4945 | r = CONST_DOUBLE_REAL_VALUE (x)((const struct real_value *) (&(x)->u.rv)); |
| 4946 | |
| 4947 | /* For XFmode constants, try to find a special 80387 instruction when |
| 4948 | optimizing for size or on those CPUs that benefit from them. */ |
| 4949 | if (mode == XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode)) |
| 4950 | && (optimize_function_for_size_p (cfun(cfun + 0)) || TARGET_EXT_80387_CONSTANTSix86_tune_features[X86_TUNE_EXT_80387_CONSTANTS])) |
| 4951 | { |
| 4952 | int i; |
| 4953 | |
| 4954 | if (! ext_80387_constants_init) |
| 4955 | init_ext_80387_constants (); |
| 4956 | |
| 4957 | for (i = 0; i < 5; i++) |
| 4958 | if (real_identical (r, &ext_80387_constants_table[i])) |
| 4959 | return i + 3; |
| 4960 | } |
| 4961 | |
| 4962 | /* Load of the constant -0.0 or -1.0 will be split as |
| 4963 | fldz;fchs or fld1;fchs sequence. */ |
| 4964 | if (real_isnegzero (r)) |
| 4965 | return 8; |
| 4966 | if (real_identical (r, &dconstm1)) |
| 4967 | return 9; |
| 4968 | |
| 4969 | return 0; |
| 4970 | } |
| 4971 | |
| 4972 | /* Return the opcode of the special instruction to be used to load |
| 4973 | the constant X. */ |
| 4974 | |
| 4975 | const char * |
| 4976 | standard_80387_constant_opcode (rtx x) |
| 4977 | { |
| 4978 | switch (standard_80387_constant_p (x)) |
| 4979 | { |
| 4980 | case 1: |
| 4981 | return "fldz"; |
| 4982 | case 2: |
| 4983 | return "fld1"; |
| 4984 | case 3: |
| 4985 | return "fldlg2"; |
| 4986 | case 4: |
| 4987 | return "fldln2"; |
| 4988 | case 5: |
| 4989 | return "fldl2e"; |
| 4990 | case 6: |
| 4991 | return "fldl2t"; |
| 4992 | case 7: |
| 4993 | return "fldpi"; |
| 4994 | case 8: |
| 4995 | case 9: |
| 4996 | return "#"; |
| 4997 | default: |
| 4998 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 4998, __FUNCTION__)); |
| 4999 | } |
| 5000 | } |
| 5001 | |
| 5002 | /* Return the CONST_DOUBLE representing the 80387 constant that is |
| 5003 | loaded by the specified special instruction. The argument IDX |
| 5004 | matches the return value from standard_80387_constant_p. */ |
| 5005 | |
| 5006 | rtx |
| 5007 | standard_80387_constant_rtx (int idx) |
| 5008 | { |
| 5009 | int i; |
| 5010 | |
| 5011 | if (! ext_80387_constants_init) |
| 5012 | init_ext_80387_constants (); |
| 5013 | |
| 5014 | switch (idx) |
| 5015 | { |
| 5016 | case 3: |
| 5017 | case 4: |
| 5018 | case 5: |
| 5019 | case 6: |
| 5020 | case 7: |
| 5021 | i = idx - 3; |
| 5022 | break; |
| 5023 | |
| 5024 | default: |
| 5025 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5025, __FUNCTION__)); |
| 5026 | } |
| 5027 | |
| 5028 | return const_double_from_real_value (ext_80387_constants_table[i], |
| 5029 | XFmode(scalar_float_mode ((scalar_float_mode::from_int) E_XFmode))); |
| 5030 | } |
| 5031 | |
| 5032 | /* Return 1 if X is all bits 0 and 2 if X is all bits 1 |
| 5033 | in supported SSE/AVX vector mode. */ |
| 5034 | |
| 5035 | int |
| 5036 | standard_sse_constant_p (rtx x, machine_mode pred_mode) |
| 5037 | { |
| 5038 | machine_mode mode; |
| 5039 | |
| 5040 | if (!TARGET_SSE((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) |
| 5041 | return 0; |
| 5042 | |
| 5043 | mode = GET_MODE (x)((machine_mode) (x)->mode); |
| 5044 | |
| 5045 | if (x == const0_rtx(const_int_rtx[64]) || const0_operand (x, mode)) |
| 5046 | return 1; |
| 5047 | |
| 5048 | if (x == constm1_rtx(const_int_rtx[64 -1]) || vector_all_ones_operand (x, mode)) |
| 5049 | { |
| 5050 | /* VOIDmode integer constant, get mode from the predicate. */ |
| 5051 | if (mode == VOIDmode((void) 0, E_VOIDmode)) |
| 5052 | mode = pred_mode; |
| 5053 | |
| 5054 | switch (GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0])) |
| 5055 | { |
| 5056 | case 64: |
| 5057 | if (TARGET_AVX512F((global_options.x_ix86_isa_flags & (1UL << 15)) != 0)) |
| 5058 | return 2; |
| 5059 | break; |
| 5060 | case 32: |
| 5061 | if (TARGET_AVX2((global_options.x_ix86_isa_flags & (1UL << 9)) != 0 )) |
| 5062 | return 2; |
| 5063 | break; |
| 5064 | case 16: |
| 5065 | if (TARGET_SSE2((global_options.x_ix86_isa_flags & (1UL << 51)) != 0)) |
| 5066 | return 2; |
| 5067 | break; |
| 5068 | case 0: |
| 5069 | /* VOIDmode */ |
| 5070 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5070, __FUNCTION__)); |
| 5071 | default: |
| 5072 | break; |
| 5073 | } |
| 5074 | } |
| 5075 | |
| 5076 | return 0; |
| 5077 | } |
| 5078 | |
| 5079 | /* Return the opcode of the special instruction to be used to load |
| 5080 | the constant operands[1] into operands[0]. */ |
| 5081 | |
| 5082 | const char * |
| 5083 | standard_sse_constant_opcode (rtx_insn *insn, rtx *operands) |
| 5084 | { |
| 5085 | machine_mode mode; |
| 5086 | rtx x = operands[1]; |
| 5087 | |
| 5088 | gcc_assert (TARGET_SSE)((void)(!(((global_options.x_ix86_isa_flags & (1UL << 50)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5088, __FUNCTION__), 0 : 0)); |
| 5089 | |
| 5090 | mode = GET_MODE (x)((machine_mode) (x)->mode); |
| 5091 | |
| 5092 | if (x == const0_rtx(const_int_rtx[64]) || const0_operand (x, mode)) |
| 5093 | { |
| 5094 | switch (get_attr_mode (insn)) |
| 5095 | { |
| 5096 | case MODE_TI: |
| 5097 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5098 | return "%vpxor\t%0, %d0"; |
| 5099 | /* FALLTHRU */ |
| 5100 | case MODE_XI: |
| 5101 | case MODE_OI: |
| 5102 | if (EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5103 | return (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5104 | ? "vpxord\t%x0, %x0, %x0" |
| 5105 | : "vpxord\t%g0, %g0, %g0"); |
| 5106 | return "vpxor\t%x0, %x0, %x0"; |
| 5107 | |
| 5108 | case MODE_V2DF: |
| 5109 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5110 | return "%vxorpd\t%0, %d0"; |
| 5111 | /* FALLTHRU */ |
| 5112 | case MODE_V8DF: |
| 5113 | case MODE_V4DF: |
| 5114 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5115 | return "vxorpd\t%x0, %x0, %x0"; |
| 5116 | else if (TARGET_AVX512DQ((global_options.x_ix86_isa_flags & (1UL << 13)) != 0)) |
| 5117 | return (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5118 | ? "vxorpd\t%x0, %x0, %x0" |
| 5119 | : "vxorpd\t%g0, %g0, %g0"); |
| 5120 | else |
| 5121 | return (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5122 | ? "vpxorq\t%x0, %x0, %x0" |
| 5123 | : "vpxorq\t%g0, %g0, %g0"); |
| 5124 | |
| 5125 | case MODE_V4SF: |
| 5126 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5127 | return "%vxorps\t%0, %d0"; |
| 5128 | /* FALLTHRU */ |
| 5129 | case MODE_V16SF: |
| 5130 | case MODE_V8SF: |
| 5131 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5132 | return "vxorps\t%x0, %x0, %x0"; |
| 5133 | else if (TARGET_AVX512DQ((global_options.x_ix86_isa_flags & (1UL << 13)) != 0)) |
| 5134 | return (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5135 | ? "vxorps\t%x0, %x0, %x0" |
| 5136 | : "vxorps\t%g0, %g0, %g0"); |
| 5137 | else |
| 5138 | return (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5139 | ? "vpxord\t%x0, %x0, %x0" |
| 5140 | : "vpxord\t%g0, %g0, %g0"); |
| 5141 | |
| 5142 | default: |
| 5143 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5143, __FUNCTION__)); |
| 5144 | } |
| 5145 | } |
| 5146 | else if (x == constm1_rtx(const_int_rtx[64 -1]) || vector_all_ones_operand (x, mode)) |
| 5147 | { |
| 5148 | enum attr_mode insn_mode = get_attr_mode (insn); |
| 5149 | |
| 5150 | switch (insn_mode) |
| 5151 | { |
| 5152 | case MODE_XI: |
| 5153 | case MODE_V8DF: |
| 5154 | case MODE_V16SF: |
| 5155 | gcc_assert (TARGET_AVX512F)((void)(!(((global_options.x_ix86_isa_flags & (1UL << 15)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5155, __FUNCTION__), 0 : 0)); |
| 5156 | return "vpternlogd\t{$0xFF, %g0, %g0, %g0|%g0, %g0, %g0, 0xFF}"; |
| 5157 | |
| 5158 | case MODE_OI: |
| 5159 | case MODE_V4DF: |
| 5160 | case MODE_V8SF: |
| 5161 | gcc_assert (TARGET_AVX2)((void)(!(((global_options.x_ix86_isa_flags & (1UL << 9)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5161, __FUNCTION__), 0 : 0)); |
| 5162 | /* FALLTHRU */ |
| 5163 | case MODE_TI: |
| 5164 | case MODE_V2DF: |
| 5165 | case MODE_V4SF: |
| 5166 | gcc_assert (TARGET_SSE2)((void)(!(((global_options.x_ix86_isa_flags & (1UL << 51)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5166, __FUNCTION__), 0 : 0)); |
| 5167 | if (!EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))) |
| 5168 | return (TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ) |
| 5169 | ? "vpcmpeqd\t%0, %0, %0" |
| 5170 | : "pcmpeqd\t%0, %0"); |
| 5171 | else if (TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0)) |
| 5172 | return "vpternlogd\t{$0xFF, %0, %0, %0|%0, %0, %0, 0xFF}"; |
| 5173 | else |
| 5174 | return "vpternlogd\t{$0xFF, %g0, %g0, %g0|%g0, %g0, %g0, 0xFF}"; |
| 5175 | |
| 5176 | default: |
| 5177 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5177, __FUNCTION__)); |
| 5178 | } |
| 5179 | } |
| 5180 | |
| 5181 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5181, __FUNCTION__)); |
| 5182 | } |
| 5183 | |
| 5184 | /* Returns true if INSN can be transformed from a memory load |
| 5185 | to a supported FP constant load. */ |
| 5186 | |
| 5187 | bool |
| 5188 | ix86_standard_x87sse_constant_load_p (const rtx_insn *insn, rtx dst) |
| 5189 | { |
| 5190 | rtx src = find_constant_src (insn); |
| 5191 | |
| 5192 | gcc_assert (REG_P (dst))((void)(!((((enum rtx_code) (dst)->code) == REG)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5192, __FUNCTION__), 0 : 0)); |
| 5193 | |
| 5194 | if (src == NULL__null |
| 5195 | || (SSE_REGNO_P (REGNO (dst))(((unsigned long) (((rhs_regno(dst)))) - (unsigned long) (20) <= (unsigned long) (27) - (unsigned long) (20)) || ((unsigned long) (((rhs_regno(dst)))) - (unsigned long) (44) <= (unsigned long) (51) - (unsigned long) (44)) || ((unsigned long) (((rhs_regno (dst)))) - (unsigned long) (52) <= (unsigned long) (67) - ( unsigned long) (52))) |
| 5196 | && standard_sse_constant_p (src, GET_MODE (dst)((machine_mode) (dst)->mode)) != 1) |
| 5197 | || (STACK_REGNO_P (REGNO (dst))((unsigned long) (((rhs_regno(dst)))) - (unsigned long) (8) <= (unsigned long) (15) - (unsigned long) (8)) |
| 5198 | && standard_80387_constant_p (src) < 1)) |
| 5199 | return false; |
| 5200 | |
| 5201 | return true; |
| 5202 | } |
| 5203 | |
| 5204 | /* Predicate for pre-reload splitters with associated instructions, |
| 5205 | which can match any time before the split1 pass (usually combine), |
| 5206 | then are unconditionally split in that pass and should not be |
| 5207 | matched again afterwards. */ |
| 5208 | |
| 5209 | bool |
| 5210 | ix86_pre_reload_split (void) |
| 5211 | { |
| 5212 | return (can_create_pseudo_p ()(!reload_in_progress && !reload_completed) |
| 5213 | && !(cfun(cfun + 0)->curr_properties & PROP_rtl_split_insns(1 << 17))); |
| 5214 | } |
| 5215 | |
| 5216 | /* Return the opcode of the TYPE_SSEMOV instruction. To move from |
| 5217 | or to xmm16-xmm31/ymm16-ymm31 registers, we either require |
| 5218 | TARGET_AVX512VL or it is a register to register move which can |
| 5219 | be done with zmm register move. */ |
| 5220 | |
| 5221 | static const char * |
| 5222 | ix86_get_ssemov (rtx *operands, unsigned size, |
| 5223 | enum attr_mode insn_mode, machine_mode mode) |
| 5224 | { |
| 5225 | char buf[128]; |
| 5226 | bool misaligned_p = (misaligned_operand (operands[0], mode) |
| 5227 | || misaligned_operand (operands[1], mode)); |
| 5228 | bool evex_reg_p = (size == 64 |
| 5229 | || EXT_REX_SSE_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52))) |
| 5230 | || EXT_REX_SSE_REG_P (operands[1])((((enum rtx_code) (operands[1])->code) == REG) && ((unsigned long) (((rhs_regno(operands[1])))) - (unsigned long ) (52) <= (unsigned long) (67) - (unsigned long) (52)))); |
| 5231 | machine_mode scalar_mode; |
| 5232 | |
| 5233 | const char *opcode = NULL__null; |
| 5234 | enum |
| 5235 | { |
| 5236 | opcode_int, |
| 5237 | opcode_float, |
| 5238 | opcode_double |
| 5239 | } type = opcode_int; |
| 5240 | |
| 5241 | switch (insn_mode) |
| 5242 | { |
| 5243 | case MODE_V16SF: |
| 5244 | case MODE_V8SF: |
| 5245 | case MODE_V4SF: |
| 5246 | scalar_mode = E_SFmode; |
| 5247 | type = opcode_float; |
| 5248 | break; |
| 5249 | case MODE_V8DF: |
| 5250 | case MODE_V4DF: |
| 5251 | case MODE_V2DF: |
| 5252 | scalar_mode = E_DFmode; |
| 5253 | type = opcode_double; |
| 5254 | break; |
| 5255 | case MODE_XI: |
| 5256 | case MODE_OI: |
| 5257 | case MODE_TI: |
| 5258 | scalar_mode = GET_MODE_INNER (mode)(mode_to_inner (mode)); |
| 5259 | break; |
| 5260 | default: |
| 5261 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5261, __FUNCTION__)); |
| 5262 | } |
| 5263 | |
| 5264 | /* NB: To move xmm16-xmm31/ymm16-ymm31 registers without AVX512VL, |
| 5265 | we can only use zmm register move without memory operand. */ |
| 5266 | if (evex_reg_p |
| 5267 | && !TARGET_AVX512VL((global_options.x_ix86_isa_flags & (1UL << 20)) != 0) |
| 5268 | && GET_MODE_SIZE (mode)((unsigned short) mode_to_bytes (mode).coeffs[0]) < 64) |
| 5269 | { |
| 5270 | /* NB: Even though ix86_hard_regno_mode_ok doesn't allow |
| 5271 | xmm16-xmm31 nor ymm16-ymm31 in 128/256 bit modes when |
| 5272 | AVX512VL is disabled, LRA can still generate reg to |
| 5273 | reg moves with xmm16-xmm31 and ymm16-ymm31 in 128/256 bit |
| 5274 | modes. */ |
| 5275 | if (memory_operand (operands[0], mode) |
| 5276 | || memory_operand (operands[1], mode)) |
| 5277 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5277, __FUNCTION__)); |
| 5278 | size = 64; |
| 5279 | switch (type) |
| 5280 | { |
| 5281 | case opcode_int: |
| 5282 | opcode = misaligned_p ? "vmovdqu32" : "vmovdqa32"; |
| 5283 | break; |
| 5284 | case opcode_float: |
| 5285 | opcode = misaligned_p ? "vmovups" : "vmovaps"; |
| 5286 | break; |
| 5287 | case opcode_double: |
| 5288 | opcode = misaligned_p ? "vmovupd" : "vmovapd"; |
| 5289 | break; |
| 5290 | } |
| 5291 | } |
| 5292 | else if (SCALAR_FLOAT_MODE_P (scalar_mode)(((enum mode_class) mode_class[scalar_mode]) == MODE_FLOAT || ((enum mode_class) mode_class[scalar_mode]) == MODE_DECIMAL_FLOAT )) |
| 5293 | { |
| 5294 | switch (scalar_mode) |
| 5295 | { |
| 5296 | case E_SFmode: |
| 5297 | opcode = misaligned_p ? "%vmovups" : "%vmovaps"; |
| 5298 | break; |
| 5299 | case E_DFmode: |
| 5300 | opcode = misaligned_p ? "%vmovupd" : "%vmovapd"; |
| 5301 | break; |
| 5302 | case E_TFmode: |
| 5303 | if (evex_reg_p) |
| 5304 | opcode = misaligned_p ? "vmovdqu64" : "vmovdqa64"; |
| 5305 | else |
| 5306 | opcode = misaligned_p ? "%vmovdqu" : "%vmovdqa"; |
| 5307 | break; |
| 5308 | default: |
| 5309 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5309, __FUNCTION__)); |
| 5310 | } |
| 5311 | } |
| 5312 | else if (SCALAR_INT_MODE_P (scalar_mode)(((enum mode_class) mode_class[scalar_mode]) == MODE_INT || ( (enum mode_class) mode_class[scalar_mode]) == MODE_PARTIAL_INT )) |
| 5313 | { |
| 5314 | switch (scalar_mode) |
| 5315 | { |
| 5316 | case E_QImode: |
| 5317 | if (evex_reg_p) |
| 5318 | opcode = (misaligned_p |
| 5319 | ? (TARGET_AVX512BW((global_options.x_ix86_isa_flags & (1UL << 11)) != 0) |
| 5320 | ? "vmovdqu8" |
| 5321 | : "vmovdqu64") |
| 5322 | : "vmovdqa64"); |
| 5323 | else |
| 5324 | opcode = (misaligned_p |
| 5325 | ? (TARGET_AVX512BW((global_options.x_ix86_isa_flags & (1UL << 11)) != 0) |
| 5326 | ? "vmovdqu8" |
| 5327 | : "%vmovdqu") |
| 5328 | : "%vmovdqa"); |
| 5329 | break; |
| 5330 | case E_HImode: |
| 5331 | if (evex_reg_p) |
| 5332 | opcode = (misaligned_p |
| 5333 | ? (TARGET_AVX512BW((global_options.x_ix86_isa_flags & (1UL << 11)) != 0) |
| 5334 | ? "vmovdqu16" |
| 5335 | : "vmovdqu64") |
| 5336 | : "vmovdqa64"); |
| 5337 | else |
| 5338 | opcode = (misaligned_p |
| 5339 | ? (TARGET_AVX512BW((global_options.x_ix86_isa_flags & (1UL << 11)) != 0) |
| 5340 | ? "vmovdqu16" |
| 5341 | : "%vmovdqu") |
| 5342 | : "%vmovdqa"); |
| 5343 | break; |
| 5344 | case E_SImode: |
| 5345 | if (evex_reg_p) |
| 5346 | opcode = misaligned_p ? "vmovdqu32" : "vmovdqa32"; |
| 5347 | else |
| 5348 | opcode = misaligned_p ? "%vmovdqu" : "%vmovdqa"; |
| 5349 | break; |
| 5350 | case E_DImode: |
| 5351 | case E_TImode: |
| 5352 | case E_OImode: |
| 5353 | if (evex_reg_p) |
| 5354 | opcode = misaligned_p ? "vmovdqu64" : "vmovdqa64"; |
| 5355 | else |
| 5356 | opcode = misaligned_p ? "%vmovdqu" : "%vmovdqa"; |
| 5357 | break; |
| 5358 | case E_XImode: |
| 5359 | opcode = misaligned_p ? "vmovdqu64" : "vmovdqa64"; |
| 5360 | break; |
| 5361 | default: |
| 5362 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5362, __FUNCTION__)); |
| 5363 | } |
| 5364 | } |
| 5365 | else |
| 5366 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5366, __FUNCTION__)); |
| 5367 | |
| 5368 | switch (size) |
| 5369 | { |
| 5370 | case 64: |
| 5371 | snprintf (buf, sizeof (buf), "%s\t{%%g1, %%g0|%%g0, %%g1}", |
| 5372 | opcode); |
| 5373 | break; |
| 5374 | case 32: |
| 5375 | snprintf (buf, sizeof (buf), "%s\t{%%t1, %%t0|%%t0, %%t1}", |
| 5376 | opcode); |
| 5377 | break; |
| 5378 | case 16: |
| 5379 | snprintf (buf, sizeof (buf), "%s\t{%%x1, %%x0|%%x0, %%x1}", |
| 5380 | opcode); |
| 5381 | break; |
| 5382 | default: |
| 5383 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5383, __FUNCTION__)); |
| 5384 | } |
| 5385 | output_asm_insn (buf, operands); |
| 5386 | return ""; |
| 5387 | } |
| 5388 | |
| 5389 | /* Return the template of the TYPE_SSEMOV instruction to move |
| 5390 | operands[1] into operands[0]. */ |
| 5391 | |
| 5392 | const char * |
| 5393 | ix86_output_ssemov (rtx_insn *insn, rtx *operands) |
| 5394 | { |
| 5395 | machine_mode mode = GET_MODE (operands[0])((machine_mode) (operands[0])->mode); |
| 5396 | if (get_attr_type (insn) != TYPE_SSEMOV |
| 5397 | || mode != GET_MODE (operands[1])((machine_mode) (operands[1])->mode)) |
| 5398 | gcc_unreachable ()(fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5398, __FUNCTION__)); |
| 5399 | |
| 5400 | enum attr_mode insn_mode = get_attr_mode (insn); |
| 5401 | |
| 5402 | switch (insn_mode) |
| 5403 | { |
| 5404 | case MODE_XI: |
| 5405 | case MODE_V8DF: |
| 5406 | case MODE_V16SF: |
| 5407 | return ix86_get_ssemov (operands, 64, insn_mode, mode); |
| 5408 | |
| 5409 | case MODE_OI: |
| 5410 | case MODE_V4DF: |
| 5411 | case MODE_V8SF: |
| 5412 | return ix86_get_ssemov (operands, 32, insn_mode, mode); |
| 5413 | |
| 5414 | case MODE_TI: |
| 5415 | case MODE_V2DF: |
| 5416 | case MODE_V4SF: |
| 5417 | return ix86_get_ssemov (operands, 16, insn_mode, mode); |
| 5418 | |
| 5419 | case MODE_DI: |
| 5420 | /* Handle broken assemblers that require movd instead of movq. */ |
| 5421 | if (!HAVE_AS_IX86_INTERUNIT_MOVQ1 |
| 5422 | && (GENERAL_REG_P (operands[0])((((enum rtx_code) (operands[0])->code) == REG) && ((((unsigned long) (((rhs_regno(operands[0])))) - (unsigned long ) (0) <= (unsigned long) (7) - (unsigned long) (0))) || (( unsigned long) (((rhs_regno(operands[0])))) - (unsigned long) (36) <= (unsigned long) (43) - (unsigned long) (36)))) |
| 5423 | || GENERAL_REG_P (operands[1])((((enum rtx_code) (operands[1])->code) == REG) && ((((unsigned long) (((rhs_regno(operands[1])))) - (unsigned long ) (0) <= (unsigned long) (7) - (unsigned long) (0))) || (( unsigned long) (((rhs_regno(operands[1])))) - (unsigned long) (36) <= (unsigned long) (43) - (unsigned long) (36)))))) |
| 5424 | return "%vmovd\t{%1, %0|%0, %1}"; |
| 5425 | else |
| 5426 | return "%vmovq\t{%1, %0|%0, %1}"; |
| 5427 | |
| 5428 | case MODE_SI: |
| 5429 | return "%vmovd\t{%1, %0|%0, %1}"; |
| 5430 | |
| 5431 | case MODE_DF: |
| 5432 | if (TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ) && REG_P (operands[0])(((enum rtx_code) (operands[0])->code) == REG) && REG_P (operands[1])(((enum rtx_code) (operands[1])->code) == REG)) |
| 5433 | return "vmovsd\t{%d1, %0|%0, %d1}"; |
| 5434 | else |
| 5435 | return "%vmovsd\t{%1, %0|%0, %1}"; |
| 5436 | |
| 5437 | case MODE_SF: |
| 5438 | if (TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ) && REG_P (operands[0])(((enum rtx_code) (operands[0])->code) == REG) && REG_P (operands[1])(((enum rtx_code) (operands[1])->code) == REG)) |
| 5439 | return "vmovss\t{%d1, %0|%0, %d1}"; |
| 5440 | else |
| 5441 | return "%vmovss\t{%1, %0|%0, %1}"; |
| 5442 | |
| 5443 | case MODE_V1DF: |
| 5444 | gcc_assert (!TARGET_AVX)((void)(!(!((global_options.x_ix86_isa_flags & (1UL << 8)) != 0)) ? fancy_abort ("/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/build/gcc/config/i386/i386.c" , 5444, __FUNCTION__), 0 : 0)); |
| 5445 | return "movlpd\t{%1, %0|%0, %1}"; |
| 5446 | |
| 5447 | case MODE_V2SF: |
| 5448 | if (TARGET_AVX((global_options.x_ix86_isa_flags & (1UL << 8)) != 0 ) && REG_P (operands[0])(((enum rtx_code) (operands[0])->code) == REG)) |
| 5449 | return "vmovlps\t{%1, %d0|%d0, %1}"; |
| 5450 | else |
| 5451 | return "%vmovlps\t{%1, %0|%0, %1}"; |
| 5452 | |