Mercurial > hg > CbC > CbC_gcc
annotate gcc/optabs.h @ 127:4c56639505ff
fix function.c and add CbC-example Makefile
| author | mir3636 |
|---|---|
| date | Wed, 11 Apr 2018 18:46:58 +0900 |
| parents | 04ced10e8804 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions for code generation pass of GNU compiler. |
| 111 | 2 Copyright (C) 2001-2017 Free Software Foundation, Inc. |
| 0 | 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 #ifndef GCC_OPTABS_H | |
| 21 #define GCC_OPTABS_H | |
| 22 | |
| 111 | 23 #include "optabs-query.h" |
| 24 #include "optabs-libfuncs.h" | |
| 0 | 25 |
| 111 | 26 /* Generate code for a widening multiply. */ |
| 27 extern rtx expand_widening_mult (machine_mode, rtx, rtx, rtx, int, optab); | |
| 0 | 28 |
| 111 | 29 /* Describes the type of an expand_operand. Each value is associated |
| 30 with a create_*_operand function; see the comments above those | |
| 31 functions for details. */ | |
| 32 enum expand_operand_type { | |
| 33 EXPAND_FIXED, | |
| 34 EXPAND_OUTPUT, | |
| 35 EXPAND_INPUT, | |
| 36 EXPAND_CONVERT_TO, | |
| 37 EXPAND_CONVERT_FROM, | |
| 38 EXPAND_ADDRESS, | |
| 39 EXPAND_INTEGER | |
| 0 | 40 }; |
| 41 | |
| 111 | 42 /* Information about an operand for instruction expansion. */ |
| 43 struct expand_operand { | |
| 44 /* The type of operand. */ | |
| 45 ENUM_BITFIELD (expand_operand_type) type : 8; | |
| 0 | 46 |
| 111 | 47 /* True if any conversion should treat VALUE as being unsigned |
| 48 rather than signed. Only meaningful for certain types. */ | |
| 49 unsigned int unsigned_p : 1; | |
| 0 | 50 |
| 111 | 51 /* Is the target operand. */ |
| 52 unsigned int target : 1; | |
| 0 | 53 |
| 111 | 54 /* Unused; available for future use. */ |
| 55 unsigned int unused : 6; | |
| 0 | 56 |
| 111 | 57 /* The mode passed to the convert_*_operand function. It has a |
| 58 type-dependent meaning. */ | |
| 59 ENUM_BITFIELD (machine_mode) mode : 16; | |
| 0 | 60 |
| 111 | 61 /* The value of the operand. */ |
| 62 rtx value; | |
| 0 | 63 }; |
| 64 | |
| 111 | 65 /* Initialize OP with the given fields. Initialise the other fields |
| 66 to their default values. */ | |
| 67 | |
| 68 static inline void | |
| 69 create_expand_operand (struct expand_operand *op, | |
| 70 enum expand_operand_type type, | |
| 71 rtx value, machine_mode mode, | |
| 72 bool unsigned_p) | |
| 73 { | |
| 74 op->type = type; | |
| 75 op->unsigned_p = unsigned_p; | |
| 76 op->unused = 0; | |
| 77 op->mode = mode; | |
| 78 op->value = value; | |
| 79 } | |
| 80 | |
| 81 /* Make OP describe an operand that must use rtx X, even if X is volatile. */ | |
| 82 | |
| 83 static inline void | |
| 84 create_fixed_operand (struct expand_operand *op, rtx x) | |
| 85 { | |
| 86 create_expand_operand (op, EXPAND_FIXED, x, VOIDmode, false); | |
| 87 } | |
| 0 | 88 |
| 111 | 89 /* Make OP describe an output operand that must have mode MODE. |
| 90 X, if nonnull, is a suggestion for where the output should be stored. | |
| 91 It is OK for VALUE to be inconsistent with MODE, although it will just | |
| 92 be ignored in that case. */ | |
| 93 | |
| 94 static inline void | |
| 95 create_output_operand (struct expand_operand *op, rtx x, | |
| 96 machine_mode mode) | |
| 97 { | |
| 98 create_expand_operand (op, EXPAND_OUTPUT, x, mode, false); | |
| 99 } | |
| 0 | 100 |
| 111 | 101 /* Make OP describe an input operand that must have mode MODE and |
| 102 value VALUE; MODE cannot be VOIDmode. The backend may request that | |
| 103 VALUE be copied into a different kind of rtx before being passed | |
| 104 as an operand. */ | |
| 105 | |
| 106 static inline void | |
| 107 create_input_operand (struct expand_operand *op, rtx value, | |
| 108 machine_mode mode) | |
| 109 { | |
| 110 create_expand_operand (op, EXPAND_INPUT, value, mode, false); | |
| 111 } | |
| 112 | |
| 113 /* Like create_input_operand, except that VALUE must first be converted | |
| 114 to mode MODE. UNSIGNED_P says whether VALUE is unsigned. */ | |
| 0 | 115 |
| 111 | 116 static inline void |
| 117 create_convert_operand_to (struct expand_operand *op, rtx value, | |
| 118 machine_mode mode, bool unsigned_p) | |
| 119 { | |
| 120 create_expand_operand (op, EXPAND_CONVERT_TO, value, mode, unsigned_p); | |
| 121 } | |
| 0 | 122 |
| 111 | 123 /* Make OP describe an input operand that should have the same value |
| 124 as VALUE, after any mode conversion that the backend might request. | |
| 125 If VALUE is a CONST_INT, it should be treated as having mode MODE. | |
| 126 UNSIGNED_P says whether VALUE is unsigned. */ | |
| 0 | 127 |
| 111 | 128 static inline void |
| 129 create_convert_operand_from (struct expand_operand *op, rtx value, | |
| 130 machine_mode mode, bool unsigned_p) | |
| 131 { | |
| 132 create_expand_operand (op, EXPAND_CONVERT_FROM, value, mode, unsigned_p); | |
| 133 } | |
| 0 | 134 |
| 135 | |
| 111 | 136 /* Make OP describe an input Pmode address operand. VALUE is the value |
| 137 of the address, but it may need to be converted to Pmode first. */ | |
| 0 | 138 |
| 111 | 139 static inline void |
| 140 create_address_operand (struct expand_operand *op, rtx value) | |
| 141 { | |
| 142 create_expand_operand (op, EXPAND_ADDRESS, value, Pmode, false); | |
| 143 } | |
| 0 | 144 |
| 111 | 145 /* Make OP describe an input operand that has value INTVAL and that has |
| 146 no inherent mode. This function should only be used for operands that | |
| 147 are always expand-time constants. The backend may request that INTVAL | |
| 148 be copied into a different kind of rtx, but it must specify the mode | |
| 149 of that rtx if so. */ | |
| 0 | 150 |
| 111 | 151 static inline void |
| 152 create_integer_operand (struct expand_operand *op, HOST_WIDE_INT intval) | |
| 153 { | |
| 154 create_expand_operand (op, EXPAND_INTEGER, GEN_INT (intval), VOIDmode, false); | |
| 155 } | |
| 156 | |
| 0 | 157 |
| 111 | 158 /* Passed to expand_simple_binop and expand_binop to say which options |
| 159 to try to use if the requested operation can't be open-coded on the | |
| 160 requisite mode. Either OPTAB_LIB or OPTAB_LIB_WIDEN says try using | |
| 161 a library call. Either OPTAB_WIDEN or OPTAB_LIB_WIDEN says try | |
| 162 using a wider mode. OPTAB_MUST_WIDEN says try widening and don't | |
| 163 try anything else. */ | |
| 0 | 164 |
| 111 | 165 enum optab_methods |
| 166 { | |
| 167 OPTAB_DIRECT, | |
| 168 OPTAB_LIB, | |
| 169 OPTAB_WIDEN, | |
| 170 OPTAB_LIB_WIDEN, | |
| 171 OPTAB_MUST_WIDEN | |
| 0 | 172 }; |
| 173 | |
| 111 | 174 extern rtx expand_widen_pattern_expr (struct separate_ops *, rtx , rtx , rtx, |
| 175 rtx, int); | |
| 176 extern rtx expand_ternary_op (machine_mode mode, optab ternary_optab, | |
| 0 | 177 rtx op0, rtx op1, rtx op2, rtx target, |
| 178 int unsignedp); | |
| 111 | 179 extern rtx simplify_expand_binop (machine_mode mode, optab binoptab, |
| 180 rtx op0, rtx op1, rtx target, int unsignedp, | |
| 181 enum optab_methods methods); | |
| 182 extern bool force_expand_binop (machine_mode, optab, rtx, rtx, rtx, int, | |
| 183 enum optab_methods); | |
| 184 | |
| 185 /* Generate code for a simple binary or unary operation. "Simple" in | |
| 186 this case means "can be unambiguously described by a (mode, code) | |
| 187 pair and mapped to a single optab." */ | |
| 188 extern rtx expand_simple_binop (machine_mode, enum rtx_code, rtx, | |
| 189 rtx, rtx, int, enum optab_methods); | |
| 0 | 190 |
| 191 /* Expand a binary operation given optab and rtx operands. */ | |
| 111 | 192 extern rtx expand_binop (machine_mode, optab, rtx, rtx, rtx, int, |
| 0 | 193 enum optab_methods); |
| 194 | |
| 195 /* Expand a binary operation with both signed and unsigned forms. */ | |
| 111 | 196 extern rtx sign_expand_binop (machine_mode, optab, optab, rtx, rtx, |
| 0 | 197 rtx, int, enum optab_methods); |
| 198 | |
| 199 /* Generate code to perform an operation on one operand with two results. */ | |
| 200 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int); | |
| 201 | |
| 202 /* Generate code to perform an operation on two operands with two results. */ | |
| 203 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int); | |
| 204 | |
| 205 /* Generate code to perform an operation on two operands with two | |
| 206 results, using a library function. */ | |
| 207 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx, | |
| 208 enum rtx_code); | |
| 111 | 209 extern rtx expand_simple_unop (machine_mode, enum rtx_code, rtx, rtx, |
| 210 int); | |
| 0 | 211 |
| 212 /* Expand a unary arithmetic operation given optab rtx operand. */ | |
| 111 | 213 extern rtx expand_unop (machine_mode, optab, rtx, rtx, int); |
| 0 | 214 |
| 215 /* Expand the absolute value operation. */ | |
| 111 | 216 extern rtx expand_abs_nojump (machine_mode, rtx, rtx, int); |
| 217 extern rtx expand_abs (machine_mode, rtx, rtx, int, int); | |
| 0 | 218 |
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219 /* Expand the one's complement absolute value operation. */ |
| 111 | 220 extern rtx expand_one_cmpl_abs_nojump (machine_mode, rtx, rtx); |
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221 |
| 0 | 222 /* Expand the copysign operation. */ |
| 223 extern rtx expand_copysign (rtx, rtx, rtx); | |
| 224 /* Generate an instruction with a given INSN_CODE with an output and | |
| 225 an input. */ | |
| 111 | 226 extern bool maybe_emit_unop_insn (enum insn_code, rtx, rtx, enum rtx_code); |
| 227 extern void emit_unop_insn (enum insn_code, rtx, rtx, enum rtx_code); | |
| 0 | 228 |
| 111 | 229 /* Emit code to make a call to a constant function or a library call. */ |
| 230 extern void emit_libcall_block (rtx_insn *, rtx, rtx, rtx); | |
| 0 | 231 |
| 232 /* The various uses that a comparison can have; used by can_compare_p: | |
| 233 jumps, conditional moves, store flag operations. */ | |
| 234 enum can_compare_purpose | |
| 235 { | |
| 236 ccp_jump, | |
| 237 ccp_cmov, | |
| 238 ccp_store_flag | |
| 239 }; | |
| 240 | |
| 241 /* Nonzero if a compare of mode MODE can be done straightforwardly | |
| 242 (without splitting it into pieces). */ | |
| 111 | 243 extern int can_compare_p (enum rtx_code, machine_mode, |
| 0 | 244 enum can_compare_purpose); |
| 111 | 245 extern rtx prepare_operand (enum insn_code, rtx, int, machine_mode, |
| 246 machine_mode, int); | |
| 247 /* Emit a pair of rtl insns to compare two rtx's and to jump | |
| 248 to a label if the comparison is true. */ | |
| 249 extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx, | |
| 250 machine_mode, int, rtx, | |
| 251 profile_probability prob | |
| 252 = profile_probability::uninitialized ()); | |
| 253 | |
| 254 /* Generate code to indirectly jump to a location given in the rtx LOC. */ | |
| 255 extern void emit_indirect_jump (rtx); | |
| 256 | |
| 257 #include "insn-config.h" | |
| 258 | |
| 259 #ifndef GCC_INSN_CONFIG_H | |
| 260 #error "insn-config.h must be included before optabs.h" | |
| 261 #endif | |
| 0 | 262 |
| 111 | 263 /* Emit a conditional move operation. */ |
| 264 rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, machine_mode, | |
| 265 rtx, rtx, machine_mode, int); | |
| 266 | |
| 267 /* Emit a conditional negate or bitwise complement operation. */ | |
| 268 rtx emit_conditional_neg_or_complement (rtx, rtx_code, machine_mode, rtx, | |
| 269 rtx, rtx); | |
| 270 | |
| 271 rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, machine_mode, | |
| 272 rtx, rtx, machine_mode, int); | |
| 273 | |
| 274 /* Create but don't emit one rtl instruction to perform certain operations. | |
| 275 Modes must match; operands must meet the operation's predicates. | |
| 276 Likewise for subtraction and for just copying. */ | |
| 277 extern rtx_insn *gen_add2_insn (rtx, rtx); | |
| 278 extern rtx_insn *gen_add3_insn (rtx, rtx, rtx); | |
| 279 extern int have_add2_insn (rtx, rtx); | |
| 280 extern rtx_insn *gen_addptr3_insn (rtx, rtx, rtx); | |
| 281 extern int have_addptr3_insn (rtx, rtx, rtx); | |
| 282 extern rtx_insn *gen_sub2_insn (rtx, rtx); | |
| 283 extern rtx_insn *gen_sub3_insn (rtx, rtx, rtx); | |
| 284 extern int have_sub2_insn (rtx, rtx); | |
| 0 | 285 |
| 286 /* Generate the body of an insn to extend Y (with mode MFROM) | |
| 287 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */ | |
| 111 | 288 extern rtx_insn *gen_extend_insn (rtx, rtx, machine_mode, machine_mode, int); |
| 0 | 289 |
| 290 /* Generate code for a FLOAT_EXPR. */ | |
| 291 extern void expand_float (rtx, rtx, int); | |
| 292 | |
| 293 /* Generate code for a FIX_EXPR. */ | |
| 294 extern void expand_fix (rtx, rtx, int); | |
| 295 | |
| 111 | 296 /* Generate code for a FIXED_CONVERT_EXPR. */ |
| 297 extern void expand_fixed_convert (rtx, rtx, int, int); | |
| 298 | |
| 0 | 299 /* Generate code for float to integral conversion. */ |
| 300 extern bool expand_sfix_optab (rtx, rtx, convert_optab); | |
| 301 | |
| 111 | 302 /* Report whether the machine description contains an insn which can |
| 303 perform the operation described by CODE and MODE. */ | |
| 304 extern int have_insn_for (enum rtx_code, machine_mode); | |
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305 |
| 111 | 306 /* Generate a conditional trap instruction. */ |
| 307 extern rtx_insn *gen_cond_trap (enum rtx_code, rtx, rtx, rtx); | |
| 308 | |
| 309 /* Generate code for VEC_PERM_EXPR. */ | |
| 310 extern rtx expand_vec_perm (machine_mode, rtx, rtx, rtx, rtx); | |
| 311 | |
| 312 /* Generate code for vector comparison. */ | |
| 313 extern rtx expand_vec_cmp_expr (tree, tree, rtx); | |
| 0 | 314 |
| 315 /* Generate code for VEC_COND_EXPR. */ | |
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316 extern rtx expand_vec_cond_expr (tree, tree, tree, tree, rtx); |
| 0 | 317 |
| 111 | 318 /* Generate code for MULT_HIGHPART_EXPR. */ |
| 319 extern rtx expand_mult_highpart (machine_mode, rtx, rtx, rtx, bool); | |
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320 |
| 111 | 321 extern rtx expand_sync_lock_test_and_set (rtx, rtx, rtx); |
| 322 extern rtx expand_atomic_test_and_set (rtx, rtx, enum memmodel); | |
| 323 extern rtx expand_atomic_exchange (rtx, rtx, rtx, enum memmodel); | |
| 324 extern bool expand_atomic_compare_and_swap (rtx *, rtx *, rtx, rtx, rtx, bool, | |
| 325 enum memmodel, enum memmodel); | |
| 326 /* Generate memory barriers. */ | |
| 327 extern void expand_mem_thread_fence (enum memmodel); | |
| 328 extern void expand_mem_signal_fence (enum memmodel); | |
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329 |
| 111 | 330 rtx expand_atomic_load (rtx, rtx, enum memmodel); |
| 331 rtx expand_atomic_store (rtx, rtx, enum memmodel, bool); | |
| 332 rtx expand_atomic_fetch_op (rtx, rtx, rtx, enum rtx_code, enum memmodel, | |
| 333 bool); | |
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334 |
| 111 | 335 extern bool insn_operand_matches (enum insn_code icode, unsigned int opno, |
| 336 rtx operand); | |
| 337 extern bool valid_multiword_target_p (rtx); | |
| 338 extern void create_convert_operand_from_type (struct expand_operand *op, | |
| 339 rtx value, tree type); | |
| 340 extern bool maybe_legitimize_operands (enum insn_code icode, | |
| 341 unsigned int opno, unsigned int nops, | |
| 342 struct expand_operand *ops); | |
| 343 extern rtx_insn *maybe_gen_insn (enum insn_code icode, unsigned int nops, | |
| 344 struct expand_operand *ops); | |
| 345 extern bool maybe_expand_insn (enum insn_code icode, unsigned int nops, | |
| 346 struct expand_operand *ops); | |
| 347 extern bool maybe_expand_jump_insn (enum insn_code icode, unsigned int nops, | |
| 348 struct expand_operand *ops); | |
| 349 extern void expand_insn (enum insn_code icode, unsigned int nops, | |
| 350 struct expand_operand *ops); | |
| 351 extern void expand_jump_insn (enum insn_code icode, unsigned int nops, | |
| 352 struct expand_operand *ops); | |
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353 |
| 111 | 354 extern enum rtx_code get_rtx_code (enum tree_code tcode, bool unsignedp); |
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355 |
| 0 | 356 #endif /* GCC_OPTABS_H */ |