1 /* Definitions for code generation pass of GNU compiler. 2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 3 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING. If not, write to 19 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 20 Boston, MA 02110-1301, USA. */ 21 22 #ifndef GCC_OPTABS_H 23 #define GCC_OPTABS_H 24 25 #include "insn-codes.h" 26 27 /* Optabs are tables saying how to generate insn bodies 28 for various machine modes and numbers of operands. 29 Each optab applies to one operation. 30 For example, add_optab applies to addition. 31 32 The insn_code slot is the enum insn_code that says how to 33 generate an insn for this operation on a particular machine mode. 34 It is CODE_FOR_nothing if there is no such insn on the target machine. 35 36 The `lib_call' slot is the name of the library function that 37 can be used to perform the operation. 38 39 A few optabs, such as move_optab and cmp_optab, are used 40 by special code. */ 41 42 struct optab_handlers GTY(()) 43 { 44 enum insn_code insn_code; 45 rtx libfunc; 46 }; 47 48 struct optab GTY(()) 49 { 50 enum rtx_code code; 51 struct optab_handlers handlers[NUM_MACHINE_MODES]; 52 }; 53 typedef struct optab * optab; 54 55 /* A convert_optab is for some sort of conversion operation between 56 modes. The first array index is the destination mode, the second 57 is the source mode. */ 58 struct convert_optab GTY(()) 59 { 60 enum rtx_code code; 61 struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES]; 62 }; 63 typedef struct convert_optab *convert_optab; 64 65 /* Given an enum insn_code, access the function to construct 66 the body of that kind of insn. */ 67 #define GEN_FCN(CODE) (insn_data[CODE].genfun) 68 69 /* Enumeration of valid indexes into optab_table. */ 70 enum optab_index 71 { 72 OTI_add, 73 OTI_addv, 74 OTI_sub, 75 OTI_subv, 76 77 /* Signed and fp multiply */ 78 OTI_smul, 79 OTI_smulv, 80 /* Signed multiply, return high word */ 81 OTI_smul_highpart, 82 OTI_umul_highpart, 83 /* Signed multiply with result one machine mode wider than args */ 84 OTI_smul_widen, 85 OTI_umul_widen, 86 /* Widening multiply of one unsigned and one signed operand. */ 87 OTI_usmul_widen, 88 89 /* Signed divide */ 90 OTI_sdiv, 91 OTI_sdivv, 92 /* Signed divide-and-remainder in one */ 93 OTI_sdivmod, 94 OTI_udiv, 95 OTI_udivmod, 96 /* Signed remainder */ 97 OTI_smod, 98 OTI_umod, 99 /* Floating point remainder functions */ 100 OTI_fmod, 101 OTI_drem, 102 /* Convert float to integer in float fmt */ 103 OTI_ftrunc, 104 105 /* Logical and */ 106 OTI_and, 107 /* Logical or */ 108 OTI_ior, 109 /* Logical xor */ 110 OTI_xor, 111 112 /* Arithmetic shift left */ 113 OTI_ashl, 114 /* Logical shift right */ 115 OTI_lshr, 116 /* Arithmetic shift right */ 117 OTI_ashr, 118 /* Rotate left */ 119 OTI_rotl, 120 /* Rotate right */ 121 OTI_rotr, 122 /* Signed and floating-point minimum value */ 123 OTI_smin, 124 /* Signed and floating-point maximum value */ 125 OTI_smax, 126 /* Unsigned minimum value */ 127 OTI_umin, 128 /* Unsigned maximum value */ 129 OTI_umax, 130 /* Power */ 131 OTI_pow, 132 /* Arc tangent of y/x */ 133 OTI_atan2, 134 135 /* Move instruction. */ 136 OTI_mov, 137 /* Move, preserving high part of register. */ 138 OTI_movstrict, 139 /* Move, with a misaligned memory. */ 140 OTI_movmisalign, 141 142 /* Unary operations */ 143 /* Negation */ 144 OTI_neg, 145 OTI_negv, 146 /* Abs value */ 147 OTI_abs, 148 OTI_absv, 149 /* Byteswap */ 150 OTI_bswap, 151 /* Bitwise not */ 152 OTI_one_cmpl, 153 /* Bit scanning and counting */ 154 OTI_ffs, 155 OTI_clz, 156 OTI_ctz, 157 OTI_popcount, 158 OTI_parity, 159 /* Square root */ 160 OTI_sqrt, 161 /* Sine-Cosine */ 162 OTI_sincos, 163 /* Sine */ 164 OTI_sin, 165 /* Inverse sine */ 166 OTI_asin, 167 /* Cosine */ 168 OTI_cos, 169 /* Inverse cosine */ 170 OTI_acos, 171 /* Exponential */ 172 OTI_exp, 173 /* Base-10 Exponential */ 174 OTI_exp10, 175 /* Base-2 Exponential */ 176 OTI_exp2, 177 /* Exponential - 1*/ 178 OTI_expm1, 179 /* Load exponent of a floating point number */ 180 OTI_ldexp, 181 /* Radix-independent exponent */ 182 OTI_logb, 183 OTI_ilogb, 184 /* Natural Logarithm */ 185 OTI_log, 186 /* Base-10 Logarithm */ 187 OTI_log10, 188 /* Base-2 Logarithm */ 189 OTI_log2, 190 /* logarithm of 1 plus argument */ 191 OTI_log1p, 192 /* Rounding functions */ 193 OTI_floor, 194 OTI_lfloor, 195 OTI_ceil, 196 OTI_lceil, 197 OTI_btrunc, 198 OTI_round, 199 OTI_nearbyint, 200 OTI_rint, 201 OTI_lrint, 202 /* Tangent */ 203 OTI_tan, 204 /* Inverse tangent */ 205 OTI_atan, 206 /* Copy sign */ 207 OTI_copysign, 208 209 /* Compare insn; two operands. */ 210 OTI_cmp, 211 /* Used only for libcalls for unsigned comparisons. */ 212 OTI_ucmp, 213 /* tst insn; compare one operand against 0 */ 214 OTI_tst, 215 216 /* Floating point comparison optabs - used primarily for libfuncs */ 217 OTI_eq, 218 OTI_ne, 219 OTI_gt, 220 OTI_ge, 221 OTI_lt, 222 OTI_le, 223 OTI_unord, 224 225 /* String length */ 226 OTI_strlen, 227 228 /* Combined compare & jump/store flags/move operations. */ 229 OTI_cbranch, 230 OTI_cmov, 231 OTI_cstore, 232 233 /* Push instruction. */ 234 OTI_push, 235 236 /* Conditional add instruction. */ 237 OTI_addcc, 238 239 /* Reduction operations on a vector operand. */ 240 OTI_reduc_smax, 241 OTI_reduc_umax, 242 OTI_reduc_smin, 243 OTI_reduc_umin, 244 OTI_reduc_splus, 245 OTI_reduc_uplus, 246 247 /* Summation, with result machine mode one or more wider than args. */ 248 OTI_ssum_widen, 249 OTI_usum_widen, 250 251 /* Dot product, with result machine mode one or more wider than args. */ 252 OTI_sdot_prod, 253 OTI_udot_prod, 254 255 /* Set specified field of vector operand. */ 256 OTI_vec_set, 257 /* Extract specified field of vector operand. */ 258 OTI_vec_extract, 259 /* Initialize vector operand. */ 260 OTI_vec_init, 261 /* Whole vector shift. The shift amount is in bits. */ 262 OTI_vec_shl, 263 OTI_vec_shr, 264 /* Extract specified elements from vectors, for vector load. */ 265 OTI_vec_realign_load, 266 267 /* Perform a raise to the power of integer. */ 268 OTI_powi, 269 270 OTI_MAX 271 }; 272 273 extern GTY(()) optab optab_table[OTI_MAX]; 274 275 #define add_optab (optab_table[OTI_add]) 276 #define sub_optab (optab_table[OTI_sub]) 277 #define smul_optab (optab_table[OTI_smul]) 278 #define addv_optab (optab_table[OTI_addv]) 279 #define subv_optab (optab_table[OTI_subv]) 280 #define smul_highpart_optab (optab_table[OTI_smul_highpart]) 281 #define umul_highpart_optab (optab_table[OTI_umul_highpart]) 282 #define smul_widen_optab (optab_table[OTI_smul_widen]) 283 #define umul_widen_optab (optab_table[OTI_umul_widen]) 284 #define usmul_widen_optab (optab_table[OTI_usmul_widen]) 285 #define sdiv_optab (optab_table[OTI_sdiv]) 286 #define smulv_optab (optab_table[OTI_smulv]) 287 #define sdivv_optab (optab_table[OTI_sdivv]) 288 #define sdivmod_optab (optab_table[OTI_sdivmod]) 289 #define udiv_optab (optab_table[OTI_udiv]) 290 #define udivmod_optab (optab_table[OTI_udivmod]) 291 #define smod_optab (optab_table[OTI_smod]) 292 #define umod_optab (optab_table[OTI_umod]) 293 #define fmod_optab (optab_table[OTI_fmod]) 294 #define drem_optab (optab_table[OTI_drem]) 295 #define ftrunc_optab (optab_table[OTI_ftrunc]) 296 #define and_optab (optab_table[OTI_and]) 297 #define ior_optab (optab_table[OTI_ior]) 298 #define xor_optab (optab_table[OTI_xor]) 299 #define ashl_optab (optab_table[OTI_ashl]) 300 #define lshr_optab (optab_table[OTI_lshr]) 301 #define ashr_optab (optab_table[OTI_ashr]) 302 #define rotl_optab (optab_table[OTI_rotl]) 303 #define rotr_optab (optab_table[OTI_rotr]) 304 #define smin_optab (optab_table[OTI_smin]) 305 #define smax_optab (optab_table[OTI_smax]) 306 #define umin_optab (optab_table[OTI_umin]) 307 #define umax_optab (optab_table[OTI_umax]) 308 #define pow_optab (optab_table[OTI_pow]) 309 #define atan2_optab (optab_table[OTI_atan2]) 310 311 #define mov_optab (optab_table[OTI_mov]) 312 #define movstrict_optab (optab_table[OTI_movstrict]) 313 #define movmisalign_optab (optab_table[OTI_movmisalign]) 314 315 #define neg_optab (optab_table[OTI_neg]) 316 #define negv_optab (optab_table[OTI_negv]) 317 #define abs_optab (optab_table[OTI_abs]) 318 #define absv_optab (optab_table[OTI_absv]) 319 #define one_cmpl_optab (optab_table[OTI_one_cmpl]) 320 #define bswap_optab (optab_table[OTI_bswap]) 321 #define ffs_optab (optab_table[OTI_ffs]) 322 #define clz_optab (optab_table[OTI_clz]) 323 #define ctz_optab (optab_table[OTI_ctz]) 324 #define popcount_optab (optab_table[OTI_popcount]) 325 #define parity_optab (optab_table[OTI_parity]) 326 #define sqrt_optab (optab_table[OTI_sqrt]) 327 #define sincos_optab (optab_table[OTI_sincos]) 328 #define sin_optab (optab_table[OTI_sin]) 329 #define asin_optab (optab_table[OTI_asin]) 330 #define cos_optab (optab_table[OTI_cos]) 331 #define acos_optab (optab_table[OTI_acos]) 332 #define exp_optab (optab_table[OTI_exp]) 333 #define exp10_optab (optab_table[OTI_exp10]) 334 #define exp2_optab (optab_table[OTI_exp2]) 335 #define expm1_optab (optab_table[OTI_expm1]) 336 #define ldexp_optab (optab_table[OTI_ldexp]) 337 #define logb_optab (optab_table[OTI_logb]) 338 #define ilogb_optab (optab_table[OTI_ilogb]) 339 #define log_optab (optab_table[OTI_log]) 340 #define log10_optab (optab_table[OTI_log10]) 341 #define log2_optab (optab_table[OTI_log2]) 342 #define log1p_optab (optab_table[OTI_log1p]) 343 #define floor_optab (optab_table[OTI_floor]) 344 #define lfloor_optab (optab_table[OTI_lfloor]) 345 #define ceil_optab (optab_table[OTI_ceil]) 346 #define lceil_optab (optab_table[OTI_lceil]) 347 #define btrunc_optab (optab_table[OTI_btrunc]) 348 #define round_optab (optab_table[OTI_round]) 349 #define nearbyint_optab (optab_table[OTI_nearbyint]) 350 #define rint_optab (optab_table[OTI_rint]) 351 #define lrint_optab (optab_table[OTI_lrint]) 352 #define tan_optab (optab_table[OTI_tan]) 353 #define atan_optab (optab_table[OTI_atan]) 354 #define copysign_optab (optab_table[OTI_copysign]) 355 356 #define cmp_optab (optab_table[OTI_cmp]) 357 #define ucmp_optab (optab_table[OTI_ucmp]) 358 #define tst_optab (optab_table[OTI_tst]) 359 360 #define eq_optab (optab_table[OTI_eq]) 361 #define ne_optab (optab_table[OTI_ne]) 362 #define gt_optab (optab_table[OTI_gt]) 363 #define ge_optab (optab_table[OTI_ge]) 364 #define lt_optab (optab_table[OTI_lt]) 365 #define le_optab (optab_table[OTI_le]) 366 #define unord_optab (optab_table[OTI_unord]) 367 368 #define strlen_optab (optab_table[OTI_strlen]) 369 370 #define cbranch_optab (optab_table[OTI_cbranch]) 371 #define cmov_optab (optab_table[OTI_cmov]) 372 #define cstore_optab (optab_table[OTI_cstore]) 373 #define push_optab (optab_table[OTI_push]) 374 #define addcc_optab (optab_table[OTI_addcc]) 375 376 #define reduc_smax_optab (optab_table[OTI_reduc_smax]) 377 #define reduc_umax_optab (optab_table[OTI_reduc_umax]) 378 #define reduc_smin_optab (optab_table[OTI_reduc_smin]) 379 #define reduc_umin_optab (optab_table[OTI_reduc_umin]) 380 #define reduc_splus_optab (optab_table[OTI_reduc_splus]) 381 #define reduc_uplus_optab (optab_table[OTI_reduc_uplus]) 382 383 #define ssum_widen_optab (optab_table[OTI_ssum_widen]) 384 #define usum_widen_optab (optab_table[OTI_usum_widen]) 385 #define sdot_prod_optab (optab_table[OTI_sdot_prod]) 386 #define udot_prod_optab (optab_table[OTI_udot_prod]) 387 388 #define vec_set_optab (optab_table[OTI_vec_set]) 389 #define vec_extract_optab (optab_table[OTI_vec_extract]) 390 #define vec_init_optab (optab_table[OTI_vec_init]) 391 #define vec_shl_optab (optab_table[OTI_vec_shl]) 392 #define vec_shr_optab (optab_table[OTI_vec_shr]) 393 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load]) 394 395 #define powi_optab (optab_table[OTI_powi]) 396 397 /* Conversion optabs have their own table and indexes. */ 398 enum convert_optab_index 399 { 400 COI_sext, 401 COI_zext, 402 COI_trunc, 403 404 COI_sfix, 405 COI_ufix, 406 407 COI_sfixtrunc, 408 COI_ufixtrunc, 409 410 COI_sfloat, 411 COI_ufloat, 412 413 COI_MAX 414 }; 415 416 extern GTY(()) convert_optab convert_optab_table[COI_MAX]; 417 418 #define sext_optab (convert_optab_table[COI_sext]) 419 #define zext_optab (convert_optab_table[COI_zext]) 420 #define trunc_optab (convert_optab_table[COI_trunc]) 421 #define sfix_optab (convert_optab_table[COI_sfix]) 422 #define ufix_optab (convert_optab_table[COI_ufix]) 423 #define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc]) 424 #define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc]) 425 #define sfloat_optab (convert_optab_table[COI_sfloat]) 426 #define ufloat_optab (convert_optab_table[COI_ufloat]) 427 428 /* These arrays record the insn_code of insns that may be needed to 429 perform input and output reloads of special objects. They provide a 430 place to pass a scratch register. */ 431 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES]; 432 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES]; 433 434 /* Contains the optab used for each rtx code. */ 435 extern GTY(()) optab code_to_optab[NUM_RTX_CODE + 1]; 436 437 438 typedef rtx (*rtxfun) (rtx); 439 440 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...) 441 gives the gen_function to make a branch to test that condition. */ 442 443 extern rtxfun bcc_gen_fctn[NUM_RTX_CODE]; 444 445 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...) 446 gives the insn code to make a store-condition insn 447 to test that condition. */ 448 449 extern enum insn_code setcc_gen_code[NUM_RTX_CODE]; 450 451 #ifdef HAVE_conditional_move 452 /* Indexed by the machine mode, gives the insn code to make a conditional 453 move insn. */ 454 455 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES]; 456 #endif 457 458 /* Indexed by the machine mode, gives the insn code for vector conditional 459 operation. */ 460 461 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES]; 462 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES]; 463 464 /* This array records the insn_code of insns to perform block moves. */ 465 extern enum insn_code movmem_optab[NUM_MACHINE_MODES]; 466 467 /* This array records the insn_code of insns to perform block sets. */ 468 extern enum insn_code setmem_optab[NUM_MACHINE_MODES]; 469 470 /* These arrays record the insn_code of two different kinds of insns 471 to perform block compares. */ 472 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES]; 473 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES]; 474 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES]; 475 476 /* Synchronization primitives. This first set is atomic operation for 477 which we don't care about the resulting value. */ 478 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES]; 479 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES]; 480 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES]; 481 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES]; 482 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES]; 483 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES]; 484 485 /* This second set is atomic operations in which we return the value 486 that existed in memory before the operation. */ 487 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES]; 488 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES]; 489 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES]; 490 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES]; 491 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES]; 492 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES]; 493 494 /* This third set is atomic operations in which we return the value 495 that resulted after performing the operation. */ 496 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES]; 497 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES]; 498 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES]; 499 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES]; 500 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES]; 501 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES]; 502 503 /* Atomic compare and swap. */ 504 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES]; 505 extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES]; 506 507 /* Atomic exchange with acquire semantics. */ 508 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES]; 509 510 /* Atomic clear with release semantics. */ 511 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES]; 512 513 /* Define functions given in optabs.c. */ 514 515 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op, 516 rtx target, int unsignedp); 517 518 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab, 519 rtx op0, rtx op1, rtx op2, rtx target, 520 int unsignedp); 521 522 /* Expand a binary operation given optab and rtx operands. */ 523 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int, 524 enum optab_methods); 525 526 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int, 527 enum optab_methods); 528 529 /* Expand a binary operation with both signed and unsigned forms. */ 530 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx, 531 rtx, int, enum optab_methods); 532 533 /* Generate code to perform an operation on one operand with two results. */ 534 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int); 535 536 /* Generate code to perform an operation on two operands with two results. */ 537 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int); 538 539 /* Generate code to perform an operation on two operands with two 540 results, using a library function. */ 541 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx, 542 enum rtx_code); 543 544 /* Expand a unary arithmetic operation given optab rtx operand. */ 545 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int); 546 547 /* Expand the absolute value operation. */ 548 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int); 549 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int); 550 551 /* Expand the copysign operation. */ 552 extern rtx expand_copysign (rtx, rtx, rtx); 553 554 /* Generate an instruction with a given INSN_CODE with an output and 555 an input. */ 556 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code); 557 558 /* Emit code to perform a series of operations on a multi-word quantity, one 559 word at a time. */ 560 extern rtx emit_no_conflict_block (rtx, rtx, rtx, rtx, rtx); 561 562 /* Emit one rtl insn to compare two rtx's. */ 563 extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode, 564 int); 565 566 /* The various uses that a comparison can have; used by can_compare_p: 567 jumps, conditional moves, store flag operations. */ 568 enum can_compare_purpose 569 { 570 ccp_jump, 571 ccp_cmov, 572 ccp_store_flag 573 }; 574 575 /* Return the optab used for computing the given operation on the type 576 given by the second argument. */ 577 extern optab optab_for_tree_code (enum tree_code, tree); 578 579 /* Nonzero if a compare of mode MODE can be done straightforwardly 580 (without splitting it into pieces). */ 581 extern int can_compare_p (enum rtx_code, enum machine_mode, 582 enum can_compare_purpose); 583 584 /* Return the INSN_CODE to use for an extend operation. */ 585 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int); 586 587 /* Generate the body of an insn to extend Y (with mode MFROM) 588 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */ 589 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode, 590 enum machine_mode, int); 591 592 /* Call this to reset the function entry for one optab. */ 593 extern void set_optab_libfunc (optab, enum machine_mode, const char *); 594 extern void set_conv_libfunc (convert_optab, enum machine_mode, 595 enum machine_mode, const char *); 596 597 /* Generate code for a FLOAT_EXPR. */ 598 extern void expand_float (rtx, rtx, int); 599 600 /* Generate code for a FIX_EXPR. */ 601 extern void expand_fix (rtx, rtx, int); 602 603 /* Return tree if target supports vector operations for COND_EXPR. */ 604 bool expand_vec_cond_expr_p (tree, enum machine_mode); 605 606 /* Generate code for VEC_COND_EXPR. */ 607 extern rtx expand_vec_cond_expr (tree, rtx); 608 609 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */ 610 extern rtx expand_vec_shift_expr (tree, rtx); 611 612 #endif /* GCC_OPTABS_H */ 613