optabs.h revision 259563
1/* Definitions for code generation pass of GNU compiler. 2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 3 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING. If not, write to 19the Free Software Foundation, 51 Franklin Street, Fifth Floor, 20Boston, 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 42struct optab_handlers GTY(()) 43{ 44 enum insn_code insn_code; 45 rtx libfunc; 46}; 47 48struct optab GTY(()) 49{ 50 enum rtx_code code; 51 struct optab_handlers handlers[NUM_MACHINE_MODES]; 52}; 53typedef 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. */ 58struct convert_optab GTY(()) 59{ 60 enum rtx_code code; 61 struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES]; 62}; 63typedef 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. */ 70enum 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 273extern 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. */ 398enum 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 416extern 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. */ 431extern enum insn_code reload_in_optab[NUM_MACHINE_MODES]; 432extern enum insn_code reload_out_optab[NUM_MACHINE_MODES]; 433 434/* Contains the optab used for each rtx code. */ 435extern GTY(()) optab code_to_optab[NUM_RTX_CODE + 1]; 436 437 438typedef 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 443extern 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 449extern 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 455extern 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 461extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES]; 462extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES]; 463 464/* This array records the insn_code of insns to perform block moves. */ 465extern enum insn_code movmem_optab[NUM_MACHINE_MODES]; 466 467/* This array records the insn_code of insns to perform block sets. */ 468extern 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. */ 472extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES]; 473extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES]; 474extern 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. */ 478extern enum insn_code sync_add_optab[NUM_MACHINE_MODES]; 479extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES]; 480extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES]; 481extern enum insn_code sync_and_optab[NUM_MACHINE_MODES]; 482extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES]; 483extern 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. */ 487extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES]; 488extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES]; 489extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES]; 490extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES]; 491extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES]; 492extern 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. */ 496extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES]; 497extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES]; 498extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES]; 499extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES]; 500extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES]; 501extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES]; 502 503/* Atomic compare and swap. */ 504extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES]; 505extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES]; 506 507/* Atomic exchange with acquire semantics. */ 508extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES]; 509 510/* Atomic clear with release semantics. */ 511extern enum insn_code sync_lock_release[NUM_MACHINE_MODES]; 512 513/* Define functions given in optabs.c. */ 514 515extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op, 516 rtx target, int unsignedp); 517 518extern 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. */ 523extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int, 524 enum optab_methods); 525 526extern 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. */ 530extern 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. */ 534extern int expand_twoval_unop (optab, rtx, rtx, rtx, int); 535 536/* Generate code to perform an operation on two operands with two results. */ 537extern 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. */ 541extern 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. */ 545extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int); 546 547/* Expand the absolute value operation. */ 548extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int); 549extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int); 550 551/* Expand the copysign operation. */ 552extern rtx expand_copysign (rtx, rtx, rtx); 553 554/* Generate an instruction with a given INSN_CODE with an output and 555 an input. */ 556extern 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. */ 560extern rtx emit_no_conflict_block (rtx, rtx, rtx, rtx, rtx); 561 562/* Emit one rtl insn to compare two rtx's. */ 563extern 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. */ 568enum 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. */ 577extern 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). */ 581extern 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. */ 585extern 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. */ 589extern 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. */ 593extern void set_optab_libfunc (optab, enum machine_mode, const char *); 594extern void set_conv_libfunc (convert_optab, enum machine_mode, 595 enum machine_mode, const char *); 596 597/* Generate code for a FLOAT_EXPR. */ 598extern void expand_float (rtx, rtx, int); 599 600/* Generate code for a FIX_EXPR. */ 601extern void expand_fix (rtx, rtx, int); 602 603/* Return tree if target supports vector operations for COND_EXPR. */ 604bool expand_vec_cond_expr_p (tree, enum machine_mode); 605 606/* Generate code for VEC_COND_EXPR. */ 607extern rtx expand_vec_cond_expr (tree, rtx); 608 609/* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */ 610extern rtx expand_vec_shift_expr (tree, rtx); 611 612#endif /* GCC_OPTABS_H */ 613