gcc/optabs.h

   1 /* Definitions for code generation pass of GNU compiler.
   2    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_OPTABS_H
  22 #define GCC_OPTABS_H
  23
  24 #include "insn-codes.h"
  25
  26 /* Optabs are tables saying how to generate insn bodies
  27    for various machine modes and numbers of operands.
  28    Each optab applies to one operation.
  29
  30    For example, add_optab applies to addition.
  31
  32    The `lib_call' slot is the name of the library function that
  33    can be used to perform the operation.
  34
  35    A few optabs, such as move_optab, are used by special code.  */
  36
  37 struct optab_handlers
  38 {
  39   /* I - CODE_FOR_nothing, where I is either the insn code of the
  40      associated insn generator or CODE_FOR_nothing if there is no such
  41      insn on the target machine.  */
  42   int insn_code;
  43 };
  44
  45 struct widening_optab_handlers
  46 {
  47   struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
  48 };
  49
  50 struct optab_d
  51 {
  52   enum rtx_code code;
  53   char libcall_suffix;
  54   const char *libcall_basename;
  55   void (*libcall_gen)(struct optab_d *, const char *name, char suffix,
  56                       enum machine_mode);
  57   struct optab_handlers handlers[NUM_MACHINE_MODES];
  58   struct widening_optab_handlers *widening;
  59 };
  60 typedef struct optab_d * optab;
  61
  62 /* A convert_optab is for some sort of conversion operation between
  63    modes.  The first array index is the destination mode, the second
  64    is the source mode.  */
  65 struct convert_optab_d
  66 {
  67   enum rtx_code code;
  68   const char *libcall_basename;
  69   void (*libcall_gen)(struct convert_optab_d *, const char *name,
  70                       enum machine_mode,
  71                       enum machine_mode);
  72   struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
  73 };
  74 typedef struct convert_optab_d *convert_optab;
  75
  76 /* Given an enum insn_code, access the function to construct
  77    the body of that kind of insn.  */
  78 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
  79
  80 /* Enumeration of valid indexes into optab_table.  */
  81 enum optab_index
  82 {
  83   /* Fixed-point operators with signed/unsigned saturation */
  84   OTI_ssadd,
  85   OTI_usadd,
  86   OTI_sssub,
  87   OTI_ussub,
  88   OTI_ssmul,
  89   OTI_usmul,
  90   OTI_ssdiv,
  91   OTI_usdiv,
  92   OTI_ssneg,
  93   OTI_usneg,
  94   OTI_ssashl,
  95   OTI_usashl,
  96
  97   OTI_add,
  98   OTI_addv,
  99   OTI_sub,
 100   OTI_subv,
 101
 102   /* Signed and fp multiply */
 103   OTI_smul,
 104   OTI_smulv,
 105   /* Signed multiply, return high word */
 106   OTI_smul_highpart,
 107   OTI_umul_highpart,
 108   /* Signed multiply with result one machine mode wider than args */
 109   OTI_smul_widen,
 110   OTI_umul_widen,
 111   /* Widening multiply of one unsigned and one signed operand.  */
 112   OTI_usmul_widen,
 113   /* Signed multiply and add with the result and addend one machine mode
 114      wider than the multiplicand and multiplier.  */
 115   OTI_smadd_widen,
 116   /* Unsigned multiply and add with the result and addend one machine mode
 117      wider than the multiplicand and multiplier.  */
 118   OTI_umadd_widen,
 119   /* Signed multiply and add with the result and addend one machine mode
 120      wider than the multiplicand and multiplier.
 121      All involved operations are saturating.  */
 122   OTI_ssmadd_widen,
 123   /* Unsigned multiply and add with the result and addend one machine mode
 124      wider than the multiplicand and multiplier.
 125      All involved operations are saturating.  */
 126   OTI_usmadd_widen,
 127   /* Signed multiply and subtract the result and minuend one machine mode
 128      wider than the multiplicand and multiplier.  */
 129   OTI_smsub_widen,
 130   /* Unsigned multiply and subtract the result and minuend one machine mode
 131      wider than the multiplicand and multiplier.  */
 132   OTI_umsub_widen,
 133   /* Signed multiply and subtract the result and minuend one machine mode
 134      wider than the multiplicand and multiplier.
 135      All involved operations are saturating.  */
 136   OTI_ssmsub_widen,
 137   /* Unsigned multiply and subtract the result and minuend one machine mode
 138      wider than the multiplicand and multiplier.
 139      All involved operations are saturating.  */
 140   OTI_usmsub_widen,
 141
 142   /* Signed divide */
 143   OTI_sdiv,
 144   OTI_sdivv,
 145   /* Signed divide-and-remainder in one */
 146   OTI_sdivmod,
 147   OTI_udiv,
 148   OTI_udivmod,
 149   /* Signed remainder */
 150   OTI_smod,
 151   OTI_umod,
 152   /* Floating point remainder functions */
 153   OTI_fmod,
 154   OTI_remainder,
 155   /* Convert float to integer in float fmt */
 156   OTI_ftrunc,
 157
 158   /* Logical and */
 159   OTI_and,
 160   /* Logical or */
 161   OTI_ior,
 162   /* Logical xor */
 163   OTI_xor,
 164
 165   /* Arithmetic shift left */
 166   OTI_ashl,
 167   /* Logical shift right */
 168   OTI_lshr,
 169   /* Arithmetic shift right */
 170   OTI_ashr,
 171   /* Rotate left */
 172   OTI_rotl,
 173   /* Rotate right */
 174   OTI_rotr,
 175
 176   /* Arithmetic shift left of vector by vector */
 177   OTI_vashl,
 178   /* Logical shift right of vector by vector */
 179   OTI_vlshr,
 180   /* Arithmetic shift right of vector by vector */
 181   OTI_vashr,
 182   /* Rotate left of vector by vector */
 183   OTI_vrotl,
 184   /* Rotate right of vector by vector */
 185   OTI_vrotr,
 186
 187   /* Signed and floating-point minimum value */
 188   OTI_smin,
 189   /* Signed and floating-point maximum value */
 190   OTI_smax,
 191   /* Unsigned minimum value */
 192   OTI_umin,
 193   /* Unsigned maximum value */
 194   OTI_umax,
 195   /* Power */
 196   OTI_pow,
 197   /* Arc tangent of y/x */
 198   OTI_atan2,
 199   /* Floating multiply/add */
 200   OTI_fma,
 201   OTI_fms,
 202   OTI_fnma,
 203   OTI_fnms,
 204
 205   /* Move instruction.  */
 206   OTI_mov,
 207   /* Move, preserving high part of register.  */
 208   OTI_movstrict,
 209   /* Move, with a misaligned memory.  */
 210   OTI_movmisalign,
 211   /* Nontemporal store.  */
 212   OTI_storent,
 213
 214   /* Unary operations */
 215   /* Negation */
 216   OTI_neg,
 217   OTI_negv,
 218   /* Abs value */
 219   OTI_abs,
 220   OTI_absv,
 221   /* Byteswap */
 222   OTI_bswap,
 223   /* Bitwise not */
 224   OTI_one_cmpl,
 225   /* Bit scanning and counting */
 226   OTI_ffs,
 227   OTI_clz,
 228   OTI_ctz,
 229   OTI_clrsb,
 230   OTI_popcount,
 231   OTI_parity,
 232   /* Square root */
 233   OTI_sqrt,
 234   /* Sine-Cosine */
 235   OTI_sincos,
 236   /* Sine */
 237   OTI_sin,
 238   /* Inverse sine */
 239   OTI_asin,
 240   /* Cosine */
 241   OTI_cos,
 242   /* Inverse cosine */
 243   OTI_acos,
 244   /* Exponential */
 245   OTI_exp,
 246   /* Base-10 Exponential */
 247   OTI_exp10,
 248   /* Base-2 Exponential */
 249   OTI_exp2,
 250   /* Exponential - 1*/
 251   OTI_expm1,
 252   /* Load exponent of a floating point number */
 253   OTI_ldexp,
 254   /* Multiply floating-point number by integral power of radix */
 255   OTI_scalb,
 256   /* Mantissa of a floating-point number */
 257   OTI_significand,
 258   /* Radix-independent exponent */
 259   OTI_logb,
 260   OTI_ilogb,
 261   /* Natural Logarithm */
 262   OTI_log,
 263   /* Base-10 Logarithm */
 264   OTI_log10,
 265   /* Base-2 Logarithm */
 266   OTI_log2,
 267   /* logarithm of 1 plus argument */
 268   OTI_log1p,
 269   /* Rounding functions */
 270   OTI_floor,
 271   OTI_ceil,
 272   OTI_btrunc,
 273   OTI_round,
 274   OTI_nearbyint,
 275   OTI_rint,
 276   /* Tangent */
 277   OTI_tan,
 278   /* Inverse tangent */
 279   OTI_atan,
 280   /* Copy sign */
 281   OTI_copysign,
 282   /* Signbit */
 283   OTI_signbit,
 284   /* Test for infinite value */
 285   OTI_isinf,
 286
 287   /* Compare insn; two operands.  Used only for libcalls.  */
 288   OTI_cmp,
 289   OTI_ucmp,
 290
 291   /* Floating point comparison optabs - used primarily for libfuncs */
 292   OTI_eq,
 293   OTI_ne,
 294   OTI_gt,
 295   OTI_ge,
 296   OTI_lt,
 297   OTI_le,
 298   OTI_unord,
 299
 300   /* String length */
 301   OTI_strlen,
 302
 303   /* Combined compare & jump/move/store flags/trap operations.  */
 304   OTI_cbranch,
 305   OTI_cmov,
 306   OTI_cstore,
 307   OTI_ctrap,
 308
 309   /* Push instruction.  */
 310   OTI_push,
 311
 312   /* Conditional add instruction.  */
 313   OTI_addcc,
 314
 315   /* Reduction operations on a vector operand.  */
 316   OTI_reduc_smax,
 317   OTI_reduc_umax,
 318   OTI_reduc_smin,
 319   OTI_reduc_umin,
 320   OTI_reduc_splus,
 321   OTI_reduc_uplus,
 322
 323   /* Summation, with result machine mode one or more wider than args.  */
 324   OTI_ssum_widen,
 325   OTI_usum_widen,
 326
 327   /* Dot product, with result machine mode one or more wider than args.  */
 328   OTI_sdot_prod,
 329   OTI_udot_prod,
 330
 331   /* Set specified field of vector operand.  */
 332   OTI_vec_set,
 333   /* Extract specified field of vector operand.  */
 334   OTI_vec_extract,
 335   /* Extract even/odd fields of vector operands.  */
 336   OTI_vec_extract_even,
 337   OTI_vec_extract_odd,
 338   /* Interleave fields of vector operands.  */
 339   OTI_vec_interleave_high,
 340   OTI_vec_interleave_low,
 341   /* Initialize vector operand.  */
 342   OTI_vec_init,
 343   /* Whole vector shift. The shift amount is in bits.  */
 344   OTI_vec_shl,
 345   OTI_vec_shr,
 346   /* Extract specified elements from vectors, for vector load.  */
 347   OTI_vec_realign_load,
 348   /* Widening multiplication.
 349      The high/low part of the resulting vector of products is returned.  */
 350   OTI_vec_widen_umult_hi,
 351   OTI_vec_widen_umult_lo,
 352   OTI_vec_widen_smult_hi,
 353   OTI_vec_widen_smult_lo,
 354   /* Extract and widen the high/low part of a vector of signed or
 355      floating point elements.  */
 356   OTI_vec_unpacks_hi,
 357   OTI_vec_unpacks_lo,
 358   /* Extract and widen the high/low part of a vector of unsigned
 359      elements.  */
 360   OTI_vec_unpacku_hi,
 361   OTI_vec_unpacku_lo,
 362
 363   /* Extract, convert to floating point and widen the high/low part of
 364      a vector of signed or unsigned integer elements.  */
 365   OTI_vec_unpacks_float_hi,
 366   OTI_vec_unpacks_float_lo,
 367   OTI_vec_unpacku_float_hi,
 368   OTI_vec_unpacku_float_lo,
 369
 370   /* Narrow (demote) and merge the elements of two vectors.  */
 371   OTI_vec_pack_trunc,
 372   OTI_vec_pack_usat,
 373   OTI_vec_pack_ssat,
 374
 375   /* Convert to signed/unsigned integer, narrow and merge elements
 376      of two vectors of floating point elements.  */
 377   OTI_vec_pack_sfix_trunc,
 378   OTI_vec_pack_ufix_trunc,
 379
 380   /* Perform a raise to the power of integer.  */
 381   OTI_powi,
 382
 383   OTI_MAX
 384 };
 385
 386 #define ssadd_optab (&optab_table[OTI_ssadd])
 387 #define usadd_optab (&optab_table[OTI_usadd])
 388 #define sssub_optab (&optab_table[OTI_sssub])
 389 #define ussub_optab (&optab_table[OTI_ussub])
 390 #define ssmul_optab (&optab_table[OTI_ssmul])
 391 #define usmul_optab (&optab_table[OTI_usmul])
 392 #define ssdiv_optab (&optab_table[OTI_ssdiv])
 393 #define usdiv_optab (&optab_table[OTI_usdiv])
 394 #define ssneg_optab (&optab_table[OTI_ssneg])
 395 #define usneg_optab (&optab_table[OTI_usneg])
 396 #define ssashl_optab (&optab_table[OTI_ssashl])
 397 #define usashl_optab (&optab_table[OTI_usashl])
 398
 399 #define add_optab (&optab_table[OTI_add])
 400 #define sub_optab (&optab_table[OTI_sub])
 401 #define smul_optab (&optab_table[OTI_smul])
 402 #define addv_optab (&optab_table[OTI_addv])
 403 #define subv_optab (&optab_table[OTI_subv])
 404 #define smul_highpart_optab (&optab_table[OTI_smul_highpart])
 405 #define umul_highpart_optab (&optab_table[OTI_umul_highpart])
 406 #define smul_widen_optab (&optab_table[OTI_smul_widen])
 407 #define umul_widen_optab (&optab_table[OTI_umul_widen])
 408 #define usmul_widen_optab (&optab_table[OTI_usmul_widen])
 409 #define smadd_widen_optab (&optab_table[OTI_smadd_widen])
 410 #define umadd_widen_optab (&optab_table[OTI_umadd_widen])
 411 #define ssmadd_widen_optab (&optab_table[OTI_ssmadd_widen])
 412 #define usmadd_widen_optab (&optab_table[OTI_usmadd_widen])
 413 #define smsub_widen_optab (&optab_table[OTI_smsub_widen])
 414 #define umsub_widen_optab (&optab_table[OTI_umsub_widen])
 415 #define ssmsub_widen_optab (&optab_table[OTI_ssmsub_widen])
 416 #define usmsub_widen_optab (&optab_table[OTI_usmsub_widen])
 417 #define sdiv_optab (&optab_table[OTI_sdiv])
 418 #define smulv_optab (&optab_table[OTI_smulv])
 419 #define sdivv_optab (&optab_table[OTI_sdivv])
 420 #define sdivmod_optab (&optab_table[OTI_sdivmod])
 421 #define udiv_optab (&optab_table[OTI_udiv])
 422 #define udivmod_optab (&optab_table[OTI_udivmod])
 423 #define smod_optab (&optab_table[OTI_smod])
 424 #define umod_optab (&optab_table[OTI_umod])
 425 #define fmod_optab (&optab_table[OTI_fmod])
 426 #define remainder_optab (&optab_table[OTI_remainder])
 427 #define ftrunc_optab (&optab_table[OTI_ftrunc])
 428 #define and_optab (&optab_table[OTI_and])
 429 #define ior_optab (&optab_table[OTI_ior])
 430 #define xor_optab (&optab_table[OTI_xor])
 431 #define ashl_optab (&optab_table[OTI_ashl])
 432 #define lshr_optab (&optab_table[OTI_lshr])
 433 #define ashr_optab (&optab_table[OTI_ashr])
 434 #define rotl_optab (&optab_table[OTI_rotl])
 435 #define rotr_optab (&optab_table[OTI_rotr])
 436 #define vashl_optab (&optab_table[OTI_vashl])
 437 #define vlshr_optab (&optab_table[OTI_vlshr])
 438 #define vashr_optab (&optab_table[OTI_vashr])
 439 #define vrotl_optab (&optab_table[OTI_vrotl])
 440 #define vrotr_optab (&optab_table[OTI_vrotr])
 441 #define smin_optab (&optab_table[OTI_smin])
 442 #define smax_optab (&optab_table[OTI_smax])
 443 #define umin_optab (&optab_table[OTI_umin])
 444 #define umax_optab (&optab_table[OTI_umax])
 445 #define pow_optab (&optab_table[OTI_pow])
 446 #define atan2_optab (&optab_table[OTI_atan2])
 447 #define fma_optab (&optab_table[OTI_fma])
 448 #define fms_optab (&optab_table[OTI_fms])
 449 #define fnma_optab (&optab_table[OTI_fnma])
 450 #define fnms_optab (&optab_table[OTI_fnms])
 451
 452 #define mov_optab (&optab_table[OTI_mov])
 453 #define movstrict_optab (&optab_table[OTI_movstrict])
 454 #define movmisalign_optab (&optab_table[OTI_movmisalign])
 455 #define storent_optab (&optab_table[OTI_storent])
 456
 457 #define neg_optab (&optab_table[OTI_neg])
 458 #define negv_optab (&optab_table[OTI_negv])
 459 #define abs_optab (&optab_table[OTI_abs])
 460 #define absv_optab (&optab_table[OTI_absv])
 461 #define one_cmpl_optab (&optab_table[OTI_one_cmpl])
 462 #define bswap_optab (&optab_table[OTI_bswap])
 463 #define ffs_optab (&optab_table[OTI_ffs])
 464 #define clz_optab (&optab_table[OTI_clz])
 465 #define ctz_optab (&optab_table[OTI_ctz])
 466 #define clrsb_optab (&optab_table[OTI_clrsb])
 467 #define popcount_optab (&optab_table[OTI_popcount])
 468 #define parity_optab (&optab_table[OTI_parity])
 469 #define sqrt_optab (&optab_table[OTI_sqrt])
 470 #define sincos_optab (&optab_table[OTI_sincos])
 471 #define sin_optab (&optab_table[OTI_sin])
 472 #define asin_optab (&optab_table[OTI_asin])
 473 #define cos_optab (&optab_table[OTI_cos])
 474 #define acos_optab (&optab_table[OTI_acos])
 475 #define exp_optab (&optab_table[OTI_exp])
 476 #define exp10_optab (&optab_table[OTI_exp10])
 477 #define exp2_optab (&optab_table[OTI_exp2])
 478 #define expm1_optab (&optab_table[OTI_expm1])
 479 #define ldexp_optab (&optab_table[OTI_ldexp])
 480 #define scalb_optab (&optab_table[OTI_scalb])
 481 #define significand_optab (&optab_table[OTI_significand])
 482 #define logb_optab (&optab_table[OTI_logb])
 483 #define ilogb_optab (&optab_table[OTI_ilogb])
 484 #define log_optab (&optab_table[OTI_log])
 485 #define log10_optab (&optab_table[OTI_log10])
 486 #define log2_optab (&optab_table[OTI_log2])
 487 #define log1p_optab (&optab_table[OTI_log1p])
 488 #define floor_optab (&optab_table[OTI_floor])
 489 #define ceil_optab (&optab_table[OTI_ceil])
 490 #define btrunc_optab (&optab_table[OTI_btrunc])
 491 #define round_optab (&optab_table[OTI_round])
 492 #define nearbyint_optab (&optab_table[OTI_nearbyint])
 493 #define rint_optab (&optab_table[OTI_rint])
 494 #define tan_optab (&optab_table[OTI_tan])
 495 #define atan_optab (&optab_table[OTI_atan])
 496 #define copysign_optab (&optab_table[OTI_copysign])
 497 #define signbit_optab (&optab_table[OTI_signbit])
 498 #define isinf_optab (&optab_table[OTI_isinf])
 499
 500 #define cmp_optab (&optab_table[OTI_cmp])
 501 #define ucmp_optab (&optab_table[OTI_ucmp])
 502
 503 #define eq_optab (&optab_table[OTI_eq])
 504 #define ne_optab (&optab_table[OTI_ne])
 505 #define gt_optab (&optab_table[OTI_gt])
 506 #define ge_optab (&optab_table[OTI_ge])
 507 #define lt_optab (&optab_table[OTI_lt])
 508 #define le_optab (&optab_table[OTI_le])
 509 #define unord_optab (&optab_table[OTI_unord])
 510
 511 #define strlen_optab (&optab_table[OTI_strlen])
 512
 513 #define cbranch_optab (&optab_table[OTI_cbranch])
 514 #define cmov_optab (&optab_table[OTI_cmov])
 515 #define cstore_optab (&optab_table[OTI_cstore])
 516 #define ctrap_optab (&optab_table[OTI_ctrap])
 517
 518 #define push_optab (&optab_table[OTI_push])
 519 #define addcc_optab (&optab_table[OTI_addcc])
 520
 521 #define reduc_smax_optab (&optab_table[OTI_reduc_smax])
 522 #define reduc_umax_optab (&optab_table[OTI_reduc_umax])
 523 #define reduc_smin_optab (&optab_table[OTI_reduc_smin])
 524 #define reduc_umin_optab (&optab_table[OTI_reduc_umin])
 525 #define reduc_splus_optab (&optab_table[OTI_reduc_splus])
 526 #define reduc_uplus_optab (&optab_table[OTI_reduc_uplus])
 527
 528 #define ssum_widen_optab (&optab_table[OTI_ssum_widen])
 529 #define usum_widen_optab (&optab_table[OTI_usum_widen])
 530 #define sdot_prod_optab (&optab_table[OTI_sdot_prod])
 531 #define udot_prod_optab (&optab_table[OTI_udot_prod])
 532
 533 #define vec_set_optab (&optab_table[OTI_vec_set])
 534 #define vec_extract_optab (&optab_table[OTI_vec_extract])
 535 #define vec_extract_even_optab (&optab_table[OTI_vec_extract_even])
 536 #define vec_extract_odd_optab (&optab_table[OTI_vec_extract_odd])
 537 #define vec_interleave_high_optab (&optab_table[OTI_vec_interleave_high])
 538 #define vec_interleave_low_optab (&optab_table[OTI_vec_interleave_low])
 539 #define vec_init_optab (&optab_table[OTI_vec_init])
 540 #define vec_shl_optab (&optab_table[OTI_vec_shl])
 541 #define vec_shr_optab (&optab_table[OTI_vec_shr])
 542 #define vec_realign_load_optab (&optab_table[OTI_vec_realign_load])
 543 #define vec_widen_umult_hi_optab (&optab_table[OTI_vec_widen_umult_hi])
 544 #define vec_widen_umult_lo_optab (&optab_table[OTI_vec_widen_umult_lo])
 545 #define vec_widen_smult_hi_optab (&optab_table[OTI_vec_widen_smult_hi])
 546 #define vec_widen_smult_lo_optab (&optab_table[OTI_vec_widen_smult_lo])
 547 #define vec_unpacks_hi_optab (&optab_table[OTI_vec_unpacks_hi])
 548 #define vec_unpacks_lo_optab (&optab_table[OTI_vec_unpacks_lo])
 549 #define vec_unpacku_hi_optab (&optab_table[OTI_vec_unpacku_hi])
 550 #define vec_unpacku_lo_optab (&optab_table[OTI_vec_unpacku_lo])
 551 #define vec_unpacks_float_hi_optab (&optab_table[OTI_vec_unpacks_float_hi])
 552 #define vec_unpacks_float_lo_optab (&optab_table[OTI_vec_unpacks_float_lo])
 553 #define vec_unpacku_float_hi_optab (&optab_table[OTI_vec_unpacku_float_hi])
 554 #define vec_unpacku_float_lo_optab (&optab_table[OTI_vec_unpacku_float_lo])
 555 #define vec_pack_trunc_optab (&optab_table[OTI_vec_pack_trunc])
 556 #define vec_pack_ssat_optab (&optab_table[OTI_vec_pack_ssat])
 557 #define vec_pack_usat_optab (&optab_table[OTI_vec_pack_usat])
 558 #define vec_pack_sfix_trunc_optab (&optab_table[OTI_vec_pack_sfix_trunc])
 559 #define vec_pack_ufix_trunc_optab (&optab_table[OTI_vec_pack_ufix_trunc])
 560
 561 #define powi_optab (&optab_table[OTI_powi])
 562
 563 /* Conversion optabs have their own table and indexes.  */
 564 enum convert_optab_index
 565 {
 566   COI_sext,
 567   COI_zext,
 568   COI_trunc,
 569
 570   COI_sfix,
 571   COI_ufix,
 572
 573   COI_sfixtrunc,
 574   COI_ufixtrunc,
 575
 576   COI_sfloat,
 577   COI_ufloat,
 578
 579   COI_lrint,
 580   COI_lround,
 581   COI_lfloor,
 582   COI_lceil,
 583
 584   COI_fract,
 585   COI_fractuns,
 586   COI_satfract,
 587   COI_satfractuns,
 588
 589   COI_vec_load_lanes,
 590   COI_vec_store_lanes,
 591
 592   COI_MAX
 593 };
 594
 595 #define sext_optab (&convert_optab_table[COI_sext])
 596 #define zext_optab (&convert_optab_table[COI_zext])
 597 #define trunc_optab (&convert_optab_table[COI_trunc])
 598 #define sfix_optab (&convert_optab_table[COI_sfix])
 599 #define ufix_optab (&convert_optab_table[COI_ufix])
 600 #define sfixtrunc_optab (&convert_optab_table[COI_sfixtrunc])
 601 #define ufixtrunc_optab (&convert_optab_table[COI_ufixtrunc])
 602 #define sfloat_optab (&convert_optab_table[COI_sfloat])
 603 #define ufloat_optab (&convert_optab_table[COI_ufloat])
 604 #define lrint_optab (&convert_optab_table[COI_lrint])
 605 #define lround_optab (&convert_optab_table[COI_lround])
 606 #define lfloor_optab (&convert_optab_table[COI_lfloor])
 607 #define lceil_optab (&convert_optab_table[COI_lceil])
 608 #define fract_optab (&convert_optab_table[COI_fract])
 609 #define fractuns_optab (&convert_optab_table[COI_fractuns])
 610 #define satfract_optab (&convert_optab_table[COI_satfract])
 611 #define satfractuns_optab (&convert_optab_table[COI_satfractuns])
 612 #define vec_load_lanes_optab (&convert_optab_table[COI_vec_load_lanes])
 613 #define vec_store_lanes_optab (&convert_optab_table[COI_vec_store_lanes])
 614
 615 /* Contains the optab used for each rtx code.  */
 616 extern optab code_to_optab[NUM_RTX_CODE + 1];
 617
 618 \f
 619 typedef rtx (*rtxfun) (rtx);
 620
 621 /* Enumerates operations that have a named .md pattern associated
 622    with them, but which are not implemented as library functions.  */
 623 enum direct_optab_index
 624 {
 625 #ifdef HAVE_conditional_move
 626   /* Conditional move operations.  */
 627   DOI_movcc,
 628 #endif
 629
 630   /* Operations that use a scratch register to perform input and output
 631      reloads of special objects.  */
 632   DOI_reload_in,
 633   DOI_reload_out,
 634
 635   /* Vector conditional operations.  */
 636   DOI_vcond,
 637   DOI_vcondu,
 638
 639   /* Block move operation.  */
 640   DOI_movmem,
 641
 642   /* Block set operation.  */
 643   DOI_setmem,
 644
 645   /* Various types of block compare operation.  */
 646   DOI_cmpstr,
 647   DOI_cmpstrn,
 648   DOI_cmpmem,
 649
 650   /* Synchronization primitives.  This first set is atomic operation for
 651      which we don't care about the resulting value.  */
 652   DOI_sync_add,
 653   DOI_sync_sub,
 654   DOI_sync_ior,
 655   DOI_sync_and,
 656   DOI_sync_xor,
 657   DOI_sync_nand,
 658
 659   /* This second set is atomic operations in which we return the value
 660      that existed in memory before the operation.  */
 661   DOI_sync_old_add,
 662   DOI_sync_old_sub,
 663   DOI_sync_old_ior,
 664   DOI_sync_old_and,
 665   DOI_sync_old_xor,
 666   DOI_sync_old_nand,
 667
 668   /* This third set is atomic operations in which we return the value
 669      that resulted after performing the operation.  */
 670   DOI_sync_new_add,
 671   DOI_sync_new_sub,
 672   DOI_sync_new_ior,
 673   DOI_sync_new_and,
 674   DOI_sync_new_xor,
 675   DOI_sync_new_nand,
 676
 677   /* Atomic compare and swap.  */
 678   DOI_sync_compare_and_swap,
 679
 680   /* Atomic exchange with acquire semantics.  */
 681   DOI_sync_lock_test_and_set,
 682
 683   /* Atomic clear with release semantics.  */
 684   DOI_sync_lock_release,
 685
 686   DOI_MAX
 687 };
 688
 689 /* A structure that says which insn should be used to perform an operation
 690    in a particular mode.  */
 691 struct direct_optab_d
 692 {
 693   struct optab_handlers handlers[NUM_MACHINE_MODES];
 694 };
 695 typedef struct direct_optab_d *direct_optab;
 696
 697 #ifdef HAVE_conditional_move
 698 #define movcc_optab (&direct_optab_table[(int) DOI_movcc])
 699 #endif
 700 #define reload_in_optab (&direct_optab_table[(int) DOI_reload_in])
 701 #define reload_out_optab (&direct_optab_table[(int) DOI_reload_out])
 702 #define vcond_optab (&direct_optab_table[(int) DOI_vcond])
 703 #define vcondu_optab (&direct_optab_table[(int) DOI_vcondu])
 704 #define movmem_optab (&direct_optab_table[(int) DOI_movmem])
 705 #define setmem_optab (&direct_optab_table[(int) DOI_setmem])
 706 #define cmpstr_optab (&direct_optab_table[(int) DOI_cmpstr])
 707 #define cmpstrn_optab (&direct_optab_table[(int) DOI_cmpstrn])
 708 #define cmpmem_optab (&direct_optab_table[(int) DOI_cmpmem])
 709 #define sync_add_optab (&direct_optab_table[(int) DOI_sync_add])
 710 #define sync_sub_optab (&direct_optab_table[(int) DOI_sync_sub])
 711 #define sync_ior_optab (&direct_optab_table[(int) DOI_sync_ior])
 712 #define sync_and_optab (&direct_optab_table[(int) DOI_sync_and])
 713 #define sync_xor_optab (&direct_optab_table[(int) DOI_sync_xor])
 714 #define sync_nand_optab (&direct_optab_table[(int) DOI_sync_nand])
 715 #define sync_old_add_optab (&direct_optab_table[(int) DOI_sync_old_add])
 716 #define sync_old_sub_optab (&direct_optab_table[(int) DOI_sync_old_sub])
 717 #define sync_old_ior_optab (&direct_optab_table[(int) DOI_sync_old_ior])
 718 #define sync_old_and_optab (&direct_optab_table[(int) DOI_sync_old_and])
 719 #define sync_old_xor_optab (&direct_optab_table[(int) DOI_sync_old_xor])
 720 #define sync_old_nand_optab (&direct_optab_table[(int) DOI_sync_old_nand])
 721 #define sync_new_add_optab (&direct_optab_table[(int) DOI_sync_new_add])
 722 #define sync_new_sub_optab (&direct_optab_table[(int) DOI_sync_new_sub])
 723 #define sync_new_ior_optab (&direct_optab_table[(int) DOI_sync_new_ior])
 724 #define sync_new_and_optab (&direct_optab_table[(int) DOI_sync_new_and])
 725 #define sync_new_xor_optab (&direct_optab_table[(int) DOI_sync_new_xor])
 726 #define sync_new_nand_optab (&direct_optab_table[(int) DOI_sync_new_nand])
 727 #define sync_compare_and_swap_optab \
 728   (&direct_optab_table[(int) DOI_sync_compare_and_swap])
 729 #define sync_lock_test_and_set_optab \
 730   (&direct_optab_table[(int) DOI_sync_lock_test_and_set])
 731 #define sync_lock_release_optab \
 732   (&direct_optab_table[(int) DOI_sync_lock_release])
 733 \f
 734 /* Target-dependent globals.  */
 735 struct target_optabs {
 736   /* Tables of patterns that may have an associated libcall.  */
 737   struct optab_d x_optab_table[(int) OTI_MAX];
 738
 739   /* Tables of patterns for converting one mode to another.  */
 740   struct convert_optab_d x_convert_optab_table[(int) COI_MAX];
 741
 742   /* Tables of patterns for direct optabs (i.e. those which cannot be
 743      implemented using a libcall).  */
 744   struct direct_optab_d x_direct_optab_table[(int) DOI_MAX];
 745 };
 746
 747 extern struct target_optabs default_target_optabs;
 748 #if SWITCHABLE_TARGET
 749 extern struct target_optabs *this_target_optabs;
 750 #else
 751 #define this_target_optabs (&default_target_optabs)
 752 #endif
 753
 754 #define optab_table \
 755   (this_target_optabs->x_optab_table)
 756 #define convert_optab_table \
 757   (this_target_optabs->x_convert_optab_table)
 758 #define direct_optab_table \
 759   (this_target_optabs->x_direct_optab_table)
 760 \f
 761 /* Define functions given in optabs.c.  */
 762
 763 extern rtx expand_widen_pattern_expr (sepops ops, rtx op0, rtx op1, rtx wide_op,
 764                                       rtx target, int unsignedp);
 765
 766 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
 767                               rtx op0, rtx op1, rtx op2, rtx target,
 768                               int unsignedp);
 769
 770 /* Expand a binary operation given optab and rtx operands.  */
 771 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 772                          enum optab_methods);
 773
 774 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 775                                 enum optab_methods);
 776
 777 /* Expand a binary operation with both signed and unsigned forms.  */
 778 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
 779                               rtx, int, enum optab_methods);
 780
 781 /* Generate code to perform an operation on one operand with two results.  */
 782 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
 783
 784 /* Generate code to perform an operation on two operands with two results.  */
 785 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
 786
 787 /* Generate code to perform an operation on two operands with two
 788    results, using a library function.  */
 789 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
 790                                          enum rtx_code);
 791
 792 /* Expand a unary arithmetic operation given optab rtx operand.  */
 793 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
 794
 795 /* Expand the absolute value operation.  */
 796 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
 797 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
 798
 799 /* Expand the one's complement absolute value operation.  */
 800 extern rtx expand_one_cmpl_abs_nojump (enum machine_mode, rtx, rtx);
 801
 802 /* Expand the copysign operation.  */
 803 extern rtx expand_copysign (rtx, rtx, rtx);
 804
 805 /* Generate an instruction with a given INSN_CODE with an output and
 806    an input.  */
 807 extern void emit_unop_insn (enum insn_code, rtx, rtx, enum rtx_code);
 808 extern bool maybe_emit_unop_insn (enum insn_code, rtx, rtx, enum rtx_code);
 809
 810 /* Find a widening optab even if it doesn't widen as much as we want.  */
 811 #define find_widening_optab_handler(A,B,C,D) \
 812   find_widening_optab_handler_and_mode (A, B, C, D, NULL)
 813 extern enum insn_code find_widening_optab_handler_and_mode (optab,
 814                                                             enum machine_mode,
 815                                                             enum machine_mode,
 816                                                             int,
 817                                                             enum machine_mode *);
 818
 819 /* An extra flag to control optab_for_tree_code's behavior.  This is needed to
 820    distinguish between machines with a vector shift that takes a scalar for the
 821    shift amount vs. machines that take a vector for the shift amount.  */
 822 enum optab_subtype
 823 {
 824   optab_default,
 825   optab_scalar,
 826   optab_vector
 827 };
 828
 829 /* Return the optab used for computing the given operation on the type given by
 830    the second argument.  The third argument distinguishes between the types of
 831    vector shifts and rotates */
 832 extern optab optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype);
 833
 834 /* The various uses that a comparison can have; used by can_compare_p:
 835    jumps, conditional moves, store flag operations.  */
 836 enum can_compare_purpose
 837 {
 838   ccp_jump,
 839   ccp_cmov,
 840   ccp_store_flag
 841 };
 842
 843 /* Nonzero if a compare of mode MODE can be done straightforwardly
 844    (without splitting it into pieces).  */
 845 extern int can_compare_p (enum rtx_code, enum machine_mode,
 846                           enum can_compare_purpose);
 847
 848 /* Return the INSN_CODE to use for an extend operation.  */
 849 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
 850
 851 /* Generate the body of an insn to extend Y (with mode MFROM)
 852    into X (with mode MTO).  Do zero-extension if UNSIGNEDP is nonzero.  */
 853 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
 854                             enum machine_mode, int);
 855
 856 /* Call this to reset the function entry for one optab.  */
 857 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
 858 extern void set_conv_libfunc (convert_optab, enum machine_mode,
 859                               enum machine_mode, const char *);
 860
 861 /* Generate code for a FIXED_CONVERT_EXPR.  */
 862 extern void expand_fixed_convert (rtx, rtx, int, int);
 863
 864 /* Generate code for a FLOAT_EXPR.  */
 865 extern void expand_float (rtx, rtx, int);
 866
 867 /* Return the insn_code for a FLOAT_EXPR.  */
 868 enum insn_code can_float_p (enum machine_mode, enum machine_mode, int);
 869
 870 /* Generate code for a FIX_EXPR.  */
 871 extern void expand_fix (rtx, rtx, int);
 872
 873 /* Generate code for float to integral conversion.  */
 874 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
 875
 876 /* Generate code for a widening multiply.  */
 877 extern rtx expand_widening_mult (enum machine_mode, rtx, rtx, rtx, int, optab);
 878
 879 /* Return tree if target supports vector operations for COND_EXPR.  */
 880 bool expand_vec_cond_expr_p (tree, enum machine_mode);
 881
 882 /* Generate code for VEC_COND_EXPR.  */
 883 extern rtx expand_vec_cond_expr (tree, tree, tree, tree, rtx);
 884 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR.  */
 885 extern rtx expand_vec_shift_expr (sepops, rtx);
 886
 887 /* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
 888    if the target does not have such an insn.  */
 889
 890 static inline enum insn_code
 891 optab_handler (optab op, enum machine_mode mode)
 892 {
 893   return (enum insn_code) (op->handlers[(int) mode].insn_code
 894                            + (int) CODE_FOR_nothing);
 895 }
 896
 897 /* Like optab_handler, but for widening_operations that have a TO_MODE and
 898   a FROM_MODE.  */
 899
 900 static inline enum insn_code
 901 widening_optab_handler (optab op, enum machine_mode to_mode,
 902                         enum machine_mode from_mode)
 903 {
 904   if (to_mode == from_mode || from_mode == VOIDmode)
 905     return optab_handler (op, to_mode);
 906
 907   if (op->widening)
 908     return (enum insn_code) (op->widening->handlers[(int) to_mode][(int) from_mode].insn_code
 909                              + (int) CODE_FOR_nothing);
 910
 911   return CODE_FOR_nothing;
 912 }
 913
 914 /* Record that insn CODE should be used to implement mode MODE of OP.  */
 915
 916 static inline void
 917 set_optab_handler (optab op, enum machine_mode mode, enum insn_code code)
 918 {
 919   op->handlers[(int) mode].insn_code = (int) code - (int) CODE_FOR_nothing;
 920 }
 921
 922 /* Like set_optab_handler, but for widening operations that have a TO_MODE
 923    and a FROM_MODE.  */
 924
 925 static inline void
 926 set_widening_optab_handler (optab op, enum machine_mode to_mode,
 927                             enum machine_mode from_mode, enum insn_code code)
 928 {
 929   if (to_mode == from_mode)
 930     set_optab_handler (op, to_mode, code);
 931   else
 932     {
 933       if (op->widening == NULL)
 934         op->widening = (struct widening_optab_handlers *)
 935               xcalloc (1, sizeof (struct widening_optab_handlers));
 936
 937       op->widening->handlers[(int) to_mode][(int) from_mode].insn_code
 938           = (int) code - (int) CODE_FOR_nothing;
 939     }
 940 }
 941
 942 /* Return the insn used to perform conversion OP from mode FROM_MODE
 943    to mode TO_MODE; return CODE_FOR_nothing if the target does not have
 944    such an insn.  */
 945
 946 static inline enum insn_code
 947 convert_optab_handler (convert_optab op, enum machine_mode to_mode,
 948                        enum machine_mode from_mode)
 949 {
 950   return ((enum insn_code)
 951           (op->handlers[(int) to_mode][(int) from_mode].insn_code
 952            + (int) CODE_FOR_nothing));
 953 }
 954
 955 /* Record that insn CODE should be used to perform conversion OP
 956    from mode FROM_MODE to mode TO_MODE.  */
 957
 958 static inline void
 959 set_convert_optab_handler (convert_optab op, enum machine_mode to_mode,
 960                            enum machine_mode from_mode, enum insn_code code)
 961 {
 962   op->handlers[(int) to_mode][(int) from_mode].insn_code
 963     = (int) code - (int) CODE_FOR_nothing;
 964 }
 965
 966 /* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
 967    if the target does not have such an insn.  */
 968
 969 static inline enum insn_code
 970 direct_optab_handler (direct_optab op, enum machine_mode mode)
 971 {
 972   return (enum insn_code) (op->handlers[(int) mode].insn_code
 973                            + (int) CODE_FOR_nothing);
 974 }
 975
 976 /* Record that insn CODE should be used to implement mode MODE of OP.  */
 977
 978 static inline void
 979 set_direct_optab_handler (direct_optab op, enum machine_mode mode,
 980                           enum insn_code code)
 981 {
 982   op->handlers[(int) mode].insn_code = (int) code - (int) CODE_FOR_nothing;
 983 }
 984
 985 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
 986 extern rtx convert_optab_libfunc (convert_optab optab, enum machine_mode mode1,
 987                                   enum machine_mode mode2);
 988
 989 extern bool insn_operand_matches (enum insn_code icode, unsigned int opno,
 990                                   rtx operand);
 991
 992 /* Describes the type of an expand_operand.  Each value is associated
 993    with a create_*_operand function; see the comments above those
 994    functions for details.  */
 995 enum expand_operand_type {
 996   EXPAND_FIXED,
 997   EXPAND_OUTPUT,
 998   EXPAND_INPUT,
 999   EXPAND_CONVERT_TO,
1000   EXPAND_CONVERT_FROM,
1001   EXPAND_ADDRESS,
1002   EXPAND_INTEGER
1003 };
1004
1005 /* Information about an operand for instruction expansion.  */
1006 struct expand_operand {
1007   /* The type of operand.  */
1008   ENUM_BITFIELD (expand_operand_type) type : 8;
1009
1010   /* True if any conversion should treat VALUE as being unsigned
1011      rather than signed.  Only meaningful for certain types.  */
1012   unsigned int unsigned_p : 1;
1013
1014   /* Unused; available for future use.  */
1015   unsigned int unused : 7;
1016
1017   /* The mode passed to the convert_*_operand function.  It has a
1018      type-dependent meaning.  */
1019   ENUM_BITFIELD (machine_mode) mode : 16;
1020
1021   /* The value of the operand.  */
1022   rtx value;
1023 };
1024
1025 /* Initialize OP with the given fields.  Initialise the other fields
1026    to their default values.  */
1027
1028 static inline void
1029 create_expand_operand (struct expand_operand *op,
1030                        enum expand_operand_type type,
1031                        rtx value, enum machine_mode mode,
1032                        bool unsigned_p)
1033 {
1034   op->type = type;
1035   op->unsigned_p = unsigned_p;
1036   op->unused = 0;
1037   op->mode = mode;
1038   op->value = value;
1039 }
1040
1041 /* Make OP describe an operand that must use rtx X, even if X is volatile.  */
1042
1043 static inline void
1044 create_fixed_operand (struct expand_operand *op, rtx x)
1045 {
1046   create_expand_operand (op, EXPAND_FIXED, x, VOIDmode, false);
1047 }
1048
1049 /* Make OP describe an output operand that must have mode MODE.
1050    X, if nonnull, is a suggestion for where the output should be stored.
1051    It is OK for VALUE to be inconsistent with MODE, although it will just
1052    be ignored in that case.  */
1053
1054 static inline void
1055 create_output_operand (struct expand_operand *op, rtx x,
1056                        enum machine_mode mode)
1057 {
1058   create_expand_operand (op, EXPAND_OUTPUT, x, mode, false);
1059 }
1060
1061 /* Make OP describe an input operand that must have mode MODE and
1062    value VALUE; MODE cannot be VOIDmode.  The backend may request that
1063    VALUE be copied into a different kind of rtx before being passed
1064    as an operand.  */
1065
1066 static inline void
1067 create_input_operand (struct expand_operand *op, rtx value,
1068                       enum machine_mode mode)
1069 {
1070   create_expand_operand (op, EXPAND_INPUT, value, mode, false);
1071 }
1072
1073 /* Like create_input_operand, except that VALUE must first be converted
1074    to mode MODE.  UNSIGNED_P says whether VALUE is unsigned.  */
1075
1076 static inline void
1077 create_convert_operand_to (struct expand_operand *op, rtx value,
1078                            enum machine_mode mode, bool unsigned_p)
1079 {
1080   create_expand_operand (op, EXPAND_CONVERT_TO, value, mode, unsigned_p);
1081 }
1082
1083 /* Make OP describe an input operand that should have the same value
1084    as VALUE, after any mode conversion that the backend might request.
1085    If VALUE is a CONST_INT, it should be treated as having mode MODE.
1086    UNSIGNED_P says whether VALUE is unsigned.  */
1087
1088 static inline void
1089 create_convert_operand_from (struct expand_operand *op, rtx value,
1090                              enum machine_mode mode, bool unsigned_p)
1091 {
1092   create_expand_operand (op, EXPAND_CONVERT_FROM, value, mode, unsigned_p);
1093 }
1094
1095 extern void create_convert_operand_from_type (struct expand_operand *op,
1096                                               rtx value, tree type);
1097
1098 /* Make OP describe an input Pmode address operand.  VALUE is the value
1099    of the address, but it may need to be converted to Pmode first.  */
1100
1101 static inline void
1102 create_address_operand (struct expand_operand *op, rtx value)
1103 {
1104   create_expand_operand (op, EXPAND_ADDRESS, value, Pmode, false);
1105 }
1106
1107 /* Make OP describe an input operand that has value INTVAL and that has
1108    no inherent mode.  This function should only be used for operands that
1109    are always expand-time constants.  The backend may request that INTVAL
1110    be copied into a different kind of rtx, but it must specify the mode
1111    of that rtx if so.  */
1112
1113 static inline void
1114 create_integer_operand (struct expand_operand *op, HOST_WIDE_INT intval)
1115 {
1116   create_expand_operand (op, EXPAND_INTEGER, GEN_INT (intval), VOIDmode, false);
1117 }
1118
1119 extern bool valid_multiword_target_p (rtx);
1120
1121 extern bool maybe_legitimize_operands (enum insn_code icode,
1122                                        unsigned int opno, unsigned int nops,
1123                                        struct expand_operand *ops);
1124 extern rtx maybe_gen_insn (enum insn_code icode, unsigned int nops,
1125                            struct expand_operand *ops);
1126 extern bool maybe_expand_insn (enum insn_code icode, unsigned int nops,
1127                                struct expand_operand *ops);
1128 extern bool maybe_expand_jump_insn (enum insn_code icode, unsigned int nops,
1129                                     struct expand_operand *ops);
1130 extern void expand_insn (enum insn_code icode, unsigned int nops,
1131                          struct expand_operand *ops);
1132 extern void expand_jump_insn (enum insn_code icode, unsigned int nops,
1133                               struct expand_operand *ops);
1134
1135 extern rtx prepare_operand (enum insn_code, rtx, int, enum machine_mode,
1136                             enum machine_mode, int);
1137
1138 #endif /* GCC_OPTABS_H */