gcc/optabs.h

   1 /* Definitions for code generation pass of GNU compiler.
   2    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
   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 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
  43 {
  44   enum insn_code insn_code;
  45 };
  46
  47 struct optab
  48 {
  49   enum rtx_code code;
  50   const char *libcall_basename;
  51   char libcall_suffix;
  52   void (*libcall_gen)(struct optab *, const char *name, char suffix, enum machine_mode);
  53   struct optab_handlers handlers[NUM_MACHINE_MODES];
  54 };
  55 typedef struct optab * optab;
  56
  57 /* A convert_optab is for some sort of conversion operation between
  58    modes.  The first array index is the destination mode, the second
  59    is the source mode.  */
  60 struct convert_optab
  61 {
  62   enum rtx_code code;
  63   const char *libcall_basename;
  64   void (*libcall_gen)(struct convert_optab *, const char *name,
  65                       enum machine_mode,
  66                       enum machine_mode);
  67   struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
  68 };
  69 typedef struct convert_optab *convert_optab;
  70
  71 /* Given an enum insn_code, access the function to construct
  72    the body of that kind of insn.  */
  73 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
  74
  75 /* Enumeration of valid indexes into optab_table.  */
  76 enum optab_index
  77 {
  78   /* Fixed-point operators with signed/unsigned saturation */
  79   OTI_ssadd,
  80   OTI_usadd,
  81   OTI_sssub,
  82   OTI_ussub,
  83   OTI_ssmul,
  84   OTI_usmul,
  85   OTI_ssdiv,
  86   OTI_usdiv,
  87   OTI_ssneg,
  88   OTI_usneg,
  89   OTI_ssashl,
  90   OTI_usashl,
  91
  92   OTI_add,
  93   OTI_addv,
  94   OTI_sub,
  95   OTI_subv,
  96
  97   /* Signed and fp multiply */
  98   OTI_smul,
  99   OTI_smulv,
 100   /* Signed multiply, return high word */
 101   OTI_smul_highpart,
 102   OTI_umul_highpart,
 103   /* Signed multiply with result one machine mode wider than args */
 104   OTI_smul_widen,
 105   OTI_umul_widen,
 106   /* Widening multiply of one unsigned and one signed operand.  */
 107   OTI_usmul_widen,
 108   /* Signed multiply and add with the result and addend one machine mode
 109      wider than the multiplicand and multiplier.  */
 110   OTI_smadd_widen,
 111   /* Unsigned multiply and add with the result and addend one machine mode
 112      wider than the multiplicand and multiplier.  */
 113   OTI_umadd_widen,
 114   /* Signed multiply and add with the result and addend one machine mode
 115      wider than the multiplicand and multiplier.
 116      All involved operations are saturating.  */
 117   OTI_ssmadd_widen,
 118   /* Unigned multiply and add with the result and addend one machine mode
 119      wider than the multiplicand and multiplier.
 120      All involved operations are saturating.  */
 121   OTI_usmadd_widen,
 122   /* Signed multiply and subtract the result and minuend one machine mode
 123      wider than the multiplicand and multiplier.  */
 124   OTI_smsub_widen,
 125   /* Unsigned multiply and subtract the result and minuend one machine mode
 126      wider than the multiplicand and multiplier.  */
 127   OTI_umsub_widen,
 128   /* Signed multiply and subtract the result and minuend one machine mode
 129      wider than the multiplicand and multiplier.
 130      All involved operations are saturating.  */
 131   OTI_ssmsub_widen,
 132   /* Unigned multiply and subtract the result and minuend one machine mode
 133      wider than the multiplicand and multiplier.
 134      All involved operations are saturating.  */
 135   OTI_usmsub_widen,
 136
 137   /* Signed divide */
 138   OTI_sdiv,
 139   OTI_sdivv,
 140   /* Signed divide-and-remainder in one */
 141   OTI_sdivmod,
 142   OTI_udiv,
 143   OTI_udivmod,
 144   /* Signed remainder */
 145   OTI_smod,
 146   OTI_umod,
 147   /* Floating point remainder functions */
 148   OTI_fmod,
 149   OTI_remainder,
 150   /* Convert float to integer in float fmt */
 151   OTI_ftrunc,
 152
 153   /* Logical and */
 154   OTI_and,
 155   /* Logical or */
 156   OTI_ior,
 157   /* Logical xor */
 158   OTI_xor,
 159
 160   /* Arithmetic shift left */
 161   OTI_ashl,
 162   /* Logical shift right */
 163   OTI_lshr,
 164   /* Arithmetic shift right */
 165   OTI_ashr,
 166   /* Rotate left */
 167   OTI_rotl,
 168   /* Rotate right */
 169   OTI_rotr,
 170   /* Signed and floating-point minimum value */
 171   OTI_smin,
 172   /* Signed and floating-point maximum value */
 173   OTI_smax,
 174   /* Unsigned minimum value */
 175   OTI_umin,
 176   /* Unsigned maximum value */
 177   OTI_umax,
 178   /* Power */
 179   OTI_pow,
 180   /* Arc tangent of y/x */
 181   OTI_atan2,
 182
 183   /* Move instruction.  */
 184   OTI_mov,
 185   /* Move, preserving high part of register.  */
 186   OTI_movstrict,
 187   /* Move, with a misaligned memory.  */
 188   OTI_movmisalign,
 189   /* Nontemporal store.  */
 190   OTI_storent,
 191
 192   /* Unary operations */
 193   /* Negation */
 194   OTI_neg,
 195   OTI_negv,
 196   /* Abs value */
 197   OTI_abs,
 198   OTI_absv,
 199   /* Byteswap */
 200   OTI_bswap,
 201   /* Bitwise not */
 202   OTI_one_cmpl,
 203   /* Bit scanning and counting */
 204   OTI_ffs,
 205   OTI_clz,
 206   OTI_ctz,
 207   OTI_popcount,
 208   OTI_parity,
 209   /* Square root */
 210   OTI_sqrt,
 211   /* Sine-Cosine */
 212   OTI_sincos,
 213   /* Sine */
 214   OTI_sin,
 215   /* Inverse sine */
 216   OTI_asin,
 217   /* Cosine */
 218   OTI_cos,
 219   /* Inverse cosine */
 220   OTI_acos,
 221   /* Exponential */
 222   OTI_exp,
 223   /* Base-10 Exponential */
 224   OTI_exp10,
 225   /* Base-2 Exponential */
 226   OTI_exp2,
 227   /* Exponential - 1*/
 228   OTI_expm1,
 229   /* Load exponent of a floating point number */
 230   OTI_ldexp,
 231   /* Multiply floating-point number by integral power of radix */
 232   OTI_scalb,
 233   /* Radix-independent exponent */
 234   OTI_logb,
 235   OTI_ilogb,
 236   /* Natural Logarithm */
 237   OTI_log,
 238   /* Base-10 Logarithm */
 239   OTI_log10,
 240   /* Base-2 Logarithm */
 241   OTI_log2,
 242   /* logarithm of 1 plus argument */
 243   OTI_log1p,
 244   /* Rounding functions */
 245   OTI_floor,
 246   OTI_ceil,
 247   OTI_btrunc,
 248   OTI_round,
 249   OTI_nearbyint,
 250   OTI_rint,
 251   /* Tangent */
 252   OTI_tan,
 253   /* Inverse tangent */
 254   OTI_atan,
 255   /* Copy sign */
 256   OTI_copysign,
 257   /* Signbit */
 258   OTI_signbit,
 259   /* Test for infinite value */
 260   OTI_isinf,
 261
 262   /* Compare insn; two operands.  */
 263   OTI_cmp,
 264   /* Used only for libcalls for unsigned comparisons.  */
 265   OTI_ucmp,
 266   /* tst insn; compare one operand against 0 */
 267   OTI_tst,
 268
 269   /* Floating point comparison optabs - used primarily for libfuncs */
 270   OTI_eq,
 271   OTI_ne,
 272   OTI_gt,
 273   OTI_ge,
 274   OTI_lt,
 275   OTI_le,
 276   OTI_unord,
 277
 278   /* String length */
 279   OTI_strlen,
 280
 281   /* Combined compare & jump/store flags/move operations.  */
 282   OTI_cbranch,
 283   OTI_cmov,
 284   OTI_cstore,
 285
 286   /* Push instruction.  */
 287   OTI_push,
 288
 289   /* Conditional add instruction.  */
 290   OTI_addcc,
 291
 292   /* Reduction operations on a vector operand.  */
 293   OTI_reduc_smax,
 294   OTI_reduc_umax,
 295   OTI_reduc_smin,
 296   OTI_reduc_umin,
 297   OTI_reduc_splus,
 298   OTI_reduc_uplus,
 299
 300   /* Summation, with result machine mode one or more wider than args.  */
 301   OTI_ssum_widen,
 302   OTI_usum_widen,
 303
 304   /* Dot product, with result machine mode one or more wider than args.  */
 305   OTI_sdot_prod,
 306   OTI_udot_prod,
 307
 308   /* Set specified field of vector operand.  */
 309   OTI_vec_set,
 310   /* Extract specified field of vector operand.  */
 311   OTI_vec_extract,
 312   /* Extract even/odd fields of vector operands.  */
 313   OTI_vec_extract_even,
 314   OTI_vec_extract_odd,
 315   /* Interleave fields of vector operands.  */
 316   OTI_vec_interleave_high,
 317   OTI_vec_interleave_low,
 318   /* Initialize vector operand.  */
 319   OTI_vec_init,
 320   /* Whole vector shift. The shift amount is in bits.  */
 321   OTI_vec_shl,
 322   OTI_vec_shr,
 323   /* Extract specified elements from vectors, for vector load.  */
 324   OTI_vec_realign_load,
 325   /* Widening multiplication.
 326      The high/low part of the resulting vector of products is returned.  */
 327   OTI_vec_widen_umult_hi,
 328   OTI_vec_widen_umult_lo,
 329   OTI_vec_widen_smult_hi,
 330   OTI_vec_widen_smult_lo,
 331   /* Extract and widen the high/low part of a vector of signed or
 332      floating point elements.  */
 333   OTI_vec_unpacks_hi,
 334   OTI_vec_unpacks_lo,
 335   /* Extract and widen the high/low part of a vector of unsigned
 336      elements.  */
 337   OTI_vec_unpacku_hi,
 338   OTI_vec_unpacku_lo,
 339
 340   /* Extract, convert to floating point and widen the high/low part of
 341      a vector of signed or unsigned integer elements.  */
 342   OTI_vec_unpacks_float_hi,
 343   OTI_vec_unpacks_float_lo,
 344   OTI_vec_unpacku_float_hi,
 345   OTI_vec_unpacku_float_lo,
 346
 347   /* Narrow (demote) and merge the elements of two vectors.  */
 348   OTI_vec_pack_trunc,
 349   OTI_vec_pack_usat,
 350   OTI_vec_pack_ssat,
 351
 352   /* Convert to signed/unsigned integer, narrow and merge elements
 353      of two vectors of floating point elements.  */
 354   OTI_vec_pack_sfix_trunc,
 355   OTI_vec_pack_ufix_trunc,
 356
 357   /* Perform a raise to the power of integer.  */
 358   OTI_powi,
 359
 360   OTI_MAX
 361 };
 362
 363 extern optab optab_table[OTI_MAX];
 364
 365 #define ssadd_optab (optab_table[OTI_ssadd])
 366 #define usadd_optab (optab_table[OTI_usadd])
 367 #define sssub_optab (optab_table[OTI_sssub])
 368 #define ussub_optab (optab_table[OTI_ussub])
 369 #define ssmul_optab (optab_table[OTI_ssmul])
 370 #define usmul_optab (optab_table[OTI_usmul])
 371 #define ssdiv_optab (optab_table[OTI_ssdiv])
 372 #define usdiv_optab (optab_table[OTI_usdiv])
 373 #define ssneg_optab (optab_table[OTI_ssneg])
 374 #define usneg_optab (optab_table[OTI_usneg])
 375 #define ssashl_optab (optab_table[OTI_ssashl])
 376 #define usashl_optab (optab_table[OTI_usashl])
 377
 378 #define add_optab (optab_table[OTI_add])
 379 #define sub_optab (optab_table[OTI_sub])
 380 #define smul_optab (optab_table[OTI_smul])
 381 #define addv_optab (optab_table[OTI_addv])
 382 #define subv_optab (optab_table[OTI_subv])
 383 #define smul_highpart_optab (optab_table[OTI_smul_highpart])
 384 #define umul_highpart_optab (optab_table[OTI_umul_highpart])
 385 #define smul_widen_optab (optab_table[OTI_smul_widen])
 386 #define umul_widen_optab (optab_table[OTI_umul_widen])
 387 #define usmul_widen_optab (optab_table[OTI_usmul_widen])
 388 #define smadd_widen_optab (optab_table[OTI_smadd_widen])
 389 #define umadd_widen_optab (optab_table[OTI_umadd_widen])
 390 #define ssmadd_widen_optab (optab_table[OTI_ssmadd_widen])
 391 #define usmadd_widen_optab (optab_table[OTI_usmadd_widen])
 392 #define smsub_widen_optab (optab_table[OTI_smsub_widen])
 393 #define umsub_widen_optab (optab_table[OTI_umsub_widen])
 394 #define ssmsub_widen_optab (optab_table[OTI_ssmsub_widen])
 395 #define usmsub_widen_optab (optab_table[OTI_usmsub_widen])
 396 #define sdiv_optab (optab_table[OTI_sdiv])
 397 #define smulv_optab (optab_table[OTI_smulv])
 398 #define sdivv_optab (optab_table[OTI_sdivv])
 399 #define sdivmod_optab (optab_table[OTI_sdivmod])
 400 #define udiv_optab (optab_table[OTI_udiv])
 401 #define udivmod_optab (optab_table[OTI_udivmod])
 402 #define smod_optab (optab_table[OTI_smod])
 403 #define umod_optab (optab_table[OTI_umod])
 404 #define fmod_optab (optab_table[OTI_fmod])
 405 #define remainder_optab (optab_table[OTI_remainder])
 406 #define ftrunc_optab (optab_table[OTI_ftrunc])
 407 #define and_optab (optab_table[OTI_and])
 408 #define ior_optab (optab_table[OTI_ior])
 409 #define xor_optab (optab_table[OTI_xor])
 410 #define ashl_optab (optab_table[OTI_ashl])
 411 #define lshr_optab (optab_table[OTI_lshr])
 412 #define ashr_optab (optab_table[OTI_ashr])
 413 #define rotl_optab (optab_table[OTI_rotl])
 414 #define rotr_optab (optab_table[OTI_rotr])
 415 #define smin_optab (optab_table[OTI_smin])
 416 #define smax_optab (optab_table[OTI_smax])
 417 #define umin_optab (optab_table[OTI_umin])
 418 #define umax_optab (optab_table[OTI_umax])
 419 #define pow_optab (optab_table[OTI_pow])
 420 #define atan2_optab (optab_table[OTI_atan2])
 421
 422 #define mov_optab (optab_table[OTI_mov])
 423 #define movstrict_optab (optab_table[OTI_movstrict])
 424 #define movmisalign_optab (optab_table[OTI_movmisalign])
 425 #define storent_optab (optab_table[OTI_storent])
 426
 427 #define neg_optab (optab_table[OTI_neg])
 428 #define negv_optab (optab_table[OTI_negv])
 429 #define abs_optab (optab_table[OTI_abs])
 430 #define absv_optab (optab_table[OTI_absv])
 431 #define one_cmpl_optab (optab_table[OTI_one_cmpl])
 432 #define bswap_optab (optab_table[OTI_bswap])
 433 #define ffs_optab (optab_table[OTI_ffs])
 434 #define clz_optab (optab_table[OTI_clz])
 435 #define ctz_optab (optab_table[OTI_ctz])
 436 #define popcount_optab (optab_table[OTI_popcount])
 437 #define parity_optab (optab_table[OTI_parity])
 438 #define sqrt_optab (optab_table[OTI_sqrt])
 439 #define sincos_optab (optab_table[OTI_sincos])
 440 #define sin_optab (optab_table[OTI_sin])
 441 #define asin_optab (optab_table[OTI_asin])
 442 #define cos_optab (optab_table[OTI_cos])
 443 #define acos_optab (optab_table[OTI_acos])
 444 #define exp_optab (optab_table[OTI_exp])
 445 #define exp10_optab (optab_table[OTI_exp10])
 446 #define exp2_optab (optab_table[OTI_exp2])
 447 #define expm1_optab (optab_table[OTI_expm1])
 448 #define ldexp_optab (optab_table[OTI_ldexp])
 449 #define scalb_optab (optab_table[OTI_scalb])
 450 #define logb_optab (optab_table[OTI_logb])
 451 #define ilogb_optab (optab_table[OTI_ilogb])
 452 #define log_optab (optab_table[OTI_log])
 453 #define log10_optab (optab_table[OTI_log10])
 454 #define log2_optab (optab_table[OTI_log2])
 455 #define log1p_optab (optab_table[OTI_log1p])
 456 #define floor_optab (optab_table[OTI_floor])
 457 #define ceil_optab (optab_table[OTI_ceil])
 458 #define btrunc_optab (optab_table[OTI_btrunc])
 459 #define round_optab (optab_table[OTI_round])
 460 #define nearbyint_optab (optab_table[OTI_nearbyint])
 461 #define rint_optab (optab_table[OTI_rint])
 462 #define tan_optab (optab_table[OTI_tan])
 463 #define atan_optab (optab_table[OTI_atan])
 464 #define copysign_optab (optab_table[OTI_copysign])
 465 #define signbit_optab (optab_table[OTI_signbit])
 466 #define isinf_optab (optab_table[OTI_isinf])
 467
 468 #define cmp_optab (optab_table[OTI_cmp])
 469 #define ucmp_optab (optab_table[OTI_ucmp])
 470 #define tst_optab (optab_table[OTI_tst])
 471
 472 #define eq_optab (optab_table[OTI_eq])
 473 #define ne_optab (optab_table[OTI_ne])
 474 #define gt_optab (optab_table[OTI_gt])
 475 #define ge_optab (optab_table[OTI_ge])
 476 #define lt_optab (optab_table[OTI_lt])
 477 #define le_optab (optab_table[OTI_le])
 478 #define unord_optab (optab_table[OTI_unord])
 479
 480 #define strlen_optab (optab_table[OTI_strlen])
 481
 482 #define cbranch_optab (optab_table[OTI_cbranch])
 483 #define cmov_optab (optab_table[OTI_cmov])
 484 #define cstore_optab (optab_table[OTI_cstore])
 485 #define push_optab (optab_table[OTI_push])
 486 #define addcc_optab (optab_table[OTI_addcc])
 487
 488 #define reduc_smax_optab (optab_table[OTI_reduc_smax])
 489 #define reduc_umax_optab (optab_table[OTI_reduc_umax])
 490 #define reduc_smin_optab (optab_table[OTI_reduc_smin])
 491 #define reduc_umin_optab (optab_table[OTI_reduc_umin])
 492 #define reduc_splus_optab (optab_table[OTI_reduc_splus])
 493 #define reduc_uplus_optab (optab_table[OTI_reduc_uplus])
 494
 495 #define ssum_widen_optab (optab_table[OTI_ssum_widen])
 496 #define usum_widen_optab (optab_table[OTI_usum_widen])
 497 #define sdot_prod_optab (optab_table[OTI_sdot_prod])
 498 #define udot_prod_optab (optab_table[OTI_udot_prod])
 499
 500 #define vec_set_optab (optab_table[OTI_vec_set])
 501 #define vec_extract_optab (optab_table[OTI_vec_extract])
 502 #define vec_extract_even_optab (optab_table[OTI_vec_extract_even])
 503 #define vec_extract_odd_optab (optab_table[OTI_vec_extract_odd])
 504 #define vec_interleave_high_optab (optab_table[OTI_vec_interleave_high])
 505 #define vec_interleave_low_optab (optab_table[OTI_vec_interleave_low])
 506 #define vec_init_optab (optab_table[OTI_vec_init])
 507 #define vec_shl_optab (optab_table[OTI_vec_shl])
 508 #define vec_shr_optab (optab_table[OTI_vec_shr])
 509 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
 510 #define vec_widen_umult_hi_optab (optab_table[OTI_vec_widen_umult_hi])
 511 #define vec_widen_umult_lo_optab (optab_table[OTI_vec_widen_umult_lo])
 512 #define vec_widen_smult_hi_optab (optab_table[OTI_vec_widen_smult_hi])
 513 #define vec_widen_smult_lo_optab (optab_table[OTI_vec_widen_smult_lo])
 514 #define vec_unpacks_hi_optab (optab_table[OTI_vec_unpacks_hi])
 515 #define vec_unpacks_lo_optab (optab_table[OTI_vec_unpacks_lo])
 516 #define vec_unpacku_hi_optab (optab_table[OTI_vec_unpacku_hi])
 517 #define vec_unpacku_lo_optab (optab_table[OTI_vec_unpacku_lo])
 518 #define vec_unpacks_float_hi_optab (optab_table[OTI_vec_unpacks_float_hi])
 519 #define vec_unpacks_float_lo_optab (optab_table[OTI_vec_unpacks_float_lo])
 520 #define vec_unpacku_float_hi_optab (optab_table[OTI_vec_unpacku_float_hi])
 521 #define vec_unpacku_float_lo_optab (optab_table[OTI_vec_unpacku_float_lo])
 522 #define vec_pack_trunc_optab (optab_table[OTI_vec_pack_trunc])
 523 #define vec_pack_ssat_optab (optab_table[OTI_vec_pack_ssat])
 524 #define vec_pack_usat_optab (optab_table[OTI_vec_pack_usat])
 525 #define vec_pack_sfix_trunc_optab (optab_table[OTI_vec_pack_sfix_trunc])
 526 #define vec_pack_ufix_trunc_optab (optab_table[OTI_vec_pack_ufix_trunc])
 527
 528 #define powi_optab (optab_table[OTI_powi])
 529
 530 /* Conversion optabs have their own table and indexes.  */
 531 enum convert_optab_index
 532 {
 533   COI_sext,
 534   COI_zext,
 535   COI_trunc,
 536
 537   COI_sfix,
 538   COI_ufix,
 539
 540   COI_sfixtrunc,
 541   COI_ufixtrunc,
 542
 543   COI_sfloat,
 544   COI_ufloat,
 545
 546   COI_lrint,
 547   COI_lround,
 548   COI_lfloor,
 549   COI_lceil,
 550
 551   COI_fract,
 552   COI_fractuns,
 553   COI_satfract,
 554   COI_satfractuns,
 555
 556   COI_MAX
 557 };
 558
 559 extern convert_optab convert_optab_table[COI_MAX];
 560
 561 #define sext_optab (convert_optab_table[COI_sext])
 562 #define zext_optab (convert_optab_table[COI_zext])
 563 #define trunc_optab (convert_optab_table[COI_trunc])
 564 #define sfix_optab (convert_optab_table[COI_sfix])
 565 #define ufix_optab (convert_optab_table[COI_ufix])
 566 #define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc])
 567 #define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc])
 568 #define sfloat_optab (convert_optab_table[COI_sfloat])
 569 #define ufloat_optab (convert_optab_table[COI_ufloat])
 570 #define lrint_optab (convert_optab_table[COI_lrint])
 571 #define lround_optab (convert_optab_table[COI_lround])
 572 #define lfloor_optab (convert_optab_table[COI_lfloor])
 573 #define lceil_optab (convert_optab_table[COI_lceil])
 574 #define fract_optab (convert_optab_table[COI_fract])
 575 #define fractuns_optab (convert_optab_table[COI_fractuns])
 576 #define satfract_optab (convert_optab_table[COI_satfract])
 577 #define satfractuns_optab (convert_optab_table[COI_satfractuns])
 578
 579 /* These arrays record the insn_code of insns that may be needed to
 580    perform input and output reloads of special objects.  They provide a
 581    place to pass a scratch register.  */
 582 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES];
 583 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES];
 584
 585 /* Contains the optab used for each rtx code.  */
 586 extern optab code_to_optab[NUM_RTX_CODE + 1];
 587
 588 \f
 589 typedef rtx (*rtxfun) (rtx);
 590
 591 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
 592    gives the gen_function to make a branch to test that condition.  */
 593
 594 extern rtxfun bcc_gen_fctn[NUM_RTX_CODE];
 595
 596 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
 597    gives the insn code to make a store-condition insn
 598    to test that condition.  */
 599
 600 extern enum insn_code setcc_gen_code[NUM_RTX_CODE];
 601
 602 #ifdef HAVE_conditional_move
 603 /* Indexed by the machine mode, gives the insn code to make a conditional
 604    move insn.  */
 605
 606 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
 607 #endif
 608
 609 /* Indexed by the machine mode, gives the insn code for vector conditional
 610    operation.  */
 611
 612 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
 613 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
 614
 615 /* This array records the insn_code of insns to perform block moves.  */
 616 extern enum insn_code movmem_optab[NUM_MACHINE_MODES];
 617
 618 /* This array records the insn_code of insns to perform block sets.  */
 619 extern enum insn_code setmem_optab[NUM_MACHINE_MODES];
 620
 621 /* These arrays record the insn_code of two different kinds of insns
 622    to perform block compares.  */
 623 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES];
 624 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES];
 625 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
 626
 627 /* Synchronization primitives.  This first set is atomic operation for
 628    which we don't care about the resulting value.  */
 629 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
 630 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
 631 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
 632 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
 633 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
 634 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
 635
 636 /* This second set is atomic operations in which we return the value
 637    that existed in memory before the operation.  */
 638 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
 639 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
 640 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
 641 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
 642 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
 643 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
 644
 645 /* This third set is atomic operations in which we return the value
 646    that resulted after performing the operation.  */
 647 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
 648 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
 649 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
 650 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
 651 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
 652 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
 653
 654 /* Atomic compare and swap.  */
 655 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
 656 extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES];
 657
 658 /* Atomic exchange with acquire semantics.  */
 659 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
 660
 661 /* Atomic clear with release semantics.  */
 662 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
 663
 664 /* Define functions given in optabs.c.  */
 665
 666 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
 667                                       rtx target, int unsignedp);
 668
 669 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
 670                               rtx op0, rtx op1, rtx op2, rtx target,
 671                               int unsignedp);
 672
 673 /* Expand a binary operation given optab and rtx operands.  */
 674 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 675                          enum optab_methods);
 676
 677 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 678                                 enum optab_methods);
 679
 680 /* Expand a binary operation with both signed and unsigned forms.  */
 681 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
 682                               rtx, int, enum optab_methods);
 683
 684 /* Generate code to perform an operation on one operand with two results.  */
 685 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
 686
 687 /* Generate code to perform an operation on two operands with two results.  */
 688 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
 689
 690 /* Generate code to perform an operation on two operands with two
 691    results, using a library function.  */
 692 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
 693                                          enum rtx_code);
 694
 695 /* Expand a unary arithmetic operation given optab rtx operand.  */
 696 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
 697
 698 /* Expand the absolute value operation.  */
 699 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
 700 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
 701
 702 /* Expand the copysign operation.  */
 703 extern rtx expand_copysign (rtx, rtx, rtx);
 704
 705 /* Generate an instruction with a given INSN_CODE with an output and
 706    an input.  */
 707 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code);
 708
 709 /* Excapsulate the block in REG_LIBCALL, and REG_RETVAL reg notes and add
 710    REG_LIBCALL_ID notes to all insns in block.  */
 711 extern void maybe_encapsulate_block (rtx, rtx, rtx);
 712
 713 /* Emit code to perform a series of operations on a multi-word quantity, one
 714    word at a time.  */
 715 extern rtx emit_no_conflict_block (rtx, rtx, rtx, rtx, rtx);
 716
 717 /* Emit one rtl insn to compare two rtx's.  */
 718 extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode,
 719                            int);
 720
 721 /* The various uses that a comparison can have; used by can_compare_p:
 722    jumps, conditional moves, store flag operations.  */
 723 enum can_compare_purpose
 724 {
 725   ccp_jump,
 726   ccp_cmov,
 727   ccp_store_flag
 728 };
 729
 730 /* Return the optab used for computing the given operation on the type
 731    given by the second argument.  */
 732 extern optab optab_for_tree_code (enum tree_code, const_tree);
 733
 734 /* Nonzero if a compare of mode MODE can be done straightforwardly
 735    (without splitting it into pieces).  */
 736 extern int can_compare_p (enum rtx_code, enum machine_mode,
 737                           enum can_compare_purpose);
 738
 739 /* Return the INSN_CODE to use for an extend operation.  */
 740 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
 741
 742 /* Generate the body of an insn to extend Y (with mode MFROM)
 743    into X (with mode MTO).  Do zero-extension if UNSIGNEDP is nonzero.  */
 744 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
 745                             enum machine_mode, int);
 746
 747 /* Call this to reset the function entry for one optab.  */
 748 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
 749 extern void set_conv_libfunc (convert_optab, enum machine_mode,
 750                               enum machine_mode, const char *);
 751
 752 /* Generate code for a FIXED_CONVERT_EXPR.  */
 753 extern void expand_fixed_convert (rtx, rtx, int, int);
 754
 755 /* Generate code for a FLOAT_EXPR.  */
 756 extern void expand_float (rtx, rtx, int);
 757
 758 /* Generate code for a FIX_EXPR.  */
 759 extern void expand_fix (rtx, rtx, int);
 760
 761 /* Generate code for float to integral conversion.  */
 762 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
 763
 764 /* Return tree if target supports vector operations for COND_EXPR.  */
 765 bool expand_vec_cond_expr_p (tree, enum machine_mode);
 766
 767 /* Generate code for VEC_COND_EXPR.  */
 768 extern rtx expand_vec_cond_expr (tree, rtx);
 769
 770 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR.  */
 771 extern rtx expand_vec_shift_expr (tree, rtx);
 772
 773 #define optab_handler(optab,mode) (&(optab)->handlers[(int) (mode)])
 774 #define convert_optab_handler(optab,mode,mode2) \
 775         (&(optab)->handlers[(int) (mode)][(int) (mode2)])
 776
 777 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
 778 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
 779 extern rtx convert_optab_libfunc (convert_optab optab, enum machine_mode mode1,
 780                                   enum machine_mode mode2);
 781 #endif /* GCC_OPTABS_H */