gcc/optabs.h

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