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