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