tcg/tcg-op-vec.c

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2018 Linaro, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "cpu.h"
  22 #include "tcg/tcg.h"
  23 #include "tcg/tcg-op.h"
  24 #include "tcg/tcg-mo.h"
  25
  26 /* Reduce the number of ifdefs below.  This assumes that all uses of
  27    TCGV_HIGH and TCGV_LOW are properly protected by a conditional that
  28    the compiler can eliminate.  */
  29 #if TCG_TARGET_REG_BITS == 64
  30 extern TCGv_i32 TCGV_LOW_link_error(TCGv_i64);
  31 extern TCGv_i32 TCGV_HIGH_link_error(TCGv_i64);
  32 #define TCGV_LOW  TCGV_LOW_link_error
  33 #define TCGV_HIGH TCGV_HIGH_link_error
  34 #endif
  35
  36 /*
  37  * Vector optional opcode tracking.
  38  * Except for the basic logical operations (and, or, xor), and
  39  * data movement (mov, ld, st, dupi), many vector opcodes are
  40  * optional and may not be supported on the host.  Thank Intel
  41  * for the irregularity in their instruction set.
  42  *
  43  * The gvec expanders allow custom vector operations to be composed,
  44  * generally via the .fniv callback in the GVecGen* structures.  At
  45  * the same time, in deciding whether to use this hook we need to
  46  * know if the host supports the required operations.  This is
  47  * presented as an array of opcodes, terminated by 0.  Each opcode
  48  * is assumed to be expanded with the given VECE.
  49  *
  50  * For debugging, we want to validate this array.  Therefore, when
  51  * tcg_ctx->vec_opt_opc is non-NULL, the tcg_gen_*_vec expanders
  52  * will validate that their opcode is present in the list.
  53  */
  54 #ifdef CONFIG_DEBUG_TCG
  55 void tcg_assert_listed_vecop(TCGOpcode op)
  56 {
  57     const TCGOpcode *p = tcg_ctx->vecop_list;
  58     if (p) {
  59         for (; *p; ++p) {
  60             if (*p == op) {
  61                 return;
  62             }
  63         }
  64         g_assert_not_reached();
  65     }
  66 }
  67 #endif
  68
  69 bool tcg_can_emit_vecop_list(const TCGOpcode *list,
  70                              TCGType type, unsigned vece)
  71 {
  72     if (list == NULL) {
  73         return true;
  74     }
  75
  76     for (; *list; ++list) {
  77         TCGOpcode opc = *list;
  78
  79 #ifdef CONFIG_DEBUG_TCG
  80         switch (opc) {
  81         case INDEX_op_and_vec:
  82         case INDEX_op_or_vec:
  83         case INDEX_op_xor_vec:
  84         case INDEX_op_mov_vec:
  85         case INDEX_op_dup_vec:
  86         case INDEX_op_dupi_vec:
  87         case INDEX_op_dup2_vec:
  88         case INDEX_op_ld_vec:
  89         case INDEX_op_st_vec:
  90         case INDEX_op_bitsel_vec:
  91             /* These opcodes are mandatory and should not be listed.  */
  92             g_assert_not_reached();
  93         case INDEX_op_not_vec:
  94             /* These opcodes have generic expansions using the above.  */
  95             g_assert_not_reached();
  96         default:
  97             break;
  98         }
  99 #endif
 100
 101         if (tcg_can_emit_vec_op(opc, type, vece)) {
 102             continue;
 103         }
 104
 105         /*
 106          * The opcode list is created by front ends based on what they
 107          * actually invoke.  We must mirror the logic in the routines
 108          * below for generic expansions using other opcodes.
 109          */
 110         switch (opc) {
 111         case INDEX_op_neg_vec:
 112             if (tcg_can_emit_vec_op(INDEX_op_sub_vec, type, vece)) {
 113                 continue;
 114             }
 115             break;
 116         case INDEX_op_abs_vec:
 117             if (tcg_can_emit_vec_op(INDEX_op_sub_vec, type, vece)
 118                 && (tcg_can_emit_vec_op(INDEX_op_smax_vec, type, vece) > 0
 119                     || tcg_can_emit_vec_op(INDEX_op_sari_vec, type, vece) > 0
 120                     || tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece))) {
 121                 continue;
 122             }
 123             break;
 124         case INDEX_op_cmpsel_vec:
 125         case INDEX_op_smin_vec:
 126         case INDEX_op_smax_vec:
 127         case INDEX_op_umin_vec:
 128         case INDEX_op_umax_vec:
 129             if (tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece)) {
 130                 continue;
 131             }
 132             break;
 133         default:
 134             break;
 135         }
 136         return false;
 137     }
 138     return true;
 139 }
 140
 141 void vec_gen_2(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a)
 142 {
 143     TCGOp *op = tcg_emit_op(opc);
 144     TCGOP_VECL(op) = type - TCG_TYPE_V64;
 145     TCGOP_VECE(op) = vece;
 146     op->args[0] = r;
 147     op->args[1] = a;
 148 }
 149
 150 void vec_gen_3(TCGOpcode opc, TCGType type, unsigned vece,
 151                TCGArg r, TCGArg a, TCGArg b)
 152 {
 153     TCGOp *op = tcg_emit_op(opc);
 154     TCGOP_VECL(op) = type - TCG_TYPE_V64;
 155     TCGOP_VECE(op) = vece;
 156     op->args[0] = r;
 157     op->args[1] = a;
 158     op->args[2] = b;
 159 }
 160
 161 void vec_gen_4(TCGOpcode opc, TCGType type, unsigned vece,
 162                TCGArg r, TCGArg a, TCGArg b, TCGArg c)
 163 {
 164     TCGOp *op = tcg_emit_op(opc);
 165     TCGOP_VECL(op) = type - TCG_TYPE_V64;
 166     TCGOP_VECE(op) = vece;
 167     op->args[0] = r;
 168     op->args[1] = a;
 169     op->args[2] = b;
 170     op->args[3] = c;
 171 }
 172
 173 static void vec_gen_6(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r,
 174                       TCGArg a, TCGArg b, TCGArg c, TCGArg d, TCGArg e)
 175 {
 176     TCGOp *op = tcg_emit_op(opc);
 177     TCGOP_VECL(op) = type - TCG_TYPE_V64;
 178     TCGOP_VECE(op) = vece;
 179     op->args[0] = r;
 180     op->args[1] = a;
 181     op->args[2] = b;
 182     op->args[3] = c;
 183     op->args[4] = d;
 184     op->args[5] = e;
 185 }
 186
 187 static void vec_gen_op2(TCGOpcode opc, unsigned vece, TCGv_vec r, TCGv_vec a)
 188 {
 189     TCGTemp *rt = tcgv_vec_temp(r);
 190     TCGTemp *at = tcgv_vec_temp(a);
 191     TCGType type = rt->base_type;
 192
 193     /* Must enough inputs for the output.  */
 194     tcg_debug_assert(at->base_type >= type);
 195     vec_gen_2(opc, type, vece, temp_arg(rt), temp_arg(at));
 196 }
 197
 198 static void vec_gen_op3(TCGOpcode opc, unsigned vece,
 199                         TCGv_vec r, TCGv_vec a, TCGv_vec b)
 200 {
 201     TCGTemp *rt = tcgv_vec_temp(r);
 202     TCGTemp *at = tcgv_vec_temp(a);
 203     TCGTemp *bt = tcgv_vec_temp(b);
 204     TCGType type = rt->base_type;
 205
 206     /* Must enough inputs for the output.  */
 207     tcg_debug_assert(at->base_type >= type);
 208     tcg_debug_assert(bt->base_type >= type);
 209     vec_gen_3(opc, type, vece, temp_arg(rt), temp_arg(at), temp_arg(bt));
 210 }
 211
 212 void tcg_gen_mov_vec(TCGv_vec r, TCGv_vec a)
 213 {
 214     if (r != a) {
 215         vec_gen_op2(INDEX_op_mov_vec, 0, r, a);
 216     }
 217 }
 218
 219 #define MO_REG  (TCG_TARGET_REG_BITS == 64 ? MO_64 : MO_32)
 220
 221 static void do_dupi_vec(TCGv_vec r, unsigned vece, TCGArg a)
 222 {
 223     TCGTemp *rt = tcgv_vec_temp(r);
 224     vec_gen_2(INDEX_op_dupi_vec, rt->base_type, vece, temp_arg(rt), a);
 225 }
 226
 227 TCGv_vec tcg_const_zeros_vec(TCGType type)
 228 {
 229     TCGv_vec ret = tcg_temp_new_vec(type);
 230     do_dupi_vec(ret, MO_REG, 0);
 231     return ret;
 232 }
 233
 234 TCGv_vec tcg_const_ones_vec(TCGType type)
 235 {
 236     TCGv_vec ret = tcg_temp_new_vec(type);
 237     do_dupi_vec(ret, MO_REG, -1);
 238     return ret;
 239 }
 240
 241 TCGv_vec tcg_const_zeros_vec_matching(TCGv_vec m)
 242 {
 243     TCGTemp *t = tcgv_vec_temp(m);
 244     return tcg_const_zeros_vec(t->base_type);
 245 }
 246
 247 TCGv_vec tcg_const_ones_vec_matching(TCGv_vec m)
 248 {
 249     TCGTemp *t = tcgv_vec_temp(m);
 250     return tcg_const_ones_vec(t->base_type);
 251 }
 252
 253 void tcg_gen_dup64i_vec(TCGv_vec r, uint64_t a)
 254 {
 255     if (TCG_TARGET_REG_BITS == 32 && a == deposit64(a, 32, 32, a)) {
 256         do_dupi_vec(r, MO_32, a);
 257     } else if (TCG_TARGET_REG_BITS == 64 || a == (uint64_t)(int32_t)a) {
 258         do_dupi_vec(r, MO_64, a);
 259     } else {
 260         TCGv_i64 c = tcg_const_i64(a);
 261         tcg_gen_dup_i64_vec(MO_64, r, c);
 262         tcg_temp_free_i64(c);
 263     }
 264 }
 265
 266 void tcg_gen_dup32i_vec(TCGv_vec r, uint32_t a)
 267 {
 268     do_dupi_vec(r, MO_REG, dup_const(MO_32, a));
 269 }
 270
 271 void tcg_gen_dup16i_vec(TCGv_vec r, uint32_t a)
 272 {
 273     do_dupi_vec(r, MO_REG, dup_const(MO_16, a));
 274 }
 275
 276 void tcg_gen_dup8i_vec(TCGv_vec r, uint32_t a)
 277 {
 278     do_dupi_vec(r, MO_REG, dup_const(MO_8, a));
 279 }
 280
 281 void tcg_gen_dupi_vec(unsigned vece, TCGv_vec r, uint64_t a)
 282 {
 283     do_dupi_vec(r, MO_REG, dup_const(vece, a));
 284 }
 285
 286 void tcg_gen_dup_i64_vec(unsigned vece, TCGv_vec r, TCGv_i64 a)
 287 {
 288     TCGArg ri = tcgv_vec_arg(r);
 289     TCGTemp *rt = arg_temp(ri);
 290     TCGType type = rt->base_type;
 291
 292     if (TCG_TARGET_REG_BITS == 64) {
 293         TCGArg ai = tcgv_i64_arg(a);
 294         vec_gen_2(INDEX_op_dup_vec, type, vece, ri, ai);
 295     } else if (vece == MO_64) {
 296         TCGArg al = tcgv_i32_arg(TCGV_LOW(a));
 297         TCGArg ah = tcgv_i32_arg(TCGV_HIGH(a));
 298         vec_gen_3(INDEX_op_dup2_vec, type, MO_64, ri, al, ah);
 299     } else {
 300         TCGArg ai = tcgv_i32_arg(TCGV_LOW(a));
 301         vec_gen_2(INDEX_op_dup_vec, type, vece, ri, ai);
 302     }
 303 }
 304
 305 void tcg_gen_dup_i32_vec(unsigned vece, TCGv_vec r, TCGv_i32 a)
 306 {
 307     TCGArg ri = tcgv_vec_arg(r);
 308     TCGArg ai = tcgv_i32_arg(a);
 309     TCGTemp *rt = arg_temp(ri);
 310     TCGType type = rt->base_type;
 311
 312     vec_gen_2(INDEX_op_dup_vec, type, vece, ri, ai);
 313 }
 314
 315 void tcg_gen_dup_mem_vec(unsigned vece, TCGv_vec r, TCGv_ptr b,
 316                          tcg_target_long ofs)
 317 {
 318     TCGArg ri = tcgv_vec_arg(r);
 319     TCGArg bi = tcgv_ptr_arg(b);
 320     TCGTemp *rt = arg_temp(ri);
 321     TCGType type = rt->base_type;
 322
 323     vec_gen_3(INDEX_op_dupm_vec, type, vece, ri, bi, ofs);
 324 }
 325
 326 static void vec_gen_ldst(TCGOpcode opc, TCGv_vec r, TCGv_ptr b, TCGArg o)
 327 {
 328     TCGArg ri = tcgv_vec_arg(r);
 329     TCGArg bi = tcgv_ptr_arg(b);
 330     TCGTemp *rt = arg_temp(ri);
 331     TCGType type = rt->base_type;
 332
 333     vec_gen_3(opc, type, 0, ri, bi, o);
 334 }
 335
 336 void tcg_gen_ld_vec(TCGv_vec r, TCGv_ptr b, TCGArg o)
 337 {
 338     vec_gen_ldst(INDEX_op_ld_vec, r, b, o);
 339 }
 340
 341 void tcg_gen_st_vec(TCGv_vec r, TCGv_ptr b, TCGArg o)
 342 {
 343     vec_gen_ldst(INDEX_op_st_vec, r, b, o);
 344 }
 345
 346 void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr b, TCGArg o, TCGType low_type)
 347 {
 348     TCGArg ri = tcgv_vec_arg(r);
 349     TCGArg bi = tcgv_ptr_arg(b);
 350     TCGTemp *rt = arg_temp(ri);
 351     TCGType type = rt->base_type;
 352
 353     tcg_debug_assert(low_type >= TCG_TYPE_V64);
 354     tcg_debug_assert(low_type <= type);
 355     vec_gen_3(INDEX_op_st_vec, low_type, 0, ri, bi, o);
 356 }
 357
 358 void tcg_gen_and_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 359 {
 360     vec_gen_op3(INDEX_op_and_vec, 0, r, a, b);
 361 }
 362
 363 void tcg_gen_or_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 364 {
 365     vec_gen_op3(INDEX_op_or_vec, 0, r, a, b);
 366 }
 367
 368 void tcg_gen_xor_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 369 {
 370     vec_gen_op3(INDEX_op_xor_vec, 0, r, a, b);
 371 }
 372
 373 void tcg_gen_andc_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 374 {
 375     if (TCG_TARGET_HAS_andc_vec) {
 376         vec_gen_op3(INDEX_op_andc_vec, 0, r, a, b);
 377     } else {
 378         TCGv_vec t = tcg_temp_new_vec_matching(r);
 379         tcg_gen_not_vec(0, t, b);
 380         tcg_gen_and_vec(0, r, a, t);
 381         tcg_temp_free_vec(t);
 382     }
 383 }
 384
 385 void tcg_gen_orc_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 386 {
 387     if (TCG_TARGET_HAS_orc_vec) {
 388         vec_gen_op3(INDEX_op_orc_vec, 0, r, a, b);
 389     } else {
 390         TCGv_vec t = tcg_temp_new_vec_matching(r);
 391         tcg_gen_not_vec(0, t, b);
 392         tcg_gen_or_vec(0, r, a, t);
 393         tcg_temp_free_vec(t);
 394     }
 395 }
 396
 397 void tcg_gen_nand_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 398 {
 399     /* TODO: Add TCG_TARGET_HAS_nand_vec when adding a backend supports it. */
 400     tcg_gen_and_vec(0, r, a, b);
 401     tcg_gen_not_vec(0, r, r);
 402 }
 403
 404 void tcg_gen_nor_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 405 {
 406     /* TODO: Add TCG_TARGET_HAS_nor_vec when adding a backend supports it. */
 407     tcg_gen_or_vec(0, r, a, b);
 408     tcg_gen_not_vec(0, r, r);
 409 }
 410
 411 void tcg_gen_eqv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 412 {
 413     /* TODO: Add TCG_TARGET_HAS_eqv_vec when adding a backend supports it. */
 414     tcg_gen_xor_vec(0, r, a, b);
 415     tcg_gen_not_vec(0, r, r);
 416 }
 417
 418 static bool do_op2(unsigned vece, TCGv_vec r, TCGv_vec a, TCGOpcode opc)
 419 {
 420     TCGTemp *rt = tcgv_vec_temp(r);
 421     TCGTemp *at = tcgv_vec_temp(a);
 422     TCGArg ri = temp_arg(rt);
 423     TCGArg ai = temp_arg(at);
 424     TCGType type = rt->base_type;
 425     int can;
 426
 427     tcg_debug_assert(at->base_type >= type);
 428     tcg_assert_listed_vecop(opc);
 429     can = tcg_can_emit_vec_op(opc, type, vece);
 430     if (can > 0) {
 431         vec_gen_2(opc, type, vece, ri, ai);
 432     } else if (can < 0) {
 433         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 434         tcg_expand_vec_op(opc, type, vece, ri, ai);
 435         tcg_swap_vecop_list(hold_list);
 436     } else {
 437         return false;
 438     }
 439     return true;
 440 }
 441
 442 void tcg_gen_not_vec(unsigned vece, TCGv_vec r, TCGv_vec a)
 443 {
 444     const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 445
 446     if (!TCG_TARGET_HAS_not_vec || !do_op2(vece, r, a, INDEX_op_not_vec)) {
 447         TCGv_vec t = tcg_const_ones_vec_matching(r);
 448         tcg_gen_xor_vec(0, r, a, t);
 449         tcg_temp_free_vec(t);
 450     }
 451     tcg_swap_vecop_list(hold_list);
 452 }
 453
 454 void tcg_gen_neg_vec(unsigned vece, TCGv_vec r, TCGv_vec a)
 455 {
 456     const TCGOpcode *hold_list;
 457
 458     tcg_assert_listed_vecop(INDEX_op_neg_vec);
 459     hold_list = tcg_swap_vecop_list(NULL);
 460
 461     if (!TCG_TARGET_HAS_neg_vec || !do_op2(vece, r, a, INDEX_op_neg_vec)) {
 462         TCGv_vec t = tcg_const_zeros_vec_matching(r);
 463         tcg_gen_sub_vec(vece, r, t, a);
 464         tcg_temp_free_vec(t);
 465     }
 466     tcg_swap_vecop_list(hold_list);
 467 }
 468
 469 void tcg_gen_abs_vec(unsigned vece, TCGv_vec r, TCGv_vec a)
 470 {
 471     const TCGOpcode *hold_list;
 472
 473     tcg_assert_listed_vecop(INDEX_op_abs_vec);
 474     hold_list = tcg_swap_vecop_list(NULL);
 475
 476     if (!do_op2(vece, r, a, INDEX_op_abs_vec)) {
 477         TCGType type = tcgv_vec_temp(r)->base_type;
 478         TCGv_vec t = tcg_temp_new_vec(type);
 479
 480         tcg_debug_assert(tcg_can_emit_vec_op(INDEX_op_sub_vec, type, vece));
 481         if (tcg_can_emit_vec_op(INDEX_op_smax_vec, type, vece) > 0) {
 482             tcg_gen_neg_vec(vece, t, a);
 483             tcg_gen_smax_vec(vece, r, a, t);
 484         } else {
 485             if (tcg_can_emit_vec_op(INDEX_op_sari_vec, type, vece) > 0) {
 486                 tcg_gen_sari_vec(vece, t, a, (8 << vece) - 1);
 487             } else {
 488                 do_dupi_vec(t, MO_REG, 0);
 489                 tcg_gen_cmp_vec(TCG_COND_LT, vece, t, a, t);
 490             }
 491             tcg_gen_xor_vec(vece, r, a, t);
 492             tcg_gen_sub_vec(vece, r, r, t);
 493         }
 494
 495         tcg_temp_free_vec(t);
 496     }
 497     tcg_swap_vecop_list(hold_list);
 498 }
 499
 500 static void do_shifti(TCGOpcode opc, unsigned vece,
 501                       TCGv_vec r, TCGv_vec a, int64_t i)
 502 {
 503     TCGTemp *rt = tcgv_vec_temp(r);
 504     TCGTemp *at = tcgv_vec_temp(a);
 505     TCGArg ri = temp_arg(rt);
 506     TCGArg ai = temp_arg(at);
 507     TCGType type = rt->base_type;
 508     int can;
 509
 510     tcg_debug_assert(at->base_type == type);
 511     tcg_debug_assert(i >= 0 && i < (8 << vece));
 512     tcg_assert_listed_vecop(opc);
 513
 514     if (i == 0) {
 515         tcg_gen_mov_vec(r, a);
 516         return;
 517     }
 518
 519     can = tcg_can_emit_vec_op(opc, type, vece);
 520     if (can > 0) {
 521         vec_gen_3(opc, type, vece, ri, ai, i);
 522     } else {
 523         /* We leave the choice of expansion via scalar or vector shift
 524            to the target.  Often, but not always, dupi can feed a vector
 525            shift easier than a scalar.  */
 526         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 527         tcg_debug_assert(can < 0);
 528         tcg_expand_vec_op(opc, type, vece, ri, ai, i);
 529         tcg_swap_vecop_list(hold_list);
 530     }
 531 }
 532
 533 void tcg_gen_shli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i)
 534 {
 535     do_shifti(INDEX_op_shli_vec, vece, r, a, i);
 536 }
 537
 538 void tcg_gen_shri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i)
 539 {
 540     do_shifti(INDEX_op_shri_vec, vece, r, a, i);
 541 }
 542
 543 void tcg_gen_sari_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i)
 544 {
 545     do_shifti(INDEX_op_sari_vec, vece, r, a, i);
 546 }
 547
 548 void tcg_gen_rotli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i)
 549 {
 550     do_shifti(INDEX_op_rotli_vec, vece, r, a, i);
 551 }
 552
 553 void tcg_gen_rotri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i)
 554 {
 555     int bits = 8 << vece;
 556     tcg_debug_assert(i >= 0 && i < bits);
 557     do_shifti(INDEX_op_rotli_vec, vece, r, a, -i & (bits - 1));
 558 }
 559
 560 void tcg_gen_cmp_vec(TCGCond cond, unsigned vece,
 561                      TCGv_vec r, TCGv_vec a, TCGv_vec b)
 562 {
 563     TCGTemp *rt = tcgv_vec_temp(r);
 564     TCGTemp *at = tcgv_vec_temp(a);
 565     TCGTemp *bt = tcgv_vec_temp(b);
 566     TCGArg ri = temp_arg(rt);
 567     TCGArg ai = temp_arg(at);
 568     TCGArg bi = temp_arg(bt);
 569     TCGType type = rt->base_type;
 570     int can;
 571
 572     tcg_debug_assert(at->base_type >= type);
 573     tcg_debug_assert(bt->base_type >= type);
 574     tcg_assert_listed_vecop(INDEX_op_cmp_vec);
 575     can = tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece);
 576     if (can > 0) {
 577         vec_gen_4(INDEX_op_cmp_vec, type, vece, ri, ai, bi, cond);
 578     } else {
 579         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 580         tcg_debug_assert(can < 0);
 581         tcg_expand_vec_op(INDEX_op_cmp_vec, type, vece, ri, ai, bi, cond);
 582         tcg_swap_vecop_list(hold_list);
 583     }
 584 }
 585
 586 static bool do_op3(unsigned vece, TCGv_vec r, TCGv_vec a,
 587                    TCGv_vec b, TCGOpcode opc)
 588 {
 589     TCGTemp *rt = tcgv_vec_temp(r);
 590     TCGTemp *at = tcgv_vec_temp(a);
 591     TCGTemp *bt = tcgv_vec_temp(b);
 592     TCGArg ri = temp_arg(rt);
 593     TCGArg ai = temp_arg(at);
 594     TCGArg bi = temp_arg(bt);
 595     TCGType type = rt->base_type;
 596     int can;
 597
 598     tcg_debug_assert(at->base_type >= type);
 599     tcg_debug_assert(bt->base_type >= type);
 600     tcg_assert_listed_vecop(opc);
 601     can = tcg_can_emit_vec_op(opc, type, vece);
 602     if (can > 0) {
 603         vec_gen_3(opc, type, vece, ri, ai, bi);
 604     } else if (can < 0) {
 605         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 606         tcg_expand_vec_op(opc, type, vece, ri, ai, bi);
 607         tcg_swap_vecop_list(hold_list);
 608     } else {
 609         return false;
 610     }
 611     return true;
 612 }
 613
 614 static void do_op3_nofail(unsigned vece, TCGv_vec r, TCGv_vec a,
 615                           TCGv_vec b, TCGOpcode opc)
 616 {
 617     bool ok = do_op3(vece, r, a, b, opc);
 618     tcg_debug_assert(ok);
 619 }
 620
 621 void tcg_gen_add_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 622 {
 623     do_op3_nofail(vece, r, a, b, INDEX_op_add_vec);
 624 }
 625
 626 void tcg_gen_sub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 627 {
 628     do_op3_nofail(vece, r, a, b, INDEX_op_sub_vec);
 629 }
 630
 631 void tcg_gen_mul_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 632 {
 633     do_op3_nofail(vece, r, a, b, INDEX_op_mul_vec);
 634 }
 635
 636 void tcg_gen_ssadd_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 637 {
 638     do_op3_nofail(vece, r, a, b, INDEX_op_ssadd_vec);
 639 }
 640
 641 void tcg_gen_usadd_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 642 {
 643     do_op3_nofail(vece, r, a, b, INDEX_op_usadd_vec);
 644 }
 645
 646 void tcg_gen_sssub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 647 {
 648     do_op3_nofail(vece, r, a, b, INDEX_op_sssub_vec);
 649 }
 650
 651 void tcg_gen_ussub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 652 {
 653     do_op3_nofail(vece, r, a, b, INDEX_op_ussub_vec);
 654 }
 655
 656 static void do_minmax(unsigned vece, TCGv_vec r, TCGv_vec a,
 657                       TCGv_vec b, TCGOpcode opc, TCGCond cond)
 658 {
 659     if (!do_op3(vece, r, a, b, opc)) {
 660         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 661         tcg_gen_cmpsel_vec(cond, vece, r, a, b, a, b);
 662         tcg_swap_vecop_list(hold_list);
 663     }
 664 }
 665
 666 void tcg_gen_smin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 667 {
 668     do_minmax(vece, r, a, b, INDEX_op_smin_vec, TCG_COND_LT);
 669 }
 670
 671 void tcg_gen_umin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 672 {
 673     do_minmax(vece, r, a, b, INDEX_op_umin_vec, TCG_COND_LTU);
 674 }
 675
 676 void tcg_gen_smax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 677 {
 678     do_minmax(vece, r, a, b, INDEX_op_smax_vec, TCG_COND_GT);
 679 }
 680
 681 void tcg_gen_umax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 682 {
 683     do_minmax(vece, r, a, b, INDEX_op_umax_vec, TCG_COND_GTU);
 684 }
 685
 686 void tcg_gen_shlv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 687 {
 688     do_op3_nofail(vece, r, a, b, INDEX_op_shlv_vec);
 689 }
 690
 691 void tcg_gen_shrv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 692 {
 693     do_op3_nofail(vece, r, a, b, INDEX_op_shrv_vec);
 694 }
 695
 696 void tcg_gen_sarv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 697 {
 698     do_op3_nofail(vece, r, a, b, INDEX_op_sarv_vec);
 699 }
 700
 701 void tcg_gen_rotlv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 702 {
 703     do_op3_nofail(vece, r, a, b, INDEX_op_rotlv_vec);
 704 }
 705
 706 void tcg_gen_rotrv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 707 {
 708     do_op3_nofail(vece, r, a, b, INDEX_op_rotrv_vec);
 709 }
 710
 711 static void do_shifts(unsigned vece, TCGv_vec r, TCGv_vec a,
 712                       TCGv_i32 s, TCGOpcode opc)
 713 {
 714     TCGTemp *rt = tcgv_vec_temp(r);
 715     TCGTemp *at = tcgv_vec_temp(a);
 716     TCGTemp *st = tcgv_i32_temp(s);
 717     TCGArg ri = temp_arg(rt);
 718     TCGArg ai = temp_arg(at);
 719     TCGArg si = temp_arg(st);
 720     TCGType type = rt->base_type;
 721     int can;
 722
 723     tcg_debug_assert(at->base_type >= type);
 724     tcg_assert_listed_vecop(opc);
 725     can = tcg_can_emit_vec_op(opc, type, vece);
 726     if (can > 0) {
 727         vec_gen_3(opc, type, vece, ri, ai, si);
 728     } else if (can < 0) {
 729         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 730         tcg_expand_vec_op(opc, type, vece, ri, ai, si);
 731         tcg_swap_vecop_list(hold_list);
 732     } else {
 733         g_assert_not_reached();
 734     }
 735 }
 736
 737 void tcg_gen_shls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 738 {
 739     do_shifts(vece, r, a, b, INDEX_op_shls_vec);
 740 }
 741
 742 void tcg_gen_shrs_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 743 {
 744     do_shifts(vece, r, a, b, INDEX_op_shrs_vec);
 745 }
 746
 747 void tcg_gen_sars_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 748 {
 749     do_shifts(vece, r, a, b, INDEX_op_sars_vec);
 750 }
 751
 752 void tcg_gen_rotls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s)
 753 {
 754     do_shifts(vece, r, a, s, INDEX_op_rotls_vec);
 755 }
 756
 757 void tcg_gen_bitsel_vec(unsigned vece, TCGv_vec r, TCGv_vec a,
 758                         TCGv_vec b, TCGv_vec c)
 759 {
 760     TCGTemp *rt = tcgv_vec_temp(r);
 761     TCGTemp *at = tcgv_vec_temp(a);
 762     TCGTemp *bt = tcgv_vec_temp(b);
 763     TCGTemp *ct = tcgv_vec_temp(c);
 764     TCGType type = rt->base_type;
 765
 766     tcg_debug_assert(at->base_type >= type);
 767     tcg_debug_assert(bt->base_type >= type);
 768     tcg_debug_assert(ct->base_type >= type);
 769
 770     if (TCG_TARGET_HAS_bitsel_vec) {
 771         vec_gen_4(INDEX_op_bitsel_vec, type, MO_8,
 772                   temp_arg(rt), temp_arg(at), temp_arg(bt), temp_arg(ct));
 773     } else {
 774         TCGv_vec t = tcg_temp_new_vec(type);
 775         tcg_gen_and_vec(MO_8, t, a, b);
 776         tcg_gen_andc_vec(MO_8, r, c, a);
 777         tcg_gen_or_vec(MO_8, r, r, t);
 778         tcg_temp_free_vec(t);
 779     }
 780 }
 781
 782 void tcg_gen_cmpsel_vec(TCGCond cond, unsigned vece, TCGv_vec r,
 783                         TCGv_vec a, TCGv_vec b, TCGv_vec c, TCGv_vec d)
 784 {
 785     TCGTemp *rt = tcgv_vec_temp(r);
 786     TCGTemp *at = tcgv_vec_temp(a);
 787     TCGTemp *bt = tcgv_vec_temp(b);
 788     TCGTemp *ct = tcgv_vec_temp(c);
 789     TCGTemp *dt = tcgv_vec_temp(d);
 790     TCGArg ri = temp_arg(rt);
 791     TCGArg ai = temp_arg(at);
 792     TCGArg bi = temp_arg(bt);
 793     TCGArg ci = temp_arg(ct);
 794     TCGArg di = temp_arg(dt);
 795     TCGType type = rt->base_type;
 796     const TCGOpcode *hold_list;
 797     int can;
 798
 799     tcg_debug_assert(at->base_type >= type);
 800     tcg_debug_assert(bt->base_type >= type);
 801     tcg_debug_assert(ct->base_type >= type);
 802     tcg_debug_assert(dt->base_type >= type);
 803
 804     tcg_assert_listed_vecop(INDEX_op_cmpsel_vec);
 805     hold_list = tcg_swap_vecop_list(NULL);
 806     can = tcg_can_emit_vec_op(INDEX_op_cmpsel_vec, type, vece);
 807
 808     if (can > 0) {
 809         vec_gen_6(INDEX_op_cmpsel_vec, type, vece, ri, ai, bi, ci, di, cond);
 810     } else if (can < 0) {
 811         tcg_expand_vec_op(INDEX_op_cmpsel_vec, type, vece,
 812                           ri, ai, bi, ci, di, cond);
 813     } else {
 814         TCGv_vec t = tcg_temp_new_vec(type);
 815         tcg_gen_cmp_vec(cond, vece, t, a, b);
 816         tcg_gen_bitsel_vec(vece, r, t, c, d);
 817         tcg_temp_free_vec(t);
 818     }
 819     tcg_swap_vecop_list(hold_list);
 820 }