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.h"
  23 #include "tcg-op.h"
  24 #include "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_cmp_vec(TCGCond cond, unsigned vece,
 549                      TCGv_vec r, TCGv_vec a, TCGv_vec b)
 550 {
 551     TCGTemp *rt = tcgv_vec_temp(r);
 552     TCGTemp *at = tcgv_vec_temp(a);
 553     TCGTemp *bt = tcgv_vec_temp(b);
 554     TCGArg ri = temp_arg(rt);
 555     TCGArg ai = temp_arg(at);
 556     TCGArg bi = temp_arg(bt);
 557     TCGType type = rt->base_type;
 558     int can;
 559
 560     tcg_debug_assert(at->base_type >= type);
 561     tcg_debug_assert(bt->base_type >= type);
 562     tcg_assert_listed_vecop(INDEX_op_cmp_vec);
 563     can = tcg_can_emit_vec_op(INDEX_op_cmp_vec, type, vece);
 564     if (can > 0) {
 565         vec_gen_4(INDEX_op_cmp_vec, type, vece, ri, ai, bi, cond);
 566     } else {
 567         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 568         tcg_debug_assert(can < 0);
 569         tcg_expand_vec_op(INDEX_op_cmp_vec, type, vece, ri, ai, bi, cond);
 570         tcg_swap_vecop_list(hold_list);
 571     }
 572 }
 573
 574 static bool do_op3(unsigned vece, TCGv_vec r, TCGv_vec a,
 575                    TCGv_vec b, TCGOpcode opc)
 576 {
 577     TCGTemp *rt = tcgv_vec_temp(r);
 578     TCGTemp *at = tcgv_vec_temp(a);
 579     TCGTemp *bt = tcgv_vec_temp(b);
 580     TCGArg ri = temp_arg(rt);
 581     TCGArg ai = temp_arg(at);
 582     TCGArg bi = temp_arg(bt);
 583     TCGType type = rt->base_type;
 584     int can;
 585
 586     tcg_debug_assert(at->base_type >= type);
 587     tcg_debug_assert(bt->base_type >= type);
 588     tcg_assert_listed_vecop(opc);
 589     can = tcg_can_emit_vec_op(opc, type, vece);
 590     if (can > 0) {
 591         vec_gen_3(opc, type, vece, ri, ai, bi);
 592     } else if (can < 0) {
 593         const TCGOpcode *hold_list = tcg_swap_vecop_list(NULL);
 594         tcg_expand_vec_op(opc, type, vece, ri, ai, bi);
 595         tcg_swap_vecop_list(hold_list);
 596     } else {
 597         return false;
 598     }
 599     return true;
 600 }
 601
 602 static void do_op3_nofail(unsigned vece, TCGv_vec r, TCGv_vec a,
 603                           TCGv_vec b, TCGOpcode opc)
 604 {
 605     bool ok = do_op3(vece, r, a, b, opc);
 606     tcg_debug_assert(ok);
 607 }
 608
 609 void tcg_gen_add_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 610 {
 611     do_op3_nofail(vece, r, a, b, INDEX_op_add_vec);
 612 }
 613
 614 void tcg_gen_sub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 615 {
 616     do_op3_nofail(vece, r, a, b, INDEX_op_sub_vec);
 617 }
 618
 619 void tcg_gen_mul_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 620 {
 621     do_op3_nofail(vece, r, a, b, INDEX_op_mul_vec);
 622 }
 623
 624 void tcg_gen_ssadd_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 625 {
 626     do_op3_nofail(vece, r, a, b, INDEX_op_ssadd_vec);
 627 }
 628
 629 void tcg_gen_usadd_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 630 {
 631     do_op3_nofail(vece, r, a, b, INDEX_op_usadd_vec);
 632 }
 633
 634 void tcg_gen_sssub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 635 {
 636     do_op3_nofail(vece, r, a, b, INDEX_op_sssub_vec);
 637 }
 638
 639 void tcg_gen_ussub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 640 {
 641     do_op3_nofail(vece, r, a, b, INDEX_op_ussub_vec);
 642 }
 643
 644 static void do_minmax(unsigned vece, TCGv_vec r, TCGv_vec a,
 645                       TCGv_vec b, TCGOpcode opc, TCGCond cond)
 646 {
 647     if (!do_op3(vece, r, a, b, opc)) {
 648         tcg_gen_cmpsel_vec(cond, vece, r, a, b, a, b);
 649     }
 650 }
 651
 652 void tcg_gen_smin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 653 {
 654     do_minmax(vece, r, a, b, INDEX_op_smin_vec, TCG_COND_LT);
 655 }
 656
 657 void tcg_gen_umin_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 658 {
 659     do_minmax(vece, r, a, b, INDEX_op_umin_vec, TCG_COND_LTU);
 660 }
 661
 662 void tcg_gen_smax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 663 {
 664     do_minmax(vece, r, a, b, INDEX_op_smax_vec, TCG_COND_GT);
 665 }
 666
 667 void tcg_gen_umax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 668 {
 669     do_minmax(vece, r, a, b, INDEX_op_umax_vec, TCG_COND_GTU);
 670 }
 671
 672 void tcg_gen_shlv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 673 {
 674     do_op3_nofail(vece, r, a, b, INDEX_op_shlv_vec);
 675 }
 676
 677 void tcg_gen_shrv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 678 {
 679     do_op3_nofail(vece, r, a, b, INDEX_op_shrv_vec);
 680 }
 681
 682 void tcg_gen_sarv_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
 683 {
 684     do_op3_nofail(vece, r, a, b, INDEX_op_sarv_vec);
 685 }
 686
 687 static void do_shifts(unsigned vece, TCGv_vec r, TCGv_vec a,
 688                       TCGv_i32 s, TCGOpcode opc_s, TCGOpcode opc_v)
 689 {
 690     TCGTemp *rt = tcgv_vec_temp(r);
 691     TCGTemp *at = tcgv_vec_temp(a);
 692     TCGTemp *st = tcgv_i32_temp(s);
 693     TCGArg ri = temp_arg(rt);
 694     TCGArg ai = temp_arg(at);
 695     TCGArg si = temp_arg(st);
 696     TCGType type = rt->base_type;
 697     const TCGOpcode *hold_list;
 698     int can;
 699
 700     tcg_debug_assert(at->base_type >= type);
 701     tcg_assert_listed_vecop(opc_s);
 702     hold_list = tcg_swap_vecop_list(NULL);
 703
 704     can = tcg_can_emit_vec_op(opc_s, type, vece);
 705     if (can > 0) {
 706         vec_gen_3(opc_s, type, vece, ri, ai, si);
 707     } else if (can < 0) {
 708         tcg_expand_vec_op(opc_s, type, vece, ri, ai, si);
 709     } else {
 710         TCGv_vec vec_s = tcg_temp_new_vec(type);
 711
 712         if (vece == MO_64) {
 713             TCGv_i64 s64 = tcg_temp_new_i64();
 714             tcg_gen_extu_i32_i64(s64, s);
 715             tcg_gen_dup_i64_vec(MO_64, vec_s, s64);
 716             tcg_temp_free_i64(s64);
 717         } else {
 718             tcg_gen_dup_i32_vec(vece, vec_s, s);
 719         }
 720         do_op3_nofail(vece, r, a, vec_s, opc_v);
 721         tcg_temp_free_vec(vec_s);
 722     }
 723     tcg_swap_vecop_list(hold_list);
 724 }
 725
 726 void tcg_gen_shls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 727 {
 728     do_shifts(vece, r, a, b, INDEX_op_shls_vec, INDEX_op_shlv_vec);
 729 }
 730
 731 void tcg_gen_shrs_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 732 {
 733     do_shifts(vece, r, a, b, INDEX_op_shrs_vec, INDEX_op_shrv_vec);
 734 }
 735
 736 void tcg_gen_sars_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 b)
 737 {
 738     do_shifts(vece, r, a, b, INDEX_op_sars_vec, INDEX_op_sarv_vec);
 739 }
 740
 741 void tcg_gen_bitsel_vec(unsigned vece, TCGv_vec r, TCGv_vec a,
 742                         TCGv_vec b, TCGv_vec c)
 743 {
 744     TCGTemp *rt = tcgv_vec_temp(r);
 745     TCGTemp *at = tcgv_vec_temp(a);
 746     TCGTemp *bt = tcgv_vec_temp(b);
 747     TCGTemp *ct = tcgv_vec_temp(c);
 748     TCGType type = rt->base_type;
 749
 750     tcg_debug_assert(at->base_type >= type);
 751     tcg_debug_assert(bt->base_type >= type);
 752     tcg_debug_assert(ct->base_type >= type);
 753
 754     if (TCG_TARGET_HAS_bitsel_vec) {
 755         vec_gen_4(INDEX_op_bitsel_vec, type, MO_8,
 756                   temp_arg(rt), temp_arg(at), temp_arg(bt), temp_arg(ct));
 757     } else {
 758         TCGv_vec t = tcg_temp_new_vec(type);
 759         tcg_gen_and_vec(MO_8, t, a, b);
 760         tcg_gen_andc_vec(MO_8, r, c, a);
 761         tcg_gen_or_vec(MO_8, r, r, t);
 762         tcg_temp_free_vec(t);
 763     }
 764 }
 765
 766 void tcg_gen_cmpsel_vec(TCGCond cond, unsigned vece, TCGv_vec r,
 767                         TCGv_vec a, TCGv_vec b, TCGv_vec c, TCGv_vec d)
 768 {
 769     TCGTemp *rt = tcgv_vec_temp(r);
 770     TCGTemp *at = tcgv_vec_temp(a);
 771     TCGTemp *bt = tcgv_vec_temp(b);
 772     TCGTemp *ct = tcgv_vec_temp(c);
 773     TCGTemp *dt = tcgv_vec_temp(d);
 774     TCGArg ri = temp_arg(rt);
 775     TCGArg ai = temp_arg(at);
 776     TCGArg bi = temp_arg(bt);
 777     TCGArg ci = temp_arg(ct);
 778     TCGArg di = temp_arg(dt);
 779     TCGType type = rt->base_type;
 780     const TCGOpcode *hold_list;
 781     int can;
 782
 783     tcg_debug_assert(at->base_type >= type);
 784     tcg_debug_assert(bt->base_type >= type);
 785     tcg_debug_assert(ct->base_type >= type);
 786     tcg_debug_assert(dt->base_type >= type);
 787
 788     tcg_assert_listed_vecop(INDEX_op_cmpsel_vec);
 789     hold_list = tcg_swap_vecop_list(NULL);
 790     can = tcg_can_emit_vec_op(INDEX_op_cmpsel_vec, type, vece);
 791
 792     if (can > 0) {
 793         vec_gen_6(INDEX_op_cmpsel_vec, type, vece, ri, ai, bi, ci, di, cond);
 794     } else if (can < 0) {
 795         tcg_expand_vec_op(INDEX_op_cmpsel_vec, type, vece,
 796                           ri, ai, bi, ci, di, cond);
 797     } else {
 798         TCGv_vec t = tcg_temp_new_vec(type);
 799         tcg_gen_cmp_vec(cond, vece, t, a, b);
 800         tcg_gen_bitsel_vec(vece, r, t, c, d);
 801         tcg_temp_free_vec(t);
 802     }
 803     tcg_swap_vecop_list(hold_list);
 804 }