src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /**
  30  * @file
  31  * TGSI to LLVM IR translation -- SoA.
  32  *
  33  * @author Jose Fonseca <jfonseca@vmware.com>
  34  *
  35  * Based on tgsi_sse2.c code written by Michal Krol, Keith Whitwell,
  36  * Brian Paul, and others.
  37  */
  38
  39 #include "pipe/p_config.h"
  40 #include "pipe/p_shader_tokens.h"
  41 #include "util/u_debug.h"
  42 #include "util/u_math.h"
  43 #include "util/u_memory.h"
  44 #include "tgsi/tgsi_dump.h"
  45 #include "tgsi/tgsi_info.h"
  46 #include "tgsi/tgsi_parse.h"
  47 #include "tgsi/tgsi_util.h"
  48 #include "tgsi/tgsi_exec.h"
  49 #include "tgsi/tgsi_scan.h"
  50 #include "lp_bld_type.h"
  51 #include "lp_bld_const.h"
  52 #include "lp_bld_arit.h"
  53 #include "lp_bld_logic.h"
  54 #include "lp_bld_swizzle.h"
  55 #include "lp_bld_flow.h"
  56 #include "lp_bld_tgsi.h"
  57 #include "lp_bld_limits.h"
  58 #include "lp_bld_debug.h"
  59
  60
  61 #define FOR_EACH_CHANNEL( CHAN )\
  62    for (CHAN = 0; CHAN < NUM_CHANNELS; CHAN++)
  63
  64 #define IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
  65    ((INST)->Dst[0].Register.WriteMask & (1 << (CHAN)))
  66
  67 #define IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )\
  68    if (IS_DST0_CHANNEL_ENABLED( INST, CHAN ))
  69
  70 #define FOR_EACH_DST0_ENABLED_CHANNEL( INST, CHAN )\
  71    FOR_EACH_CHANNEL( CHAN )\
  72       IF_IS_DST0_CHANNEL_ENABLED( INST, CHAN )
  73
  74 #define CHAN_X 0
  75 #define CHAN_Y 1
  76 #define CHAN_Z 2
  77 #define CHAN_W 3
  78
  79 #define QUAD_TOP_LEFT     0
  80 #define QUAD_TOP_RIGHT    1
  81 #define QUAD_BOTTOM_LEFT  2
  82 #define QUAD_BOTTOM_RIGHT 3
  83
  84
  85 struct lp_exec_mask {
  86    struct lp_build_context *bld;
  87
  88    boolean has_mask;
  89
  90    LLVMTypeRef int_vec_type;
  91
  92    LLVMValueRef cond_stack[LP_MAX_TGSI_NESTING];
  93    int cond_stack_size;
  94    LLVMValueRef cond_mask;
  95
  96    LLVMValueRef break_stack[LP_MAX_TGSI_NESTING];
  97    int break_stack_size;
  98    LLVMValueRef break_mask;
  99
 100    LLVMValueRef cont_stack[LP_MAX_TGSI_NESTING];
 101    int cont_stack_size;
 102    LLVMValueRef cont_mask;
 103
 104    LLVMBasicBlockRef loop_stack[LP_MAX_TGSI_NESTING];
 105    int loop_stack_size;
 106    LLVMBasicBlockRef loop_block;
 107
 108
 109    LLVMValueRef exec_mask;
 110 };
 111
 112 struct lp_build_tgsi_soa_context
 113 {
 114    struct lp_build_context base;
 115
 116    LLVMValueRef consts_ptr;
 117    const LLVMValueRef *pos;
 118    const LLVMValueRef (*inputs)[NUM_CHANNELS];
 119    LLVMValueRef (*outputs)[NUM_CHANNELS];
 120
 121    struct lp_build_sampler_soa *sampler;
 122
 123    LLVMValueRef immediates[LP_MAX_TGSI_IMMEDIATES][NUM_CHANNELS];
 124    LLVMValueRef temps[LP_MAX_TGSI_TEMPS][NUM_CHANNELS];
 125    LLVMValueRef addr[LP_MAX_TGSI_ADDRS][NUM_CHANNELS];
 126
 127    /* we allocate an array of temps if we have indirect
 128     * addressing and then the temps above is unused */
 129    LLVMValueRef temps_array;
 130    boolean has_indirect_addressing;
 131
 132    struct lp_build_mask_context *mask;
 133    struct lp_exec_mask exec_mask;
 134 };
 135
 136 static const unsigned char
 137 swizzle_left[4] = {
 138    QUAD_TOP_LEFT,     QUAD_TOP_LEFT,
 139    QUAD_BOTTOM_LEFT,  QUAD_BOTTOM_LEFT
 140 };
 141
 142 static const unsigned char
 143 swizzle_right[4] = {
 144    QUAD_TOP_RIGHT,    QUAD_TOP_RIGHT,
 145    QUAD_BOTTOM_RIGHT, QUAD_BOTTOM_RIGHT
 146 };
 147
 148 static const unsigned char
 149 swizzle_top[4] = {
 150    QUAD_TOP_LEFT,     QUAD_TOP_RIGHT,
 151    QUAD_TOP_LEFT,     QUAD_TOP_RIGHT
 152 };
 153
 154 static const unsigned char
 155 swizzle_bottom[4] = {
 156    QUAD_BOTTOM_LEFT,  QUAD_BOTTOM_RIGHT,
 157    QUAD_BOTTOM_LEFT,  QUAD_BOTTOM_RIGHT
 158 };
 159
 160 static void lp_exec_mask_init(struct lp_exec_mask *mask, struct lp_build_context *bld)
 161 {
 162    mask->bld = bld;
 163    mask->has_mask = FALSE;
 164    mask->cond_stack_size = 0;
 165    mask->loop_stack_size = 0;
 166    mask->break_stack_size = 0;
 167    mask->cont_stack_size = 0;
 168
 169    mask->int_vec_type = lp_build_int_vec_type(mask->bld->type);
 170 }
 171
 172 static void lp_exec_mask_update(struct lp_exec_mask *mask)
 173 {
 174    if (mask->loop_stack_size) {
 175       /*for loops we need to update the entire mask at runtime */
 176       LLVMValueRef tmp;
 177       assert(mask->break_mask);
 178       tmp = LLVMBuildAnd(mask->bld->builder,
 179                          mask->cont_mask,
 180                          mask->break_mask,
 181                          "maskcb");
 182       mask->exec_mask = LLVMBuildAnd(mask->bld->builder,
 183                                      mask->cond_mask,
 184                                      tmp,
 185                                      "maskfull");
 186    } else
 187       mask->exec_mask = mask->cond_mask;
 188
 189
 190    mask->has_mask = (mask->cond_stack_size > 0 ||
 191                      mask->loop_stack_size > 0);
 192 }
 193
 194 static void lp_exec_mask_cond_push(struct lp_exec_mask *mask,
 195                                    LLVMValueRef val)
 196 {
 197    assert(mask->cond_stack_size < LP_MAX_TGSI_NESTING);
 198    mask->cond_stack[mask->cond_stack_size++] = mask->cond_mask;
 199    mask->cond_mask = LLVMBuildBitCast(mask->bld->builder, val,
 200                                       mask->int_vec_type, "");
 201
 202    lp_exec_mask_update(mask);
 203 }
 204
 205 static void lp_exec_mask_cond_invert(struct lp_exec_mask *mask)
 206 {
 207    LLVMValueRef prev_mask = mask->cond_stack[mask->cond_stack_size - 1];
 208    LLVMValueRef inv_mask = LLVMBuildNot(mask->bld->builder,
 209                                         mask->cond_mask, "");
 210
 211    /* means that we didn't have any mask before and that
 212     * we were fully enabled */
 213    if (mask->cond_stack_size <= 1) {
 214       prev_mask = LLVMConstAllOnes(mask->int_vec_type);
 215    }
 216
 217    mask->cond_mask = LLVMBuildAnd(mask->bld->builder,
 218                                   inv_mask,
 219                                   prev_mask, "");
 220    lp_exec_mask_update(mask);
 221 }
 222
 223 static void lp_exec_mask_cond_pop(struct lp_exec_mask *mask)
 224 {
 225    mask->cond_mask = mask->cond_stack[--mask->cond_stack_size];
 226    lp_exec_mask_update(mask);
 227 }
 228
 229 static void lp_exec_bgnloop(struct lp_exec_mask *mask)
 230 {
 231
 232    if (mask->cont_stack_size == 0)
 233       mask->cont_mask = LLVMConstAllOnes(mask->int_vec_type);
 234    if (mask->break_stack_size == 0)
 235       mask->break_mask = LLVMConstAllOnes(mask->int_vec_type);
 236    if (mask->cond_stack_size == 0)
 237       mask->cond_mask = LLVMConstAllOnes(mask->int_vec_type);
 238
 239    assert(mask->break_stack_size < LP_MAX_TGSI_NESTING);
 240    assert(mask->cont_stack_size < LP_MAX_TGSI_NESTING);
 241    assert(mask->break_stack_size < LP_MAX_TGSI_NESTING);
 242
 243    mask->break_stack[mask->break_stack_size++] = mask->break_mask;
 244    mask->cont_stack[mask->cont_stack_size++] = mask->cont_mask;
 245    mask->loop_stack[mask->loop_stack_size++] = mask->loop_block;
 246    mask->loop_block = lp_build_insert_new_block(mask->bld->builder, "bgnloop");
 247    LLVMBuildBr(mask->bld->builder, mask->loop_block);
 248    LLVMPositionBuilderAtEnd(mask->bld->builder, mask->loop_block);
 249
 250    lp_exec_mask_update(mask);
 251 }
 252
 253 static void lp_exec_break(struct lp_exec_mask *mask)
 254 {
 255    LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
 256                                          mask->exec_mask,
 257                                          "break");
 258
 259    mask->break_mask = LLVMBuildAnd(mask->bld->builder,
 260                                    mask->break_mask,
 261                                    exec_mask, "break_full");
 262
 263    lp_exec_mask_update(mask);
 264 }
 265
 266 static void lp_exec_continue(struct lp_exec_mask *mask)
 267 {
 268    LLVMValueRef exec_mask = LLVMBuildNot(mask->bld->builder,
 269                                          mask->exec_mask,
 270                                          "");
 271
 272    mask->cont_mask = LLVMBuildAnd(mask->bld->builder,
 273                                   mask->cont_mask,
 274                                   exec_mask, "");
 275
 276    lp_exec_mask_update(mask);
 277 }
 278
 279
 280 static void lp_exec_endloop(struct lp_exec_mask *mask)
 281 {
 282    LLVMBasicBlockRef endloop;
 283    LLVMTypeRef reg_type = LLVMIntType(mask->bld->type.width*
 284                                       mask->bld->type.length);
 285    LLVMValueRef i1cond;
 286
 287    assert(mask->break_mask);
 288
 289    /* i1cond = (mask == 0) */
 290    i1cond = LLVMBuildICmp(
 291       mask->bld->builder,
 292       LLVMIntNE,
 293       LLVMBuildBitCast(mask->bld->builder, mask->break_mask, reg_type, ""),
 294       LLVMConstNull(reg_type), "");
 295
 296    endloop = lp_build_insert_new_block(mask->bld->builder, "endloop");
 297
 298    LLVMBuildCondBr(mask->bld->builder,
 299                    i1cond, mask->loop_block, endloop);
 300
 301    LLVMPositionBuilderAtEnd(mask->bld->builder, endloop);
 302
 303    mask->loop_block = mask->loop_stack[--mask->loop_stack_size];
 304    /* pop the cont mask */
 305    if (mask->cont_stack_size) {
 306       mask->cont_mask = mask->cont_stack[--mask->cont_stack_size];
 307    }
 308    /* pop the break mask */
 309    if (mask->break_stack_size) {
 310       mask->break_mask = mask->break_stack[--mask->break_stack_size];
 311    }
 312
 313    lp_exec_mask_update(mask);
 314 }
 315
 316 /* stores val into an address pointed to by dst.
 317  * mask->exec_mask is used to figure out which bits of val
 318  * should be stored into the address
 319  * (0 means don't store this bit, 1 means do store).
 320  */
 321 static void lp_exec_mask_store(struct lp_exec_mask *mask,
 322                                LLVMValueRef val,
 323                                LLVMValueRef dst)
 324 {
 325    if (mask->has_mask) {
 326       LLVMValueRef real_val, dst_val;
 327
 328       dst_val = LLVMBuildLoad(mask->bld->builder, dst, "");
 329       real_val = lp_build_select(mask->bld,
 330                                  mask->exec_mask,
 331                                  val, dst_val);
 332
 333       LLVMBuildStore(mask->bld->builder, real_val, dst);
 334    } else
 335       LLVMBuildStore(mask->bld->builder, val, dst);
 336 }
 337
 338
 339 static LLVMValueRef
 340 emit_ddx(struct lp_build_tgsi_soa_context *bld,
 341          LLVMValueRef src)
 342 {
 343    LLVMValueRef src_left  = lp_build_swizzle1_aos(&bld->base, src, swizzle_left);
 344    LLVMValueRef src_right = lp_build_swizzle1_aos(&bld->base, src, swizzle_right);
 345    return lp_build_sub(&bld->base, src_right, src_left);
 346 }
 347
 348
 349 static LLVMValueRef
 350 emit_ddy(struct lp_build_tgsi_soa_context *bld,
 351          LLVMValueRef src)
 352 {
 353    LLVMValueRef src_top    = lp_build_swizzle1_aos(&bld->base, src, swizzle_top);
 354    LLVMValueRef src_bottom = lp_build_swizzle1_aos(&bld->base, src, swizzle_bottom);
 355    return lp_build_sub(&bld->base, src_top, src_bottom);
 356 }
 357
 358 static LLVMValueRef
 359 get_temp_ptr(struct lp_build_tgsi_soa_context *bld,
 360              unsigned index,
 361              unsigned swizzle,
 362              boolean is_indirect,
 363              LLVMValueRef addr)
 364 {
 365    if (!bld->has_indirect_addressing) {
 366       return bld->temps[index][swizzle];
 367    } else {
 368       LLVMValueRef lindex =
 369          LLVMConstInt(LLVMInt32Type(), index*4 + swizzle, 0);
 370       if (is_indirect)
 371          lindex = lp_build_add(&bld->base, lindex, addr);
 372       return LLVMBuildGEP(bld->base.builder, bld->temps_array, &lindex, 1, "");
 373    }
 374 }
 375
 376 /**
 377  * Register fetch.
 378  */
 379 static LLVMValueRef
 380 emit_fetch(
 381    struct lp_build_tgsi_soa_context *bld,
 382    const struct tgsi_full_instruction *inst,
 383    unsigned index,
 384    const unsigned chan_index )
 385 {
 386    const struct tgsi_full_src_register *reg = &inst->Src[index];
 387    unsigned swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index );
 388    LLVMValueRef res;
 389    LLVMValueRef addr;
 390
 391    switch (swizzle) {
 392    case TGSI_SWIZZLE_X:
 393    case TGSI_SWIZZLE_Y:
 394    case TGSI_SWIZZLE_Z:
 395    case TGSI_SWIZZLE_W:
 396
 397       if (reg->Register.Indirect) {
 398          LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->base.type);
 399          unsigned swizzle = tgsi_util_get_src_register_swizzle( &reg->Indirect, chan_index );
 400          addr = LLVMBuildLoad(bld->base.builder,
 401                               bld->addr[reg->Indirect.Index][swizzle],
 402                               "");
 403          /* for indexing we want integers */
 404          addr = LLVMBuildFPToSI(bld->base.builder, addr,
 405                                 int_vec_type, "");
 406          addr = LLVMBuildExtractElement(bld->base.builder,
 407                                         addr, LLVMConstInt(LLVMInt32Type(), 0, 0),
 408                                         "");
 409          addr = lp_build_mul(&bld->base, addr, LLVMConstInt(LLVMInt32Type(), 4, 0));
 410       }
 411
 412       switch (reg->Register.File) {
 413       case TGSI_FILE_CONSTANT: {
 414          LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), reg->Register.Index*4 + swizzle, 0);
 415          LLVMValueRef scalar, scalar_ptr;
 416
 417          if (reg->Register.Indirect) {
 418             /*lp_build_printf(bld->base.builder,
 419               "\taddr = %d\n", addr);*/
 420             index = lp_build_add(&bld->base, index, addr);
 421          }
 422          scalar_ptr = LLVMBuildGEP(bld->base.builder, bld->consts_ptr, &index, 1, "");
 423          scalar = LLVMBuildLoad(bld->base.builder, scalar_ptr, "");
 424
 425          res = lp_build_broadcast_scalar(&bld->base, scalar);
 426          break;
 427       }
 428
 429       case TGSI_FILE_IMMEDIATE:
 430          res = bld->immediates[reg->Register.Index][swizzle];
 431          assert(res);
 432          break;
 433
 434       case TGSI_FILE_INPUT:
 435          res = bld->inputs[reg->Register.Index][swizzle];
 436          assert(res);
 437          break;
 438
 439       case TGSI_FILE_TEMPORARY: {
 440          LLVMValueRef temp_ptr = get_temp_ptr(bld, reg->Register.Index,
 441                                               swizzle,
 442                                               reg->Register.Indirect,
 443                                               addr);
 444          res = LLVMBuildLoad(bld->base.builder, temp_ptr, "");
 445          if(!res)
 446             return bld->base.undef;
 447          break;
 448       }
 449
 450       default:
 451          assert( 0 );
 452          return bld->base.undef;
 453       }
 454       break;
 455
 456    default:
 457       assert( 0 );
 458       return bld->base.undef;
 459    }
 460
 461    switch( tgsi_util_get_full_src_register_sign_mode( reg, chan_index ) ) {
 462    case TGSI_UTIL_SIGN_CLEAR:
 463       res = lp_build_abs( &bld->base, res );
 464       break;
 465
 466    case TGSI_UTIL_SIGN_SET:
 467       /* TODO: Use bitwese OR for floating point */
 468       res = lp_build_abs( &bld->base, res );
 469       res = LLVMBuildNeg( bld->base.builder, res, "" );
 470       break;
 471
 472    case TGSI_UTIL_SIGN_TOGGLE:
 473       res = LLVMBuildNeg( bld->base.builder, res, "" );
 474       break;
 475
 476    case TGSI_UTIL_SIGN_KEEP:
 477       break;
 478    }
 479
 480    return res;
 481 }
 482
 483
 484 /**
 485  * Register fetch with derivatives.
 486  */
 487 static void
 488 emit_fetch_deriv(
 489    struct lp_build_tgsi_soa_context *bld,
 490    const struct tgsi_full_instruction *inst,
 491    unsigned index,
 492    const unsigned chan_index,
 493    LLVMValueRef *res,
 494    LLVMValueRef *ddx,
 495    LLVMValueRef *ddy)
 496 {
 497    LLVMValueRef src;
 498
 499    src = emit_fetch(bld, inst, index, chan_index);
 500
 501    if(res)
 502       *res = src;
 503
 504    /* TODO: use interpolation coeffs for inputs */
 505
 506    if(ddx)
 507       *ddx = emit_ddx(bld, src);
 508
 509    if(ddy)
 510       *ddy = emit_ddy(bld, src);
 511 }
 512
 513
 514 /**
 515  * Register store.
 516  */
 517 static void
 518 emit_store(
 519    struct lp_build_tgsi_soa_context *bld,
 520    const struct tgsi_full_instruction *inst,
 521    unsigned index,
 522    unsigned chan_index,
 523    LLVMValueRef value)
 524 {
 525    const struct tgsi_full_dst_register *reg = &inst->Dst[index];
 526    LLVMValueRef addr;
 527
 528    switch( inst->Instruction.Saturate ) {
 529    case TGSI_SAT_NONE:
 530       break;
 531
 532    case TGSI_SAT_ZERO_ONE:
 533       value = lp_build_max(&bld->base, value, bld->base.zero);
 534       value = lp_build_min(&bld->base, value, bld->base.one);
 535       break;
 536
 537    case TGSI_SAT_MINUS_PLUS_ONE:
 538       value = lp_build_max(&bld->base, value, lp_build_const_vec(bld->base.type, -1.0));
 539       value = lp_build_min(&bld->base, value, bld->base.one);
 540       break;
 541
 542    default:
 543       assert(0);
 544    }
 545
 546    if (reg->Register.Indirect) {
 547       LLVMTypeRef int_vec_type = lp_build_int_vec_type(bld->base.type);
 548       unsigned swizzle = tgsi_util_get_src_register_swizzle( &reg->Indirect, chan_index );
 549       addr = LLVMBuildLoad(bld->base.builder,
 550                            bld->addr[reg->Indirect.Index][swizzle],
 551                            "");
 552       /* for indexing we want integers */
 553       addr = LLVMBuildFPToSI(bld->base.builder, addr,
 554                              int_vec_type, "");
 555       addr = LLVMBuildExtractElement(bld->base.builder,
 556                                      addr, LLVMConstInt(LLVMInt32Type(), 0, 0),
 557                                      "");
 558       addr = lp_build_mul(&bld->base, addr, LLVMConstInt(LLVMInt32Type(), 4, 0));
 559    }
 560
 561    switch( reg->Register.File ) {
 562    case TGSI_FILE_OUTPUT:
 563       lp_exec_mask_store(&bld->exec_mask, value,
 564                          bld->outputs[reg->Register.Index][chan_index]);
 565       break;
 566
 567    case TGSI_FILE_TEMPORARY: {
 568       LLVMValueRef temp_ptr = get_temp_ptr(bld, reg->Register.Index,
 569                                            chan_index,
 570                                            reg->Register.Indirect,
 571                                            addr);
 572       lp_exec_mask_store(&bld->exec_mask, value, temp_ptr);
 573       break;
 574    }
 575
 576    case TGSI_FILE_ADDRESS:
 577       lp_exec_mask_store(&bld->exec_mask, value,
 578                          bld->addr[reg->Indirect.Index][chan_index]);
 579       break;
 580
 581    case TGSI_FILE_PREDICATE:
 582       /* FIXME */
 583       break;
 584
 585    default:
 586       assert( 0 );
 587    }
 588 }
 589
 590
 591 /**
 592  * High-level instruction translators.
 593  */
 594
 595
 596 static void
 597 emit_tex( struct lp_build_tgsi_soa_context *bld,
 598           const struct tgsi_full_instruction *inst,
 599           boolean apply_lodbias,
 600           boolean projected,
 601           LLVMValueRef *texel)
 602 {
 603    const uint unit = inst->Src[1].Register.Index;
 604    LLVMValueRef lodbias;
 605    LLVMValueRef oow = NULL;
 606    LLVMValueRef coords[3];
 607    unsigned num_coords;
 608    unsigned i;
 609
 610    if (!bld->sampler) {
 611       _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
 612       for (i = 0; i < 4; i++) {
 613          texel[i] = bld->base.undef;
 614       }
 615       return;
 616    }
 617
 618    switch (inst->Texture.Texture) {
 619    case TGSI_TEXTURE_1D:
 620       num_coords = 1;
 621       break;
 622    case TGSI_TEXTURE_2D:
 623    case TGSI_TEXTURE_RECT:
 624       num_coords = 2;
 625       break;
 626    case TGSI_TEXTURE_SHADOW1D:
 627    case TGSI_TEXTURE_SHADOW2D:
 628    case TGSI_TEXTURE_SHADOWRECT:
 629    case TGSI_TEXTURE_3D:
 630    case TGSI_TEXTURE_CUBE:
 631       num_coords = 3;
 632       break;
 633    default:
 634       assert(0);
 635       return;
 636    }
 637
 638    if(apply_lodbias)
 639       lodbias = emit_fetch( bld, inst, 0, 3 );
 640    else
 641       lodbias = bld->base.zero;
 642
 643    if (projected) {
 644       oow = emit_fetch( bld, inst, 0, 3 );
 645       oow = lp_build_rcp(&bld->base, oow);
 646    }
 647
 648    for (i = 0; i < num_coords; i++) {
 649       coords[i] = emit_fetch( bld, inst, 0, i );
 650       if (projected)
 651          coords[i] = lp_build_mul(&bld->base, coords[i], oow);
 652    }
 653    for (i = num_coords; i < 3; i++) {
 654       coords[i] = bld->base.undef;
 655    }
 656
 657    bld->sampler->emit_fetch_texel(bld->sampler,
 658                                   bld->base.builder,
 659                                   bld->base.type,
 660                                   unit, num_coords, coords, lodbias,
 661                                   texel);
 662 }
 663
 664
 665 /**
 666  * Kill fragment if any of the src register values are negative.
 667  */
 668 static void
 669 emit_kil(
 670    struct lp_build_tgsi_soa_context *bld,
 671    const struct tgsi_full_instruction *inst )
 672 {
 673    const struct tgsi_full_src_register *reg = &inst->Src[0];
 674    LLVMValueRef terms[NUM_CHANNELS];
 675    LLVMValueRef mask;
 676    unsigned chan_index;
 677
 678    memset(&terms, 0, sizeof terms);
 679
 680    FOR_EACH_CHANNEL( chan_index ) {
 681       unsigned swizzle;
 682
 683       /* Unswizzle channel */
 684       swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index );
 685
 686       /* Check if the component has not been already tested. */
 687       assert(swizzle < NUM_CHANNELS);
 688       if( !terms[swizzle] )
 689          /* TODO: change the comparison operator instead of setting the sign */
 690          terms[swizzle] =  emit_fetch(bld, inst, 0, chan_index );
 691    }
 692
 693    mask = NULL;
 694    FOR_EACH_CHANNEL( chan_index ) {
 695       if(terms[chan_index]) {
 696          LLVMValueRef chan_mask;
 697
 698          /*
 699           * If term < 0 then mask = 0 else mask = ~0.
 700           */
 701          chan_mask = lp_build_cmp(&bld->base, PIPE_FUNC_GEQUAL, terms[chan_index], bld->base.zero);
 702
 703          if(mask)
 704             mask = LLVMBuildAnd(bld->base.builder, mask, chan_mask, "");
 705          else
 706             mask = chan_mask;
 707       }
 708    }
 709
 710    if(mask)
 711       lp_build_mask_update(bld->mask, mask);
 712 }
 713
 714
 715 /**
 716  * Predicated fragment kill.
 717  * XXX Actually, we do an unconditional kill (as in tgsi_exec.c).
 718  * The only predication is the execution mask which will apply if
 719  * we're inside a loop or conditional.
 720  */
 721 static void
 722 emit_kilp(struct lp_build_tgsi_soa_context *bld,
 723           const struct tgsi_full_instruction *inst)
 724 {
 725    LLVMValueRef mask;
 726
 727    /* For those channels which are "alive", disable fragment shader
 728     * execution.
 729     */
 730    if (bld->exec_mask.has_mask) {
 731       mask = LLVMBuildNot(bld->base.builder, bld->exec_mask.exec_mask, "kilp");
 732    }
 733    else {
 734       mask = bld->base.zero;
 735    }
 736
 737    lp_build_mask_update(bld->mask, mask);
 738 }
 739
 740 static void
 741 emit_declaration(
 742    struct lp_build_tgsi_soa_context *bld,
 743    const struct tgsi_full_declaration *decl)
 744 {
 745    LLVMTypeRef vec_type = lp_build_vec_type(bld->base.type);
 746
 747    unsigned first = decl->Range.First;
 748    unsigned last = decl->Range.Last;
 749    unsigned idx, i;
 750
 751    for (idx = first; idx <= last; ++idx) {
 752       switch (decl->Declaration.File) {
 753       case TGSI_FILE_TEMPORARY:
 754          assert(idx < LP_MAX_TGSI_TEMPS);
 755          if (bld->has_indirect_addressing) {
 756             LLVMValueRef val = LLVMConstInt(LLVMInt32Type(),
 757                                             last*4 + 4, 0);
 758             bld->temps_array = lp_build_array_alloca(bld->base.builder,
 759                                                      vec_type, val, "");
 760          } else {
 761             for (i = 0; i < NUM_CHANNELS; i++)
 762                bld->temps[idx][i] = lp_build_alloca(bld->base.builder,
 763                                                     vec_type, "");
 764          }
 765          break;
 766
 767       case TGSI_FILE_OUTPUT:
 768          for (i = 0; i < NUM_CHANNELS; i++)
 769             bld->outputs[idx][i] = lp_build_alloca(bld->base.builder,
 770                                                    vec_type, "");
 771          break;
 772
 773       case TGSI_FILE_ADDRESS:
 774          assert(idx < LP_MAX_TGSI_ADDRS);
 775          for (i = 0; i < NUM_CHANNELS; i++)
 776             bld->addr[idx][i] = lp_build_alloca(bld->base.builder,
 777                                                 vec_type, "");
 778          break;
 779
 780       case TGSI_FILE_PREDICATE:
 781          _debug_printf("warning: predicate registers not yet implemented\n");
 782          break;
 783
 784       default:
 785          /* don't need to declare other vars */
 786          break;
 787       }
 788    }
 789 }
 790
 791
 792 /**
 793  * Emit LLVM for one TGSI instruction.
 794  * \param return TRUE for success, FALSE otherwise
 795  */
 796 static boolean
 797 emit_instruction(
 798    struct lp_build_tgsi_soa_context *bld,
 799    const struct tgsi_full_instruction *inst,
 800    const struct tgsi_opcode_info *info)
 801 {
 802    unsigned chan_index;
 803    LLVMValueRef src0, src1, src2;
 804    LLVMValueRef tmp0, tmp1, tmp2;
 805    LLVMValueRef tmp3 = NULL;
 806    LLVMValueRef tmp4 = NULL;
 807    LLVMValueRef tmp5 = NULL;
 808    LLVMValueRef tmp6 = NULL;
 809    LLVMValueRef tmp7 = NULL;
 810    LLVMValueRef res;
 811    LLVMValueRef dst0[NUM_CHANNELS];
 812
 813    /*
 814     * Stores and write masks are handled in a general fashion after the long
 815     * instruction opcode switch statement.
 816     *
 817     * Although not stricitly necessary, we avoid generating instructions for
 818     * channels which won't be stored, in cases where's that easy. For some
 819     * complex instructions, like texture sampling, it is more convenient to
 820     * assume a full writemask and then let LLVM optimization passes eliminate
 821     * redundant code.
 822     */
 823
 824    assert(info->num_dst <= 1);
 825    if(info->num_dst) {
 826       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 827          dst0[chan_index] = bld->base.undef;
 828       }
 829    }
 830
 831    switch (inst->Instruction.Opcode) {
 832    case TGSI_OPCODE_ARL:
 833       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 834          tmp0 = emit_fetch( bld, inst, 0, chan_index );
 835          tmp0 = lp_build_floor(&bld->base, tmp0);
 836          dst0[chan_index] = tmp0;
 837       }
 838       break;
 839
 840    case TGSI_OPCODE_MOV:
 841       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 842          dst0[chan_index] = emit_fetch( bld, inst, 0, chan_index );
 843       }
 844       break;
 845
 846    case TGSI_OPCODE_LIT:
 847       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) ) {
 848          dst0[CHAN_X] = bld->base.one;
 849       }
 850       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) ) {
 851          src0 = emit_fetch( bld, inst, 0, CHAN_X );
 852          dst0[CHAN_Y] = lp_build_max( &bld->base, src0, bld->base.zero);
 853       }
 854       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) ) {
 855          /* XMM[1] = SrcReg[0].yyyy */
 856          tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );
 857          /* XMM[1] = max(XMM[1], 0) */
 858          tmp1 = lp_build_max( &bld->base, tmp1, bld->base.zero);
 859          /* XMM[2] = SrcReg[0].wwww */
 860          tmp2 = emit_fetch( bld, inst, 0, CHAN_W );
 861          tmp1 = lp_build_pow( &bld->base, tmp1, tmp2);
 862          tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
 863          tmp2 = lp_build_cmp(&bld->base, PIPE_FUNC_GREATER, tmp0, bld->base.zero);
 864          dst0[CHAN_Z] = lp_build_select(&bld->base, tmp2, tmp1, bld->base.zero);
 865       }
 866       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_W ) ) {
 867          dst0[CHAN_W] = bld->base.one;
 868       }
 869       break;
 870
 871    case TGSI_OPCODE_RCP:
 872    /* TGSI_OPCODE_RECIP */
 873       src0 = emit_fetch( bld, inst, 0, CHAN_X );
 874       res = lp_build_rcp(&bld->base, src0);
 875       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 876          dst0[chan_index] = res;
 877       }
 878       break;
 879
 880    case TGSI_OPCODE_RSQ:
 881    /* TGSI_OPCODE_RECIPSQRT */
 882       src0 = emit_fetch( bld, inst, 0, CHAN_X );
 883       src0 = lp_build_abs(&bld->base, src0);
 884       res = lp_build_rsqrt(&bld->base, src0);
 885       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 886          dst0[chan_index] = res;
 887       }
 888       break;
 889
 890    case TGSI_OPCODE_EXP:
 891       if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) ||
 892           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) ||
 893           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z )) {
 894          LLVMValueRef *p_exp2_int_part = NULL;
 895          LLVMValueRef *p_frac_part = NULL;
 896          LLVMValueRef *p_exp2 = NULL;
 897
 898          src0 = emit_fetch( bld, inst, 0, CHAN_X );
 899
 900          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ))
 901             p_exp2_int_part = &tmp0;
 902          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ))
 903             p_frac_part = &tmp1;
 904          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ))
 905             p_exp2 = &tmp2;
 906
 907          lp_build_exp2_approx(&bld->base, src0, p_exp2_int_part, p_frac_part, p_exp2);
 908
 909          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ))
 910             dst0[CHAN_X] = tmp0;
 911          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ))
 912             dst0[CHAN_Y] = tmp1;
 913          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ))
 914             dst0[CHAN_Z] = tmp2;
 915       }
 916       /* dst.w = 1.0 */
 917       if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_W )) {
 918          dst0[CHAN_W] = bld->base.one;
 919       }
 920       break;
 921
 922    case TGSI_OPCODE_LOG:
 923       if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) ||
 924           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) ||
 925           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z )) {
 926          LLVMValueRef *p_floor_log2 = NULL;
 927          LLVMValueRef *p_exp = NULL;
 928          LLVMValueRef *p_log2 = NULL;
 929
 930          src0 = emit_fetch( bld, inst, 0, CHAN_X );
 931          src0 = lp_build_abs( &bld->base, src0 );
 932
 933          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ))
 934             p_floor_log2 = &tmp0;
 935          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ))
 936             p_exp = &tmp1;
 937          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ))
 938             p_log2 = &tmp2;
 939
 940          lp_build_log2_approx(&bld->base, src0, p_exp, p_floor_log2, p_log2);
 941
 942          /* dst.x = floor(lg2(abs(src.x))) */
 943          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ))
 944             dst0[CHAN_X] = tmp0;
 945          /* dst.y = abs(src)/ex2(floor(lg2(abs(src.x)))) */
 946          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y )) {
 947             dst0[CHAN_Y] = lp_build_div( &bld->base, src0, tmp1);
 948          }
 949          /* dst.z = lg2(abs(src.x)) */
 950          if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ))
 951             dst0[CHAN_Z] = tmp2;
 952       }
 953       /* dst.w = 1.0 */
 954       if (IS_DST0_CHANNEL_ENABLED( inst, CHAN_W )) {
 955          dst0[CHAN_W] = bld->base.one;
 956       }
 957       break;
 958
 959    case TGSI_OPCODE_MUL:
 960       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 961          src0 = emit_fetch( bld, inst, 0, chan_index );
 962          src1 = emit_fetch( bld, inst, 1, chan_index );
 963          dst0[chan_index] = lp_build_mul(&bld->base, src0, src1);
 964       }
 965       break;
 966
 967    case TGSI_OPCODE_ADD:
 968       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 969          src0 = emit_fetch( bld, inst, 0, chan_index );
 970          src1 = emit_fetch( bld, inst, 1, chan_index );
 971          dst0[chan_index] = lp_build_add(&bld->base, src0, src1);
 972       }
 973       break;
 974
 975    case TGSI_OPCODE_DP3:
 976    /* TGSI_OPCODE_DOT3 */
 977       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
 978       tmp1 = emit_fetch( bld, inst, 1, CHAN_X );
 979       tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);
 980       tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );
 981       tmp2 = emit_fetch( bld, inst, 1, CHAN_Y );
 982       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
 983       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
 984       tmp1 = emit_fetch( bld, inst, 0, CHAN_Z );
 985       tmp2 = emit_fetch( bld, inst, 1, CHAN_Z );
 986       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
 987       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
 988       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
 989          dst0[chan_index] = tmp0;
 990       }
 991       break;
 992
 993    case TGSI_OPCODE_DP4:
 994    /* TGSI_OPCODE_DOT4 */
 995       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
 996       tmp1 = emit_fetch( bld, inst, 1, CHAN_X );
 997       tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);
 998       tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );
 999       tmp2 = emit_fetch( bld, inst, 1, CHAN_Y );
1000       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
1001       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1002       tmp1 = emit_fetch( bld, inst, 0, CHAN_Z );
1003       tmp2 = emit_fetch( bld, inst, 1, CHAN_Z );
1004       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
1005       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1006       tmp1 = emit_fetch( bld, inst, 0, CHAN_W );
1007       tmp2 = emit_fetch( bld, inst, 1, CHAN_W );
1008       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
1009       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1010       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1011          dst0[chan_index] = tmp0;
1012       }
1013       break;
1014
1015    case TGSI_OPCODE_DST:
1016       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) {
1017          dst0[CHAN_X] = bld->base.one;
1018       }
1019       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) {
1020          tmp0 = emit_fetch( bld, inst, 0, CHAN_Y );
1021          tmp1 = emit_fetch( bld, inst, 1, CHAN_Y );
1022          dst0[CHAN_Y] = lp_build_mul( &bld->base, tmp0, tmp1);
1023       }
1024       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) {
1025          dst0[CHAN_Z] = emit_fetch( bld, inst, 0, CHAN_Z );
1026       }
1027       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_W ) {
1028          dst0[CHAN_W] = emit_fetch( bld, inst, 1, CHAN_W );
1029       }
1030       break;
1031
1032    case TGSI_OPCODE_MIN:
1033       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1034          src0 = emit_fetch( bld, inst, 0, chan_index );
1035          src1 = emit_fetch( bld, inst, 1, chan_index );
1036          dst0[chan_index] = lp_build_min( &bld->base, src0, src1 );
1037       }
1038       break;
1039
1040    case TGSI_OPCODE_MAX:
1041       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1042          src0 = emit_fetch( bld, inst, 0, chan_index );
1043          src1 = emit_fetch( bld, inst, 1, chan_index );
1044          dst0[chan_index] = lp_build_max( &bld->base, src0, src1 );
1045       }
1046       break;
1047
1048    case TGSI_OPCODE_SLT:
1049    /* TGSI_OPCODE_SETLT */
1050       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1051          src0 = emit_fetch( bld, inst, 0, chan_index );
1052          src1 = emit_fetch( bld, inst, 1, chan_index );
1053          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_LESS, src0, src1 );
1054          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1055       }
1056       break;
1057
1058    case TGSI_OPCODE_SGE:
1059    /* TGSI_OPCODE_SETGE */
1060       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1061          src0 = emit_fetch( bld, inst, 0, chan_index );
1062          src1 = emit_fetch( bld, inst, 1, chan_index );
1063          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_GEQUAL, src0, src1 );
1064          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1065       }
1066       break;
1067
1068    case TGSI_OPCODE_MAD:
1069    /* TGSI_OPCODE_MADD */
1070       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1071          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1072          tmp1 = emit_fetch( bld, inst, 1, chan_index );
1073          tmp2 = emit_fetch( bld, inst, 2, chan_index );
1074          tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);
1075          tmp0 = lp_build_add( &bld->base, tmp0, tmp2);
1076          dst0[chan_index] = tmp0;
1077       }
1078       break;
1079
1080    case TGSI_OPCODE_SUB:
1081       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1082          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1083          tmp1 = emit_fetch( bld, inst, 1, chan_index );
1084          dst0[chan_index] = lp_build_sub( &bld->base, tmp0, tmp1);
1085       }
1086       break;
1087
1088    case TGSI_OPCODE_LRP:
1089       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1090          src0 = emit_fetch( bld, inst, 0, chan_index );
1091          src1 = emit_fetch( bld, inst, 1, chan_index );
1092          src2 = emit_fetch( bld, inst, 2, chan_index );
1093          tmp0 = lp_build_sub( &bld->base, src1, src2 );
1094          tmp0 = lp_build_mul( &bld->base, src0, tmp0 );
1095          dst0[chan_index] = lp_build_add( &bld->base, tmp0, src2 );
1096       }
1097       break;
1098
1099    case TGSI_OPCODE_CND:
1100       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1101          src0 = emit_fetch( bld, inst, 0, chan_index );
1102          src1 = emit_fetch( bld, inst, 1, chan_index );
1103          src2 = emit_fetch( bld, inst, 2, chan_index );
1104          tmp1 = lp_build_const_vec(bld->base.type, 0.5);
1105          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_GREATER, src2, tmp1);
1106          dst0[chan_index] = lp_build_select( &bld->base, tmp0, src0, src1 );
1107       }
1108       break;
1109
1110    case TGSI_OPCODE_DP2A:
1111       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );  /* xmm0 = src[0].x */
1112       tmp1 = emit_fetch( bld, inst, 1, CHAN_X );  /* xmm1 = src[1].x */
1113       tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);              /* xmm0 = xmm0 * xmm1 */
1114       tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );  /* xmm1 = src[0].y */
1115       tmp2 = emit_fetch( bld, inst, 1, CHAN_Y );  /* xmm2 = src[1].y */
1116       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);              /* xmm1 = xmm1 * xmm2 */
1117       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);              /* xmm0 = xmm0 + xmm1 */
1118       tmp1 = emit_fetch( bld, inst, 2, CHAN_X );  /* xmm1 = src[2].x */
1119       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);              /* xmm0 = xmm0 + xmm1 */
1120       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1121          dst0[chan_index] = tmp0;  /* dest[ch] = xmm0 */
1122       }
1123       break;
1124
1125    case TGSI_OPCODE_FRC:
1126       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1127          src0 = emit_fetch( bld, inst, 0, chan_index );
1128          tmp0 = lp_build_floor(&bld->base, src0);
1129          tmp0 = lp_build_sub(&bld->base, src0, tmp0);
1130          dst0[chan_index] = tmp0;
1131       }
1132       break;
1133
1134    case TGSI_OPCODE_CLAMP:
1135       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1136          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1137          src1 = emit_fetch( bld, inst, 1, chan_index );
1138          src2 = emit_fetch( bld, inst, 2, chan_index );
1139          tmp0 = lp_build_max(&bld->base, tmp0, src1);
1140          tmp0 = lp_build_min(&bld->base, tmp0, src2);
1141          dst0[chan_index] = tmp0;
1142       }
1143       break;
1144
1145    case TGSI_OPCODE_FLR:
1146       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1147          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1148          dst0[chan_index] = lp_build_floor(&bld->base, tmp0);
1149       }
1150       break;
1151
1152    case TGSI_OPCODE_ROUND:
1153       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1154          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1155          dst0[chan_index] = lp_build_round(&bld->base, tmp0);
1156       }
1157       break;
1158
1159    case TGSI_OPCODE_EX2: {
1160       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1161       tmp0 = lp_build_exp2( &bld->base, tmp0);
1162       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1163          dst0[chan_index] = tmp0;
1164       }
1165       break;
1166    }
1167
1168    case TGSI_OPCODE_LG2:
1169       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1170       tmp0 = lp_build_log2( &bld->base, tmp0);
1171       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1172          dst0[chan_index] = tmp0;
1173       }
1174       break;
1175
1176    case TGSI_OPCODE_POW:
1177       src0 = emit_fetch( bld, inst, 0, CHAN_X );
1178       src1 = emit_fetch( bld, inst, 1, CHAN_X );
1179       res = lp_build_pow( &bld->base, src0, src1 );
1180       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1181          dst0[chan_index] = res;
1182       }
1183       break;
1184
1185    case TGSI_OPCODE_XPD:
1186       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) ||
1187           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) ) {
1188          tmp1 = emit_fetch( bld, inst, 1, CHAN_Z );
1189          tmp3 = emit_fetch( bld, inst, 0, CHAN_Z );
1190       }
1191       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) ||
1192           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) ) {
1193          tmp0 = emit_fetch( bld, inst, 0, CHAN_Y );
1194          tmp4 = emit_fetch( bld, inst, 1, CHAN_Y );
1195       }
1196       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) {
1197          tmp2 = tmp0;
1198          tmp2 = lp_build_mul( &bld->base, tmp2, tmp1);
1199          tmp5 = tmp3;
1200          tmp5 = lp_build_mul( &bld->base, tmp5, tmp4);
1201          tmp2 = lp_build_sub( &bld->base, tmp2, tmp5);
1202          dst0[CHAN_X] = tmp2;
1203       }
1204       if( IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) ||
1205           IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) ) {
1206          tmp2 = emit_fetch( bld, inst, 1, CHAN_X );
1207          tmp5 = emit_fetch( bld, inst, 0, CHAN_X );
1208       }
1209       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) {
1210          tmp3 = lp_build_mul( &bld->base, tmp3, tmp2);
1211          tmp1 = lp_build_mul( &bld->base, tmp1, tmp5);
1212          tmp3 = lp_build_sub( &bld->base, tmp3, tmp1);
1213          dst0[CHAN_Y] = tmp3;
1214       }
1215       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) {
1216          tmp5 = lp_build_mul( &bld->base, tmp5, tmp4);
1217          tmp0 = lp_build_mul( &bld->base, tmp0, tmp2);
1218          tmp5 = lp_build_sub( &bld->base, tmp5, tmp0);
1219          dst0[CHAN_Z] = tmp5;
1220       }
1221       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_W ) {
1222          dst0[CHAN_W] = bld->base.one;
1223       }
1224       break;
1225
1226    case TGSI_OPCODE_ABS:
1227       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1228          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1229          dst0[chan_index] = lp_build_abs( &bld->base, tmp0 );
1230       }
1231       break;
1232
1233    case TGSI_OPCODE_RCC:
1234       /* deprecated? */
1235       assert(0);
1236       return FALSE;
1237
1238    case TGSI_OPCODE_DPH:
1239       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1240       tmp1 = emit_fetch( bld, inst, 1, CHAN_X );
1241       tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);
1242       tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );
1243       tmp2 = emit_fetch( bld, inst, 1, CHAN_Y );
1244       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
1245       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1246       tmp1 = emit_fetch( bld, inst, 0, CHAN_Z );
1247       tmp2 = emit_fetch( bld, inst, 1, CHAN_Z );
1248       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);
1249       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1250       tmp1 = emit_fetch( bld, inst, 1, CHAN_W );
1251       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1252       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1253          dst0[chan_index] = tmp0;
1254       }
1255       break;
1256
1257    case TGSI_OPCODE_COS:
1258       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1259       tmp0 = lp_build_cos( &bld->base, tmp0 );
1260       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1261          dst0[chan_index] = tmp0;
1262       }
1263       break;
1264
1265    case TGSI_OPCODE_DDX:
1266       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1267          emit_fetch_deriv( bld, inst, 0, chan_index, NULL, &dst0[chan_index], NULL);
1268       }
1269       break;
1270
1271    case TGSI_OPCODE_DDY:
1272       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1273          emit_fetch_deriv( bld, inst, 0, chan_index, NULL, NULL, &dst0[chan_index]);
1274       }
1275       break;
1276
1277    case TGSI_OPCODE_KILP:
1278       /* predicated kill */
1279       emit_kilp( bld, inst );
1280       break;
1281
1282    case TGSI_OPCODE_KIL:
1283       /* conditional kill */
1284       emit_kil( bld, inst );
1285       break;
1286
1287    case TGSI_OPCODE_PK2H:
1288       return FALSE;
1289       break;
1290
1291    case TGSI_OPCODE_PK2US:
1292       return FALSE;
1293       break;
1294
1295    case TGSI_OPCODE_PK4B:
1296       return FALSE;
1297       break;
1298
1299    case TGSI_OPCODE_PK4UB:
1300       return FALSE;
1301       break;
1302
1303    case TGSI_OPCODE_RFL:
1304       return FALSE;
1305       break;
1306
1307    case TGSI_OPCODE_SEQ:
1308       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1309          src0 = emit_fetch( bld, inst, 0, chan_index );
1310          src1 = emit_fetch( bld, inst, 1, chan_index );
1311          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_EQUAL, src0, src1 );
1312          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1313       }
1314       break;
1315
1316    case TGSI_OPCODE_SFL:
1317       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1318          dst0[chan_index] = bld->base.zero;
1319       }
1320       break;
1321
1322    case TGSI_OPCODE_SGT:
1323       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1324          src0 = emit_fetch( bld, inst, 0, chan_index );
1325          src1 = emit_fetch( bld, inst, 1, chan_index );
1326          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_GREATER, src0, src1 );
1327          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1328       }
1329       break;
1330
1331    case TGSI_OPCODE_SIN:
1332       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1333       tmp0 = lp_build_sin( &bld->base, tmp0 );
1334       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1335          dst0[chan_index] = tmp0;
1336       }
1337       break;
1338
1339    case TGSI_OPCODE_SLE:
1340       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1341          src0 = emit_fetch( bld, inst, 0, chan_index );
1342          src1 = emit_fetch( bld, inst, 1, chan_index );
1343          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_LEQUAL, src0, src1 );
1344          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1345       }
1346       break;
1347
1348    case TGSI_OPCODE_SNE:
1349       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1350          src0 = emit_fetch( bld, inst, 0, chan_index );
1351          src1 = emit_fetch( bld, inst, 1, chan_index );
1352          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_NOTEQUAL, src0, src1 );
1353          dst0[chan_index] = lp_build_select( &bld->base, tmp0, bld->base.one, bld->base.zero );
1354       }
1355       break;
1356
1357    case TGSI_OPCODE_STR:
1358       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1359          dst0[chan_index] = bld->base.one;
1360       }
1361       break;
1362
1363    case TGSI_OPCODE_TEX:
1364       emit_tex( bld, inst, FALSE, FALSE, dst0 );
1365       break;
1366
1367    case TGSI_OPCODE_TXD:
1368       /* FIXME */
1369       return FALSE;
1370       break;
1371
1372    case TGSI_OPCODE_UP2H:
1373       /* deprecated */
1374       assert (0);
1375       return FALSE;
1376       break;
1377
1378    case TGSI_OPCODE_UP2US:
1379       /* deprecated */
1380       assert(0);
1381       return FALSE;
1382       break;
1383
1384    case TGSI_OPCODE_UP4B:
1385       /* deprecated */
1386       assert(0);
1387       return FALSE;
1388       break;
1389
1390    case TGSI_OPCODE_UP4UB:
1391       /* deprecated */
1392       assert(0);
1393       return FALSE;
1394       break;
1395
1396    case TGSI_OPCODE_X2D:
1397       /* deprecated? */
1398       assert(0);
1399       return FALSE;
1400       break;
1401
1402    case TGSI_OPCODE_ARA:
1403       /* deprecated */
1404       assert(0);
1405       return FALSE;
1406       break;
1407
1408    case TGSI_OPCODE_ARR:
1409       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1410          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1411          tmp0 = lp_build_round(&bld->base, tmp0);
1412          dst0[chan_index] = tmp0;
1413       }
1414       break;
1415
1416    case TGSI_OPCODE_BRA:
1417       /* deprecated */
1418       assert(0);
1419       return FALSE;
1420       break;
1421
1422    case TGSI_OPCODE_CAL:
1423       /* FIXME */
1424       return FALSE;
1425       break;
1426
1427    case TGSI_OPCODE_RET:
1428       /* FIXME */
1429       return FALSE;
1430       break;
1431
1432    case TGSI_OPCODE_END:
1433       break;
1434
1435    case TGSI_OPCODE_SSG:
1436    /* TGSI_OPCODE_SGN */
1437       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1438          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1439          dst0[chan_index] = lp_build_sgn( &bld->base, tmp0 );
1440       }
1441       break;
1442
1443    case TGSI_OPCODE_CMP:
1444       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1445          src0 = emit_fetch( bld, inst, 0, chan_index );
1446          src1 = emit_fetch( bld, inst, 1, chan_index );
1447          src2 = emit_fetch( bld, inst, 2, chan_index );
1448          tmp0 = lp_build_cmp( &bld->base, PIPE_FUNC_LESS, src0, bld->base.zero );
1449          dst0[chan_index] = lp_build_select( &bld->base, tmp0, src1, src2);
1450       }
1451       break;
1452
1453    case TGSI_OPCODE_SCS:
1454       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_X ) {
1455          tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1456          dst0[CHAN_X] = lp_build_cos( &bld->base, tmp0 );
1457       }
1458       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Y ) {
1459          tmp0 = emit_fetch( bld, inst, 0, CHAN_X );
1460          dst0[CHAN_Y] = lp_build_sin( &bld->base, tmp0 );
1461       }
1462       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_Z ) {
1463          dst0[CHAN_Z] = bld->base.zero;
1464       }
1465       IF_IS_DST0_CHANNEL_ENABLED( inst, CHAN_W ) {
1466          dst0[CHAN_W] = bld->base.one;
1467       }
1468       break;
1469
1470    case TGSI_OPCODE_TXB:
1471       emit_tex( bld, inst, TRUE, FALSE, dst0 );
1472       break;
1473
1474    case TGSI_OPCODE_NRM:
1475       /* fall-through */
1476    case TGSI_OPCODE_NRM4:
1477       /* 3 or 4-component normalization */
1478       {
1479          uint dims = (inst->Instruction.Opcode == TGSI_OPCODE_NRM) ? 3 : 4;
1480
1481          if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_X) ||
1482              IS_DST0_CHANNEL_ENABLED(inst, CHAN_Y) ||
1483              IS_DST0_CHANNEL_ENABLED(inst, CHAN_Z) ||
1484              (IS_DST0_CHANNEL_ENABLED(inst, CHAN_W) && dims == 4)) {
1485
1486             /* NOTE: Cannot use xmm regs 2/3 here (see emit_rsqrt() above). */
1487
1488             /* xmm4 = src.x */
1489             /* xmm0 = src.x * src.x */
1490             tmp0 = emit_fetch(bld, inst, 0, CHAN_X);
1491             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_X)) {
1492                tmp4 = tmp0;
1493             }
1494             tmp0 = lp_build_mul( &bld->base, tmp0, tmp0);
1495
1496             /* xmm5 = src.y */
1497             /* xmm0 = xmm0 + src.y * src.y */
1498             tmp1 = emit_fetch(bld, inst, 0, CHAN_Y);
1499             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_Y)) {
1500                tmp5 = tmp1;
1501             }
1502             tmp1 = lp_build_mul( &bld->base, tmp1, tmp1);
1503             tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1504
1505             /* xmm6 = src.z */
1506             /* xmm0 = xmm0 + src.z * src.z */
1507             tmp1 = emit_fetch(bld, inst, 0, CHAN_Z);
1508             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_Z)) {
1509                tmp6 = tmp1;
1510             }
1511             tmp1 = lp_build_mul( &bld->base, tmp1, tmp1);
1512             tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1513
1514             if (dims == 4) {
1515                /* xmm7 = src.w */
1516                /* xmm0 = xmm0 + src.w * src.w */
1517                tmp1 = emit_fetch(bld, inst, 0, CHAN_W);
1518                if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_W)) {
1519                   tmp7 = tmp1;
1520                }
1521                tmp1 = lp_build_mul( &bld->base, tmp1, tmp1);
1522                tmp0 = lp_build_add( &bld->base, tmp0, tmp1);
1523             }
1524
1525             /* xmm1 = 1 / sqrt(xmm0) */
1526             tmp1 = lp_build_rsqrt( &bld->base, tmp0);
1527
1528             /* dst.x = xmm1 * src.x */
1529             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_X)) {
1530                dst0[CHAN_X] = lp_build_mul( &bld->base, tmp4, tmp1);
1531             }
1532
1533             /* dst.y = xmm1 * src.y */
1534             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_Y)) {
1535                dst0[CHAN_Y] = lp_build_mul( &bld->base, tmp5, tmp1);
1536             }
1537
1538             /* dst.z = xmm1 * src.z */
1539             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_Z)) {
1540                dst0[CHAN_Z] = lp_build_mul( &bld->base, tmp6, tmp1);
1541             }
1542
1543             /* dst.w = xmm1 * src.w */
1544             if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_X) && dims == 4) {
1545                dst0[CHAN_W] = lp_build_mul( &bld->base, tmp7, tmp1);
1546             }
1547          }
1548
1549          /* dst.w = 1.0 */
1550          if (IS_DST0_CHANNEL_ENABLED(inst, CHAN_W) && dims == 3) {
1551             dst0[CHAN_W] = bld->base.one;
1552          }
1553       }
1554       break;
1555
1556    case TGSI_OPCODE_DIV:
1557       /* deprecated */
1558       assert( 0 );
1559       return FALSE;
1560       break;
1561
1562    case TGSI_OPCODE_DP2:
1563       tmp0 = emit_fetch( bld, inst, 0, CHAN_X );  /* xmm0 = src[0].x */
1564       tmp1 = emit_fetch( bld, inst, 1, CHAN_X );  /* xmm1 = src[1].x */
1565       tmp0 = lp_build_mul( &bld->base, tmp0, tmp1);              /* xmm0 = xmm0 * xmm1 */
1566       tmp1 = emit_fetch( bld, inst, 0, CHAN_Y );  /* xmm1 = src[0].y */
1567       tmp2 = emit_fetch( bld, inst, 1, CHAN_Y );  /* xmm2 = src[1].y */
1568       tmp1 = lp_build_mul( &bld->base, tmp1, tmp2);              /* xmm1 = xmm1 * xmm2 */
1569       tmp0 = lp_build_add( &bld->base, tmp0, tmp1);              /* xmm0 = xmm0 + xmm1 */
1570       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1571          dst0[chan_index] = tmp0;  /* dest[ch] = xmm0 */
1572       }
1573       break;
1574
1575    case TGSI_OPCODE_TXL:
1576       emit_tex( bld, inst, TRUE, FALSE, dst0 );
1577       break;
1578
1579    case TGSI_OPCODE_TXP:
1580       emit_tex( bld, inst, FALSE, TRUE, dst0 );
1581       break;
1582
1583    case TGSI_OPCODE_BRK:
1584       lp_exec_break(&bld->exec_mask);
1585       break;
1586
1587    case TGSI_OPCODE_IF:
1588       tmp0 = emit_fetch(bld, inst, 0, CHAN_X);
1589       tmp0 = lp_build_cmp(&bld->base, PIPE_FUNC_NOTEQUAL,
1590                           tmp0, bld->base.zero);
1591       lp_exec_mask_cond_push(&bld->exec_mask, tmp0);
1592       break;
1593
1594    case TGSI_OPCODE_BGNLOOP:
1595       lp_exec_bgnloop(&bld->exec_mask);
1596       break;
1597
1598    case TGSI_OPCODE_ELSE:
1599       lp_exec_mask_cond_invert(&bld->exec_mask);
1600       break;
1601
1602    case TGSI_OPCODE_ENDIF:
1603       lp_exec_mask_cond_pop(&bld->exec_mask);
1604       break;
1605
1606    case TGSI_OPCODE_ENDLOOP:
1607       lp_exec_endloop(&bld->exec_mask);
1608       break;
1609
1610    case TGSI_OPCODE_PUSHA:
1611       /* deprecated? */
1612       assert(0);
1613       return FALSE;
1614       break;
1615
1616    case TGSI_OPCODE_POPA:
1617       /* deprecated? */
1618       assert(0);
1619       return FALSE;
1620       break;
1621
1622    case TGSI_OPCODE_CEIL:
1623       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1624          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1625          dst0[chan_index] = lp_build_ceil(&bld->base, tmp0);
1626       }
1627       break;
1628
1629    case TGSI_OPCODE_I2F:
1630       /* deprecated? */
1631       assert(0);
1632       return FALSE;
1633       break;
1634
1635    case TGSI_OPCODE_NOT:
1636       /* deprecated? */
1637       assert(0);
1638       return FALSE;
1639       break;
1640
1641    case TGSI_OPCODE_TRUNC:
1642       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1643          tmp0 = emit_fetch( bld, inst, 0, chan_index );
1644          dst0[chan_index] = lp_build_trunc(&bld->base, tmp0);
1645       }
1646       break;
1647
1648    case TGSI_OPCODE_SHL:
1649       /* deprecated? */
1650       assert(0);
1651       return FALSE;
1652       break;
1653
1654    case TGSI_OPCODE_ISHR:
1655       /* deprecated? */
1656       assert(0);
1657       return FALSE;
1658       break;
1659
1660    case TGSI_OPCODE_AND:
1661       /* deprecated? */
1662       assert(0);
1663       return FALSE;
1664       break;
1665
1666    case TGSI_OPCODE_OR:
1667       /* deprecated? */
1668       assert(0);
1669       return FALSE;
1670       break;
1671
1672    case TGSI_OPCODE_MOD:
1673       /* deprecated? */
1674       assert(0);
1675       return FALSE;
1676       break;
1677
1678    case TGSI_OPCODE_XOR:
1679       /* deprecated? */
1680       assert(0);
1681       return FALSE;
1682       break;
1683
1684    case TGSI_OPCODE_SAD:
1685       /* deprecated? */
1686       assert(0);
1687       return FALSE;
1688       break;
1689
1690    case TGSI_OPCODE_TXF:
1691       /* deprecated? */
1692       assert(0);
1693       return FALSE;
1694       break;
1695
1696    case TGSI_OPCODE_TXQ:
1697       /* deprecated? */
1698       assert(0);
1699       return FALSE;
1700       break;
1701
1702    case TGSI_OPCODE_CONT:
1703       lp_exec_continue(&bld->exec_mask);
1704       break;
1705
1706    case TGSI_OPCODE_EMIT:
1707       return FALSE;
1708       break;
1709
1710    case TGSI_OPCODE_ENDPRIM:
1711       return FALSE;
1712       break;
1713
1714    case TGSI_OPCODE_NOP:
1715       break;
1716
1717    default:
1718       return FALSE;
1719    }
1720
1721    if(info->num_dst) {
1722       FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) {
1723          emit_store( bld, inst, 0, chan_index, dst0[chan_index]);
1724       }
1725    }
1726
1727    return TRUE;
1728 }
1729
1730
1731 void
1732 lp_build_tgsi_soa(LLVMBuilderRef builder,
1733                   const struct tgsi_token *tokens,
1734                   struct lp_type type,
1735                   struct lp_build_mask_context *mask,
1736                   LLVMValueRef consts_ptr,
1737                   const LLVMValueRef *pos,
1738                   const LLVMValueRef (*inputs)[NUM_CHANNELS],
1739                   LLVMValueRef (*outputs)[NUM_CHANNELS],
1740                   struct lp_build_sampler_soa *sampler,
1741                   struct tgsi_shader_info *info)
1742 {
1743    struct lp_build_tgsi_soa_context bld;
1744    struct tgsi_parse_context parse;
1745    uint num_immediates = 0;
1746    unsigned i;
1747
1748    /* Setup build context */
1749    memset(&bld, 0, sizeof bld);
1750    lp_build_context_init(&bld.base, builder, type);
1751    bld.mask = mask;
1752    bld.pos = pos;
1753    bld.inputs = inputs;
1754    bld.outputs = outputs;
1755    bld.consts_ptr = consts_ptr;
1756    bld.sampler = sampler;
1757    bld.has_indirect_addressing = info->opcode_count[TGSI_OPCODE_ARR] > 0 ||
1758                                  info->opcode_count[TGSI_OPCODE_ARL] > 0;
1759
1760    lp_exec_mask_init(&bld.exec_mask, &bld.base);
1761
1762    tgsi_parse_init( &parse, tokens );
1763
1764    while( !tgsi_parse_end_of_tokens( &parse ) ) {
1765       tgsi_parse_token( &parse );
1766
1767       switch( parse.FullToken.Token.Type ) {
1768       case TGSI_TOKEN_TYPE_DECLARATION:
1769          /* Inputs already interpolated */
1770          emit_declaration( &bld, &parse.FullToken.FullDeclaration );
1771          break;
1772
1773       case TGSI_TOKEN_TYPE_INSTRUCTION:
1774          {
1775             unsigned opcode = parse.FullToken.FullInstruction.Instruction.Opcode;
1776             const struct tgsi_opcode_info *opcode_info = tgsi_get_opcode_info(opcode);
1777             if (!emit_instruction( &bld, &parse.FullToken.FullInstruction, opcode_info ))
1778                _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
1779                              opcode_info->mnemonic);
1780          }
1781
1782          break;
1783
1784       case TGSI_TOKEN_TYPE_IMMEDIATE:
1785          /* simply copy the immediate values into the next immediates[] slot */
1786          {
1787             const uint size = parse.FullToken.FullImmediate.Immediate.NrTokens - 1;
1788             assert(size <= 4);
1789             assert(num_immediates < LP_MAX_TGSI_IMMEDIATES);
1790             for( i = 0; i < size; ++i )
1791                bld.immediates[num_immediates][i] =
1792                   lp_build_const_vec(type, parse.FullToken.FullImmediate.u[i].Float);
1793             for( i = size; i < 4; ++i )
1794                bld.immediates[num_immediates][i] = bld.base.undef;
1795             num_immediates++;
1796          }
1797          break;
1798
1799       case TGSI_TOKEN_TYPE_PROPERTY:
1800          break;
1801
1802       default:
1803          assert( 0 );
1804       }
1805    }
1806    if (0) {
1807       LLVMBasicBlockRef block = LLVMGetInsertBlock(builder);
1808       LLVMValueRef function = LLVMGetBasicBlockParent(block);
1809       debug_printf("11111111111111111111111111111 \n");
1810       tgsi_dump(tokens, 0);
1811       LLVMDumpValue(function);
1812       debug_printf("2222222222222222222222222222 \n");
1813    }
1814    tgsi_parse_free( &parse );
1815 }
1816