src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * TGSI to LLVM IR translation -- AoS.
  31  *
  32  * FIXME:
  33  * - No control flow support: the existing control flow code should be factored
  34  * out into from the SoA code into a common module and shared.
  35  * - No derivatives. Derivate logic should be pluggable, just like the samplers.
  36  *
  37  * @author Jose Fonseca <jfonseca@vmware.com>
  38  */
  39
  40 #include "pipe/p_config.h"
  41 #include "pipe/p_shader_tokens.h"
  42 #include "util/u_debug.h"
  43 #include "util/u_math.h"
  44 #include "util/u_memory.h"
  45 #include "tgsi/tgsi_dump.h"
  46 #include "tgsi/tgsi_info.h"
  47 #include "tgsi/tgsi_parse.h"
  48 #include "tgsi/tgsi_util.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_quad.h"
  57 #include "lp_bld_tgsi.h"
  58 #include "lp_bld_debug.h"
  59 #include "lp_bld_sample.h"
  60
  61
  62 /**
  63  * Wrapper around lp_build_swizzle_aos which translates swizzles to another
  64  * ordering.
  65  */
  66 static LLVMValueRef
  67 swizzle_aos(struct lp_build_tgsi_context *bld_base,
  68             LLVMValueRef a,
  69             unsigned swizzle_x,
  70             unsigned swizzle_y,
  71             unsigned swizzle_z,
  72             unsigned swizzle_w)
  73 {
  74    unsigned char swizzles[4];
  75    struct lp_build_tgsi_aos_context *bld = lp_aos_context(bld_base);
  76
  77    assert(swizzle_x < 4);
  78    assert(swizzle_y < 4);
  79    assert(swizzle_z < 4);
  80    assert(swizzle_w < 4);
  81
  82    swizzles[bld->inv_swizzles[0]] = bld->swizzles[swizzle_x];
  83    swizzles[bld->inv_swizzles[1]] = bld->swizzles[swizzle_y];
  84    swizzles[bld->inv_swizzles[2]] = bld->swizzles[swizzle_z];
  85    swizzles[bld->inv_swizzles[3]] = bld->swizzles[swizzle_w];
  86
  87    return lp_build_swizzle_aos(&bld->bld_base.base, a, swizzles);
  88 }
  89
  90
  91 static LLVMValueRef
  92 swizzle_scalar_aos(struct lp_build_tgsi_aos_context *bld,
  93                    LLVMValueRef a,
  94                    unsigned chan)
  95 {
  96    chan = bld->swizzles[chan];
  97    return lp_build_swizzle_scalar_aos(&bld->bld_base.base, a, chan);
  98 }
  99
 100
 101 static LLVMValueRef
 102 emit_fetch_constant(
 103    struct lp_build_tgsi_context * bld_base,
 104    const struct tgsi_full_src_register * reg,
 105    enum tgsi_opcode_type stype,
 106    unsigned swizzle)
 107 {
 108    struct lp_build_tgsi_aos_context * bld = lp_aos_context(bld_base);
 109    LLVMBuilderRef builder = bld_base->base.gallivm->builder;
 110    struct lp_type type = bld_base->base.type;
 111    LLVMValueRef res;
 112    unsigned chan;
 113
 114    assert(!reg->Register.Indirect);
 115
 116    /*
 117     * Get the constants components
 118     */
 119
 120    res = bld->bld_base.base.undef;
 121    for (chan = 0; chan < 4; ++chan) {
 122       LLVMValueRef index;
 123       LLVMValueRef scalar_ptr;
 124       LLVMValueRef scalar;
 125       LLVMValueRef swizzle;
 126
 127       index = lp_build_const_int32(bld->bld_base.base.gallivm,
 128                                    reg->Register.Index * 4 + chan);
 129
 130       scalar_ptr = LLVMBuildGEP(builder, bld->consts_ptr, &index, 1, "");
 131
 132       scalar = LLVMBuildLoad(builder, scalar_ptr, "");
 133
 134       lp_build_name(scalar, "const[%u].%c", reg->Register.Index, "xyzw"[chan]);
 135
 136       /*
 137        * NOTE: constants array is always assumed to be RGBA
 138        */
 139
 140       swizzle = lp_build_const_int32(bld->bld_base.base.gallivm,
 141                                      bld->swizzles[chan]);
 142
 143       res = LLVMBuildInsertElement(builder, res, scalar, swizzle, "");
 144    }
 145
 146    /*
 147     * Broadcast the first quaternion to all others.
 148     *
 149     * XXX: could be factored into a reusable function.
 150     */
 151
 152    if (type.length > 4) {
 153       LLVMValueRef shuffles[LP_MAX_VECTOR_LENGTH];
 154       unsigned i;
 155
 156       for (chan = 0; chan < 4; ++chan) {
 157          shuffles[chan] = lp_build_const_int32(bld->bld_base.base.gallivm, chan);
 158       }
 159
 160       for (i = 4; i < type.length; ++i) {
 161          shuffles[i] = shuffles[i % 4];
 162       }
 163
 164       res = LLVMBuildShuffleVector(builder,
 165                                    res, bld->bld_base.base.undef,
 166                                    LLVMConstVector(shuffles, type.length),
 167                                    "");
 168    }
 169    return res;
 170 }
 171
 172 static LLVMValueRef
 173 emit_fetch_immediate(
 174    struct lp_build_tgsi_context * bld_base,
 175    const struct tgsi_full_src_register * reg,
 176    enum tgsi_opcode_type stype,
 177    unsigned swizzle)
 178 {
 179    struct lp_build_tgsi_aos_context * bld = lp_aos_context(bld_base);
 180    LLVMValueRef res = bld->immediates[reg->Register.Index];
 181    assert(res);
 182    return res;
 183 }
 184
 185 static LLVMValueRef
 186 emit_fetch_input(
 187    struct lp_build_tgsi_context * bld_base,
 188    const struct tgsi_full_src_register * reg,
 189    enum tgsi_opcode_type stype,
 190    unsigned swizzle)
 191 {
 192    struct lp_build_tgsi_aos_context * bld = lp_aos_context(bld_base);
 193    LLVMValueRef res = bld->inputs[reg->Register.Index];
 194    assert(!reg->Register.Indirect);
 195    assert(res);
 196    return res;
 197 }
 198
 199 static LLVMValueRef
 200 emit_fetch_temporary(
 201    struct lp_build_tgsi_context * bld_base,
 202    const struct tgsi_full_src_register * reg,
 203    enum tgsi_opcode_type stype,
 204    unsigned swizzle)
 205 {
 206    struct lp_build_tgsi_aos_context * bld = lp_aos_context(bld_base);
 207    LLVMBuilderRef builder = bld_base->base.gallivm->builder;
 208    LLVMValueRef temp_ptr = bld->temps[reg->Register.Index];
 209    LLVMValueRef res = LLVMBuildLoad(builder, temp_ptr, "");
 210    assert(!reg->Register.Indirect);
 211    if (!res)
 212       return bld->bld_base.base.undef;
 213
 214    return res;
 215 }
 216
 217 /**
 218  * Register store.
 219  */
 220 void
 221 lp_emit_store_aos(
 222    struct lp_build_tgsi_aos_context *bld,
 223    const struct tgsi_full_instruction *inst,
 224    unsigned index,
 225    LLVMValueRef value)
 226 {
 227    LLVMBuilderRef builder = bld->bld_base.base.gallivm->builder;
 228    const struct tgsi_full_dst_register *reg = &inst->Dst[index];
 229    LLVMValueRef mask = NULL;
 230    LLVMValueRef ptr;
 231
 232    /*
 233     * Saturate the value
 234     */
 235
 236    switch (inst->Instruction.Saturate) {
 237    case TGSI_SAT_NONE:
 238       break;
 239
 240    case TGSI_SAT_ZERO_ONE:
 241       value = lp_build_max(&bld->bld_base.base, value, bld->bld_base.base.zero);
 242       value = lp_build_min(&bld->bld_base.base, value, bld->bld_base.base.one);
 243       break;
 244
 245    case TGSI_SAT_MINUS_PLUS_ONE:
 246       value = lp_build_max(&bld->bld_base.base, value, lp_build_const_vec(bld->bld_base.base.gallivm, bld->bld_base.base.type, -1.0));
 247       value = lp_build_min(&bld->bld_base.base, value, bld->bld_base.base.one);
 248       break;
 249
 250    default:
 251       assert(0);
 252    }
 253
 254    /*
 255     * Translate the register file
 256     */
 257
 258    assert(!reg->Register.Indirect);
 259
 260    switch (reg->Register.File) {
 261    case TGSI_FILE_OUTPUT:
 262       ptr = bld->outputs[reg->Register.Index];
 263       break;
 264
 265    case TGSI_FILE_TEMPORARY:
 266       ptr = bld->temps[reg->Register.Index];
 267       break;
 268
 269    case TGSI_FILE_ADDRESS:
 270       ptr = bld->addr[reg->Indirect.Index];
 271       break;
 272
 273    case TGSI_FILE_PREDICATE:
 274       ptr = bld->preds[reg->Register.Index];
 275       break;
 276
 277    default:
 278       assert(0);
 279       return;
 280    }
 281
 282    if (!ptr)
 283       return;
 284    /*
 285     * Predicate
 286     */
 287
 288    if (inst->Instruction.Predicate) {
 289       LLVMValueRef pred;
 290
 291       assert(inst->Predicate.Index < LP_MAX_TGSI_PREDS);
 292
 293       pred = LLVMBuildLoad(builder,
 294                            bld->preds[inst->Predicate.Index], "");
 295
 296       /*
 297        * Convert the value to an integer mask.
 298        */
 299       pred = lp_build_compare(bld->bld_base.base.gallivm,
 300                                bld->bld_base.base.type,
 301                                PIPE_FUNC_NOTEQUAL,
 302                                pred,
 303                                bld->bld_base.base.zero);
 304
 305       if (inst->Predicate.Negate) {
 306          pred = LLVMBuildNot(builder, pred, "");
 307       }
 308
 309       pred = bld->bld_base.emit_swizzle(&bld->bld_base, pred,
 310                          inst->Predicate.SwizzleX,
 311                          inst->Predicate.SwizzleY,
 312                          inst->Predicate.SwizzleZ,
 313                          inst->Predicate.SwizzleW);
 314
 315       if (mask) {
 316          mask = LLVMBuildAnd(builder, mask, pred, "");
 317       } else {
 318          mask = pred;
 319       }
 320    }
 321
 322    /*
 323     * Writemask
 324     */
 325
 326    if (reg->Register.WriteMask != TGSI_WRITEMASK_XYZW) {
 327       LLVMValueRef writemask;
 328
 329       writemask = lp_build_const_mask_aos_swizzled(bld->bld_base.base.gallivm,
 330                                                    bld->bld_base.base.type,
 331                                                    reg->Register.WriteMask,
 332                                                    TGSI_NUM_CHANNELS,
 333                                                    bld->swizzles);
 334
 335       if (mask) {
 336          mask = LLVMBuildAnd(builder, mask, writemask, "");
 337       } else {
 338          mask = writemask;
 339       }
 340    }
 341
 342    if (mask) {
 343       LLVMValueRef orig_value;
 344
 345       orig_value = LLVMBuildLoad(builder, ptr, "");
 346       value = lp_build_select(&bld->bld_base.base,
 347                               mask, value, orig_value);
 348    }
 349
 350    LLVMBuildStore(builder, value, ptr);
 351 }
 352
 353
 354 /**
 355  * High-level instruction translators.
 356  */
 357
 358 static LLVMValueRef
 359 emit_tex(struct lp_build_tgsi_aos_context *bld,
 360          const struct tgsi_full_instruction *inst,
 361          enum lp_build_tex_modifier modifier)
 362 {
 363    unsigned target;
 364    unsigned unit;
 365    LLVMValueRef coords;
 366    struct lp_derivatives derivs;
 367
 368    if (!bld->sampler) {
 369       _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
 370       return bld->bld_base.base.undef;
 371    }
 372
 373    target = inst->Texture.Texture;
 374
 375    coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);
 376
 377    if (0 && modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
 378       lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
 379       lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
 380       unit = inst->Src[3].Register.Index;
 381    }  else {
 382 #if 0
 383       ddx = lp_build_ddx( &bld->bld_base.base, coords );
 384       ddy = lp_build_ddy( &bld->bld_base.base, coords );
 385 #else
 386       /* TODO */
 387       derivs.ddx_ddy[0] = bld->bld_base.base.one;
 388       derivs.ddx_ddy[1] = bld->bld_base.base.one;
 389 #endif
 390       unit = inst->Src[1].Register.Index;
 391    }
 392
 393    return bld->sampler->emit_fetch_texel(bld->sampler,
 394                                          &bld->bld_base.base,
 395                                          target, unit,
 396                                          coords, derivs,
 397                                          modifier);
 398 }
 399
 400
 401 void
 402 lp_emit_declaration_aos(
 403    struct lp_build_tgsi_aos_context *bld,
 404    const struct tgsi_full_declaration *decl)
 405 {
 406    struct gallivm_state *gallivm = bld->bld_base.base.gallivm;
 407    LLVMTypeRef vec_type = lp_build_vec_type(bld->bld_base.base.gallivm, bld->bld_base.base.type);
 408
 409    unsigned first = decl->Range.First;
 410    unsigned last = decl->Range.Last;
 411    unsigned idx;
 412
 413    for (idx = first; idx <= last; ++idx) {
 414       switch (decl->Declaration.File) {
 415       case TGSI_FILE_TEMPORARY:
 416          assert(idx < LP_MAX_TGSI_TEMPS);
 417          if (bld->indirect_files & (1 << TGSI_FILE_TEMPORARY)) {
 418             LLVMValueRef array_size = lp_build_const_int32(gallivm, last + 1);
 419             bld->temps_array = lp_build_array_alloca(bld->bld_base.base.gallivm,
 420                                                      vec_type, array_size, "");
 421          } else {
 422             bld->temps[idx] = lp_build_alloca(gallivm, vec_type, "");
 423          }
 424          break;
 425
 426       case TGSI_FILE_OUTPUT:
 427          bld->outputs[idx] = lp_build_alloca(gallivm, vec_type, "");
 428          break;
 429
 430       case TGSI_FILE_ADDRESS:
 431          assert(idx < LP_MAX_TGSI_ADDRS);
 432          bld->addr[idx] = lp_build_alloca(gallivm, vec_type, "");
 433          break;
 434
 435       case TGSI_FILE_PREDICATE:
 436          assert(idx < LP_MAX_TGSI_PREDS);
 437          bld->preds[idx] = lp_build_alloca(gallivm, vec_type, "");
 438          break;
 439
 440       default:
 441          /* don't need to declare other vars */
 442          break;
 443       }
 444    }
 445 }
 446
 447
 448 /**
 449  * Emit LLVM for one TGSI instruction.
 450  * \param return TRUE for success, FALSE otherwise
 451  */
 452 boolean
 453 lp_emit_instruction_aos(
 454    struct lp_build_tgsi_aos_context *bld,
 455    const struct tgsi_full_instruction *inst,
 456    const struct tgsi_opcode_info *info,
 457    int *pc)
 458 {
 459    LLVMValueRef src0, src1, src2;
 460    LLVMValueRef tmp0, tmp1;
 461    LLVMValueRef dst0 = NULL;
 462
 463    /*
 464     * Stores and write masks are handled in a general fashion after the long
 465     * instruction opcode switch statement.
 466     *
 467     * Although not stricitly necessary, we avoid generating instructions for
 468     * channels which won't be stored, in cases where's that easy. For some
 469     * complex instructions, like texture sampling, it is more convenient to
 470     * assume a full writemask and then let LLVM optimization passes eliminate
 471     * redundant code.
 472     */
 473
 474    (*pc)++;
 475
 476    assert(info->num_dst <= 1);
 477    if (info->num_dst) {
 478       dst0 = bld->bld_base.base.undef;
 479    }
 480
 481    switch (inst->Instruction.Opcode) {
 482    case TGSI_OPCODE_ARL:
 483       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 484       dst0 = lp_build_floor(&bld->bld_base.base, src0);
 485       break;
 486
 487    case TGSI_OPCODE_MOV:
 488       dst0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 489       break;
 490
 491    case TGSI_OPCODE_LIT:
 492       return FALSE;
 493
 494    case TGSI_OPCODE_RCP:
 495    /* TGSI_OPCODE_RECIP */
 496       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 497       dst0 = lp_build_rcp(&bld->bld_base.base, src0);
 498       break;
 499
 500    case TGSI_OPCODE_RSQ:
 501    /* TGSI_OPCODE_RECIPSQRT */
 502       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 503       tmp0 = lp_build_emit_llvm_unary(&bld->bld_base, TGSI_OPCODE_ABS, src0);
 504       dst0 = lp_build_rsqrt(&bld->bld_base.base, tmp0);
 505       break;
 506
 507    case TGSI_OPCODE_EXP:
 508       return FALSE;
 509
 510    case TGSI_OPCODE_LOG:
 511       return FALSE;
 512
 513    case TGSI_OPCODE_MUL:
 514       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 515       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 516       dst0 = lp_build_mul(&bld->bld_base.base, src0, src1);
 517       break;
 518
 519    case TGSI_OPCODE_ADD:
 520       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 521       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 522       dst0 = lp_build_add(&bld->bld_base.base, src0, src1);
 523       break;
 524
 525    case TGSI_OPCODE_DP3:
 526    /* TGSI_OPCODE_DOT3 */
 527       return FALSE;
 528
 529    case TGSI_OPCODE_DP4:
 530    /* TGSI_OPCODE_DOT4 */
 531       return FALSE;
 532
 533    case TGSI_OPCODE_DST:
 534       return FALSE;
 535
 536    case TGSI_OPCODE_MIN:
 537       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 538       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 539       dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
 540       break;
 541
 542    case TGSI_OPCODE_MAX:
 543       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 544       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 545       dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
 546       break;
 547
 548    case TGSI_OPCODE_SLT:
 549    /* TGSI_OPCODE_SETLT */
 550       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 551       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 552       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, src1);
 553       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 554       break;
 555
 556    case TGSI_OPCODE_SGE:
 557    /* TGSI_OPCODE_SETGE */
 558       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 559       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 560       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GEQUAL, src0, src1);
 561       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 562       break;
 563
 564    case TGSI_OPCODE_MAD:
 565    /* TGSI_OPCODE_MADD */
 566       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 567       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 568       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 569       tmp0 = lp_build_mul(&bld->bld_base.base, src0, src1);
 570       dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
 571       break;
 572
 573    case TGSI_OPCODE_SUB:
 574       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 575       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 576       dst0 = lp_build_sub(&bld->bld_base.base, src0, src1);
 577       break;
 578
 579    case TGSI_OPCODE_LRP:
 580       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 581       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 582       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 583       tmp0 = lp_build_sub(&bld->bld_base.base, src1, src2);
 584       tmp0 = lp_build_mul(&bld->bld_base.base, src0, tmp0);
 585       dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
 586       break;
 587
 588    case TGSI_OPCODE_CND:
 589       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 590       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 591       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 592       tmp1 = lp_build_const_vec(bld->bld_base.base.gallivm, bld->bld_base.base.type, 0.5);
 593       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src2, tmp1);
 594       dst0 = lp_build_select(&bld->bld_base.base, tmp0, src0, src1);
 595       break;
 596
 597    case TGSI_OPCODE_DP2A:
 598       return FALSE;
 599
 600    case TGSI_OPCODE_FRC:
 601       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 602       tmp0 = lp_build_floor(&bld->bld_base.base, src0);
 603       dst0 = lp_build_sub(&bld->bld_base.base, src0, tmp0);
 604       break;
 605
 606    case TGSI_OPCODE_CLAMP:
 607       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 608       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 609       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 610       tmp0 = lp_build_max(&bld->bld_base.base, src0, src1);
 611       dst0 = lp_build_min(&bld->bld_base.base, tmp0, src2);
 612       break;
 613
 614    case TGSI_OPCODE_FLR:
 615       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 616       dst0 = lp_build_floor(&bld->bld_base.base, src0);
 617       break;
 618
 619    case TGSI_OPCODE_ROUND:
 620       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 621       dst0 = lp_build_round(&bld->bld_base.base, src0);
 622       break;
 623
 624    case TGSI_OPCODE_EX2:
 625       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 626       tmp0 = lp_build_swizzle_scalar_aos(&bld->bld_base.base, src0, TGSI_SWIZZLE_X);
 627       dst0 = lp_build_exp2(&bld->bld_base.base, tmp0);
 628       break;
 629
 630    case TGSI_OPCODE_LG2:
 631       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 632       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 633       dst0 = lp_build_log2(&bld->bld_base.base, tmp0);
 634       break;
 635
 636    case TGSI_OPCODE_POW:
 637       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 638       src0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 639       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 640       src1 = swizzle_scalar_aos(bld, src1, TGSI_SWIZZLE_X);
 641       dst0 = lp_build_pow(&bld->bld_base.base, src0, src1);
 642       break;
 643
 644    case TGSI_OPCODE_XPD:
 645       return FALSE;
 646
 647    case TGSI_OPCODE_RCC:
 648       /* deprecated? */
 649       assert(0);
 650       return FALSE;
 651
 652    case TGSI_OPCODE_DPH:
 653       return FALSE;
 654
 655    case TGSI_OPCODE_COS:
 656       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 657       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 658       dst0 = lp_build_cos(&bld->bld_base.base, tmp0);
 659       break;
 660
 661    case TGSI_OPCODE_DDX:
 662       return FALSE;
 663
 664    case TGSI_OPCODE_DDY:
 665       return FALSE;
 666
 667    case TGSI_OPCODE_KILP:
 668       /* predicated kill */
 669       return FALSE;
 670
 671    case TGSI_OPCODE_KIL:
 672       /* conditional kill */
 673       return FALSE;
 674
 675    case TGSI_OPCODE_PK2H:
 676       return FALSE;
 677       break;
 678
 679    case TGSI_OPCODE_PK2US:
 680       return FALSE;
 681       break;
 682
 683    case TGSI_OPCODE_PK4B:
 684       return FALSE;
 685       break;
 686
 687    case TGSI_OPCODE_PK4UB:
 688       return FALSE;
 689
 690    case TGSI_OPCODE_RFL:
 691       return FALSE;
 692
 693    case TGSI_OPCODE_SEQ:
 694       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 695       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 696       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_EQUAL, src0, src1);
 697       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 698       break;
 699
 700    case TGSI_OPCODE_SFL:
 701       dst0 = bld->bld_base.base.zero;
 702       break;
 703
 704    case TGSI_OPCODE_SGT:
 705       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 706       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 707       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src0, src1);
 708       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 709       break;
 710
 711    case TGSI_OPCODE_SIN:
 712       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 713       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 714       dst0 = lp_build_sin(&bld->bld_base.base, tmp0);
 715       break;
 716
 717    case TGSI_OPCODE_SLE:
 718       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 719       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 720       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LEQUAL, src0, src1);
 721       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 722       break;
 723
 724    case TGSI_OPCODE_SNE:
 725       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 726       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 727       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_NOTEQUAL, src0, src1);
 728       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 729       break;
 730
 731    case TGSI_OPCODE_STR:
 732       dst0 = bld->bld_base.base.one;
 733       break;
 734
 735    case TGSI_OPCODE_TEX:
 736       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_NONE);
 737       break;
 738
 739    case TGSI_OPCODE_TXD:
 740       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV);
 741       break;
 742
 743    case TGSI_OPCODE_UP2H:
 744       /* deprecated */
 745       assert (0);
 746       return FALSE;
 747       break;
 748
 749    case TGSI_OPCODE_UP2US:
 750       /* deprecated */
 751       assert(0);
 752       return FALSE;
 753       break;
 754
 755    case TGSI_OPCODE_UP4B:
 756       /* deprecated */
 757       assert(0);
 758       return FALSE;
 759       break;
 760
 761    case TGSI_OPCODE_UP4UB:
 762       /* deprecated */
 763       assert(0);
 764       return FALSE;
 765       break;
 766
 767    case TGSI_OPCODE_X2D:
 768       /* deprecated? */
 769       assert(0);
 770       return FALSE;
 771       break;
 772
 773    case TGSI_OPCODE_ARA:
 774       /* deprecated */
 775       assert(0);
 776       return FALSE;
 777       break;
 778
 779    case TGSI_OPCODE_ARR:
 780       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 781       dst0 = lp_build_round(&bld->bld_base.base, src0);
 782       break;
 783
 784    case TGSI_OPCODE_BRA:
 785       /* deprecated */
 786       assert(0);
 787       return FALSE;
 788       break;
 789
 790    case TGSI_OPCODE_CAL:
 791       return FALSE;
 792
 793    case TGSI_OPCODE_RET:
 794       return FALSE;
 795
 796    case TGSI_OPCODE_END:
 797       *pc = -1;
 798       break;
 799
 800    case TGSI_OPCODE_SSG:
 801    /* TGSI_OPCODE_SGN */
 802       tmp0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 803       dst0 = lp_build_sgn(&bld->bld_base.base, tmp0);
 804       break;
 805
 806    case TGSI_OPCODE_CMP:
 807       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 808       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 809       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 810       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, bld->bld_base.base.zero);
 811       dst0 = lp_build_select(&bld->bld_base.base, tmp0, src1, src2);
 812       break;
 813
 814    case TGSI_OPCODE_SCS:
 815       return FALSE;
 816
 817    case TGSI_OPCODE_TXB:
 818       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_LOD_BIAS);
 819       break;
 820
 821    case TGSI_OPCODE_NRM:
 822       /* fall-through */
 823    case TGSI_OPCODE_NRM4:
 824       return FALSE;
 825
 826    case TGSI_OPCODE_DIV:
 827       /* deprecated */
 828       assert(0);
 829       return FALSE;
 830       break;
 831
 832    case TGSI_OPCODE_DP2:
 833       return FALSE;
 834
 835    case TGSI_OPCODE_TXL:
 836       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_LOD);
 837       break;
 838
 839    case TGSI_OPCODE_TXP:
 840       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_PROJECTED);
 841       break;
 842
 843    case TGSI_OPCODE_BRK:
 844       return FALSE;
 845
 846    case TGSI_OPCODE_IF:
 847       return FALSE;
 848
 849    case TGSI_OPCODE_BGNLOOP:
 850       return FALSE;
 851
 852    case TGSI_OPCODE_BGNSUB:
 853       return FALSE;
 854
 855    case TGSI_OPCODE_ELSE:
 856       return FALSE;
 857
 858    case TGSI_OPCODE_ENDIF:
 859       return FALSE;
 860
 861    case TGSI_OPCODE_ENDLOOP:
 862       return FALSE;
 863
 864    case TGSI_OPCODE_ENDSUB:
 865       return FALSE;
 866
 867    case TGSI_OPCODE_PUSHA:
 868       /* deprecated? */
 869       assert(0);
 870       return FALSE;
 871       break;
 872
 873    case TGSI_OPCODE_POPA:
 874       /* deprecated? */
 875       assert(0);
 876       return FALSE;
 877       break;
 878
 879    case TGSI_OPCODE_CEIL:
 880       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 881       dst0 = lp_build_ceil(&bld->bld_base.base, src0);
 882       break;
 883
 884    case TGSI_OPCODE_I2F:
 885       /* deprecated? */
 886       assert(0);
 887       return FALSE;
 888       break;
 889
 890    case TGSI_OPCODE_NOT:
 891       /* deprecated? */
 892       assert(0);
 893       return FALSE;
 894       break;
 895
 896    case TGSI_OPCODE_TRUNC:
 897       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 898       dst0 = lp_build_trunc(&bld->bld_base.base, src0);
 899       break;
 900
 901    case TGSI_OPCODE_SHL:
 902       /* deprecated? */
 903       assert(0);
 904       return FALSE;
 905       break;
 906
 907    case TGSI_OPCODE_ISHR:
 908       /* deprecated? */
 909       assert(0);
 910       return FALSE;
 911       break;
 912
 913    case TGSI_OPCODE_AND:
 914       /* deprecated? */
 915       assert(0);
 916       return FALSE;
 917       break;
 918
 919    case TGSI_OPCODE_OR:
 920       /* deprecated? */
 921       assert(0);
 922       return FALSE;
 923       break;
 924
 925    case TGSI_OPCODE_MOD:
 926       /* deprecated? */
 927       assert(0);
 928       return FALSE;
 929       break;
 930
 931    case TGSI_OPCODE_XOR:
 932       /* deprecated? */
 933       assert(0);
 934       return FALSE;
 935       break;
 936
 937    case TGSI_OPCODE_SAD:
 938       /* deprecated? */
 939       assert(0);
 940       return FALSE;
 941       break;
 942
 943    case TGSI_OPCODE_TXF:
 944       /* deprecated? */
 945       assert(0);
 946       return FALSE;
 947       break;
 948
 949    case TGSI_OPCODE_TXQ:
 950       /* deprecated? */
 951       assert(0);
 952       return FALSE;
 953       break;
 954
 955    case TGSI_OPCODE_CONT:
 956       return FALSE;
 957
 958    case TGSI_OPCODE_EMIT:
 959       return FALSE;
 960       break;
 961
 962    case TGSI_OPCODE_ENDPRIM:
 963       return FALSE;
 964       break;
 965
 966    case TGSI_OPCODE_NOP:
 967       break;
 968
 969    default:
 970       return FALSE;
 971    }
 972
 973    if (info->num_dst) {
 974       lp_emit_store_aos(bld, inst, 0, dst0);
 975    }
 976
 977    return TRUE;
 978 }
 979
 980
 981 void
 982 lp_build_tgsi_aos(struct gallivm_state *gallivm,
 983                   const struct tgsi_token *tokens,
 984                   struct lp_type type,
 985                   const unsigned char swizzles[4],
 986                   LLVMValueRef consts_ptr,
 987                   const LLVMValueRef *inputs,
 988                   LLVMValueRef *outputs,
 989                   struct lp_build_sampler_aos *sampler,
 990                   const struct tgsi_shader_info *info)
 991 {
 992    struct lp_build_tgsi_aos_context bld;
 993    struct tgsi_parse_context parse;
 994    uint num_immediates = 0;
 995    unsigned chan;
 996    int pc = 0;
 997
 998    /* Setup build context */
 999    memset(&bld, 0, sizeof bld);
1000    lp_build_context_init(&bld.bld_base.base, gallivm, type);
1001    lp_build_context_init(&bld.bld_base.uint_bld, gallivm, lp_uint_type(type));
1002    lp_build_context_init(&bld.bld_base.int_bld, gallivm, lp_int_type(type));
1003    lp_build_context_init(&bld.int_bld, gallivm, lp_int_type(type));
1004
1005    for (chan = 0; chan < 4; ++chan) {
1006       bld.swizzles[chan] = swizzles[chan];
1007       bld.inv_swizzles[swizzles[chan]] = chan;
1008    }
1009
1010    bld.inputs = inputs;
1011    bld.outputs = outputs;
1012    bld.consts_ptr = consts_ptr;
1013    bld.sampler = sampler;
1014    bld.indirect_files = info->indirect_files;
1015    bld.bld_base.emit_swizzle = swizzle_aos;
1016    bld.bld_base.info = info;
1017
1018    bld.bld_base.emit_fetch_funcs[TGSI_FILE_CONSTANT] = emit_fetch_constant;
1019    bld.bld_base.emit_fetch_funcs[TGSI_FILE_IMMEDIATE] = emit_fetch_immediate;
1020    bld.bld_base.emit_fetch_funcs[TGSI_FILE_INPUT] = emit_fetch_input;
1021    bld.bld_base.emit_fetch_funcs[TGSI_FILE_TEMPORARY] = emit_fetch_temporary;
1022
1023    /* Set opcode actions */
1024    lp_set_default_actions_cpu(&bld.bld_base);
1025
1026    if (!lp_bld_tgsi_list_init(&bld.bld_base)) {
1027       return;
1028    }
1029
1030    tgsi_parse_init(&parse, tokens);
1031
1032    while (!tgsi_parse_end_of_tokens(&parse)) {
1033       tgsi_parse_token(&parse);
1034
1035       switch(parse.FullToken.Token.Type) {
1036       case TGSI_TOKEN_TYPE_DECLARATION:
1037          /* Inputs already interpolated */
1038          lp_emit_declaration_aos(&bld, &parse.FullToken.FullDeclaration);
1039          break;
1040
1041       case TGSI_TOKEN_TYPE_INSTRUCTION:
1042          /* save expanded instruction */
1043          lp_bld_tgsi_add_instruction(&bld.bld_base,
1044                                      &parse.FullToken.FullInstruction);
1045          break;
1046
1047       case TGSI_TOKEN_TYPE_IMMEDIATE:
1048          /* simply copy the immediate values into the next immediates[] slot */
1049          {
1050             const uint size = parse.FullToken.FullImmediate.Immediate.NrTokens - 1;
1051             float imm[4];
1052             assert(size <= 4);
1053             assert(num_immediates < LP_MAX_TGSI_IMMEDIATES);
1054             for (chan = 0; chan < 4; ++chan) {
1055                imm[chan] = 0.0f;
1056             }
1057             for (chan = 0; chan < size; ++chan) {
1058                unsigned swizzle = bld.swizzles[chan];
1059                imm[swizzle] = parse.FullToken.FullImmediate.u[chan].Float;
1060             }
1061             bld.immediates[num_immediates] =
1062                      lp_build_const_aos(gallivm, type,
1063                                         imm[0], imm[1], imm[2], imm[3],
1064                                         NULL);
1065             num_immediates++;
1066          }
1067          break;
1068
1069       case TGSI_TOKEN_TYPE_PROPERTY:
1070          break;
1071
1072       default:
1073          assert(0);
1074       }
1075    }
1076
1077    while (pc != -1) {
1078       struct tgsi_full_instruction *instr = bld.bld_base.instructions + pc;
1079       const struct tgsi_opcode_info *opcode_info =
1080          tgsi_get_opcode_info(instr->Instruction.Opcode);
1081       if (!lp_emit_instruction_aos(&bld, instr, opcode_info, &pc))
1082          _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
1083                        opcode_info->mnemonic);
1084    }
1085
1086    if (0) {
1087       LLVMBasicBlockRef block = LLVMGetInsertBlock(gallivm->builder);
1088       LLVMValueRef function = LLVMGetBasicBlockParent(block);
1089       debug_printf("11111111111111111111111111111 \n");
1090       tgsi_dump(tokens, 0);
1091       lp_debug_dump_value(function);
1092       debug_printf("2222222222222222222222222222 \n");
1093    }
1094    tgsi_parse_free(&parse);
1095    FREE(bld.bld_base.instructions);
1096
1097    if (0) {
1098       LLVMModuleRef module = LLVMGetGlobalParent(
1099          LLVMGetBasicBlockParent(LLVMGetInsertBlock(gallivm->builder)));
1100       LLVMDumpModule(module);
1101    }
1102
1103 }
1104