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                                                    bld->swizzles);
 333
 334       if (mask) {
 335          mask = LLVMBuildAnd(builder, mask, writemask, "");
 336       } else {
 337          mask = writemask;
 338       }
 339    }
 340
 341    if (mask) {
 342       LLVMValueRef orig_value;
 343
 344       orig_value = LLVMBuildLoad(builder, ptr, "");
 345       value = lp_build_select(&bld->bld_base.base,
 346                               mask, value, orig_value);
 347    }
 348
 349    LLVMBuildStore(builder, value, ptr);
 350 }
 351
 352
 353 /**
 354  * High-level instruction translators.
 355  */
 356
 357 static LLVMValueRef
 358 emit_tex(struct lp_build_tgsi_aos_context *bld,
 359          const struct tgsi_full_instruction *inst,
 360          enum lp_build_tex_modifier modifier)
 361 {
 362    unsigned target;
 363    unsigned unit;
 364    LLVMValueRef coords;
 365    LLVMValueRef ddx;
 366    LLVMValueRef ddy;
 367    struct lp_derivatives derivs;
 368
 369    if (!bld->sampler) {
 370       _debug_printf("warning: found texture instruction but no sampler generator supplied\n");
 371       return bld->bld_base.base.undef;
 372    }
 373
 374    target = inst->Texture.Texture;
 375
 376    coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);
 377
 378    if (0 && modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
 379       ddx = lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
 380       ddy = lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
 381       unit = inst->Src[3].Register.Index;
 382    }  else {
 383 #if 0
 384       ddx = lp_build_ddx( &bld->bld_base.base, coords );
 385       ddy = lp_build_ddy( &bld->bld_base.base, coords );
 386 #else
 387       /* TODO */
 388       derivs.ddx_ddy[0] = bld->bld_base.base.one;
 389       derivs.ddx_ddy[1] = bld->bld_base.base.one;
 390 #endif
 391       unit = inst->Src[1].Register.Index;
 392    }
 393
 394    return bld->sampler->emit_fetch_texel(bld->sampler,
 395                                          &bld->bld_base.base,
 396                                          target, unit,
 397                                          coords, derivs,
 398                                          modifier);
 399 }
 400
 401
 402 void
 403 lp_emit_declaration_aos(
 404    struct lp_build_tgsi_aos_context *bld,
 405    const struct tgsi_full_declaration *decl)
 406 {
 407    struct gallivm_state *gallivm = bld->bld_base.base.gallivm;
 408    LLVMTypeRef vec_type = lp_build_vec_type(bld->bld_base.base.gallivm, bld->bld_base.base.type);
 409
 410    unsigned first = decl->Range.First;
 411    unsigned last = decl->Range.Last;
 412    unsigned idx;
 413
 414    for (idx = first; idx <= last; ++idx) {
 415       switch (decl->Declaration.File) {
 416       case TGSI_FILE_TEMPORARY:
 417          assert(idx < LP_MAX_TGSI_TEMPS);
 418          if (bld->indirect_files & (1 << TGSI_FILE_TEMPORARY)) {
 419             LLVMValueRef array_size = lp_build_const_int32(gallivm, last + 1);
 420             bld->temps_array = lp_build_array_alloca(bld->bld_base.base.gallivm,
 421                                                      vec_type, array_size, "");
 422          } else {
 423             bld->temps[idx] = lp_build_alloca(gallivm, vec_type, "");
 424          }
 425          break;
 426
 427       case TGSI_FILE_OUTPUT:
 428          bld->outputs[idx] = lp_build_alloca(gallivm, vec_type, "");
 429          break;
 430
 431       case TGSI_FILE_ADDRESS:
 432          assert(idx < LP_MAX_TGSI_ADDRS);
 433          bld->addr[idx] = lp_build_alloca(gallivm, vec_type, "");
 434          break;
 435
 436       case TGSI_FILE_PREDICATE:
 437          assert(idx < LP_MAX_TGSI_PREDS);
 438          bld->preds[idx] = lp_build_alloca(gallivm, vec_type, "");
 439          break;
 440
 441       default:
 442          /* don't need to declare other vars */
 443          break;
 444       }
 445    }
 446 }
 447
 448
 449 /**
 450  * Emit LLVM for one TGSI instruction.
 451  * \param return TRUE for success, FALSE otherwise
 452  */
 453 boolean
 454 lp_emit_instruction_aos(
 455    struct lp_build_tgsi_aos_context *bld,
 456    const struct tgsi_full_instruction *inst,
 457    const struct tgsi_opcode_info *info,
 458    int *pc)
 459 {
 460    LLVMValueRef src0, src1, src2;
 461    LLVMValueRef tmp0, tmp1;
 462    LLVMValueRef dst0 = NULL;
 463
 464    /*
 465     * Stores and write masks are handled in a general fashion after the long
 466     * instruction opcode switch statement.
 467     *
 468     * Although not stricitly necessary, we avoid generating instructions for
 469     * channels which won't be stored, in cases where's that easy. For some
 470     * complex instructions, like texture sampling, it is more convenient to
 471     * assume a full writemask and then let LLVM optimization passes eliminate
 472     * redundant code.
 473     */
 474
 475    (*pc)++;
 476
 477    assert(info->num_dst <= 1);
 478    if (info->num_dst) {
 479       dst0 = bld->bld_base.base.undef;
 480    }
 481
 482    switch (inst->Instruction.Opcode) {
 483    case TGSI_OPCODE_ARL:
 484       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 485       dst0 = lp_build_floor(&bld->bld_base.base, src0);
 486       break;
 487
 488    case TGSI_OPCODE_MOV:
 489       dst0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 490       break;
 491
 492    case TGSI_OPCODE_LIT:
 493       return FALSE;
 494
 495    case TGSI_OPCODE_RCP:
 496    /* TGSI_OPCODE_RECIP */
 497       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 498       dst0 = lp_build_rcp(&bld->bld_base.base, src0);
 499       break;
 500
 501    case TGSI_OPCODE_RSQ:
 502    /* TGSI_OPCODE_RECIPSQRT */
 503       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 504       tmp0 = lp_build_emit_llvm_unary(&bld->bld_base, TGSI_OPCODE_ABS, src0);
 505       dst0 = lp_build_rsqrt(&bld->bld_base.base, tmp0);
 506       break;
 507
 508    case TGSI_OPCODE_EXP:
 509       return FALSE;
 510
 511    case TGSI_OPCODE_LOG:
 512       return FALSE;
 513
 514    case TGSI_OPCODE_MUL:
 515       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 516       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 517       dst0 = lp_build_mul(&bld->bld_base.base, src0, src1);
 518       break;
 519
 520    case TGSI_OPCODE_ADD:
 521       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 522       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 523       dst0 = lp_build_add(&bld->bld_base.base, src0, src1);
 524       break;
 525
 526    case TGSI_OPCODE_DP3:
 527    /* TGSI_OPCODE_DOT3 */
 528       return FALSE;
 529
 530    case TGSI_OPCODE_DP4:
 531    /* TGSI_OPCODE_DOT4 */
 532       return FALSE;
 533
 534    case TGSI_OPCODE_DST:
 535       return FALSE;
 536
 537    case TGSI_OPCODE_MIN:
 538       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 539       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 540       dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
 541       break;
 542
 543    case TGSI_OPCODE_MAX:
 544       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 545       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 546       dst0 = lp_build_max(&bld->bld_base.base, src0, src1);
 547       break;
 548
 549    case TGSI_OPCODE_SLT:
 550    /* TGSI_OPCODE_SETLT */
 551       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 552       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 553       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, src1);
 554       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 555       break;
 556
 557    case TGSI_OPCODE_SGE:
 558    /* TGSI_OPCODE_SETGE */
 559       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 560       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 561       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GEQUAL, src0, src1);
 562       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 563       break;
 564
 565    case TGSI_OPCODE_MAD:
 566    /* TGSI_OPCODE_MADD */
 567       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 568       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 569       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 570       tmp0 = lp_build_mul(&bld->bld_base.base, src0, src1);
 571       dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
 572       break;
 573
 574    case TGSI_OPCODE_SUB:
 575       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 576       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 577       dst0 = lp_build_sub(&bld->bld_base.base, src0, src1);
 578       break;
 579
 580    case TGSI_OPCODE_LRP:
 581       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 582       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 583       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 584       tmp0 = lp_build_sub(&bld->bld_base.base, src1, src2);
 585       tmp0 = lp_build_mul(&bld->bld_base.base, src0, tmp0);
 586       dst0 = lp_build_add(&bld->bld_base.base, tmp0, src2);
 587       break;
 588
 589    case TGSI_OPCODE_CND:
 590       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 591       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 592       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 593       tmp1 = lp_build_const_vec(bld->bld_base.base.gallivm, bld->bld_base.base.type, 0.5);
 594       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src2, tmp1);
 595       dst0 = lp_build_select(&bld->bld_base.base, tmp0, src0, src1);
 596       break;
 597
 598    case TGSI_OPCODE_DP2A:
 599       return FALSE;
 600
 601    case TGSI_OPCODE_FRC:
 602       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 603       tmp0 = lp_build_floor(&bld->bld_base.base, src0);
 604       dst0 = lp_build_sub(&bld->bld_base.base, src0, tmp0);
 605       break;
 606
 607    case TGSI_OPCODE_CLAMP:
 608       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 609       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 610       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 611       tmp0 = lp_build_max(&bld->bld_base.base, src0, src1);
 612       dst0 = lp_build_min(&bld->bld_base.base, tmp0, src2);
 613       break;
 614
 615    case TGSI_OPCODE_FLR:
 616       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 617       dst0 = lp_build_floor(&bld->bld_base.base, src0);
 618       break;
 619
 620    case TGSI_OPCODE_ROUND:
 621       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 622       dst0 = lp_build_round(&bld->bld_base.base, src0);
 623       break;
 624
 625    case TGSI_OPCODE_EX2:
 626       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 627       tmp0 = lp_build_swizzle_scalar_aos(&bld->bld_base.base, src0, TGSI_SWIZZLE_X);
 628       dst0 = lp_build_exp2(&bld->bld_base.base, tmp0);
 629       break;
 630
 631    case TGSI_OPCODE_LG2:
 632       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 633       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 634       dst0 = lp_build_log2(&bld->bld_base.base, tmp0);
 635       break;
 636
 637    case TGSI_OPCODE_POW:
 638       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 639       src0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 640       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 641       src1 = swizzle_scalar_aos(bld, src1, TGSI_SWIZZLE_X);
 642       dst0 = lp_build_pow(&bld->bld_base.base, src0, src1);
 643       break;
 644
 645    case TGSI_OPCODE_XPD:
 646       return FALSE;
 647
 648    case TGSI_OPCODE_RCC:
 649       /* deprecated? */
 650       assert(0);
 651       return FALSE;
 652
 653    case TGSI_OPCODE_DPH:
 654       return FALSE;
 655
 656    case TGSI_OPCODE_COS:
 657       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 658       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 659       dst0 = lp_build_cos(&bld->bld_base.base, tmp0);
 660       break;
 661
 662    case TGSI_OPCODE_DDX:
 663       return FALSE;
 664
 665    case TGSI_OPCODE_DDY:
 666       return FALSE;
 667
 668    case TGSI_OPCODE_KILP:
 669       /* predicated kill */
 670       return FALSE;
 671
 672    case TGSI_OPCODE_KIL:
 673       /* conditional kill */
 674       return FALSE;
 675
 676    case TGSI_OPCODE_PK2H:
 677       return FALSE;
 678       break;
 679
 680    case TGSI_OPCODE_PK2US:
 681       return FALSE;
 682       break;
 683
 684    case TGSI_OPCODE_PK4B:
 685       return FALSE;
 686       break;
 687
 688    case TGSI_OPCODE_PK4UB:
 689       return FALSE;
 690
 691    case TGSI_OPCODE_RFL:
 692       return FALSE;
 693
 694    case TGSI_OPCODE_SEQ:
 695       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 696       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 697       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_EQUAL, src0, src1);
 698       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 699       break;
 700
 701    case TGSI_OPCODE_SFL:
 702       dst0 = bld->bld_base.base.zero;
 703       break;
 704
 705    case TGSI_OPCODE_SGT:
 706       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 707       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 708       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_GREATER, src0, src1);
 709       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 710       break;
 711
 712    case TGSI_OPCODE_SIN:
 713       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 714       tmp0 = swizzle_scalar_aos(bld, src0, TGSI_SWIZZLE_X);
 715       dst0 = lp_build_sin(&bld->bld_base.base, tmp0);
 716       break;
 717
 718    case TGSI_OPCODE_SLE:
 719       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 720       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 721       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LEQUAL, src0, src1);
 722       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 723       break;
 724
 725    case TGSI_OPCODE_SNE:
 726       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 727       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 728       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_NOTEQUAL, src0, src1);
 729       dst0 = lp_build_select(&bld->bld_base.base, tmp0, bld->bld_base.base.one, bld->bld_base.base.zero);
 730       break;
 731
 732    case TGSI_OPCODE_STR:
 733       dst0 = bld->bld_base.base.one;
 734       break;
 735
 736    case TGSI_OPCODE_TEX:
 737       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_NONE);
 738       break;
 739
 740    case TGSI_OPCODE_TXD:
 741       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV);
 742       break;
 743
 744    case TGSI_OPCODE_UP2H:
 745       /* deprecated */
 746       assert (0);
 747       return FALSE;
 748       break;
 749
 750    case TGSI_OPCODE_UP2US:
 751       /* deprecated */
 752       assert(0);
 753       return FALSE;
 754       break;
 755
 756    case TGSI_OPCODE_UP4B:
 757       /* deprecated */
 758       assert(0);
 759       return FALSE;
 760       break;
 761
 762    case TGSI_OPCODE_UP4UB:
 763       /* deprecated */
 764       assert(0);
 765       return FALSE;
 766       break;
 767
 768    case TGSI_OPCODE_X2D:
 769       /* deprecated? */
 770       assert(0);
 771       return FALSE;
 772       break;
 773
 774    case TGSI_OPCODE_ARA:
 775       /* deprecated */
 776       assert(0);
 777       return FALSE;
 778       break;
 779
 780    case TGSI_OPCODE_ARR:
 781       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 782       dst0 = lp_build_round(&bld->bld_base.base, src0);
 783       break;
 784
 785    case TGSI_OPCODE_BRA:
 786       /* deprecated */
 787       assert(0);
 788       return FALSE;
 789       break;
 790
 791    case TGSI_OPCODE_CAL:
 792       return FALSE;
 793
 794    case TGSI_OPCODE_RET:
 795       return FALSE;
 796
 797    case TGSI_OPCODE_END:
 798       *pc = -1;
 799       break;
 800
 801    case TGSI_OPCODE_SSG:
 802    /* TGSI_OPCODE_SGN */
 803       tmp0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 804       dst0 = lp_build_sgn(&bld->bld_base.base, tmp0);
 805       break;
 806
 807    case TGSI_OPCODE_CMP:
 808       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 809       src1 = lp_build_emit_fetch(&bld->bld_base, inst, 1, LP_CHAN_ALL);
 810       src2 = lp_build_emit_fetch(&bld->bld_base, inst, 2, LP_CHAN_ALL);
 811       tmp0 = lp_build_cmp(&bld->bld_base.base, PIPE_FUNC_LESS, src0, bld->bld_base.base.zero);
 812       dst0 = lp_build_select(&bld->bld_base.base, tmp0, src1, src2);
 813       break;
 814
 815    case TGSI_OPCODE_SCS:
 816       return FALSE;
 817
 818    case TGSI_OPCODE_TXB:
 819       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_LOD_BIAS);
 820       break;
 821
 822    case TGSI_OPCODE_NRM:
 823       /* fall-through */
 824    case TGSI_OPCODE_NRM4:
 825       return FALSE;
 826
 827    case TGSI_OPCODE_DIV:
 828       /* deprecated */
 829       assert(0);
 830       return FALSE;
 831       break;
 832
 833    case TGSI_OPCODE_DP2:
 834       return FALSE;
 835
 836    case TGSI_OPCODE_TXL:
 837       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_EXPLICIT_LOD);
 838       break;
 839
 840    case TGSI_OPCODE_TXP:
 841       dst0 = emit_tex(bld, inst, LP_BLD_TEX_MODIFIER_PROJECTED);
 842       break;
 843
 844    case TGSI_OPCODE_BRK:
 845       return FALSE;
 846
 847    case TGSI_OPCODE_IF:
 848       return FALSE;
 849
 850    case TGSI_OPCODE_BGNLOOP:
 851       return FALSE;
 852
 853    case TGSI_OPCODE_BGNSUB:
 854       return FALSE;
 855
 856    case TGSI_OPCODE_ELSE:
 857       return FALSE;
 858
 859    case TGSI_OPCODE_ENDIF:
 860       return FALSE;
 861
 862    case TGSI_OPCODE_ENDLOOP:
 863       return FALSE;
 864
 865    case TGSI_OPCODE_ENDSUB:
 866       return FALSE;
 867
 868    case TGSI_OPCODE_PUSHA:
 869       /* deprecated? */
 870       assert(0);
 871       return FALSE;
 872       break;
 873
 874    case TGSI_OPCODE_POPA:
 875       /* deprecated? */
 876       assert(0);
 877       return FALSE;
 878       break;
 879
 880    case TGSI_OPCODE_CEIL:
 881       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 882       dst0 = lp_build_ceil(&bld->bld_base.base, src0);
 883       break;
 884
 885    case TGSI_OPCODE_I2F:
 886       /* deprecated? */
 887       assert(0);
 888       return FALSE;
 889       break;
 890
 891    case TGSI_OPCODE_NOT:
 892       /* deprecated? */
 893       assert(0);
 894       return FALSE;
 895       break;
 896
 897    case TGSI_OPCODE_TRUNC:
 898       src0 = lp_build_emit_fetch(&bld->bld_base, inst, 0, LP_CHAN_ALL);
 899       dst0 = lp_build_trunc(&bld->bld_base.base, src0);
 900       break;
 901
 902    case TGSI_OPCODE_SHL:
 903       /* deprecated? */
 904       assert(0);
 905       return FALSE;
 906       break;
 907
 908    case TGSI_OPCODE_ISHR:
 909       /* deprecated? */
 910       assert(0);
 911       return FALSE;
 912       break;
 913
 914    case TGSI_OPCODE_AND:
 915       /* deprecated? */
 916       assert(0);
 917       return FALSE;
 918       break;
 919
 920    case TGSI_OPCODE_OR:
 921       /* deprecated? */
 922       assert(0);
 923       return FALSE;
 924       break;
 925
 926    case TGSI_OPCODE_MOD:
 927       /* deprecated? */
 928       assert(0);
 929       return FALSE;
 930       break;
 931
 932    case TGSI_OPCODE_XOR:
 933       /* deprecated? */
 934       assert(0);
 935       return FALSE;
 936       break;
 937
 938    case TGSI_OPCODE_SAD:
 939       /* deprecated? */
 940       assert(0);
 941       return FALSE;
 942       break;
 943
 944    case TGSI_OPCODE_TXF:
 945       /* deprecated? */
 946       assert(0);
 947       return FALSE;
 948       break;
 949
 950    case TGSI_OPCODE_TXQ:
 951       /* deprecated? */
 952       assert(0);
 953       return FALSE;
 954       break;
 955
 956    case TGSI_OPCODE_CONT:
 957       return FALSE;
 958
 959    case TGSI_OPCODE_EMIT:
 960       return FALSE;
 961       break;
 962
 963    case TGSI_OPCODE_ENDPRIM:
 964       return FALSE;
 965       break;
 966
 967    case TGSI_OPCODE_NOP:
 968       break;
 969
 970    default:
 971       return FALSE;
 972    }
 973
 974    if (info->num_dst) {
 975       lp_emit_store_aos(bld, inst, 0, dst0);
 976    }
 977
 978    return TRUE;
 979 }
 980
 981
 982 void
 983 lp_build_tgsi_aos(struct gallivm_state *gallivm,
 984                   const struct tgsi_token *tokens,
 985                   struct lp_type type,
 986                   const unsigned char swizzles[4],
 987                   LLVMValueRef consts_ptr,
 988                   const LLVMValueRef *inputs,
 989                   LLVMValueRef *outputs,
 990                   struct lp_build_sampler_aos *sampler,
 991                   const struct tgsi_shader_info *info)
 992 {
 993    struct lp_build_tgsi_aos_context bld;
 994    struct tgsi_parse_context parse;
 995    uint num_immediates = 0;
 996    unsigned chan;
 997    int pc = 0;
 998
 999    /* Setup build context */
1000    memset(&bld, 0, sizeof bld);
1001    lp_build_context_init(&bld.bld_base.base, gallivm, type);
1002    lp_build_context_init(&bld.bld_base.uint_bld, gallivm, lp_uint_type(type));
1003    lp_build_context_init(&bld.bld_base.int_bld, gallivm, lp_int_type(type));
1004    lp_build_context_init(&bld.int_bld, gallivm, lp_int_type(type));
1005
1006    for (chan = 0; chan < 4; ++chan) {
1007       bld.swizzles[chan] = swizzles[chan];
1008       bld.inv_swizzles[swizzles[chan]] = chan;
1009    }
1010
1011    bld.inputs = inputs;
1012    bld.outputs = outputs;
1013    bld.consts_ptr = consts_ptr;
1014    bld.sampler = sampler;
1015    bld.indirect_files = info->indirect_files;
1016    bld.bld_base.emit_swizzle = swizzle_aos;
1017    bld.bld_base.info = info;
1018
1019    bld.bld_base.emit_fetch_funcs[TGSI_FILE_CONSTANT] = emit_fetch_constant;
1020    bld.bld_base.emit_fetch_funcs[TGSI_FILE_IMMEDIATE] = emit_fetch_immediate;
1021    bld.bld_base.emit_fetch_funcs[TGSI_FILE_INPUT] = emit_fetch_input;
1022    bld.bld_base.emit_fetch_funcs[TGSI_FILE_TEMPORARY] = emit_fetch_temporary;
1023
1024    /* Set opcode actions */
1025    lp_set_default_actions_cpu(&bld.bld_base);
1026
1027    if (!lp_bld_tgsi_list_init(&bld.bld_base)) {
1028       return;
1029    }
1030
1031    tgsi_parse_init(&parse, tokens);
1032
1033    while (!tgsi_parse_end_of_tokens(&parse)) {
1034       tgsi_parse_token(&parse);
1035
1036       switch(parse.FullToken.Token.Type) {
1037       case TGSI_TOKEN_TYPE_DECLARATION:
1038          /* Inputs already interpolated */
1039          lp_emit_declaration_aos(&bld, &parse.FullToken.FullDeclaration);
1040          break;
1041
1042       case TGSI_TOKEN_TYPE_INSTRUCTION:
1043          /* save expanded instruction */
1044          lp_bld_tgsi_add_instruction(&bld.bld_base,
1045                                      &parse.FullToken.FullInstruction);
1046          break;
1047
1048       case TGSI_TOKEN_TYPE_IMMEDIATE:
1049          /* simply copy the immediate values into the next immediates[] slot */
1050          {
1051             const uint size = parse.FullToken.FullImmediate.Immediate.NrTokens - 1;
1052             float imm[4];
1053             assert(size <= 4);
1054             assert(num_immediates < LP_MAX_TGSI_IMMEDIATES);
1055             for (chan = 0; chan < 4; ++chan) {
1056                imm[chan] = 0.0f;
1057             }
1058             for (chan = 0; chan < size; ++chan) {
1059                unsigned swizzle = bld.swizzles[chan];
1060                imm[swizzle] = parse.FullToken.FullImmediate.u[chan].Float;
1061             }
1062             bld.immediates[num_immediates] =
1063                      lp_build_const_aos(gallivm, type,
1064                                         imm[0], imm[1], imm[2], imm[3],
1065                                         NULL);
1066             num_immediates++;
1067          }
1068          break;
1069
1070       case TGSI_TOKEN_TYPE_PROPERTY:
1071          break;
1072
1073       default:
1074          assert(0);
1075       }
1076    }
1077
1078    while (pc != -1) {
1079       struct tgsi_full_instruction *instr = bld.bld_base.instructions + pc;
1080       const struct tgsi_opcode_info *opcode_info =
1081          tgsi_get_opcode_info(instr->Instruction.Opcode);
1082       if (!lp_emit_instruction_aos(&bld, instr, opcode_info, &pc))
1083          _debug_printf("warning: failed to translate tgsi opcode %s to LLVM\n",
1084                        opcode_info->mnemonic);
1085    }
1086
1087    if (0) {
1088       LLVMBasicBlockRef block = LLVMGetInsertBlock(gallivm->builder);
1089       LLVMValueRef function = LLVMGetBasicBlockParent(block);
1090       debug_printf("11111111111111111111111111111 \n");
1091       tgsi_dump(tokens, 0);
1092       lp_debug_dump_value(function);
1093       debug_printf("2222222222222222222222222222 \n");
1094    }
1095    tgsi_parse_free(&parse);
1096    FREE(bld.bld_base.instructions);
1097
1098    if (0) {
1099       LLVMModuleRef module = LLVMGetGlobalParent(
1100          LLVMGetBasicBlockParent(LLVMGetInsertBlock(gallivm->builder)));
1101       LLVMDumpModule(module);
1102    }
1103
1104 }
1105