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