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