src/compiler/glsl/standalone.cpp

   1 /*
   2  * Copyright © 2008, 2009 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23 #include <getopt.h>
  24
  25 /** @file standalone.cpp
  26  *
  27  * Standalone compiler helper lib.  Used by standalone glsl_compiler and
  28  * also available to drivers to implement their own standalone compiler
  29  * with driver backend.
  30  */
  31
  32 #include "ast.h"
  33 #include "glsl_parser_extras.h"
  34 #include "ir_optimization.h"
  35 #include "program.h"
  36 #include "loop_analysis.h"
  37 #include "standalone_scaffolding.h"
  38 #include "standalone.h"
  39 #include "string_to_uint_map.h"
  40 #include "util/set.h"
  41 #include "linker.h"
  42 #include "glsl_parser_extras.h"
  43 #include "ir_builder_print_visitor.h"
  44 #include "builtin_functions.h"
  45 #include "opt_add_neg_to_sub.h"
  46 #include "main/mtypes.h"
  47
  48 class dead_variable_visitor : public ir_hierarchical_visitor {
  49 public:
  50    dead_variable_visitor()
  51    {
  52       variables = _mesa_pointer_set_create(NULL);
  53    }
  54
  55    virtual ~dead_variable_visitor()
  56    {
  57       _mesa_set_destroy(variables, NULL);
  58    }
  59
  60    virtual ir_visitor_status visit(ir_variable *ir)
  61    {
  62       /* If the variable is auto or temp, add it to the set of variables that
  63        * are candidates for removal.
  64        */
  65       if (ir->data.mode != ir_var_auto && ir->data.mode != ir_var_temporary)
  66          return visit_continue;
  67
  68       _mesa_set_add(variables, ir);
  69
  70       return visit_continue;
  71    }
  72
  73    virtual ir_visitor_status visit(ir_dereference_variable *ir)
  74    {
  75       struct set_entry *entry = _mesa_set_search(variables, ir->var);
  76
  77       /* If a variable is dereferenced at all, remove it from the set of
  78        * variables that are candidates for removal.
  79        */
  80       if (entry != NULL)
  81          _mesa_set_remove(variables, entry);
  82
  83       return visit_continue;
  84    }
  85
  86    void remove_dead_variables()
  87    {
  88       set_foreach(variables, entry) {
  89          ir_variable *ir = (ir_variable *) entry->key;
  90
  91          assert(ir->ir_type == ir_type_variable);
  92          ir->remove();
  93       }
  94    }
  95
  96 private:
  97    set *variables;
  98 };
  99
 100 static void
 101 init_gl_program(struct gl_program *prog, bool is_arb_asm)
 102 {
 103    prog->RefCount = 1;
 104    prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB;
 105    prog->is_arb_asm = is_arb_asm;
 106 }
 107
 108 static struct gl_program *
 109 new_program(UNUSED struct gl_context *ctx, GLenum target,
 110             UNUSED GLuint id, bool is_arb_asm)
 111 {
 112    switch (target) {
 113    case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
 114    case GL_GEOMETRY_PROGRAM_NV:
 115    case GL_TESS_CONTROL_PROGRAM_NV:
 116    case GL_TESS_EVALUATION_PROGRAM_NV:
 117    case GL_FRAGMENT_PROGRAM_ARB:
 118    case GL_COMPUTE_PROGRAM_NV: {
 119       struct gl_program *prog = rzalloc(NULL, struct gl_program);
 120       init_gl_program(prog, is_arb_asm);
 121       return prog;
 122    }
 123    default:
 124       printf("bad target in new_program\n");
 125       return NULL;
 126    }
 127 }
 128
 129 static const struct standalone_options *options;
 130
 131 static void
 132 initialize_context(struct gl_context *ctx, gl_api api)
 133 {
 134    initialize_context_to_defaults(ctx, api);
 135
 136    /* The standalone compiler needs to claim support for almost
 137     * everything in order to compile the built-in functions.
 138     */
 139    ctx->Const.GLSLVersion = options->glsl_version;
 140    ctx->Extensions.ARB_ES3_compatibility = true;
 141    ctx->Const.MaxComputeWorkGroupCount[0] = 65535;
 142    ctx->Const.MaxComputeWorkGroupCount[1] = 65535;
 143    ctx->Const.MaxComputeWorkGroupCount[2] = 65535;
 144    ctx->Const.MaxComputeWorkGroupSize[0] = 1024;
 145    ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
 146    ctx->Const.MaxComputeWorkGroupSize[2] = 64;
 147    ctx->Const.MaxComputeWorkGroupInvocations = 1024;
 148    ctx->Const.MaxComputeSharedMemorySize = 32768;
 149    ctx->Const.MaxComputeVariableGroupSize[0] = 512;
 150    ctx->Const.MaxComputeVariableGroupSize[1] = 512;
 151    ctx->Const.MaxComputeVariableGroupSize[2] = 64;
 152    ctx->Const.MaxComputeVariableGroupInvocations = 512;
 153    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 16;
 154    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents = 1024;
 155    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxCombinedUniformComponents = 1024;
 156    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxInputComponents = 0; /* not used */
 157    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxOutputComponents = 0; /* not used */
 158    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers = 8;
 159    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicCounters = 8;
 160    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxImageUniforms = 8;
 161    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformBlocks = 12;
 162
 163    switch (ctx->Const.GLSLVersion) {
 164    case 100:
 165       ctx->Const.MaxClipPlanes = 0;
 166       ctx->Const.MaxCombinedTextureImageUnits = 8;
 167       ctx->Const.MaxDrawBuffers = 2;
 168       ctx->Const.MinProgramTexelOffset = 0;
 169       ctx->Const.MaxProgramTexelOffset = 0;
 170       ctx->Const.MaxLights = 0;
 171       ctx->Const.MaxTextureCoordUnits = 0;
 172       ctx->Const.MaxTextureUnits = 8;
 173
 174       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 8;
 175       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 176       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 128 * 4;
 177       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 128 * 4;
 178       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 179       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 180
 181       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
 182          ctx->Const.MaxCombinedTextureImageUnits;
 183       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 16 * 4;
 184       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 16 * 4;
 185       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 186          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 187       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 188
 189       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 190       break;
 191    case 110:
 192    case 120:
 193       ctx->Const.MaxClipPlanes = 6;
 194       ctx->Const.MaxCombinedTextureImageUnits = 2;
 195       ctx->Const.MaxDrawBuffers = 1;
 196       ctx->Const.MinProgramTexelOffset = 0;
 197       ctx->Const.MaxProgramTexelOffset = 0;
 198       ctx->Const.MaxLights = 8;
 199       ctx->Const.MaxTextureCoordUnits = 2;
 200       ctx->Const.MaxTextureUnits = 2;
 201
 202       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 203       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 204       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 512;
 205       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 512;
 206       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 207       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 208
 209       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
 210          ctx->Const.MaxCombinedTextureImageUnits;
 211       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 64;
 212       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 64;
 213       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 214          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 215       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 216
 217       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 218       break;
 219    case 130:
 220    case 140:
 221       ctx->Const.MaxClipPlanes = 8;
 222       ctx->Const.MaxCombinedTextureImageUnits = 16;
 223       ctx->Const.MaxDrawBuffers = 8;
 224       ctx->Const.MinProgramTexelOffset = -8;
 225       ctx->Const.MaxProgramTexelOffset = 7;
 226       ctx->Const.MaxLights = 8;
 227       ctx->Const.MaxTextureCoordUnits = 8;
 228       ctx->Const.MaxTextureUnits = 2;
 229       ctx->Const.MaxUniformBufferBindings = 84;
 230       ctx->Const.MaxVertexStreams = 4;
 231       ctx->Const.MaxTransformFeedbackBuffers = 4;
 232
 233       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 234       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 235       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 236       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 237       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 238       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
 239
 240       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 241       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
 242       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 1024;
 243       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 244          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 245       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 246
 247       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 248       break;
 249    case 150:
 250    case 330:
 251    case 400:
 252    case 410:
 253    case 420:
 254    case 430:
 255    case 440:
 256    case 450:
 257    case 460:
 258       ctx->Const.MaxClipPlanes = 8;
 259       ctx->Const.MaxDrawBuffers = 8;
 260       ctx->Const.MinProgramTexelOffset = -8;
 261       ctx->Const.MaxProgramTexelOffset = 7;
 262       ctx->Const.MaxLights = 8;
 263       ctx->Const.MaxTextureCoordUnits = 8;
 264       ctx->Const.MaxTextureUnits = 2;
 265       ctx->Const.MaxUniformBufferBindings = 84;
 266       ctx->Const.MaxVertexStreams = 4;
 267       ctx->Const.MaxTransformFeedbackBuffers = 4;
 268
 269       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 270       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 271       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 272       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 273       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 274       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
 275
 276       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = 16;
 277       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxUniformComponents = 1024;
 278       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxCombinedUniformComponents = 1024;
 279       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents =
 280          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 281       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents = 128;
 282
 283       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 284       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
 285       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 1024;
 286       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 287          ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents;
 288       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 289
 290       ctx->Const.MaxCombinedTextureImageUnits =
 291          ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits
 292          + ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits
 293          + ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits;
 294
 295       ctx->Const.MaxGeometryOutputVertices = 256;
 296       ctx->Const.MaxGeometryTotalOutputComponents = 1024;
 297
 298       ctx->Const.MaxVarying = 60 / 4;
 299       break;
 300    case 300:
 301       ctx->Const.MaxClipPlanes = 8;
 302       ctx->Const.MaxCombinedTextureImageUnits = 32;
 303       ctx->Const.MaxDrawBuffers = 4;
 304       ctx->Const.MinProgramTexelOffset = -8;
 305       ctx->Const.MaxProgramTexelOffset = 7;
 306       ctx->Const.MaxLights = 0;
 307       ctx->Const.MaxTextureCoordUnits = 0;
 308       ctx->Const.MaxTextureUnits = 0;
 309       ctx->Const.MaxUniformBufferBindings = 84;
 310       ctx->Const.MaxVertexStreams = 4;
 311       ctx->Const.MaxTransformFeedbackBuffers = 4;
 312
 313       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 314       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 315       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 316       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 317       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 318       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 16 * 4;
 319
 320       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 321       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 224;
 322       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 224;
 323       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 15 * 4;
 324       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 325
 326       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents / 4;
 327       break;
 328    }
 329
 330    ctx->Const.GenerateTemporaryNames = true;
 331    ctx->Const.MaxPatchVertices = 32;
 332
 333    /* GL_ARB_explicit_uniform_location, GL_MAX_UNIFORM_LOCATIONS */
 334    ctx->Const.MaxUserAssignableUniformLocations =
 335       4 * MESA_SHADER_STAGES * MAX_UNIFORMS;
 336
 337    ctx->Driver.NewProgram = new_program;
 338 }
 339
 340 /* Returned string will have 'ctx' as its ralloc owner. */
 341 static char *
 342 load_text_file(void *ctx, const char *file_name)
 343 {
 344    char *text = NULL;
 345    size_t size;
 346    size_t total_read = 0;
 347    FILE *fp = fopen(file_name, "rb");
 348
 349    if (!fp) {
 350       return NULL;
 351    }
 352
 353    fseek(fp, 0L, SEEK_END);
 354    size = ftell(fp);
 355    fseek(fp, 0L, SEEK_SET);
 356
 357    text = (char *) ralloc_size(ctx, size + 1);
 358    if (text != NULL) {
 359       do {
 360          size_t bytes = fread(text + total_read,
 361                1, size - total_read, fp);
 362          if (bytes < size - total_read) {
 363             free(text);
 364             text = NULL;
 365             goto error;
 366          }
 367
 368          if (bytes == 0) {
 369             break;
 370          }
 371
 372          total_read += bytes;
 373       } while (total_read < size);
 374
 375       text[total_read] = '\0';
 376       error:;
 377    }
 378
 379    fclose(fp);
 380
 381    return text;
 382 }
 383
 384 static void
 385 compile_shader(struct gl_context *ctx, struct gl_shader *shader)
 386 {
 387    struct _mesa_glsl_parse_state *state =
 388       new(shader) _mesa_glsl_parse_state(ctx, shader->Stage, shader);
 389
 390    _mesa_glsl_compile_shader(ctx, shader, options->dump_ast,
 391                              options->dump_hir, true);
 392
 393    /* Print out the resulting IR */
 394    if (!state->error && options->dump_lir) {
 395       _mesa_print_ir(stdout, shader->ir, state);
 396    }
 397
 398    return;
 399 }
 400
 401 extern "C" struct gl_shader_program *
 402 standalone_compile_shader(const struct standalone_options *_options,
 403       unsigned num_files, char* const* files)
 404 {
 405    int status = EXIT_SUCCESS;
 406    static struct gl_context local_ctx;
 407    struct gl_context *ctx = &local_ctx;
 408    bool glsl_es = false;
 409
 410    options = _options;
 411
 412    switch (options->glsl_version) {
 413    case 100:
 414    case 300:
 415       glsl_es = true;
 416       break;
 417    case 110:
 418    case 120:
 419    case 130:
 420    case 140:
 421    case 150:
 422    case 330:
 423    case 400:
 424    case 410:
 425    case 420:
 426    case 430:
 427    case 440:
 428    case 450:
 429    case 460:
 430       glsl_es = false;
 431       break;
 432    default:
 433       fprintf(stderr, "Unrecognized GLSL version `%d'\n", options->glsl_version);
 434       return NULL;
 435    }
 436
 437    if (glsl_es) {
 438       initialize_context(ctx, API_OPENGLES2);
 439    } else {
 440       initialize_context(ctx, options->glsl_version > 130 ? API_OPENGL_CORE : API_OPENGL_COMPAT);
 441    }
 442
 443    struct gl_shader_program *whole_program;
 444
 445    whole_program = rzalloc (NULL, struct gl_shader_program);
 446    assert(whole_program != NULL);
 447    whole_program->data = rzalloc(whole_program, struct gl_shader_program_data);
 448    assert(whole_program->data != NULL);
 449    whole_program->data->InfoLog = ralloc_strdup(whole_program->data, "");
 450
 451    /* Created just to avoid segmentation faults */
 452    whole_program->AttributeBindings = new string_to_uint_map;
 453    whole_program->FragDataBindings = new string_to_uint_map;
 454    whole_program->FragDataIndexBindings = new string_to_uint_map;
 455
 456    for (unsigned i = 0; i < num_files; i++) {
 457       whole_program->Shaders =
 458             reralloc(whole_program, whole_program->Shaders,
 459                   struct gl_shader *, whole_program->NumShaders + 1);
 460       assert(whole_program->Shaders != NULL);
 461
 462       struct gl_shader *shader = rzalloc(whole_program, gl_shader);
 463
 464       whole_program->Shaders[whole_program->NumShaders] = shader;
 465       whole_program->NumShaders++;
 466
 467       const unsigned len = strlen(files[i]);
 468       if (len < 6)
 469          goto fail;
 470
 471       const char *const ext = & files[i][len - 5];
 472       /* TODO add support to read a .shader_test */
 473       if (strncmp(".vert", ext, 5) == 0 || strncmp(".glsl", ext, 5) == 0)
 474          shader->Type = GL_VERTEX_SHADER;
 475       else if (strncmp(".tesc", ext, 5) == 0)
 476          shader->Type = GL_TESS_CONTROL_SHADER;
 477       else if (strncmp(".tese", ext, 5) == 0)
 478          shader->Type = GL_TESS_EVALUATION_SHADER;
 479       else if (strncmp(".geom", ext, 5) == 0)
 480          shader->Type = GL_GEOMETRY_SHADER;
 481       else if (strncmp(".frag", ext, 5) == 0)
 482          shader->Type = GL_FRAGMENT_SHADER;
 483       else if (strncmp(".comp", ext, 5) == 0)
 484          shader->Type = GL_COMPUTE_SHADER;
 485       else
 486          goto fail;
 487       shader->Stage = _mesa_shader_enum_to_shader_stage(shader->Type);
 488
 489       shader->Source = load_text_file(whole_program, files[i]);
 490       if (shader->Source == NULL) {
 491          printf("File \"%s\" does not exist.\n", files[i]);
 492          exit(EXIT_FAILURE);
 493       }
 494
 495       compile_shader(ctx, shader);
 496
 497       if (strlen(shader->InfoLog) > 0) {
 498          if (!options->just_log)
 499             printf("Info log for %s:\n", files[i]);
 500
 501          printf("%s", shader->InfoLog);
 502          if (!options->just_log)
 503             printf("\n");
 504       }
 505
 506       if (!shader->CompileStatus) {
 507          status = EXIT_FAILURE;
 508          break;
 509       }
 510    }
 511
 512    if (status == EXIT_SUCCESS) {
 513       _mesa_clear_shader_program_data(ctx, whole_program);
 514
 515       if (options->do_link)  {
 516          link_shaders(ctx, whole_program);
 517       } else {
 518          const gl_shader_stage stage = whole_program->Shaders[0]->Stage;
 519
 520          whole_program->data->LinkStatus = LINKING_SUCCESS;
 521          whole_program->_LinkedShaders[stage] =
 522             link_intrastage_shaders(whole_program /* mem_ctx */,
 523                                     ctx,
 524                                     whole_program,
 525                                     whole_program->Shaders,
 526                                     1,
 527                                     true);
 528
 529          /* Par-linking can fail, for example, if there are undefined external
 530           * references.
 531           */
 532          if (whole_program->_LinkedShaders[stage] != NULL) {
 533             assert(whole_program->data->LinkStatus);
 534
 535             struct gl_shader_compiler_options *const compiler_options =
 536                &ctx->Const.ShaderCompilerOptions[stage];
 537
 538             exec_list *const ir =
 539                whole_program->_LinkedShaders[stage]->ir;
 540
 541             bool progress;
 542             do {
 543                progress = do_function_inlining(ir);
 544
 545                progress = do_common_optimization(ir,
 546                                                  false,
 547                                                  false,
 548                                                  compiler_options,
 549                                                  true)
 550                   && progress;
 551             } while(progress);
 552          }
 553       }
 554
 555       status = (whole_program->data->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;
 556
 557       if (strlen(whole_program->data->InfoLog) > 0) {
 558          printf("\n");
 559          if (!options->just_log)
 560             printf("Info log for linking:\n");
 561          printf("%s", whole_program->data->InfoLog);
 562          if (!options->just_log)
 563             printf("\n");
 564       }
 565
 566       for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 567          struct gl_linked_shader *shader = whole_program->_LinkedShaders[i];
 568
 569          if (!shader)
 570             continue;
 571
 572          add_neg_to_sub_visitor v;
 573          visit_list_elements(&v, shader->ir);
 574
 575          dead_variable_visitor dv;
 576          visit_list_elements(&dv, shader->ir);
 577          dv.remove_dead_variables();
 578       }
 579
 580       if (options->dump_builder) {
 581          for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 582             struct gl_linked_shader *shader = whole_program->_LinkedShaders[i];
 583
 584             if (!shader)
 585                continue;
 586
 587             _mesa_print_builder_for_ir(stdout, shader->ir);
 588          }
 589       }
 590    }
 591
 592    return whole_program;
 593
 594 fail:
 595    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 596       if (whole_program->_LinkedShaders[i])
 597          ralloc_free(whole_program->_LinkedShaders[i]->Program);
 598    }
 599
 600    ralloc_free(whole_program);
 601    return NULL;
 602 }
 603
 604 extern "C" void
 605 standalone_compiler_cleanup(struct gl_shader_program *whole_program)
 606 {
 607    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 608       if (whole_program->_LinkedShaders[i])
 609          ralloc_free(whole_program->_LinkedShaders[i]->Program);
 610    }
 611
 612    delete whole_program->AttributeBindings;
 613    delete whole_program->FragDataBindings;
 614    delete whole_program->FragDataIndexBindings;
 615
 616    ralloc_free(whole_program);
 617    _mesa_glsl_release_types();
 618    _mesa_glsl_release_builtin_functions();
 619 }