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