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 "opt_add_neg_to_sub.h"
  45
  46 class dead_variable_visitor : public ir_hierarchical_visitor {
  47 public:
  48    dead_variable_visitor()
  49    {
  50       variables = _mesa_set_create(NULL,
  51                                    _mesa_hash_pointer,
  52                                    _mesa_key_pointer_equal);
  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       struct set_entry *entry;
  89
  90       set_foreach(variables, entry) {
  91          ir_variable *ir = (ir_variable *) entry->key;
  92
  93          assert(ir->ir_type == ir_type_variable);
  94          ir->remove();
  95       }
  96    }
  97
  98 private:
  99    set *variables;
 100 };
 101
 102 void
 103 init_gl_program(struct gl_program *prog, GLenum target)
 104 {
 105    mtx_init(&prog->Mutex, mtx_plain);
 106
 107    prog->RefCount = 1;
 108    prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB;
 109
 110    /* default mapping from samplers to texture units */
 111    for (int i = 0; i < MAX_SAMPLERS; i++)
 112       prog->SamplerUnits[i] = i;
 113 }
 114
 115 struct gl_program *
 116 new_program(struct gl_context *ctx, GLenum target, GLuint id)
 117 {
 118    switch (target) {
 119    case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
 120    case GL_GEOMETRY_PROGRAM_NV:
 121    case GL_TESS_CONTROL_PROGRAM_NV:
 122    case GL_TESS_EVALUATION_PROGRAM_NV:
 123    case GL_FRAGMENT_PROGRAM_ARB:
 124    case GL_COMPUTE_PROGRAM_NV: {
 125       struct gl_program *prog = rzalloc(NULL, struct gl_program);
 126       init_gl_program(prog, target);
 127       return prog;
 128    }
 129    default:
 130       printf("bad target in new_program\n");
 131       return NULL;
 132    }
 133 }
 134
 135 static const struct standalone_options *options;
 136
 137 static void
 138 initialize_context(struct gl_context *ctx, gl_api api)
 139 {
 140    initialize_context_to_defaults(ctx, api);
 141
 142    /* The standalone compiler needs to claim support for almost
 143     * everything in order to compile the built-in functions.
 144     */
 145    ctx->Const.GLSLVersion = options->glsl_version;
 146    ctx->Extensions.ARB_ES3_compatibility = true;
 147    ctx->Const.MaxComputeWorkGroupCount[0] = 65535;
 148    ctx->Const.MaxComputeWorkGroupCount[1] = 65535;
 149    ctx->Const.MaxComputeWorkGroupCount[2] = 65535;
 150    ctx->Const.MaxComputeWorkGroupSize[0] = 1024;
 151    ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
 152    ctx->Const.MaxComputeWorkGroupSize[2] = 64;
 153    ctx->Const.MaxComputeWorkGroupInvocations = 1024;
 154    ctx->Const.MaxComputeSharedMemorySize = 32768;
 155    ctx->Const.MaxComputeVariableGroupSize[0] = 512;
 156    ctx->Const.MaxComputeVariableGroupSize[1] = 512;
 157    ctx->Const.MaxComputeVariableGroupSize[2] = 64;
 158    ctx->Const.MaxComputeVariableGroupInvocations = 512;
 159    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 16;
 160    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents = 1024;
 161    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxCombinedUniformComponents = 1024;
 162    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxInputComponents = 0; /* not used */
 163    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxOutputComponents = 0; /* not used */
 164    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers = 8;
 165    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicCounters = 8;
 166    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxImageUniforms = 8;
 167    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformBlocks = 12;
 168
 169    switch (ctx->Const.GLSLVersion) {
 170    case 100:
 171       ctx->Const.MaxClipPlanes = 0;
 172       ctx->Const.MaxCombinedTextureImageUnits = 8;
 173       ctx->Const.MaxDrawBuffers = 2;
 174       ctx->Const.MinProgramTexelOffset = 0;
 175       ctx->Const.MaxProgramTexelOffset = 0;
 176       ctx->Const.MaxLights = 0;
 177       ctx->Const.MaxTextureCoordUnits = 0;
 178       ctx->Const.MaxTextureUnits = 8;
 179
 180       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 8;
 181       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 182       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 128 * 4;
 183       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 128 * 4;
 184       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 185       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 186
 187       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
 188          ctx->Const.MaxCombinedTextureImageUnits;
 189       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 16 * 4;
 190       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 16 * 4;
 191       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 192          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 193       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 194
 195       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 196       break;
 197    case 110:
 198    case 120:
 199       ctx->Const.MaxClipPlanes = 6;
 200       ctx->Const.MaxCombinedTextureImageUnits = 2;
 201       ctx->Const.MaxDrawBuffers = 1;
 202       ctx->Const.MinProgramTexelOffset = 0;
 203       ctx->Const.MaxProgramTexelOffset = 0;
 204       ctx->Const.MaxLights = 8;
 205       ctx->Const.MaxTextureCoordUnits = 2;
 206       ctx->Const.MaxTextureUnits = 2;
 207
 208       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 209       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 210       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 512;
 211       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 512;
 212       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 213       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 214
 215       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
 216          ctx->Const.MaxCombinedTextureImageUnits;
 217       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 64;
 218       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 64;
 219       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 220          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 221       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 222
 223       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 224       break;
 225    case 130:
 226    case 140:
 227       ctx->Const.MaxClipPlanes = 8;
 228       ctx->Const.MaxCombinedTextureImageUnits = 16;
 229       ctx->Const.MaxDrawBuffers = 8;
 230       ctx->Const.MinProgramTexelOffset = -8;
 231       ctx->Const.MaxProgramTexelOffset = 7;
 232       ctx->Const.MaxLights = 8;
 233       ctx->Const.MaxTextureCoordUnits = 8;
 234       ctx->Const.MaxTextureUnits = 2;
 235
 236       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 237       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 238       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 239       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 240       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 241       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
 242
 243       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 244       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
 245       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 1024;
 246       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 247          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 248       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 249
 250       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
 251       break;
 252    case 150:
 253    case 330:
 254    case 400:
 255    case 410:
 256    case 420:
 257    case 430:
 258    case 440:
 259    case 450:
 260       ctx->Const.MaxClipPlanes = 8;
 261       ctx->Const.MaxDrawBuffers = 8;
 262       ctx->Const.MinProgramTexelOffset = -8;
 263       ctx->Const.MaxProgramTexelOffset = 7;
 264       ctx->Const.MaxLights = 8;
 265       ctx->Const.MaxTextureCoordUnits = 8;
 266       ctx->Const.MaxTextureUnits = 2;
 267
 268       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 269       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 270       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 271       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 272       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 273       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
 274
 275       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = 16;
 276       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxUniformComponents = 1024;
 277       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxCombinedUniformComponents = 1024;
 278       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents =
 279          ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
 280       ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents = 128;
 281
 282       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 283       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
 284       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 1024;
 285       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
 286          ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents;
 287       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 288
 289       ctx->Const.MaxCombinedTextureImageUnits =
 290          ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits
 291          + ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits
 292          + ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits;
 293
 294       ctx->Const.MaxGeometryOutputVertices = 256;
 295       ctx->Const.MaxGeometryTotalOutputComponents = 1024;
 296
 297       ctx->Const.MaxVarying = 60 / 4;
 298       break;
 299    case 300:
 300       ctx->Const.MaxClipPlanes = 8;
 301       ctx->Const.MaxCombinedTextureImageUnits = 32;
 302       ctx->Const.MaxDrawBuffers = 4;
 303       ctx->Const.MinProgramTexelOffset = -8;
 304       ctx->Const.MaxProgramTexelOffset = 7;
 305       ctx->Const.MaxLights = 0;
 306       ctx->Const.MaxTextureCoordUnits = 0;
 307       ctx->Const.MaxTextureUnits = 0;
 308
 309       ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 310       ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
 311       ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
 312       ctx->Const.Program[MESA_SHADER_VERTEX].MaxCombinedUniformComponents = 1024;
 313       ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
 314       ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 16 * 4;
 315
 316       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
 317       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 224;
 318       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxCombinedUniformComponents = 224;
 319       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 15 * 4;
 320       ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
 321
 322       ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents / 4;
 323       break;
 324    }
 325
 326    ctx->Const.GenerateTemporaryNames = true;
 327    ctx->Const.MaxPatchVertices = 32;
 328
 329    /* GL_ARB_explicit_uniform_location, GL_MAX_UNIFORM_LOCATIONS */
 330    ctx->Const.MaxUserAssignableUniformLocations =
 331       4 * MESA_SHADER_STAGES * MAX_UNIFORMS;
 332
 333    ctx->Driver.NewProgram = new_program;
 334 }
 335
 336 /* Returned string will have 'ctx' as its ralloc owner. */
 337 static char *
 338 load_text_file(void *ctx, const char *file_name)
 339 {
 340    char *text = NULL;
 341    size_t size;
 342    size_t total_read = 0;
 343    FILE *fp = fopen(file_name, "rb");
 344
 345    if (!fp) {
 346       return NULL;
 347    }
 348
 349    fseek(fp, 0L, SEEK_END);
 350    size = ftell(fp);
 351    fseek(fp, 0L, SEEK_SET);
 352
 353    text = (char *) ralloc_size(ctx, size + 1);
 354    if (text != NULL) {
 355       do {
 356          size_t bytes = fread(text + total_read,
 357                1, size - total_read, fp);
 358          if (bytes < size - total_read) {
 359             free(text);
 360             text = NULL;
 361             goto error;
 362          }
 363
 364          if (bytes == 0) {
 365             break;
 366          }
 367
 368          total_read += bytes;
 369       } while (total_read < size);
 370
 371       text[total_read] = '\0';
 372       error:;
 373    }
 374
 375    fclose(fp);
 376
 377    return text;
 378 }
 379
 380 void
 381 compile_shader(struct gl_context *ctx, struct gl_shader *shader)
 382 {
 383    struct _mesa_glsl_parse_state *state =
 384       new(shader) _mesa_glsl_parse_state(ctx, shader->Stage, shader);
 385
 386    _mesa_glsl_compile_shader(ctx, shader, options->dump_ast, options->dump_hir);
 387
 388    /* Print out the resulting IR */
 389    if (!state->error && options->dump_lir) {
 390       _mesa_print_ir(stdout, shader->ir, state);
 391    }
 392
 393    return;
 394 }
 395
 396 extern "C" struct gl_shader_program *
 397 standalone_compile_shader(const struct standalone_options *_options,
 398       unsigned num_files, char* const* files)
 399 {
 400    int status = EXIT_SUCCESS;
 401    static struct gl_context local_ctx;
 402    struct gl_context *ctx = &local_ctx;
 403    bool glsl_es = false;
 404
 405    options = _options;
 406
 407    switch (options->glsl_version) {
 408    case 100:
 409    case 300:
 410       glsl_es = true;
 411       break;
 412    case 110:
 413    case 120:
 414    case 130:
 415    case 140:
 416    case 150:
 417    case 330:
 418    case 400:
 419    case 410:
 420    case 420:
 421    case 430:
 422    case 440:
 423    case 450:
 424       glsl_es = false;
 425       break;
 426    default:
 427       fprintf(stderr, "Unrecognized GLSL version `%d'\n", options->glsl_version);
 428       return NULL;
 429    }
 430
 431    if (glsl_es) {
 432       initialize_context(ctx, API_OPENGLES2);
 433    } else {
 434       initialize_context(ctx, options->glsl_version > 130 ? API_OPENGL_CORE : API_OPENGL_COMPAT);
 435    }
 436
 437    struct gl_shader_program *whole_program;
 438
 439    whole_program = rzalloc (NULL, struct gl_shader_program);
 440    assert(whole_program != NULL);
 441    whole_program->data = rzalloc(whole_program, struct gl_shader_program_data);
 442    assert(whole_program->data != NULL);
 443    whole_program->data->InfoLog = ralloc_strdup(whole_program->data, "");
 444
 445    /* Created just to avoid segmentation faults */
 446    whole_program->AttributeBindings = new string_to_uint_map;
 447    whole_program->FragDataBindings = new string_to_uint_map;
 448    whole_program->FragDataIndexBindings = new string_to_uint_map;
 449
 450    for (unsigned i = 0; i < num_files; i++) {
 451       whole_program->Shaders =
 452             reralloc(whole_program, whole_program->Shaders,
 453                   struct gl_shader *, whole_program->NumShaders + 1);
 454       assert(whole_program->Shaders != NULL);
 455
 456       struct gl_shader *shader = rzalloc(whole_program, gl_shader);
 457
 458       whole_program->Shaders[whole_program->NumShaders] = shader;
 459       whole_program->NumShaders++;
 460
 461       const unsigned len = strlen(files[i]);
 462       if (len < 6)
 463          goto fail;
 464
 465       const char *const ext = & files[i][len - 5];
 466       /* TODO add support to read a .shader_test */
 467       if (strncmp(".vert", ext, 5) == 0 || strncmp(".glsl", ext, 5) == 0)
 468          shader->Type = GL_VERTEX_SHADER;
 469       else if (strncmp(".tesc", ext, 5) == 0)
 470          shader->Type = GL_TESS_CONTROL_SHADER;
 471       else if (strncmp(".tese", ext, 5) == 0)
 472          shader->Type = GL_TESS_EVALUATION_SHADER;
 473       else if (strncmp(".geom", ext, 5) == 0)
 474          shader->Type = GL_GEOMETRY_SHADER;
 475       else if (strncmp(".frag", ext, 5) == 0)
 476          shader->Type = GL_FRAGMENT_SHADER;
 477       else if (strncmp(".comp", ext, 5) == 0)
 478          shader->Type = GL_COMPUTE_SHADER;
 479       else
 480          goto fail;
 481       shader->Stage = _mesa_shader_enum_to_shader_stage(shader->Type);
 482
 483       shader->Source = load_text_file(whole_program, files[i]);
 484       if (shader->Source == NULL) {
 485          printf("File \"%s\" does not exist.\n", files[i]);
 486          exit(EXIT_FAILURE);
 487       }
 488
 489       compile_shader(ctx, shader);
 490
 491       if (strlen(shader->InfoLog) > 0) {
 492          if (!options->just_log)
 493             printf("Info log for %s:\n", files[i]);
 494
 495          printf("%s", shader->InfoLog);
 496          if (!options->just_log)
 497             printf("\n");
 498       }
 499
 500       if (!shader->CompileStatus) {
 501          status = EXIT_FAILURE;
 502          break;
 503       }
 504    }
 505
 506    if (status == EXIT_SUCCESS) {
 507       _mesa_clear_shader_program_data(ctx, whole_program);
 508
 509       if (options->do_link)  {
 510          link_shaders(ctx, whole_program);
 511       } else {
 512          const gl_shader_stage stage = whole_program->Shaders[0]->Stage;
 513
 514          whole_program->data->LinkStatus = GL_TRUE;
 515          whole_program->_LinkedShaders[stage] =
 516             link_intrastage_shaders(whole_program /* mem_ctx */,
 517                                     ctx,
 518                                     whole_program,
 519                                     whole_program->Shaders,
 520                                     1,
 521                                     true);
 522
 523          /* Par-linking can fail, for example, if there are undefined external
 524           * references.
 525           */
 526          if (whole_program->_LinkedShaders[stage] != NULL) {
 527             assert(whole_program->data->LinkStatus);
 528
 529             struct gl_shader_compiler_options *const compiler_options =
 530                &ctx->Const.ShaderCompilerOptions[stage];
 531
 532             exec_list *const ir =
 533                whole_program->_LinkedShaders[stage]->ir;
 534
 535             bool progress;
 536             do {
 537                progress = do_function_inlining(ir);
 538
 539                progress = do_common_optimization(ir,
 540                                                  false,
 541                                                  false,
 542                                                  compiler_options,
 543                                                  true)
 544                   && progress;
 545             } while(progress);
 546          }
 547       }
 548
 549       status = (whole_program->data->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;
 550
 551       if (strlen(whole_program->data->InfoLog) > 0) {
 552          printf("\n");
 553          if (!options->just_log)
 554             printf("Info log for linking:\n");
 555          printf("%s", whole_program->data->InfoLog);
 556          if (!options->just_log)
 557             printf("\n");
 558       }
 559
 560       for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 561          struct gl_linked_shader *shader = whole_program->_LinkedShaders[i];
 562
 563          if (!shader)
 564             continue;
 565
 566          add_neg_to_sub_visitor v;
 567          visit_list_elements(&v, shader->ir);
 568
 569          dead_variable_visitor dv;
 570          visit_list_elements(&dv, shader->ir);
 571          dv.remove_dead_variables();
 572       }
 573
 574       if (options->dump_builder) {
 575          for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 576             struct gl_linked_shader *shader = whole_program->_LinkedShaders[i];
 577
 578             if (!shader)
 579                continue;
 580
 581             _mesa_print_builder_for_ir(stdout, shader->ir);
 582          }
 583       }
 584    }
 585
 586    return whole_program;
 587
 588 fail:
 589    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 590       if (whole_program->_LinkedShaders[i])
 591          ralloc_free(whole_program->_LinkedShaders[i]->Program);
 592    }
 593
 594    ralloc_free(whole_program);
 595    return NULL;
 596 }
 597
 598 extern "C" void
 599 standalone_compiler_cleanup(struct gl_shader_program *whole_program)
 600 {
 601    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 602       if (whole_program->_LinkedShaders[i])
 603          ralloc_free(whole_program->_LinkedShaders[i]->Program);
 604    }
 605
 606    delete whole_program->AttributeBindings;
 607    delete whole_program->FragDataBindings;
 608    delete whole_program->FragDataIndexBindings;
 609
 610    ralloc_free(whole_program);
 611    _mesa_glsl_release_types();
 612    _mesa_glsl_release_builtin_functions();
 613 }