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 <inttypes.h> /* for PRIx64 macro */
24 #include <stdio.h>
25 #include <stdarg.h>
26 #include <string.h>
27 #include <assert.h>
28
29 #include "main/context.h"
30 #include "main/debug_output.h"
31 #include "main/formats.h"
32 #include "main/shaderobj.h"
33 #include "util/u_atomic.h" /* for p_atomic_cmpxchg */
34 #include "util/ralloc.h"
35 #include "util/disk_cache.h"
36 #include "util/mesa-sha1.h"
37 #include "ast.h"
38 #include "glsl_parser_extras.h"
39 #include "glsl_parser.h"
40 #include "ir_optimization.h"
41 #include "builtin_functions.h"
42
43 /**
44 * Format a short human-readable description of the given GLSL version.
45 */
46 const char *
glsl_compute_version_string(void * mem_ctx,bool is_es,unsigned version)47 glsl_compute_version_string(void *mem_ctx, bool is_es, unsigned version)
48 {
49 return ralloc_asprintf(mem_ctx, "GLSL%s %d.%02d", is_es ? " ES" : "",
50 version / 100, version % 100);
51 }
52
53
54 static const unsigned known_desktop_glsl_versions[] =
55 { 110, 120, 130, 140, 150, 330, 400, 410, 420, 430, 440, 450, 460 };
56 static const unsigned known_desktop_gl_versions[] =
57 { 20, 21, 30, 31, 32, 33, 40, 41, 42, 43, 44, 45, 46 };
58
59
_mesa_glsl_parse_state(struct gl_context * _ctx,gl_shader_stage stage,void * mem_ctx)60 _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct gl_context *_ctx,
61 gl_shader_stage stage,
62 void *mem_ctx)
63 : ctx(_ctx), exts(&_ctx->Extensions), consts(&_ctx->Const),
64 api(_ctx->API), cs_input_local_size_specified(false), cs_input_local_size(),
65 switch_state(), warnings_enabled(true)
66 {
67 assert(stage < MESA_SHADER_STAGES);
68 this->stage = stage;
69
70 this->scanner = NULL;
71 this->translation_unit.make_empty();
72 this->symbols = new(mem_ctx) glsl_symbol_table;
73
74 this->linalloc = linear_context(this);
75
76 this->info_log = ralloc_strdup(mem_ctx, "");
77 this->error = false;
78 this->loop_nesting_ast = NULL;
79
80 this->uses_builtin_functions = false;
81
82 /* Set default language version and extensions */
83 this->language_version = 110;
84 this->forced_language_version = ctx->Const.ForceGLSLVersion;
85 if (ctx->Const.GLSLZeroInit == 1) {
86 this->zero_init = (1u << ir_var_auto) | (1u << ir_var_temporary) | (1u << ir_var_shader_out);
87 } else if (ctx->Const.GLSLZeroInit == 2) {
88 this->zero_init = (1u << ir_var_auto) | (1u << ir_var_temporary) | (1u << ir_var_function_out);
89 } else {
90 this->zero_init = 0;
91 }
92 this->gl_version = 20;
93 this->compat_shader = true;
94 this->es_shader = false;
95 this->ARB_texture_rectangle_enable = true;
96
97 /* OpenGL ES 2.0 has different defaults from desktop GL. */
98 if (_mesa_is_gles2(ctx)) {
99 this->language_version = 100;
100 this->es_shader = true;
101 this->ARB_texture_rectangle_enable = false;
102 }
103
104 this->extensions = &ctx->Extensions;
105
106 this->Const.MaxLights = ctx->Const.MaxLights;
107 this->Const.MaxClipPlanes = ctx->Const.MaxClipPlanes;
108 this->Const.MaxTextureUnits = ctx->Const.MaxTextureUnits;
109 this->Const.MaxTextureCoords = ctx->Const.MaxTextureCoordUnits;
110 this->Const.MaxVertexAttribs = ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs;
111 this->Const.MaxVertexUniformComponents = ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents;
112 this->Const.MaxVertexTextureImageUnits = ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits;
113 this->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxCombinedTextureImageUnits;
114 this->Const.MaxTextureImageUnits = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits;
115 this->Const.MaxFragmentUniformComponents = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
116 this->Const.MinProgramTexelOffset = ctx->Const.MinProgramTexelOffset;
117 this->Const.MaxProgramTexelOffset = ctx->Const.MaxProgramTexelOffset;
118
119 this->Const.MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
120
121 this->Const.MaxDualSourceDrawBuffers = ctx->Const.MaxDualSourceDrawBuffers;
122
123 /* 1.50 constants */
124 this->Const.MaxVertexOutputComponents = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
125 this->Const.MaxGeometryInputComponents = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents;
126 this->Const.MaxGeometryOutputComponents = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents;
127 this->Const.MaxGeometryShaderInvocations = ctx->Const.MaxGeometryShaderInvocations;
128 this->Const.MaxFragmentInputComponents = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents;
129 this->Const.MaxGeometryTextureImageUnits = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits;
130 this->Const.MaxGeometryOutputVertices = ctx->Const.MaxGeometryOutputVertices;
131 this->Const.MaxGeometryTotalOutputComponents = ctx->Const.MaxGeometryTotalOutputComponents;
132 this->Const.MaxGeometryUniformComponents = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxUniformComponents;
133
134 this->Const.MaxVertexAtomicCounters = ctx->Const.Program[MESA_SHADER_VERTEX].MaxAtomicCounters;
135 this->Const.MaxTessControlAtomicCounters = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxAtomicCounters;
136 this->Const.MaxTessEvaluationAtomicCounters = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxAtomicCounters;
137 this->Const.MaxGeometryAtomicCounters = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicCounters;
138 this->Const.MaxFragmentAtomicCounters = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters;
139 this->Const.MaxComputeAtomicCounters = ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicCounters;
140 this->Const.MaxCombinedAtomicCounters = ctx->Const.MaxCombinedAtomicCounters;
141 this->Const.MaxAtomicBufferBindings = ctx->Const.MaxAtomicBufferBindings;
142 this->Const.MaxVertexAtomicCounterBuffers =
143 ctx->Const.Program[MESA_SHADER_VERTEX].MaxAtomicBuffers;
144 this->Const.MaxTessControlAtomicCounterBuffers =
145 ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers;
146 this->Const.MaxTessEvaluationAtomicCounterBuffers =
147 ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers;
148 this->Const.MaxGeometryAtomicCounterBuffers =
149 ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers;
150 this->Const.MaxFragmentAtomicCounterBuffers =
151 ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
152 this->Const.MaxComputeAtomicCounterBuffers =
153 ctx->Const.Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers;
154 this->Const.MaxCombinedAtomicCounterBuffers =
155 ctx->Const.MaxCombinedAtomicBuffers;
156 this->Const.MaxAtomicCounterBufferSize =
157 ctx->Const.MaxAtomicBufferSize;
158
159 /* ARB_enhanced_layouts constants */
160 this->Const.MaxTransformFeedbackBuffers = ctx->Const.MaxTransformFeedbackBuffers;
161 this->Const.MaxTransformFeedbackInterleavedComponents = ctx->Const.MaxTransformFeedbackInterleavedComponents;
162
163 /* Compute shader constants */
164 for (unsigned i = 0; i < ARRAY_SIZE(this->Const.MaxComputeWorkGroupCount); i++)
165 this->Const.MaxComputeWorkGroupCount[i] = ctx->Const.MaxComputeWorkGroupCount[i];
166 for (unsigned i = 0; i < ARRAY_SIZE(this->Const.MaxComputeWorkGroupSize); i++)
167 this->Const.MaxComputeWorkGroupSize[i] = ctx->Const.MaxComputeWorkGroupSize[i];
168
169 this->Const.MaxComputeTextureImageUnits = ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits;
170 this->Const.MaxComputeUniformComponents = ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents;
171
172 this->Const.MaxImageUnits = ctx->Const.MaxImageUnits;
173 this->Const.MaxCombinedShaderOutputResources = ctx->Const.MaxCombinedShaderOutputResources;
174 this->Const.MaxImageSamples = ctx->Const.MaxImageSamples;
175 this->Const.MaxVertexImageUniforms = ctx->Const.Program[MESA_SHADER_VERTEX].MaxImageUniforms;
176 this->Const.MaxTessControlImageUniforms = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms;
177 this->Const.MaxTessEvaluationImageUniforms = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms;
178 this->Const.MaxGeometryImageUniforms = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxImageUniforms;
179 this->Const.MaxFragmentImageUniforms = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxImageUniforms;
180 this->Const.MaxComputeImageUniforms = ctx->Const.Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
181 this->Const.MaxCombinedImageUniforms = ctx->Const.MaxCombinedImageUniforms;
182
183 /* ARB_viewport_array */
184 this->Const.MaxViewports = ctx->Const.MaxViewports;
185
186 /* tessellation shader constants */
187 this->Const.MaxPatchVertices = ctx->Const.MaxPatchVertices;
188 this->Const.MaxTessGenLevel = ctx->Const.MaxTessGenLevel;
189 this->Const.MaxTessControlInputComponents = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxInputComponents;
190 this->Const.MaxTessControlOutputComponents = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxOutputComponents;
191 this->Const.MaxTessControlTextureImageUnits = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits;
192 this->Const.MaxTessEvaluationInputComponents = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxInputComponents;
193 this->Const.MaxTessEvaluationOutputComponents = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxOutputComponents;
194 this->Const.MaxTessEvaluationTextureImageUnits = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits;
195 this->Const.MaxTessPatchComponents = ctx->Const.MaxTessPatchComponents;
196 this->Const.MaxTessControlTotalOutputComponents = ctx->Const.MaxTessControlTotalOutputComponents;
197 this->Const.MaxTessControlUniformComponents = ctx->Const.Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents;
198 this->Const.MaxTessEvaluationUniformComponents = ctx->Const.Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents;
199
200 /* GL 4.5 / OES_sample_variables */
201 this->Const.MaxSamples = ctx->Const.MaxSamples;
202
203 this->current_function = NULL;
204 this->toplevel_ir = NULL;
205 this->found_return = false;
206 this->found_begin_interlock = false;
207 this->found_end_interlock = false;
208 this->all_invariant = false;
209 this->user_structures = NULL;
210 this->num_user_structures = 0;
211 this->num_subroutines = 0;
212 this->subroutines = NULL;
213 this->num_subroutine_types = 0;
214 this->subroutine_types = NULL;
215
216 /* supported_versions should be large enough to support the known desktop
217 * GLSL versions plus 4 GLES versions (ES 1.00, ES 3.00, ES 3.10, ES 3.20)
218 */
219 STATIC_ASSERT((ARRAY_SIZE(known_desktop_glsl_versions) + 4) ==
220 ARRAY_SIZE(this->supported_versions));
221
222 /* Populate the list of supported GLSL versions */
223 /* FINISHME: Once the OpenGL 3.0 'forward compatible' context or
224 * the OpenGL 3.2 Core context is supported, this logic will need
225 * change. Older versions of GLSL are no longer supported
226 * outside the compatibility contexts of 3.x.
227 */
228 this->num_supported_versions = 0;
229 if (_mesa_is_desktop_gl(ctx)) {
230 for (unsigned i = 0; i < ARRAY_SIZE(known_desktop_glsl_versions); i++) {
231 if (known_desktop_glsl_versions[i] <= ctx->Const.GLSLVersion) {
232 this->supported_versions[this->num_supported_versions].ver
233 = known_desktop_glsl_versions[i];
234 this->supported_versions[this->num_supported_versions].gl_ver
235 = known_desktop_gl_versions[i];
236 this->supported_versions[this->num_supported_versions].es = false;
237 this->num_supported_versions++;
238 }
239 }
240 }
241 if (_mesa_is_gles2(ctx) || ctx->Extensions.ARB_ES2_compatibility) {
242 this->supported_versions[this->num_supported_versions].ver = 100;
243 this->supported_versions[this->num_supported_versions].gl_ver = 20;
244 this->supported_versions[this->num_supported_versions].es = true;
245 this->num_supported_versions++;
246 }
247 if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility) {
248 this->supported_versions[this->num_supported_versions].ver = 300;
249 this->supported_versions[this->num_supported_versions].gl_ver = 30;
250 this->supported_versions[this->num_supported_versions].es = true;
251 this->num_supported_versions++;
252 }
253 if (_mesa_is_gles31(ctx) || ctx->Extensions.ARB_ES3_1_compatibility) {
254 this->supported_versions[this->num_supported_versions].ver = 310;
255 this->supported_versions[this->num_supported_versions].gl_ver = 31;
256 this->supported_versions[this->num_supported_versions].es = true;
257 this->num_supported_versions++;
258 }
259 if (_mesa_is_gles32(ctx) ||
260 ctx->Extensions.ARB_ES3_2_compatibility) {
261 this->supported_versions[this->num_supported_versions].ver = 320;
262 this->supported_versions[this->num_supported_versions].gl_ver = 32;
263 this->supported_versions[this->num_supported_versions].es = true;
264 this->num_supported_versions++;
265 }
266
267 /* Create a string for use in error messages to tell the user which GLSL
268 * versions are supported.
269 */
270 char *supported = ralloc_strdup(this, "");
271 for (unsigned i = 0; i < this->num_supported_versions; i++) {
272 unsigned ver = this->supported_versions[i].ver;
273 const char *const prefix = (i == 0)
274 ? ""
275 : ((i == this->num_supported_versions - 1) ? ", and " : ", ");
276 const char *const suffix = (this->supported_versions[i].es) ? " ES" : "";
277
278 ralloc_asprintf_append(& supported, "%s%u.%02u%s",
279 prefix,
280 ver / 100, ver % 100,
281 suffix);
282 }
283
284 this->supported_version_string = supported;
285
286 if (ctx->Const.ForceGLSLExtensionsWarn)
287 _mesa_glsl_process_extension("all", NULL, "warn", NULL, this);
288
289 this->default_uniform_qualifier = new(this) ast_type_qualifier();
290 this->default_uniform_qualifier->flags.q.shared = 1;
291 this->default_uniform_qualifier->flags.q.column_major = 1;
292
293 this->default_shader_storage_qualifier = new(this) ast_type_qualifier();
294 this->default_shader_storage_qualifier->flags.q.shared = 1;
295 this->default_shader_storage_qualifier->flags.q.column_major = 1;
296
297 this->fs_uses_gl_fragcoord = false;
298 this->fs_redeclares_gl_fragcoord = false;
299 this->fs_origin_upper_left = false;
300 this->fs_pixel_center_integer = false;
301 this->fs_redeclares_gl_fragcoord_with_no_layout_qualifiers = false;
302
303 this->gs_input_prim_type_specified = false;
304 this->tcs_output_vertices_specified = false;
305 this->gs_input_size = 0;
306 this->in_qualifier = new(this) ast_type_qualifier();
307 this->out_qualifier = new(this) ast_type_qualifier();
308 this->fs_early_fragment_tests = false;
309 this->fs_inner_coverage = false;
310 this->fs_post_depth_coverage = false;
311 this->fs_pixel_interlock_ordered = false;
312 this->fs_pixel_interlock_unordered = false;
313 this->fs_sample_interlock_ordered = false;
314 this->fs_sample_interlock_unordered = false;
315 this->fs_blend_support = 0;
316 memset(this->atomic_counter_offsets, 0,
317 sizeof(this->atomic_counter_offsets));
318 this->allow_extension_directive_midshader =
319 ctx->Const.AllowGLSLExtensionDirectiveMidShader;
320 this->alias_shader_extension =
321 ctx->Const.AliasShaderExtension;
322 this->allow_vertex_texture_bias =
323 ctx->Const.AllowVertexTextureBias;
324 this->allow_glsl_120_subset_in_110 =
325 ctx->Const.AllowGLSL120SubsetIn110;
326 this->allow_builtin_variable_redeclaration =
327 ctx->Const.AllowGLSLBuiltinVariableRedeclaration;
328 this->ignore_write_to_readonly_var =
329 ctx->Const.GLSLIgnoreWriteToReadonlyVar;
330
331 this->cs_input_local_size_variable_specified = false;
332
333 /* ARB_bindless_texture */
334 this->bindless_sampler_specified = false;
335 this->bindless_image_specified = false;
336 this->bound_sampler_specified = false;
337 this->bound_image_specified = false;
338
339 this->language_version = this->forced_language_version ?
340 this->forced_language_version : this->language_version;
341 set_valid_gl_and_glsl_versions(NULL);
342 }
343
344 /**
345 * Determine whether the current GLSL version is sufficiently high to support
346 * a certain feature, and generate an error message if it isn't.
347 *
348 * \param required_glsl_version and \c required_glsl_es_version are
349 * interpreted as they are in _mesa_glsl_parse_state::is_version().
350 *
351 * \param locp is the parser location where the error should be reported.
352 *
353 * \param fmt (and additional arguments) constitute a printf-style error
354 * message to report if the version check fails. Information about the
355 * current and required GLSL versions will be appended. So, for example, if
356 * the GLSL version being compiled is 1.20, and check_version(130, 300, locp,
357 * "foo unsupported") is called, the error message will be "foo unsupported in
358 * GLSL 1.20 (GLSL 1.30 or GLSL 3.00 ES required)".
359 */
360 bool
check_version(unsigned required_glsl_version,unsigned required_glsl_es_version,YYLTYPE * locp,const char * fmt,...)361 _mesa_glsl_parse_state::check_version(unsigned required_glsl_version,
362 unsigned required_glsl_es_version,
363 YYLTYPE *locp, const char *fmt, ...)
364 {
365 if (this->is_version(required_glsl_version, required_glsl_es_version))
366 return true;
367
368 va_list args;
369 va_start(args, fmt);
370 char *problem = ralloc_vasprintf(this, fmt, args);
371 va_end(args);
372 const char *glsl_version_string
373 = glsl_compute_version_string(this, false, required_glsl_version);
374 const char *glsl_es_version_string
375 = glsl_compute_version_string(this, true, required_glsl_es_version);
376 const char *requirement_string = "";
377 if (required_glsl_version && required_glsl_es_version) {
378 requirement_string = ralloc_asprintf(this, " (%s or %s required)",
379 glsl_version_string,
380 glsl_es_version_string);
381 } else if (required_glsl_version) {
382 requirement_string = ralloc_asprintf(this, " (%s required)",
383 glsl_version_string);
384 } else if (required_glsl_es_version) {
385 requirement_string = ralloc_asprintf(this, " (%s required)",
386 glsl_es_version_string);
387 }
388 _mesa_glsl_error(locp, this, "%s in %s%s",
389 problem, this->get_version_string(),
390 requirement_string);
391
392 return false;
393 }
394
395 /**
396 * This makes sure any GLSL versions defined or overridden are valid. If not it
397 * sets a valid value.
398 */
399 void
set_valid_gl_and_glsl_versions(YYLTYPE * locp)400 _mesa_glsl_parse_state::set_valid_gl_and_glsl_versions(YYLTYPE *locp)
401 {
402 bool supported = false;
403 for (unsigned i = 0; i < this->num_supported_versions; i++) {
404 if (this->supported_versions[i].ver == this->language_version
405 && this->supported_versions[i].es == this->es_shader) {
406 this->gl_version = this->supported_versions[i].gl_ver;
407 supported = true;
408 break;
409 }
410 }
411
412 if (!supported) {
413 if (locp) {
414 _mesa_glsl_error(locp, this, "%s is not supported. "
415 "Supported versions are: %s",
416 this->get_version_string(),
417 this->supported_version_string);
418 }
419
420 /* On exit, the language_version must be set to a valid value.
421 * Later calls to _mesa_glsl_initialize_types will misbehave if
422 * the version is invalid.
423 */
424 switch (this->api) {
425 case API_OPENGL_COMPAT:
426 case API_OPENGL_CORE:
427 this->language_version = this->consts->GLSLVersion;
428 break;
429
430 case API_OPENGLES:
431 FALLTHROUGH;
432
433 case API_OPENGLES2:
434 this->language_version = 100;
435 break;
436 }
437 }
438 }
439
440 /**
441 * Process a GLSL #version directive.
442 *
443 * \param version is the integer that follows the #version token.
444 *
445 * \param ident is a string identifier that follows the integer, if any is
446 * present. Otherwise NULL.
447 */
448 void
process_version_directive(YYLTYPE * locp,int version,const char * ident)449 _mesa_glsl_parse_state::process_version_directive(YYLTYPE *locp, int version,
450 const char *ident)
451 {
452 bool es_token_present = false;
453 bool compat_token_present = false;
454 bool core_token_present = false;
455 if (ident) {
456 if (strcmp(ident, "es") == 0) {
457 es_token_present = true;
458 } else if (version >= 150) {
459 if (strcmp(ident, "core") == 0) {
460 core_token_present = true;
461 } else if (strcmp(ident, "compatibility") == 0) {
462 compat_token_present = true;
463
464 if (this->api != API_OPENGL_COMPAT &&
465 !this->consts->AllowGLSLCompatShaders) {
466 _mesa_glsl_error(locp, this,
467 "the compatibility profile is not supported");
468 }
469 } else {
470 _mesa_glsl_error(locp, this,
471 "\"%s\" is not a valid shading language profile; "
472 "if present, it must be \"core\"", ident);
473 }
474 } else {
475 _mesa_glsl_error(locp, this,
476 "illegal text following version number");
477 }
478 }
479
480 this->es_shader = es_token_present;
481 if (version == 100) {
482 if (es_token_present) {
483 _mesa_glsl_error(locp, this,
484 "GLSL 1.00 ES should be selected using "
485 "`#version 100'");
486 } else {
487 this->es_shader = true;
488 }
489 }
490
491 if (this->es_shader) {
492 this->ARB_texture_rectangle_enable = false;
493 }
494
495 if (this->forced_language_version)
496 this->language_version = this->forced_language_version;
497 else
498 this->language_version = version;
499
500 this->compat_shader = compat_token_present ||
501 this->consts->ForceCompatShaders ||
502 (this->api == API_OPENGL_COMPAT &&
503 this->language_version == 140) ||
504 (!this->es_shader && this->language_version < 140);
505
506 set_valid_gl_and_glsl_versions(locp);
507 }
508
509
510 /* This helper function will append the given message to the shader's
511 info log and report it via GL_ARB_debug_output. Per that extension,
512 'type' is one of the enum values classifying the message, and
513 'id' is the implementation-defined ID of the given message. */
514 static void
_mesa_glsl_msg(const YYLTYPE * locp,_mesa_glsl_parse_state * state,GLenum type,const char * fmt,va_list ap)515 _mesa_glsl_msg(const YYLTYPE *locp, _mesa_glsl_parse_state *state,
516 GLenum type, const char *fmt, va_list ap)
517 {
518 bool error = (type == MESA_DEBUG_TYPE_ERROR);
519 GLuint msg_id = 0;
520
521 assert(state->info_log != NULL);
522
523 /* Get the offset that the new message will be written to. */
524 int msg_offset = strlen(state->info_log);
525
526 if (locp->path) {
527 ralloc_asprintf_append(&state->info_log, "\"%s\"", locp->path);
528 } else {
529 ralloc_asprintf_append(&state->info_log, "%u", locp->source);
530 }
531 ralloc_asprintf_append(&state->info_log, ":%u(%u): %s: ",
532 locp->first_line, locp->first_column,
533 error ? "error" : "warning");
534
535 ralloc_vasprintf_append(&state->info_log, fmt, ap);
536
537 const char *const msg = &state->info_log[msg_offset];
538 struct gl_context *ctx = state->ctx;
539
540 /* Report the error via GL_ARB_debug_output. */
541 _mesa_shader_debug(ctx, type, &msg_id, msg);
542
543 ralloc_strcat(&state->info_log, "\n");
544 }
545
546 void
_mesa_glsl_error(YYLTYPE * locp,_mesa_glsl_parse_state * state,const char * fmt,...)547 _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
548 const char *fmt, ...)
549 {
550 va_list ap;
551
552 state->error = true;
553
554 va_start(ap, fmt);
555 _mesa_glsl_msg(locp, state, MESA_DEBUG_TYPE_ERROR, fmt, ap);
556 va_end(ap);
557 }
558
559
560 void
_mesa_glsl_warning(const YYLTYPE * locp,_mesa_glsl_parse_state * state,const char * fmt,...)561 _mesa_glsl_warning(const YYLTYPE *locp, _mesa_glsl_parse_state *state,
562 const char *fmt, ...)
563 {
564 if (state->warnings_enabled) {
565 va_list ap;
566
567 va_start(ap, fmt);
568 _mesa_glsl_msg(locp, state, MESA_DEBUG_TYPE_OTHER, fmt, ap);
569 va_end(ap);
570 }
571 }
572
573
574 /**
575 * Enum representing the possible behaviors that can be specified in
576 * an #extension directive.
577 */
578 enum ext_behavior {
579 extension_disable,
580 extension_enable,
581 extension_require,
582 extension_warn
583 };
584
585 /**
586 * Element type for _mesa_glsl_supported_extensions
587 */
588 struct _mesa_glsl_extension {
589 /**
590 * Name of the extension when referred to in a GLSL extension
591 * statement
592 */
593 const char *name;
594
595 /**
596 * Whether this extension is a part of AEP
597 */
598 bool aep;
599
600 /**
601 * Predicate that checks whether the relevant extension is available for
602 * this context.
603 */
604 bool (*available_pred)(const struct gl_extensions *,
605 gl_api api, uint8_t version);
606
607 /**
608 * Flag in the _mesa_glsl_parse_state struct that should be set
609 * when this extension is enabled.
610 *
611 * See note in _mesa_glsl_extension::supported_flag about "pointer
612 * to member" types.
613 */
614 bool _mesa_glsl_parse_state::* enable_flag;
615
616 /**
617 * Flag in the _mesa_glsl_parse_state struct that should be set
618 * when the shader requests "warn" behavior for this extension.
619 *
620 * See note in _mesa_glsl_extension::supported_flag about "pointer
621 * to member" types.
622 */
623 bool _mesa_glsl_parse_state::* warn_flag;
624
625
626 bool compatible_with_state(const _mesa_glsl_parse_state *state,
627 gl_api api, uint8_t gl_version) const;
628 void set_flags(_mesa_glsl_parse_state *state, ext_behavior behavior) const;
629 };
630
631 /** Checks if the context supports a user-facing extension */
632 #define EXT(name_str, driver_cap, ...) \
633 static UNUSED bool \
634 has_##name_str(const struct gl_extensions *exts, gl_api api, uint8_t version) \
635 { \
636 return exts->driver_cap && (version >= \
637 _mesa_extension_table[MESA_EXTENSION_##name_str].version[api]); \
638 }
639 #include "main/extensions_table.h"
640 #undef EXT
641
642 #define EXT(NAME) \
643 { "GL_" #NAME, false, has_##NAME, \
644 &_mesa_glsl_parse_state::NAME##_enable, \
645 &_mesa_glsl_parse_state::NAME##_warn }
646
647 #define EXT_AEP(NAME) \
648 { "GL_" #NAME, true, has_##NAME, \
649 &_mesa_glsl_parse_state::NAME##_enable, \
650 &_mesa_glsl_parse_state::NAME##_warn }
651
652 /**
653 * Table of extensions that can be enabled/disabled within a shader,
654 * and the conditions under which they are supported.
655 */
656 static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
657 /* ARB extensions go here, sorted alphabetically.
658 */
659 EXT(ARB_ES3_1_compatibility),
660 EXT(ARB_ES3_2_compatibility),
661 EXT(ARB_arrays_of_arrays),
662 EXT(ARB_bindless_texture),
663 EXT(ARB_compatibility),
664 EXT(ARB_compute_shader),
665 EXT(ARB_compute_variable_group_size),
666 EXT(ARB_conservative_depth),
667 EXT(ARB_cull_distance),
668 EXT(ARB_derivative_control),
669 EXT(ARB_draw_buffers),
670 EXT(ARB_draw_instanced),
671 EXT(ARB_enhanced_layouts),
672 EXT(ARB_explicit_attrib_location),
673 EXT(ARB_explicit_uniform_location),
674 EXT(ARB_fragment_coord_conventions),
675 EXT(ARB_fragment_layer_viewport),
676 EXT(ARB_fragment_shader_interlock),
677 EXT(ARB_gpu_shader5),
678 EXT(ARB_gpu_shader_fp64),
679 EXT(ARB_gpu_shader_int64),
680 EXT(ARB_post_depth_coverage),
681 EXT(ARB_sample_shading),
682 EXT(ARB_separate_shader_objects),
683 EXT(ARB_shader_atomic_counter_ops),
684 EXT(ARB_shader_atomic_counters),
685 EXT(ARB_shader_ballot),
686 EXT(ARB_shader_bit_encoding),
687 EXT(ARB_shader_clock),
688 EXT(ARB_shader_draw_parameters),
689 EXT(ARB_shader_group_vote),
690 EXT(ARB_shader_image_load_store),
691 EXT(ARB_shader_image_size),
692 EXT(ARB_shader_precision),
693 EXT(ARB_shader_stencil_export),
694 EXT(ARB_shader_storage_buffer_object),
695 EXT(ARB_shader_subroutine),
696 EXT(ARB_shader_texture_image_samples),
697 EXT(ARB_shader_texture_lod),
698 EXT(ARB_shader_viewport_layer_array),
699 EXT(ARB_shading_language_420pack),
700 EXT(ARB_shading_language_include),
701 EXT(ARB_shading_language_packing),
702 EXT(ARB_sparse_texture2),
703 EXT(ARB_sparse_texture_clamp),
704 EXT(ARB_tessellation_shader),
705 EXT(ARB_texture_cube_map_array),
706 EXT(ARB_texture_gather),
707 EXT(ARB_texture_multisample),
708 EXT(ARB_texture_query_levels),
709 EXT(ARB_texture_query_lod),
710 EXT(ARB_texture_rectangle),
711 EXT(ARB_uniform_buffer_object),
712 EXT(ARB_vertex_attrib_64bit),
713 EXT(ARB_viewport_array),
714
715 /* KHR extensions go here, sorted alphabetically.
716 */
717 EXT_AEP(KHR_blend_equation_advanced),
718
719 /* OES extensions go here, sorted alphabetically.
720 */
721 EXT(OES_EGL_image_external),
722 EXT(OES_EGL_image_external_essl3),
723 EXT(OES_geometry_point_size),
724 EXT(OES_geometry_shader),
725 EXT(OES_gpu_shader5),
726 EXT(OES_primitive_bounding_box),
727 EXT_AEP(OES_sample_variables),
728 EXT_AEP(OES_shader_image_atomic),
729 EXT(OES_shader_io_blocks),
730 EXT_AEP(OES_shader_multisample_interpolation),
731 EXT(OES_standard_derivatives),
732 EXT(OES_tessellation_point_size),
733 EXT(OES_tessellation_shader),
734 EXT(OES_texture_3D),
735 EXT(OES_texture_buffer),
736 EXT(OES_texture_cube_map_array),
737 EXT_AEP(OES_texture_storage_multisample_2d_array),
738 EXT(OES_viewport_array),
739
740 /* All other extensions go here, sorted alphabetically.
741 */
742 EXT(AMD_conservative_depth),
743 EXT(AMD_gpu_shader_half_float),
744 EXT(AMD_gpu_shader_int64),
745 EXT(AMD_shader_stencil_export),
746 EXT(AMD_shader_trinary_minmax),
747 EXT(AMD_texture_texture4),
748 EXT(AMD_vertex_shader_layer),
749 EXT(AMD_vertex_shader_viewport_index),
750 EXT(ANDROID_extension_pack_es31a),
751 EXT(ARM_shader_framebuffer_fetch_depth_stencil),
752 EXT(EXT_blend_func_extended),
753 EXT(EXT_demote_to_helper_invocation),
754 EXT(EXT_frag_depth),
755 EXT(EXT_draw_buffers),
756 EXT(EXT_draw_instanced),
757 EXT(EXT_clip_cull_distance),
758 EXT(EXT_geometry_point_size),
759 EXT_AEP(EXT_geometry_shader),
760 EXT(EXT_gpu_shader4),
761 EXT_AEP(EXT_gpu_shader5),
762 EXT_AEP(EXT_primitive_bounding_box),
763 EXT(EXT_separate_shader_objects),
764 EXT(EXT_shader_framebuffer_fetch),
765 EXT(EXT_shader_framebuffer_fetch_non_coherent),
766 EXT(EXT_shader_group_vote),
767 EXT(EXT_shader_image_load_formatted),
768 EXT(EXT_shader_image_load_store),
769 EXT(EXT_shader_implicit_conversions),
770 EXT(EXT_shader_integer_mix),
771 EXT_AEP(EXT_shader_io_blocks),
772 EXT(EXT_shader_samples_identical),
773 EXT(EXT_tessellation_point_size),
774 EXT_AEP(EXT_tessellation_shader),
775 EXT(EXT_texture_array),
776 EXT_AEP(EXT_texture_buffer),
777 EXT_AEP(EXT_texture_cube_map_array),
778 EXT(EXT_texture_query_lod),
779 EXT(EXT_texture_shadow_lod),
780 EXT(INTEL_conservative_rasterization),
781 EXT(INTEL_shader_atomic_float_minmax),
782 EXT(INTEL_shader_integer_functions2),
783 EXT(MESA_shader_integer_functions),
784 EXT(NV_compute_shader_derivatives),
785 EXT(NV_fragment_shader_interlock),
786 EXT(NV_image_formats),
787 EXT(NV_shader_atomic_float),
788 EXT(NV_shader_atomic_int64),
789 EXT(NV_shader_noperspective_interpolation),
790 EXT(NV_viewport_array2),
791 };
792
793 #undef EXT
794
795
796 /**
797 * Determine whether a given extension is compatible with the target,
798 * API, and extension information in the current parser state.
799 */
compatible_with_state(const _mesa_glsl_parse_state * state,gl_api api,uint8_t gl_version) const800 bool _mesa_glsl_extension::compatible_with_state(
801 const _mesa_glsl_parse_state *state, gl_api api, uint8_t gl_version) const
802 {
803 return this->available_pred(state->exts, api, gl_version);
804 }
805
806 /**
807 * Set the appropriate flags in the parser state to establish the
808 * given behavior for this extension.
809 */
set_flags(_mesa_glsl_parse_state * state,ext_behavior behavior) const810 void _mesa_glsl_extension::set_flags(_mesa_glsl_parse_state *state,
811 ext_behavior behavior) const
812 {
813 /* Note: the ->* operator indexes into state by the
814 * offsets this->enable_flag and this->warn_flag. See
815 * _mesa_glsl_extension::supported_flag for more info.
816 */
817 state->*(this->enable_flag) = (behavior != extension_disable);
818 state->*(this->warn_flag) = (behavior == extension_warn);
819 }
820
821 /**
822 * Check alias_shader_extension for any aliased shader extensions
823 */
find_extension_alias(_mesa_glsl_parse_state * state,const char * name)824 static const char *find_extension_alias(_mesa_glsl_parse_state *state, const char *name)
825 {
826 char *exts, *field, *ext_alias = NULL;
827
828 /* Copy alias_shader_extension because strtok() is destructive. */
829 exts = strdup(state->alias_shader_extension);
830 if (exts) {
831 for (field = strtok(exts, ","); field != NULL; field = strtok(NULL, ",")) {
832 if(strncmp(name, field, strlen(name)) == 0) {
833 field = strstr(field, ":");
834 if(field) {
835 ext_alias = strdup(field + 1);
836 }
837 break;
838 }
839 }
840
841 free(exts);
842 }
843 return ext_alias;
844 }
845
846 /**
847 * Find an extension by name in _mesa_glsl_supported_extensions. If
848 * the name is not found, return NULL.
849 */
find_extension(_mesa_glsl_parse_state * state,const char * name)850 static const _mesa_glsl_extension *find_extension(_mesa_glsl_parse_state *state, const char *name)
851 {
852 const char *ext_alias = NULL;
853 if (state->alias_shader_extension) {
854 ext_alias = find_extension_alias(state, name);
855 name = ext_alias ? ext_alias : name;
856 }
857
858 for (unsigned i = 0; i < ARRAY_SIZE(_mesa_glsl_supported_extensions); ++i) {
859 if (strcmp(name, _mesa_glsl_supported_extensions[i].name) == 0) {
860 free((void *)ext_alias);
861 return &_mesa_glsl_supported_extensions[i];
862 }
863 }
864
865 free((void *)ext_alias);
866 return NULL;
867 }
868
869 bool
_mesa_glsl_process_extension(const char * name,YYLTYPE * name_locp,const char * behavior_string,YYLTYPE * behavior_locp,_mesa_glsl_parse_state * state)870 _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
871 const char *behavior_string, YYLTYPE *behavior_locp,
872 _mesa_glsl_parse_state *state)
873 {
874 uint8_t gl_version = state->exts->Version;
875 gl_api api = state->api;
876 ext_behavior behavior;
877 if (strcmp(behavior_string, "warn") == 0) {
878 behavior = extension_warn;
879 } else if (strcmp(behavior_string, "require") == 0) {
880 behavior = extension_require;
881 } else if (strcmp(behavior_string, "enable") == 0) {
882 behavior = extension_enable;
883 } else if (strcmp(behavior_string, "disable") == 0) {
884 behavior = extension_disable;
885 } else {
886 _mesa_glsl_error(behavior_locp, state,
887 "unknown extension behavior `%s'",
888 behavior_string);
889 return false;
890 }
891
892 /* If we're in a desktop context but with an ES shader, use an ES API enum
893 * to verify extension availability.
894 */
895 if (state->es_shader && api != API_OPENGLES2)
896 api = API_OPENGLES2;
897 /* Use the language-version derived GL version to extension checks, unless
898 * we're using meta, which sets the version to the max.
899 */
900 if (gl_version != 0xff)
901 gl_version = state->gl_version;
902
903 if (strcmp(name, "all") == 0) {
904 if ((behavior == extension_enable) || (behavior == extension_require)) {
905 _mesa_glsl_error(name_locp, state, "cannot %s all extensions",
906 (behavior == extension_enable)
907 ? "enable" : "require");
908 return false;
909 } else {
910 for (unsigned i = 0;
911 i < ARRAY_SIZE(_mesa_glsl_supported_extensions); ++i) {
912 const _mesa_glsl_extension *extension
913 = &_mesa_glsl_supported_extensions[i];
914 if (extension->compatible_with_state(state, api, gl_version)) {
915 _mesa_glsl_supported_extensions[i].set_flags(state, behavior);
916 }
917 }
918 }
919 } else {
920 const _mesa_glsl_extension *extension = find_extension(state, name);
921 if (extension &&
922 (extension->compatible_with_state(state, api, gl_version) ||
923 (state->consts->AllowGLSLCompatShaders &&
924 extension->compatible_with_state(state, API_OPENGL_COMPAT, gl_version)))) {
925 extension->set_flags(state, behavior);
926 if (extension->available_pred == has_ANDROID_extension_pack_es31a) {
927 for (unsigned i = 0;
928 i < ARRAY_SIZE(_mesa_glsl_supported_extensions); ++i) {
929 const _mesa_glsl_extension *extension =
930 &_mesa_glsl_supported_extensions[i];
931
932 if (!extension->aep)
933 continue;
934 /* AEP should not be enabled if all of the sub-extensions can't
935 * also be enabled. This is not the proper layer to do such
936 * error-checking though.
937 */
938 assert(extension->compatible_with_state(state, api, gl_version));
939 extension->set_flags(state, behavior);
940 }
941 }
942 } else {
943 static const char fmt[] = "extension `%s' unsupported in %s shader";
944
945 if (behavior == extension_require) {
946 _mesa_glsl_error(name_locp, state, fmt,
947 name, _mesa_shader_stage_to_string(state->stage));
948 return false;
949 } else {
950 _mesa_glsl_warning(name_locp, state, fmt,
951 name, _mesa_shader_stage_to_string(state->stage));
952 }
953 }
954 }
955
956 return true;
957 }
958
959 bool
_mesa_glsl_can_implicitly_convert(const glsl_type * from,const glsl_type * desired,_mesa_glsl_parse_state * state)960 _mesa_glsl_can_implicitly_convert(const glsl_type *from, const glsl_type *desired,
961 _mesa_glsl_parse_state *state)
962 {
963 if (from == desired)
964 return true;
965
966 /* GLSL 1.10 and ESSL do not allow implicit conversions. If there is no
967 * state, we're doing intra-stage function linking where these checks have
968 * already been done.
969 */
970 if (state && !state->has_implicit_conversions())
971 return false;
972
973 /* There is no conversion among matrix types. */
974 if (from->matrix_columns > 1 || desired->matrix_columns > 1)
975 return false;
976
977 /* Vector size must match. */
978 if (from->vector_elements != desired->vector_elements)
979 return false;
980
981 /* int and uint can be converted to float. */
982 if (glsl_type_is_float(desired) && (glsl_type_is_integer_32(from) ||
983 glsl_type_is_float_16(from)))
984 return true;
985
986 /* With GLSL 4.0, ARB_gpu_shader5, or MESA_shader_integer_functions, int
987 * can be converted to uint. Note that state may be NULL here, when
988 * resolving function calls in the linker. By this time, all the
989 * state-dependent checks have already happened though, so allow anything
990 * that's allowed in any shader version.
991 */
992 if ((!state || state->has_implicit_int_to_uint_conversion()) &&
993 desired->base_type == GLSL_TYPE_UINT && from->base_type == GLSL_TYPE_INT)
994 return true;
995
996 /* No implicit conversions from double. */
997 if ((!state || state->has_double()) && glsl_type_is_double(from))
998 return false;
999
1000 /* Conversions from different types to double. */
1001 if ((!state || state->has_double()) && glsl_type_is_double(desired)) {
1002 if (glsl_type_is_float_16_32(from))
1003 return true;
1004 if (glsl_type_is_integer_32(from))
1005 return true;
1006 }
1007
1008 return false;
1009 }
1010
1011 /**
1012 * Recurses through <type> and <expr> if <expr> is an aggregate initializer
1013 * and sets <expr>'s <constructor_type> field to <type>. Gives later functions
1014 * (process_array_constructor, et al) sufficient information to do type
1015 * checking.
1016 *
1017 * Operates on assignments involving an aggregate initializer. E.g.,
1018 *
1019 * vec4 pos = {1.0, -1.0, 0.0, 1.0};
1020 *
1021 * or more ridiculously,
1022 *
1023 * struct S {
1024 * vec4 v[2];
1025 * };
1026 *
1027 * struct {
1028 * S a[2], b;
1029 * int c;
1030 * } aggregate = {
1031 * {
1032 * {
1033 * {
1034 * {1.0, 2.0, 3.0, 4.0}, // a[0].v[0]
1035 * {5.0, 6.0, 7.0, 8.0} // a[0].v[1]
1036 * } // a[0].v
1037 * }, // a[0]
1038 * {
1039 * {
1040 * {1.0, 2.0, 3.0, 4.0}, // a[1].v[0]
1041 * {5.0, 6.0, 7.0, 8.0} // a[1].v[1]
1042 * } // a[1].v
1043 * } // a[1]
1044 * }, // a
1045 * {
1046 * {
1047 * {1.0, 2.0, 3.0, 4.0}, // b.v[0]
1048 * {5.0, 6.0, 7.0, 8.0} // b.v[1]
1049 * } // b.v
1050 * }, // b
1051 * 4 // c
1052 * };
1053 *
1054 * This pass is necessary because the right-hand side of <type> e = { ... }
1055 * doesn't contain sufficient information to determine if the types match.
1056 */
1057 void
_mesa_ast_set_aggregate_type(const glsl_type * type,ast_expression * expr)1058 _mesa_ast_set_aggregate_type(const glsl_type *type,
1059 ast_expression *expr)
1060 {
1061 ast_aggregate_initializer *ai = (ast_aggregate_initializer *)expr;
1062 ai->constructor_type = type;
1063
1064 /* If the aggregate is an array, recursively set its elements' types. */
1065 if (glsl_type_is_array(type)) {
1066 /* Each array element has the type type->fields.array.
1067 *
1068 * E.g., if <type> if struct S[2] we want to set each element's type to
1069 * struct S.
1070 */
1071 for (exec_node *expr_node = ai->expressions.get_head_raw();
1072 !expr_node->is_tail_sentinel();
1073 expr_node = expr_node->next) {
1074 ast_expression *expr = exec_node_data(ast_expression, expr_node,
1075 link);
1076
1077 if (expr->oper == ast_aggregate)
1078 _mesa_ast_set_aggregate_type(type->fields.array, expr);
1079 }
1080
1081 /* If the aggregate is a struct, recursively set its fields' types. */
1082 } else if (glsl_type_is_struct(type)) {
1083 exec_node *expr_node = ai->expressions.get_head_raw();
1084
1085 /* Iterate through the struct's fields. */
1086 for (unsigned i = 0; !expr_node->is_tail_sentinel() && i < type->length;
1087 i++, expr_node = expr_node->next) {
1088 ast_expression *expr = exec_node_data(ast_expression, expr_node,
1089 link);
1090
1091 if (expr->oper == ast_aggregate) {
1092 _mesa_ast_set_aggregate_type(type->fields.structure[i].type, expr);
1093 }
1094 }
1095 /* If the aggregate is a matrix, set its columns' types. */
1096 } else if (glsl_type_is_matrix(type)) {
1097 for (exec_node *expr_node = ai->expressions.get_head_raw();
1098 !expr_node->is_tail_sentinel();
1099 expr_node = expr_node->next) {
1100 ast_expression *expr = exec_node_data(ast_expression, expr_node,
1101 link);
1102
1103 if (expr->oper == ast_aggregate)
1104 _mesa_ast_set_aggregate_type(glsl_get_column_type(type), expr);
1105 }
1106 }
1107 }
1108
1109 void
_mesa_ast_process_interface_block(YYLTYPE * locp,_mesa_glsl_parse_state * state,ast_interface_block * const block,const struct ast_type_qualifier & q)1110 _mesa_ast_process_interface_block(YYLTYPE *locp,
1111 _mesa_glsl_parse_state *state,
1112 ast_interface_block *const block,
1113 const struct ast_type_qualifier &q)
1114 {
1115 if (q.flags.q.buffer) {
1116 if (!state->has_shader_storage_buffer_objects()) {
1117 _mesa_glsl_error(locp, state,
1118 "#version 430 / GL_ARB_shader_storage_buffer_object "
1119 "required for defining shader storage blocks");
1120 } else if (state->ARB_shader_storage_buffer_object_warn) {
1121 _mesa_glsl_warning(locp, state,
1122 "#version 430 / GL_ARB_shader_storage_buffer_object "
1123 "required for defining shader storage blocks");
1124 }
1125 } else if (q.flags.q.uniform) {
1126 if (!state->has_uniform_buffer_objects()) {
1127 _mesa_glsl_error(locp, state,
1128 "#version 140 / GL_ARB_uniform_buffer_object "
1129 "required for defining uniform blocks");
1130 } else if (state->ARB_uniform_buffer_object_warn) {
1131 _mesa_glsl_warning(locp, state,
1132 "#version 140 / GL_ARB_uniform_buffer_object "
1133 "required for defining uniform blocks");
1134 }
1135 } else {
1136 if (!state->has_shader_io_blocks()) {
1137 if (state->es_shader) {
1138 _mesa_glsl_error(locp, state,
1139 "GL_OES_shader_io_blocks or #version 320 "
1140 "required for using interface blocks");
1141 } else {
1142 _mesa_glsl_error(locp, state,
1143 "#version 150 required for using "
1144 "interface blocks");
1145 }
1146 }
1147 }
1148
1149 /* From the GLSL 1.50.11 spec, section 4.3.7 ("Interface Blocks"):
1150 * "It is illegal to have an input block in a vertex shader
1151 * or an output block in a fragment shader"
1152 */
1153 if ((state->stage == MESA_SHADER_VERTEX) && q.flags.q.in) {
1154 _mesa_glsl_error(locp, state,
1155 "`in' interface block is not allowed for "
1156 "a vertex shader");
1157 } else if ((state->stage == MESA_SHADER_FRAGMENT) && q.flags.q.out) {
1158 _mesa_glsl_error(locp, state,
1159 "`out' interface block is not allowed for "
1160 "a fragment shader");
1161 }
1162
1163 /* Since block arrays require names, and both features are added in
1164 * the same language versions, we don't have to explicitly
1165 * version-check both things.
1166 */
1167 if (block->instance_name != NULL) {
1168 state->check_version(150, 300, locp, "interface blocks with "
1169 "an instance name are not allowed");
1170 }
1171
1172 ast_type_qualifier::bitset_t interface_type_mask;
1173 struct ast_type_qualifier temp_type_qualifier;
1174
1175 /* Get a bitmask containing only the in/out/uniform/buffer
1176 * flags, allowing us to ignore other irrelevant flags like
1177 * interpolation qualifiers.
1178 */
1179 temp_type_qualifier.flags.i = 0;
1180 temp_type_qualifier.flags.q.uniform = true;
1181 temp_type_qualifier.flags.q.in = true;
1182 temp_type_qualifier.flags.q.out = true;
1183 temp_type_qualifier.flags.q.buffer = true;
1184 temp_type_qualifier.flags.q.patch = true;
1185 interface_type_mask = temp_type_qualifier.flags.i;
1186
1187 /* Get the block's interface qualifier. The interface_qualifier
1188 * production rule guarantees that only one bit will be set (and
1189 * it will be in/out/uniform).
1190 */
1191 ast_type_qualifier::bitset_t block_interface_qualifier = q.flags.i;
1192
1193 block->default_layout.flags.i |= block_interface_qualifier;
1194
1195 if (state->stage == MESA_SHADER_GEOMETRY &&
1196 state->has_explicit_attrib_stream() &&
1197 block->default_layout.flags.q.out) {
1198 /* Assign global layout's stream value. */
1199 block->default_layout.flags.q.stream = 1;
1200 block->default_layout.flags.q.explicit_stream = 0;
1201 block->default_layout.stream = state->out_qualifier->stream;
1202 }
1203
1204 if (state->has_enhanced_layouts() && block->default_layout.flags.q.out &&
1205 state->exts->ARB_transform_feedback3) {
1206 /* Assign global layout's xfb_buffer value. */
1207 block->default_layout.flags.q.xfb_buffer = 1;
1208 block->default_layout.flags.q.explicit_xfb_buffer = 0;
1209 block->default_layout.xfb_buffer = state->out_qualifier->xfb_buffer;
1210 }
1211
1212 foreach_list_typed (ast_declarator_list, member, link, &block->declarations) {
1213 ast_type_qualifier& qualifier = member->type->qualifier;
1214 if ((qualifier.flags.i & interface_type_mask) == 0) {
1215 /* GLSLangSpec.1.50.11, 4.3.7 (Interface Blocks):
1216 * "If no optional qualifier is used in a member declaration, the
1217 * qualifier of the variable is just in, out, or uniform as declared
1218 * by interface-qualifier."
1219 */
1220 qualifier.flags.i |= block_interface_qualifier;
1221 } else if ((qualifier.flags.i & interface_type_mask) !=
1222 block_interface_qualifier) {
1223 /* GLSLangSpec.1.50.11, 4.3.7 (Interface Blocks):
1224 * "If optional qualifiers are used, they can include interpolation
1225 * and storage qualifiers and they must declare an input, output,
1226 * or uniform variable consistent with the interface qualifier of
1227 * the block."
1228 */
1229 _mesa_glsl_error(locp, state,
1230 "uniform/in/out qualifier on "
1231 "interface block member does not match "
1232 "the interface block");
1233 }
1234
1235 if (!(q.flags.q.in || q.flags.q.out) && qualifier.flags.q.invariant)
1236 _mesa_glsl_error(locp, state,
1237 "invariant qualifiers can be used only "
1238 "in interface block members for shader "
1239 "inputs or outputs");
1240 }
1241 }
1242
1243 static void
_mesa_ast_type_qualifier_print(const struct ast_type_qualifier * q)1244 _mesa_ast_type_qualifier_print(const struct ast_type_qualifier *q)
1245 {
1246 if (q->is_subroutine_decl())
1247 printf("subroutine ");
1248
1249 if (q->subroutine_list) {
1250 printf("subroutine (");
1251 q->subroutine_list->print();
1252 printf(")");
1253 }
1254
1255 if (q->flags.q.constant)
1256 printf("const ");
1257
1258 if (q->flags.q.invariant)
1259 printf("invariant ");
1260
1261 if (q->flags.q.attribute)
1262 printf("attribute ");
1263
1264 if (q->flags.q.varying)
1265 printf("varying ");
1266
1267 if (q->flags.q.in && q->flags.q.out)
1268 printf("inout ");
1269 else {
1270 if (q->flags.q.in)
1271 printf("in ");
1272
1273 if (q->flags.q.out)
1274 printf("out ");
1275 }
1276
1277 if (q->flags.q.centroid)
1278 printf("centroid ");
1279 if (q->flags.q.sample)
1280 printf("sample ");
1281 if (q->flags.q.patch)
1282 printf("patch ");
1283 if (q->flags.q.uniform)
1284 printf("uniform ");
1285 if (q->flags.q.buffer)
1286 printf("buffer ");
1287 if (q->flags.q.smooth)
1288 printf("smooth ");
1289 if (q->flags.q.flat)
1290 printf("flat ");
1291 if (q->flags.q.noperspective)
1292 printf("noperspective ");
1293 }
1294
1295
1296 void
print(void) const1297 ast_node::print(void) const
1298 {
1299 printf("unhandled node ");
1300 }
1301
1302
ast_node(void)1303 ast_node::ast_node(void)
1304 {
1305 this->location.path = NULL;
1306 this->location.source = 0;
1307 this->location.first_line = 0;
1308 this->location.first_column = 0;
1309 this->location.last_line = 0;
1310 this->location.last_column = 0;
1311 }
1312
1313
1314 static void
ast_opt_array_dimensions_print(const ast_array_specifier * array_specifier)1315 ast_opt_array_dimensions_print(const ast_array_specifier *array_specifier)
1316 {
1317 if (array_specifier)
1318 array_specifier->print();
1319 }
1320
1321
1322 void
print(void) const1323 ast_compound_statement::print(void) const
1324 {
1325 printf("{\n");
1326
1327 foreach_list_typed(ast_node, ast, link, &this->statements) {
1328 ast->print();
1329 }
1330
1331 printf("}\n");
1332 }
1333
1334
ast_compound_statement(int new_scope,ast_node * statements)1335 ast_compound_statement::ast_compound_statement(int new_scope,
1336 ast_node *statements)
1337 {
1338 this->new_scope = new_scope;
1339
1340 if (statements != NULL) {
1341 this->statements.push_degenerate_list_at_head(&statements->link);
1342 }
1343 }
1344
1345
1346 void
print(void) const1347 ast_expression::print(void) const
1348 {
1349 switch (oper) {
1350 case ast_assign:
1351 case ast_mul_assign:
1352 case ast_div_assign:
1353 case ast_mod_assign:
1354 case ast_add_assign:
1355 case ast_sub_assign:
1356 case ast_ls_assign:
1357 case ast_rs_assign:
1358 case ast_and_assign:
1359 case ast_xor_assign:
1360 case ast_or_assign:
1361 subexpressions[0]->print();
1362 printf("%s ", operator_string(oper));
1363 subexpressions[1]->print();
1364 break;
1365
1366 case ast_field_selection:
1367 subexpressions[0]->print();
1368 printf(". %s ", primary_expression.identifier);
1369 break;
1370
1371 case ast_plus:
1372 case ast_neg:
1373 case ast_bit_not:
1374 case ast_logic_not:
1375 case ast_pre_inc:
1376 case ast_pre_dec:
1377 printf("%s ", operator_string(oper));
1378 subexpressions[0]->print();
1379 break;
1380
1381 case ast_post_inc:
1382 case ast_post_dec:
1383 subexpressions[0]->print();
1384 printf("%s ", operator_string(oper));
1385 break;
1386
1387 case ast_conditional:
1388 subexpressions[0]->print();
1389 printf("? ");
1390 subexpressions[1]->print();
1391 printf(": ");
1392 subexpressions[2]->print();
1393 break;
1394
1395 case ast_array_index:
1396 subexpressions[0]->print();
1397 printf("[ ");
1398 subexpressions[1]->print();
1399 printf("] ");
1400 break;
1401
1402 case ast_function_call: {
1403 subexpressions[0]->print();
1404 printf("( ");
1405
1406 foreach_list_typed (ast_node, ast, link, &this->expressions) {
1407 if (&ast->link != this->expressions.get_head())
1408 printf(", ");
1409
1410 ast->print();
1411 }
1412
1413 printf(") ");
1414 break;
1415 }
1416
1417 case ast_identifier:
1418 printf("%s ", primary_expression.identifier);
1419 break;
1420
1421 case ast_int_constant:
1422 printf("%d ", primary_expression.int_constant);
1423 break;
1424
1425 case ast_uint_constant:
1426 printf("%u ", primary_expression.uint_constant);
1427 break;
1428
1429 case ast_float_constant:
1430 printf("%f ", primary_expression.float_constant);
1431 break;
1432
1433 case ast_double_constant:
1434 printf("%f ", primary_expression.double_constant);
1435 break;
1436
1437 case ast_int64_constant:
1438 printf("%" PRId64 " ", primary_expression.int64_constant);
1439 break;
1440
1441 case ast_uint64_constant:
1442 printf("%" PRIu64 " ", primary_expression.uint64_constant);
1443 break;
1444
1445 case ast_bool_constant:
1446 printf("%s ",
1447 primary_expression.bool_constant
1448 ? "true" : "false");
1449 break;
1450
1451 case ast_sequence: {
1452 printf("( ");
1453 foreach_list_typed (ast_node, ast, link, & this->expressions) {
1454 if (&ast->link != this->expressions.get_head())
1455 printf(", ");
1456
1457 ast->print();
1458 }
1459 printf(") ");
1460 break;
1461 }
1462
1463 case ast_aggregate: {
1464 printf("{ ");
1465 foreach_list_typed (ast_node, ast, link, & this->expressions) {
1466 if (&ast->link != this->expressions.get_head())
1467 printf(", ");
1468
1469 ast->print();
1470 }
1471 printf("} ");
1472 break;
1473 }
1474
1475 default:
1476 assert(0);
1477 break;
1478 }
1479 }
1480
ast_expression(int oper,ast_expression * ex0,ast_expression * ex1,ast_expression * ex2)1481 ast_expression::ast_expression(int oper,
1482 ast_expression *ex0,
1483 ast_expression *ex1,
1484 ast_expression *ex2) :
1485 primary_expression()
1486 {
1487 this->oper = ast_operators(oper);
1488 this->subexpressions[0] = ex0;
1489 this->subexpressions[1] = ex1;
1490 this->subexpressions[2] = ex2;
1491 this->non_lvalue_description = NULL;
1492 this->is_lhs = false;
1493 }
1494
1495
1496 void
print(void) const1497 ast_expression_statement::print(void) const
1498 {
1499 if (expression)
1500 expression->print();
1501
1502 printf("; ");
1503 }
1504
1505
ast_expression_statement(ast_expression * ex)1506 ast_expression_statement::ast_expression_statement(ast_expression *ex) :
1507 expression(ex)
1508 {
1509 /* empty */
1510 }
1511
1512
1513 void
print(void) const1514 ast_function::print(void) const
1515 {
1516 return_type->print();
1517 printf(" %s (", identifier);
1518
1519 foreach_list_typed(ast_node, ast, link, & this->parameters) {
1520 ast->print();
1521 }
1522
1523 printf(")");
1524 }
1525
1526
ast_function(void)1527 ast_function::ast_function(void)
1528 : return_type(NULL), identifier(NULL), is_definition(false),
1529 signature(NULL)
1530 {
1531 /* empty */
1532 }
1533
1534
1535 void
print(void) const1536 ast_fully_specified_type::print(void) const
1537 {
1538 _mesa_ast_type_qualifier_print(& qualifier);
1539 specifier->print();
1540 }
1541
1542
1543 void
print(void) const1544 ast_parameter_declarator::print(void) const
1545 {
1546 type->print();
1547 if (identifier)
1548 printf("%s ", identifier);
1549 ast_opt_array_dimensions_print(array_specifier);
1550 }
1551
1552
1553 void
print(void) const1554 ast_function_definition::print(void) const
1555 {
1556 prototype->print();
1557 body->print();
1558 }
1559
1560
1561 void
print(void) const1562 ast_declaration::print(void) const
1563 {
1564 printf("%s ", identifier);
1565 ast_opt_array_dimensions_print(array_specifier);
1566
1567 if (initializer) {
1568 printf("= ");
1569 initializer->print();
1570 }
1571 }
1572
1573
ast_declaration(const char * identifier,ast_array_specifier * array_specifier,ast_expression * initializer)1574 ast_declaration::ast_declaration(const char *identifier,
1575 ast_array_specifier *array_specifier,
1576 ast_expression *initializer)
1577 {
1578 this->identifier = identifier;
1579 this->array_specifier = array_specifier;
1580 this->initializer = initializer;
1581 }
1582
1583
1584 void
print(void) const1585 ast_declarator_list::print(void) const
1586 {
1587 assert(type || invariant);
1588
1589 if (type)
1590 type->print();
1591 else if (invariant)
1592 printf("invariant ");
1593 else
1594 printf("precise ");
1595
1596 foreach_list_typed (ast_node, ast, link, & this->declarations) {
1597 if (&ast->link != this->declarations.get_head())
1598 printf(", ");
1599
1600 ast->print();
1601 }
1602
1603 printf("; ");
1604 }
1605
1606
ast_declarator_list(ast_fully_specified_type * type)1607 ast_declarator_list::ast_declarator_list(ast_fully_specified_type *type)
1608 {
1609 this->type = type;
1610 this->invariant = false;
1611 this->precise = false;
1612 }
1613
1614 void
print(void) const1615 ast_jump_statement::print(void) const
1616 {
1617 switch (mode) {
1618 case ast_continue:
1619 printf("continue; ");
1620 break;
1621 case ast_break:
1622 printf("break; ");
1623 break;
1624 case ast_return:
1625 printf("return ");
1626 if (opt_return_value)
1627 opt_return_value->print();
1628
1629 printf("; ");
1630 break;
1631 case ast_discard:
1632 printf("discard; ");
1633 break;
1634 }
1635 }
1636
1637
ast_jump_statement(int mode,ast_expression * return_value)1638 ast_jump_statement::ast_jump_statement(int mode, ast_expression *return_value)
1639 : opt_return_value(NULL)
1640 {
1641 this->mode = ast_jump_modes(mode);
1642
1643 if (mode == ast_return)
1644 opt_return_value = return_value;
1645 }
1646
1647
1648 void
print(void) const1649 ast_demote_statement::print(void) const
1650 {
1651 printf("demote; ");
1652 }
1653
1654
1655 void
print(void) const1656 ast_selection_statement::print(void) const
1657 {
1658 printf("if ( ");
1659 condition->print();
1660 printf(") ");
1661
1662 then_statement->print();
1663
1664 if (else_statement) {
1665 printf("else ");
1666 else_statement->print();
1667 }
1668 }
1669
1670
ast_selection_statement(ast_expression * condition,ast_node * then_statement,ast_node * else_statement)1671 ast_selection_statement::ast_selection_statement(ast_expression *condition,
1672 ast_node *then_statement,
1673 ast_node *else_statement)
1674 {
1675 this->condition = condition;
1676 this->then_statement = then_statement;
1677 this->else_statement = else_statement;
1678 }
1679
1680
1681 void
print(void) const1682 ast_switch_statement::print(void) const
1683 {
1684 printf("switch ( ");
1685 test_expression->print();
1686 printf(") ");
1687
1688 body->print();
1689 }
1690
1691
ast_switch_statement(ast_expression * test_expression,ast_node * body)1692 ast_switch_statement::ast_switch_statement(ast_expression *test_expression,
1693 ast_node *body)
1694 {
1695 this->test_expression = test_expression;
1696 this->body = body;
1697 this->test_val = NULL;
1698 }
1699
1700
1701 void
print(void) const1702 ast_switch_body::print(void) const
1703 {
1704 printf("{\n");
1705 if (stmts != NULL) {
1706 stmts->print();
1707 }
1708 printf("}\n");
1709 }
1710
1711
ast_switch_body(ast_case_statement_list * stmts)1712 ast_switch_body::ast_switch_body(ast_case_statement_list *stmts)
1713 {
1714 this->stmts = stmts;
1715 }
1716
1717
print(void) const1718 void ast_case_label::print(void) const
1719 {
1720 if (test_value != NULL) {
1721 printf("case ");
1722 test_value->print();
1723 printf(": ");
1724 } else {
1725 printf("default: ");
1726 }
1727 }
1728
1729
ast_case_label(ast_expression * test_value)1730 ast_case_label::ast_case_label(ast_expression *test_value)
1731 {
1732 this->test_value = test_value;
1733 }
1734
1735
print(void) const1736 void ast_case_label_list::print(void) const
1737 {
1738 foreach_list_typed(ast_node, ast, link, & this->labels) {
1739 ast->print();
1740 }
1741 printf("\n");
1742 }
1743
1744
ast_case_label_list(void)1745 ast_case_label_list::ast_case_label_list(void)
1746 {
1747 }
1748
1749
print(void) const1750 void ast_case_statement::print(void) const
1751 {
1752 labels->print();
1753 foreach_list_typed(ast_node, ast, link, & this->stmts) {
1754 ast->print();
1755 printf("\n");
1756 }
1757 }
1758
1759
ast_case_statement(ast_case_label_list * labels)1760 ast_case_statement::ast_case_statement(ast_case_label_list *labels)
1761 {
1762 this->labels = labels;
1763 }
1764
1765
print(void) const1766 void ast_case_statement_list::print(void) const
1767 {
1768 foreach_list_typed(ast_node, ast, link, & this->cases) {
1769 ast->print();
1770 }
1771 }
1772
1773
ast_case_statement_list(void)1774 ast_case_statement_list::ast_case_statement_list(void)
1775 {
1776 }
1777
1778
1779 void
print(void) const1780 ast_iteration_statement::print(void) const
1781 {
1782 switch (mode) {
1783 case ast_for:
1784 printf("for( ");
1785 if (init_statement)
1786 init_statement->print();
1787 printf("; ");
1788
1789 if (condition)
1790 condition->print();
1791 printf("; ");
1792
1793 if (rest_expression)
1794 rest_expression->print();
1795 printf(") ");
1796
1797 body->print();
1798 break;
1799
1800 case ast_while:
1801 printf("while ( ");
1802 if (condition)
1803 condition->print();
1804 printf(") ");
1805 body->print();
1806 break;
1807
1808 case ast_do_while:
1809 printf("do ");
1810 body->print();
1811 printf("while ( ");
1812 if (condition)
1813 condition->print();
1814 printf("); ");
1815 break;
1816 }
1817 }
1818
1819
ast_iteration_statement(int mode,ast_node * init,ast_node * condition,ast_expression * rest_expression,ast_node * body)1820 ast_iteration_statement::ast_iteration_statement(int mode,
1821 ast_node *init,
1822 ast_node *condition,
1823 ast_expression *rest_expression,
1824 ast_node *body)
1825 {
1826 this->mode = ast_iteration_modes(mode);
1827 this->init_statement = init;
1828 this->condition = condition;
1829 this->rest_expression = rest_expression;
1830 this->body = body;
1831 }
1832
1833
1834 void
print(void) const1835 ast_struct_specifier::print(void) const
1836 {
1837 printf("struct %s { ", name);
1838 foreach_list_typed(ast_node, ast, link, &this->declarations) {
1839 ast->print();
1840 }
1841 printf("} ");
1842 }
1843
1844
ast_struct_specifier(const char * identifier,ast_declarator_list * declarator_list)1845 ast_struct_specifier::ast_struct_specifier(const char *identifier,
1846 ast_declarator_list *declarator_list)
1847 : name(identifier), layout(NULL), declarations(), is_declaration(true),
1848 type(NULL)
1849 {
1850 this->declarations.push_degenerate_list_at_head(&declarator_list->link);
1851 }
1852
print(void) const1853 void ast_subroutine_list::print(void) const
1854 {
1855 foreach_list_typed (ast_node, ast, link, & this->declarations) {
1856 if (&ast->link != this->declarations.get_head())
1857 printf(", ");
1858 ast->print();
1859 }
1860 }
1861
1862 static void
set_shader_inout_layout(struct gl_shader * shader,struct _mesa_glsl_parse_state * state)1863 set_shader_inout_layout(struct gl_shader *shader,
1864 struct _mesa_glsl_parse_state *state)
1865 {
1866 /* Should have been prevented by the parser. */
1867 if (shader->Stage != MESA_SHADER_GEOMETRY &&
1868 shader->Stage != MESA_SHADER_TESS_EVAL &&
1869 shader->Stage != MESA_SHADER_COMPUTE) {
1870 assert(!state->in_qualifier->flags.i);
1871 }
1872
1873 if (shader->Stage != MESA_SHADER_COMPUTE) {
1874 /* Should have been prevented by the parser. */
1875 assert(!state->cs_input_local_size_specified);
1876 assert(!state->cs_input_local_size_variable_specified);
1877 assert(state->cs_derivative_group == DERIVATIVE_GROUP_NONE);
1878 }
1879
1880 if (shader->Stage != MESA_SHADER_FRAGMENT) {
1881 /* Should have been prevented by the parser. */
1882 assert(!state->fs_uses_gl_fragcoord);
1883 assert(!state->fs_redeclares_gl_fragcoord);
1884 assert(!state->fs_pixel_center_integer);
1885 assert(!state->fs_origin_upper_left);
1886 assert(!state->fs_early_fragment_tests);
1887 assert(!state->fs_inner_coverage);
1888 assert(!state->fs_post_depth_coverage);
1889 assert(!state->fs_pixel_interlock_ordered);
1890 assert(!state->fs_pixel_interlock_unordered);
1891 assert(!state->fs_sample_interlock_ordered);
1892 assert(!state->fs_sample_interlock_unordered);
1893 }
1894
1895 for (unsigned i = 0; i < MAX_FEEDBACK_BUFFERS; i++) {
1896 if (state->out_qualifier->out_xfb_stride[i]) {
1897 unsigned xfb_stride;
1898 if (state->out_qualifier->out_xfb_stride[i]->
1899 process_qualifier_constant(state, "xfb_stride", &xfb_stride,
1900 true)) {
1901 shader->TransformFeedbackBufferStride[i] = xfb_stride;
1902 }
1903 }
1904 }
1905
1906 switch (shader->Stage) {
1907 case MESA_SHADER_TESS_CTRL:
1908 shader->info.TessCtrl.VerticesOut = 0;
1909 if (state->tcs_output_vertices_specified) {
1910 unsigned vertices;
1911 if (state->out_qualifier->vertices->
1912 process_qualifier_constant(state, "vertices", &vertices,
1913 false)) {
1914
1915 YYLTYPE loc = state->out_qualifier->vertices->get_location();
1916 if (vertices > state->Const.MaxPatchVertices) {
1917 _mesa_glsl_error(&loc, state, "vertices (%d) exceeds "
1918 "GL_MAX_PATCH_VERTICES", vertices);
1919 }
1920 shader->info.TessCtrl.VerticesOut = vertices;
1921 }
1922 }
1923 break;
1924 case MESA_SHADER_TESS_EVAL:
1925 shader->OES_tessellation_point_size_enable = state->OES_tessellation_point_size_enable || state->EXT_tessellation_point_size_enable;
1926 shader->info.TessEval._PrimitiveMode = TESS_PRIMITIVE_UNSPECIFIED;
1927 if (state->in_qualifier->flags.q.prim_type) {
1928 switch (state->in_qualifier->prim_type) {
1929 case GL_TRIANGLES:
1930 shader->info.TessEval._PrimitiveMode = TESS_PRIMITIVE_TRIANGLES;
1931 break;
1932 case GL_QUADS:
1933 shader->info.TessEval._PrimitiveMode = TESS_PRIMITIVE_QUADS;
1934 break;
1935 case GL_ISOLINES:
1936 shader->info.TessEval._PrimitiveMode = TESS_PRIMITIVE_ISOLINES;
1937 break;
1938 }
1939 }
1940
1941 shader->info.TessEval.Spacing = TESS_SPACING_UNSPECIFIED;
1942 if (state->in_qualifier->flags.q.vertex_spacing)
1943 shader->info.TessEval.Spacing = state->in_qualifier->vertex_spacing;
1944
1945 shader->info.TessEval.VertexOrder = 0;
1946 if (state->in_qualifier->flags.q.ordering)
1947 shader->info.TessEval.VertexOrder = state->in_qualifier->ordering;
1948
1949 shader->info.TessEval.PointMode = -1;
1950 if (state->in_qualifier->flags.q.point_mode)
1951 shader->info.TessEval.PointMode = state->in_qualifier->point_mode;
1952 break;
1953 case MESA_SHADER_GEOMETRY:
1954 shader->OES_geometry_point_size_enable = state->OES_geometry_point_size_enable || state->EXT_geometry_point_size_enable;
1955 shader->info.Geom.VerticesOut = -1;
1956 if (state->out_qualifier->flags.q.max_vertices) {
1957 unsigned qual_max_vertices;
1958 if (state->out_qualifier->max_vertices->
1959 process_qualifier_constant(state, "max_vertices",
1960 &qual_max_vertices, true)) {
1961
1962 if (qual_max_vertices > state->Const.MaxGeometryOutputVertices) {
1963 YYLTYPE loc = state->out_qualifier->max_vertices->get_location();
1964 _mesa_glsl_error(&loc, state,
1965 "maximum output vertices (%d) exceeds "
1966 "GL_MAX_GEOMETRY_OUTPUT_VERTICES",
1967 qual_max_vertices);
1968 }
1969 shader->info.Geom.VerticesOut = qual_max_vertices;
1970 }
1971 }
1972
1973 if (state->gs_input_prim_type_specified) {
1974 shader->info.Geom.InputType =
1975 gl_to_mesa_prim(state->in_qualifier->prim_type);
1976 } else {
1977 shader->info.Geom.InputType = MESA_PRIM_UNKNOWN;
1978 }
1979
1980 if (state->out_qualifier->flags.q.prim_type) {
1981 shader->info.Geom.OutputType =
1982 gl_to_mesa_prim(state->out_qualifier->prim_type);
1983 } else {
1984 shader->info.Geom.OutputType = MESA_PRIM_UNKNOWN;
1985 }
1986
1987 shader->info.Geom.Invocations = 0;
1988 if (state->in_qualifier->flags.q.invocations) {
1989 unsigned invocations;
1990 if (state->in_qualifier->invocations->
1991 process_qualifier_constant(state, "invocations",
1992 &invocations, false)) {
1993
1994 YYLTYPE loc = state->in_qualifier->invocations->get_location();
1995 if (invocations > state->Const.MaxGeometryShaderInvocations) {
1996 _mesa_glsl_error(&loc, state,
1997 "invocations (%d) exceeds "
1998 "GL_MAX_GEOMETRY_SHADER_INVOCATIONS",
1999 invocations);
2000 }
2001 shader->info.Geom.Invocations = invocations;
2002 }
2003 }
2004 break;
2005
2006 case MESA_SHADER_COMPUTE:
2007 if (state->cs_input_local_size_specified) {
2008 for (int i = 0; i < 3; i++)
2009 shader->info.Comp.LocalSize[i] = state->cs_input_local_size[i];
2010 } else {
2011 for (int i = 0; i < 3; i++)
2012 shader->info.Comp.LocalSize[i] = 0;
2013 }
2014
2015 shader->info.Comp.LocalSizeVariable =
2016 state->cs_input_local_size_variable_specified;
2017
2018 shader->info.Comp.DerivativeGroup = state->cs_derivative_group;
2019
2020 if (state->NV_compute_shader_derivatives_enable) {
2021 /* We allow multiple cs_input_layout nodes, but do not store them in
2022 * a convenient place, so for now live with an empty location error.
2023 */
2024 YYLTYPE loc = {0};
2025 if (shader->info.Comp.DerivativeGroup == DERIVATIVE_GROUP_QUADS) {
2026 if (shader->info.Comp.LocalSize[0] % 2 != 0) {
2027 _mesa_glsl_error(&loc, state, "derivative_group_quadsNV must be used with a "
2028 "local group size whose first dimension "
2029 "is a multiple of 2\n");
2030 }
2031 if (shader->info.Comp.LocalSize[1] % 2 != 0) {
2032 _mesa_glsl_error(&loc, state, "derivative_group_quadsNV must be used with a "
2033 "local group size whose second dimension "
2034 "is a multiple of 2\n");
2035 }
2036 } else if (shader->info.Comp.DerivativeGroup == DERIVATIVE_GROUP_LINEAR) {
2037 if ((shader->info.Comp.LocalSize[0] *
2038 shader->info.Comp.LocalSize[1] *
2039 shader->info.Comp.LocalSize[2]) % 4 != 0) {
2040 _mesa_glsl_error(&loc, state, "derivative_group_linearNV must be used with a "
2041 "local group size whose total number of invocations "
2042 "is a multiple of 4\n");
2043 }
2044 }
2045 }
2046
2047 break;
2048
2049 case MESA_SHADER_FRAGMENT:
2050 shader->redeclares_gl_fragcoord = state->fs_redeclares_gl_fragcoord;
2051 shader->uses_gl_fragcoord = state->fs_uses_gl_fragcoord;
2052 shader->pixel_center_integer = state->fs_pixel_center_integer;
2053 shader->origin_upper_left = state->fs_origin_upper_left;
2054 shader->ARB_fragment_coord_conventions_enable =
2055 state->ARB_fragment_coord_conventions_enable;
2056 shader->EarlyFragmentTests = state->fs_early_fragment_tests;
2057 shader->InnerCoverage = state->fs_inner_coverage;
2058 shader->PostDepthCoverage = state->fs_post_depth_coverage;
2059 shader->PixelInterlockOrdered = state->fs_pixel_interlock_ordered;
2060 shader->PixelInterlockUnordered = state->fs_pixel_interlock_unordered;
2061 shader->SampleInterlockOrdered = state->fs_sample_interlock_ordered;
2062 shader->SampleInterlockUnordered = state->fs_sample_interlock_unordered;
2063 shader->BlendSupport = state->fs_blend_support;
2064 break;
2065
2066 default:
2067 /* Nothing to do. */
2068 break;
2069 }
2070
2071 shader->bindless_sampler = state->bindless_sampler_specified;
2072 shader->bindless_image = state->bindless_image_specified;
2073 shader->bound_sampler = state->bound_sampler_specified;
2074 shader->bound_image = state->bound_image_specified;
2075 shader->redeclares_gl_layer = state->redeclares_gl_layer;
2076 shader->layer_viewport_relative = state->layer_viewport_relative;
2077 }
2078
2079 /* src can be NULL if only the symbols found in the exec_list should be
2080 * copied
2081 */
2082 void
_mesa_glsl_copy_symbols_from_table(struct exec_list * shader_ir,struct glsl_symbol_table * src,struct glsl_symbol_table * dest)2083 _mesa_glsl_copy_symbols_from_table(struct exec_list *shader_ir,
2084 struct glsl_symbol_table *src,
2085 struct glsl_symbol_table *dest)
2086 {
2087 foreach_in_list (ir_instruction, ir, shader_ir) {
2088 switch (ir->ir_type) {
2089 case ir_type_function:
2090 dest->add_function((ir_function *) ir);
2091 break;
2092 case ir_type_variable: {
2093 ir_variable *const var = (ir_variable *) ir;
2094
2095 if (var->data.mode != ir_var_temporary)
2096 dest->add_variable(var);
2097 break;
2098 }
2099 default:
2100 break;
2101 }
2102 }
2103
2104 if (src != NULL) {
2105 /* Explicitly copy the gl_PerVertex interface definitions because these
2106 * are needed to check they are the same during the interstage link.
2107 * They can’t necessarily be found via the exec_list because the members
2108 * might not be referenced. The GL spec still requires that they match
2109 * in that case.
2110 */
2111 const glsl_type *iface =
2112 src->get_interface("gl_PerVertex", ir_var_shader_in);
2113 if (iface)
2114 dest->add_interface(glsl_get_type_name(iface), iface, ir_var_shader_in);
2115
2116 iface = src->get_interface("gl_PerVertex", ir_var_shader_out);
2117 if (iface)
2118 dest->add_interface(glsl_get_type_name(iface), iface, ir_var_shader_out);
2119 }
2120 }
2121
2122 extern "C" {
2123
2124 static void
assign_subroutine_indexes(struct _mesa_glsl_parse_state * state)2125 assign_subroutine_indexes(struct _mesa_glsl_parse_state *state)
2126 {
2127 int j, k;
2128 int index = 0;
2129
2130 for (j = 0; j < state->num_subroutines; j++) {
2131 while (state->subroutines[j]->subroutine_index == -1) {
2132 for (k = 0; k < state->num_subroutines; k++) {
2133 if (state->subroutines[k]->subroutine_index == index)
2134 break;
2135 else if (k == state->num_subroutines - 1) {
2136 state->subroutines[j]->subroutine_index = index;
2137 }
2138 }
2139 index++;
2140 }
2141 }
2142 }
2143
2144 static void
add_builtin_defines(struct _mesa_glsl_parse_state * state,void (* add_builtin_define)(struct glcpp_parser *,const char *,int),struct glcpp_parser * data,unsigned version,bool es)2145 add_builtin_defines(struct _mesa_glsl_parse_state *state,
2146 void (*add_builtin_define)(struct glcpp_parser *, const char *, int),
2147 struct glcpp_parser *data,
2148 unsigned version,
2149 bool es)
2150 {
2151 unsigned gl_version = state->exts->Version;
2152 gl_api api = state->api;
2153
2154 if (gl_version != 0xff) {
2155 unsigned i;
2156 for (i = 0; i < state->num_supported_versions; i++) {
2157 if (state->supported_versions[i].ver == version &&
2158 state->supported_versions[i].es == es) {
2159 gl_version = state->supported_versions[i].gl_ver;
2160 break;
2161 }
2162 }
2163
2164 if (i == state->num_supported_versions)
2165 return;
2166 }
2167
2168 if (es)
2169 api = API_OPENGLES2;
2170
2171 for (unsigned i = 0;
2172 i < ARRAY_SIZE(_mesa_glsl_supported_extensions); ++i) {
2173 const _mesa_glsl_extension *extension
2174 = &_mesa_glsl_supported_extensions[i];
2175 if (extension->compatible_with_state(state, api, gl_version)) {
2176 add_builtin_define(data, extension->name, 1);
2177 }
2178 }
2179 }
2180
2181 /* Implements parsing checks that we can't do during parsing */
2182 static void
do_late_parsing_checks(struct _mesa_glsl_parse_state * state)2183 do_late_parsing_checks(struct _mesa_glsl_parse_state *state)
2184 {
2185 if (state->stage == MESA_SHADER_COMPUTE && !state->has_compute_shader()) {
2186 YYLTYPE loc;
2187 memset(&loc, 0, sizeof(loc));
2188 _mesa_glsl_error(&loc, state, "Compute shaders require "
2189 "GLSL 4.30 or GLSL ES 3.10");
2190 }
2191 }
2192
2193 static void
opt_shader_and_create_symbol_table(const struct gl_constants * consts,const struct gl_extensions * exts,struct glsl_symbol_table * source_symbols,struct gl_shader * shader)2194 opt_shader_and_create_symbol_table(const struct gl_constants *consts,
2195 const struct gl_extensions *exts,
2196 struct glsl_symbol_table *source_symbols,
2197 struct gl_shader *shader)
2198 {
2199 assert(shader->CompileStatus != COMPILE_FAILURE &&
2200 !shader->ir->is_empty());
2201
2202 const struct gl_shader_compiler_options *options =
2203 &consts->ShaderCompilerOptions[shader->Stage];
2204
2205 /* Do some optimization at compile time to reduce shader IR size
2206 * and reduce later work if the same shader is linked multiple times.
2207 *
2208 * Run it just once, since NIR will do the real optimization.
2209 */
2210 do_common_optimization(shader->ir, false, options, consts->NativeIntegers);
2211
2212 validate_ir_tree(shader->ir);
2213
2214 enum ir_variable_mode other;
2215 switch (shader->Stage) {
2216 case MESA_SHADER_VERTEX:
2217 other = ir_var_shader_in;
2218 break;
2219 case MESA_SHADER_FRAGMENT:
2220 other = ir_var_shader_out;
2221 break;
2222 default:
2223 /* Something invalid to ensure optimize_dead_builtin_uniforms
2224 * doesn't remove anything other than uniforms or constants.
2225 */
2226 other = ir_var_mode_count;
2227 break;
2228 }
2229
2230 optimize_dead_builtin_variables(shader->ir, other);
2231
2232 lower_vector_derefs(shader);
2233
2234 lower_packing_builtins(shader->ir, exts->ARB_shading_language_packing,
2235 exts->ARB_gpu_shader5,
2236 consts->GLSLHasHalfFloatPacking);
2237 do_mat_op_to_vec(shader->ir);
2238
2239 lower_instructions(shader->ir, exts->ARB_gpu_shader5);
2240
2241 do_vec_index_to_cond_assign(shader->ir);
2242
2243 validate_ir_tree(shader->ir);
2244
2245 /* Retain any live IR, but trash the rest. */
2246 reparent_ir(shader->ir, shader->ir);
2247
2248 /* Destroy the symbol table. Create a new symbol table that contains only
2249 * the variables and functions that still exist in the IR. The symbol
2250 * table will be used later during linking.
2251 *
2252 * There must NOT be any freed objects still referenced by the symbol
2253 * table. That could cause the linker to dereference freed memory.
2254 *
2255 * We don't have to worry about types or interface-types here because those
2256 * are fly-weights that are looked up by glsl_type.
2257 */
2258 _mesa_glsl_copy_symbols_from_table(shader->ir, source_symbols,
2259 shader->symbols);
2260 }
2261
2262 static bool
can_skip_compile(struct gl_context * ctx,struct gl_shader * shader,const char * source,const uint8_t source_sha1[SHA1_DIGEST_LENGTH],bool force_recompile,bool source_has_shader_include)2263 can_skip_compile(struct gl_context *ctx, struct gl_shader *shader,
2264 const char *source,
2265 const uint8_t source_sha1[SHA1_DIGEST_LENGTH],
2266 bool force_recompile, bool source_has_shader_include)
2267 {
2268 if (!force_recompile) {
2269 if (ctx->Cache) {
2270 char buf[41];
2271 disk_cache_compute_key(ctx->Cache, source, strlen(source),
2272 shader->disk_cache_sha1);
2273 if (disk_cache_has_key(ctx->Cache, shader->disk_cache_sha1)) {
2274 /* We've seen this shader before and know it compiles */
2275 if (ctx->_Shader->Flags & GLSL_CACHE_INFO) {
2276 _mesa_sha1_format(buf, shader->disk_cache_sha1);
2277 fprintf(stderr, "deferring compile of shader: %s\n", buf);
2278 }
2279 shader->CompileStatus = COMPILE_SKIPPED;
2280
2281 free((void *)shader->FallbackSource);
2282
2283 /* Copy pre-processed shader include to fallback source otherwise
2284 * we have no guarantee the shader include source tree has not
2285 * changed.
2286 */
2287 if (source_has_shader_include) {
2288 shader->FallbackSource = strdup(source);
2289 memcpy(shader->fallback_source_sha1, source_sha1,
2290 SHA1_DIGEST_LENGTH);
2291 } else {
2292 shader->FallbackSource = NULL;
2293 }
2294 memcpy(shader->compiled_source_sha1, source_sha1,
2295 SHA1_DIGEST_LENGTH);
2296 return true;
2297 }
2298 }
2299 } else {
2300 /* We should only ever end up here if a re-compile has been forced by a
2301 * shader cache miss. In which case we can skip the compile if its
2302 * already been done by a previous fallback or the initial compile call.
2303 */
2304 if (shader->CompileStatus == COMPILE_SUCCESS)
2305 return true;
2306 }
2307
2308 return false;
2309 }
2310
2311 void
_mesa_glsl_compile_shader(struct gl_context * ctx,struct gl_shader * shader,bool dump_ast,bool dump_hir,bool force_recompile)2312 _mesa_glsl_compile_shader(struct gl_context *ctx, struct gl_shader *shader,
2313 bool dump_ast, bool dump_hir, bool force_recompile)
2314 {
2315 const char *source;
2316 const uint8_t *source_sha1;
2317
2318 if (force_recompile && shader->FallbackSource) {
2319 source = shader->FallbackSource;
2320 source_sha1 = shader->fallback_source_sha1;
2321 } else {
2322 source = shader->Source;
2323 source_sha1 = shader->source_sha1;
2324 }
2325
2326 /* Note this will be true for shaders the have #include inside comments
2327 * however that should be rare enough not to worry about.
2328 */
2329 bool source_has_shader_include =
2330 strstr(source, "#include") == NULL ? false : true;
2331
2332 /* If there was no shader include we can check the shader cache and skip
2333 * compilation before we run the preprocessor. We never skip compiling
2334 * shaders that use ARB_shading_language_include because we would need to
2335 * keep duplicate copies of the shader include source tree and paths.
2336 */
2337 if (!source_has_shader_include &&
2338 can_skip_compile(ctx, shader, source, source_sha1, force_recompile,
2339 false))
2340 return;
2341
2342 struct _mesa_glsl_parse_state *state =
2343 new(shader) _mesa_glsl_parse_state(ctx, shader->Stage, shader);
2344
2345 if (ctx->Const.GenerateTemporaryNames)
2346 (void) p_atomic_cmpxchg(&ir_variable::temporaries_allocate_names,
2347 false, true);
2348
2349 if (!source_has_shader_include || !force_recompile) {
2350 state->error = glcpp_preprocess(state, &source, &state->info_log,
2351 add_builtin_defines, state, ctx);
2352 }
2353
2354 /* Now that we have run the preprocessor we can check the shader cache and
2355 * skip compilation if possible for those shaders that contained a shader
2356 * include.
2357 */
2358 if (source_has_shader_include &&
2359 can_skip_compile(ctx, shader, source, source_sha1, force_recompile,
2360 true))
2361 return;
2362
2363 if (!state->error) {
2364 _mesa_glsl_lexer_ctor(state, source);
2365 _mesa_glsl_parse(state);
2366 _mesa_glsl_lexer_dtor(state);
2367 do_late_parsing_checks(state);
2368 }
2369
2370 if (dump_ast) {
2371 foreach_list_typed(ast_node, ast, link, &state->translation_unit) {
2372 ast->print();
2373 }
2374 printf("\n\n");
2375 }
2376
2377 ralloc_free(shader->ir);
2378 shader->ir = new(shader) exec_list;
2379 if (!state->error && !state->translation_unit.is_empty())
2380 _mesa_ast_to_hir(shader->ir, state);
2381
2382 if (!state->error) {
2383 validate_ir_tree(shader->ir);
2384
2385 /* Print out the unoptimized IR. */
2386 if (dump_hir) {
2387 _mesa_print_ir(stdout, shader->ir, state);
2388 }
2389 }
2390
2391 if (shader->InfoLog)
2392 ralloc_free(shader->InfoLog);
2393
2394 if (!state->error)
2395 set_shader_inout_layout(shader, state);
2396
2397 shader->symbols = new(shader->ir) glsl_symbol_table;
2398 shader->CompileStatus = state->error ? COMPILE_FAILURE : COMPILE_SUCCESS;
2399 shader->InfoLog = state->info_log;
2400 shader->Version = state->language_version;
2401 shader->IsES = state->es_shader;
2402
2403 struct gl_shader_compiler_options *options =
2404 &ctx->Const.ShaderCompilerOptions[shader->Stage];
2405
2406 if (!state->error && !shader->ir->is_empty()) {
2407 if (state->es_shader &&
2408 (options->LowerPrecisionFloat16 || options->LowerPrecisionInt16))
2409 lower_precision(options, shader->ir);
2410 lower_builtins(shader->ir);
2411 assign_subroutine_indexes(state);
2412 lower_subroutine(shader->ir, state);
2413 opt_shader_and_create_symbol_table(&ctx->Const, &ctx->Extensions,
2414 state->symbols, shader);
2415 }
2416
2417 if (!force_recompile) {
2418 free((void *)shader->FallbackSource);
2419
2420 /* Copy pre-processed shader include to fallback source otherwise we
2421 * have no guarantee the shader include source tree has not changed.
2422 */
2423 if (source_has_shader_include) {
2424 shader->FallbackSource = strdup(source);
2425 memcpy(shader->fallback_source_sha1, source_sha1, SHA1_DIGEST_LENGTH);
2426 } else {
2427 shader->FallbackSource = NULL;
2428 }
2429 }
2430
2431 delete state->symbols;
2432 ralloc_free(state);
2433
2434 if (shader->CompileStatus == COMPILE_SUCCESS)
2435 memcpy(shader->compiled_source_sha1, source_sha1, SHA1_DIGEST_LENGTH);
2436
2437 if (ctx->Cache && shader->CompileStatus == COMPILE_SUCCESS) {
2438 char sha1_buf[41];
2439 disk_cache_put_key(ctx->Cache, shader->disk_cache_sha1);
2440 if (ctx->_Shader->Flags & GLSL_CACHE_INFO) {
2441 _mesa_sha1_format(sha1_buf, shader->disk_cache_sha1);
2442 fprintf(stderr, "marking shader: %s\n", sha1_buf);
2443 }
2444 }
2445 }
2446
2447 } /* extern "C" */
2448 /**
2449 * Do the set of common optimizations passes
2450 *
2451 * \param ir List of instructions to be optimized
2452 * \param linked Is the shader linked? This enables
2453 * optimizations passes that remove code at
2454 * global scope and could cause linking to
2455 * fail.
2456 * \param uniform_locations_assigned Have locations already been assigned for
2457 * uniforms? This prevents the declarations
2458 * of unused uniforms from being removed.
2459 * The setting of this flag only matters if
2460 * \c linked is \c true.
2461 * \param options The driver's preferred shader options.
2462 * \param native_integers Selects optimizations that depend on the
2463 * implementations supporting integers
2464 * natively (as opposed to supporting
2465 * integers in floating point registers).
2466 */
2467 bool
do_common_optimization(exec_list * ir,bool linked,const struct gl_shader_compiler_options * options,bool native_integers)2468 do_common_optimization(exec_list *ir, bool linked,
2469 const struct gl_shader_compiler_options *options,
2470 bool native_integers)
2471 {
2472 const bool debug = false;
2473 bool progress = false;
2474
2475 #define OPT(PASS, ...) do { \
2476 if (debug) { \
2477 fprintf(stderr, "START GLSL optimization %s\n", #PASS); \
2478 const bool opt_progress = PASS(__VA_ARGS__); \
2479 progress = opt_progress || progress; \
2480 if (opt_progress) \
2481 _mesa_print_ir(stderr, ir, NULL); \
2482 fprintf(stderr, "GLSL optimization %s: %s progress\n", \
2483 #PASS, opt_progress ? "made" : "no"); \
2484 } else { \
2485 progress = PASS(__VA_ARGS__) || progress; \
2486 } \
2487 } while (false)
2488
2489 if (linked) {
2490 OPT(do_function_inlining, ir);
2491 OPT(do_dead_functions, ir);
2492 }
2493 OPT(propagate_invariance, ir);
2494 OPT(do_if_simplification, ir);
2495 OPT(opt_flatten_nested_if_blocks, ir);
2496
2497 if (options->OptimizeForAOS && !linked)
2498 OPT(opt_flip_matrices, ir);
2499
2500 OPT(do_dead_code_unlinked, ir);
2501 OPT(do_dead_code_local, ir);
2502 OPT(do_tree_grafting, ir);
2503 OPT(do_minmax_prune, ir);
2504 OPT(do_rebalance_tree, ir);
2505 OPT(do_algebraic, ir, native_integers, options);
2506 OPT(do_lower_jumps, ir, true, true, options->EmitNoMainReturn,
2507 options->EmitNoCont);
2508
2509 /* If an optimization pass fails to preserve the invariant flag, calling
2510 * the pass only once earlier may result in incorrect code generation. Always call
2511 * propagate_invariance() last to avoid this possibility.
2512 */
2513 OPT(propagate_invariance, ir);
2514
2515 #undef OPT
2516
2517 return progress;
2518 }
2519