2 // Copyright (C) 2014-2016 LunarG, Inc.
3 // Copyright (C) 2018 Google, Inc.
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34 // POSSIBILITY OF SUCH DAMAGE.
37 // Call into SPIRV-Tools to disassemble, validate, and optimize.
46 #include "spirv-tools/optimizer.hpp"
47 #include "spirv-tools/libspirv.h"
51 // Translate glslang's view of target versioning to what SPIRV-Tools uses.
52 spv_target_env MapToSpirvToolsEnv(const SpvVersion& spvVersion, spv::SpvBuildLogger* logger)
54 switch (spvVersion.vulkan) {
55 case glslang::EShTargetVulkan_1_0:
56 return spv_target_env::SPV_ENV_VULKAN_1_0;
57 case glslang::EShTargetVulkan_1_1:
58 switch (spvVersion.spv) {
59 case EShTargetSpv_1_0:
60 case EShTargetSpv_1_1:
61 case EShTargetSpv_1_2:
62 case EShTargetSpv_1_3:
63 return spv_target_env::SPV_ENV_VULKAN_1_1;
64 case EShTargetSpv_1_4:
65 return spv_target_env::SPV_ENV_VULKAN_1_1_SPIRV_1_4;
67 logger->missingFunctionality("Target version for SPIRV-Tools validator");
68 return spv_target_env::SPV_ENV_VULKAN_1_1;
70 case glslang::EShTargetVulkan_1_2:
71 return spv_target_env::SPV_ENV_VULKAN_1_2;
76 if (spvVersion.openGl > 0)
77 return spv_target_env::SPV_ENV_OPENGL_4_5;
79 logger->missingFunctionality("Target version for SPIRV-Tools validator");
80 return spv_target_env::SPV_ENV_UNIVERSAL_1_0;
84 // Use the SPIRV-Tools disassembler to print SPIR-V.
85 void SpirvToolsDisassemble(std::ostream& out, const std::vector<unsigned int>& spirv)
88 spv_context context = spvContextCreate(SPV_ENV_UNIVERSAL_1_3);
90 spv_diagnostic diagnostic = nullptr;
91 spvBinaryToText(context, spirv.data(), spirv.size(),
92 SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES | SPV_BINARY_TO_TEXT_OPTION_INDENT,
96 if (diagnostic == nullptr)
99 spvDiagnosticPrint(diagnostic);
102 spvDiagnosticDestroy(diagnostic);
103 spvContextDestroy(context);
106 // Apply the SPIRV-Tools validator to generated SPIR-V.
107 void SpirvToolsValidate(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
108 spv::SpvBuildLogger* logger, bool prelegalization)
111 spv_context context = spvContextCreate(MapToSpirvToolsEnv(intermediate.getSpv(), logger));
112 spv_const_binary_t binary = { spirv.data(), spirv.size() };
113 spv_diagnostic diagnostic = nullptr;
114 spv_validator_options options = spvValidatorOptionsCreate();
115 spvValidatorOptionsSetRelaxBlockLayout(options, intermediate.usingHlslOffsets());
116 spvValidatorOptionsSetBeforeHlslLegalization(options, prelegalization);
117 spvValidateWithOptions(context, options, &binary, &diagnostic);
120 if (diagnostic != nullptr) {
121 logger->error("SPIRV-Tools Validation Errors");
122 logger->error(diagnostic->error);
126 spvValidatorOptionsDestroy(options);
127 spvDiagnosticDestroy(diagnostic);
128 spvContextDestroy(context);
131 // Apply the SPIRV-Tools optimizer to generated SPIR-V, for the purpose of
132 // legalizing HLSL SPIR-V.
133 void SpirvToolsLegalize(const glslang::TIntermediate&, std::vector<unsigned int>& spirv,
134 spv::SpvBuildLogger*, const SpvOptions* options)
136 spv_target_env target_env = SPV_ENV_UNIVERSAL_1_2;
138 spvtools::Optimizer optimizer(target_env);
139 optimizer.SetMessageConsumer(
140 [](spv_message_level_t level, const char *source, const spv_position_t &position, const char *message) {
141 auto &out = std::cerr;
145 case SPV_MSG_INTERNAL_ERROR:
149 case SPV_MSG_WARNING:
161 out << source << ":";
163 out << position.line << ":" << position.column << ":" << position.index << ":";
166 out << " " << message;
171 // If debug (specifically source line info) is being generated, propagate
172 // line information into all SPIR-V instructions. This avoids loss of
173 // information when instructions are deleted or moved. Later, remove
174 // redundant information to minimize final SPRIR-V size.
175 if (options->generateDebugInfo) {
176 optimizer.RegisterPass(spvtools::CreatePropagateLineInfoPass());
178 optimizer.RegisterPass(spvtools::CreateWrapOpKillPass());
179 optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
180 optimizer.RegisterPass(spvtools::CreateMergeReturnPass());
181 optimizer.RegisterPass(spvtools::CreateInlineExhaustivePass());
182 optimizer.RegisterPass(spvtools::CreateEliminateDeadFunctionsPass());
183 optimizer.RegisterPass(spvtools::CreateScalarReplacementPass());
184 optimizer.RegisterPass(spvtools::CreateLocalAccessChainConvertPass());
185 optimizer.RegisterPass(spvtools::CreateLocalSingleBlockLoadStoreElimPass());
186 optimizer.RegisterPass(spvtools::CreateLocalSingleStoreElimPass());
187 optimizer.RegisterPass(spvtools::CreateSimplificationPass());
188 optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
189 optimizer.RegisterPass(spvtools::CreateVectorDCEPass());
190 optimizer.RegisterPass(spvtools::CreateDeadInsertElimPass());
191 optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
192 optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
193 optimizer.RegisterPass(spvtools::CreateBlockMergePass());
194 optimizer.RegisterPass(spvtools::CreateLocalMultiStoreElimPass());
195 optimizer.RegisterPass(spvtools::CreateIfConversionPass());
196 optimizer.RegisterPass(spvtools::CreateSimplificationPass());
197 optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
198 optimizer.RegisterPass(spvtools::CreateVectorDCEPass());
199 optimizer.RegisterPass(spvtools::CreateDeadInsertElimPass());
200 if (options->optimizeSize) {
201 optimizer.RegisterPass(spvtools::CreateRedundancyEliminationPass());
203 optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
204 optimizer.RegisterPass(spvtools::CreateCFGCleanupPass());
205 if (options->generateDebugInfo) {
206 optimizer.RegisterPass(spvtools::CreateRedundantLineInfoElimPass());
209 spvtools::OptimizerOptions spvOptOptions;
210 spvOptOptions.set_run_validator(false); // The validator may run as a seperate step later on
211 optimizer.Run(spirv.data(), spirv.size(), &spirv, spvOptOptions);
214 }; // end namespace glslang