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214 lines
8.3 KiB
C++
214 lines
8.3 KiB
C++
//
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// Copyright (C) 2014-2016 LunarG, Inc.
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// Copyright (C) 2018 Google, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Call into SPIRV-Tools to disassemble, validate, and optimize.
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//
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#if ENABLE_OPT
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#include <cstdio>
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#include <iostream>
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#include "SpvTools.h"
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#include "spirv-tools/optimizer.hpp"
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#include "spirv-tools/libspirv.h"
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namespace glslang {
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// Translate glslang's view of target versioning to what SPIRV-Tools uses.
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spv_target_env MapToSpirvToolsEnv(const SpvVersion& spvVersion, spv::SpvBuildLogger* logger)
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{
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switch (spvVersion.vulkan) {
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case glslang::EShTargetVulkan_1_0:
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return spv_target_env::SPV_ENV_VULKAN_1_0;
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case glslang::EShTargetVulkan_1_1:
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switch (spvVersion.spv) {
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case EShTargetSpv_1_0:
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case EShTargetSpv_1_1:
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case EShTargetSpv_1_2:
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case EShTargetSpv_1_3:
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return spv_target_env::SPV_ENV_VULKAN_1_1;
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case EShTargetSpv_1_4:
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return spv_target_env::SPV_ENV_VULKAN_1_1_SPIRV_1_4;
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default:
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logger->missingFunctionality("Target version for SPIRV-Tools validator");
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return spv_target_env::SPV_ENV_VULKAN_1_1;
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}
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default:
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break;
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}
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if (spvVersion.openGl > 0)
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return spv_target_env::SPV_ENV_OPENGL_4_5;
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logger->missingFunctionality("Target version for SPIRV-Tools validator");
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return spv_target_env::SPV_ENV_UNIVERSAL_1_0;
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}
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// Use the SPIRV-Tools disassembler to print SPIR-V.
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void SpirvToolsDisassemble(std::ostream& out, const std::vector<unsigned int>& spirv)
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{
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// disassemble
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spv_context context = spvContextCreate(SPV_ENV_UNIVERSAL_1_3);
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spv_text text;
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spv_diagnostic diagnostic = nullptr;
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spvBinaryToText(context, spirv.data(), spirv.size(),
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SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES | SPV_BINARY_TO_TEXT_OPTION_INDENT,
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&text, &diagnostic);
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// dump
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if (diagnostic == nullptr)
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out << text->str;
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else
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spvDiagnosticPrint(diagnostic);
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// teardown
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spvDiagnosticDestroy(diagnostic);
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spvContextDestroy(context);
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}
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// Apply the SPIRV-Tools validator to generated SPIR-V.
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void SpirvToolsValidate(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
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spv::SpvBuildLogger* logger, bool prelegalization)
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{
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// validate
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spv_context context = spvContextCreate(MapToSpirvToolsEnv(intermediate.getSpv(), logger));
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spv_const_binary_t binary = { spirv.data(), spirv.size() };
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spv_diagnostic diagnostic = nullptr;
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spv_validator_options options = spvValidatorOptionsCreate();
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spvValidatorOptionsSetRelaxBlockLayout(options, intermediate.usingHlslOffsets());
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spvValidatorOptionsSetBeforeHlslLegalization(options, prelegalization);
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spvValidateWithOptions(context, options, &binary, &diagnostic);
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// report
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if (diagnostic != nullptr) {
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logger->error("SPIRV-Tools Validation Errors");
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logger->error(diagnostic->error);
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}
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// tear down
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spvValidatorOptionsDestroy(options);
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spvDiagnosticDestroy(diagnostic);
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spvContextDestroy(context);
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}
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// Apply the SPIRV-Tools optimizer to generated SPIR-V, for the purpose of
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// legalizing HLSL SPIR-V.
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void SpirvToolsLegalize(const glslang::TIntermediate&, std::vector<unsigned int>& spirv,
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spv::SpvBuildLogger*, const SpvOptions* options)
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{
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spv_target_env target_env = SPV_ENV_UNIVERSAL_1_2;
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spvtools::Optimizer optimizer(target_env);
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optimizer.SetMessageConsumer(
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[](spv_message_level_t level, const char *source, const spv_position_t &position, const char *message) {
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auto &out = std::cerr;
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switch (level)
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{
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case SPV_MSG_FATAL:
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case SPV_MSG_INTERNAL_ERROR:
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case SPV_MSG_ERROR:
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out << "error: ";
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break;
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case SPV_MSG_WARNING:
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out << "warning: ";
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break;
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case SPV_MSG_INFO:
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case SPV_MSG_DEBUG:
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out << "info: ";
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break;
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default:
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break;
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}
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if (source)
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{
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out << source << ":";
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}
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out << position.line << ":" << position.column << ":" << position.index << ":";
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if (message)
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{
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out << " " << message;
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}
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out << std::endl;
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});
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// If debug (specifically source line info) is being generated, propagate
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// line information into all SPIR-V instructions. This avoids loss of
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// information when instructions are deleted or moved. Later, remove
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// redundant information to minimize final SPRIR-V size.
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if (options->generateDebugInfo) {
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optimizer.RegisterPass(spvtools::CreatePropagateLineInfoPass());
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}
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optimizer.RegisterPass(spvtools::CreateWrapOpKillPass());
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optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
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optimizer.RegisterPass(spvtools::CreateMergeReturnPass());
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optimizer.RegisterPass(spvtools::CreateInlineExhaustivePass());
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optimizer.RegisterPass(spvtools::CreateEliminateDeadFunctionsPass());
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optimizer.RegisterPass(spvtools::CreateScalarReplacementPass());
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optimizer.RegisterPass(spvtools::CreateLocalAccessChainConvertPass());
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optimizer.RegisterPass(spvtools::CreateLocalSingleBlockLoadStoreElimPass());
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optimizer.RegisterPass(spvtools::CreateLocalSingleStoreElimPass());
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optimizer.RegisterPass(spvtools::CreateSimplificationPass());
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optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
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optimizer.RegisterPass(spvtools::CreateVectorDCEPass());
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optimizer.RegisterPass(spvtools::CreateDeadInsertElimPass());
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optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
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optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
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optimizer.RegisterPass(spvtools::CreateBlockMergePass());
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optimizer.RegisterPass(spvtools::CreateLocalMultiStoreElimPass());
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optimizer.RegisterPass(spvtools::CreateIfConversionPass());
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optimizer.RegisterPass(spvtools::CreateSimplificationPass());
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optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
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optimizer.RegisterPass(spvtools::CreateVectorDCEPass());
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optimizer.RegisterPass(spvtools::CreateDeadInsertElimPass());
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if (options->optimizeSize) {
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optimizer.RegisterPass(spvtools::CreateRedundancyEliminationPass());
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}
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optimizer.RegisterPass(spvtools::CreateAggressiveDCEPass());
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optimizer.RegisterPass(spvtools::CreateCFGCleanupPass());
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if (options->generateDebugInfo) {
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optimizer.RegisterPass(spvtools::CreateRedundantLineInfoElimPass());
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}
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spvtools::OptimizerOptions spvOptOptions;
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spvOptOptions.set_run_validator(false); // The validator may run as a seperate step later on
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optimizer.Run(spirv.data(), spirv.size(), &spirv, spvOptOptions);
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}
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}; // end namespace glslang
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#endif
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