chromium/third_party/glslang/src/SPIRV/SpvTools.cpp

//
// Copyright (C) 2014-2016 LunarG, Inc.
// Copyright (C) 2018-2020 Google, Inc.
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

//
// Call into SPIRV-Tools to disassemble, validate, and optimize.
//

#if ENABLE_OPT

#include <cstdio>
#include <iostream>

#include "SpvTools.h"
#include "spirv-tools/optimizer.hpp"
#include "glslang/MachineIndependent/localintermediate.h"

namespace glslang {

// Translate glslang's view of target versioning to what SPIRV-Tools uses.
spv_target_env MapToSpirvToolsEnv(const SpvVersion& spvVersion, spv::SpvBuildLogger* logger)
{ … }

// Callback passed to spvtools::Optimizer::SetMessageConsumer
void OptimizerMesssageConsumer(spv_message_level_t level, const char *source,
        const spv_position_t &position, const char *message)
{ … }

// Use the SPIRV-Tools disassembler to print SPIR-V using a SPV_ENV_UNIVERSAL_1_3 environment.
void SpirvToolsDisassemble(std::ostream& out, const std::vector<unsigned int>& spirv)
{ … }

// Use the SPIRV-Tools disassembler to print SPIR-V with a provided SPIR-V environment.
void SpirvToolsDisassemble(std::ostream& out, const std::vector<unsigned int>& spirv,
                           spv_target_env requested_context)
{ … }

// Apply the SPIRV-Tools validator to generated SPIR-V.
void SpirvToolsValidate(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
                        spv::SpvBuildLogger* logger, bool prelegalization)
{ … }

// Apply the SPIRV-Tools optimizer to generated SPIR-V.  HLSL SPIR-V is legalized in the process.
void SpirvToolsTransform(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
                         spv::SpvBuildLogger* logger, const SpvOptions* options)
{ … }

bool SpirvToolsAnalyzeDeadOutputStores(spv_target_env target_env, std::vector<unsigned int>& spirv,
                                       std::unordered_set<uint32_t>* live_locs,
                                       std::unordered_set<uint32_t>* live_builtins,
                                       spv::SpvBuildLogger*)
{ … }

void SpirvToolsEliminateDeadOutputStores(spv_target_env target_env, std::vector<unsigned int>& spirv,
                                         std::unordered_set<uint32_t>* live_locs,
                                         std::unordered_set<uint32_t>* live_builtins,
                                         spv::SpvBuildLogger*)
{ … }

void SpirvToolsEliminateDeadInputComponents(spv_target_env target_env, std::vector<unsigned int>& spirv,
                                            spv::SpvBuildLogger*)
{ … }

// Apply the SPIRV-Tools optimizer to strip debug info from SPIR-V.  This is implicitly done by
// SpirvToolsTransform if spvOptions->stripDebugInfo is set, but can be called separately if
// optimization is disabled.
void SpirvToolsStripDebugInfo(const glslang::TIntermediate& intermediate,
        std::vector<unsigned int>& spirv, spv::SpvBuildLogger* logger)
{ … }

}; // end namespace glslang

#endif