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|
- //
- // Copyright (C) 2014-2016 LunarG, Inc.
- // Copyright (C) 2015-2016 Google, Inc.
- // Copyright (C) 2017 ARM Limited.
- //
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions
- // are met:
- //
- // Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- //
- // Redistributions in binary form must reproduce the above
- // copyright notice, this list of conditions and the following
- // disclaimer in the documentation and/or other materials provided
- // with the distribution.
- //
- // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
- // contributors may be used to endorse or promote products derived
- // from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- // 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.
- //
- // Visit the nodes in the glslang intermediate tree representation to
- // translate them to SPIR-V.
- //
- #include "spirv.hpp"
- #include "GlslangToSpv.h"
- #include "SpvBuilder.h"
- namespace spv {
- #include "GLSL.std.450.h"
- #include "GLSL.ext.KHR.h"
- #include "GLSL.ext.EXT.h"
- #ifdef AMD_EXTENSIONS
- #include "GLSL.ext.AMD.h"
- #endif
- #ifdef NV_EXTENSIONS
- #include "GLSL.ext.NV.h"
- #endif
- }
- #if ENABLE_OPT
- #include "spirv-tools/optimizer.hpp"
- #include "message.h"
- #endif
- #if ENABLE_OPT
- using namespace spvtools;
- #endif
- // Glslang includes
- #include "../glslang/MachineIndependent/localintermediate.h"
- #include "../glslang/MachineIndependent/SymbolTable.h"
- #include "../glslang/Include/Common.h"
- #include "../glslang/Include/revision.h"
- #include <fstream>
- #include <iomanip>
- #include <list>
- #include <map>
- #include <stack>
- #include <string>
- #include <vector>
- namespace {
- namespace {
- class SpecConstantOpModeGuard {
- public:
- SpecConstantOpModeGuard(spv::Builder* builder)
- : builder_(builder) {
- previous_flag_ = builder->isInSpecConstCodeGenMode();
- }
- ~SpecConstantOpModeGuard() {
- previous_flag_ ? builder_->setToSpecConstCodeGenMode()
- : builder_->setToNormalCodeGenMode();
- }
- void turnOnSpecConstantOpMode() {
- builder_->setToSpecConstCodeGenMode();
- }
- private:
- spv::Builder* builder_;
- bool previous_flag_;
- };
- struct OpDecorations {
- spv::Decoration precision;
- spv::Decoration noContraction;
- spv::Decoration nonUniform;
- };
- } // namespace
- //
- // The main holder of information for translating glslang to SPIR-V.
- //
- // Derives from the AST walking base class.
- //
- class TGlslangToSpvTraverser : public glslang::TIntermTraverser {
- public:
- TGlslangToSpvTraverser(unsigned int spvVersion, const glslang::TIntermediate*, spv::SpvBuildLogger* logger,
- glslang::SpvOptions& options);
- virtual ~TGlslangToSpvTraverser() { }
- bool visitAggregate(glslang::TVisit, glslang::TIntermAggregate*);
- bool visitBinary(glslang::TVisit, glslang::TIntermBinary*);
- void visitConstantUnion(glslang::TIntermConstantUnion*);
- bool visitSelection(glslang::TVisit, glslang::TIntermSelection*);
- bool visitSwitch(glslang::TVisit, glslang::TIntermSwitch*);
- void visitSymbol(glslang::TIntermSymbol* symbol);
- bool visitUnary(glslang::TVisit, glslang::TIntermUnary*);
- bool visitLoop(glslang::TVisit, glslang::TIntermLoop*);
- bool visitBranch(glslang::TVisit visit, glslang::TIntermBranch*);
- void finishSpv();
- void dumpSpv(std::vector<unsigned int>& out);
- protected:
- TGlslangToSpvTraverser(TGlslangToSpvTraverser&);
- TGlslangToSpvTraverser& operator=(TGlslangToSpvTraverser&);
- spv::Decoration TranslateInterpolationDecoration(const glslang::TQualifier& qualifier);
- spv::Decoration TranslateAuxiliaryStorageDecoration(const glslang::TQualifier& qualifier);
- spv::Decoration TranslateNonUniformDecoration(const glslang::TQualifier& qualifier);
- spv::BuiltIn TranslateBuiltInDecoration(glslang::TBuiltInVariable, bool memberDeclaration);
- spv::ImageFormat TranslateImageFormat(const glslang::TType& type);
- spv::SelectionControlMask TranslateSelectionControl(const glslang::TIntermSelection&) const;
- spv::SelectionControlMask TranslateSwitchControl(const glslang::TIntermSwitch&) const;
- spv::LoopControlMask TranslateLoopControl(const glslang::TIntermLoop&, unsigned int& dependencyLength) const;
- spv::StorageClass TranslateStorageClass(const glslang::TType&);
- void addIndirectionIndexCapabilities(const glslang::TType& baseType, const glslang::TType& indexType);
- spv::Id createSpvVariable(const glslang::TIntermSymbol*);
- spv::Id getSampledType(const glslang::TSampler&);
- spv::Id getInvertedSwizzleType(const glslang::TIntermTyped&);
- spv::Id createInvertedSwizzle(spv::Decoration precision, const glslang::TIntermTyped&, spv::Id parentResult);
- void convertSwizzle(const glslang::TIntermAggregate&, std::vector<unsigned>& swizzle);
- spv::Id convertGlslangToSpvType(const glslang::TType& type);
- spv::Id convertGlslangToSpvType(const glslang::TType& type, glslang::TLayoutPacking, const glslang::TQualifier&,
- bool lastBufferBlockMember);
- bool filterMember(const glslang::TType& member);
- spv::Id convertGlslangStructToSpvType(const glslang::TType&, const glslang::TTypeList* glslangStruct,
- glslang::TLayoutPacking, const glslang::TQualifier&);
- void decorateStructType(const glslang::TType&, const glslang::TTypeList* glslangStruct, glslang::TLayoutPacking,
- const glslang::TQualifier&, spv::Id);
- spv::Id makeArraySizeId(const glslang::TArraySizes&, int dim);
- spv::Id accessChainLoad(const glslang::TType& type);
- void accessChainStore(const glslang::TType& type, spv::Id rvalue);
- void multiTypeStore(const glslang::TType&, spv::Id rValue);
- glslang::TLayoutPacking getExplicitLayout(const glslang::TType& type) const;
- int getArrayStride(const glslang::TType& arrayType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
- int getMatrixStride(const glslang::TType& matrixType, glslang::TLayoutPacking, glslang::TLayoutMatrix);
- void updateMemberOffset(const glslang::TType& structType, const glslang::TType& memberType, int& currentOffset,
- int& nextOffset, glslang::TLayoutPacking, glslang::TLayoutMatrix);
- void declareUseOfStructMember(const glslang::TTypeList& members, int glslangMember);
- bool isShaderEntryPoint(const glslang::TIntermAggregate* node);
- bool writableParam(glslang::TStorageQualifier) const;
- bool originalParam(glslang::TStorageQualifier, const glslang::TType&, bool implicitThisParam);
- void makeFunctions(const glslang::TIntermSequence&);
- void makeGlobalInitializers(const glslang::TIntermSequence&);
- void visitFunctions(const glslang::TIntermSequence&);
- void handleFunctionEntry(const glslang::TIntermAggregate* node);
- void translateArguments(const glslang::TIntermAggregate& node, std::vector<spv::Id>& arguments);
- void translateArguments(glslang::TIntermUnary& node, std::vector<spv::Id>& arguments);
- spv::Id createImageTextureFunctionCall(glslang::TIntermOperator* node);
- spv::Id handleUserFunctionCall(const glslang::TIntermAggregate*);
- spv::Id createBinaryOperation(glslang::TOperator op, OpDecorations&, spv::Id typeId, spv::Id left, spv::Id right,
- glslang::TBasicType typeProxy, bool reduceComparison = true);
- spv::Id createBinaryMatrixOperation(spv::Op, OpDecorations&, spv::Id typeId, spv::Id left, spv::Id right);
- spv::Id createUnaryOperation(glslang::TOperator op, OpDecorations&, spv::Id typeId, spv::Id operand,
- glslang::TBasicType typeProxy);
- spv::Id createUnaryMatrixOperation(spv::Op op, OpDecorations&, spv::Id typeId, spv::Id operand,
- glslang::TBasicType typeProxy);
- spv::Id createConversion(glslang::TOperator op, OpDecorations&, spv::Id destTypeId, spv::Id operand,
- glslang::TBasicType typeProxy);
- spv::Id createIntWidthConversion(glslang::TOperator op, spv::Id operand, int vectorSize);
- spv::Id makeSmearedConstant(spv::Id constant, int vectorSize);
- spv::Id createAtomicOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy);
- spv::Id createInvocationsOperation(glslang::TOperator op, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy);
- spv::Id CreateInvocationsVectorOperation(spv::Op op, spv::GroupOperation groupOperation, spv::Id typeId, std::vector<spv::Id>& operands);
- spv::Id createSubgroupOperation(glslang::TOperator op, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy);
- spv::Id createMiscOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy);
- spv::Id createNoArgOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId);
- spv::Id getSymbolId(const glslang::TIntermSymbol* node);
- spv::Id createSpvConstant(const glslang::TIntermTyped&);
- spv::Id createSpvConstantFromConstUnionArray(const glslang::TType& type, const glslang::TConstUnionArray&, int& nextConst, bool specConstant);
- bool isTrivialLeaf(const glslang::TIntermTyped* node);
- bool isTrivial(const glslang::TIntermTyped* node);
- spv::Id createShortCircuit(glslang::TOperator, glslang::TIntermTyped& left, glslang::TIntermTyped& right);
- #ifdef AMD_EXTENSIONS
- spv::Id getExtBuiltins(const char* name);
- #endif
- void addPre13Extension(const char* ext)
- {
- if (builder.getSpvVersion() < glslang::EShTargetSpv_1_3)
- builder.addExtension(ext);
- }
- glslang::SpvOptions& options;
- spv::Function* shaderEntry;
- spv::Function* currentFunction;
- spv::Instruction* entryPoint;
- int sequenceDepth;
- spv::SpvBuildLogger* logger;
- // There is a 1:1 mapping between a spv builder and a module; this is thread safe
- spv::Builder builder;
- bool inEntryPoint;
- bool entryPointTerminated;
- bool linkageOnly; // true when visiting the set of objects in the AST present only for establishing interface, whether or not they were statically used
- std::set<spv::Id> iOSet; // all input/output variables from either static use or declaration of interface
- const glslang::TIntermediate* glslangIntermediate;
- spv::Id stdBuiltins;
- std::unordered_map<const char*, spv::Id> extBuiltinMap;
- std::unordered_map<int, spv::Id> symbolValues;
- std::unordered_set<int> rValueParameters; // set of formal function parameters passed as rValues, rather than a pointer
- std::unordered_map<std::string, spv::Function*> functionMap;
- std::unordered_map<const glslang::TTypeList*, spv::Id> structMap[glslang::ElpCount][glslang::ElmCount];
- // for mapping glslang block indices to spv indices (e.g., due to hidden members):
- std::unordered_map<const glslang::TTypeList*, std::vector<int> > memberRemapper;
- std::stack<bool> breakForLoop; // false means break for switch
- std::unordered_map<std::string, const glslang::TIntermSymbol*> counterOriginator;
- };
- //
- // Helper functions for translating glslang representations to SPIR-V enumerants.
- //
- // Translate glslang profile to SPIR-V source language.
- spv::SourceLanguage TranslateSourceLanguage(glslang::EShSource source, EProfile profile)
- {
- switch (source) {
- case glslang::EShSourceGlsl:
- switch (profile) {
- case ENoProfile:
- case ECoreProfile:
- case ECompatibilityProfile:
- return spv::SourceLanguageGLSL;
- case EEsProfile:
- return spv::SourceLanguageESSL;
- default:
- return spv::SourceLanguageUnknown;
- }
- case glslang::EShSourceHlsl:
- return spv::SourceLanguageHLSL;
- default:
- return spv::SourceLanguageUnknown;
- }
- }
- // Translate glslang language (stage) to SPIR-V execution model.
- spv::ExecutionModel TranslateExecutionModel(EShLanguage stage)
- {
- switch (stage) {
- case EShLangVertex: return spv::ExecutionModelVertex;
- case EShLangTessControl: return spv::ExecutionModelTessellationControl;
- case EShLangTessEvaluation: return spv::ExecutionModelTessellationEvaluation;
- case EShLangGeometry: return spv::ExecutionModelGeometry;
- case EShLangFragment: return spv::ExecutionModelFragment;
- case EShLangCompute: return spv::ExecutionModelGLCompute;
- default:
- assert(0);
- return spv::ExecutionModelFragment;
- }
- }
- // Translate glslang sampler type to SPIR-V dimensionality.
- spv::Dim TranslateDimensionality(const glslang::TSampler& sampler)
- {
- switch (sampler.dim) {
- case glslang::Esd1D: return spv::Dim1D;
- case glslang::Esd2D: return spv::Dim2D;
- case glslang::Esd3D: return spv::Dim3D;
- case glslang::EsdCube: return spv::DimCube;
- case glslang::EsdRect: return spv::DimRect;
- case glslang::EsdBuffer: return spv::DimBuffer;
- case glslang::EsdSubpass: return spv::DimSubpassData;
- default:
- assert(0);
- return spv::Dim2D;
- }
- }
- // Translate glslang precision to SPIR-V precision decorations.
- spv::Decoration TranslatePrecisionDecoration(glslang::TPrecisionQualifier glslangPrecision)
- {
- switch (glslangPrecision) {
- case glslang::EpqLow: return spv::DecorationRelaxedPrecision;
- case glslang::EpqMedium: return spv::DecorationRelaxedPrecision;
- default:
- return spv::NoPrecision;
- }
- }
- // Translate glslang type to SPIR-V precision decorations.
- spv::Decoration TranslatePrecisionDecoration(const glslang::TType& type)
- {
- return TranslatePrecisionDecoration(type.getQualifier().precision);
- }
- // Translate glslang type to SPIR-V block decorations.
- spv::Decoration TranslateBlockDecoration(const glslang::TType& type, bool useStorageBuffer)
- {
- if (type.getBasicType() == glslang::EbtBlock) {
- switch (type.getQualifier().storage) {
- case glslang::EvqUniform: return spv::DecorationBlock;
- case glslang::EvqBuffer: return useStorageBuffer ? spv::DecorationBlock : spv::DecorationBufferBlock;
- case glslang::EvqVaryingIn: return spv::DecorationBlock;
- case glslang::EvqVaryingOut: return spv::DecorationBlock;
- default:
- assert(0);
- break;
- }
- }
- return spv::DecorationMax;
- }
- // Translate glslang type to SPIR-V memory decorations.
- void TranslateMemoryDecoration(const glslang::TQualifier& qualifier, std::vector<spv::Decoration>& memory)
- {
- if (qualifier.coherent)
- memory.push_back(spv::DecorationCoherent);
- if (qualifier.volatil) {
- memory.push_back(spv::DecorationVolatile);
- memory.push_back(spv::DecorationCoherent);
- }
- if (qualifier.restrict)
- memory.push_back(spv::DecorationRestrict);
- if (qualifier.readonly)
- memory.push_back(spv::DecorationNonWritable);
- if (qualifier.writeonly)
- memory.push_back(spv::DecorationNonReadable);
- }
- // Translate glslang type to SPIR-V layout decorations.
- spv::Decoration TranslateLayoutDecoration(const glslang::TType& type, glslang::TLayoutMatrix matrixLayout)
- {
- if (type.isMatrix()) {
- switch (matrixLayout) {
- case glslang::ElmRowMajor:
- return spv::DecorationRowMajor;
- case glslang::ElmColumnMajor:
- return spv::DecorationColMajor;
- default:
- // opaque layouts don't need a majorness
- return spv::DecorationMax;
- }
- } else {
- switch (type.getBasicType()) {
- default:
- return spv::DecorationMax;
- break;
- case glslang::EbtBlock:
- switch (type.getQualifier().storage) {
- case glslang::EvqUniform:
- case glslang::EvqBuffer:
- switch (type.getQualifier().layoutPacking) {
- case glslang::ElpShared: return spv::DecorationGLSLShared;
- case glslang::ElpPacked: return spv::DecorationGLSLPacked;
- default:
- return spv::DecorationMax;
- }
- case glslang::EvqVaryingIn:
- case glslang::EvqVaryingOut:
- assert(type.getQualifier().layoutPacking == glslang::ElpNone);
- return spv::DecorationMax;
- default:
- assert(0);
- return spv::DecorationMax;
- }
- }
- }
- }
- // Translate glslang type to SPIR-V interpolation decorations.
- // Returns spv::DecorationMax when no decoration
- // should be applied.
- spv::Decoration TGlslangToSpvTraverser::TranslateInterpolationDecoration(const glslang::TQualifier& qualifier)
- {
- if (qualifier.smooth)
- // Smooth decoration doesn't exist in SPIR-V 1.0
- return spv::DecorationMax;
- else if (qualifier.nopersp)
- return spv::DecorationNoPerspective;
- else if (qualifier.flat)
- return spv::DecorationFlat;
- #ifdef AMD_EXTENSIONS
- else if (qualifier.explicitInterp) {
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::DecorationExplicitInterpAMD;
- }
- #endif
- else
- return spv::DecorationMax;
- }
- // Translate glslang type to SPIR-V auxiliary storage decorations.
- // Returns spv::DecorationMax when no decoration
- // should be applied.
- spv::Decoration TGlslangToSpvTraverser::TranslateAuxiliaryStorageDecoration(const glslang::TQualifier& qualifier)
- {
- if (qualifier.patch)
- return spv::DecorationPatch;
- else if (qualifier.centroid)
- return spv::DecorationCentroid;
- else if (qualifier.sample) {
- builder.addCapability(spv::CapabilitySampleRateShading);
- return spv::DecorationSample;
- } else
- return spv::DecorationMax;
- }
- // If glslang type is invariant, return SPIR-V invariant decoration.
- spv::Decoration TranslateInvariantDecoration(const glslang::TQualifier& qualifier)
- {
- if (qualifier.invariant)
- return spv::DecorationInvariant;
- else
- return spv::DecorationMax;
- }
- // If glslang type is noContraction, return SPIR-V NoContraction decoration.
- spv::Decoration TranslateNoContractionDecoration(const glslang::TQualifier& qualifier)
- {
- if (qualifier.noContraction)
- return spv::DecorationNoContraction;
- else
- return spv::DecorationMax;
- }
- // If glslang type is nonUniform, return SPIR-V NonUniform decoration.
- spv::Decoration TGlslangToSpvTraverser::TranslateNonUniformDecoration(const glslang::TQualifier& qualifier)
- {
- if (qualifier.isNonUniform()) {
- builder.addExtension("SPV_EXT_descriptor_indexing");
- builder.addCapability(spv::CapabilityShaderNonUniformEXT);
- return spv::DecorationNonUniformEXT;
- } else
- return spv::DecorationMax;
- }
- // Translate a glslang built-in variable to a SPIR-V built in decoration. Also generate
- // associated capabilities when required. For some built-in variables, a capability
- // is generated only when using the variable in an executable instruction, but not when
- // just declaring a struct member variable with it. This is true for PointSize,
- // ClipDistance, and CullDistance.
- spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltInVariable builtIn, bool memberDeclaration)
- {
- switch (builtIn) {
- case glslang::EbvPointSize:
- // Defer adding the capability until the built-in is actually used.
- if (! memberDeclaration) {
- switch (glslangIntermediate->getStage()) {
- case EShLangGeometry:
- builder.addCapability(spv::CapabilityGeometryPointSize);
- break;
- case EShLangTessControl:
- case EShLangTessEvaluation:
- builder.addCapability(spv::CapabilityTessellationPointSize);
- break;
- default:
- break;
- }
- }
- return spv::BuiltInPointSize;
- // These *Distance capabilities logically belong here, but if the member is declared and
- // then never used, consumers of SPIR-V prefer the capability not be declared.
- // They are now generated when used, rather than here when declared.
- // Potentially, the specification should be more clear what the minimum
- // use needed is to trigger the capability.
- //
- case glslang::EbvClipDistance:
- if (!memberDeclaration)
- builder.addCapability(spv::CapabilityClipDistance);
- return spv::BuiltInClipDistance;
- case glslang::EbvCullDistance:
- if (!memberDeclaration)
- builder.addCapability(spv::CapabilityCullDistance);
- return spv::BuiltInCullDistance;
- case glslang::EbvViewportIndex:
- builder.addCapability(spv::CapabilityMultiViewport);
- if (glslangIntermediate->getStage() == EShLangVertex ||
- glslangIntermediate->getStage() == EShLangTessControl ||
- glslangIntermediate->getStage() == EShLangTessEvaluation) {
- builder.addExtension(spv::E_SPV_EXT_shader_viewport_index_layer);
- builder.addCapability(spv::CapabilityShaderViewportIndexLayerEXT);
- }
- return spv::BuiltInViewportIndex;
- case glslang::EbvSampleId:
- builder.addCapability(spv::CapabilitySampleRateShading);
- return spv::BuiltInSampleId;
- case glslang::EbvSamplePosition:
- builder.addCapability(spv::CapabilitySampleRateShading);
- return spv::BuiltInSamplePosition;
- case glslang::EbvSampleMask:
- return spv::BuiltInSampleMask;
- case glslang::EbvLayer:
- builder.addCapability(spv::CapabilityGeometry);
- if (glslangIntermediate->getStage() == EShLangVertex ||
- glslangIntermediate->getStage() == EShLangTessControl ||
- glslangIntermediate->getStage() == EShLangTessEvaluation) {
- builder.addExtension(spv::E_SPV_EXT_shader_viewport_index_layer);
- builder.addCapability(spv::CapabilityShaderViewportIndexLayerEXT);
- }
- return spv::BuiltInLayer;
- case glslang::EbvPosition: return spv::BuiltInPosition;
- case glslang::EbvVertexId: return spv::BuiltInVertexId;
- case glslang::EbvInstanceId: return spv::BuiltInInstanceId;
- case glslang::EbvVertexIndex: return spv::BuiltInVertexIndex;
- case glslang::EbvInstanceIndex: return spv::BuiltInInstanceIndex;
- case glslang::EbvBaseVertex:
- addPre13Extension(spv::E_SPV_KHR_shader_draw_parameters);
- builder.addCapability(spv::CapabilityDrawParameters);
- return spv::BuiltInBaseVertex;
- case glslang::EbvBaseInstance:
- addPre13Extension(spv::E_SPV_KHR_shader_draw_parameters);
- builder.addCapability(spv::CapabilityDrawParameters);
- return spv::BuiltInBaseInstance;
- case glslang::EbvDrawId:
- addPre13Extension(spv::E_SPV_KHR_shader_draw_parameters);
- builder.addCapability(spv::CapabilityDrawParameters);
- return spv::BuiltInDrawIndex;
- case glslang::EbvPrimitiveId:
- if (glslangIntermediate->getStage() == EShLangFragment)
- builder.addCapability(spv::CapabilityGeometry);
- return spv::BuiltInPrimitiveId;
- case glslang::EbvFragStencilRef:
- builder.addExtension(spv::E_SPV_EXT_shader_stencil_export);
- builder.addCapability(spv::CapabilityStencilExportEXT);
- return spv::BuiltInFragStencilRefEXT;
- case glslang::EbvInvocationId: return spv::BuiltInInvocationId;
- case glslang::EbvTessLevelInner: return spv::BuiltInTessLevelInner;
- case glslang::EbvTessLevelOuter: return spv::BuiltInTessLevelOuter;
- case glslang::EbvTessCoord: return spv::BuiltInTessCoord;
- case glslang::EbvPatchVertices: return spv::BuiltInPatchVertices;
- case glslang::EbvFragCoord: return spv::BuiltInFragCoord;
- case glslang::EbvPointCoord: return spv::BuiltInPointCoord;
- case glslang::EbvFace: return spv::BuiltInFrontFacing;
- case glslang::EbvFragDepth: return spv::BuiltInFragDepth;
- case glslang::EbvHelperInvocation: return spv::BuiltInHelperInvocation;
- case glslang::EbvNumWorkGroups: return spv::BuiltInNumWorkgroups;
- case glslang::EbvWorkGroupSize: return spv::BuiltInWorkgroupSize;
- case glslang::EbvWorkGroupId: return spv::BuiltInWorkgroupId;
- case glslang::EbvLocalInvocationId: return spv::BuiltInLocalInvocationId;
- case glslang::EbvLocalInvocationIndex: return spv::BuiltInLocalInvocationIndex;
- case glslang::EbvGlobalInvocationId: return spv::BuiltInGlobalInvocationId;
- case glslang::EbvSubGroupSize:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupSize;
- case glslang::EbvSubGroupInvocation:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupLocalInvocationId;
- case glslang::EbvSubGroupEqMask:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupEqMaskKHR;
- case glslang::EbvSubGroupGeMask:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupGeMaskKHR;
- case glslang::EbvSubGroupGtMask:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupGtMaskKHR;
- case glslang::EbvSubGroupLeMask:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupLeMaskKHR;
- case glslang::EbvSubGroupLtMask:
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- return spv::BuiltInSubgroupLtMaskKHR;
- case glslang::EbvNumSubgroups:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- return spv::BuiltInNumSubgroups;
- case glslang::EbvSubgroupID:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- return spv::BuiltInSubgroupId;
- case glslang::EbvSubgroupSize2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- return spv::BuiltInSubgroupSize;
- case glslang::EbvSubgroupInvocation2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- return spv::BuiltInSubgroupLocalInvocationId;
- case glslang::EbvSubgroupEqMask2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- return spv::BuiltInSubgroupEqMask;
- case glslang::EbvSubgroupGeMask2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- return spv::BuiltInSubgroupGeMask;
- case glslang::EbvSubgroupGtMask2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- return spv::BuiltInSubgroupGtMask;
- case glslang::EbvSubgroupLeMask2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- return spv::BuiltInSubgroupLeMask;
- case glslang::EbvSubgroupLtMask2:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- return spv::BuiltInSubgroupLtMask;
- #ifdef AMD_EXTENSIONS
- case glslang::EbvBaryCoordNoPersp:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordNoPerspAMD;
- case glslang::EbvBaryCoordNoPerspCentroid:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordNoPerspCentroidAMD;
- case glslang::EbvBaryCoordNoPerspSample:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordNoPerspSampleAMD;
- case glslang::EbvBaryCoordSmooth:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordSmoothAMD;
- case glslang::EbvBaryCoordSmoothCentroid:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordSmoothCentroidAMD;
- case glslang::EbvBaryCoordSmoothSample:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordSmoothSampleAMD;
- case glslang::EbvBaryCoordPullModel:
- builder.addExtension(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- return spv::BuiltInBaryCoordPullModelAMD;
- #endif
- case glslang::EbvDeviceIndex:
- addPre13Extension(spv::E_SPV_KHR_device_group);
- builder.addCapability(spv::CapabilityDeviceGroup);
- return spv::BuiltInDeviceIndex;
- case glslang::EbvViewIndex:
- addPre13Extension(spv::E_SPV_KHR_multiview);
- builder.addCapability(spv::CapabilityMultiView);
- return spv::BuiltInViewIndex;
- #ifdef NV_EXTENSIONS
- case glslang::EbvViewportMaskNV:
- if (!memberDeclaration) {
- builder.addExtension(spv::E_SPV_NV_viewport_array2);
- builder.addCapability(spv::CapabilityShaderViewportMaskNV);
- }
- return spv::BuiltInViewportMaskNV;
- case glslang::EbvSecondaryPositionNV:
- if (!memberDeclaration) {
- builder.addExtension(spv::E_SPV_NV_stereo_view_rendering);
- builder.addCapability(spv::CapabilityShaderStereoViewNV);
- }
- return spv::BuiltInSecondaryPositionNV;
- case glslang::EbvSecondaryViewportMaskNV:
- if (!memberDeclaration) {
- builder.addExtension(spv::E_SPV_NV_stereo_view_rendering);
- builder.addCapability(spv::CapabilityShaderStereoViewNV);
- }
- return spv::BuiltInSecondaryViewportMaskNV;
- case glslang::EbvPositionPerViewNV:
- if (!memberDeclaration) {
- builder.addExtension(spv::E_SPV_NVX_multiview_per_view_attributes);
- builder.addCapability(spv::CapabilityPerViewAttributesNV);
- }
- return spv::BuiltInPositionPerViewNV;
- case glslang::EbvViewportMaskPerViewNV:
- if (!memberDeclaration) {
- builder.addExtension(spv::E_SPV_NVX_multiview_per_view_attributes);
- builder.addCapability(spv::CapabilityPerViewAttributesNV);
- }
- return spv::BuiltInViewportMaskPerViewNV;
- case glslang::EbvFragFullyCoveredNV:
- builder.addExtension(spv::E_SPV_EXT_fragment_fully_covered);
- builder.addCapability(spv::CapabilityFragmentFullyCoveredEXT);
- return spv::BuiltInFullyCoveredEXT;
- #endif
- default:
- return spv::BuiltInMax;
- }
- }
- // Translate glslang image layout format to SPIR-V image format.
- spv::ImageFormat TGlslangToSpvTraverser::TranslateImageFormat(const glslang::TType& type)
- {
- assert(type.getBasicType() == glslang::EbtSampler);
- // Check for capabilities
- switch (type.getQualifier().layoutFormat) {
- case glslang::ElfRg32f:
- case glslang::ElfRg16f:
- case glslang::ElfR11fG11fB10f:
- case glslang::ElfR16f:
- case glslang::ElfRgba16:
- case glslang::ElfRgb10A2:
- case glslang::ElfRg16:
- case glslang::ElfRg8:
- case glslang::ElfR16:
- case glslang::ElfR8:
- case glslang::ElfRgba16Snorm:
- case glslang::ElfRg16Snorm:
- case glslang::ElfRg8Snorm:
- case glslang::ElfR16Snorm:
- case glslang::ElfR8Snorm:
- case glslang::ElfRg32i:
- case glslang::ElfRg16i:
- case glslang::ElfRg8i:
- case glslang::ElfR16i:
- case glslang::ElfR8i:
- case glslang::ElfRgb10a2ui:
- case glslang::ElfRg32ui:
- case glslang::ElfRg16ui:
- case glslang::ElfRg8ui:
- case glslang::ElfR16ui:
- case glslang::ElfR8ui:
- builder.addCapability(spv::CapabilityStorageImageExtendedFormats);
- break;
- default:
- break;
- }
- // do the translation
- switch (type.getQualifier().layoutFormat) {
- case glslang::ElfNone: return spv::ImageFormatUnknown;
- case glslang::ElfRgba32f: return spv::ImageFormatRgba32f;
- case glslang::ElfRgba16f: return spv::ImageFormatRgba16f;
- case glslang::ElfR32f: return spv::ImageFormatR32f;
- case glslang::ElfRgba8: return spv::ImageFormatRgba8;
- case glslang::ElfRgba8Snorm: return spv::ImageFormatRgba8Snorm;
- case glslang::ElfRg32f: return spv::ImageFormatRg32f;
- case glslang::ElfRg16f: return spv::ImageFormatRg16f;
- case glslang::ElfR11fG11fB10f: return spv::ImageFormatR11fG11fB10f;
- case glslang::ElfR16f: return spv::ImageFormatR16f;
- case glslang::ElfRgba16: return spv::ImageFormatRgba16;
- case glslang::ElfRgb10A2: return spv::ImageFormatRgb10A2;
- case glslang::ElfRg16: return spv::ImageFormatRg16;
- case glslang::ElfRg8: return spv::ImageFormatRg8;
- case glslang::ElfR16: return spv::ImageFormatR16;
- case glslang::ElfR8: return spv::ImageFormatR8;
- case glslang::ElfRgba16Snorm: return spv::ImageFormatRgba16Snorm;
- case glslang::ElfRg16Snorm: return spv::ImageFormatRg16Snorm;
- case glslang::ElfRg8Snorm: return spv::ImageFormatRg8Snorm;
- case glslang::ElfR16Snorm: return spv::ImageFormatR16Snorm;
- case glslang::ElfR8Snorm: return spv::ImageFormatR8Snorm;
- case glslang::ElfRgba32i: return spv::ImageFormatRgba32i;
- case glslang::ElfRgba16i: return spv::ImageFormatRgba16i;
- case glslang::ElfRgba8i: return spv::ImageFormatRgba8i;
- case glslang::ElfR32i: return spv::ImageFormatR32i;
- case glslang::ElfRg32i: return spv::ImageFormatRg32i;
- case glslang::ElfRg16i: return spv::ImageFormatRg16i;
- case glslang::ElfRg8i: return spv::ImageFormatRg8i;
- case glslang::ElfR16i: return spv::ImageFormatR16i;
- case glslang::ElfR8i: return spv::ImageFormatR8i;
- case glslang::ElfRgba32ui: return spv::ImageFormatRgba32ui;
- case glslang::ElfRgba16ui: return spv::ImageFormatRgba16ui;
- case glslang::ElfRgba8ui: return spv::ImageFormatRgba8ui;
- case glslang::ElfR32ui: return spv::ImageFormatR32ui;
- case glslang::ElfRg32ui: return spv::ImageFormatRg32ui;
- case glslang::ElfRg16ui: return spv::ImageFormatRg16ui;
- case glslang::ElfRgb10a2ui: return spv::ImageFormatRgb10a2ui;
- case glslang::ElfRg8ui: return spv::ImageFormatRg8ui;
- case glslang::ElfR16ui: return spv::ImageFormatR16ui;
- case glslang::ElfR8ui: return spv::ImageFormatR8ui;
- default: return spv::ImageFormatMax;
- }
- }
- spv::SelectionControlMask TGlslangToSpvTraverser::TranslateSelectionControl(const glslang::TIntermSelection& selectionNode) const
- {
- if (selectionNode.getFlatten())
- return spv::SelectionControlFlattenMask;
- if (selectionNode.getDontFlatten())
- return spv::SelectionControlDontFlattenMask;
- return spv::SelectionControlMaskNone;
- }
- spv::SelectionControlMask TGlslangToSpvTraverser::TranslateSwitchControl(const glslang::TIntermSwitch& switchNode) const
- {
- if (switchNode.getFlatten())
- return spv::SelectionControlFlattenMask;
- if (switchNode.getDontFlatten())
- return spv::SelectionControlDontFlattenMask;
- return spv::SelectionControlMaskNone;
- }
- // return a non-0 dependency if the dependency argument must be set
- spv::LoopControlMask TGlslangToSpvTraverser::TranslateLoopControl(const glslang::TIntermLoop& loopNode,
- unsigned int& dependencyLength) const
- {
- spv::LoopControlMask control = spv::LoopControlMaskNone;
- if (loopNode.getDontUnroll())
- control = control | spv::LoopControlDontUnrollMask;
- if (loopNode.getUnroll())
- control = control | spv::LoopControlUnrollMask;
- if (unsigned(loopNode.getLoopDependency()) == glslang::TIntermLoop::dependencyInfinite)
- control = control | spv::LoopControlDependencyInfiniteMask;
- else if (loopNode.getLoopDependency() > 0) {
- control = control | spv::LoopControlDependencyLengthMask;
- dependencyLength = loopNode.getLoopDependency();
- }
- return control;
- }
- // Translate glslang type to SPIR-V storage class.
- spv::StorageClass TGlslangToSpvTraverser::TranslateStorageClass(const glslang::TType& type)
- {
- if (type.getQualifier().isPipeInput())
- return spv::StorageClassInput;
- if (type.getQualifier().isPipeOutput())
- return spv::StorageClassOutput;
- if (glslangIntermediate->getSource() != glslang::EShSourceHlsl ||
- type.getQualifier().storage == glslang::EvqUniform) {
- if (type.getBasicType() == glslang::EbtAtomicUint)
- return spv::StorageClassAtomicCounter;
- if (type.containsOpaque())
- return spv::StorageClassUniformConstant;
- }
- if (glslangIntermediate->usingStorageBuffer() && type.getQualifier().storage == glslang::EvqBuffer) {
- addPre13Extension(spv::E_SPV_KHR_storage_buffer_storage_class);
- return spv::StorageClassStorageBuffer;
- }
- if (type.getQualifier().isUniformOrBuffer()) {
- if (type.getQualifier().layoutPushConstant)
- return spv::StorageClassPushConstant;
- if (type.getBasicType() == glslang::EbtBlock)
- return spv::StorageClassUniform;
- return spv::StorageClassUniformConstant;
- }
- switch (type.getQualifier().storage) {
- case glslang::EvqShared: return spv::StorageClassWorkgroup;
- case glslang::EvqGlobal: return spv::StorageClassPrivate;
- case glslang::EvqConstReadOnly: return spv::StorageClassFunction;
- case glslang::EvqTemporary: return spv::StorageClassFunction;
- default:
- assert(0);
- break;
- }
- return spv::StorageClassFunction;
- }
- // Add capabilities pertaining to how an array is indexed.
- void TGlslangToSpvTraverser::addIndirectionIndexCapabilities(const glslang::TType& baseType,
- const glslang::TType& indexType)
- {
- if (indexType.getQualifier().isNonUniform()) {
- // deal with an asserted non-uniform index
- // SPV_EXT_descriptor_indexing already added in TranslateNonUniformDecoration
- if (baseType.getBasicType() == glslang::EbtSampler) {
- if (baseType.getQualifier().hasAttachment())
- builder.addCapability(spv::CapabilityInputAttachmentArrayNonUniformIndexingEXT);
- else if (baseType.isImage() && baseType.getSampler().dim == glslang::EsdBuffer)
- builder.addCapability(spv::CapabilityStorageTexelBufferArrayNonUniformIndexingEXT);
- else if (baseType.isTexture() && baseType.getSampler().dim == glslang::EsdBuffer)
- builder.addCapability(spv::CapabilityUniformTexelBufferArrayNonUniformIndexingEXT);
- else if (baseType.isImage())
- builder.addCapability(spv::CapabilityStorageImageArrayNonUniformIndexingEXT);
- else if (baseType.isTexture())
- builder.addCapability(spv::CapabilitySampledImageArrayNonUniformIndexingEXT);
- } else if (baseType.getBasicType() == glslang::EbtBlock) {
- if (baseType.getQualifier().storage == glslang::EvqBuffer)
- builder.addCapability(spv::CapabilityStorageBufferArrayNonUniformIndexingEXT);
- else if (baseType.getQualifier().storage == glslang::EvqUniform)
- builder.addCapability(spv::CapabilityUniformBufferArrayNonUniformIndexingEXT);
- }
- } else {
- // assume a dynamically uniform index
- if (baseType.getBasicType() == glslang::EbtSampler) {
- if (baseType.getQualifier().hasAttachment()) {
- builder.addExtension("SPV_EXT_descriptor_indexing");
- builder.addCapability(spv::CapabilityInputAttachmentArrayDynamicIndexingEXT);
- } else if (baseType.isImage() && baseType.getSampler().dim == glslang::EsdBuffer) {
- builder.addExtension("SPV_EXT_descriptor_indexing");
- builder.addCapability(spv::CapabilityStorageTexelBufferArrayDynamicIndexingEXT);
- } else if (baseType.isTexture() && baseType.getSampler().dim == glslang::EsdBuffer) {
- builder.addExtension("SPV_EXT_descriptor_indexing");
- builder.addCapability(spv::CapabilityUniformTexelBufferArrayDynamicIndexingEXT);
- }
- }
- }
- }
- // Return whether or not the given type is something that should be tied to a
- // descriptor set.
- bool IsDescriptorResource(const glslang::TType& type)
- {
- // uniform and buffer blocks are included, unless it is a push_constant
- if (type.getBasicType() == glslang::EbtBlock)
- return type.getQualifier().isUniformOrBuffer() && ! type.getQualifier().layoutPushConstant;
- // non block...
- // basically samplerXXX/subpass/sampler/texture are all included
- // if they are the global-scope-class, not the function parameter
- // (or local, if they ever exist) class.
- if (type.getBasicType() == glslang::EbtSampler)
- return type.getQualifier().isUniformOrBuffer();
- // None of the above.
- return false;
- }
- void InheritQualifiers(glslang::TQualifier& child, const glslang::TQualifier& parent)
- {
- if (child.layoutMatrix == glslang::ElmNone)
- child.layoutMatrix = parent.layoutMatrix;
- if (parent.invariant)
- child.invariant = true;
- if (parent.nopersp)
- child.nopersp = true;
- #ifdef AMD_EXTENSIONS
- if (parent.explicitInterp)
- child.explicitInterp = true;
- #endif
- if (parent.flat)
- child.flat = true;
- if (parent.centroid)
- child.centroid = true;
- if (parent.patch)
- child.patch = true;
- if (parent.sample)
- child.sample = true;
- if (parent.coherent)
- child.coherent = true;
- if (parent.volatil)
- child.volatil = true;
- if (parent.restrict)
- child.restrict = true;
- if (parent.readonly)
- child.readonly = true;
- if (parent.writeonly)
- child.writeonly = true;
- }
- bool HasNonLayoutQualifiers(const glslang::TType& type, const glslang::TQualifier& qualifier)
- {
- // This should list qualifiers that simultaneous satisfy:
- // - struct members might inherit from a struct declaration
- // (note that non-block structs don't explicitly inherit,
- // only implicitly, meaning no decoration involved)
- // - affect decorations on the struct members
- // (note smooth does not, and expecting something like volatile
- // to effect the whole object)
- // - are not part of the offset/st430/etc or row/column-major layout
- return qualifier.invariant || (qualifier.hasLocation() && type.getBasicType() == glslang::EbtBlock);
- }
- //
- // Implement the TGlslangToSpvTraverser class.
- //
- TGlslangToSpvTraverser::TGlslangToSpvTraverser(unsigned int spvVersion, const glslang::TIntermediate* glslangIntermediate,
- spv::SpvBuildLogger* buildLogger, glslang::SpvOptions& options)
- : TIntermTraverser(true, false, true),
- options(options),
- shaderEntry(nullptr), currentFunction(nullptr),
- sequenceDepth(0), logger(buildLogger),
- builder(spvVersion, (glslang::GetKhronosToolId() << 16) | glslang::GetSpirvGeneratorVersion(), logger),
- inEntryPoint(false), entryPointTerminated(false), linkageOnly(false),
- glslangIntermediate(glslangIntermediate)
- {
- spv::ExecutionModel executionModel = TranslateExecutionModel(glslangIntermediate->getStage());
- builder.clearAccessChain();
- builder.setSource(TranslateSourceLanguage(glslangIntermediate->getSource(), glslangIntermediate->getProfile()),
- glslangIntermediate->getVersion());
- if (options.generateDebugInfo) {
- builder.setEmitOpLines();
- builder.setSourceFile(glslangIntermediate->getSourceFile());
- // Set the source shader's text. If for SPV version 1.0, include
- // a preamble in comments stating the OpModuleProcessed instructions.
- // Otherwise, emit those as actual instructions.
- std::string text;
- const std::vector<std::string>& processes = glslangIntermediate->getProcesses();
- for (int p = 0; p < (int)processes.size(); ++p) {
- if (glslangIntermediate->getSpv().spv < 0x00010100) {
- text.append("// OpModuleProcessed ");
- text.append(processes[p]);
- text.append("\n");
- } else
- builder.addModuleProcessed(processes[p]);
- }
- if (glslangIntermediate->getSpv().spv < 0x00010100 && (int)processes.size() > 0)
- text.append("#line 1\n");
- text.append(glslangIntermediate->getSourceText());
- builder.setSourceText(text);
- }
- stdBuiltins = builder.import("GLSL.std.450");
- builder.setMemoryModel(spv::AddressingModelLogical, spv::MemoryModelGLSL450);
- shaderEntry = builder.makeEntryPoint(glslangIntermediate->getEntryPointName().c_str());
- entryPoint = builder.addEntryPoint(executionModel, shaderEntry, glslangIntermediate->getEntryPointName().c_str());
- // Add the source extensions
- const auto& sourceExtensions = glslangIntermediate->getRequestedExtensions();
- for (auto it = sourceExtensions.begin(); it != sourceExtensions.end(); ++it)
- builder.addSourceExtension(it->c_str());
- // Add the top-level modes for this shader.
- if (glslangIntermediate->getXfbMode()) {
- builder.addCapability(spv::CapabilityTransformFeedback);
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeXfb);
- }
- unsigned int mode;
- switch (glslangIntermediate->getStage()) {
- case EShLangVertex:
- builder.addCapability(spv::CapabilityShader);
- break;
- case EShLangTessEvaluation:
- case EShLangTessControl:
- builder.addCapability(spv::CapabilityTessellation);
- glslang::TLayoutGeometry primitive;
- if (glslangIntermediate->getStage() == EShLangTessControl) {
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeOutputVertices, glslangIntermediate->getVertices());
- primitive = glslangIntermediate->getOutputPrimitive();
- } else {
- primitive = glslangIntermediate->getInputPrimitive();
- }
- switch (primitive) {
- case glslang::ElgTriangles: mode = spv::ExecutionModeTriangles; break;
- case glslang::ElgQuads: mode = spv::ExecutionModeQuads; break;
- case glslang::ElgIsolines: mode = spv::ExecutionModeIsolines; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- switch (glslangIntermediate->getVertexSpacing()) {
- case glslang::EvsEqual: mode = spv::ExecutionModeSpacingEqual; break;
- case glslang::EvsFractionalEven: mode = spv::ExecutionModeSpacingFractionalEven; break;
- case glslang::EvsFractionalOdd: mode = spv::ExecutionModeSpacingFractionalOdd; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- switch (glslangIntermediate->getVertexOrder()) {
- case glslang::EvoCw: mode = spv::ExecutionModeVertexOrderCw; break;
- case glslang::EvoCcw: mode = spv::ExecutionModeVertexOrderCcw; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- if (glslangIntermediate->getPointMode())
- builder.addExecutionMode(shaderEntry, spv::ExecutionModePointMode);
- break;
- case EShLangGeometry:
- builder.addCapability(spv::CapabilityGeometry);
- switch (glslangIntermediate->getInputPrimitive()) {
- case glslang::ElgPoints: mode = spv::ExecutionModeInputPoints; break;
- case glslang::ElgLines: mode = spv::ExecutionModeInputLines; break;
- case glslang::ElgLinesAdjacency: mode = spv::ExecutionModeInputLinesAdjacency; break;
- case glslang::ElgTriangles: mode = spv::ExecutionModeTriangles; break;
- case glslang::ElgTrianglesAdjacency: mode = spv::ExecutionModeInputTrianglesAdjacency; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeInvocations, glslangIntermediate->getInvocations());
- switch (glslangIntermediate->getOutputPrimitive()) {
- case glslang::ElgPoints: mode = spv::ExecutionModeOutputPoints; break;
- case glslang::ElgLineStrip: mode = spv::ExecutionModeOutputLineStrip; break;
- case glslang::ElgTriangleStrip: mode = spv::ExecutionModeOutputTriangleStrip; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeOutputVertices, glslangIntermediate->getVertices());
- break;
- case EShLangFragment:
- builder.addCapability(spv::CapabilityShader);
- if (glslangIntermediate->getPixelCenterInteger())
- builder.addExecutionMode(shaderEntry, spv::ExecutionModePixelCenterInteger);
- if (glslangIntermediate->getOriginUpperLeft())
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeOriginUpperLeft);
- else
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeOriginLowerLeft);
- if (glslangIntermediate->getEarlyFragmentTests())
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeEarlyFragmentTests);
- if (glslangIntermediate->getPostDepthCoverage()) {
- builder.addCapability(spv::CapabilitySampleMaskPostDepthCoverage);
- builder.addExecutionMode(shaderEntry, spv::ExecutionModePostDepthCoverage);
- builder.addExtension(spv::E_SPV_KHR_post_depth_coverage);
- }
- switch(glslangIntermediate->getDepth()) {
- case glslang::EldGreater: mode = spv::ExecutionModeDepthGreater; break;
- case glslang::EldLess: mode = spv::ExecutionModeDepthLess; break;
- default: mode = spv::ExecutionModeMax; break;
- }
- if (mode != spv::ExecutionModeMax)
- builder.addExecutionMode(shaderEntry, (spv::ExecutionMode)mode);
- if (glslangIntermediate->getDepth() != glslang::EldUnchanged && glslangIntermediate->isDepthReplacing())
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeDepthReplacing);
- break;
- case EShLangCompute:
- builder.addCapability(spv::CapabilityShader);
- builder.addExecutionMode(shaderEntry, spv::ExecutionModeLocalSize, glslangIntermediate->getLocalSize(0),
- glslangIntermediate->getLocalSize(1),
- glslangIntermediate->getLocalSize(2));
- break;
- default:
- break;
- }
- }
- // Finish creating SPV, after the traversal is complete.
- void TGlslangToSpvTraverser::finishSpv()
- {
- // Finish the entry point function
- if (! entryPointTerminated) {
- builder.setBuildPoint(shaderEntry->getLastBlock());
- builder.leaveFunction();
- }
- // finish off the entry-point SPV instruction by adding the Input/Output <id>
- for (auto it = iOSet.cbegin(); it != iOSet.cend(); ++it)
- entryPoint->addIdOperand(*it);
- // Add capabilities, extensions, remove unneeded decorations, etc.,
- // based on the resulting SPIR-V.
- builder.postProcess();
- }
- // Write the SPV into 'out'.
- void TGlslangToSpvTraverser::dumpSpv(std::vector<unsigned int>& out)
- {
- builder.dump(out);
- }
- //
- // Implement the traversal functions.
- //
- // Return true from interior nodes to have the external traversal
- // continue on to children. Return false if children were
- // already processed.
- //
- //
- // Symbols can turn into
- // - uniform/input reads
- // - output writes
- // - complex lvalue base setups: foo.bar[3].... , where we see foo and start up an access chain
- // - something simple that degenerates into the last bullet
- //
- void TGlslangToSpvTraverser::visitSymbol(glslang::TIntermSymbol* symbol)
- {
- SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
- if (symbol->getType().getQualifier().isSpecConstant())
- spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
- // getSymbolId() will set up all the IO decorations on the first call.
- // Formal function parameters were mapped during makeFunctions().
- spv::Id id = getSymbolId(symbol);
- // Include all "static use" and "linkage only" interface variables on the OpEntryPoint instruction
- if (builder.isPointer(id)) {
- spv::StorageClass sc = builder.getStorageClass(id);
- if (sc == spv::StorageClassInput || sc == spv::StorageClassOutput) {
- if (!symbol->getType().isStruct() || symbol->getType().getStruct()->size() > 0)
- iOSet.insert(id);
- }
- }
- // Only process non-linkage-only nodes for generating actual static uses
- if (! linkageOnly || symbol->getQualifier().isSpecConstant()) {
- // Prepare to generate code for the access
- // L-value chains will be computed left to right. We're on the symbol now,
- // which is the left-most part of the access chain, so now is "clear" time,
- // followed by setting the base.
- builder.clearAccessChain();
- // For now, we consider all user variables as being in memory, so they are pointers,
- // except for
- // A) R-Value arguments to a function, which are an intermediate object.
- // See comments in handleUserFunctionCall().
- // B) Specialization constants (normal constants don't even come in as a variable),
- // These are also pure R-values.
- glslang::TQualifier qualifier = symbol->getQualifier();
- if (qualifier.isSpecConstant() || rValueParameters.find(symbol->getId()) != rValueParameters.end())
- builder.setAccessChainRValue(id);
- else
- builder.setAccessChainLValue(id);
- }
- // Process linkage-only nodes for any special additional interface work.
- if (linkageOnly) {
- if (glslangIntermediate->getHlslFunctionality1()) {
- // Map implicit counter buffers to their originating buffers, which should have been
- // seen by now, given earlier pruning of unused counters, and preservation of order
- // of declaration.
- if (symbol->getType().getQualifier().isUniformOrBuffer()) {
- if (!glslangIntermediate->hasCounterBufferName(symbol->getName())) {
- // Save possible originating buffers for counter buffers, keyed by
- // making the potential counter-buffer name.
- std::string keyName = symbol->getName().c_str();
- keyName = glslangIntermediate->addCounterBufferName(keyName);
- counterOriginator[keyName] = symbol;
- } else {
- // Handle a counter buffer, by finding the saved originating buffer.
- std::string keyName = symbol->getName().c_str();
- auto it = counterOriginator.find(keyName);
- if (it != counterOriginator.end()) {
- id = getSymbolId(it->second);
- if (id != spv::NoResult) {
- spv::Id counterId = getSymbolId(symbol);
- if (counterId != spv::NoResult) {
- builder.addExtension("SPV_GOOGLE_hlsl_functionality1");
- builder.addDecorationId(id, spv::DecorationHlslCounterBufferGOOGLE, counterId);
- }
- }
- }
- }
- }
- }
- }
- }
- bool TGlslangToSpvTraverser::visitBinary(glslang::TVisit /* visit */, glslang::TIntermBinary* node)
- {
- builder.setLine(node->getLoc().line);
- SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
- if (node->getType().getQualifier().isSpecConstant())
- spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
- // First, handle special cases
- switch (node->getOp()) {
- case glslang::EOpAssign:
- case glslang::EOpAddAssign:
- case glslang::EOpSubAssign:
- case glslang::EOpMulAssign:
- case glslang::EOpVectorTimesMatrixAssign:
- case glslang::EOpVectorTimesScalarAssign:
- case glslang::EOpMatrixTimesScalarAssign:
- case glslang::EOpMatrixTimesMatrixAssign:
- case glslang::EOpDivAssign:
- case glslang::EOpModAssign:
- case glslang::EOpAndAssign:
- case glslang::EOpInclusiveOrAssign:
- case glslang::EOpExclusiveOrAssign:
- case glslang::EOpLeftShiftAssign:
- case glslang::EOpRightShiftAssign:
- // A bin-op assign "a += b" means the same thing as "a = a + b"
- // where a is evaluated before b. For a simple assignment, GLSL
- // says to evaluate the left before the right. So, always, left
- // node then right node.
- {
- // get the left l-value, save it away
- builder.clearAccessChain();
- node->getLeft()->traverse(this);
- spv::Builder::AccessChain lValue = builder.getAccessChain();
- // evaluate the right
- builder.clearAccessChain();
- node->getRight()->traverse(this);
- spv::Id rValue = accessChainLoad(node->getRight()->getType());
- if (node->getOp() != glslang::EOpAssign) {
- // the left is also an r-value
- builder.setAccessChain(lValue);
- spv::Id leftRValue = accessChainLoad(node->getLeft()->getType());
- // do the operation
- OpDecorations decorations = { TranslatePrecisionDecoration(node->getOperationPrecision()),
- TranslateNoContractionDecoration(node->getType().getQualifier()),
- TranslateNonUniformDecoration(node->getType().getQualifier()) };
- rValue = createBinaryOperation(node->getOp(), decorations,
- convertGlslangToSpvType(node->getType()), leftRValue, rValue,
- node->getType().getBasicType());
- // these all need their counterparts in createBinaryOperation()
- assert(rValue != spv::NoResult);
- }
- // store the result
- builder.setAccessChain(lValue);
- multiTypeStore(node->getType(), rValue);
- // assignments are expressions having an rValue after they are evaluated...
- builder.clearAccessChain();
- builder.setAccessChainRValue(rValue);
- }
- return false;
- case glslang::EOpIndexDirect:
- case glslang::EOpIndexDirectStruct:
- {
- // Get the left part of the access chain.
- node->getLeft()->traverse(this);
- // Add the next element in the chain
- const int glslangIndex = node->getRight()->getAsConstantUnion()->getConstArray()[0].getIConst();
- if (! node->getLeft()->getType().isArray() &&
- node->getLeft()->getType().isVector() &&
- node->getOp() == glslang::EOpIndexDirect) {
- // This is essentially a hard-coded vector swizzle of size 1,
- // so short circuit the access-chain stuff with a swizzle.
- std::vector<unsigned> swizzle;
- swizzle.push_back(glslangIndex);
- builder.accessChainPushSwizzle(swizzle, convertGlslangToSpvType(node->getLeft()->getType()));
- } else {
- int spvIndex = glslangIndex;
- if (node->getLeft()->getBasicType() == glslang::EbtBlock &&
- node->getOp() == glslang::EOpIndexDirectStruct)
- {
- // This may be, e.g., an anonymous block-member selection, which generally need
- // index remapping due to hidden members in anonymous blocks.
- std::vector<int>& remapper = memberRemapper[node->getLeft()->getType().getStruct()];
- assert(remapper.size() > 0);
- spvIndex = remapper[glslangIndex];
- }
- // normal case for indexing array or structure or block
- builder.accessChainPush(builder.makeIntConstant(spvIndex));
- // Add capabilities here for accessing PointSize and clip/cull distance.
- // We have deferred generation of associated capabilities until now.
- if (node->getLeft()->getType().isStruct() && ! node->getLeft()->getType().isArray())
- declareUseOfStructMember(*(node->getLeft()->getType().getStruct()), glslangIndex);
- }
- }
- return false;
- case glslang::EOpIndexIndirect:
- {
- // Structure or array or vector indirection.
- // Will use native SPIR-V access-chain for struct and array indirection;
- // matrices are arrays of vectors, so will also work for a matrix.
- // Will use the access chain's 'component' for variable index into a vector.
- // This adapter is building access chains left to right.
- // Set up the access chain to the left.
- node->getLeft()->traverse(this);
- // save it so that computing the right side doesn't trash it
- spv::Builder::AccessChain partial = builder.getAccessChain();
- // compute the next index in the chain
- builder.clearAccessChain();
- node->getRight()->traverse(this);
- spv::Id index = accessChainLoad(node->getRight()->getType());
- addIndirectionIndexCapabilities(node->getLeft()->getType(), node->getRight()->getType());
- // restore the saved access chain
- builder.setAccessChain(partial);
- if (! node->getLeft()->getType().isArray() && node->getLeft()->getType().isVector())
- builder.accessChainPushComponent(index, convertGlslangToSpvType(node->getLeft()->getType()));
- else
- builder.accessChainPush(index);
- }
- return false;
- case glslang::EOpVectorSwizzle:
- {
- node->getLeft()->traverse(this);
- std::vector<unsigned> swizzle;
- convertSwizzle(*node->getRight()->getAsAggregate(), swizzle);
- builder.accessChainPushSwizzle(swizzle, convertGlslangToSpvType(node->getLeft()->getType()));
- }
- return false;
- case glslang::EOpMatrixSwizzle:
- logger->missingFunctionality("matrix swizzle");
- return true;
- case glslang::EOpLogicalOr:
- case glslang::EOpLogicalAnd:
- {
- // These may require short circuiting, but can sometimes be done as straight
- // binary operations. The right operand must be short circuited if it has
- // side effects, and should probably be if it is complex.
- if (isTrivial(node->getRight()->getAsTyped()))
- break; // handle below as a normal binary operation
- // otherwise, we need to do dynamic short circuiting on the right operand
- spv::Id result = createShortCircuit(node->getOp(), *node->getLeft()->getAsTyped(), *node->getRight()->getAsTyped());
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- }
- return false;
- default:
- break;
- }
- // Assume generic binary op...
- // get right operand
- builder.clearAccessChain();
- node->getLeft()->traverse(this);
- spv::Id left = accessChainLoad(node->getLeft()->getType());
- // get left operand
- builder.clearAccessChain();
- node->getRight()->traverse(this);
- spv::Id right = accessChainLoad(node->getRight()->getType());
- // get result
- OpDecorations decorations = { TranslatePrecisionDecoration(node->getOperationPrecision()),
- TranslateNoContractionDecoration(node->getType().getQualifier()),
- TranslateNonUniformDecoration(node->getType().getQualifier()) };
- spv::Id result = createBinaryOperation(node->getOp(), decorations,
- convertGlslangToSpvType(node->getType()), left, right,
- node->getLeft()->getType().getBasicType());
- builder.clearAccessChain();
- if (! result) {
- logger->missingFunctionality("unknown glslang binary operation");
- return true; // pick up a child as the place-holder result
- } else {
- builder.setAccessChainRValue(result);
- return false;
- }
- }
- bool TGlslangToSpvTraverser::visitUnary(glslang::TVisit /* visit */, glslang::TIntermUnary* node)
- {
- builder.setLine(node->getLoc().line);
- SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
- if (node->getType().getQualifier().isSpecConstant())
- spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
- spv::Id result = spv::NoResult;
- // try texturing first
- result = createImageTextureFunctionCall(node);
- if (result != spv::NoResult) {
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- return false; // done with this node
- }
- // Non-texturing.
- if (node->getOp() == glslang::EOpArrayLength) {
- // Quite special; won't want to evaluate the operand.
- // Currently, the front-end does not allow .length() on an array until it is sized,
- // except for the last block membeor of an SSBO.
- // TODO: If this changes, link-time sized arrays might show up here, and need their
- // size extracted.
- // Normal .length() would have been constant folded by the front-end.
- // So, this has to be block.lastMember.length().
- // SPV wants "block" and member number as the operands, go get them.
- glslang::TIntermTyped* block = node->getOperand()->getAsBinaryNode()->getLeft();
- block->traverse(this);
- unsigned int member = node->getOperand()->getAsBinaryNode()->getRight()->getAsConstantUnion()->getConstArray()[0].getUConst();
- spv::Id length = builder.createArrayLength(builder.accessChainGetLValue(), member);
- builder.clearAccessChain();
- builder.setAccessChainRValue(length);
- return false;
- }
- // Start by evaluating the operand
- // Does it need a swizzle inversion? If so, evaluation is inverted;
- // operate first on the swizzle base, then apply the swizzle.
- spv::Id invertedType = spv::NoType;
- auto resultType = [&invertedType, &node, this](){ return invertedType != spv::NoType ? invertedType : convertGlslangToSpvType(node->getType()); };
- if (node->getOp() == glslang::EOpInterpolateAtCentroid)
- invertedType = getInvertedSwizzleType(*node->getOperand());
- builder.clearAccessChain();
- if (invertedType != spv::NoType)
- node->getOperand()->getAsBinaryNode()->getLeft()->traverse(this);
- else
- node->getOperand()->traverse(this);
- spv::Id operand = spv::NoResult;
- if (node->getOp() == glslang::EOpAtomicCounterIncrement ||
- node->getOp() == glslang::EOpAtomicCounterDecrement ||
- node->getOp() == glslang::EOpAtomicCounter ||
- node->getOp() == glslang::EOpInterpolateAtCentroid)
- operand = builder.accessChainGetLValue(); // Special case l-value operands
- else
- operand = accessChainLoad(node->getOperand()->getType());
- OpDecorations decorations = { TranslatePrecisionDecoration(node->getOperationPrecision()),
- TranslateNoContractionDecoration(node->getType().getQualifier()),
- TranslateNonUniformDecoration(node->getType().getQualifier()) };
- // it could be a conversion
- if (! result)
- result = createConversion(node->getOp(), decorations, resultType(), operand, node->getOperand()->getBasicType());
- // if not, then possibly an operation
- if (! result)
- result = createUnaryOperation(node->getOp(), decorations, resultType(), operand, node->getOperand()->getBasicType());
- if (result) {
- if (invertedType) {
- result = createInvertedSwizzle(decorations.precision, *node->getOperand(), result);
- builder.addDecoration(result, decorations.nonUniform);
- }
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- return false; // done with this node
- }
- // it must be a special case, check...
- switch (node->getOp()) {
- case glslang::EOpPostIncrement:
- case glslang::EOpPostDecrement:
- case glslang::EOpPreIncrement:
- case glslang::EOpPreDecrement:
- {
- // we need the integer value "1" or the floating point "1.0" to add/subtract
- spv::Id one = 0;
- if (node->getBasicType() == glslang::EbtFloat)
- one = builder.makeFloatConstant(1.0F);
- else if (node->getBasicType() == glslang::EbtDouble)
- one = builder.makeDoubleConstant(1.0);
- else if (node->getBasicType() == glslang::EbtFloat16)
- one = builder.makeFloat16Constant(1.0F);
- else if (node->getBasicType() == glslang::EbtInt8 || node->getBasicType() == glslang::EbtUint8)
- one = builder.makeInt8Constant(1);
- else if (node->getBasicType() == glslang::EbtInt16 || node->getBasicType() == glslang::EbtUint16)
- one = builder.makeInt16Constant(1);
- else if (node->getBasicType() == glslang::EbtInt64 || node->getBasicType() == glslang::EbtUint64)
- one = builder.makeInt64Constant(1);
- else
- one = builder.makeIntConstant(1);
- glslang::TOperator op;
- if (node->getOp() == glslang::EOpPreIncrement ||
- node->getOp() == glslang::EOpPostIncrement)
- op = glslang::EOpAdd;
- else
- op = glslang::EOpSub;
- spv::Id result = createBinaryOperation(op, decorations,
- convertGlslangToSpvType(node->getType()), operand, one,
- node->getType().getBasicType());
- assert(result != spv::NoResult);
- // The result of operation is always stored, but conditionally the
- // consumed result. The consumed result is always an r-value.
- builder.accessChainStore(result);
- builder.clearAccessChain();
- if (node->getOp() == glslang::EOpPreIncrement ||
- node->getOp() == glslang::EOpPreDecrement)
- builder.setAccessChainRValue(result);
- else
- builder.setAccessChainRValue(operand);
- }
- return false;
- case glslang::EOpEmitStreamVertex:
- builder.createNoResultOp(spv::OpEmitStreamVertex, operand);
- return false;
- case glslang::EOpEndStreamPrimitive:
- builder.createNoResultOp(spv::OpEndStreamPrimitive, operand);
- return false;
- default:
- logger->missingFunctionality("unknown glslang unary");
- return true; // pick up operand as placeholder result
- }
- }
- bool TGlslangToSpvTraverser::visitAggregate(glslang::TVisit visit, glslang::TIntermAggregate* node)
- {
- SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
- if (node->getType().getQualifier().isSpecConstant())
- spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
- spv::Id result = spv::NoResult;
- spv::Id invertedType = spv::NoType; // to use to override the natural type of the node
- auto resultType = [&invertedType, &node, this](){ return invertedType != spv::NoType ? invertedType : convertGlslangToSpvType(node->getType()); };
- // try texturing
- result = createImageTextureFunctionCall(node);
- if (result != spv::NoResult) {
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- return false;
- #ifdef AMD_EXTENSIONS
- } else if (node->getOp() == glslang::EOpImageStore || node->getOp() == glslang::EOpImageStoreLod) {
- #else
- } else if (node->getOp() == glslang::EOpImageStore) {
- #endif
- // "imageStore" is a special case, which has no result
- return false;
- }
- glslang::TOperator binOp = glslang::EOpNull;
- bool reduceComparison = true;
- bool isMatrix = false;
- bool noReturnValue = false;
- bool atomic = false;
- assert(node->getOp());
- spv::Decoration precision = TranslatePrecisionDecoration(node->getOperationPrecision());
- switch (node->getOp()) {
- case glslang::EOpSequence:
- {
- if (preVisit)
- ++sequenceDepth;
- else
- --sequenceDepth;
- if (sequenceDepth == 1) {
- // If this is the parent node of all the functions, we want to see them
- // early, so all call points have actual SPIR-V functions to reference.
- // In all cases, still let the traverser visit the children for us.
- makeFunctions(node->getAsAggregate()->getSequence());
- // Also, we want all globals initializers to go into the beginning of the entry point, before
- // anything else gets there, so visit out of order, doing them all now.
- makeGlobalInitializers(node->getAsAggregate()->getSequence());
- // Initializers are done, don't want to visit again, but functions and link objects need to be processed,
- // so do them manually.
- visitFunctions(node->getAsAggregate()->getSequence());
- return false;
- }
- return true;
- }
- case glslang::EOpLinkerObjects:
- {
- if (visit == glslang::EvPreVisit)
- linkageOnly = true;
- else
- linkageOnly = false;
- return true;
- }
- case glslang::EOpComma:
- {
- // processing from left to right naturally leaves the right-most
- // lying around in the access chain
- glslang::TIntermSequence& glslangOperands = node->getSequence();
- for (int i = 0; i < (int)glslangOperands.size(); ++i)
- glslangOperands[i]->traverse(this);
- return false;
- }
- case glslang::EOpFunction:
- if (visit == glslang::EvPreVisit) {
- if (isShaderEntryPoint(node)) {
- inEntryPoint = true;
- builder.setBuildPoint(shaderEntry->getLastBlock());
- currentFunction = shaderEntry;
- } else {
- handleFunctionEntry(node);
- }
- } else {
- if (inEntryPoint)
- entryPointTerminated = true;
- builder.leaveFunction();
- inEntryPoint = false;
- }
- return true;
- case glslang::EOpParameters:
- // Parameters will have been consumed by EOpFunction processing, but not
- // the body, so we still visited the function node's children, making this
- // child redundant.
- return false;
- case glslang::EOpFunctionCall:
- {
- builder.setLine(node->getLoc().line);
- if (node->isUserDefined())
- result = handleUserFunctionCall(node);
- // assert(result); // this can happen for bad shaders because the call graph completeness checking is not yet done
- if (result) {
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- } else
- logger->missingFunctionality("missing user function; linker needs to catch that");
- return false;
- }
- case glslang::EOpConstructMat2x2:
- case glslang::EOpConstructMat2x3:
- case glslang::EOpConstructMat2x4:
- case glslang::EOpConstructMat3x2:
- case glslang::EOpConstructMat3x3:
- case glslang::EOpConstructMat3x4:
- case glslang::EOpConstructMat4x2:
- case glslang::EOpConstructMat4x3:
- case glslang::EOpConstructMat4x4:
- case glslang::EOpConstructDMat2x2:
- case glslang::EOpConstructDMat2x3:
- case glslang::EOpConstructDMat2x4:
- case glslang::EOpConstructDMat3x2:
- case glslang::EOpConstructDMat3x3:
- case glslang::EOpConstructDMat3x4:
- case glslang::EOpConstructDMat4x2:
- case glslang::EOpConstructDMat4x3:
- case glslang::EOpConstructDMat4x4:
- case glslang::EOpConstructIMat2x2:
- case glslang::EOpConstructIMat2x3:
- case glslang::EOpConstructIMat2x4:
- case glslang::EOpConstructIMat3x2:
- case glslang::EOpConstructIMat3x3:
- case glslang::EOpConstructIMat3x4:
- case glslang::EOpConstructIMat4x2:
- case glslang::EOpConstructIMat4x3:
- case glslang::EOpConstructIMat4x4:
- case glslang::EOpConstructUMat2x2:
- case glslang::EOpConstructUMat2x3:
- case glslang::EOpConstructUMat2x4:
- case glslang::EOpConstructUMat3x2:
- case glslang::EOpConstructUMat3x3:
- case glslang::EOpConstructUMat3x4:
- case glslang::EOpConstructUMat4x2:
- case glslang::EOpConstructUMat4x3:
- case glslang::EOpConstructUMat4x4:
- case glslang::EOpConstructBMat2x2:
- case glslang::EOpConstructBMat2x3:
- case glslang::EOpConstructBMat2x4:
- case glslang::EOpConstructBMat3x2:
- case glslang::EOpConstructBMat3x3:
- case glslang::EOpConstructBMat3x4:
- case glslang::EOpConstructBMat4x2:
- case glslang::EOpConstructBMat4x3:
- case glslang::EOpConstructBMat4x4:
- case glslang::EOpConstructF16Mat2x2:
- case glslang::EOpConstructF16Mat2x3:
- case glslang::EOpConstructF16Mat2x4:
- case glslang::EOpConstructF16Mat3x2:
- case glslang::EOpConstructF16Mat3x3:
- case glslang::EOpConstructF16Mat3x4:
- case glslang::EOpConstructF16Mat4x2:
- case glslang::EOpConstructF16Mat4x3:
- case glslang::EOpConstructF16Mat4x4:
- isMatrix = true;
- // fall through
- case glslang::EOpConstructFloat:
- case glslang::EOpConstructVec2:
- case glslang::EOpConstructVec3:
- case glslang::EOpConstructVec4:
- case glslang::EOpConstructDouble:
- case glslang::EOpConstructDVec2:
- case glslang::EOpConstructDVec3:
- case glslang::EOpConstructDVec4:
- case glslang::EOpConstructFloat16:
- case glslang::EOpConstructF16Vec2:
- case glslang::EOpConstructF16Vec3:
- case glslang::EOpConstructF16Vec4:
- case glslang::EOpConstructBool:
- case glslang::EOpConstructBVec2:
- case glslang::EOpConstructBVec3:
- case glslang::EOpConstructBVec4:
- case glslang::EOpConstructInt8:
- case glslang::EOpConstructI8Vec2:
- case glslang::EOpConstructI8Vec3:
- case glslang::EOpConstructI8Vec4:
- case glslang::EOpConstructUint8:
- case glslang::EOpConstructU8Vec2:
- case glslang::EOpConstructU8Vec3:
- case glslang::EOpConstructU8Vec4:
- case glslang::EOpConstructInt16:
- case glslang::EOpConstructI16Vec2:
- case glslang::EOpConstructI16Vec3:
- case glslang::EOpConstructI16Vec4:
- case glslang::EOpConstructUint16:
- case glslang::EOpConstructU16Vec2:
- case glslang::EOpConstructU16Vec3:
- case glslang::EOpConstructU16Vec4:
- case glslang::EOpConstructInt:
- case glslang::EOpConstructIVec2:
- case glslang::EOpConstructIVec3:
- case glslang::EOpConstructIVec4:
- case glslang::EOpConstructUint:
- case glslang::EOpConstructUVec2:
- case glslang::EOpConstructUVec3:
- case glslang::EOpConstructUVec4:
- case glslang::EOpConstructInt64:
- case glslang::EOpConstructI64Vec2:
- case glslang::EOpConstructI64Vec3:
- case glslang::EOpConstructI64Vec4:
- case glslang::EOpConstructUint64:
- case glslang::EOpConstructU64Vec2:
- case glslang::EOpConstructU64Vec3:
- case glslang::EOpConstructU64Vec4:
- case glslang::EOpConstructStruct:
- case glslang::EOpConstructTextureSampler:
- {
- builder.setLine(node->getLoc().line);
- std::vector<spv::Id> arguments;
- translateArguments(*node, arguments);
- spv::Id constructed;
- if (node->getOp() == glslang::EOpConstructTextureSampler)
- constructed = builder.createOp(spv::OpSampledImage, resultType(), arguments);
- else if (node->getOp() == glslang::EOpConstructStruct || node->getType().isArray()) {
- std::vector<spv::Id> constituents;
- for (int c = 0; c < (int)arguments.size(); ++c)
- constituents.push_back(arguments[c]);
- constructed = builder.createCompositeConstruct(resultType(), constituents);
- } else if (isMatrix)
- constructed = builder.createMatrixConstructor(precision, arguments, resultType());
- else
- constructed = builder.createConstructor(precision, arguments, resultType());
- builder.clearAccessChain();
- builder.setAccessChainRValue(constructed);
- return false;
- }
- // These six are component-wise compares with component-wise results.
- // Forward on to createBinaryOperation(), requesting a vector result.
- case glslang::EOpLessThan:
- case glslang::EOpGreaterThan:
- case glslang::EOpLessThanEqual:
- case glslang::EOpGreaterThanEqual:
- case glslang::EOpVectorEqual:
- case glslang::EOpVectorNotEqual:
- {
- // Map the operation to a binary
- binOp = node->getOp();
- reduceComparison = false;
- switch (node->getOp()) {
- case glslang::EOpVectorEqual: binOp = glslang::EOpVectorEqual; break;
- case glslang::EOpVectorNotEqual: binOp = glslang::EOpVectorNotEqual; break;
- default: binOp = node->getOp(); break;
- }
- break;
- }
- case glslang::EOpMul:
- // component-wise matrix multiply
- binOp = glslang::EOpMul;
- break;
- case glslang::EOpOuterProduct:
- // two vectors multiplied to make a matrix
- binOp = glslang::EOpOuterProduct;
- break;
- case glslang::EOpDot:
- {
- // for scalar dot product, use multiply
- glslang::TIntermSequence& glslangOperands = node->getSequence();
- if (glslangOperands[0]->getAsTyped()->getVectorSize() == 1)
- binOp = glslang::EOpMul;
- break;
- }
- case glslang::EOpMod:
- // when an aggregate, this is the floating-point mod built-in function,
- // which can be emitted by the one in createBinaryOperation()
- binOp = glslang::EOpMod;
- break;
- case glslang::EOpEmitVertex:
- case glslang::EOpEndPrimitive:
- case glslang::EOpBarrier:
- case glslang::EOpMemoryBarrier:
- case glslang::EOpMemoryBarrierAtomicCounter:
- case glslang::EOpMemoryBarrierBuffer:
- case glslang::EOpMemoryBarrierImage:
- case glslang::EOpMemoryBarrierShared:
- case glslang::EOpGroupMemoryBarrier:
- case glslang::EOpDeviceMemoryBarrier:
- case glslang::EOpAllMemoryBarrierWithGroupSync:
- case glslang::EOpDeviceMemoryBarrierWithGroupSync:
- case glslang::EOpWorkgroupMemoryBarrier:
- case glslang::EOpWorkgroupMemoryBarrierWithGroupSync:
- case glslang::EOpSubgroupBarrier:
- case glslang::EOpSubgroupMemoryBarrier:
- case glslang::EOpSubgroupMemoryBarrierBuffer:
- case glslang::EOpSubgroupMemoryBarrierImage:
- case glslang::EOpSubgroupMemoryBarrierShared:
- noReturnValue = true;
- // These all have 0 operands and will naturally finish up in the code below for 0 operands
- break;
- case glslang::EOpAtomicAdd:
- case glslang::EOpAtomicMin:
- case glslang::EOpAtomicMax:
- case glslang::EOpAtomicAnd:
- case glslang::EOpAtomicOr:
- case glslang::EOpAtomicXor:
- case glslang::EOpAtomicExchange:
- case glslang::EOpAtomicCompSwap:
- atomic = true;
- break;
- case glslang::EOpAtomicCounterAdd:
- case glslang::EOpAtomicCounterSubtract:
- case glslang::EOpAtomicCounterMin:
- case glslang::EOpAtomicCounterMax:
- case glslang::EOpAtomicCounterAnd:
- case glslang::EOpAtomicCounterOr:
- case glslang::EOpAtomicCounterXor:
- case glslang::EOpAtomicCounterExchange:
- case glslang::EOpAtomicCounterCompSwap:
- builder.addExtension("SPV_KHR_shader_atomic_counter_ops");
- builder.addCapability(spv::CapabilityAtomicStorageOps);
- atomic = true;
- break;
- default:
- break;
- }
- //
- // See if it maps to a regular operation.
- //
- if (binOp != glslang::EOpNull) {
- glslang::TIntermTyped* left = node->getSequence()[0]->getAsTyped();
- glslang::TIntermTyped* right = node->getSequence()[1]->getAsTyped();
- assert(left && right);
- builder.clearAccessChain();
- left->traverse(this);
- spv::Id leftId = accessChainLoad(left->getType());
- builder.clearAccessChain();
- right->traverse(this);
- spv::Id rightId = accessChainLoad(right->getType());
- builder.setLine(node->getLoc().line);
- OpDecorations decorations = { precision,
- TranslateNoContractionDecoration(node->getType().getQualifier()),
- TranslateNonUniformDecoration(node->getType().getQualifier()) };
- result = createBinaryOperation(binOp, decorations,
- resultType(), leftId, rightId,
- left->getType().getBasicType(), reduceComparison);
- // code above should only make binOp that exists in createBinaryOperation
- assert(result != spv::NoResult);
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- return false;
- }
- //
- // Create the list of operands.
- //
- glslang::TIntermSequence& glslangOperands = node->getSequence();
- std::vector<spv::Id> operands;
- for (int arg = 0; arg < (int)glslangOperands.size(); ++arg) {
- // special case l-value operands; there are just a few
- bool lvalue = false;
- switch (node->getOp()) {
- case glslang::EOpFrexp:
- case glslang::EOpModf:
- if (arg == 1)
- lvalue = true;
- break;
- case glslang::EOpInterpolateAtSample:
- case glslang::EOpInterpolateAtOffset:
- #ifdef AMD_EXTENSIONS
- case glslang::EOpInterpolateAtVertex:
- #endif
- if (arg == 0) {
- lvalue = true;
- // Does it need a swizzle inversion? If so, evaluation is inverted;
- // operate first on the swizzle base, then apply the swizzle.
- if (glslangOperands[0]->getAsOperator() &&
- glslangOperands[0]->getAsOperator()->getOp() == glslang::EOpVectorSwizzle)
- invertedType = convertGlslangToSpvType(glslangOperands[0]->getAsBinaryNode()->getLeft()->getType());
- }
- break;
- case glslang::EOpAtomicAdd:
- case glslang::EOpAtomicMin:
- case glslang::EOpAtomicMax:
- case glslang::EOpAtomicAnd:
- case glslang::EOpAtomicOr:
- case glslang::EOpAtomicXor:
- case glslang::EOpAtomicExchange:
- case glslang::EOpAtomicCompSwap:
- case glslang::EOpAtomicCounterAdd:
- case glslang::EOpAtomicCounterSubtract:
- case glslang::EOpAtomicCounterMin:
- case glslang::EOpAtomicCounterMax:
- case glslang::EOpAtomicCounterAnd:
- case glslang::EOpAtomicCounterOr:
- case glslang::EOpAtomicCounterXor:
- case glslang::EOpAtomicCounterExchange:
- case glslang::EOpAtomicCounterCompSwap:
- if (arg == 0)
- lvalue = true;
- break;
- case glslang::EOpAddCarry:
- case glslang::EOpSubBorrow:
- if (arg == 2)
- lvalue = true;
- break;
- case glslang::EOpUMulExtended:
- case glslang::EOpIMulExtended:
- if (arg >= 2)
- lvalue = true;
- break;
- default:
- break;
- }
- builder.clearAccessChain();
- if (invertedType != spv::NoType && arg == 0)
- glslangOperands[0]->getAsBinaryNode()->getLeft()->traverse(this);
- else
- glslangOperands[arg]->traverse(this);
- if (lvalue)
- operands.push_back(builder.accessChainGetLValue());
- else {
- builder.setLine(node->getLoc().line);
- operands.push_back(accessChainLoad(glslangOperands[arg]->getAsTyped()->getType()));
- }
- }
- builder.setLine(node->getLoc().line);
- if (atomic) {
- // Handle all atomics
- result = createAtomicOperation(node->getOp(), precision, resultType(), operands, node->getBasicType());
- } else {
- // Pass through to generic operations.
- switch (glslangOperands.size()) {
- case 0:
- result = createNoArgOperation(node->getOp(), precision, resultType());
- break;
- case 1:
- {
- OpDecorations decorations = { precision,
- TranslateNoContractionDecoration(node->getType().getQualifier()),
- TranslateNonUniformDecoration(node->getType().getQualifier()) };
- result = createUnaryOperation(
- node->getOp(), decorations,
- resultType(), operands.front(),
- glslangOperands[0]->getAsTyped()->getBasicType());
- }
- break;
- default:
- result = createMiscOperation(node->getOp(), precision, resultType(), operands, node->getBasicType());
- break;
- }
- if (invertedType)
- result = createInvertedSwizzle(precision, *glslangOperands[0]->getAsBinaryNode(), result);
- }
- if (noReturnValue)
- return false;
- if (! result) {
- logger->missingFunctionality("unknown glslang aggregate");
- return true; // pick up a child as a placeholder operand
- } else {
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- return false;
- }
- }
- // This path handles both if-then-else and ?:
- // The if-then-else has a node type of void, while
- // ?: has either a void or a non-void node type
- //
- // Leaving the result, when not void:
- // GLSL only has r-values as the result of a :?, but
- // if we have an l-value, that can be more efficient if it will
- // become the base of a complex r-value expression, because the
- // next layer copies r-values into memory to use the access-chain mechanism
- bool TGlslangToSpvTraverser::visitSelection(glslang::TVisit /* visit */, glslang::TIntermSelection* node)
- {
- // See if it simple and safe, or required, to execute both sides.
- // Crucially, side effects must be either semantically required or avoided,
- // and there are performance trade-offs.
- // Return true if required or a good idea (and safe) to execute both sides,
- // false otherwise.
- const auto bothSidesPolicy = [&]() -> bool {
- // do we have both sides?
- if (node->getTrueBlock() == nullptr ||
- node->getFalseBlock() == nullptr)
- return false;
- // required? (unless we write additional code to look for side effects
- // and make performance trade-offs if none are present)
- if (!node->getShortCircuit())
- return true;
- // if not required to execute both, decide based on performance/practicality...
- // see if OpSelect can handle it
- if ((!node->getType().isScalar() && !node->getType().isVector()) ||
- node->getBasicType() == glslang::EbtVoid)
- return false;
- assert(node->getType() == node->getTrueBlock() ->getAsTyped()->getType() &&
- node->getType() == node->getFalseBlock()->getAsTyped()->getType());
- // return true if a single operand to ? : is okay for OpSelect
- const auto operandOkay = [](glslang::TIntermTyped* node) {
- return node->getAsSymbolNode() || node->getType().getQualifier().isConstant();
- };
- return operandOkay(node->getTrueBlock() ->getAsTyped()) &&
- operandOkay(node->getFalseBlock()->getAsTyped());
- };
- spv::Id result = spv::NoResult; // upcoming result selecting between trueValue and falseValue
- // emit the condition before doing anything with selection
- node->getCondition()->traverse(this);
- spv::Id condition = accessChainLoad(node->getCondition()->getType());
- // Find a way of executing both sides and selecting the right result.
- const auto executeBothSides = [&]() -> void {
- // execute both sides
- node->getTrueBlock()->traverse(this);
- spv::Id trueValue = accessChainLoad(node->getTrueBlock()->getAsTyped()->getType());
- node->getFalseBlock()->traverse(this);
- spv::Id falseValue = accessChainLoad(node->getTrueBlock()->getAsTyped()->getType());
- builder.setLine(node->getLoc().line);
- // done if void
- if (node->getBasicType() == glslang::EbtVoid)
- return;
- // emit code to select between trueValue and falseValue
- // see if OpSelect can handle it
- if (node->getType().isScalar() || node->getType().isVector()) {
- // Emit OpSelect for this selection.
- // smear condition to vector, if necessary (AST is always scalar)
- if (builder.isVector(trueValue))
- condition = builder.smearScalar(spv::NoPrecision, condition,
- builder.makeVectorType(builder.makeBoolType(),
- builder.getNumComponents(trueValue)));
- // OpSelect
- result = builder.createTriOp(spv::OpSelect,
- convertGlslangToSpvType(node->getType()), condition,
- trueValue, falseValue);
- builder.clearAccessChain();
- builder.setAccessChainRValue(result);
- } else {
- // We need control flow to select the result.
- // TODO: Once SPIR-V OpSelect allows arbitrary types, eliminate this path.
- result = builder.createVariable(spv::StorageClassFunction, convertGlslangToSpvType(node->getType()));
- // Selection control:
- const spv::SelectionControlMask control = TranslateSelectionControl(*node);
- // make an "if" based on the value created by the condition
- spv::Builder::If ifBuilder(condition, control, builder);
- // emit the "then" statement
- builder.createStore(trueValue, result);
- ifBuilder.makeBeginElse();
- // emit the "else" statement
- builder.createStore(falseValue, result);
- // finish off the control flow
- ifBuilder.makeEndIf();
- builder.clearAccessChain();
- builder.setAccessChainLValue(result);
- }
- };
- // Execute the one side needed, as per the condition
- const auto executeOneSide = [&]() {
- // Always emit control flow.
- if (node->getBasicType() != glslang::EbtVoid)
- result = builder.createVariable(spv::StorageClassFunction, convertGlslangToSpvType(node->getType()));
- // Selection control:
- const spv::SelectionControlMask control = TranslateSelectionControl(*node);
- // make an "if" based on the value created by the condition
- spv::Builder::If ifBuilder(condition, control, builder);
- // emit the "then" statement
- if (node->getTrueBlock() != nullptr) {
- node->getTrueBlock()->traverse(this);
- if (result != spv::NoResult)
- builder.createStore(accessChainLoad(node->getTrueBlock()->getAsTyped()->getType()), result);
- }
- if (node->getFalseBlock() != nullptr) {
- ifBuilder.makeBeginElse();
- // emit the "else" statement
- node->getFalseBlock()->traverse(this);
- if (result != spv::NoResult)
- builder.createStore(accessChainLoad(node->getFalseBlock()->getAsTyped()->getType()), result);
- }
- // finish off the control flow
- ifBuilder.makeEndIf();
- if (result != spv::NoResult) {
- builder.clearAccessChain();
- builder.setAccessChainLValue(result);
- }
- };
- // Try for OpSelect (or a requirement to execute both sides)
- if (bothSidesPolicy()) {
- SpecConstantOpModeGuard spec_constant_op_mode_setter(&builder);
- if (node->getType().getQualifier().isSpecConstant())
- spec_constant_op_mode_setter.turnOnSpecConstantOpMode();
- executeBothSides();
- } else
- executeOneSide();
- return false;
- }
- bool TGlslangToSpvTraverser::visitSwitch(glslang::TVisit /* visit */, glslang::TIntermSwitch* node)
- {
- // emit and get the condition before doing anything with switch
- node->getCondition()->traverse(this);
- spv::Id selector = accessChainLoad(node->getCondition()->getAsTyped()->getType());
- // Selection control:
- const spv::SelectionControlMask control = TranslateSwitchControl(*node);
- // browse the children to sort out code segments
- int defaultSegment = -1;
- std::vector<TIntermNode*> codeSegments;
- glslang::TIntermSequence& sequence = node->getBody()->getSequence();
- std::vector<int> caseValues;
- std::vector<int> valueIndexToSegment(sequence.size()); // note: probably not all are used, it is an overestimate
- for (glslang::TIntermSequence::iterator c = sequence.begin(); c != sequence.end(); ++c) {
- TIntermNode* child = *c;
- if (child->getAsBranchNode() && child->getAsBranchNode()->getFlowOp() == glslang::EOpDefault)
- defaultSegment = (int)codeSegments.size();
- else if (child->getAsBranchNode() && child->getAsBranchNode()->getFlowOp() == glslang::EOpCase) {
- valueIndexToSegment[caseValues.size()] = (int)codeSegments.size();
- caseValues.push_back(child->getAsBranchNode()->getExpression()->getAsConstantUnion()->getConstArray()[0].getIConst());
- } else
- codeSegments.push_back(child);
- }
- // handle the case where the last code segment is missing, due to no code
- // statements between the last case and the end of the switch statement
- if ((caseValues.size() && (int)codeSegments.size() == valueIndexToSegment[caseValues.size() - 1]) ||
- (int)codeSegments.size() == defaultSegment)
- codeSegments.push_back(nullptr);
- // make the switch statement
- std::vector<spv::Block*> segmentBlocks; // returned, as the blocks allocated in the call
- builder.makeSwitch(selector, control, (int)codeSegments.size(), caseValues, valueIndexToSegment, defaultSegment, segmentBlocks);
- // emit all the code in the segments
- breakForLoop.push(false);
- for (unsigned int s = 0; s < codeSegments.size(); ++s) {
- builder.nextSwitchSegment(segmentBlocks, s);
- if (codeSegments[s])
- codeSegments[s]->traverse(this);
- else
- builder.addSwitchBreak();
- }
- breakForLoop.pop();
- builder.endSwitch(segmentBlocks);
- return false;
- }
- void TGlslangToSpvTraverser::visitConstantUnion(glslang::TIntermConstantUnion* node)
- {
- int nextConst = 0;
- spv::Id constant = createSpvConstantFromConstUnionArray(node->getType(), node->getConstArray(), nextConst, false);
- builder.clearAccessChain();
- builder.setAccessChainRValue(constant);
- }
- bool TGlslangToSpvTraverser::visitLoop(glslang::TVisit /* visit */, glslang::TIntermLoop* node)
- {
- auto blocks = builder.makeNewLoop();
- builder.createBranch(&blocks.head);
- // Loop control:
- unsigned int dependencyLength = glslang::TIntermLoop::dependencyInfinite;
- const spv::LoopControlMask control = TranslateLoopControl(*node, dependencyLength);
- // Spec requires back edges to target header blocks, and every header block
- // must dominate its merge block. Make a header block first to ensure these
- // conditions are met. By definition, it will contain OpLoopMerge, followed
- // by a block-ending branch. But we don't want to put any other body/test
- // instructions in it, since the body/test may have arbitrary instructions,
- // including merges of its own.
- builder.setLine(node->getLoc().line);
- builder.setBuildPoint(&blocks.head);
- builder.createLoopMerge(&blocks.merge, &blocks.continue_target, control, dependencyLength);
- if (node->testFirst() && node->getTest()) {
- spv::Block& test = builder.makeNewBlock();
- builder.createBranch(&test);
- builder.setBuildPoint(&test);
- node->getTest()->traverse(this);
- spv::Id condition = accessChainLoad(node->getTest()->getType());
- builder.createConditionalBranch(condition, &blocks.body, &blocks.merge);
- builder.setBuildPoint(&blocks.body);
- breakForLoop.push(true);
- if (node->getBody())
- node->getBody()->traverse(this);
- builder.createBranch(&blocks.continue_target);
- breakForLoop.pop();
- builder.setBuildPoint(&blocks.continue_target);
- if (node->getTerminal())
- node->getTerminal()->traverse(this);
- builder.createBranch(&blocks.head);
- } else {
- builder.setLine(node->getLoc().line);
- builder.createBranch(&blocks.body);
- breakForLoop.push(true);
- builder.setBuildPoint(&blocks.body);
- if (node->getBody())
- node->getBody()->traverse(this);
- builder.createBranch(&blocks.continue_target);
- breakForLoop.pop();
- builder.setBuildPoint(&blocks.continue_target);
- if (node->getTerminal())
- node->getTerminal()->traverse(this);
- if (node->getTest()) {
- node->getTest()->traverse(this);
- spv::Id condition =
- accessChainLoad(node->getTest()->getType());
- builder.createConditionalBranch(condition, &blocks.head, &blocks.merge);
- } else {
- // TODO: unless there was a break/return/discard instruction
- // somewhere in the body, this is an infinite loop, so we should
- // issue a warning.
- builder.createBranch(&blocks.head);
- }
- }
- builder.setBuildPoint(&blocks.merge);
- builder.closeLoop();
- return false;
- }
- bool TGlslangToSpvTraverser::visitBranch(glslang::TVisit /* visit */, glslang::TIntermBranch* node)
- {
- if (node->getExpression())
- node->getExpression()->traverse(this);
- builder.setLine(node->getLoc().line);
- switch (node->getFlowOp()) {
- case glslang::EOpKill:
- builder.makeDiscard();
- break;
- case glslang::EOpBreak:
- if (breakForLoop.top())
- builder.createLoopExit();
- else
- builder.addSwitchBreak();
- break;
- case glslang::EOpContinue:
- builder.createLoopContinue();
- break;
- case glslang::EOpReturn:
- if (node->getExpression()) {
- const glslang::TType& glslangReturnType = node->getExpression()->getType();
- spv::Id returnId = accessChainLoad(glslangReturnType);
- if (builder.getTypeId(returnId) != currentFunction->getReturnType()) {
- builder.clearAccessChain();
- spv::Id copyId = builder.createVariable(spv::StorageClassFunction, currentFunction->getReturnType());
- builder.setAccessChainLValue(copyId);
- multiTypeStore(glslangReturnType, returnId);
- returnId = builder.createLoad(copyId);
- }
- builder.makeReturn(false, returnId);
- } else
- builder.makeReturn(false);
- builder.clearAccessChain();
- break;
- default:
- assert(0);
- break;
- }
- return false;
- }
- spv::Id TGlslangToSpvTraverser::createSpvVariable(const glslang::TIntermSymbol* node)
- {
- // First, steer off constants, which are not SPIR-V variables, but
- // can still have a mapping to a SPIR-V Id.
- // This includes specialization constants.
- if (node->getQualifier().isConstant()) {
- return createSpvConstant(*node);
- }
- // Now, handle actual variables
- spv::StorageClass storageClass = TranslateStorageClass(node->getType());
- spv::Id spvType = convertGlslangToSpvType(node->getType());
- const bool contains16BitType = node->getType().containsBasicType(glslang::EbtFloat16) ||
- node->getType().containsBasicType(glslang::EbtInt16) ||
- node->getType().containsBasicType(glslang::EbtUint16);
- if (contains16BitType) {
- switch (storageClass) {
- case spv::StorageClassInput:
- case spv::StorageClassOutput:
- addPre13Extension(spv::E_SPV_KHR_16bit_storage);
- builder.addCapability(spv::CapabilityStorageInputOutput16);
- break;
- case spv::StorageClassPushConstant:
- addPre13Extension(spv::E_SPV_KHR_16bit_storage);
- builder.addCapability(spv::CapabilityStoragePushConstant16);
- break;
- case spv::StorageClassUniform:
- addPre13Extension(spv::E_SPV_KHR_16bit_storage);
- if (node->getType().getQualifier().storage == glslang::EvqBuffer)
- builder.addCapability(spv::CapabilityStorageUniformBufferBlock16);
- else
- builder.addCapability(spv::CapabilityStorageUniform16);
- break;
- case spv::StorageClassStorageBuffer:
- addPre13Extension(spv::E_SPV_KHR_16bit_storage);
- builder.addCapability(spv::CapabilityStorageUniformBufferBlock16);
- break;
- default:
- break;
- }
- }
- const bool contains8BitType = node->getType().containsBasicType(glslang::EbtInt8) ||
- node->getType().containsBasicType(glslang::EbtUint8);
- if (contains8BitType) {
- if (storageClass == spv::StorageClassPushConstant) {
- builder.addExtension(spv::E_SPV_KHR_8bit_storage);
- builder.addCapability(spv::CapabilityStoragePushConstant8);
- } else if (storageClass == spv::StorageClassUniform) {
- builder.addExtension(spv::E_SPV_KHR_8bit_storage);
- builder.addCapability(spv::CapabilityUniformAndStorageBuffer8BitAccess);
- if (node->getType().getQualifier().storage == glslang::EvqBuffer)
- builder.addCapability(spv::CapabilityStorageBuffer8BitAccess);
- }
- }
- const char* name = node->getName().c_str();
- if (glslang::IsAnonymous(name))
- name = "";
- return builder.createVariable(storageClass, spvType, name);
- }
- // Return type Id of the sampled type.
- spv::Id TGlslangToSpvTraverser::getSampledType(const glslang::TSampler& sampler)
- {
- switch (sampler.type) {
- case glslang::EbtFloat: return builder.makeFloatType(32);
- #ifdef AMD_EXTENSIONS
- case glslang::EbtFloat16:
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float_fetch);
- builder.addCapability(spv::CapabilityFloat16ImageAMD);
- return builder.makeFloatType(16);
- #endif
- case glslang::EbtInt: return builder.makeIntType(32);
- case glslang::EbtUint: return builder.makeUintType(32);
- default:
- assert(0);
- return builder.makeFloatType(32);
- }
- }
- // If node is a swizzle operation, return the type that should be used if
- // the swizzle base is first consumed by another operation, before the swizzle
- // is applied.
- spv::Id TGlslangToSpvTraverser::getInvertedSwizzleType(const glslang::TIntermTyped& node)
- {
- if (node.getAsOperator() &&
- node.getAsOperator()->getOp() == glslang::EOpVectorSwizzle)
- return convertGlslangToSpvType(node.getAsBinaryNode()->getLeft()->getType());
- else
- return spv::NoType;
- }
- // When inverting a swizzle with a parent op, this function
- // will apply the swizzle operation to a completed parent operation.
- spv::Id TGlslangToSpvTraverser::createInvertedSwizzle(spv::Decoration precision, const glslang::TIntermTyped& node, spv::Id parentResult)
- {
- std::vector<unsigned> swizzle;
- convertSwizzle(*node.getAsBinaryNode()->getRight()->getAsAggregate(), swizzle);
- return builder.createRvalueSwizzle(precision, convertGlslangToSpvType(node.getType()), parentResult, swizzle);
- }
- // Convert a glslang AST swizzle node to a swizzle vector for building SPIR-V.
- void TGlslangToSpvTraverser::convertSwizzle(const glslang::TIntermAggregate& node, std::vector<unsigned>& swizzle)
- {
- const glslang::TIntermSequence& swizzleSequence = node.getSequence();
- for (int i = 0; i < (int)swizzleSequence.size(); ++i)
- swizzle.push_back(swizzleSequence[i]->getAsConstantUnion()->getConstArray()[0].getIConst());
- }
- // Convert from a glslang type to an SPV type, by calling into a
- // recursive version of this function. This establishes the inherited
- // layout state rooted from the top-level type.
- spv::Id TGlslangToSpvTraverser::convertGlslangToSpvType(const glslang::TType& type)
- {
- return convertGlslangToSpvType(type, getExplicitLayout(type), type.getQualifier(), false);
- }
- // Do full recursive conversion of an arbitrary glslang type to a SPIR-V Id.
- // explicitLayout can be kept the same throughout the hierarchical recursive walk.
- // Mutually recursive with convertGlslangStructToSpvType().
- spv::Id TGlslangToSpvTraverser::convertGlslangToSpvType(const glslang::TType& type,
- glslang::TLayoutPacking explicitLayout, const glslang::TQualifier& qualifier, bool lastBufferBlockMember)
- {
- spv::Id spvType = spv::NoResult;
- switch (type.getBasicType()) {
- case glslang::EbtVoid:
- spvType = builder.makeVoidType();
- assert (! type.isArray());
- break;
- case glslang::EbtFloat:
- spvType = builder.makeFloatType(32);
- break;
- case glslang::EbtDouble:
- spvType = builder.makeFloatType(64);
- break;
- case glslang::EbtFloat16:
- #if AMD_EXTENSIONS
- if (builder.getSpvVersion() < glslang::EShTargetSpv_1_3)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
- #endif
- spvType = builder.makeFloatType(16);
- break;
- case glslang::EbtBool:
- // "transparent" bool doesn't exist in SPIR-V. The GLSL convention is
- // a 32-bit int where non-0 means true.
- if (explicitLayout != glslang::ElpNone)
- spvType = builder.makeUintType(32);
- else
- spvType = builder.makeBoolType();
- break;
- case glslang::EbtInt8:
- spvType = builder.makeIntType(8);
- break;
- case glslang::EbtUint8:
- spvType = builder.makeUintType(8);
- break;
- case glslang::EbtInt16:
- #ifdef AMD_EXTENSIONS
- if (builder.getSpvVersion() < glslang::EShTargetSpv_1_3)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_int16);
- #endif
- spvType = builder.makeIntType(16);
- break;
- case glslang::EbtUint16:
- #ifdef AMD_EXTENSIONS
- if (builder.getSpvVersion() < glslang::EShTargetSpv_1_3)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_int16);
- #endif
- spvType = builder.makeUintType(16);
- break;
- case glslang::EbtInt:
- spvType = builder.makeIntType(32);
- break;
- case glslang::EbtUint:
- spvType = builder.makeUintType(32);
- break;
- case glslang::EbtInt64:
- spvType = builder.makeIntType(64);
- break;
- case glslang::EbtUint64:
- spvType = builder.makeUintType(64);
- break;
- case glslang::EbtAtomicUint:
- builder.addCapability(spv::CapabilityAtomicStorage);
- spvType = builder.makeUintType(32);
- break;
- case glslang::EbtSampler:
- {
- const glslang::TSampler& sampler = type.getSampler();
- if (sampler.sampler) {
- // pure sampler
- spvType = builder.makeSamplerType();
- } else {
- // an image is present, make its type
- spvType = builder.makeImageType(getSampledType(sampler), TranslateDimensionality(sampler), sampler.shadow, sampler.arrayed, sampler.ms,
- sampler.image ? 2 : 1, TranslateImageFormat(type));
- if (sampler.combined) {
- // already has both image and sampler, make the combined type
- spvType = builder.makeSampledImageType(spvType);
- }
- }
- }
- break;
- case glslang::EbtStruct:
- case glslang::EbtBlock:
- {
- // If we've seen this struct type, return it
- const glslang::TTypeList* glslangMembers = type.getStruct();
- // Try to share structs for different layouts, but not yet for other
- // kinds of qualification (primarily not yet including interpolant qualification).
- if (! HasNonLayoutQualifiers(type, qualifier))
- spvType = structMap[explicitLayout][qualifier.layoutMatrix][glslangMembers];
- if (spvType != spv::NoResult)
- break;
- // else, we haven't seen it...
- if (type.getBasicType() == glslang::EbtBlock)
- memberRemapper[glslangMembers].resize(glslangMembers->size());
- spvType = convertGlslangStructToSpvType(type, glslangMembers, explicitLayout, qualifier);
- }
- break;
- default:
- assert(0);
- break;
- }
- if (type.isMatrix())
- spvType = builder.makeMatrixType(spvType, type.getMatrixCols(), type.getMatrixRows());
- else {
- // If this variable has a vector element count greater than 1, create a SPIR-V vector
- if (type.getVectorSize() > 1)
- spvType = builder.makeVectorType(spvType, type.getVectorSize());
- }
- if (type.isArray()) {
- int stride = 0; // keep this 0 unless doing an explicit layout; 0 will mean no decoration, no stride
- // Do all but the outer dimension
- if (type.getArraySizes()->getNumDims() > 1) {
- // We need to decorate array strides for types needing explicit layout, except blocks.
- if (explicitLayout != glslang::ElpNone && type.getBasicType() != glslang::EbtBlock) {
- // Use a dummy glslang type for querying internal strides of
- // arrays of arrays, but using just a one-dimensional array.
- glslang::TType simpleArrayType(type, 0); // deference type of the array
- while (simpleArrayType.getArraySizes()->getNumDims() > 1)
- simpleArrayType.getArraySizes()->dereference();
- // Will compute the higher-order strides here, rather than making a whole
- // pile of types and doing repetitive recursion on their contents.
- stride = getArrayStride(simpleArrayType, explicitLayout, qualifier.layoutMatrix);
- }
- // make the arrays
- for (int dim = type.getArraySizes()->getNumDims() - 1; dim > 0; --dim) {
- spvType = builder.makeArrayType(spvType, makeArraySizeId(*type.getArraySizes(), dim), stride);
- if (stride > 0)
- builder.addDecoration(spvType, spv::DecorationArrayStride, stride);
- stride *= type.getArraySizes()->getDimSize(dim);
- }
- } else {
- // single-dimensional array, and don't yet have stride
- // We need to decorate array strides for types needing explicit layout, except blocks.
- if (explicitLayout != glslang::ElpNone && type.getBasicType() != glslang::EbtBlock)
- stride = getArrayStride(type, explicitLayout, qualifier.layoutMatrix);
- }
- // Do the outer dimension, which might not be known for a runtime-sized array.
- // (Unsized arrays that survive through linking will be runtime-sized arrays)
- if (type.isSizedArray())
- spvType = builder.makeArrayType(spvType, makeArraySizeId(*type.getArraySizes(), 0), stride);
- else {
- if (!lastBufferBlockMember) {
- builder.addExtension("SPV_EXT_descriptor_indexing");
- builder.addCapability(spv::CapabilityRuntimeDescriptorArrayEXT);
- }
- spvType = builder.makeRuntimeArray(spvType);
- }
- if (stride > 0)
- builder.addDecoration(spvType, spv::DecorationArrayStride, stride);
- }
- return spvType;
- }
- // TODO: this functionality should exist at a higher level, in creating the AST
- //
- // Identify interface members that don't have their required extension turned on.
- //
- bool TGlslangToSpvTraverser::filterMember(const glslang::TType& member)
- {
- auto& extensions = glslangIntermediate->getRequestedExtensions();
- if (member.getFieldName() == "gl_ViewportMask" &&
- extensions.find("GL_NV_viewport_array2") == extensions.end())
- return true;
- if (member.getFieldName() == "gl_SecondaryViewportMaskNV" &&
- extensions.find("GL_NV_stereo_view_rendering") == extensions.end())
- return true;
- if (member.getFieldName() == "gl_SecondaryPositionNV" &&
- extensions.find("GL_NV_stereo_view_rendering") == extensions.end())
- return true;
- if (member.getFieldName() == "gl_PositionPerViewNV" &&
- extensions.find("GL_NVX_multiview_per_view_attributes") == extensions.end())
- return true;
- if (member.getFieldName() == "gl_ViewportMaskPerViewNV" &&
- extensions.find("GL_NVX_multiview_per_view_attributes") == extensions.end())
- return true;
- return false;
- };
- // Do full recursive conversion of a glslang structure (or block) type to a SPIR-V Id.
- // explicitLayout can be kept the same throughout the hierarchical recursive walk.
- // Mutually recursive with convertGlslangToSpvType().
- spv::Id TGlslangToSpvTraverser::convertGlslangStructToSpvType(const glslang::TType& type,
- const glslang::TTypeList* glslangMembers,
- glslang::TLayoutPacking explicitLayout,
- const glslang::TQualifier& qualifier)
- {
- // Create a vector of struct types for SPIR-V to consume
- std::vector<spv::Id> spvMembers;
- int memberDelta = 0; // how much the member's index changes from glslang to SPIR-V, normally 0, except sometimes for blocks
- for (int i = 0; i < (int)glslangMembers->size(); i++) {
- glslang::TType& glslangMember = *(*glslangMembers)[i].type;
- if (glslangMember.hiddenMember()) {
- ++memberDelta;
- if (type.getBasicType() == glslang::EbtBlock)
- memberRemapper[glslangMembers][i] = -1;
- } else {
- if (type.getBasicType() == glslang::EbtBlock) {
- memberRemapper[glslangMembers][i] = i - memberDelta;
- if (filterMember(glslangMember))
- continue;
- }
- // modify just this child's view of the qualifier
- glslang::TQualifier memberQualifier = glslangMember.getQualifier();
- InheritQualifiers(memberQualifier, qualifier);
- // manually inherit location
- if (! memberQualifier.hasLocation() && qualifier.hasLocation())
- memberQualifier.layoutLocation = qualifier.layoutLocation;
- // recurse
- bool lastBufferBlockMember = qualifier.storage == glslang::EvqBuffer &&
- i == (int)glslangMembers->size() - 1;
- spvMembers.push_back(
- convertGlslangToSpvType(glslangMember, explicitLayout, memberQualifier, lastBufferBlockMember));
- }
- }
- // Make the SPIR-V type
- spv::Id spvType = builder.makeStructType(spvMembers, type.getTypeName().c_str());
- if (! HasNonLayoutQualifiers(type, qualifier))
- structMap[explicitLayout][qualifier.layoutMatrix][glslangMembers] = spvType;
- // Decorate it
- decorateStructType(type, glslangMembers, explicitLayout, qualifier, spvType);
- return spvType;
- }
- void TGlslangToSpvTraverser::decorateStructType(const glslang::TType& type,
- const glslang::TTypeList* glslangMembers,
- glslang::TLayoutPacking explicitLayout,
- const glslang::TQualifier& qualifier,
- spv::Id spvType)
- {
- // Name and decorate the non-hidden members
- int offset = -1;
- int locationOffset = 0; // for use within the members of this struct
- for (int i = 0; i < (int)glslangMembers->size(); i++) {
- glslang::TType& glslangMember = *(*glslangMembers)[i].type;
- int member = i;
- if (type.getBasicType() == glslang::EbtBlock) {
- member = memberRemapper[glslangMembers][i];
- if (filterMember(glslangMember))
- continue;
- }
- // modify just this child's view of the qualifier
- glslang::TQualifier memberQualifier = glslangMember.getQualifier();
- InheritQualifiers(memberQualifier, qualifier);
- // using -1 above to indicate a hidden member
- if (member < 0)
- continue;
- builder.addMemberName(spvType, member, glslangMember.getFieldName().c_str());
- builder.addMemberDecoration(spvType, member,
- TranslateLayoutDecoration(glslangMember, memberQualifier.layoutMatrix));
- builder.addMemberDecoration(spvType, member, TranslatePrecisionDecoration(glslangMember));
- // Add interpolation and auxiliary storage decorations only to
- // top-level members of Input and Output storage classes
- if (type.getQualifier().storage == glslang::EvqVaryingIn ||
- type.getQualifier().storage == glslang::EvqVaryingOut) {
- if (type.getBasicType() == glslang::EbtBlock ||
- glslangIntermediate->getSource() == glslang::EShSourceHlsl) {
- builder.addMemberDecoration(spvType, member, TranslateInterpolationDecoration(memberQualifier));
- builder.addMemberDecoration(spvType, member, TranslateAuxiliaryStorageDecoration(memberQualifier));
- }
- }
- builder.addMemberDecoration(spvType, member, TranslateInvariantDecoration(memberQualifier));
- if (type.getBasicType() == glslang::EbtBlock &&
- qualifier.storage == glslang::EvqBuffer) {
- // Add memory decorations only to top-level members of shader storage block
- std::vector<spv::Decoration> memory;
- TranslateMemoryDecoration(memberQualifier, memory);
- for (unsigned int i = 0; i < memory.size(); ++i)
- builder.addMemberDecoration(spvType, member, memory[i]);
- }
- // Location assignment was already completed correctly by the front end,
- // just track whether a member needs to be decorated.
- // Ignore member locations if the container is an array, as that's
- // ill-specified and decisions have been made to not allow this.
- if (! type.isArray() && memberQualifier.hasLocation())
- builder.addMemberDecoration(spvType, member, spv::DecorationLocation, memberQualifier.layoutLocation);
- if (qualifier.hasLocation()) // track for upcoming inheritance
- locationOffset += glslangIntermediate->computeTypeLocationSize(
- glslangMember, glslangIntermediate->getStage());
- // component, XFB, others
- if (glslangMember.getQualifier().hasComponent())
- builder.addMemberDecoration(spvType, member, spv::DecorationComponent,
- glslangMember.getQualifier().layoutComponent);
- if (glslangMember.getQualifier().hasXfbOffset())
- builder.addMemberDecoration(spvType, member, spv::DecorationOffset,
- glslangMember.getQualifier().layoutXfbOffset);
- else if (explicitLayout != glslang::ElpNone) {
- // figure out what to do with offset, which is accumulating
- int nextOffset;
- updateMemberOffset(type, glslangMember, offset, nextOffset, explicitLayout, memberQualifier.layoutMatrix);
- if (offset >= 0)
- builder.addMemberDecoration(spvType, member, spv::DecorationOffset, offset);
- offset = nextOffset;
- }
- if (glslangMember.isMatrix() && explicitLayout != glslang::ElpNone)
- builder.addMemberDecoration(spvType, member, spv::DecorationMatrixStride,
- getMatrixStride(glslangMember, explicitLayout, memberQualifier.layoutMatrix));
- // built-in variable decorations
- spv::BuiltIn builtIn = TranslateBuiltInDecoration(glslangMember.getQualifier().builtIn, true);
- if (builtIn != spv::BuiltInMax)
- builder.addMemberDecoration(spvType, member, spv::DecorationBuiltIn, (int)builtIn);
- // nonuniform
- builder.addMemberDecoration(spvType, member, TranslateNonUniformDecoration(glslangMember.getQualifier()));
- if (glslangIntermediate->getHlslFunctionality1() && memberQualifier.semanticName != nullptr) {
- builder.addExtension("SPV_GOOGLE_hlsl_functionality1");
- builder.addMemberDecoration(spvType, member, (spv::Decoration)spv::DecorationHlslSemanticGOOGLE,
- memberQualifier.semanticName);
- }
- #ifdef NV_EXTENSIONS
- if (builtIn == spv::BuiltInLayer) {
- // SPV_NV_viewport_array2 extension
- if (glslangMember.getQualifier().layoutViewportRelative){
- builder.addMemberDecoration(spvType, member, (spv::Decoration)spv::DecorationViewportRelativeNV);
- builder.addCapability(spv::CapabilityShaderViewportMaskNV);
- builder.addExtension(spv::E_SPV_NV_viewport_array2);
- }
- if (glslangMember.getQualifier().layoutSecondaryViewportRelativeOffset != -2048){
- builder.addMemberDecoration(spvType, member,
- (spv::Decoration)spv::DecorationSecondaryViewportRelativeNV,
- glslangMember.getQualifier().layoutSecondaryViewportRelativeOffset);
- builder.addCapability(spv::CapabilityShaderStereoViewNV);
- builder.addExtension(spv::E_SPV_NV_stereo_view_rendering);
- }
- }
- if (glslangMember.getQualifier().layoutPassthrough) {
- builder.addMemberDecoration(spvType, member, (spv::Decoration)spv::DecorationPassthroughNV);
- builder.addCapability(spv::CapabilityGeometryShaderPassthroughNV);
- builder.addExtension(spv::E_SPV_NV_geometry_shader_passthrough);
- }
- #endif
- }
- // Decorate the structure
- builder.addDecoration(spvType, TranslateLayoutDecoration(type, qualifier.layoutMatrix));
- builder.addDecoration(spvType, TranslateBlockDecoration(type, glslangIntermediate->usingStorageBuffer()));
- if (type.getQualifier().hasStream() && glslangIntermediate->isMultiStream()) {
- builder.addCapability(spv::CapabilityGeometryStreams);
- builder.addDecoration(spvType, spv::DecorationStream, type.getQualifier().layoutStream);
- }
- }
- // Turn the expression forming the array size into an id.
- // This is not quite trivial, because of specialization constants.
- // Sometimes, a raw constant is turned into an Id, and sometimes
- // a specialization constant expression is.
- spv::Id TGlslangToSpvTraverser::makeArraySizeId(const glslang::TArraySizes& arraySizes, int dim)
- {
- // First, see if this is sized with a node, meaning a specialization constant:
- glslang::TIntermTyped* specNode = arraySizes.getDimNode(dim);
- if (specNode != nullptr) {
- builder.clearAccessChain();
- specNode->traverse(this);
- return accessChainLoad(specNode->getAsTyped()->getType());
- }
- // Otherwise, need a compile-time (front end) size, get it:
- int size = arraySizes.getDimSize(dim);
- assert(size > 0);
- return builder.makeUintConstant(size);
- }
- // Wrap the builder's accessChainLoad to:
- // - localize handling of RelaxedPrecision
- // - use the SPIR-V inferred type instead of another conversion of the glslang type
- // (avoids unnecessary work and possible type punning for structures)
- // - do conversion of concrete to abstract type
- spv::Id TGlslangToSpvTraverser::accessChainLoad(const glslang::TType& type)
- {
- spv::Id nominalTypeId = builder.accessChainGetInferredType();
- spv::Id loadedId = builder.accessChainLoad(TranslatePrecisionDecoration(type),
- TranslateNonUniformDecoration(type.getQualifier()), nominalTypeId);
- // Need to convert to abstract types when necessary
- if (type.getBasicType() == glslang::EbtBool) {
- if (builder.isScalarType(nominalTypeId)) {
- // Conversion for bool
- spv::Id boolType = builder.makeBoolType();
- if (nominalTypeId != boolType)
- loadedId = builder.createBinOp(spv::OpINotEqual, boolType, loadedId, builder.makeUintConstant(0));
- } else if (builder.isVectorType(nominalTypeId)) {
- // Conversion for bvec
- int vecSize = builder.getNumTypeComponents(nominalTypeId);
- spv::Id bvecType = builder.makeVectorType(builder.makeBoolType(), vecSize);
- if (nominalTypeId != bvecType)
- loadedId = builder.createBinOp(spv::OpINotEqual, bvecType, loadedId, makeSmearedConstant(builder.makeUintConstant(0), vecSize));
- }
- }
- return loadedId;
- }
- // Wrap the builder's accessChainStore to:
- // - do conversion of concrete to abstract type
- //
- // Implicitly uses the existing builder.accessChain as the storage target.
- void TGlslangToSpvTraverser::accessChainStore(const glslang::TType& type, spv::Id rvalue)
- {
- // Need to convert to abstract types when necessary
- if (type.getBasicType() == glslang::EbtBool) {
- spv::Id nominalTypeId = builder.accessChainGetInferredType();
- if (builder.isScalarType(nominalTypeId)) {
- // Conversion for bool
- spv::Id boolType = builder.makeBoolType();
- if (nominalTypeId != boolType) {
- // keep these outside arguments, for determinant order-of-evaluation
- spv::Id one = builder.makeUintConstant(1);
- spv::Id zero = builder.makeUintConstant(0);
- rvalue = builder.createTriOp(spv::OpSelect, nominalTypeId, rvalue, one, zero);
- } else if (builder.getTypeId(rvalue) != boolType)
- rvalue = builder.createBinOp(spv::OpINotEqual, boolType, rvalue, builder.makeUintConstant(0));
- } else if (builder.isVectorType(nominalTypeId)) {
- // Conversion for bvec
- int vecSize = builder.getNumTypeComponents(nominalTypeId);
- spv::Id bvecType = builder.makeVectorType(builder.makeBoolType(), vecSize);
- if (nominalTypeId != bvecType) {
- // keep these outside arguments, for determinant order-of-evaluation
- spv::Id one = makeSmearedConstant(builder.makeUintConstant(1), vecSize);
- spv::Id zero = makeSmearedConstant(builder.makeUintConstant(0), vecSize);
- rvalue = builder.createTriOp(spv::OpSelect, nominalTypeId, rvalue, one, zero);
- } else if (builder.getTypeId(rvalue) != bvecType)
- rvalue = builder.createBinOp(spv::OpINotEqual, bvecType, rvalue,
- makeSmearedConstant(builder.makeUintConstant(0), vecSize));
- }
- }
- builder.accessChainStore(rvalue);
- }
- // For storing when types match at the glslang level, but not might match at the
- // SPIR-V level.
- //
- // This especially happens when a single glslang type expands to multiple
- // SPIR-V types, like a struct that is used in a member-undecorated way as well
- // as in a member-decorated way.
- //
- // NOTE: This function can handle any store request; if it's not special it
- // simplifies to a simple OpStore.
- //
- // Implicitly uses the existing builder.accessChain as the storage target.
- void TGlslangToSpvTraverser::multiTypeStore(const glslang::TType& type, spv::Id rValue)
- {
- // we only do the complex path here if it's an aggregate
- if (! type.isStruct() && ! type.isArray()) {
- accessChainStore(type, rValue);
- return;
- }
- // and, it has to be a case of type aliasing
- spv::Id rType = builder.getTypeId(rValue);
- spv::Id lValue = builder.accessChainGetLValue();
- spv::Id lType = builder.getContainedTypeId(builder.getTypeId(lValue));
- if (lType == rType) {
- accessChainStore(type, rValue);
- return;
- }
- // Recursively (as needed) copy an aggregate type to a different aggregate type,
- // where the two types were the same type in GLSL. This requires member
- // by member copy, recursively.
- // If an array, copy element by element.
- if (type.isArray()) {
- glslang::TType glslangElementType(type, 0);
- spv::Id elementRType = builder.getContainedTypeId(rType);
- for (int index = 0; index < type.getOuterArraySize(); ++index) {
- // get the source member
- spv::Id elementRValue = builder.createCompositeExtract(rValue, elementRType, index);
- // set up the target storage
- builder.clearAccessChain();
- builder.setAccessChainLValue(lValue);
- builder.accessChainPush(builder.makeIntConstant(index));
- // store the member
- multiTypeStore(glslangElementType, elementRValue);
- }
- } else {
- assert(type.isStruct());
- // loop over structure members
- const glslang::TTypeList& members = *type.getStruct();
- for (int m = 0; m < (int)members.size(); ++m) {
- const glslang::TType& glslangMemberType = *members[m].type;
- // get the source member
- spv::Id memberRType = builder.getContainedTypeId(rType, m);
- spv::Id memberRValue = builder.createCompositeExtract(rValue, memberRType, m);
- // set up the target storage
- builder.clearAccessChain();
- builder.setAccessChainLValue(lValue);
- builder.accessChainPush(builder.makeIntConstant(m));
- // store the member
- multiTypeStore(glslangMemberType, memberRValue);
- }
- }
- }
- // Decide whether or not this type should be
- // decorated with offsets and strides, and if so
- // whether std140 or std430 rules should be applied.
- glslang::TLayoutPacking TGlslangToSpvTraverser::getExplicitLayout(const glslang::TType& type) const
- {
- // has to be a block
- if (type.getBasicType() != glslang::EbtBlock)
- return glslang::ElpNone;
- // has to be a uniform or buffer block
- if (type.getQualifier().storage != glslang::EvqUniform &&
- type.getQualifier().storage != glslang::EvqBuffer)
- return glslang::ElpNone;
- // return the layout to use
- switch (type.getQualifier().layoutPacking) {
- case glslang::ElpStd140:
- case glslang::ElpStd430:
- return type.getQualifier().layoutPacking;
- default:
- return glslang::ElpNone;
- }
- }
- // Given an array type, returns the integer stride required for that array
- int TGlslangToSpvTraverser::getArrayStride(const glslang::TType& arrayType, glslang::TLayoutPacking explicitLayout, glslang::TLayoutMatrix matrixLayout)
- {
- int size;
- int stride;
- glslangIntermediate->getBaseAlignment(arrayType, size, stride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
- return stride;
- }
- // Given a matrix type, or array (of array) of matrixes type, returns the integer stride required for that matrix
- // when used as a member of an interface block
- int TGlslangToSpvTraverser::getMatrixStride(const glslang::TType& matrixType, glslang::TLayoutPacking explicitLayout, glslang::TLayoutMatrix matrixLayout)
- {
- glslang::TType elementType;
- elementType.shallowCopy(matrixType);
- elementType.clearArraySizes();
- int size;
- int stride;
- glslangIntermediate->getBaseAlignment(elementType, size, stride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
- return stride;
- }
- // Given a member type of a struct, realign the current offset for it, and compute
- // the next (not yet aligned) offset for the next member, which will get aligned
- // on the next call.
- // 'currentOffset' should be passed in already initialized, ready to modify, and reflecting
- // the migration of data from nextOffset -> currentOffset. It should be -1 on the first call.
- // -1 means a non-forced member offset (no decoration needed).
- void TGlslangToSpvTraverser::updateMemberOffset(const glslang::TType& structType, const glslang::TType& memberType, int& currentOffset, int& nextOffset,
- glslang::TLayoutPacking explicitLayout, glslang::TLayoutMatrix matrixLayout)
- {
- // this will get a positive value when deemed necessary
- nextOffset = -1;
- // override anything in currentOffset with user-set offset
- if (memberType.getQualifier().hasOffset())
- currentOffset = memberType.getQualifier().layoutOffset;
- // It could be that current linker usage in glslang updated all the layoutOffset,
- // in which case the following code does not matter. But, that's not quite right
- // once cross-compilation unit GLSL validation is done, as the original user
- // settings are needed in layoutOffset, and then the following will come into play.
- if (explicitLayout == glslang::ElpNone) {
- if (! memberType.getQualifier().hasOffset())
- currentOffset = -1;
- return;
- }
- // Getting this far means we need explicit offsets
- if (currentOffset < 0)
- currentOffset = 0;
- // Now, currentOffset is valid (either 0, or from a previous nextOffset),
- // but possibly not yet correctly aligned.
- int memberSize;
- int dummyStride;
- int memberAlignment = glslangIntermediate->getBaseAlignment(memberType, memberSize, dummyStride, explicitLayout == glslang::ElpStd140, matrixLayout == glslang::ElmRowMajor);
- // Adjust alignment for HLSL rules
- // TODO: make this consistent in early phases of code:
- // adjusting this late means inconsistencies with earlier code, which for reflection is an issue
- // Until reflection is brought in sync with these adjustments, don't apply to $Global,
- // which is the most likely to rely on reflection, and least likely to rely implicit layouts
- if (glslangIntermediate->usingHlslOFfsets() &&
- ! memberType.isArray() && memberType.isVector() && structType.getTypeName().compare("$Global") != 0) {
- int dummySize;
- int componentAlignment = glslangIntermediate->getBaseAlignmentScalar(memberType, dummySize);
- if (componentAlignment <= 4)
- memberAlignment = componentAlignment;
- }
- // Bump up to member alignment
- glslang::RoundToPow2(currentOffset, memberAlignment);
- // Bump up to vec4 if there is a bad straddle
- if (glslangIntermediate->improperStraddle(memberType, memberSize, currentOffset))
- glslang::RoundToPow2(currentOffset, 16);
- nextOffset = currentOffset + memberSize;
- }
- void TGlslangToSpvTraverser::declareUseOfStructMember(const glslang::TTypeList& members, int glslangMember)
- {
- const glslang::TBuiltInVariable glslangBuiltIn = members[glslangMember].type->getQualifier().builtIn;
- switch (glslangBuiltIn)
- {
- case glslang::EbvClipDistance:
- case glslang::EbvCullDistance:
- case glslang::EbvPointSize:
- #ifdef NV_EXTENSIONS
- case glslang::EbvViewportMaskNV:
- case glslang::EbvSecondaryPositionNV:
- case glslang::EbvSecondaryViewportMaskNV:
- case glslang::EbvPositionPerViewNV:
- case glslang::EbvViewportMaskPerViewNV:
- #endif
- // Generate the associated capability. Delegate to TranslateBuiltInDecoration.
- // Alternately, we could just call this for any glslang built-in, since the
- // capability already guards against duplicates.
- TranslateBuiltInDecoration(glslangBuiltIn, false);
- break;
- default:
- // Capabilities were already generated when the struct was declared.
- break;
- }
- }
- bool TGlslangToSpvTraverser::isShaderEntryPoint(const glslang::TIntermAggregate* node)
- {
- return node->getName().compare(glslangIntermediate->getEntryPointMangledName().c_str()) == 0;
- }
- // Does parameter need a place to keep writes, separate from the original?
- // Assumes called after originalParam(), which filters out block/buffer/opaque-based
- // qualifiers such that we should have only in/out/inout/constreadonly here.
- bool TGlslangToSpvTraverser::writableParam(glslang::TStorageQualifier qualifier) const
- {
- assert(qualifier == glslang::EvqIn ||
- qualifier == glslang::EvqOut ||
- qualifier == glslang::EvqInOut ||
- qualifier == glslang::EvqConstReadOnly);
- return qualifier != glslang::EvqConstReadOnly;
- }
- // Is parameter pass-by-original?
- bool TGlslangToSpvTraverser::originalParam(glslang::TStorageQualifier qualifier, const glslang::TType& paramType,
- bool implicitThisParam)
- {
- if (implicitThisParam) // implicit this
- return true;
- if (glslangIntermediate->getSource() == glslang::EShSourceHlsl)
- return paramType.getBasicType() == glslang::EbtBlock;
- return paramType.containsOpaque() || // sampler, etc.
- (paramType.getBasicType() == glslang::EbtBlock && qualifier == glslang::EvqBuffer); // SSBO
- }
- // Make all the functions, skeletally, without actually visiting their bodies.
- void TGlslangToSpvTraverser::makeFunctions(const glslang::TIntermSequence& glslFunctions)
- {
- const auto getParamDecorations = [](std::vector<spv::Decoration>& decorations, const glslang::TType& type) {
- spv::Decoration paramPrecision = TranslatePrecisionDecoration(type);
- if (paramPrecision != spv::NoPrecision)
- decorations.push_back(paramPrecision);
- TranslateMemoryDecoration(type.getQualifier(), decorations);
- };
- for (int f = 0; f < (int)glslFunctions.size(); ++f) {
- glslang::TIntermAggregate* glslFunction = glslFunctions[f]->getAsAggregate();
- if (! glslFunction || glslFunction->getOp() != glslang::EOpFunction || isShaderEntryPoint(glslFunction))
- continue;
- // We're on a user function. Set up the basic interface for the function now,
- // so that it's available to call. Translating the body will happen later.
- //
- // Typically (except for a "const in" parameter), an address will be passed to the
- // function. What it is an address of varies:
- //
- // - "in" parameters not marked as "const" can be written to without modifying the calling
- // argument so that write needs to be to a copy, hence the address of a copy works.
- //
- // - "const in" parameters can just be the r-value, as no writes need occur.
- //
- // - "out" and "inout" arguments can't be done as pointers to the calling argument, because
- // GLSL has copy-in/copy-out semantics. They can be handled though with a pointer to a copy.
- std::vector<spv::Id> paramTypes;
- std::vector<std::vector<spv::Decoration>> paramDecorations; // list of decorations per parameter
- glslang::TIntermSequence& parameters = glslFunction->getSequence()[0]->getAsAggregate()->getSequence();
- bool implicitThis = (int)parameters.size() > 0 && parameters[0]->getAsSymbolNode()->getName() ==
- glslangIntermediate->implicitThisName;
- paramDecorations.resize(parameters.size());
- for (int p = 0; p < (int)parameters.size(); ++p) {
- const glslang::TType& paramType = parameters[p]->getAsTyped()->getType();
- spv::Id typeId = convertGlslangToSpvType(paramType);
- if (originalParam(paramType.getQualifier().storage, paramType, implicitThis && p == 0))
- typeId = builder.makePointer(TranslateStorageClass(paramType), typeId);
- else if (writableParam(paramType.getQualifier().storage))
- typeId = builder.makePointer(spv::StorageClassFunction, typeId);
- else
- rValueParameters.insert(parameters[p]->getAsSymbolNode()->getId());
- getParamDecorations(paramDecorations[p], paramType);
- paramTypes.push_back(typeId);
- }
- spv::Block* functionBlock;
- spv::Function *function = builder.makeFunctionEntry(TranslatePrecisionDecoration(glslFunction->getType()),
- convertGlslangToSpvType(glslFunction->getType()),
- glslFunction->getName().c_str(), paramTypes,
- paramDecorations, &functionBlock);
- if (implicitThis)
- function->setImplicitThis();
- // Track function to emit/call later
- functionMap[glslFunction->getName().c_str()] = function;
- // Set the parameter id's
- for (int p = 0; p < (int)parameters.size(); ++p) {
- symbolValues[parameters[p]->getAsSymbolNode()->getId()] = function->getParamId(p);
- // give a name too
- builder.addName(function->getParamId(p), parameters[p]->getAsSymbolNode()->getName().c_str());
- }
- }
- }
- // Process all the initializers, while skipping the functions and link objects
- void TGlslangToSpvTraverser::makeGlobalInitializers(const glslang::TIntermSequence& initializers)
- {
- builder.setBuildPoint(shaderEntry->getLastBlock());
- for (int i = 0; i < (int)initializers.size(); ++i) {
- glslang::TIntermAggregate* initializer = initializers[i]->getAsAggregate();
- if (initializer && initializer->getOp() != glslang::EOpFunction && initializer->getOp() != glslang::EOpLinkerObjects) {
- // We're on a top-level node that's not a function. Treat as an initializer, whose
- // code goes into the beginning of the entry point.
- initializer->traverse(this);
- }
- }
- }
- // Process all the functions, while skipping initializers.
- void TGlslangToSpvTraverser::visitFunctions(const glslang::TIntermSequence& glslFunctions)
- {
- for (int f = 0; f < (int)glslFunctions.size(); ++f) {
- glslang::TIntermAggregate* node = glslFunctions[f]->getAsAggregate();
- if (node && (node->getOp() == glslang::EOpFunction || node->getOp() == glslang::EOpLinkerObjects))
- node->traverse(this);
- }
- }
- void TGlslangToSpvTraverser::handleFunctionEntry(const glslang::TIntermAggregate* node)
- {
- // SPIR-V functions should already be in the functionMap from the prepass
- // that called makeFunctions().
- currentFunction = functionMap[node->getName().c_str()];
- spv::Block* functionBlock = currentFunction->getEntryBlock();
- builder.setBuildPoint(functionBlock);
- }
- void TGlslangToSpvTraverser::translateArguments(const glslang::TIntermAggregate& node, std::vector<spv::Id>& arguments)
- {
- const glslang::TIntermSequence& glslangArguments = node.getSequence();
- glslang::TSampler sampler = {};
- bool cubeCompare = false;
- #ifdef AMD_EXTENSIONS
- bool f16ShadowCompare = false;
- #endif
- if (node.isTexture() || node.isImage()) {
- sampler = glslangArguments[0]->getAsTyped()->getType().getSampler();
- cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
- #ifdef AMD_EXTENSIONS
- f16ShadowCompare = sampler.shadow && glslangArguments[1]->getAsTyped()->getType().getBasicType() == glslang::EbtFloat16;
- #endif
- }
- for (int i = 0; i < (int)glslangArguments.size(); ++i) {
- builder.clearAccessChain();
- glslangArguments[i]->traverse(this);
- // Special case l-value operands
- bool lvalue = false;
- switch (node.getOp()) {
- case glslang::EOpImageAtomicAdd:
- case glslang::EOpImageAtomicMin:
- case glslang::EOpImageAtomicMax:
- case glslang::EOpImageAtomicAnd:
- case glslang::EOpImageAtomicOr:
- case glslang::EOpImageAtomicXor:
- case glslang::EOpImageAtomicExchange:
- case glslang::EOpImageAtomicCompSwap:
- if (i == 0)
- lvalue = true;
- break;
- case glslang::EOpSparseImageLoad:
- if ((sampler.ms && i == 3) || (! sampler.ms && i == 2))
- lvalue = true;
- break;
- #ifdef AMD_EXTENSIONS
- case glslang::EOpSparseTexture:
- if (((cubeCompare || f16ShadowCompare) && i == 3) || (! (cubeCompare || f16ShadowCompare) && i == 2))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureClamp:
- if (((cubeCompare || f16ShadowCompare) && i == 4) || (! (cubeCompare || f16ShadowCompare) && i == 3))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureLod:
- case glslang::EOpSparseTextureOffset:
- if ((f16ShadowCompare && i == 4) || (! f16ShadowCompare && i == 3))
- lvalue = true;
- break;
- #else
- case glslang::EOpSparseTexture:
- if ((cubeCompare && i == 3) || (! cubeCompare && i == 2))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureClamp:
- if ((cubeCompare && i == 4) || (! cubeCompare && i == 3))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureLod:
- case glslang::EOpSparseTextureOffset:
- if (i == 3)
- lvalue = true;
- break;
- #endif
- case glslang::EOpSparseTextureFetch:
- if ((sampler.dim != glslang::EsdRect && i == 3) || (sampler.dim == glslang::EsdRect && i == 2))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureFetchOffset:
- if ((sampler.dim != glslang::EsdRect && i == 4) || (sampler.dim == glslang::EsdRect && i == 3))
- lvalue = true;
- break;
- #ifdef AMD_EXTENSIONS
- case glslang::EOpSparseTextureLodOffset:
- case glslang::EOpSparseTextureGrad:
- case glslang::EOpSparseTextureOffsetClamp:
- if ((f16ShadowCompare && i == 5) || (! f16ShadowCompare && i == 4))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGradOffset:
- case glslang::EOpSparseTextureGradClamp:
- if ((f16ShadowCompare && i == 6) || (! f16ShadowCompare && i == 5))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGradOffsetClamp:
- if ((f16ShadowCompare && i == 7) || (! f16ShadowCompare && i == 6))
- lvalue = true;
- break;
- #else
- case glslang::EOpSparseTextureLodOffset:
- case glslang::EOpSparseTextureGrad:
- case glslang::EOpSparseTextureOffsetClamp:
- if (i == 4)
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGradOffset:
- case glslang::EOpSparseTextureGradClamp:
- if (i == 5)
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGradOffsetClamp:
- if (i == 6)
- lvalue = true;
- break;
- #endif
- case glslang::EOpSparseTextureGather:
- if ((sampler.shadow && i == 3) || (! sampler.shadow && i == 2))
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGatherOffset:
- case glslang::EOpSparseTextureGatherOffsets:
- if ((sampler.shadow && i == 4) || (! sampler.shadow && i == 3))
- lvalue = true;
- break;
- #ifdef AMD_EXTENSIONS
- case glslang::EOpSparseTextureGatherLod:
- if (i == 3)
- lvalue = true;
- break;
- case glslang::EOpSparseTextureGatherLodOffset:
- case glslang::EOpSparseTextureGatherLodOffsets:
- if (i == 4)
- lvalue = true;
- break;
- case glslang::EOpSparseImageLoadLod:
- if (i == 3)
- lvalue = true;
- break;
- #endif
- default:
- break;
- }
- if (lvalue)
- arguments.push_back(builder.accessChainGetLValue());
- else
- arguments.push_back(accessChainLoad(glslangArguments[i]->getAsTyped()->getType()));
- }
- }
- void TGlslangToSpvTraverser::translateArguments(glslang::TIntermUnary& node, std::vector<spv::Id>& arguments)
- {
- builder.clearAccessChain();
- node.getOperand()->traverse(this);
- arguments.push_back(accessChainLoad(node.getOperand()->getType()));
- }
- spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermOperator* node)
- {
- if (! node->isImage() && ! node->isTexture())
- return spv::NoResult;
- builder.setLine(node->getLoc().line);
- // Process a GLSL texturing op (will be SPV image)
- const glslang::TSampler sampler = node->getAsAggregate() ? node->getAsAggregate()->getSequence()[0]->getAsTyped()->getType().getSampler()
- : node->getAsUnaryNode()->getOperand()->getAsTyped()->getType().getSampler();
- #ifdef AMD_EXTENSIONS
- bool f16ShadowCompare = (sampler.shadow && node->getAsAggregate())
- ? node->getAsAggregate()->getSequence()[1]->getAsTyped()->getType().getBasicType() == glslang::EbtFloat16
- : false;
- #endif
- std::vector<spv::Id> arguments;
- if (node->getAsAggregate())
- translateArguments(*node->getAsAggregate(), arguments);
- else
- translateArguments(*node->getAsUnaryNode(), arguments);
- spv::Decoration precision = TranslatePrecisionDecoration(node->getOperationPrecision());
- spv::Builder::TextureParameters params = { };
- params.sampler = arguments[0];
- glslang::TCrackedTextureOp cracked;
- node->crackTexture(sampler, cracked);
- const bool isUnsignedResult = node->getType().getBasicType() == glslang::EbtUint;
- // Check for queries
- if (cracked.query) {
- // OpImageQueryLod works on a sampled image, for other queries the image has to be extracted first
- if (node->getOp() != glslang::EOpTextureQueryLod && builder.isSampledImage(params.sampler))
- params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
- switch (node->getOp()) {
- case glslang::EOpImageQuerySize:
- case glslang::EOpTextureQuerySize:
- if (arguments.size() > 1) {
- params.lod = arguments[1];
- return builder.createTextureQueryCall(spv::OpImageQuerySizeLod, params, isUnsignedResult);
- } else
- return builder.createTextureQueryCall(spv::OpImageQuerySize, params, isUnsignedResult);
- case glslang::EOpImageQuerySamples:
- case glslang::EOpTextureQuerySamples:
- return builder.createTextureQueryCall(spv::OpImageQuerySamples, params, isUnsignedResult);
- case glslang::EOpTextureQueryLod:
- params.coords = arguments[1];
- return builder.createTextureQueryCall(spv::OpImageQueryLod, params, isUnsignedResult);
- case glslang::EOpTextureQueryLevels:
- return builder.createTextureQueryCall(spv::OpImageQueryLevels, params, isUnsignedResult);
- case glslang::EOpSparseTexelsResident:
- return builder.createUnaryOp(spv::OpImageSparseTexelsResident, builder.makeBoolType(), arguments[0]);
- default:
- assert(0);
- break;
- }
- }
- int components = node->getType().getVectorSize();
- if (node->getOp() == glslang::EOpTextureFetch) {
- // These must produce 4 components, per SPIR-V spec. We'll add a conversion constructor if needed.
- // This will only happen through the HLSL path for operator[], so we do not have to handle e.g.
- // the EOpTexture/Proj/Lod/etc family. It would be harmless to do so, but would need more logic
- // here around e.g. which ones return scalars or other types.
- components = 4;
- }
- glslang::TType returnType(node->getType().getBasicType(), glslang::EvqTemporary, components);
- auto resultType = [&returnType,this]{ return convertGlslangToSpvType(returnType); };
- // Check for image functions other than queries
- if (node->isImage()) {
- std::vector<spv::IdImmediate> operands;
- auto opIt = arguments.begin();
- spv::IdImmediate image = { true, *(opIt++) };
- operands.push_back(image);
- // Handle subpass operations
- // TODO: GLSL should change to have the "MS" only on the type rather than the
- // built-in function.
- if (cracked.subpass) {
- // add on the (0,0) coordinate
- spv::Id zero = builder.makeIntConstant(0);
- std::vector<spv::Id> comps;
- comps.push_back(zero);
- comps.push_back(zero);
- spv::IdImmediate coord = { true,
- builder.makeCompositeConstant(builder.makeVectorType(builder.makeIntType(32), 2), comps) };
- operands.push_back(coord);
- if (sampler.ms) {
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsSampleMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *(opIt++) };
- operands.push_back(imageOperand);
- }
- spv::Id result = builder.createOp(spv::OpImageRead, resultType(), operands);
- builder.setPrecision(result, precision);
- return result;
- }
- spv::IdImmediate coord = { true, *(opIt++) };
- operands.push_back(coord);
- #ifdef AMD_EXTENSIONS
- if (node->getOp() == glslang::EOpImageLoad || node->getOp() == glslang::EOpImageLoadLod) {
- #else
- if (node->getOp() == glslang::EOpImageLoad) {
- #endif
- if (sampler.ms) {
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsSampleMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt };
- operands.push_back(imageOperand);
- #ifdef AMD_EXTENSIONS
- } else if (cracked.lod) {
- builder.addExtension(spv::E_SPV_AMD_shader_image_load_store_lod);
- builder.addCapability(spv::CapabilityImageReadWriteLodAMD);
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsLodMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt };
- operands.push_back(imageOperand);
- #endif
- }
- if (builder.getImageTypeFormat(builder.getImageType(operands.front().word)) == spv::ImageFormatUnknown)
- builder.addCapability(spv::CapabilityStorageImageReadWithoutFormat);
- std::vector<spv::Id> result(1, builder.createOp(spv::OpImageRead, resultType(), operands));
- builder.setPrecision(result[0], precision);
- // If needed, add a conversion constructor to the proper size.
- if (components != node->getType().getVectorSize())
- result[0] = builder.createConstructor(precision, result, convertGlslangToSpvType(node->getType()));
- return result[0];
- #ifdef AMD_EXTENSIONS
- } else if (node->getOp() == glslang::EOpImageStore || node->getOp() == glslang::EOpImageStoreLod) {
- #else
- } else if (node->getOp() == glslang::EOpImageStore) {
- #endif
- if (sampler.ms) {
- spv::IdImmediate texel = { true, *(opIt + 1) };
- operands.push_back(texel);
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsSampleMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt };
- operands.push_back(imageOperand);
- #ifdef AMD_EXTENSIONS
- } else if (cracked.lod) {
- builder.addExtension(spv::E_SPV_AMD_shader_image_load_store_lod);
- builder.addCapability(spv::CapabilityImageReadWriteLodAMD);
- spv::IdImmediate texel = { true, *(opIt + 1) };
- operands.push_back(texel);
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsLodMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt };
- operands.push_back(imageOperand);
- #endif
- } else {
- spv::IdImmediate texel = { true, *opIt };
- operands.push_back(texel);
- }
- builder.createNoResultOp(spv::OpImageWrite, operands);
- if (builder.getImageTypeFormat(builder.getImageType(operands.front().word)) == spv::ImageFormatUnknown)
- builder.addCapability(spv::CapabilityStorageImageWriteWithoutFormat);
- return spv::NoResult;
- #ifdef AMD_EXTENSIONS
- } else if (node->getOp() == glslang::EOpSparseImageLoad || node->getOp() == glslang::EOpSparseImageLoadLod) {
- #else
- } else if (node->getOp() == glslang::EOpSparseImageLoad) {
- #endif
- builder.addCapability(spv::CapabilitySparseResidency);
- if (builder.getImageTypeFormat(builder.getImageType(operands.front().word)) == spv::ImageFormatUnknown)
- builder.addCapability(spv::CapabilityStorageImageReadWithoutFormat);
- if (sampler.ms) {
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsSampleMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt++ };
- operands.push_back(imageOperand);
- #ifdef AMD_EXTENSIONS
- } else if (cracked.lod) {
- builder.addExtension(spv::E_SPV_AMD_shader_image_load_store_lod);
- builder.addCapability(spv::CapabilityImageReadWriteLodAMD);
- spv::IdImmediate imageOperands = { false, spv::ImageOperandsLodMask };
- operands.push_back(imageOperands);
- spv::IdImmediate imageOperand = { true, *opIt++ };
- operands.push_back(imageOperand);
- #endif
- }
- // Create the return type that was a special structure
- spv::Id texelOut = *opIt;
- spv::Id typeId0 = resultType();
- spv::Id typeId1 = builder.getDerefTypeId(texelOut);
- spv::Id resultTypeId = builder.makeStructResultType(typeId0, typeId1);
- spv::Id resultId = builder.createOp(spv::OpImageSparseRead, resultTypeId, operands);
- // Decode the return type
- builder.createStore(builder.createCompositeExtract(resultId, typeId1, 1), texelOut);
- return builder.createCompositeExtract(resultId, typeId0, 0);
- } else {
- // Process image atomic operations
- // GLSL "IMAGE_PARAMS" will involve in constructing an image texel pointer and this pointer,
- // as the first source operand, is required by SPIR-V atomic operations.
- // For non-MS, the sample value should be 0
- spv::IdImmediate sample = { true, sampler.ms ? *(opIt++) : builder.makeUintConstant(0) };
- operands.push_back(sample);
- spv::Id resultTypeId = builder.makePointer(spv::StorageClassImage, resultType());
- spv::Id pointer = builder.createOp(spv::OpImageTexelPointer, resultTypeId, operands);
- std::vector<spv::Id> operands;
- operands.push_back(pointer);
- for (; opIt != arguments.end(); ++opIt)
- operands.push_back(*opIt);
- return createAtomicOperation(node->getOp(), precision, resultType(), operands, node->getBasicType());
- }
- }
- #ifdef AMD_EXTENSIONS
- // Check for fragment mask functions other than queries
- if (cracked.fragMask) {
- assert(sampler.ms);
- auto opIt = arguments.begin();
- std::vector<spv::Id> operands;
- // Extract the image if necessary
- if (builder.isSampledImage(params.sampler))
- params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
- operands.push_back(params.sampler);
- ++opIt;
- if (sampler.isSubpass()) {
- // add on the (0,0) coordinate
- spv::Id zero = builder.makeIntConstant(0);
- std::vector<spv::Id> comps;
- comps.push_back(zero);
- comps.push_back(zero);
- operands.push_back(builder.makeCompositeConstant(builder.makeVectorType(builder.makeIntType(32), 2), comps));
- }
- for (; opIt != arguments.end(); ++opIt)
- operands.push_back(*opIt);
- spv::Op fragMaskOp = spv::OpNop;
- if (node->getOp() == glslang::EOpFragmentMaskFetch)
- fragMaskOp = spv::OpFragmentMaskFetchAMD;
- else if (node->getOp() == glslang::EOpFragmentFetch)
- fragMaskOp = spv::OpFragmentFetchAMD;
- builder.addExtension(spv::E_SPV_AMD_shader_fragment_mask);
- builder.addCapability(spv::CapabilityFragmentMaskAMD);
- return builder.createOp(fragMaskOp, resultType(), operands);
- }
- #endif
- // Check for texture functions other than queries
- bool sparse = node->isSparseTexture();
- bool cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
- // check for bias argument
- bool bias = false;
- #ifdef AMD_EXTENSIONS
- if (! cracked.lod && ! cracked.grad && ! cracked.fetch && ! cubeCompare) {
- #else
- if (! cracked.lod && ! cracked.gather && ! cracked.grad && ! cracked.fetch && ! cubeCompare) {
- #endif
- int nonBiasArgCount = 2;
- #ifdef AMD_EXTENSIONS
- if (cracked.gather)
- ++nonBiasArgCount; // comp argument should be present when bias argument is present
- if (f16ShadowCompare)
- ++nonBiasArgCount;
- #endif
- if (cracked.offset)
- ++nonBiasArgCount;
- #ifdef AMD_EXTENSIONS
- else if (cracked.offsets)
- ++nonBiasArgCount;
- #endif
- if (cracked.grad)
- nonBiasArgCount += 2;
- if (cracked.lodClamp)
- ++nonBiasArgCount;
- if (sparse)
- ++nonBiasArgCount;
- if ((int)arguments.size() > nonBiasArgCount)
- bias = true;
- }
- // See if the sampler param should really be just the SPV image part
- if (cracked.fetch) {
- // a fetch needs to have the image extracted first
- if (builder.isSampledImage(params.sampler))
- params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
- }
- #ifdef AMD_EXTENSIONS
- if (cracked.gather) {
- const auto& sourceExtensions = glslangIntermediate->getRequestedExtensions();
- if (bias || cracked.lod ||
- sourceExtensions.find(glslang::E_GL_AMD_texture_gather_bias_lod) != sourceExtensions.end()) {
- builder.addExtension(spv::E_SPV_AMD_texture_gather_bias_lod);
- builder.addCapability(spv::CapabilityImageGatherBiasLodAMD);
- }
- }
- #endif
- // set the rest of the arguments
- params.coords = arguments[1];
- int extraArgs = 0;
- bool noImplicitLod = false;
- // sort out where Dref is coming from
- #ifdef AMD_EXTENSIONS
- if (cubeCompare || f16ShadowCompare) {
- #else
- if (cubeCompare) {
- #endif
- params.Dref = arguments[2];
- ++extraArgs;
- } else if (sampler.shadow && cracked.gather) {
- params.Dref = arguments[2];
- ++extraArgs;
- } else if (sampler.shadow) {
- std::vector<spv::Id> indexes;
- int dRefComp;
- if (cracked.proj)
- dRefComp = 2; // "The resulting 3rd component of P in the shadow forms is used as Dref"
- else
- dRefComp = builder.getNumComponents(params.coords) - 1;
- indexes.push_back(dRefComp);
- params.Dref = builder.createCompositeExtract(params.coords, builder.getScalarTypeId(builder.getTypeId(params.coords)), indexes);
- }
- // lod
- if (cracked.lod) {
- params.lod = arguments[2 + extraArgs];
- ++extraArgs;
- } else if (glslangIntermediate->getStage() != EShLangFragment) {
- // we need to invent the default lod for an explicit lod instruction for a non-fragment stage
- noImplicitLod = true;
- }
- // multisample
- if (sampler.ms) {
- params.sample = arguments[2 + extraArgs]; // For MS, "sample" should be specified
- ++extraArgs;
- }
- // gradient
- if (cracked.grad) {
- params.gradX = arguments[2 + extraArgs];
- params.gradY = arguments[3 + extraArgs];
- extraArgs += 2;
- }
- // offset and offsets
- if (cracked.offset) {
- params.offset = arguments[2 + extraArgs];
- ++extraArgs;
- } else if (cracked.offsets) {
- params.offsets = arguments[2 + extraArgs];
- ++extraArgs;
- }
- // lod clamp
- if (cracked.lodClamp) {
- params.lodClamp = arguments[2 + extraArgs];
- ++extraArgs;
- }
- // sparse
- if (sparse) {
- params.texelOut = arguments[2 + extraArgs];
- ++extraArgs;
- }
- // gather component
- if (cracked.gather && ! sampler.shadow) {
- // default component is 0, if missing, otherwise an argument
- if (2 + extraArgs < (int)arguments.size()) {
- params.component = arguments[2 + extraArgs];
- ++extraArgs;
- } else
- params.component = builder.makeIntConstant(0);
- }
- // bias
- if (bias) {
- params.bias = arguments[2 + extraArgs];
- ++extraArgs;
- }
- // projective component (might not to move)
- // GLSL: "The texture coordinates consumed from P, not including the last component of P,
- // are divided by the last component of P."
- // SPIR-V: "... (u [, v] [, w], q)... It may be a vector larger than needed, but all
- // unused components will appear after all used components."
- if (cracked.proj) {
- int projSourceComp = builder.getNumComponents(params.coords) - 1;
- int projTargetComp;
- switch (sampler.dim) {
- case glslang::Esd1D: projTargetComp = 1; break;
- case glslang::Esd2D: projTargetComp = 2; break;
- case glslang::EsdRect: projTargetComp = 2; break;
- default: projTargetComp = projSourceComp; break;
- }
- // copy the projective coordinate if we have to
- if (projTargetComp != projSourceComp) {
- spv::Id projComp = builder.createCompositeExtract(params.coords,
- builder.getScalarTypeId(builder.getTypeId(params.coords)),
- projSourceComp);
- params.coords = builder.createCompositeInsert(projComp, params.coords,
- builder.getTypeId(params.coords), projTargetComp);
- }
- }
- std::vector<spv::Id> result( 1,
- builder.createTextureCall(precision, resultType(), sparse, cracked.fetch, cracked.proj, cracked.gather, noImplicitLod, params)
- );
- if (components != node->getType().getVectorSize())
- result[0] = builder.createConstructor(precision, result, convertGlslangToSpvType(node->getType()));
- return result[0];
- }
- spv::Id TGlslangToSpvTraverser::handleUserFunctionCall(const glslang::TIntermAggregate* node)
- {
- // Grab the function's pointer from the previously created function
- spv::Function* function = functionMap[node->getName().c_str()];
- if (! function)
- return 0;
- const glslang::TIntermSequence& glslangArgs = node->getSequence();
- const glslang::TQualifierList& qualifiers = node->getQualifierList();
- // See comments in makeFunctions() for details about the semantics for parameter passing.
- //
- // These imply we need a four step process:
- // 1. Evaluate the arguments
- // 2. Allocate and make copies of in, out, and inout arguments
- // 3. Make the call
- // 4. Copy back the results
- // 1. Evaluate the arguments and their types
- std::vector<spv::Builder::AccessChain> lValues;
- std::vector<spv::Id> rValues;
- std::vector<const glslang::TType*> argTypes;
- for (int a = 0; a < (int)glslangArgs.size(); ++a) {
- argTypes.push_back(&glslangArgs[a]->getAsTyped()->getType());
- // build l-value
- builder.clearAccessChain();
- glslangArgs[a]->traverse(this);
- // keep outputs and pass-by-originals as l-values, evaluate others as r-values
- if (originalParam(qualifiers[a], *argTypes[a], function->hasImplicitThis() && a == 0) ||
- writableParam(qualifiers[a])) {
- // save l-value
- lValues.push_back(builder.getAccessChain());
- } else {
- // process r-value
- rValues.push_back(accessChainLoad(*argTypes.back()));
- }
- }
- // 2. Allocate space for anything needing a copy, and if it's "in" or "inout"
- // copy the original into that space.
- //
- // Also, build up the list of actual arguments to pass in for the call
- int lValueCount = 0;
- int rValueCount = 0;
- std::vector<spv::Id> spvArgs;
- for (int a = 0; a < (int)glslangArgs.size(); ++a) {
- spv::Id arg;
- if (originalParam(qualifiers[a], *argTypes[a], function->hasImplicitThis() && a == 0)) {
- builder.setAccessChain(lValues[lValueCount]);
- arg = builder.accessChainGetLValue();
- ++lValueCount;
- } else if (writableParam(qualifiers[a])) {
- // need space to hold the copy
- arg = builder.createVariable(spv::StorageClassFunction, builder.getContainedTypeId(function->getParamType(a)), "param");
- if (qualifiers[a] == glslang::EvqIn || qualifiers[a] == glslang::EvqInOut) {
- // need to copy the input into output space
- builder.setAccessChain(lValues[lValueCount]);
- spv::Id copy = accessChainLoad(*argTypes[a]);
- builder.clearAccessChain();
- builder.setAccessChainLValue(arg);
- multiTypeStore(*argTypes[a], copy);
- }
- ++lValueCount;
- } else {
- // process r-value, which involves a copy for a type mismatch
- if (function->getParamType(a) != convertGlslangToSpvType(*argTypes[a])) {
- spv::Id argCopy = builder.createVariable(spv::StorageClassFunction, function->getParamType(a), "arg");
- builder.clearAccessChain();
- builder.setAccessChainLValue(argCopy);
- multiTypeStore(*argTypes[a], rValues[rValueCount]);
- arg = builder.createLoad(argCopy);
- } else
- arg = rValues[rValueCount];
- ++rValueCount;
- }
- spvArgs.push_back(arg);
- }
- // 3. Make the call.
- spv::Id result = builder.createFunctionCall(function, spvArgs);
- builder.setPrecision(result, TranslatePrecisionDecoration(node->getType()));
- // 4. Copy back out an "out" arguments.
- lValueCount = 0;
- for (int a = 0; a < (int)glslangArgs.size(); ++a) {
- if (originalParam(qualifiers[a], *argTypes[a], function->hasImplicitThis() && a == 0))
- ++lValueCount;
- else if (writableParam(qualifiers[a])) {
- if (qualifiers[a] == glslang::EvqOut || qualifiers[a] == glslang::EvqInOut) {
- spv::Id copy = builder.createLoad(spvArgs[a]);
- builder.setAccessChain(lValues[lValueCount]);
- multiTypeStore(*argTypes[a], copy);
- }
- ++lValueCount;
- }
- }
- return result;
- }
- // Translate AST operation to SPV operation, already having SPV-based operands/types.
- spv::Id TGlslangToSpvTraverser::createBinaryOperation(glslang::TOperator op, OpDecorations& decorations,
- spv::Id typeId, spv::Id left, spv::Id right,
- glslang::TBasicType typeProxy, bool reduceComparison)
- {
- bool isUnsigned = isTypeUnsignedInt(typeProxy);
- bool isFloat = isTypeFloat(typeProxy);
- bool isBool = typeProxy == glslang::EbtBool;
- spv::Op binOp = spv::OpNop;
- bool needMatchingVectors = true; // for non-matrix ops, would a scalar need to smear to match a vector?
- bool comparison = false;
- switch (op) {
- case glslang::EOpAdd:
- case glslang::EOpAddAssign:
- if (isFloat)
- binOp = spv::OpFAdd;
- else
- binOp = spv::OpIAdd;
- break;
- case glslang::EOpSub:
- case glslang::EOpSubAssign:
- if (isFloat)
- binOp = spv::OpFSub;
- else
- binOp = spv::OpISub;
- break;
- case glslang::EOpMul:
- case glslang::EOpMulAssign:
- if (isFloat)
- binOp = spv::OpFMul;
- else
- binOp = spv::OpIMul;
- break;
- case glslang::EOpVectorTimesScalar:
- case glslang::EOpVectorTimesScalarAssign:
- if (isFloat && (builder.isVector(left) || builder.isVector(right))) {
- if (builder.isVector(right))
- std::swap(left, right);
- assert(builder.isScalar(right));
- needMatchingVectors = false;
- binOp = spv::OpVectorTimesScalar;
- } else
- binOp = spv::OpIMul;
- break;
- case glslang::EOpVectorTimesMatrix:
- case glslang::EOpVectorTimesMatrixAssign:
- binOp = spv::OpVectorTimesMatrix;
- break;
- case glslang::EOpMatrixTimesVector:
- binOp = spv::OpMatrixTimesVector;
- break;
- case glslang::EOpMatrixTimesScalar:
- case glslang::EOpMatrixTimesScalarAssign:
- binOp = spv::OpMatrixTimesScalar;
- break;
- case glslang::EOpMatrixTimesMatrix:
- case glslang::EOpMatrixTimesMatrixAssign:
- binOp = spv::OpMatrixTimesMatrix;
- break;
- case glslang::EOpOuterProduct:
- binOp = spv::OpOuterProduct;
- needMatchingVectors = false;
- break;
- case glslang::EOpDiv:
- case glslang::EOpDivAssign:
- if (isFloat)
- binOp = spv::OpFDiv;
- else if (isUnsigned)
- binOp = spv::OpUDiv;
- else
- binOp = spv::OpSDiv;
- break;
- case glslang::EOpMod:
- case glslang::EOpModAssign:
- if (isFloat)
- binOp = spv::OpFMod;
- else if (isUnsigned)
- binOp = spv::OpUMod;
- else
- binOp = spv::OpSMod;
- break;
- case glslang::EOpRightShift:
- case glslang::EOpRightShiftAssign:
- if (isUnsigned)
- binOp = spv::OpShiftRightLogical;
- else
- binOp = spv::OpShiftRightArithmetic;
- break;
- case glslang::EOpLeftShift:
- case glslang::EOpLeftShiftAssign:
- binOp = spv::OpShiftLeftLogical;
- break;
- case glslang::EOpAnd:
- case glslang::EOpAndAssign:
- binOp = spv::OpBitwiseAnd;
- break;
- case glslang::EOpLogicalAnd:
- needMatchingVectors = false;
- binOp = spv::OpLogicalAnd;
- break;
- case glslang::EOpInclusiveOr:
- case glslang::EOpInclusiveOrAssign:
- binOp = spv::OpBitwiseOr;
- break;
- case glslang::EOpLogicalOr:
- needMatchingVectors = false;
- binOp = spv::OpLogicalOr;
- break;
- case glslang::EOpExclusiveOr:
- case glslang::EOpExclusiveOrAssign:
- binOp = spv::OpBitwiseXor;
- break;
- case glslang::EOpLogicalXor:
- needMatchingVectors = false;
- binOp = spv::OpLogicalNotEqual;
- break;
- case glslang::EOpLessThan:
- case glslang::EOpGreaterThan:
- case glslang::EOpLessThanEqual:
- case glslang::EOpGreaterThanEqual:
- case glslang::EOpEqual:
- case glslang::EOpNotEqual:
- case glslang::EOpVectorEqual:
- case glslang::EOpVectorNotEqual:
- comparison = true;
- break;
- default:
- break;
- }
- // handle mapped binary operations (should be non-comparison)
- if (binOp != spv::OpNop) {
- assert(comparison == false);
- if (builder.isMatrix(left) || builder.isMatrix(right))
- return createBinaryMatrixOperation(binOp, decorations, typeId, left, right);
- // No matrix involved; make both operands be the same number of components, if needed
- if (needMatchingVectors)
- builder.promoteScalar(decorations.precision, left, right);
- spv::Id result = builder.createBinOp(binOp, typeId, left, right);
- builder.addDecoration(result, decorations.noContraction);
- builder.addDecoration(result, decorations.nonUniform);
- return builder.setPrecision(result, decorations.precision);
- }
- if (! comparison)
- return 0;
- // Handle comparison instructions
- if (reduceComparison && (op == glslang::EOpEqual || op == glslang::EOpNotEqual)
- && (builder.isVector(left) || builder.isMatrix(left) || builder.isAggregate(left))) {
- spv::Id result = builder.createCompositeCompare(decorations.precision, left, right, op == glslang::EOpEqual);
- builder.addDecoration(result, decorations.nonUniform);
- return result;
- }
- switch (op) {
- case glslang::EOpLessThan:
- if (isFloat)
- binOp = spv::OpFOrdLessThan;
- else if (isUnsigned)
- binOp = spv::OpULessThan;
- else
- binOp = spv::OpSLessThan;
- break;
- case glslang::EOpGreaterThan:
- if (isFloat)
- binOp = spv::OpFOrdGreaterThan;
- else if (isUnsigned)
- binOp = spv::OpUGreaterThan;
- else
- binOp = spv::OpSGreaterThan;
- break;
- case glslang::EOpLessThanEqual:
- if (isFloat)
- binOp = spv::OpFOrdLessThanEqual;
- else if (isUnsigned)
- binOp = spv::OpULessThanEqual;
- else
- binOp = spv::OpSLessThanEqual;
- break;
- case glslang::EOpGreaterThanEqual:
- if (isFloat)
- binOp = spv::OpFOrdGreaterThanEqual;
- else if (isUnsigned)
- binOp = spv::OpUGreaterThanEqual;
- else
- binOp = spv::OpSGreaterThanEqual;
- break;
- case glslang::EOpEqual:
- case glslang::EOpVectorEqual:
- if (isFloat)
- binOp = spv::OpFOrdEqual;
- else if (isBool)
- binOp = spv::OpLogicalEqual;
- else
- binOp = spv::OpIEqual;
- break;
- case glslang::EOpNotEqual:
- case glslang::EOpVectorNotEqual:
- if (isFloat)
- binOp = spv::OpFOrdNotEqual;
- else if (isBool)
- binOp = spv::OpLogicalNotEqual;
- else
- binOp = spv::OpINotEqual;
- break;
- default:
- break;
- }
- if (binOp != spv::OpNop) {
- spv::Id result = builder.createBinOp(binOp, typeId, left, right);
- builder.addDecoration(result, decorations.noContraction);
- builder.addDecoration(result, decorations.nonUniform);
- return builder.setPrecision(result, decorations.precision);
- }
- return 0;
- }
- //
- // Translate AST matrix operation to SPV operation, already having SPV-based operands/types.
- // These can be any of:
- //
- // matrix * scalar
- // scalar * matrix
- // matrix * matrix linear algebraic
- // matrix * vector
- // vector * matrix
- // matrix * matrix componentwise
- // matrix op matrix op in {+, -, /}
- // matrix op scalar op in {+, -, /}
- // scalar op matrix op in {+, -, /}
- //
- spv::Id TGlslangToSpvTraverser::createBinaryMatrixOperation(spv::Op op, OpDecorations& decorations, spv::Id typeId,
- spv::Id left, spv::Id right)
- {
- bool firstClass = true;
- // First, handle first-class matrix operations (* and matrix/scalar)
- switch (op) {
- case spv::OpFDiv:
- if (builder.isMatrix(left) && builder.isScalar(right)) {
- // turn matrix / scalar into a multiply...
- spv::Id resultType = builder.getTypeId(right);
- right = builder.createBinOp(spv::OpFDiv, resultType, builder.makeFpConstant(resultType, 1.0), right);
- op = spv::OpMatrixTimesScalar;
- } else
- firstClass = false;
- break;
- case spv::OpMatrixTimesScalar:
- if (builder.isMatrix(right))
- std::swap(left, right);
- assert(builder.isScalar(right));
- break;
- case spv::OpVectorTimesMatrix:
- assert(builder.isVector(left));
- assert(builder.isMatrix(right));
- break;
- case spv::OpMatrixTimesVector:
- assert(builder.isMatrix(left));
- assert(builder.isVector(right));
- break;
- case spv::OpMatrixTimesMatrix:
- assert(builder.isMatrix(left));
- assert(builder.isMatrix(right));
- break;
- default:
- firstClass = false;
- break;
- }
- if (firstClass) {
- spv::Id result = builder.createBinOp(op, typeId, left, right);
- builder.addDecoration(result, decorations.noContraction);
- builder.addDecoration(result, decorations.nonUniform);
- return builder.setPrecision(result, decorations.precision);
- }
- // Handle component-wise +, -, *, %, and / for all combinations of type.
- // The result type of all of them is the same type as the (a) matrix operand.
- // The algorithm is to:
- // - break the matrix(es) into vectors
- // - smear any scalar to a vector
- // - do vector operations
- // - make a matrix out the vector results
- switch (op) {
- case spv::OpFAdd:
- case spv::OpFSub:
- case spv::OpFDiv:
- case spv::OpFMod:
- case spv::OpFMul:
- {
- // one time set up...
- bool leftMat = builder.isMatrix(left);
- bool rightMat = builder.isMatrix(right);
- unsigned int numCols = leftMat ? builder.getNumColumns(left) : builder.getNumColumns(right);
- int numRows = leftMat ? builder.getNumRows(left) : builder.getNumRows(right);
- spv::Id scalarType = builder.getScalarTypeId(typeId);
- spv::Id vecType = builder.makeVectorType(scalarType, numRows);
- std::vector<spv::Id> results;
- spv::Id smearVec = spv::NoResult;
- if (builder.isScalar(left))
- smearVec = builder.smearScalar(decorations.precision, left, vecType);
- else if (builder.isScalar(right))
- smearVec = builder.smearScalar(decorations.precision, right, vecType);
- // do each vector op
- for (unsigned int c = 0; c < numCols; ++c) {
- std::vector<unsigned int> indexes;
- indexes.push_back(c);
- spv::Id leftVec = leftMat ? builder.createCompositeExtract( left, vecType, indexes) : smearVec;
- spv::Id rightVec = rightMat ? builder.createCompositeExtract(right, vecType, indexes) : smearVec;
- spv::Id result = builder.createBinOp(op, vecType, leftVec, rightVec);
- builder.addDecoration(result, decorations.noContraction);
- builder.addDecoration(result, decorations.nonUniform);
- results.push_back(builder.setPrecision(result, decorations.precision));
- }
- // put the pieces together
- spv::Id result = builder.setPrecision(builder.createCompositeConstruct(typeId, results), decorations.precision);
- builder.addDecoration(result, decorations.nonUniform);
- return result;
- }
- default:
- assert(0);
- return spv::NoResult;
- }
- }
- spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, OpDecorations& decorations, spv::Id typeId,
- spv::Id operand, glslang::TBasicType typeProxy)
- {
- spv::Op unaryOp = spv::OpNop;
- int extBuiltins = -1;
- int libCall = -1;
- bool isUnsigned = isTypeUnsignedInt(typeProxy);
- bool isFloat = isTypeFloat(typeProxy);
- switch (op) {
- case glslang::EOpNegative:
- if (isFloat) {
- unaryOp = spv::OpFNegate;
- if (builder.isMatrixType(typeId))
- return createUnaryMatrixOperation(unaryOp, decorations, typeId, operand, typeProxy);
- } else
- unaryOp = spv::OpSNegate;
- break;
- case glslang::EOpLogicalNot:
- case glslang::EOpVectorLogicalNot:
- unaryOp = spv::OpLogicalNot;
- break;
- case glslang::EOpBitwiseNot:
- unaryOp = spv::OpNot;
- break;
- case glslang::EOpDeterminant:
- libCall = spv::GLSLstd450Determinant;
- break;
- case glslang::EOpMatrixInverse:
- libCall = spv::GLSLstd450MatrixInverse;
- break;
- case glslang::EOpTranspose:
- unaryOp = spv::OpTranspose;
- break;
- case glslang::EOpRadians:
- libCall = spv::GLSLstd450Radians;
- break;
- case glslang::EOpDegrees:
- libCall = spv::GLSLstd450Degrees;
- break;
- case glslang::EOpSin:
- libCall = spv::GLSLstd450Sin;
- break;
- case glslang::EOpCos:
- libCall = spv::GLSLstd450Cos;
- break;
- case glslang::EOpTan:
- libCall = spv::GLSLstd450Tan;
- break;
- case glslang::EOpAcos:
- libCall = spv::GLSLstd450Acos;
- break;
- case glslang::EOpAsin:
- libCall = spv::GLSLstd450Asin;
- break;
- case glslang::EOpAtan:
- libCall = spv::GLSLstd450Atan;
- break;
- case glslang::EOpAcosh:
- libCall = spv::GLSLstd450Acosh;
- break;
- case glslang::EOpAsinh:
- libCall = spv::GLSLstd450Asinh;
- break;
- case glslang::EOpAtanh:
- libCall = spv::GLSLstd450Atanh;
- break;
- case glslang::EOpTanh:
- libCall = spv::GLSLstd450Tanh;
- break;
- case glslang::EOpCosh:
- libCall = spv::GLSLstd450Cosh;
- break;
- case glslang::EOpSinh:
- libCall = spv::GLSLstd450Sinh;
- break;
- case glslang::EOpLength:
- libCall = spv::GLSLstd450Length;
- break;
- case glslang::EOpNormalize:
- libCall = spv::GLSLstd450Normalize;
- break;
- case glslang::EOpExp:
- libCall = spv::GLSLstd450Exp;
- break;
- case glslang::EOpLog:
- libCall = spv::GLSLstd450Log;
- break;
- case glslang::EOpExp2:
- libCall = spv::GLSLstd450Exp2;
- break;
- case glslang::EOpLog2:
- libCall = spv::GLSLstd450Log2;
- break;
- case glslang::EOpSqrt:
- libCall = spv::GLSLstd450Sqrt;
- break;
- case glslang::EOpInverseSqrt:
- libCall = spv::GLSLstd450InverseSqrt;
- break;
- case glslang::EOpFloor:
- libCall = spv::GLSLstd450Floor;
- break;
- case glslang::EOpTrunc:
- libCall = spv::GLSLstd450Trunc;
- break;
- case glslang::EOpRound:
- libCall = spv::GLSLstd450Round;
- break;
- case glslang::EOpRoundEven:
- libCall = spv::GLSLstd450RoundEven;
- break;
- case glslang::EOpCeil:
- libCall = spv::GLSLstd450Ceil;
- break;
- case glslang::EOpFract:
- libCall = spv::GLSLstd450Fract;
- break;
- case glslang::EOpIsNan:
- unaryOp = spv::OpIsNan;
- break;
- case glslang::EOpIsInf:
- unaryOp = spv::OpIsInf;
- break;
- case glslang::EOpIsFinite:
- unaryOp = spv::OpIsFinite;
- break;
- case glslang::EOpFloatBitsToInt:
- case glslang::EOpFloatBitsToUint:
- case glslang::EOpIntBitsToFloat:
- case glslang::EOpUintBitsToFloat:
- case glslang::EOpDoubleBitsToInt64:
- case glslang::EOpDoubleBitsToUint64:
- case glslang::EOpInt64BitsToDouble:
- case glslang::EOpUint64BitsToDouble:
- case glslang::EOpFloat16BitsToInt16:
- case glslang::EOpFloat16BitsToUint16:
- case glslang::EOpInt16BitsToFloat16:
- case glslang::EOpUint16BitsToFloat16:
- unaryOp = spv::OpBitcast;
- break;
- case glslang::EOpPackSnorm2x16:
- libCall = spv::GLSLstd450PackSnorm2x16;
- break;
- case glslang::EOpUnpackSnorm2x16:
- libCall = spv::GLSLstd450UnpackSnorm2x16;
- break;
- case glslang::EOpPackUnorm2x16:
- libCall = spv::GLSLstd450PackUnorm2x16;
- break;
- case glslang::EOpUnpackUnorm2x16:
- libCall = spv::GLSLstd450UnpackUnorm2x16;
- break;
- case glslang::EOpPackHalf2x16:
- libCall = spv::GLSLstd450PackHalf2x16;
- break;
- case glslang::EOpUnpackHalf2x16:
- libCall = spv::GLSLstd450UnpackHalf2x16;
- break;
- case glslang::EOpPackSnorm4x8:
- libCall = spv::GLSLstd450PackSnorm4x8;
- break;
- case glslang::EOpUnpackSnorm4x8:
- libCall = spv::GLSLstd450UnpackSnorm4x8;
- break;
- case glslang::EOpPackUnorm4x8:
- libCall = spv::GLSLstd450PackUnorm4x8;
- break;
- case glslang::EOpUnpackUnorm4x8:
- libCall = spv::GLSLstd450UnpackUnorm4x8;
- break;
- case glslang::EOpPackDouble2x32:
- libCall = spv::GLSLstd450PackDouble2x32;
- break;
- case glslang::EOpUnpackDouble2x32:
- libCall = spv::GLSLstd450UnpackDouble2x32;
- break;
- case glslang::EOpPackInt2x32:
- case glslang::EOpUnpackInt2x32:
- case glslang::EOpPackUint2x32:
- case glslang::EOpUnpackUint2x32:
- case glslang::EOpPack16:
- case glslang::EOpPack32:
- case glslang::EOpPack64:
- case glslang::EOpUnpack32:
- case glslang::EOpUnpack16:
- case glslang::EOpUnpack8:
- case glslang::EOpPackInt2x16:
- case glslang::EOpUnpackInt2x16:
- case glslang::EOpPackUint2x16:
- case glslang::EOpUnpackUint2x16:
- case glslang::EOpPackInt4x16:
- case glslang::EOpUnpackInt4x16:
- case glslang::EOpPackUint4x16:
- case glslang::EOpUnpackUint4x16:
- case glslang::EOpPackFloat2x16:
- case glslang::EOpUnpackFloat2x16:
- unaryOp = spv::OpBitcast;
- break;
- case glslang::EOpDPdx:
- unaryOp = spv::OpDPdx;
- break;
- case glslang::EOpDPdy:
- unaryOp = spv::OpDPdy;
- break;
- case glslang::EOpFwidth:
- unaryOp = spv::OpFwidth;
- break;
- case glslang::EOpDPdxFine:
- unaryOp = spv::OpDPdxFine;
- break;
- case glslang::EOpDPdyFine:
- unaryOp = spv::OpDPdyFine;
- break;
- case glslang::EOpFwidthFine:
- unaryOp = spv::OpFwidthFine;
- break;
- case glslang::EOpDPdxCoarse:
- unaryOp = spv::OpDPdxCoarse;
- break;
- case glslang::EOpDPdyCoarse:
- unaryOp = spv::OpDPdyCoarse;
- break;
- case glslang::EOpFwidthCoarse:
- unaryOp = spv::OpFwidthCoarse;
- break;
- case glslang::EOpInterpolateAtCentroid:
- #ifdef AMD_EXTENSIONS
- if (typeProxy == glslang::EbtFloat16)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
- #endif
- libCall = spv::GLSLstd450InterpolateAtCentroid;
- break;
- case glslang::EOpAny:
- unaryOp = spv::OpAny;
- break;
- case glslang::EOpAll:
- unaryOp = spv::OpAll;
- break;
- case glslang::EOpAbs:
- if (isFloat)
- libCall = spv::GLSLstd450FAbs;
- else
- libCall = spv::GLSLstd450SAbs;
- break;
- case glslang::EOpSign:
- if (isFloat)
- libCall = spv::GLSLstd450FSign;
- else
- libCall = spv::GLSLstd450SSign;
- break;
- case glslang::EOpAtomicCounterIncrement:
- case glslang::EOpAtomicCounterDecrement:
- case glslang::EOpAtomicCounter:
- {
- // Handle all of the atomics in one place, in createAtomicOperation()
- std::vector<spv::Id> operands;
- operands.push_back(operand);
- return createAtomicOperation(op, decorations.precision, typeId, operands, typeProxy);
- }
- case glslang::EOpBitFieldReverse:
- unaryOp = spv::OpBitReverse;
- break;
- case glslang::EOpBitCount:
- unaryOp = spv::OpBitCount;
- break;
- case glslang::EOpFindLSB:
- libCall = spv::GLSLstd450FindILsb;
- break;
- case glslang::EOpFindMSB:
- if (isUnsigned)
- libCall = spv::GLSLstd450FindUMsb;
- else
- libCall = spv::GLSLstd450FindSMsb;
- break;
- case glslang::EOpBallot:
- case glslang::EOpReadFirstInvocation:
- case glslang::EOpAnyInvocation:
- case glslang::EOpAllInvocations:
- case glslang::EOpAllInvocationsEqual:
- #ifdef AMD_EXTENSIONS
- case glslang::EOpMinInvocations:
- case glslang::EOpMaxInvocations:
- case glslang::EOpAddInvocations:
- case glslang::EOpMinInvocationsNonUniform:
- case glslang::EOpMaxInvocationsNonUniform:
- case glslang::EOpAddInvocationsNonUniform:
- case glslang::EOpMinInvocationsInclusiveScan:
- case glslang::EOpMaxInvocationsInclusiveScan:
- case glslang::EOpAddInvocationsInclusiveScan:
- case glslang::EOpMinInvocationsInclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsInclusiveScanNonUniform:
- case glslang::EOpAddInvocationsInclusiveScanNonUniform:
- case glslang::EOpMinInvocationsExclusiveScan:
- case glslang::EOpMaxInvocationsExclusiveScan:
- case glslang::EOpAddInvocationsExclusiveScan:
- case glslang::EOpMinInvocationsExclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsExclusiveScanNonUniform:
- case glslang::EOpAddInvocationsExclusiveScanNonUniform:
- #endif
- {
- std::vector<spv::Id> operands;
- operands.push_back(operand);
- return createInvocationsOperation(op, typeId, operands, typeProxy);
- }
- case glslang::EOpSubgroupAll:
- case glslang::EOpSubgroupAny:
- case glslang::EOpSubgroupAllEqual:
- case glslang::EOpSubgroupBroadcastFirst:
- case glslang::EOpSubgroupBallot:
- case glslang::EOpSubgroupInverseBallot:
- case glslang::EOpSubgroupBallotBitCount:
- case glslang::EOpSubgroupBallotInclusiveBitCount:
- case glslang::EOpSubgroupBallotExclusiveBitCount:
- case glslang::EOpSubgroupBallotFindLSB:
- case glslang::EOpSubgroupBallotFindMSB:
- case glslang::EOpSubgroupAdd:
- case glslang::EOpSubgroupMul:
- case glslang::EOpSubgroupMin:
- case glslang::EOpSubgroupMax:
- case glslang::EOpSubgroupAnd:
- case glslang::EOpSubgroupOr:
- case glslang::EOpSubgroupXor:
- case glslang::EOpSubgroupInclusiveAdd:
- case glslang::EOpSubgroupInclusiveMul:
- case glslang::EOpSubgroupInclusiveMin:
- case glslang::EOpSubgroupInclusiveMax:
- case glslang::EOpSubgroupInclusiveAnd:
- case glslang::EOpSubgroupInclusiveOr:
- case glslang::EOpSubgroupInclusiveXor:
- case glslang::EOpSubgroupExclusiveAdd:
- case glslang::EOpSubgroupExclusiveMul:
- case glslang::EOpSubgroupExclusiveMin:
- case glslang::EOpSubgroupExclusiveMax:
- case glslang::EOpSubgroupExclusiveAnd:
- case glslang::EOpSubgroupExclusiveOr:
- case glslang::EOpSubgroupExclusiveXor:
- case glslang::EOpSubgroupQuadSwapHorizontal:
- case glslang::EOpSubgroupQuadSwapVertical:
- case glslang::EOpSubgroupQuadSwapDiagonal: {
- std::vector<spv::Id> operands;
- operands.push_back(operand);
- return createSubgroupOperation(op, typeId, operands, typeProxy);
- }
- #ifdef AMD_EXTENSIONS
- case glslang::EOpMbcnt:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_ballot);
- libCall = spv::MbcntAMD;
- break;
- case glslang::EOpCubeFaceIndex:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_gcn_shader);
- libCall = spv::CubeFaceIndexAMD;
- break;
- case glslang::EOpCubeFaceCoord:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_gcn_shader);
- libCall = spv::CubeFaceCoordAMD;
- break;
- #endif
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartition:
- unaryOp = spv::OpGroupNonUniformPartitionNV;
- break;
- #endif
- default:
- return 0;
- }
- spv::Id id;
- if (libCall >= 0) {
- std::vector<spv::Id> args;
- args.push_back(operand);
- id = builder.createBuiltinCall(typeId, extBuiltins >= 0 ? extBuiltins : stdBuiltins, libCall, args);
- } else {
- id = builder.createUnaryOp(unaryOp, typeId, operand);
- }
- builder.addDecoration(id, decorations.noContraction);
- builder.addDecoration(id, decorations.nonUniform);
- return builder.setPrecision(id, decorations.precision);
- }
- // Create a unary operation on a matrix
- spv::Id TGlslangToSpvTraverser::createUnaryMatrixOperation(spv::Op op, OpDecorations& decorations, spv::Id typeId,
- spv::Id operand, glslang::TBasicType /* typeProxy */)
- {
- // Handle unary operations vector by vector.
- // The result type is the same type as the original type.
- // The algorithm is to:
- // - break the matrix into vectors
- // - apply the operation to each vector
- // - make a matrix out the vector results
- // get the types sorted out
- int numCols = builder.getNumColumns(operand);
- int numRows = builder.getNumRows(operand);
- spv::Id srcVecType = builder.makeVectorType(builder.getScalarTypeId(builder.getTypeId(operand)), numRows);
- spv::Id destVecType = builder.makeVectorType(builder.getScalarTypeId(typeId), numRows);
- std::vector<spv::Id> results;
- // do each vector op
- for (int c = 0; c < numCols; ++c) {
- std::vector<unsigned int> indexes;
- indexes.push_back(c);
- spv::Id srcVec = builder.createCompositeExtract(operand, srcVecType, indexes);
- spv::Id destVec = builder.createUnaryOp(op, destVecType, srcVec);
- builder.addDecoration(destVec, decorations.noContraction);
- builder.addDecoration(destVec, decorations.nonUniform);
- results.push_back(builder.setPrecision(destVec, decorations.precision));
- }
- // put the pieces together
- spv::Id result = builder.setPrecision(builder.createCompositeConstruct(typeId, results), decorations.precision);
- builder.addDecoration(result, decorations.nonUniform);
- return result;
- }
- // For converting integers where both the bitwidth and the signedness could
- // change, but only do the width change here. The caller is still responsible
- // for the signedness conversion.
- spv::Id TGlslangToSpvTraverser::createIntWidthConversion(glslang::TOperator op, spv::Id operand, int vectorSize)
- {
- // Get the result type width, based on the type to convert to.
- int width = 32;
- switch(op) {
- case glslang::EOpConvInt16ToUint8:
- case glslang::EOpConvIntToUint8:
- case glslang::EOpConvInt64ToUint8:
- case glslang::EOpConvUint16ToInt8:
- case glslang::EOpConvUintToInt8:
- case glslang::EOpConvUint64ToInt8:
- width = 8;
- break;
- case glslang::EOpConvInt8ToUint16:
- case glslang::EOpConvIntToUint16:
- case glslang::EOpConvInt64ToUint16:
- case glslang::EOpConvUint8ToInt16:
- case glslang::EOpConvUintToInt16:
- case glslang::EOpConvUint64ToInt16:
- width = 16;
- break;
- case glslang::EOpConvInt8ToUint:
- case glslang::EOpConvInt16ToUint:
- case glslang::EOpConvInt64ToUint:
- case glslang::EOpConvUint8ToInt:
- case glslang::EOpConvUint16ToInt:
- case glslang::EOpConvUint64ToInt:
- width = 32;
- break;
- case glslang::EOpConvInt8ToUint64:
- case glslang::EOpConvInt16ToUint64:
- case glslang::EOpConvIntToUint64:
- case glslang::EOpConvUint8ToInt64:
- case glslang::EOpConvUint16ToInt64:
- case glslang::EOpConvUintToInt64:
- width = 64;
- break;
- default:
- assert(false && "Default missing");
- break;
- }
- // Get the conversion operation and result type,
- // based on the target width, but the source type.
- spv::Id type = spv::NoType;
- spv::Op convOp = spv::OpNop;
- switch(op) {
- case glslang::EOpConvInt8ToUint16:
- case glslang::EOpConvInt8ToUint:
- case glslang::EOpConvInt8ToUint64:
- case glslang::EOpConvInt16ToUint8:
- case glslang::EOpConvInt16ToUint:
- case glslang::EOpConvInt16ToUint64:
- case glslang::EOpConvIntToUint8:
- case glslang::EOpConvIntToUint16:
- case glslang::EOpConvIntToUint64:
- case glslang::EOpConvInt64ToUint8:
- case glslang::EOpConvInt64ToUint16:
- case glslang::EOpConvInt64ToUint:
- convOp = spv::OpSConvert;
- type = builder.makeIntType(width);
- break;
- default:
- convOp = spv::OpUConvert;
- type = builder.makeUintType(width);
- break;
- }
- if (vectorSize > 0)
- type = builder.makeVectorType(type, vectorSize);
- return builder.createUnaryOp(convOp, type, operand);
- }
- spv::Id TGlslangToSpvTraverser::createConversion(glslang::TOperator op, OpDecorations& decorations, spv::Id destType,
- spv::Id operand, glslang::TBasicType typeProxy)
- {
- spv::Op convOp = spv::OpNop;
- spv::Id zero = 0;
- spv::Id one = 0;
- int vectorSize = builder.isVectorType(destType) ? builder.getNumTypeComponents(destType) : 0;
- switch (op) {
- case glslang::EOpConvInt8ToBool:
- case glslang::EOpConvUint8ToBool:
- zero = builder.makeUint8Constant(0);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpINotEqual, destType, operand, zero);
- case glslang::EOpConvInt16ToBool:
- case glslang::EOpConvUint16ToBool:
- zero = builder.makeUint16Constant(0);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpINotEqual, destType, operand, zero);
- case glslang::EOpConvIntToBool:
- case glslang::EOpConvUintToBool:
- zero = builder.makeUintConstant(0);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpINotEqual, destType, operand, zero);
- case glslang::EOpConvInt64ToBool:
- case glslang::EOpConvUint64ToBool:
- zero = builder.makeUint64Constant(0);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpINotEqual, destType, operand, zero);
- case glslang::EOpConvFloatToBool:
- zero = builder.makeFloatConstant(0.0F);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpFOrdNotEqual, destType, operand, zero);
- case glslang::EOpConvDoubleToBool:
- zero = builder.makeDoubleConstant(0.0);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpFOrdNotEqual, destType, operand, zero);
- case glslang::EOpConvFloat16ToBool:
- zero = builder.makeFloat16Constant(0.0F);
- zero = makeSmearedConstant(zero, vectorSize);
- return builder.createBinOp(spv::OpFOrdNotEqual, destType, operand, zero);
- case glslang::EOpConvBoolToFloat:
- convOp = spv::OpSelect;
- zero = builder.makeFloatConstant(0.0F);
- one = builder.makeFloatConstant(1.0F);
- break;
- case glslang::EOpConvBoolToDouble:
- convOp = spv::OpSelect;
- zero = builder.makeDoubleConstant(0.0);
- one = builder.makeDoubleConstant(1.0);
- break;
- case glslang::EOpConvBoolToFloat16:
- convOp = spv::OpSelect;
- zero = builder.makeFloat16Constant(0.0F);
- one = builder.makeFloat16Constant(1.0F);
- break;
- case glslang::EOpConvBoolToInt8:
- zero = builder.makeInt8Constant(0);
- one = builder.makeInt8Constant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvBoolToUint8:
- zero = builder.makeUint8Constant(0);
- one = builder.makeUint8Constant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvBoolToInt16:
- zero = builder.makeInt16Constant(0);
- one = builder.makeInt16Constant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvBoolToUint16:
- zero = builder.makeUint16Constant(0);
- one = builder.makeUint16Constant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvBoolToInt:
- case glslang::EOpConvBoolToInt64:
- if (op == glslang::EOpConvBoolToInt64)
- zero = builder.makeInt64Constant(0);
- else
- zero = builder.makeIntConstant(0);
- if (op == glslang::EOpConvBoolToInt64)
- one = builder.makeInt64Constant(1);
- else
- one = builder.makeIntConstant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvBoolToUint:
- case glslang::EOpConvBoolToUint64:
- if (op == glslang::EOpConvBoolToUint64)
- zero = builder.makeUint64Constant(0);
- else
- zero = builder.makeUintConstant(0);
- if (op == glslang::EOpConvBoolToUint64)
- one = builder.makeUint64Constant(1);
- else
- one = builder.makeUintConstant(1);
- convOp = spv::OpSelect;
- break;
- case glslang::EOpConvInt8ToFloat16:
- case glslang::EOpConvInt8ToFloat:
- case glslang::EOpConvInt8ToDouble:
- case glslang::EOpConvInt16ToFloat16:
- case glslang::EOpConvInt16ToFloat:
- case glslang::EOpConvInt16ToDouble:
- case glslang::EOpConvIntToFloat16:
- case glslang::EOpConvIntToFloat:
- case glslang::EOpConvIntToDouble:
- case glslang::EOpConvInt64ToFloat:
- case glslang::EOpConvInt64ToDouble:
- case glslang::EOpConvInt64ToFloat16:
- convOp = spv::OpConvertSToF;
- break;
- case glslang::EOpConvUint8ToFloat16:
- case glslang::EOpConvUint8ToFloat:
- case glslang::EOpConvUint8ToDouble:
- case glslang::EOpConvUint16ToFloat16:
- case glslang::EOpConvUint16ToFloat:
- case glslang::EOpConvUint16ToDouble:
- case glslang::EOpConvUintToFloat16:
- case glslang::EOpConvUintToFloat:
- case glslang::EOpConvUintToDouble:
- case glslang::EOpConvUint64ToFloat:
- case glslang::EOpConvUint64ToDouble:
- case glslang::EOpConvUint64ToFloat16:
- convOp = spv::OpConvertUToF;
- break;
- case glslang::EOpConvDoubleToFloat:
- case glslang::EOpConvFloatToDouble:
- case glslang::EOpConvDoubleToFloat16:
- case glslang::EOpConvFloat16ToDouble:
- case glslang::EOpConvFloatToFloat16:
- case glslang::EOpConvFloat16ToFloat:
- convOp = spv::OpFConvert;
- if (builder.isMatrixType(destType))
- return createUnaryMatrixOperation(convOp, decorations, destType, operand, typeProxy);
- break;
- case glslang::EOpConvFloat16ToInt8:
- case glslang::EOpConvFloatToInt8:
- case glslang::EOpConvDoubleToInt8:
- case glslang::EOpConvFloat16ToInt16:
- case glslang::EOpConvFloatToInt16:
- case glslang::EOpConvDoubleToInt16:
- case glslang::EOpConvFloat16ToInt:
- case glslang::EOpConvFloatToInt:
- case glslang::EOpConvDoubleToInt:
- case glslang::EOpConvFloat16ToInt64:
- case glslang::EOpConvFloatToInt64:
- case glslang::EOpConvDoubleToInt64:
- convOp = spv::OpConvertFToS;
- break;
- case glslang::EOpConvUint8ToInt8:
- case glslang::EOpConvInt8ToUint8:
- case glslang::EOpConvUint16ToInt16:
- case glslang::EOpConvInt16ToUint16:
- case glslang::EOpConvUintToInt:
- case glslang::EOpConvIntToUint:
- case glslang::EOpConvUint64ToInt64:
- case glslang::EOpConvInt64ToUint64:
- if (builder.isInSpecConstCodeGenMode()) {
- // Build zero scalar or vector for OpIAdd.
- if(op == glslang::EOpConvUint8ToInt8 || op == glslang::EOpConvInt8ToUint8) {
- zero = builder.makeUint8Constant(0);
- } else if (op == glslang::EOpConvUint16ToInt16 || op == glslang::EOpConvInt16ToUint16) {
- zero = builder.makeUint16Constant(0);
- } else if (op == glslang::EOpConvUint64ToInt64 || op == glslang::EOpConvInt64ToUint64) {
- zero = builder.makeUint64Constant(0);
- } else {
- zero = builder.makeUintConstant(0);
- }
- zero = makeSmearedConstant(zero, vectorSize);
- // Use OpIAdd, instead of OpBitcast to do the conversion when
- // generating for OpSpecConstantOp instruction.
- return builder.createBinOp(spv::OpIAdd, destType, operand, zero);
- }
- // For normal run-time conversion instruction, use OpBitcast.
- convOp = spv::OpBitcast;
- break;
- case glslang::EOpConvFloat16ToUint8:
- case glslang::EOpConvFloatToUint8:
- case glslang::EOpConvDoubleToUint8:
- case glslang::EOpConvFloat16ToUint16:
- case glslang::EOpConvFloatToUint16:
- case glslang::EOpConvDoubleToUint16:
- case glslang::EOpConvFloat16ToUint:
- case glslang::EOpConvFloatToUint:
- case glslang::EOpConvDoubleToUint:
- case glslang::EOpConvFloatToUint64:
- case glslang::EOpConvDoubleToUint64:
- case glslang::EOpConvFloat16ToUint64:
- convOp = spv::OpConvertFToU;
- break;
- case glslang::EOpConvInt8ToInt16:
- case glslang::EOpConvInt8ToInt:
- case glslang::EOpConvInt8ToInt64:
- case glslang::EOpConvInt16ToInt8:
- case glslang::EOpConvInt16ToInt:
- case glslang::EOpConvInt16ToInt64:
- case glslang::EOpConvIntToInt8:
- case glslang::EOpConvIntToInt16:
- case glslang::EOpConvIntToInt64:
- case glslang::EOpConvInt64ToInt8:
- case glslang::EOpConvInt64ToInt16:
- case glslang::EOpConvInt64ToInt:
- convOp = spv::OpSConvert;
- break;
- case glslang::EOpConvUint8ToUint16:
- case glslang::EOpConvUint8ToUint:
- case glslang::EOpConvUint8ToUint64:
- case glslang::EOpConvUint16ToUint8:
- case glslang::EOpConvUint16ToUint:
- case glslang::EOpConvUint16ToUint64:
- case glslang::EOpConvUintToUint8:
- case glslang::EOpConvUintToUint16:
- case glslang::EOpConvUintToUint64:
- case glslang::EOpConvUint64ToUint8:
- case glslang::EOpConvUint64ToUint16:
- case glslang::EOpConvUint64ToUint:
- convOp = spv::OpUConvert;
- break;
- case glslang::EOpConvInt8ToUint16:
- case glslang::EOpConvInt8ToUint:
- case glslang::EOpConvInt8ToUint64:
- case glslang::EOpConvInt16ToUint8:
- case glslang::EOpConvInt16ToUint:
- case glslang::EOpConvInt16ToUint64:
- case glslang::EOpConvIntToUint8:
- case glslang::EOpConvIntToUint16:
- case glslang::EOpConvIntToUint64:
- case glslang::EOpConvInt64ToUint8:
- case glslang::EOpConvInt64ToUint16:
- case glslang::EOpConvInt64ToUint:
- case glslang::EOpConvUint8ToInt16:
- case glslang::EOpConvUint8ToInt:
- case glslang::EOpConvUint8ToInt64:
- case glslang::EOpConvUint16ToInt8:
- case glslang::EOpConvUint16ToInt:
- case glslang::EOpConvUint16ToInt64:
- case glslang::EOpConvUintToInt8:
- case glslang::EOpConvUintToInt16:
- case glslang::EOpConvUintToInt64:
- case glslang::EOpConvUint64ToInt8:
- case glslang::EOpConvUint64ToInt16:
- case glslang::EOpConvUint64ToInt:
- // OpSConvert/OpUConvert + OpBitCast
- operand = createIntWidthConversion(op, operand, vectorSize);
- if (builder.isInSpecConstCodeGenMode()) {
- // Build zero scalar or vector for OpIAdd.
- switch(op) {
- case glslang::EOpConvInt16ToUint8:
- case glslang::EOpConvIntToUint8:
- case glslang::EOpConvInt64ToUint8:
- case glslang::EOpConvUint16ToInt8:
- case glslang::EOpConvUintToInt8:
- case glslang::EOpConvUint64ToInt8:
- zero = builder.makeUint8Constant(0);
- break;
- case glslang::EOpConvInt8ToUint16:
- case glslang::EOpConvIntToUint16:
- case glslang::EOpConvInt64ToUint16:
- case glslang::EOpConvUint8ToInt16:
- case glslang::EOpConvUintToInt16:
- case glslang::EOpConvUint64ToInt16:
- zero = builder.makeUint16Constant(0);
- break;
- case glslang::EOpConvInt8ToUint:
- case glslang::EOpConvInt16ToUint:
- case glslang::EOpConvInt64ToUint:
- case glslang::EOpConvUint8ToInt:
- case glslang::EOpConvUint16ToInt:
- case glslang::EOpConvUint64ToInt:
- zero = builder.makeUintConstant(0);
- break;
- case glslang::EOpConvInt8ToUint64:
- case glslang::EOpConvInt16ToUint64:
- case glslang::EOpConvIntToUint64:
- case glslang::EOpConvUint8ToInt64:
- case glslang::EOpConvUint16ToInt64:
- case glslang::EOpConvUintToInt64:
- zero = builder.makeUint64Constant(0);
- break;
- default:
- assert(false && "Default missing");
- break;
- }
- zero = makeSmearedConstant(zero, vectorSize);
- // Use OpIAdd, instead of OpBitcast to do the conversion when
- // generating for OpSpecConstantOp instruction.
- return builder.createBinOp(spv::OpIAdd, destType, operand, zero);
- }
- // For normal run-time conversion instruction, use OpBitcast.
- convOp = spv::OpBitcast;
- break;
- default:
- break;
- }
- spv::Id result = 0;
- if (convOp == spv::OpNop)
- return result;
- if (convOp == spv::OpSelect) {
- zero = makeSmearedConstant(zero, vectorSize);
- one = makeSmearedConstant(one, vectorSize);
- result = builder.createTriOp(convOp, destType, operand, one, zero);
- } else
- result = builder.createUnaryOp(convOp, destType, operand);
- result = builder.setPrecision(result, decorations.precision);
- builder.addDecoration(result, decorations.nonUniform);
- return result;
- }
- spv::Id TGlslangToSpvTraverser::makeSmearedConstant(spv::Id constant, int vectorSize)
- {
- if (vectorSize == 0)
- return constant;
- spv::Id vectorTypeId = builder.makeVectorType(builder.getTypeId(constant), vectorSize);
- std::vector<spv::Id> components;
- for (int c = 0; c < vectorSize; ++c)
- components.push_back(constant);
- return builder.makeCompositeConstant(vectorTypeId, components);
- }
- // For glslang ops that map to SPV atomic opCodes
- spv::Id TGlslangToSpvTraverser::createAtomicOperation(glslang::TOperator op, spv::Decoration /*precision*/, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy)
- {
- spv::Op opCode = spv::OpNop;
- switch (op) {
- case glslang::EOpAtomicAdd:
- case glslang::EOpImageAtomicAdd:
- case glslang::EOpAtomicCounterAdd:
- opCode = spv::OpAtomicIAdd;
- break;
- case glslang::EOpAtomicCounterSubtract:
- opCode = spv::OpAtomicISub;
- break;
- case glslang::EOpAtomicMin:
- case glslang::EOpImageAtomicMin:
- case glslang::EOpAtomicCounterMin:
- opCode = (typeProxy == glslang::EbtUint || typeProxy == glslang::EbtUint64) ? spv::OpAtomicUMin : spv::OpAtomicSMin;
- break;
- case glslang::EOpAtomicMax:
- case glslang::EOpImageAtomicMax:
- case glslang::EOpAtomicCounterMax:
- opCode = (typeProxy == glslang::EbtUint || typeProxy == glslang::EbtUint64) ? spv::OpAtomicUMax : spv::OpAtomicSMax;
- break;
- case glslang::EOpAtomicAnd:
- case glslang::EOpImageAtomicAnd:
- case glslang::EOpAtomicCounterAnd:
- opCode = spv::OpAtomicAnd;
- break;
- case glslang::EOpAtomicOr:
- case glslang::EOpImageAtomicOr:
- case glslang::EOpAtomicCounterOr:
- opCode = spv::OpAtomicOr;
- break;
- case glslang::EOpAtomicXor:
- case glslang::EOpImageAtomicXor:
- case glslang::EOpAtomicCounterXor:
- opCode = spv::OpAtomicXor;
- break;
- case glslang::EOpAtomicExchange:
- case glslang::EOpImageAtomicExchange:
- case glslang::EOpAtomicCounterExchange:
- opCode = spv::OpAtomicExchange;
- break;
- case glslang::EOpAtomicCompSwap:
- case glslang::EOpImageAtomicCompSwap:
- case glslang::EOpAtomicCounterCompSwap:
- opCode = spv::OpAtomicCompareExchange;
- break;
- case glslang::EOpAtomicCounterIncrement:
- opCode = spv::OpAtomicIIncrement;
- break;
- case glslang::EOpAtomicCounterDecrement:
- opCode = spv::OpAtomicIDecrement;
- break;
- case glslang::EOpAtomicCounter:
- opCode = spv::OpAtomicLoad;
- break;
- default:
- assert(0);
- break;
- }
- if (typeProxy == glslang::EbtInt64 || typeProxy == glslang::EbtUint64)
- builder.addCapability(spv::CapabilityInt64Atomics);
- // Sort out the operands
- // - mapping from glslang -> SPV
- // - there are extra SPV operands with no glslang source
- // - compare-exchange swaps the value and comparator
- // - compare-exchange has an extra memory semantics
- // - EOpAtomicCounterDecrement needs a post decrement
- std::vector<spv::Id> spvAtomicOperands; // hold the spv operands
- auto opIt = operands.begin(); // walk the glslang operands
- spvAtomicOperands.push_back(*(opIt++));
- spvAtomicOperands.push_back(builder.makeUintConstant(spv::ScopeDevice)); // TBD: what is the correct scope?
- spvAtomicOperands.push_back(builder.makeUintConstant(spv::MemorySemanticsMaskNone)); // TBD: what are the correct memory semantics?
- if (opCode == spv::OpAtomicCompareExchange) {
- // There are 2 memory semantics for compare-exchange. And the operand order of "comparator" and "new value" in GLSL
- // differs from that in SPIR-V. Hence, special processing is required.
- spvAtomicOperands.push_back(builder.makeUintConstant(spv::MemorySemanticsMaskNone));
- spvAtomicOperands.push_back(*(opIt + 1));
- spvAtomicOperands.push_back(*opIt);
- opIt += 2;
- }
- // Add the rest of the operands, skipping any that were dealt with above.
- for (; opIt != operands.end(); ++opIt)
- spvAtomicOperands.push_back(*opIt);
- spv::Id resultId = builder.createOp(opCode, typeId, spvAtomicOperands);
- // GLSL and HLSL atomic-counter decrement return post-decrement value,
- // while SPIR-V returns pre-decrement value. Translate between these semantics.
- if (op == glslang::EOpAtomicCounterDecrement)
- resultId = builder.createBinOp(spv::OpISub, typeId, resultId, builder.makeIntConstant(1));
- return resultId;
- }
- // Create group invocation operations.
- spv::Id TGlslangToSpvTraverser::createInvocationsOperation(glslang::TOperator op, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy)
- {
- #ifdef AMD_EXTENSIONS
- bool isUnsigned = isTypeUnsignedInt(typeProxy);
- bool isFloat = isTypeFloat(typeProxy);
- #endif
- spv::Op opCode = spv::OpNop;
- std::vector<spv::IdImmediate> spvGroupOperands;
- spv::GroupOperation groupOperation = spv::GroupOperationMax;
- if (op == glslang::EOpBallot || op == glslang::EOpReadFirstInvocation ||
- op == glslang::EOpReadInvocation) {
- builder.addExtension(spv::E_SPV_KHR_shader_ballot);
- builder.addCapability(spv::CapabilitySubgroupBallotKHR);
- } else if (op == glslang::EOpAnyInvocation ||
- op == glslang::EOpAllInvocations ||
- op == glslang::EOpAllInvocationsEqual) {
- builder.addExtension(spv::E_SPV_KHR_subgroup_vote);
- builder.addCapability(spv::CapabilitySubgroupVoteKHR);
- } else {
- builder.addCapability(spv::CapabilityGroups);
- #ifdef AMD_EXTENSIONS
- if (op == glslang::EOpMinInvocationsNonUniform ||
- op == glslang::EOpMaxInvocationsNonUniform ||
- op == glslang::EOpAddInvocationsNonUniform ||
- op == glslang::EOpMinInvocationsInclusiveScanNonUniform ||
- op == glslang::EOpMaxInvocationsInclusiveScanNonUniform ||
- op == glslang::EOpAddInvocationsInclusiveScanNonUniform ||
- op == glslang::EOpMinInvocationsExclusiveScanNonUniform ||
- op == glslang::EOpMaxInvocationsExclusiveScanNonUniform ||
- op == glslang::EOpAddInvocationsExclusiveScanNonUniform)
- builder.addExtension(spv::E_SPV_AMD_shader_ballot);
- #endif
- #ifdef AMD_EXTENSIONS
- switch (op) {
- case glslang::EOpMinInvocations:
- case glslang::EOpMaxInvocations:
- case glslang::EOpAddInvocations:
- case glslang::EOpMinInvocationsNonUniform:
- case glslang::EOpMaxInvocationsNonUniform:
- case glslang::EOpAddInvocationsNonUniform:
- groupOperation = spv::GroupOperationReduce;
- break;
- case glslang::EOpMinInvocationsInclusiveScan:
- case glslang::EOpMaxInvocationsInclusiveScan:
- case glslang::EOpAddInvocationsInclusiveScan:
- case glslang::EOpMinInvocationsInclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsInclusiveScanNonUniform:
- case glslang::EOpAddInvocationsInclusiveScanNonUniform:
- groupOperation = spv::GroupOperationInclusiveScan;
- break;
- case glslang::EOpMinInvocationsExclusiveScan:
- case glslang::EOpMaxInvocationsExclusiveScan:
- case glslang::EOpAddInvocationsExclusiveScan:
- case glslang::EOpMinInvocationsExclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsExclusiveScanNonUniform:
- case glslang::EOpAddInvocationsExclusiveScanNonUniform:
- groupOperation = spv::GroupOperationExclusiveScan;
- break;
- default:
- break;
- }
- spv::IdImmediate scope = { true, builder.makeUintConstant(spv::ScopeSubgroup) };
- spvGroupOperands.push_back(scope);
- if (groupOperation != spv::GroupOperationMax) {
- spv::IdImmediate groupOp = { false, groupOperation };
- spvGroupOperands.push_back(groupOp);
- }
- #endif
- }
- for (auto opIt = operands.begin(); opIt != operands.end(); ++opIt) {
- spv::IdImmediate op = { true, *opIt };
- spvGroupOperands.push_back(op);
- }
- switch (op) {
- case glslang::EOpAnyInvocation:
- opCode = spv::OpSubgroupAnyKHR;
- break;
- case glslang::EOpAllInvocations:
- opCode = spv::OpSubgroupAllKHR;
- break;
- case glslang::EOpAllInvocationsEqual:
- opCode = spv::OpSubgroupAllEqualKHR;
- break;
- case glslang::EOpReadInvocation:
- opCode = spv::OpSubgroupReadInvocationKHR;
- if (builder.isVectorType(typeId))
- return CreateInvocationsVectorOperation(opCode, groupOperation, typeId, operands);
- break;
- case glslang::EOpReadFirstInvocation:
- opCode = spv::OpSubgroupFirstInvocationKHR;
- break;
- case glslang::EOpBallot:
- {
- // NOTE: According to the spec, the result type of "OpSubgroupBallotKHR" must be a 4 component vector of 32
- // bit integer types. The GLSL built-in function "ballotARB()" assumes the maximum number of invocations in
- // a subgroup is 64. Thus, we have to convert uvec4.xy to uint64_t as follow:
- //
- // result = Bitcast(SubgroupBallotKHR(Predicate).xy)
- //
- spv::Id uintType = builder.makeUintType(32);
- spv::Id uvec4Type = builder.makeVectorType(uintType, 4);
- spv::Id result = builder.createOp(spv::OpSubgroupBallotKHR, uvec4Type, spvGroupOperands);
- std::vector<spv::Id> components;
- components.push_back(builder.createCompositeExtract(result, uintType, 0));
- components.push_back(builder.createCompositeExtract(result, uintType, 1));
- spv::Id uvec2Type = builder.makeVectorType(uintType, 2);
- return builder.createUnaryOp(spv::OpBitcast, typeId,
- builder.createCompositeConstruct(uvec2Type, components));
- }
- #ifdef AMD_EXTENSIONS
- case glslang::EOpMinInvocations:
- case glslang::EOpMaxInvocations:
- case glslang::EOpAddInvocations:
- case glslang::EOpMinInvocationsInclusiveScan:
- case glslang::EOpMaxInvocationsInclusiveScan:
- case glslang::EOpAddInvocationsInclusiveScan:
- case glslang::EOpMinInvocationsExclusiveScan:
- case glslang::EOpMaxInvocationsExclusiveScan:
- case glslang::EOpAddInvocationsExclusiveScan:
- if (op == glslang::EOpMinInvocations ||
- op == glslang::EOpMinInvocationsInclusiveScan ||
- op == glslang::EOpMinInvocationsExclusiveScan) {
- if (isFloat)
- opCode = spv::OpGroupFMin;
- else {
- if (isUnsigned)
- opCode = spv::OpGroupUMin;
- else
- opCode = spv::OpGroupSMin;
- }
- } else if (op == glslang::EOpMaxInvocations ||
- op == glslang::EOpMaxInvocationsInclusiveScan ||
- op == glslang::EOpMaxInvocationsExclusiveScan) {
- if (isFloat)
- opCode = spv::OpGroupFMax;
- else {
- if (isUnsigned)
- opCode = spv::OpGroupUMax;
- else
- opCode = spv::OpGroupSMax;
- }
- } else {
- if (isFloat)
- opCode = spv::OpGroupFAdd;
- else
- opCode = spv::OpGroupIAdd;
- }
- if (builder.isVectorType(typeId))
- return CreateInvocationsVectorOperation(opCode, groupOperation, typeId, operands);
- break;
- case glslang::EOpMinInvocationsNonUniform:
- case glslang::EOpMaxInvocationsNonUniform:
- case glslang::EOpAddInvocationsNonUniform:
- case glslang::EOpMinInvocationsInclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsInclusiveScanNonUniform:
- case glslang::EOpAddInvocationsInclusiveScanNonUniform:
- case glslang::EOpMinInvocationsExclusiveScanNonUniform:
- case glslang::EOpMaxInvocationsExclusiveScanNonUniform:
- case glslang::EOpAddInvocationsExclusiveScanNonUniform:
- if (op == glslang::EOpMinInvocationsNonUniform ||
- op == glslang::EOpMinInvocationsInclusiveScanNonUniform ||
- op == glslang::EOpMinInvocationsExclusiveScanNonUniform) {
- if (isFloat)
- opCode = spv::OpGroupFMinNonUniformAMD;
- else {
- if (isUnsigned)
- opCode = spv::OpGroupUMinNonUniformAMD;
- else
- opCode = spv::OpGroupSMinNonUniformAMD;
- }
- }
- else if (op == glslang::EOpMaxInvocationsNonUniform ||
- op == glslang::EOpMaxInvocationsInclusiveScanNonUniform ||
- op == glslang::EOpMaxInvocationsExclusiveScanNonUniform) {
- if (isFloat)
- opCode = spv::OpGroupFMaxNonUniformAMD;
- else {
- if (isUnsigned)
- opCode = spv::OpGroupUMaxNonUniformAMD;
- else
- opCode = spv::OpGroupSMaxNonUniformAMD;
- }
- }
- else {
- if (isFloat)
- opCode = spv::OpGroupFAddNonUniformAMD;
- else
- opCode = spv::OpGroupIAddNonUniformAMD;
- }
- if (builder.isVectorType(typeId))
- return CreateInvocationsVectorOperation(opCode, groupOperation, typeId, operands);
- break;
- #endif
- default:
- logger->missingFunctionality("invocation operation");
- return spv::NoResult;
- }
- assert(opCode != spv::OpNop);
- return builder.createOp(opCode, typeId, spvGroupOperands);
- }
- // Create group invocation operations on a vector
- spv::Id TGlslangToSpvTraverser::CreateInvocationsVectorOperation(spv::Op op, spv::GroupOperation groupOperation,
- spv::Id typeId, std::vector<spv::Id>& operands)
- {
- #ifdef AMD_EXTENSIONS
- assert(op == spv::OpGroupFMin || op == spv::OpGroupUMin || op == spv::OpGroupSMin ||
- op == spv::OpGroupFMax || op == spv::OpGroupUMax || op == spv::OpGroupSMax ||
- op == spv::OpGroupFAdd || op == spv::OpGroupIAdd || op == spv::OpGroupBroadcast ||
- op == spv::OpSubgroupReadInvocationKHR ||
- op == spv::OpGroupFMinNonUniformAMD || op == spv::OpGroupUMinNonUniformAMD || op == spv::OpGroupSMinNonUniformAMD ||
- op == spv::OpGroupFMaxNonUniformAMD || op == spv::OpGroupUMaxNonUniformAMD || op == spv::OpGroupSMaxNonUniformAMD ||
- op == spv::OpGroupFAddNonUniformAMD || op == spv::OpGroupIAddNonUniformAMD);
- #else
- assert(op == spv::OpGroupFMin || op == spv::OpGroupUMin || op == spv::OpGroupSMin ||
- op == spv::OpGroupFMax || op == spv::OpGroupUMax || op == spv::OpGroupSMax ||
- op == spv::OpGroupFAdd || op == spv::OpGroupIAdd || op == spv::OpGroupBroadcast ||
- op == spv::OpSubgroupReadInvocationKHR);
- #endif
- // Handle group invocation operations scalar by scalar.
- // The result type is the same type as the original type.
- // The algorithm is to:
- // - break the vector into scalars
- // - apply the operation to each scalar
- // - make a vector out the scalar results
- // get the types sorted out
- int numComponents = builder.getNumComponents(operands[0]);
- spv::Id scalarType = builder.getScalarTypeId(builder.getTypeId(operands[0]));
- std::vector<spv::Id> results;
- // do each scalar op
- for (int comp = 0; comp < numComponents; ++comp) {
- std::vector<unsigned int> indexes;
- indexes.push_back(comp);
- spv::IdImmediate scalar = { true, builder.createCompositeExtract(operands[0], scalarType, indexes) };
- std::vector<spv::IdImmediate> spvGroupOperands;
- if (op == spv::OpSubgroupReadInvocationKHR) {
- spvGroupOperands.push_back(scalar);
- spv::IdImmediate operand = { true, operands[1] };
- spvGroupOperands.push_back(operand);
- } else if (op == spv::OpGroupBroadcast) {
- spv::IdImmediate scope = { true, builder.makeUintConstant(spv::ScopeSubgroup) };
- spvGroupOperands.push_back(scope);
- spvGroupOperands.push_back(scalar);
- spv::IdImmediate operand = { true, operands[1] };
- spvGroupOperands.push_back(operand);
- } else {
- spv::IdImmediate scope = { true, builder.makeUintConstant(spv::ScopeSubgroup) };
- spvGroupOperands.push_back(scope);
- spv::IdImmediate groupOp = { false, groupOperation };
- spvGroupOperands.push_back(groupOp);
- spvGroupOperands.push_back(scalar);
- }
- results.push_back(builder.createOp(op, scalarType, spvGroupOperands));
- }
- // put the pieces together
- return builder.createCompositeConstruct(typeId, results);
- }
- // Create subgroup invocation operations.
- spv::Id TGlslangToSpvTraverser::createSubgroupOperation(glslang::TOperator op, spv::Id typeId,
- std::vector<spv::Id>& operands, glslang::TBasicType typeProxy)
- {
- // Add the required capabilities.
- switch (op) {
- case glslang::EOpSubgroupElect:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- break;
- case glslang::EOpSubgroupAll:
- case glslang::EOpSubgroupAny:
- case glslang::EOpSubgroupAllEqual:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformVote);
- break;
- case glslang::EOpSubgroupBroadcast:
- case glslang::EOpSubgroupBroadcastFirst:
- case glslang::EOpSubgroupBallot:
- case glslang::EOpSubgroupInverseBallot:
- case glslang::EOpSubgroupBallotBitExtract:
- case glslang::EOpSubgroupBallotBitCount:
- case glslang::EOpSubgroupBallotInclusiveBitCount:
- case glslang::EOpSubgroupBallotExclusiveBitCount:
- case glslang::EOpSubgroupBallotFindLSB:
- case glslang::EOpSubgroupBallotFindMSB:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformBallot);
- break;
- case glslang::EOpSubgroupShuffle:
- case glslang::EOpSubgroupShuffleXor:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformShuffle);
- break;
- case glslang::EOpSubgroupShuffleUp:
- case glslang::EOpSubgroupShuffleDown:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformShuffleRelative);
- break;
- case glslang::EOpSubgroupAdd:
- case glslang::EOpSubgroupMul:
- case glslang::EOpSubgroupMin:
- case glslang::EOpSubgroupMax:
- case glslang::EOpSubgroupAnd:
- case glslang::EOpSubgroupOr:
- case glslang::EOpSubgroupXor:
- case glslang::EOpSubgroupInclusiveAdd:
- case glslang::EOpSubgroupInclusiveMul:
- case glslang::EOpSubgroupInclusiveMin:
- case glslang::EOpSubgroupInclusiveMax:
- case glslang::EOpSubgroupInclusiveAnd:
- case glslang::EOpSubgroupInclusiveOr:
- case glslang::EOpSubgroupInclusiveXor:
- case glslang::EOpSubgroupExclusiveAdd:
- case glslang::EOpSubgroupExclusiveMul:
- case glslang::EOpSubgroupExclusiveMin:
- case glslang::EOpSubgroupExclusiveMax:
- case glslang::EOpSubgroupExclusiveAnd:
- case glslang::EOpSubgroupExclusiveOr:
- case glslang::EOpSubgroupExclusiveXor:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformArithmetic);
- break;
- case glslang::EOpSubgroupClusteredAdd:
- case glslang::EOpSubgroupClusteredMul:
- case glslang::EOpSubgroupClusteredMin:
- case glslang::EOpSubgroupClusteredMax:
- case glslang::EOpSubgroupClusteredAnd:
- case glslang::EOpSubgroupClusteredOr:
- case glslang::EOpSubgroupClusteredXor:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformClustered);
- break;
- case glslang::EOpSubgroupQuadBroadcast:
- case glslang::EOpSubgroupQuadSwapHorizontal:
- case glslang::EOpSubgroupQuadSwapVertical:
- case glslang::EOpSubgroupQuadSwapDiagonal:
- builder.addCapability(spv::CapabilityGroupNonUniform);
- builder.addCapability(spv::CapabilityGroupNonUniformQuad);
- break;
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedAdd:
- case glslang::EOpSubgroupPartitionedMul:
- case glslang::EOpSubgroupPartitionedMin:
- case glslang::EOpSubgroupPartitionedMax:
- case glslang::EOpSubgroupPartitionedAnd:
- case glslang::EOpSubgroupPartitionedOr:
- case glslang::EOpSubgroupPartitionedXor:
- case glslang::EOpSubgroupPartitionedInclusiveAdd:
- case glslang::EOpSubgroupPartitionedInclusiveMul:
- case glslang::EOpSubgroupPartitionedInclusiveMin:
- case glslang::EOpSubgroupPartitionedInclusiveMax:
- case glslang::EOpSubgroupPartitionedInclusiveAnd:
- case glslang::EOpSubgroupPartitionedInclusiveOr:
- case glslang::EOpSubgroupPartitionedInclusiveXor:
- case glslang::EOpSubgroupPartitionedExclusiveAdd:
- case glslang::EOpSubgroupPartitionedExclusiveMul:
- case glslang::EOpSubgroupPartitionedExclusiveMin:
- case glslang::EOpSubgroupPartitionedExclusiveMax:
- case glslang::EOpSubgroupPartitionedExclusiveAnd:
- case glslang::EOpSubgroupPartitionedExclusiveOr:
- case glslang::EOpSubgroupPartitionedExclusiveXor:
- builder.addExtension(spv::E_SPV_NV_shader_subgroup_partitioned);
- builder.addCapability(spv::CapabilityGroupNonUniformPartitionedNV);
- break;
- #endif
- default: assert(0 && "Unhandled subgroup operation!");
- }
- const bool isUnsigned = typeProxy == glslang::EbtUint || typeProxy == glslang::EbtUint64;
- const bool isFloat = typeProxy == glslang::EbtFloat || typeProxy == glslang::EbtDouble;
- const bool isBool = typeProxy == glslang::EbtBool;
- spv::Op opCode = spv::OpNop;
- // Figure out which opcode to use.
- switch (op) {
- case glslang::EOpSubgroupElect: opCode = spv::OpGroupNonUniformElect; break;
- case glslang::EOpSubgroupAll: opCode = spv::OpGroupNonUniformAll; break;
- case glslang::EOpSubgroupAny: opCode = spv::OpGroupNonUniformAny; break;
- case glslang::EOpSubgroupAllEqual: opCode = spv::OpGroupNonUniformAllEqual; break;
- case glslang::EOpSubgroupBroadcast: opCode = spv::OpGroupNonUniformBroadcast; break;
- case glslang::EOpSubgroupBroadcastFirst: opCode = spv::OpGroupNonUniformBroadcastFirst; break;
- case glslang::EOpSubgroupBallot: opCode = spv::OpGroupNonUniformBallot; break;
- case glslang::EOpSubgroupInverseBallot: opCode = spv::OpGroupNonUniformInverseBallot; break;
- case glslang::EOpSubgroupBallotBitExtract: opCode = spv::OpGroupNonUniformBallotBitExtract; break;
- case glslang::EOpSubgroupBallotBitCount:
- case glslang::EOpSubgroupBallotInclusiveBitCount:
- case glslang::EOpSubgroupBallotExclusiveBitCount: opCode = spv::OpGroupNonUniformBallotBitCount; break;
- case glslang::EOpSubgroupBallotFindLSB: opCode = spv::OpGroupNonUniformBallotFindLSB; break;
- case glslang::EOpSubgroupBallotFindMSB: opCode = spv::OpGroupNonUniformBallotFindMSB; break;
- case glslang::EOpSubgroupShuffle: opCode = spv::OpGroupNonUniformShuffle; break;
- case glslang::EOpSubgroupShuffleXor: opCode = spv::OpGroupNonUniformShuffleXor; break;
- case glslang::EOpSubgroupShuffleUp: opCode = spv::OpGroupNonUniformShuffleUp; break;
- case glslang::EOpSubgroupShuffleDown: opCode = spv::OpGroupNonUniformShuffleDown; break;
- case glslang::EOpSubgroupAdd:
- case glslang::EOpSubgroupInclusiveAdd:
- case glslang::EOpSubgroupExclusiveAdd:
- case glslang::EOpSubgroupClusteredAdd:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedAdd:
- case glslang::EOpSubgroupPartitionedInclusiveAdd:
- case glslang::EOpSubgroupPartitionedExclusiveAdd:
- #endif
- if (isFloat) {
- opCode = spv::OpGroupNonUniformFAdd;
- } else {
- opCode = spv::OpGroupNonUniformIAdd;
- }
- break;
- case glslang::EOpSubgroupMul:
- case glslang::EOpSubgroupInclusiveMul:
- case glslang::EOpSubgroupExclusiveMul:
- case glslang::EOpSubgroupClusteredMul:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedMul:
- case glslang::EOpSubgroupPartitionedInclusiveMul:
- case glslang::EOpSubgroupPartitionedExclusiveMul:
- #endif
- if (isFloat) {
- opCode = spv::OpGroupNonUniformFMul;
- } else {
- opCode = spv::OpGroupNonUniformIMul;
- }
- break;
- case glslang::EOpSubgroupMin:
- case glslang::EOpSubgroupInclusiveMin:
- case glslang::EOpSubgroupExclusiveMin:
- case glslang::EOpSubgroupClusteredMin:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedMin:
- case glslang::EOpSubgroupPartitionedInclusiveMin:
- case glslang::EOpSubgroupPartitionedExclusiveMin:
- #endif
- if (isFloat) {
- opCode = spv::OpGroupNonUniformFMin;
- } else if (isUnsigned) {
- opCode = spv::OpGroupNonUniformUMin;
- } else {
- opCode = spv::OpGroupNonUniformSMin;
- }
- break;
- case glslang::EOpSubgroupMax:
- case glslang::EOpSubgroupInclusiveMax:
- case glslang::EOpSubgroupExclusiveMax:
- case glslang::EOpSubgroupClusteredMax:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedMax:
- case glslang::EOpSubgroupPartitionedInclusiveMax:
- case glslang::EOpSubgroupPartitionedExclusiveMax:
- #endif
- if (isFloat) {
- opCode = spv::OpGroupNonUniformFMax;
- } else if (isUnsigned) {
- opCode = spv::OpGroupNonUniformUMax;
- } else {
- opCode = spv::OpGroupNonUniformSMax;
- }
- break;
- case glslang::EOpSubgroupAnd:
- case glslang::EOpSubgroupInclusiveAnd:
- case glslang::EOpSubgroupExclusiveAnd:
- case glslang::EOpSubgroupClusteredAnd:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedAnd:
- case glslang::EOpSubgroupPartitionedInclusiveAnd:
- case glslang::EOpSubgroupPartitionedExclusiveAnd:
- #endif
- if (isBool) {
- opCode = spv::OpGroupNonUniformLogicalAnd;
- } else {
- opCode = spv::OpGroupNonUniformBitwiseAnd;
- }
- break;
- case glslang::EOpSubgroupOr:
- case glslang::EOpSubgroupInclusiveOr:
- case glslang::EOpSubgroupExclusiveOr:
- case glslang::EOpSubgroupClusteredOr:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedOr:
- case glslang::EOpSubgroupPartitionedInclusiveOr:
- case glslang::EOpSubgroupPartitionedExclusiveOr:
- #endif
- if (isBool) {
- opCode = spv::OpGroupNonUniformLogicalOr;
- } else {
- opCode = spv::OpGroupNonUniformBitwiseOr;
- }
- break;
- case glslang::EOpSubgroupXor:
- case glslang::EOpSubgroupInclusiveXor:
- case glslang::EOpSubgroupExclusiveXor:
- case glslang::EOpSubgroupClusteredXor:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedXor:
- case glslang::EOpSubgroupPartitionedInclusiveXor:
- case glslang::EOpSubgroupPartitionedExclusiveXor:
- #endif
- if (isBool) {
- opCode = spv::OpGroupNonUniformLogicalXor;
- } else {
- opCode = spv::OpGroupNonUniformBitwiseXor;
- }
- break;
- case glslang::EOpSubgroupQuadBroadcast: opCode = spv::OpGroupNonUniformQuadBroadcast; break;
- case glslang::EOpSubgroupQuadSwapHorizontal:
- case glslang::EOpSubgroupQuadSwapVertical:
- case glslang::EOpSubgroupQuadSwapDiagonal: opCode = spv::OpGroupNonUniformQuadSwap; break;
- default: assert(0 && "Unhandled subgroup operation!");
- }
- // get the right Group Operation
- spv::GroupOperation groupOperation = spv::GroupOperationMax;
- switch (op) {
- default:
- break;
- case glslang::EOpSubgroupBallotBitCount:
- case glslang::EOpSubgroupAdd:
- case glslang::EOpSubgroupMul:
- case glslang::EOpSubgroupMin:
- case glslang::EOpSubgroupMax:
- case glslang::EOpSubgroupAnd:
- case glslang::EOpSubgroupOr:
- case glslang::EOpSubgroupXor:
- groupOperation = spv::GroupOperationReduce;
- break;
- case glslang::EOpSubgroupBallotInclusiveBitCount:
- case glslang::EOpSubgroupInclusiveAdd:
- case glslang::EOpSubgroupInclusiveMul:
- case glslang::EOpSubgroupInclusiveMin:
- case glslang::EOpSubgroupInclusiveMax:
- case glslang::EOpSubgroupInclusiveAnd:
- case glslang::EOpSubgroupInclusiveOr:
- case glslang::EOpSubgroupInclusiveXor:
- groupOperation = spv::GroupOperationInclusiveScan;
- break;
- case glslang::EOpSubgroupBallotExclusiveBitCount:
- case glslang::EOpSubgroupExclusiveAdd:
- case glslang::EOpSubgroupExclusiveMul:
- case glslang::EOpSubgroupExclusiveMin:
- case glslang::EOpSubgroupExclusiveMax:
- case glslang::EOpSubgroupExclusiveAnd:
- case glslang::EOpSubgroupExclusiveOr:
- case glslang::EOpSubgroupExclusiveXor:
- groupOperation = spv::GroupOperationExclusiveScan;
- break;
- case glslang::EOpSubgroupClusteredAdd:
- case glslang::EOpSubgroupClusteredMul:
- case glslang::EOpSubgroupClusteredMin:
- case glslang::EOpSubgroupClusteredMax:
- case glslang::EOpSubgroupClusteredAnd:
- case glslang::EOpSubgroupClusteredOr:
- case glslang::EOpSubgroupClusteredXor:
- groupOperation = spv::GroupOperationClusteredReduce;
- break;
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedAdd:
- case glslang::EOpSubgroupPartitionedMul:
- case glslang::EOpSubgroupPartitionedMin:
- case glslang::EOpSubgroupPartitionedMax:
- case glslang::EOpSubgroupPartitionedAnd:
- case glslang::EOpSubgroupPartitionedOr:
- case glslang::EOpSubgroupPartitionedXor:
- groupOperation = spv::GroupOperationPartitionedReduceNV;
- break;
- case glslang::EOpSubgroupPartitionedInclusiveAdd:
- case glslang::EOpSubgroupPartitionedInclusiveMul:
- case glslang::EOpSubgroupPartitionedInclusiveMin:
- case glslang::EOpSubgroupPartitionedInclusiveMax:
- case glslang::EOpSubgroupPartitionedInclusiveAnd:
- case glslang::EOpSubgroupPartitionedInclusiveOr:
- case glslang::EOpSubgroupPartitionedInclusiveXor:
- groupOperation = spv::GroupOperationPartitionedInclusiveScanNV;
- break;
- case glslang::EOpSubgroupPartitionedExclusiveAdd:
- case glslang::EOpSubgroupPartitionedExclusiveMul:
- case glslang::EOpSubgroupPartitionedExclusiveMin:
- case glslang::EOpSubgroupPartitionedExclusiveMax:
- case glslang::EOpSubgroupPartitionedExclusiveAnd:
- case glslang::EOpSubgroupPartitionedExclusiveOr:
- case glslang::EOpSubgroupPartitionedExclusiveXor:
- groupOperation = spv::GroupOperationPartitionedExclusiveScanNV;
- break;
- #endif
- }
- // build the instruction
- std::vector<spv::IdImmediate> spvGroupOperands;
- // Every operation begins with the Execution Scope operand.
- spv::IdImmediate executionScope = { true, builder.makeUintConstant(spv::ScopeSubgroup) };
- spvGroupOperands.push_back(executionScope);
- // Next, for all operations that use a Group Operation, push that as an operand.
- if (groupOperation != spv::GroupOperationMax) {
- spv::IdImmediate groupOperand = { false, groupOperation };
- spvGroupOperands.push_back(groupOperand);
- }
- // Push back the operands next.
- for (auto opIt = operands.cbegin(); opIt != operands.cend(); ++opIt) {
- spv::IdImmediate operand = { true, *opIt };
- spvGroupOperands.push_back(operand);
- }
- // Some opcodes have additional operands.
- spv::Id directionId = spv::NoResult;
- switch (op) {
- default: break;
- case glslang::EOpSubgroupQuadSwapHorizontal: directionId = builder.makeUintConstant(0); break;
- case glslang::EOpSubgroupQuadSwapVertical: directionId = builder.makeUintConstant(1); break;
- case glslang::EOpSubgroupQuadSwapDiagonal: directionId = builder.makeUintConstant(2); break;
- }
- if (directionId != spv::NoResult) {
- spv::IdImmediate direction = { true, directionId };
- spvGroupOperands.push_back(direction);
- }
- return builder.createOp(opCode, typeId, spvGroupOperands);
- }
- spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy)
- {
- bool isUnsigned = isTypeUnsignedInt(typeProxy);
- bool isFloat = isTypeFloat(typeProxy);
- spv::Op opCode = spv::OpNop;
- int extBuiltins = -1;
- int libCall = -1;
- size_t consumedOperands = operands.size();
- spv::Id typeId0 = 0;
- if (consumedOperands > 0)
- typeId0 = builder.getTypeId(operands[0]);
- spv::Id typeId1 = 0;
- if (consumedOperands > 1)
- typeId1 = builder.getTypeId(operands[1]);
- spv::Id frexpIntType = 0;
- switch (op) {
- case glslang::EOpMin:
- if (isFloat)
- libCall = spv::GLSLstd450FMin;
- else if (isUnsigned)
- libCall = spv::GLSLstd450UMin;
- else
- libCall = spv::GLSLstd450SMin;
- builder.promoteScalar(precision, operands.front(), operands.back());
- break;
- case glslang::EOpModf:
- libCall = spv::GLSLstd450Modf;
- break;
- case glslang::EOpMax:
- if (isFloat)
- libCall = spv::GLSLstd450FMax;
- else if (isUnsigned)
- libCall = spv::GLSLstd450UMax;
- else
- libCall = spv::GLSLstd450SMax;
- builder.promoteScalar(precision, operands.front(), operands.back());
- break;
- case glslang::EOpPow:
- libCall = spv::GLSLstd450Pow;
- break;
- case glslang::EOpDot:
- opCode = spv::OpDot;
- break;
- case glslang::EOpAtan:
- libCall = spv::GLSLstd450Atan2;
- break;
- case glslang::EOpClamp:
- if (isFloat)
- libCall = spv::GLSLstd450FClamp;
- else if (isUnsigned)
- libCall = spv::GLSLstd450UClamp;
- else
- libCall = spv::GLSLstd450SClamp;
- builder.promoteScalar(precision, operands.front(), operands[1]);
- builder.promoteScalar(precision, operands.front(), operands[2]);
- break;
- case glslang::EOpMix:
- if (! builder.isBoolType(builder.getScalarTypeId(builder.getTypeId(operands.back())))) {
- assert(isFloat);
- libCall = spv::GLSLstd450FMix;
- } else {
- opCode = spv::OpSelect;
- std::swap(operands.front(), operands.back());
- }
- builder.promoteScalar(precision, operands.front(), operands.back());
- break;
- case glslang::EOpStep:
- libCall = spv::GLSLstd450Step;
- builder.promoteScalar(precision, operands.front(), operands.back());
- break;
- case glslang::EOpSmoothStep:
- libCall = spv::GLSLstd450SmoothStep;
- builder.promoteScalar(precision, operands[0], operands[2]);
- builder.promoteScalar(precision, operands[1], operands[2]);
- break;
- case glslang::EOpDistance:
- libCall = spv::GLSLstd450Distance;
- break;
- case glslang::EOpCross:
- libCall = spv::GLSLstd450Cross;
- break;
- case glslang::EOpFaceForward:
- libCall = spv::GLSLstd450FaceForward;
- break;
- case glslang::EOpReflect:
- libCall = spv::GLSLstd450Reflect;
- break;
- case glslang::EOpRefract:
- libCall = spv::GLSLstd450Refract;
- break;
- case glslang::EOpInterpolateAtSample:
- #ifdef AMD_EXTENSIONS
- if (typeProxy == glslang::EbtFloat16)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
- #endif
- libCall = spv::GLSLstd450InterpolateAtSample;
- break;
- case glslang::EOpInterpolateAtOffset:
- #ifdef AMD_EXTENSIONS
- if (typeProxy == glslang::EbtFloat16)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
- #endif
- libCall = spv::GLSLstd450InterpolateAtOffset;
- break;
- case glslang::EOpAddCarry:
- opCode = spv::OpIAddCarry;
- typeId = builder.makeStructResultType(typeId0, typeId0);
- consumedOperands = 2;
- break;
- case glslang::EOpSubBorrow:
- opCode = spv::OpISubBorrow;
- typeId = builder.makeStructResultType(typeId0, typeId0);
- consumedOperands = 2;
- break;
- case glslang::EOpUMulExtended:
- opCode = spv::OpUMulExtended;
- typeId = builder.makeStructResultType(typeId0, typeId0);
- consumedOperands = 2;
- break;
- case glslang::EOpIMulExtended:
- opCode = spv::OpSMulExtended;
- typeId = builder.makeStructResultType(typeId0, typeId0);
- consumedOperands = 2;
- break;
- case glslang::EOpBitfieldExtract:
- if (isUnsigned)
- opCode = spv::OpBitFieldUExtract;
- else
- opCode = spv::OpBitFieldSExtract;
- break;
- case glslang::EOpBitfieldInsert:
- opCode = spv::OpBitFieldInsert;
- break;
- case glslang::EOpFma:
- libCall = spv::GLSLstd450Fma;
- break;
- case glslang::EOpFrexp:
- {
- libCall = spv::GLSLstd450FrexpStruct;
- assert(builder.isPointerType(typeId1));
- typeId1 = builder.getContainedTypeId(typeId1);
- int width = builder.getScalarTypeWidth(typeId1);
- #ifdef AMD_EXTENSIONS
- if (width == 16)
- // Using 16-bit exp operand, enable extension SPV_AMD_gpu_shader_int16
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_int16);
- #endif
- if (builder.getNumComponents(operands[0]) == 1)
- frexpIntType = builder.makeIntegerType(width, true);
- else
- frexpIntType = builder.makeVectorType(builder.makeIntegerType(width, true), builder.getNumComponents(operands[0]));
- typeId = builder.makeStructResultType(typeId0, frexpIntType);
- consumedOperands = 1;
- }
- break;
- case glslang::EOpLdexp:
- libCall = spv::GLSLstd450Ldexp;
- break;
- case glslang::EOpReadInvocation:
- return createInvocationsOperation(op, typeId, operands, typeProxy);
- case glslang::EOpSubgroupBroadcast:
- case glslang::EOpSubgroupBallotBitExtract:
- case glslang::EOpSubgroupShuffle:
- case glslang::EOpSubgroupShuffleXor:
- case glslang::EOpSubgroupShuffleUp:
- case glslang::EOpSubgroupShuffleDown:
- case glslang::EOpSubgroupClusteredAdd:
- case glslang::EOpSubgroupClusteredMul:
- case glslang::EOpSubgroupClusteredMin:
- case glslang::EOpSubgroupClusteredMax:
- case glslang::EOpSubgroupClusteredAnd:
- case glslang::EOpSubgroupClusteredOr:
- case glslang::EOpSubgroupClusteredXor:
- case glslang::EOpSubgroupQuadBroadcast:
- #ifdef NV_EXTENSIONS
- case glslang::EOpSubgroupPartitionedAdd:
- case glslang::EOpSubgroupPartitionedMul:
- case glslang::EOpSubgroupPartitionedMin:
- case glslang::EOpSubgroupPartitionedMax:
- case glslang::EOpSubgroupPartitionedAnd:
- case glslang::EOpSubgroupPartitionedOr:
- case glslang::EOpSubgroupPartitionedXor:
- case glslang::EOpSubgroupPartitionedInclusiveAdd:
- case glslang::EOpSubgroupPartitionedInclusiveMul:
- case glslang::EOpSubgroupPartitionedInclusiveMin:
- case glslang::EOpSubgroupPartitionedInclusiveMax:
- case glslang::EOpSubgroupPartitionedInclusiveAnd:
- case glslang::EOpSubgroupPartitionedInclusiveOr:
- case glslang::EOpSubgroupPartitionedInclusiveXor:
- case glslang::EOpSubgroupPartitionedExclusiveAdd:
- case glslang::EOpSubgroupPartitionedExclusiveMul:
- case glslang::EOpSubgroupPartitionedExclusiveMin:
- case glslang::EOpSubgroupPartitionedExclusiveMax:
- case glslang::EOpSubgroupPartitionedExclusiveAnd:
- case glslang::EOpSubgroupPartitionedExclusiveOr:
- case glslang::EOpSubgroupPartitionedExclusiveXor:
- #endif
- return createSubgroupOperation(op, typeId, operands, typeProxy);
- #ifdef AMD_EXTENSIONS
- case glslang::EOpSwizzleInvocations:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_ballot);
- libCall = spv::SwizzleInvocationsAMD;
- break;
- case glslang::EOpSwizzleInvocationsMasked:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_ballot);
- libCall = spv::SwizzleInvocationsMaskedAMD;
- break;
- case glslang::EOpWriteInvocation:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_ballot);
- libCall = spv::WriteInvocationAMD;
- break;
- case glslang::EOpMin3:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_trinary_minmax);
- if (isFloat)
- libCall = spv::FMin3AMD;
- else {
- if (isUnsigned)
- libCall = spv::UMin3AMD;
- else
- libCall = spv::SMin3AMD;
- }
- break;
- case glslang::EOpMax3:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_trinary_minmax);
- if (isFloat)
- libCall = spv::FMax3AMD;
- else {
- if (isUnsigned)
- libCall = spv::UMax3AMD;
- else
- libCall = spv::SMax3AMD;
- }
- break;
- case glslang::EOpMid3:
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_trinary_minmax);
- if (isFloat)
- libCall = spv::FMid3AMD;
- else {
- if (isUnsigned)
- libCall = spv::UMid3AMD;
- else
- libCall = spv::SMid3AMD;
- }
- break;
- case glslang::EOpInterpolateAtVertex:
- if (typeProxy == glslang::EbtFloat16)
- builder.addExtension(spv::E_SPV_AMD_gpu_shader_half_float);
- extBuiltins = getExtBuiltins(spv::E_SPV_AMD_shader_explicit_vertex_parameter);
- libCall = spv::InterpolateAtVertexAMD;
- break;
- #endif
- default:
- return 0;
- }
- spv::Id id = 0;
- if (libCall >= 0) {
- // Use an extended instruction from the standard library.
- // Construct the call arguments, without modifying the original operands vector.
- // We might need the remaining arguments, e.g. in the EOpFrexp case.
- std::vector<spv::Id> callArguments(operands.begin(), operands.begin() + consumedOperands);
- id = builder.createBuiltinCall(typeId, extBuiltins >= 0 ? extBuiltins : stdBuiltins, libCall, callArguments);
- } else {
- switch (consumedOperands) {
- case 0:
- // should all be handled by visitAggregate and createNoArgOperation
- assert(0);
- return 0;
- case 1:
- // should all be handled by createUnaryOperation
- assert(0);
- return 0;
- case 2:
- id = builder.createBinOp(opCode, typeId, operands[0], operands[1]);
- break;
- default:
- // anything 3 or over doesn't have l-value operands, so all should be consumed
- assert(consumedOperands == operands.size());
- id = builder.createOp(opCode, typeId, operands);
- break;
- }
- }
- // Decode the return types that were structures
- switch (op) {
- case glslang::EOpAddCarry:
- case glslang::EOpSubBorrow:
- builder.createStore(builder.createCompositeExtract(id, typeId0, 1), operands[2]);
- id = builder.createCompositeExtract(id, typeId0, 0);
- break;
- case glslang::EOpUMulExtended:
- case glslang::EOpIMulExtended:
- builder.createStore(builder.createCompositeExtract(id, typeId0, 0), operands[3]);
- builder.createStore(builder.createCompositeExtract(id, typeId0, 1), operands[2]);
- break;
- case glslang::EOpFrexp:
- {
- assert(operands.size() == 2);
- if (builder.isFloatType(builder.getScalarTypeId(typeId1))) {
- // "exp" is floating-point type (from HLSL intrinsic)
- spv::Id member1 = builder.createCompositeExtract(id, frexpIntType, 1);
- member1 = builder.createUnaryOp(spv::OpConvertSToF, typeId1, member1);
- builder.createStore(member1, operands[1]);
- } else
- // "exp" is integer type (from GLSL built-in function)
- builder.createStore(builder.createCompositeExtract(id, frexpIntType, 1), operands[1]);
- id = builder.createCompositeExtract(id, typeId0, 0);
- }
- break;
- default:
- break;
- }
- return builder.setPrecision(id, precision);
- }
- // Intrinsics with no arguments (or no return value, and no precision).
- spv::Id TGlslangToSpvTraverser::createNoArgOperation(glslang::TOperator op, spv::Decoration precision, spv::Id typeId)
- {
- // TODO: get the barrier operands correct
- switch (op) {
- case glslang::EOpEmitVertex:
- builder.createNoResultOp(spv::OpEmitVertex);
- return 0;
- case glslang::EOpEndPrimitive:
- builder.createNoResultOp(spv::OpEndPrimitive);
- return 0;
- case glslang::EOpBarrier:
- if (glslangIntermediate->getStage() == EShLangTessControl) {
- builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeInvocation, spv::MemorySemanticsMaskNone);
- // TODO: prefer the following, when available:
- // builder.createControlBarrier(spv::ScopePatch, spv::ScopePatch,
- // spv::MemorySemanticsPatchMask |
- // spv::MemorySemanticsAcquireReleaseMask);
- } else {
- builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeWorkgroup,
- spv::MemorySemanticsWorkgroupMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- }
- return 0;
- case glslang::EOpMemoryBarrier:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsAllMemory |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpMemoryBarrierAtomicCounter:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsAtomicCounterMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpMemoryBarrierBuffer:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsUniformMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpMemoryBarrierImage:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsImageMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpMemoryBarrierShared:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsWorkgroupMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpGroupMemoryBarrier:
- builder.createMemoryBarrier(spv::ScopeWorkgroup, spv::MemorySemanticsAllMemory |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpAllMemoryBarrierWithGroupSync:
- builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeDevice,
- spv::MemorySemanticsAllMemory |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpDeviceMemoryBarrier:
- builder.createMemoryBarrier(spv::ScopeDevice, spv::MemorySemanticsUniformMemoryMask |
- spv::MemorySemanticsImageMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpDeviceMemoryBarrierWithGroupSync:
- builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeDevice, spv::MemorySemanticsUniformMemoryMask |
- spv::MemorySemanticsImageMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpWorkgroupMemoryBarrier:
- builder.createMemoryBarrier(spv::ScopeWorkgroup, spv::MemorySemanticsWorkgroupMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpWorkgroupMemoryBarrierWithGroupSync:
- builder.createControlBarrier(spv::ScopeWorkgroup, spv::ScopeWorkgroup,
- spv::MemorySemanticsWorkgroupMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return 0;
- case glslang::EOpSubgroupBarrier:
- builder.createControlBarrier(spv::ScopeSubgroup, spv::ScopeSubgroup, spv::MemorySemanticsAllMemory |
- spv::MemorySemanticsAcquireReleaseMask);
- return spv::NoResult;
- case glslang::EOpSubgroupMemoryBarrier:
- builder.createMemoryBarrier(spv::ScopeSubgroup, spv::MemorySemanticsAllMemory |
- spv::MemorySemanticsAcquireReleaseMask);
- return spv::NoResult;
- case glslang::EOpSubgroupMemoryBarrierBuffer:
- builder.createMemoryBarrier(spv::ScopeSubgroup, spv::MemorySemanticsUniformMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return spv::NoResult;
- case glslang::EOpSubgroupMemoryBarrierImage:
- builder.createMemoryBarrier(spv::ScopeSubgroup, spv::MemorySemanticsImageMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return spv::NoResult;
- case glslang::EOpSubgroupMemoryBarrierShared:
- builder.createMemoryBarrier(spv::ScopeSubgroup, spv::MemorySemanticsWorkgroupMemoryMask |
- spv::MemorySemanticsAcquireReleaseMask);
- return spv::NoResult;
- case glslang::EOpSubgroupElect: {
- std::vector<spv::Id> operands;
- return createSubgroupOperation(op, typeId, operands, glslang::EbtVoid);
- }
- #ifdef AMD_EXTENSIONS
- case glslang::EOpTime:
- {
- std::vector<spv::Id> args; // Dummy arguments
- spv::Id id = builder.createBuiltinCall(typeId, getExtBuiltins(spv::E_SPV_AMD_gcn_shader), spv::TimeAMD, args);
- return builder.setPrecision(id, precision);
- }
- #endif
- default:
- logger->missingFunctionality("unknown operation with no arguments");
- return 0;
- }
- }
- spv::Id TGlslangToSpvTraverser::getSymbolId(const glslang::TIntermSymbol* symbol)
- {
- auto iter = symbolValues.find(symbol->getId());
- spv::Id id;
- if (symbolValues.end() != iter) {
- id = iter->second;
- return id;
- }
- // it was not found, create it
- id = createSpvVariable(symbol);
- symbolValues[symbol->getId()] = id;
- if (symbol->getBasicType() != glslang::EbtBlock) {
- builder.addDecoration(id, TranslatePrecisionDecoration(symbol->getType()));
- builder.addDecoration(id, TranslateInterpolationDecoration(symbol->getType().getQualifier()));
- builder.addDecoration(id, TranslateAuxiliaryStorageDecoration(symbol->getType().getQualifier()));
- if (symbol->getType().getQualifier().hasSpecConstantId())
- builder.addDecoration(id, spv::DecorationSpecId, symbol->getType().getQualifier().layoutSpecConstantId);
- if (symbol->getQualifier().hasIndex())
- builder.addDecoration(id, spv::DecorationIndex, symbol->getQualifier().layoutIndex);
- if (symbol->getQualifier().hasComponent())
- builder.addDecoration(id, spv::DecorationComponent, symbol->getQualifier().layoutComponent);
- // atomic counters use this:
- if (symbol->getQualifier().hasOffset())
- builder.addDecoration(id, spv::DecorationOffset, symbol->getQualifier().layoutOffset);
- }
- if (symbol->getQualifier().hasLocation())
- builder.addDecoration(id, spv::DecorationLocation, symbol->getQualifier().layoutLocation);
- builder.addDecoration(id, TranslateInvariantDecoration(symbol->getType().getQualifier()));
- if (symbol->getQualifier().hasStream() && glslangIntermediate->isMultiStream()) {
- builder.addCapability(spv::CapabilityGeometryStreams);
- builder.addDecoration(id, spv::DecorationStream, symbol->getQualifier().layoutStream);
- }
- if (symbol->getQualifier().hasSet())
- builder.addDecoration(id, spv::DecorationDescriptorSet, symbol->getQualifier().layoutSet);
- else if (IsDescriptorResource(symbol->getType())) {
- // default to 0
- builder.addDecoration(id, spv::DecorationDescriptorSet, 0);
- }
- if (symbol->getQualifier().hasBinding())
- builder.addDecoration(id, spv::DecorationBinding, symbol->getQualifier().layoutBinding);
- if (symbol->getQualifier().hasAttachment())
- builder.addDecoration(id, spv::DecorationInputAttachmentIndex, symbol->getQualifier().layoutAttachment);
- if (glslangIntermediate->getXfbMode()) {
- builder.addCapability(spv::CapabilityTransformFeedback);
- if (symbol->getQualifier().hasXfbStride())
- builder.addDecoration(id, spv::DecorationXfbStride, symbol->getQualifier().layoutXfbStride);
- if (symbol->getQualifier().hasXfbBuffer()) {
- builder.addDecoration(id, spv::DecorationXfbBuffer, symbol->getQualifier().layoutXfbBuffer);
- unsigned stride = glslangIntermediate->getXfbStride(symbol->getQualifier().layoutXfbBuffer);
- if (stride != glslang::TQualifier::layoutXfbStrideEnd)
- builder.addDecoration(id, spv::DecorationXfbStride, stride);
- }
- if (symbol->getQualifier().hasXfbOffset())
- builder.addDecoration(id, spv::DecorationOffset, symbol->getQualifier().layoutXfbOffset);
- }
- if (symbol->getType().isImage()) {
- std::vector<spv::Decoration> memory;
- TranslateMemoryDecoration(symbol->getType().getQualifier(), memory);
- for (unsigned int i = 0; i < memory.size(); ++i)
- builder.addDecoration(id, memory[i]);
- }
- // built-in variable decorations
- spv::BuiltIn builtIn = TranslateBuiltInDecoration(symbol->getQualifier().builtIn, false);
- if (builtIn != spv::BuiltInMax)
- builder.addDecoration(id, spv::DecorationBuiltIn, (int)builtIn);
- // nonuniform
- builder.addDecoration(id, TranslateNonUniformDecoration(symbol->getType().getQualifier()));
- #ifdef NV_EXTENSIONS
- if (builtIn == spv::BuiltInSampleMask) {
- spv::Decoration decoration;
- // GL_NV_sample_mask_override_coverage extension
- if (glslangIntermediate->getLayoutOverrideCoverage())
- decoration = (spv::Decoration)spv::DecorationOverrideCoverageNV;
- else
- decoration = (spv::Decoration)spv::DecorationMax;
- builder.addDecoration(id, decoration);
- if (decoration != spv::DecorationMax) {
- builder.addExtension(spv::E_SPV_NV_sample_mask_override_coverage);
- }
- }
- else if (builtIn == spv::BuiltInLayer) {
- // SPV_NV_viewport_array2 extension
- if (symbol->getQualifier().layoutViewportRelative) {
- builder.addDecoration(id, (spv::Decoration)spv::DecorationViewportRelativeNV);
- builder.addCapability(spv::CapabilityShaderViewportMaskNV);
- builder.addExtension(spv::E_SPV_NV_viewport_array2);
- }
- if (symbol->getQualifier().layoutSecondaryViewportRelativeOffset != -2048) {
- builder.addDecoration(id, (spv::Decoration)spv::DecorationSecondaryViewportRelativeNV,
- symbol->getQualifier().layoutSecondaryViewportRelativeOffset);
- builder.addCapability(spv::CapabilityShaderStereoViewNV);
- builder.addExtension(spv::E_SPV_NV_stereo_view_rendering);
- }
- }
- if (symbol->getQualifier().layoutPassthrough) {
- builder.addDecoration(id, spv::DecorationPassthroughNV);
- builder.addCapability(spv::CapabilityGeometryShaderPassthroughNV);
- builder.addExtension(spv::E_SPV_NV_geometry_shader_passthrough);
- }
- #endif
- if (glslangIntermediate->getHlslFunctionality1() && symbol->getType().getQualifier().semanticName != nullptr) {
- builder.addExtension("SPV_GOOGLE_hlsl_functionality1");
- builder.addDecoration(id, (spv::Decoration)spv::DecorationHlslSemanticGOOGLE,
- symbol->getType().getQualifier().semanticName);
- }
- return id;
- }
- // Make a full tree of instructions to build a SPIR-V specialization constant,
- // or regular constant if possible.
- //
- // TBD: this is not yet done, nor verified to be the best design, it does do the leaf symbols though
- //
- // Recursively walk the nodes. The nodes form a tree whose leaves are
- // regular constants, which themselves are trees that createSpvConstant()
- // recursively walks. So, this function walks the "top" of the tree:
- // - emit specialization constant-building instructions for specConstant
- // - when running into a non-spec-constant, switch to createSpvConstant()
- spv::Id TGlslangToSpvTraverser::createSpvConstant(const glslang::TIntermTyped& node)
- {
- assert(node.getQualifier().isConstant());
- // Handle front-end constants first (non-specialization constants).
- if (! node.getQualifier().specConstant) {
- // hand off to the non-spec-constant path
- assert(node.getAsConstantUnion() != nullptr || node.getAsSymbolNode() != nullptr);
- int nextConst = 0;
- return createSpvConstantFromConstUnionArray(node.getType(), node.getAsConstantUnion() ? node.getAsConstantUnion()->getConstArray() : node.getAsSymbolNode()->getConstArray(),
- nextConst, false);
- }
- // We now know we have a specialization constant to build
- // gl_WorkGroupSize is a special case until the front-end handles hierarchical specialization constants,
- // even then, it's specialization ids are handled by special case syntax in GLSL: layout(local_size_x = ...
- if (node.getType().getQualifier().builtIn == glslang::EbvWorkGroupSize) {
- std::vector<spv::Id> dimConstId;
- for (int dim = 0; dim < 3; ++dim) {
- bool specConst = (glslangIntermediate->getLocalSizeSpecId(dim) != glslang::TQualifier::layoutNotSet);
- dimConstId.push_back(builder.makeUintConstant(glslangIntermediate->getLocalSize(dim), specConst));
- if (specConst) {
- builder.addDecoration(dimConstId.back(), spv::DecorationSpecId,
- glslangIntermediate->getLocalSizeSpecId(dim));
- }
- }
- return builder.makeCompositeConstant(builder.makeVectorType(builder.makeUintType(32), 3), dimConstId, true);
- }
- // An AST node labelled as specialization constant should be a symbol node.
- // Its initializer should either be a sub tree with constant nodes, or a constant union array.
- if (auto* sn = node.getAsSymbolNode()) {
- if (auto* sub_tree = sn->getConstSubtree()) {
- // Traverse the constant constructor sub tree like generating normal run-time instructions.
- // During the AST traversal, if the node is marked as 'specConstant', SpecConstantOpModeGuard
- // will set the builder into spec constant op instruction generating mode.
- sub_tree->traverse(this);
- return accessChainLoad(sub_tree->getType());
- } else if (auto* const_union_array = &sn->getConstArray()){
- int nextConst = 0;
- spv::Id id = createSpvConstantFromConstUnionArray(sn->getType(), *const_union_array, nextConst, true);
- builder.addName(id, sn->getName().c_str());
- return id;
- }
- }
- // Neither a front-end constant node, nor a specialization constant node with constant union array or
- // constant sub tree as initializer.
- logger->missingFunctionality("Neither a front-end constant nor a spec constant.");
- exit(1);
- return spv::NoResult;
- }
- // Use 'consts' as the flattened glslang source of scalar constants to recursively
- // build the aggregate SPIR-V constant.
- //
- // If there are not enough elements present in 'consts', 0 will be substituted;
- // an empty 'consts' can be used to create a fully zeroed SPIR-V constant.
- //
- spv::Id TGlslangToSpvTraverser::createSpvConstantFromConstUnionArray(const glslang::TType& glslangType, const glslang::TConstUnionArray& consts, int& nextConst, bool specConstant)
- {
- // vector of constants for SPIR-V
- std::vector<spv::Id> spvConsts;
- // Type is used for struct and array constants
- spv::Id typeId = convertGlslangToSpvType(glslangType);
- if (glslangType.isArray()) {
- glslang::TType elementType(glslangType, 0);
- for (int i = 0; i < glslangType.getOuterArraySize(); ++i)
- spvConsts.push_back(createSpvConstantFromConstUnionArray(elementType, consts, nextConst, false));
- } else if (glslangType.isMatrix()) {
- glslang::TType vectorType(glslangType, 0);
- for (int col = 0; col < glslangType.getMatrixCols(); ++col)
- spvConsts.push_back(createSpvConstantFromConstUnionArray(vectorType, consts, nextConst, false));
- } else if (glslangType.getStruct()) {
- glslang::TVector<glslang::TTypeLoc>::const_iterator iter;
- for (iter = glslangType.getStruct()->begin(); iter != glslangType.getStruct()->end(); ++iter)
- spvConsts.push_back(createSpvConstantFromConstUnionArray(*iter->type, consts, nextConst, false));
- } else if (glslangType.getVectorSize() > 1) {
- for (unsigned int i = 0; i < (unsigned int)glslangType.getVectorSize(); ++i) {
- bool zero = nextConst >= consts.size();
- switch (glslangType.getBasicType()) {
- case glslang::EbtInt8:
- spvConsts.push_back(builder.makeInt8Constant(zero ? 0 : consts[nextConst].getI8Const()));
- break;
- case glslang::EbtUint8:
- spvConsts.push_back(builder.makeUint8Constant(zero ? 0 : consts[nextConst].getU8Const()));
- break;
- case glslang::EbtInt16:
- spvConsts.push_back(builder.makeInt16Constant(zero ? 0 : consts[nextConst].getI16Const()));
- break;
- case glslang::EbtUint16:
- spvConsts.push_back(builder.makeUint16Constant(zero ? 0 : consts[nextConst].getU16Const()));
- break;
- case glslang::EbtInt:
- spvConsts.push_back(builder.makeIntConstant(zero ? 0 : consts[nextConst].getIConst()));
- break;
- case glslang::EbtUint:
- spvConsts.push_back(builder.makeUintConstant(zero ? 0 : consts[nextConst].getUConst()));
- break;
- case glslang::EbtInt64:
- spvConsts.push_back(builder.makeInt64Constant(zero ? 0 : consts[nextConst].getI64Const()));
- break;
- case glslang::EbtUint64:
- spvConsts.push_back(builder.makeUint64Constant(zero ? 0 : consts[nextConst].getU64Const()));
- break;
- case glslang::EbtFloat:
- spvConsts.push_back(builder.makeFloatConstant(zero ? 0.0F : (float)consts[nextConst].getDConst()));
- break;
- case glslang::EbtDouble:
- spvConsts.push_back(builder.makeDoubleConstant(zero ? 0.0 : consts[nextConst].getDConst()));
- break;
- case glslang::EbtFloat16:
- spvConsts.push_back(builder.makeFloat16Constant(zero ? 0.0F : (float)consts[nextConst].getDConst()));
- break;
- case glslang::EbtBool:
- spvConsts.push_back(builder.makeBoolConstant(zero ? false : consts[nextConst].getBConst()));
- break;
- default:
- assert(0);
- break;
- }
- ++nextConst;
- }
- } else {
- // we have a non-aggregate (scalar) constant
- bool zero = nextConst >= consts.size();
- spv::Id scalar = 0;
- switch (glslangType.getBasicType()) {
- case glslang::EbtInt8:
- scalar = builder.makeInt8Constant(zero ? 0 : consts[nextConst].getI8Const(), specConstant);
- break;
- case glslang::EbtUint8:
- scalar = builder.makeUint8Constant(zero ? 0 : consts[nextConst].getU8Const(), specConstant);
- break;
- case glslang::EbtInt16:
- scalar = builder.makeInt16Constant(zero ? 0 : consts[nextConst].getI16Const(), specConstant);
- break;
- case glslang::EbtUint16:
- scalar = builder.makeUint16Constant(zero ? 0 : consts[nextConst].getU16Const(), specConstant);
- break;
- case glslang::EbtInt:
- scalar = builder.makeIntConstant(zero ? 0 : consts[nextConst].getIConst(), specConstant);
- break;
- case glslang::EbtUint:
- scalar = builder.makeUintConstant(zero ? 0 : consts[nextConst].getUConst(), specConstant);
- break;
- case glslang::EbtInt64:
- scalar = builder.makeInt64Constant(zero ? 0 : consts[nextConst].getI64Const(), specConstant);
- break;
- case glslang::EbtUint64:
- scalar = builder.makeUint64Constant(zero ? 0 : consts[nextConst].getU64Const(), specConstant);
- break;
- case glslang::EbtFloat:
- scalar = builder.makeFloatConstant(zero ? 0.0F : (float)consts[nextConst].getDConst(), specConstant);
- break;
- case glslang::EbtDouble:
- scalar = builder.makeDoubleConstant(zero ? 0.0 : consts[nextConst].getDConst(), specConstant);
- break;
- case glslang::EbtFloat16:
- scalar = builder.makeFloat16Constant(zero ? 0.0F : (float)consts[nextConst].getDConst(), specConstant);
- break;
- case glslang::EbtBool:
- scalar = builder.makeBoolConstant(zero ? false : consts[nextConst].getBConst(), specConstant);
- break;
- default:
- assert(0);
- break;
- }
- ++nextConst;
- return scalar;
- }
- return builder.makeCompositeConstant(typeId, spvConsts);
- }
- // Return true if the node is a constant or symbol whose reading has no
- // non-trivial observable cost or effect.
- bool TGlslangToSpvTraverser::isTrivialLeaf(const glslang::TIntermTyped* node)
- {
- // don't know what this is
- if (node == nullptr)
- return false;
- // a constant is safe
- if (node->getAsConstantUnion() != nullptr)
- return true;
- // not a symbol means non-trivial
- if (node->getAsSymbolNode() == nullptr)
- return false;
- // a symbol, depends on what's being read
- switch (node->getType().getQualifier().storage) {
- case glslang::EvqTemporary:
- case glslang::EvqGlobal:
- case glslang::EvqIn:
- case glslang::EvqInOut:
- case glslang::EvqConst:
- case glslang::EvqConstReadOnly:
- case glslang::EvqUniform:
- return true;
- default:
- return false;
- }
- }
- // A node is trivial if it is a single operation with no side effects.
- // HLSL (and/or vectors) are always trivial, as it does not short circuit.
- // Otherwise, error on the side of saying non-trivial.
- // Return true if trivial.
- bool TGlslangToSpvTraverser::isTrivial(const glslang::TIntermTyped* node)
- {
- if (node == nullptr)
- return false;
- // count non scalars as trivial, as well as anything coming from HLSL
- if (! node->getType().isScalarOrVec1() || glslangIntermediate->getSource() == glslang::EShSourceHlsl)
- return true;
- // symbols and constants are trivial
- if (isTrivialLeaf(node))
- return true;
- // otherwise, it needs to be a simple operation or one or two leaf nodes
- // not a simple operation
- const glslang::TIntermBinary* binaryNode = node->getAsBinaryNode();
- const glslang::TIntermUnary* unaryNode = node->getAsUnaryNode();
- if (binaryNode == nullptr && unaryNode == nullptr)
- return false;
- // not on leaf nodes
- if (binaryNode && (! isTrivialLeaf(binaryNode->getLeft()) || ! isTrivialLeaf(binaryNode->getRight())))
- return false;
- if (unaryNode && ! isTrivialLeaf(unaryNode->getOperand())) {
- return false;
- }
- switch (node->getAsOperator()->getOp()) {
- case glslang::EOpLogicalNot:
- case glslang::EOpConvIntToBool:
- case glslang::EOpConvUintToBool:
- case glslang::EOpConvFloatToBool:
- case glslang::EOpConvDoubleToBool:
- case glslang::EOpEqual:
- case glslang::EOpNotEqual:
- case glslang::EOpLessThan:
- case glslang::EOpGreaterThan:
- case glslang::EOpLessThanEqual:
- case glslang::EOpGreaterThanEqual:
- case glslang::EOpIndexDirect:
- case glslang::EOpIndexDirectStruct:
- case glslang::EOpLogicalXor:
- case glslang::EOpAny:
- case glslang::EOpAll:
- return true;
- default:
- return false;
- }
- }
- // Emit short-circuiting code, where 'right' is never evaluated unless
- // the left side is true (for &&) or false (for ||).
- spv::Id TGlslangToSpvTraverser::createShortCircuit(glslang::TOperator op, glslang::TIntermTyped& left, glslang::TIntermTyped& right)
- {
- spv::Id boolTypeId = builder.makeBoolType();
- // emit left operand
- builder.clearAccessChain();
- left.traverse(this);
- spv::Id leftId = accessChainLoad(left.getType());
- // Operands to accumulate OpPhi operands
- std::vector<spv::Id> phiOperands;
- // accumulate left operand's phi information
- phiOperands.push_back(leftId);
- phiOperands.push_back(builder.getBuildPoint()->getId());
- // Make the two kinds of operation symmetric with a "!"
- // || => emit "if (! left) result = right"
- // && => emit "if ( left) result = right"
- //
- // TODO: this runtime "not" for || could be avoided by adding functionality
- // to 'builder' to have an "else" without an "then"
- if (op == glslang::EOpLogicalOr)
- leftId = builder.createUnaryOp(spv::OpLogicalNot, boolTypeId, leftId);
- // make an "if" based on the left value
- spv::Builder::If ifBuilder(leftId, spv::SelectionControlMaskNone, builder);
- // emit right operand as the "then" part of the "if"
- builder.clearAccessChain();
- right.traverse(this);
- spv::Id rightId = accessChainLoad(right.getType());
- // accumulate left operand's phi information
- phiOperands.push_back(rightId);
- phiOperands.push_back(builder.getBuildPoint()->getId());
- // finish the "if"
- ifBuilder.makeEndIf();
- // phi together the two results
- return builder.createOp(spv::OpPhi, boolTypeId, phiOperands);
- }
- #ifdef AMD_EXTENSIONS
- // Return type Id of the imported set of extended instructions corresponds to the name.
- // Import this set if it has not been imported yet.
- spv::Id TGlslangToSpvTraverser::getExtBuiltins(const char* name)
- {
- if (extBuiltinMap.find(name) != extBuiltinMap.end())
- return extBuiltinMap[name];
- else {
- builder.addExtension(name);
- spv::Id extBuiltins = builder.import(name);
- extBuiltinMap[name] = extBuiltins;
- return extBuiltins;
- }
- }
- #endif
- }; // end anonymous namespace
- namespace glslang {
- void GetSpirvVersion(std::string& version)
- {
- const int bufSize = 100;
- char buf[bufSize];
- snprintf(buf, bufSize, "0x%08x, Revision %d", spv::Version, spv::Revision);
- version = buf;
- }
- // For low-order part of the generator's magic number. Bump up
- // when there is a change in the style (e.g., if SSA form changes,
- // or a different instruction sequence to do something gets used).
- int GetSpirvGeneratorVersion()
- {
- // return 1; // start
- // return 2; // EOpAtomicCounterDecrement gets a post decrement, to map between GLSL -> SPIR-V
- // return 3; // change/correct barrier-instruction operands, to match memory model group decisions
- // return 4; // some deeper access chains: for dynamic vector component, and local Boolean component
- // return 5; // make OpArrayLength result type be an int with signedness of 0
- // return 6; // revert version 5 change, which makes a different (new) kind of incorrect code,
- // versions 4 and 6 each generate OpArrayLength as it has long been done
- return 7; // GLSL volatile keyword maps to both SPIR-V decorations Volatile and Coherent
- }
- // Write SPIR-V out to a binary file
- void OutputSpvBin(const std::vector<unsigned int>& spirv, const char* baseName)
- {
- std::ofstream out;
- out.open(baseName, std::ios::binary | std::ios::out);
- if (out.fail())
- printf("ERROR: Failed to open file: %s\n", baseName);
- for (int i = 0; i < (int)spirv.size(); ++i) {
- unsigned int word = spirv[i];
- out.write((const char*)&word, 4);
- }
- out.close();
- }
- // Write SPIR-V out to a text file with 32-bit hexadecimal words
- void OutputSpvHex(const std::vector<unsigned int>& spirv, const char* baseName, const char* varName)
- {
- std::ofstream out;
- out.open(baseName, std::ios::binary | std::ios::out);
- if (out.fail())
- printf("ERROR: Failed to open file: %s\n", baseName);
- out << "\t// " <<
- glslang::GetSpirvGeneratorVersion() << "." << GLSLANG_MINOR_VERSION << "." << GLSLANG_PATCH_LEVEL <<
- std::endl;
- if (varName != nullptr) {
- out << "\t #pragma once" << std::endl;
- out << "const uint32_t " << varName << "[] = {" << std::endl;
- }
- const int WORDS_PER_LINE = 8;
- for (int i = 0; i < (int)spirv.size(); i += WORDS_PER_LINE) {
- out << "\t";
- for (int j = 0; j < WORDS_PER_LINE && i + j < (int)spirv.size(); ++j) {
- const unsigned int word = spirv[i + j];
- out << "0x" << std::hex << std::setw(8) << std::setfill('0') << word;
- if (i + j + 1 < (int)spirv.size()) {
- out << ",";
- }
- }
- out << std::endl;
- }
- if (varName != nullptr) {
- out << "};";
- }
- out.close();
- }
- //
- // Set up the glslang traversal
- //
- void GlslangToSpv(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv, SpvOptions* options)
- {
- spv::SpvBuildLogger logger;
- GlslangToSpv(intermediate, spirv, &logger, options);
- }
- void GlslangToSpv(const glslang::TIntermediate& intermediate, std::vector<unsigned int>& spirv,
- spv::SpvBuildLogger* logger, SpvOptions* options)
- {
- TIntermNode* root = intermediate.getTreeRoot();
- if (root == 0)
- return;
- glslang::SpvOptions defaultOptions;
- if (options == nullptr)
- options = &defaultOptions;
- glslang::GetThreadPoolAllocator().push();
- TGlslangToSpvTraverser it(intermediate.getSpv().spv, &intermediate, logger, *options);
- root->traverse(&it);
- it.finishSpv();
- it.dumpSpv(spirv);
- #if ENABLE_OPT
- // If from HLSL, run spirv-opt to "legalize" the SPIR-V for Vulkan
- // eg. forward and remove memory writes of opaque types.
- if ((intermediate.getSource() == EShSourceHlsl ||
- options->optimizeSize) &&
- !options->disableOptimizer) {
- spv_target_env target_env = SPV_ENV_UNIVERSAL_1_2;
- spvtools::Optimizer optimizer(target_env);
- optimizer.SetMessageConsumer([](spv_message_level_t level,
- const char* source,
- const spv_position_t& position,
- const char* message) {
- std::cerr << StringifyMessage(level, source, position, message)
- << std::endl;
- });
- optimizer.RegisterPass(CreateMergeReturnPass());
- optimizer.RegisterPass(CreateInlineExhaustivePass());
- optimizer.RegisterPass(CreateEliminateDeadFunctionsPass());
- optimizer.RegisterPass(CreateScalarReplacementPass());
- optimizer.RegisterPass(CreateLocalAccessChainConvertPass());
- optimizer.RegisterPass(CreateLocalSingleBlockLoadStoreElimPass());
- optimizer.RegisterPass(CreateLocalSingleStoreElimPass());
- optimizer.RegisterPass(CreateSimplificationPass());
- optimizer.RegisterPass(CreateAggressiveDCEPass());
- optimizer.RegisterPass(CreateVectorDCEPass());
- optimizer.RegisterPass(CreateDeadInsertElimPass());
- optimizer.RegisterPass(CreateAggressiveDCEPass());
- optimizer.RegisterPass(CreateDeadBranchElimPass());
- optimizer.RegisterPass(CreateBlockMergePass());
- optimizer.RegisterPass(CreateLocalMultiStoreElimPass());
- optimizer.RegisterPass(CreateIfConversionPass());
- optimizer.RegisterPass(CreateSimplificationPass());
- optimizer.RegisterPass(CreateAggressiveDCEPass());
- optimizer.RegisterPass(CreateVectorDCEPass());
- optimizer.RegisterPass(CreateDeadInsertElimPass());
- if (options->optimizeSize) {
- optimizer.RegisterPass(CreateRedundancyEliminationPass());
- // TODO(greg-lunarg): Add this when AMD driver issues are resolved
- // optimizer.RegisterPass(CreateCommonUniformElimPass());
- }
- optimizer.RegisterPass(CreateAggressiveDCEPass());
- optimizer.RegisterPass(CreateCFGCleanupPass());
- if (!optimizer.Run(spirv.data(), spirv.size(), &spirv))
- return;
- }
- #endif
- glslang::GetThreadPoolAllocator().pop();
- }
- }; // end namespace glslang
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