diff options
Diffstat (limited to 'llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp')
| -rw-r--r-- | llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp | 66 |
1 files changed, 53 insertions, 13 deletions
diff --git a/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp b/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp index cf8b833..e1a472f 100644 --- a/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp +++ b/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp @@ -82,6 +82,7 @@ enum class EntryPropsTag { ASStateTag, WaveSize, EntryRootSig, + WaveRange = 23, }; } // namespace @@ -177,14 +178,15 @@ getTagValueAsMetadata(EntryPropsTag Tag, uint64_t Value, LLVMContext &Ctx) { case EntryPropsTag::ASStateTag: case EntryPropsTag::WaveSize: case EntryPropsTag::EntryRootSig: + case EntryPropsTag::WaveRange: llvm_unreachable("NYI: Unhandled entry property tag"); } return MDVals; } -static MDTuple * -getEntryPropAsMetadata(const EntryProperties &EP, uint64_t EntryShaderFlags, - const Triple::EnvironmentType ShaderProfile) { +static MDTuple *getEntryPropAsMetadata(Module &M, const EntryProperties &EP, + uint64_t EntryShaderFlags, + const ModuleMetadataInfo &MMDI) { SmallVector<Metadata *> MDVals; LLVMContext &Ctx = EP.Entry->getContext(); if (EntryShaderFlags != 0) @@ -195,12 +197,13 @@ getEntryPropAsMetadata(const EntryProperties &EP, uint64_t EntryShaderFlags, // FIXME: support more props. // See https://github.com/llvm/llvm-project/issues/57948. // Add shader kind for lib entries. - if (ShaderProfile == Triple::EnvironmentType::Library && + if (MMDI.ShaderProfile == Triple::EnvironmentType::Library && EP.ShaderStage != Triple::EnvironmentType::Library) MDVals.append(getTagValueAsMetadata(EntryPropsTag::ShaderKind, getShaderStage(EP.ShaderStage), Ctx)); if (EP.ShaderStage == Triple::EnvironmentType::Compute) { + // Handle mandatory "hlsl.numthreads" MDVals.emplace_back(ConstantAsMetadata::get(ConstantInt::get( Type::getInt32Ty(Ctx), static_cast<int>(EntryPropsTag::NumThreads)))); Metadata *NumThreadVals[] = {ConstantAsMetadata::get(ConstantInt::get( @@ -210,8 +213,48 @@ getEntryPropAsMetadata(const EntryProperties &EP, uint64_t EntryShaderFlags, ConstantAsMetadata::get(ConstantInt::get( Type::getInt32Ty(Ctx), EP.NumThreadsZ))}; MDVals.emplace_back(MDNode::get(Ctx, NumThreadVals)); + + // Handle optional "hlsl.wavesize". The fields are optionally represented + // if they are non-zero. + if (EP.WaveSizeMin != 0) { + bool IsWaveRange = VersionTuple(6, 8) <= MMDI.ShaderModelVersion; + bool IsWaveSize = + !IsWaveRange && VersionTuple(6, 6) <= MMDI.ShaderModelVersion; + + if (!IsWaveRange && !IsWaveSize) { + reportError(M, "Shader model 6.6 or greater is required to specify " + "the \"hlsl.wavesize\" function attribute"); + return nullptr; + } + + // A range is being specified if EP.WaveSizeMax != 0 + if (EP.WaveSizeMax && !IsWaveRange) { + reportError( + M, "Shader model 6.8 or greater is required to specify " + "wave size range values of the \"hlsl.wavesize\" function " + "attribute"); + return nullptr; + } + + EntryPropsTag Tag = + IsWaveSize ? EntryPropsTag::WaveSize : EntryPropsTag::WaveRange; + MDVals.emplace_back(ConstantAsMetadata::get( + ConstantInt::get(Type::getInt32Ty(Ctx), static_cast<int>(Tag)))); + + SmallVector<Metadata *> WaveSizeVals = {ConstantAsMetadata::get( + ConstantInt::get(Type::getInt32Ty(Ctx), EP.WaveSizeMin))}; + if (IsWaveRange) { + WaveSizeVals.push_back(ConstantAsMetadata::get( + ConstantInt::get(Type::getInt32Ty(Ctx), EP.WaveSizeMax))); + WaveSizeVals.push_back(ConstantAsMetadata::get( + ConstantInt::get(Type::getInt32Ty(Ctx), EP.WaveSizePref))); + } + + MDVals.emplace_back(MDNode::get(Ctx, WaveSizeVals)); + } } } + if (MDVals.empty()) return nullptr; return MDNode::get(Ctx, MDVals); @@ -236,12 +279,11 @@ static MDTuple *constructEntryMetadata(const Function *EntryFn, return MDNode::get(Ctx, MDVals); } -static MDTuple *emitEntryMD(const EntryProperties &EP, MDTuple *Signatures, - MDNode *MDResources, +static MDTuple *emitEntryMD(Module &M, const EntryProperties &EP, + MDTuple *Signatures, MDNode *MDResources, const uint64_t EntryShaderFlags, - const Triple::EnvironmentType ShaderProfile) { - MDTuple *Properties = - getEntryPropAsMetadata(EP, EntryShaderFlags, ShaderProfile); + const ModuleMetadataInfo &MMDI) { + MDTuple *Properties = getEntryPropAsMetadata(M, EP, EntryShaderFlags, MMDI); return constructEntryMetadata(EP.Entry, Signatures, MDResources, Properties, EP.Entry->getContext()); } @@ -523,10 +565,8 @@ static void translateGlobalMetadata(Module &M, DXILResourceMap &DRM, Twine(Triple::getEnvironmentTypeName(MMDI.ShaderProfile) + "'")); } - - EntryFnMDNodes.emplace_back(emitEntryMD(EntryProp, Signatures, ResourceMD, - EntryShaderFlags, - MMDI.ShaderProfile)); + EntryFnMDNodes.emplace_back(emitEntryMD( + M, EntryProp, Signatures, ResourceMD, EntryShaderFlags, MMDI)); } NamedMDNode *EntryPointsNamedMD = |