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DirectXShaderCompiler
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DirectXShaderCompiler/lib/HLSL/DxilMetadataHelper.cpp

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///////////////////////////////////////////////////////////////////////////////
// //
// DxilMetadataHelper.cpp //
// Copyright (C) Microsoft Corporation. All rights reserved. //
// This file is distributed under the University of Illinois Open Source //
// License. See LICENSE.TXT for details. //
// //
///////////////////////////////////////////////////////////////////////////////
#include "dxc/Support/Global.h"
#include "dxc/HLSL/DxilMetadataHelper.h"
#include "dxc/HLSL/DxilShaderModel.h"
#include "dxc/HLSL/DxilCBuffer.h"
#include "dxc/HLSL/DxilResource.h"
#include "dxc/HLSL/DxilSampler.h"
#include "dxc/HLSL/DxilSignatureElement.h"
#include "dxc/HLSL/DxilSignature.h"
#include "dxc/HLSL/DxilTypeSystem.h"
#include "dxc/HLSL/DxilRootSignature.h"
#include "dxc/HLSL/ComputeViewIdState.h"
#include "dxc/HLSL/DxilFunctionProps.h"
#include "dxc/HLSL/DxilShaderFlags.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/raw_ostream.h"
#include <array>
#include <algorithm>
#include "dxc/Support/WinIncludes.h"
using namespace llvm;
using std::string;
using std::vector;
using std::unique_ptr;
namespace hlsl {
const char DxilMDHelper::kDxilVersionMDName[] = "dx.version";
const char DxilMDHelper::kDxilShaderModelMDName[] = "dx.shaderModel";
const char DxilMDHelper::kDxilEntryPointsMDName[] = "dx.entryPoints";
const char DxilMDHelper::kDxilResourcesMDName[] = "dx.resources";
const char DxilMDHelper::kDxilTypeSystemMDName[] = "dx.typeAnnotations";
const char DxilMDHelper::kDxilTypeSystemHelperVariablePrefix[] = "dx.typevar.";
const char DxilMDHelper::kDxilControlFlowHintMDName[] = "dx.controlflow.hints";
const char DxilMDHelper::kDxilPreciseAttributeMDName[] = "dx.precise";
const char DxilMDHelper::kDxilNonUniformAttributeMDName[] = "dx.nonuniform";
const char DxilMDHelper::kHLDxilResourceAttributeMDName[] = "dx.hl.resource.attribute";
const char DxilMDHelper::kDxilValidatorVersionMDName[] = "dx.valver";
// This named metadata is not valid in final module (should be moved to DxilContainer)
const char DxilMDHelper::kDxilRootSignatureMDName[] = "dx.rootSignature";
const char DxilMDHelper::kDxilViewIdStateMDName[] = "dx.viewIdState";
const char DxilMDHelper::kDxilSourceContentsMDName[] = "dx.source.contents";
const char DxilMDHelper::kDxilSourceDefinesMDName[] = "dx.source.defines";
const char DxilMDHelper::kDxilSourceMainFileNameMDName[] = "dx.source.mainFileName";
const char DxilMDHelper::kDxilSourceArgsMDName[] = "dx.source.args";
static std::array<const char *, 7> DxilMDNames = {
DxilMDHelper::kDxilVersionMDName,
DxilMDHelper::kDxilShaderModelMDName,
DxilMDHelper::kDxilEntryPointsMDName,
DxilMDHelper::kDxilResourcesMDName,
DxilMDHelper::kDxilTypeSystemMDName,
DxilMDHelper::kDxilValidatorVersionMDName,
DxilMDHelper::kDxilViewIdStateMDName,
};
DxilMDHelper::DxilMDHelper(Module *pModule, std::unique_ptr<ExtraPropertyHelper> EPH)
: m_pModule(pModule)
, m_Ctx(pModule->getContext())
, m_pSM(nullptr)
, m_ExtraPropertyHelper(std::move(EPH)) {
}
DxilMDHelper::~DxilMDHelper() {
}
void DxilMDHelper::SetShaderModel(const ShaderModel *pSM) {
m_pSM = pSM;
}
const ShaderModel *DxilMDHelper::GetShaderModel() const {
return m_pSM;
}
//
// DXIL version.
//
void DxilMDHelper::EmitDxilVersion(unsigned Major, unsigned Minor) {
NamedMDNode *pDxilVersionMD = m_pModule->getNamedMetadata(kDxilVersionMDName);
IFTBOOL(pDxilVersionMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pDxilVersionMD = m_pModule->getOrInsertNamedMetadata(kDxilVersionMDName);
Metadata *MDVals[kDxilVersionNumFields];
MDVals[kDxilVersionMajorIdx] = Uint32ToConstMD(Major);
MDVals[kDxilVersionMinorIdx] = Uint32ToConstMD(Minor);
pDxilVersionMD->addOperand(MDNode::get(m_Ctx, MDVals));
}
void DxilMDHelper::LoadDxilVersion(unsigned &Major, unsigned &Minor) {
NamedMDNode *pDxilVersionMD = m_pModule->getNamedMetadata(kDxilVersionMDName);
IFTBOOL(pDxilVersionMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pDxilVersionMD->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
MDNode *pVersionMD = pDxilVersionMD->getOperand(0);
IFTBOOL(pVersionMD->getNumOperands() == kDxilVersionNumFields, DXC_E_INCORRECT_DXIL_METADATA);
Major = ConstMDToUint32(pVersionMD->getOperand(kDxilVersionMajorIdx));
Minor = ConstMDToUint32(pVersionMD->getOperand(kDxilVersionMinorIdx));
}
//
// Validator version.
//
void DxilMDHelper::EmitValidatorVersion(unsigned Major, unsigned Minor) {
NamedMDNode *pDxilValidatorVersionMD = m_pModule->getNamedMetadata(kDxilValidatorVersionMDName);
// Allow re-writing the validator version, since this can be changed at later points.
if (pDxilValidatorVersionMD)
m_pModule->eraseNamedMetadata(pDxilValidatorVersionMD);
pDxilValidatorVersionMD = m_pModule->getOrInsertNamedMetadata(kDxilValidatorVersionMDName);
Metadata *MDVals[kDxilVersionNumFields];
MDVals[kDxilVersionMajorIdx] = Uint32ToConstMD(Major);
MDVals[kDxilVersionMinorIdx] = Uint32ToConstMD(Minor);
pDxilValidatorVersionMD->addOperand(MDNode::get(m_Ctx, MDVals));
}
void DxilMDHelper::LoadValidatorVersion(unsigned &Major, unsigned &Minor) {
NamedMDNode *pDxilValidatorVersionMD = m_pModule->getNamedMetadata(kDxilValidatorVersionMDName);
if (pDxilValidatorVersionMD == nullptr) {
// If no validator version metadata, assume 1.0
Major = 1;
Minor = 0;
return;
}
IFTBOOL(pDxilValidatorVersionMD->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
MDNode *pVersionMD = pDxilValidatorVersionMD->getOperand(0);
IFTBOOL(pVersionMD->getNumOperands() == kDxilVersionNumFields, DXC_E_INCORRECT_DXIL_METADATA);
Major = ConstMDToUint32(pVersionMD->getOperand(kDxilVersionMajorIdx));
Minor = ConstMDToUint32(pVersionMD->getOperand(kDxilVersionMinorIdx));
}
//
// DXIL shader model.
//
void DxilMDHelper::EmitDxilShaderModel(const ShaderModel *pSM) {
NamedMDNode *pShaderModelNamedMD = m_pModule->getNamedMetadata(kDxilShaderModelMDName);
IFTBOOL(pShaderModelNamedMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pShaderModelNamedMD = m_pModule->getOrInsertNamedMetadata(kDxilShaderModelMDName);
Metadata *MDVals[kDxilShaderModelNumFields];
MDVals[kDxilShaderModelTypeIdx ] = MDString::get(m_Ctx, pSM->GetKindName().c_str());
MDVals[kDxilShaderModelMajorIdx] = Uint32ToConstMD(pSM->GetMajor());
MDVals[kDxilShaderModelMinorIdx] = Uint32ToConstMD(pSM->GetMinor());
pShaderModelNamedMD->addOperand(MDNode::get(m_Ctx, MDVals));
}
void DxilMDHelper::LoadDxilShaderModel(const ShaderModel *&pSM) {
NamedMDNode *pShaderModelNamedMD = m_pModule->getNamedMetadata(kDxilShaderModelMDName);
IFTBOOL(pShaderModelNamedMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pShaderModelNamedMD->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
MDNode *pShaderModelMD = pShaderModelNamedMD->getOperand(0);
IFTBOOL(pShaderModelMD->getNumOperands() == kDxilShaderModelNumFields, DXC_E_INCORRECT_DXIL_METADATA);
MDString *pShaderTypeMD = dyn_cast<MDString>(pShaderModelMD->getOperand(kDxilShaderModelTypeIdx));
IFTBOOL(pShaderTypeMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
unsigned Major = ConstMDToUint32(pShaderModelMD->getOperand(kDxilShaderModelMajorIdx));
unsigned Minor = ConstMDToUint32(pShaderModelMD->getOperand(kDxilShaderModelMinorIdx));
string ShaderModelName = pShaderTypeMD->getString();
ShaderModelName += "_" + std::to_string(Major) + "_" + std::to_string(Minor);
pSM = ShaderModel::GetByName(ShaderModelName.c_str());
if (!pSM->IsValidForDxil()) {
char ErrorMsgTxt[40];
StringCchPrintfA(ErrorMsgTxt, _countof(ErrorMsgTxt),
"Unknown shader model '%s'", ShaderModelName.c_str());
string ErrorMsg(ErrorMsgTxt);
throw hlsl::Exception(DXC_E_INCORRECT_DXIL_METADATA, ErrorMsg);
}
}
//
// Entry points.
//
void DxilMDHelper::EmitDxilEntryPoints(vector<MDNode *> &MDEntries) {
DXASSERT(MDEntries.size() == 1 || GetShaderModel()->IsLib(),
"only one entry point is supported for now");
NamedMDNode *pEntryPointsNamedMD = m_pModule->getNamedMetadata(kDxilEntryPointsMDName);
IFTBOOL(pEntryPointsNamedMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pEntryPointsNamedMD = m_pModule->getOrInsertNamedMetadata(kDxilEntryPointsMDName);
for (size_t i = 0; i < MDEntries.size(); i++) {
pEntryPointsNamedMD->addOperand(MDEntries[i]);
}
}
void DxilMDHelper::UpdateDxilEntryPoints(vector<MDNode *> &MDEntries) {
DXASSERT(MDEntries.size() == 1, "only one entry point is supported for now");
NamedMDNode *pEntryPointsNamedMD =
m_pModule->getNamedMetadata(kDxilEntryPointsMDName);
IFTBOOL(pEntryPointsNamedMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
for (size_t i = 0; i < MDEntries.size(); i++) {
pEntryPointsNamedMD->setOperand(i, MDEntries[i]);
}
}
const NamedMDNode *DxilMDHelper::GetDxilEntryPoints() {
NamedMDNode *pEntryPointsNamedMD = m_pModule->getNamedMetadata(kDxilEntryPointsMDName);
IFTBOOL(pEntryPointsNamedMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pEntryPointsNamedMD;
}
MDTuple *DxilMDHelper::EmitDxilEntryPointTuple(Function *pFunc, const string &Name,
MDTuple *pSignatures, MDTuple *pResources,
MDTuple *pProperties) {
Metadata *MDVals[kDxilEntryPointNumFields];
MDVals[kDxilEntryPointFunction ] = pFunc ? ValueAsMetadata::get(pFunc) : nullptr;
MDVals[kDxilEntryPointName ] = MDString::get(m_Ctx, Name.c_str());
MDVals[kDxilEntryPointSignatures] = pSignatures;
MDVals[kDxilEntryPointResources ] = pResources;
MDVals[kDxilEntryPointProperties] = pProperties;
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::GetDxilEntryPoint(const MDNode *MDO, Function *&pFunc, string &Name,
const MDOperand *&pSignatures, const MDOperand *&pResources,
const MDOperand *&pProperties) {
IFTBOOL(MDO != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO);
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilEntryPointNumFields, DXC_E_INCORRECT_DXIL_METADATA);
// Retrieve entry function symbol.
const MDOperand &MDOFunc = pTupleMD->getOperand(kDxilEntryPointFunction);
if (MDOFunc.get() != nullptr) {
ValueAsMetadata *pValueFunc = dyn_cast<ValueAsMetadata>(MDOFunc.get());
IFTBOOL(pValueFunc != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pFunc = dyn_cast<Function>(pValueFunc->getValue());
IFTBOOL(pFunc != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
} else {
pFunc = nullptr; // pass-through CP.
}
// Retrieve entry function name.
const MDOperand &MDOName = pTupleMD->getOperand(kDxilEntryPointName);
IFTBOOL(MDOName.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
MDString *pMDName = dyn_cast<MDString>(MDOName);
IFTBOOL(pMDName != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
Name = pMDName->getString();
pSignatures = &pTupleMD->getOperand(kDxilEntryPointSignatures);
pResources = &pTupleMD->getOperand(kDxilEntryPointResources );
pProperties = &pTupleMD->getOperand(kDxilEntryPointProperties);
}
//
// Signatures.
//
MDTuple *DxilMDHelper::EmitDxilSignatures(const DxilEntrySignature &EntrySig) {
MDTuple *pSignatureTupleMD = nullptr;
const DxilSignature &InputSig = EntrySig.InputSignature;
const DxilSignature &OutputSig = EntrySig.OutputSignature;
const DxilSignature &PCSig = EntrySig.PatchConstantSignature;
if (!InputSig.GetElements().empty() || !OutputSig.GetElements().empty() || !PCSig.GetElements().empty()) {
Metadata *MDVals[kDxilNumSignatureFields];
MDVals[kDxilInputSignature] = EmitSignatureMetadata(InputSig);
MDVals[kDxilOutputSignature] = EmitSignatureMetadata(OutputSig);
MDVals[kDxilPatchConstantSignature] = EmitSignatureMetadata(PCSig);
pSignatureTupleMD = MDNode::get(m_Ctx, MDVals);
}
return pSignatureTupleMD;
}
void DxilMDHelper::EmitRootSignature(RootSignatureHandle &RootSig) {
if (RootSig.IsEmpty()) {
return;
}
RootSig.EnsureSerializedAvailable();
Constant *V = llvm::ConstantDataArray::get(
m_Ctx, llvm::ArrayRef<uint8_t>(RootSig.GetSerializedBytes(),
RootSig.GetSerializedSize()));
NamedMDNode *pRootSignatureNamedMD = m_pModule->getNamedMetadata(kDxilRootSignatureMDName);
IFTBOOL(pRootSignatureNamedMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pRootSignatureNamedMD = m_pModule->getOrInsertNamedMetadata(kDxilRootSignatureMDName);
pRootSignatureNamedMD->addOperand(MDNode::get(m_Ctx, {ConstantAsMetadata::get(V)}));
return ;
}
void DxilMDHelper::LoadDxilSignatures(const MDOperand &MDO, DxilEntrySignature &EntrySig) {
if (MDO.get() == nullptr)
return;
DxilSignature &InputSig = EntrySig.InputSignature;
DxilSignature &OutputSig = EntrySig.OutputSignature;
DxilSignature &PCSig = EntrySig.PatchConstantSignature;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilNumSignatureFields, DXC_E_INCORRECT_DXIL_METADATA);
LoadSignatureMetadata(pTupleMD->getOperand(kDxilInputSignature), InputSig);
LoadSignatureMetadata(pTupleMD->getOperand(kDxilOutputSignature), OutputSig);
LoadSignatureMetadata(pTupleMD->getOperand(kDxilPatchConstantSignature), PCSig);
}
MDTuple *DxilMDHelper::EmitSignatureMetadata(const DxilSignature &Sig) {
auto &Elements = Sig.GetElements();
if (Elements.empty())
return nullptr;
vector<Metadata *> MDVals;
for (size_t i = 0; i < Elements.size(); i++) {
MDVals.emplace_back(EmitSignatureElement(*Elements[i]));
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadSignatureMetadata(const MDOperand &MDO, DxilSignature &Sig) {
if (MDO.get() == nullptr)
return;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i++) {
unique_ptr<DxilSignatureElement> pSE(Sig.CreateElement());
LoadSignatureElement(pTupleMD->getOperand(i), *pSE.get());
Sig.AppendElement(std::move(pSE));
}
}
void DxilMDHelper::LoadRootSignature(RootSignatureHandle &Sig) {
NamedMDNode *pRootSignatureNamedMD = m_pModule->getNamedMetadata(kDxilRootSignatureMDName);
if(!pRootSignatureNamedMD)
return;
IFTBOOL(pRootSignatureNamedMD->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
MDNode *pNode = pRootSignatureNamedMD->getOperand(0);
IFTBOOL(pNode->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
const MDOperand &MDO = pNode->getOperand(0);
const ConstantAsMetadata *pMetaData = dyn_cast<ConstantAsMetadata>(MDO.get());
IFTBOOL(pMetaData != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const ConstantDataArray *pData =
dyn_cast<ConstantDataArray>(pMetaData->getValue());
IFTBOOL(pData != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pData->getElementType() == Type::getInt8Ty(m_Ctx),
DXC_E_INCORRECT_DXIL_METADATA);
Sig.Clear();
Sig.LoadSerialized((uint8_t *)pData->getRawDataValues().begin(),
pData->getRawDataValues().size());
}
static const MDTuple *CastToTupleOrNull(const MDOperand &MDO) {
if (MDO.get() == nullptr)
return nullptr;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pTupleMD;
}
MDTuple *DxilMDHelper::EmitSignatureElement(const DxilSignatureElement &SE) {
Metadata *MDVals[kDxilSignatureElementNumFields];
MDVals[kDxilSignatureElementID ] = Uint32ToConstMD(SE.GetID());
MDVals[kDxilSignatureElementName ] = MDString::get(m_Ctx, SE.GetName());
MDVals[kDxilSignatureElementType ] = Uint8ToConstMD((uint8_t)SE.GetCompType().GetKind());
MDVals[kDxilSignatureElementSystemValue ] = Uint8ToConstMD((uint8_t)SE.GetKind());
MDVals[kDxilSignatureElementIndexVector ] = Uint32VectorToConstMDTuple(SE.GetSemanticIndexVec());
MDVals[kDxilSignatureElementInterpMode ] = Uint8ToConstMD((uint8_t)SE.GetInterpolationMode()->GetKind());
MDVals[kDxilSignatureElementRows ] = Uint32ToConstMD(SE.GetRows());
MDVals[kDxilSignatureElementCols ] = Uint8ToConstMD((uint8_t)SE.GetCols());
MDVals[kDxilSignatureElementStartRow ] = Int32ToConstMD(SE.GetStartRow());
MDVals[kDxilSignatureElementStartCol ] = Int8ToConstMD((int8_t)SE.GetStartCol());
// Name-value list of extended properties.
MDVals[kDxilSignatureElementNameValueList] = nullptr;
vector<Metadata *> MDExtraVals;
m_ExtraPropertyHelper->EmitSignatureElementProperties(SE, MDExtraVals);
if (!MDExtraVals.empty()) {
MDVals[kDxilSignatureElementNameValueList] = MDNode::get(m_Ctx, MDExtraVals);
}
// NOTE: when extra properties for signature elements are needed, extend ExtraPropertyHelper.
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadSignatureElement(const MDOperand &MDO, DxilSignatureElement &SE) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilSignatureElementNumFields, DXC_E_INCORRECT_DXIL_METADATA);
unsigned ID = ConstMDToUint32( pTupleMD->getOperand(kDxilSignatureElementID));
MDString *pName = dyn_cast<MDString>( pTupleMD->getOperand(kDxilSignatureElementName));
CompType CT = CompType(ConstMDToUint8( pTupleMD->getOperand(kDxilSignatureElementType)));
DXIL::SemanticKind SemKind =
(DXIL::SemanticKind)ConstMDToUint8( pTupleMD->getOperand(kDxilSignatureElementSystemValue));
MDTuple *pSemanticIndexVectorMD = dyn_cast<MDTuple>(pTupleMD->getOperand(kDxilSignatureElementIndexVector));
InterpolationMode IM(ConstMDToUint8( pTupleMD->getOperand(kDxilSignatureElementInterpMode)));
unsigned NumRows = ConstMDToUint32( pTupleMD->getOperand(kDxilSignatureElementRows));
uint8_t NumCols = ConstMDToUint8( pTupleMD->getOperand(kDxilSignatureElementCols));
int32_t StartRow = ConstMDToInt32( pTupleMD->getOperand(kDxilSignatureElementStartRow));
int8_t StartCol = ConstMDToInt8( pTupleMD->getOperand(kDxilSignatureElementStartCol));
IFTBOOL(pName != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pSemanticIndexVectorMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
vector<unsigned> SemanticIndexVector;
ConstMDTupleToUint32Vector(pSemanticIndexVectorMD, SemanticIndexVector);
SE.Initialize(pName->getString(), CT, IM, NumRows, NumCols, StartRow, StartCol, ID, SemanticIndexVector);
SE.SetKind(SemKind);
// Name-value list of extended properties.
m_ExtraPropertyHelper->LoadSignatureElementProperties(pTupleMD->getOperand(kDxilSignatureElementNameValueList), SE);
}
//
// Resources.
//
MDTuple *DxilMDHelper::EmitDxilResourceTuple(MDTuple *pSRVs, MDTuple *pUAVs,
MDTuple *pCBuffers, MDTuple *pSamplers) {
DXASSERT(pSRVs != nullptr || pUAVs != nullptr || pCBuffers != nullptr || pSamplers != nullptr, "resource tuple should not be emitted if there are no resources");
Metadata *MDVals[kDxilNumResourceFields];
MDVals[kDxilResourceSRVs ] = pSRVs;
MDVals[kDxilResourceUAVs ] = pUAVs;
MDVals[kDxilResourceCBuffers] = pCBuffers;
MDVals[kDxilResourceSamplers] = pSamplers;
MDTuple *pTupleMD = MDNode::get(m_Ctx, MDVals);
return pTupleMD;
}
void DxilMDHelper::EmitDxilResources(llvm::MDTuple *pDxilResourceTuple) {
NamedMDNode *pResourcesNamedMD = m_pModule->getNamedMetadata(kDxilResourcesMDName);
IFTBOOL(pResourcesNamedMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pResourcesNamedMD = m_pModule->getOrInsertNamedMetadata(kDxilResourcesMDName);
pResourcesNamedMD->addOperand(pDxilResourceTuple);
}
void DxilMDHelper::UpdateDxilResources(llvm::MDTuple *pDxilResourceTuple) {
NamedMDNode *pResourcesNamedMD =
m_pModule->getNamedMetadata(kDxilResourcesMDName);
if (!pResourcesNamedMD) {
pResourcesNamedMD =
m_pModule->getOrInsertNamedMetadata(kDxilResourcesMDName);
}
if (pDxilResourceTuple) {
if (pResourcesNamedMD->getNumOperands() != 0) {
pResourcesNamedMD->setOperand(0, pDxilResourceTuple);
}
else {
pResourcesNamedMD->addOperand(pDxilResourceTuple);
}
} else {
m_pModule->eraseNamedMetadata(pResourcesNamedMD);
}
}
void DxilMDHelper::GetDxilResources(const MDOperand &MDO, const MDTuple *&pSRVs,
const MDTuple *&pUAVs, const MDTuple *&pCBuffers,
const MDTuple *&pSamplers) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilNumResourceFields, DXC_E_INCORRECT_DXIL_METADATA);
pSRVs = CastToTupleOrNull(pTupleMD->getOperand(kDxilResourceSRVs ));
pUAVs = CastToTupleOrNull(pTupleMD->getOperand(kDxilResourceUAVs ));
pCBuffers = CastToTupleOrNull(pTupleMD->getOperand(kDxilResourceCBuffers));
pSamplers = CastToTupleOrNull(pTupleMD->getOperand(kDxilResourceSamplers));
}
void DxilMDHelper::EmitDxilResourceBase(const DxilResourceBase &R, Metadata *ppMDVals[]) {
ppMDVals[kDxilResourceBaseID ] = Uint32ToConstMD(R.GetID());
ppMDVals[kDxilResourceBaseVariable ] = ValueAsMetadata::get(R.GetGlobalSymbol());
ppMDVals[kDxilResourceBaseName ] = MDString::get(m_Ctx, R.GetGlobalName());
ppMDVals[kDxilResourceBaseSpaceID ] = Uint32ToConstMD(R.GetSpaceID());
ppMDVals[kDxilResourceBaseLowerBound] = Uint32ToConstMD(R.GetLowerBound());
ppMDVals[kDxilResourceBaseRangeSize ] = Uint32ToConstMD(R.GetRangeSize());
}
void DxilMDHelper::LoadDxilResourceBase(const MDOperand &MDO, DxilResourceBase &R) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() >= kDxilResourceBaseNumFields, DXC_E_INCORRECT_DXIL_METADATA);
R.SetID(ConstMDToUint32(pTupleMD->getOperand(kDxilResourceBaseID)));
R.SetGlobalSymbol(dyn_cast<Constant>(ValueMDToValue(pTupleMD->getOperand(kDxilResourceBaseVariable))));
R.SetGlobalName(StringMDToString(pTupleMD->getOperand(kDxilResourceBaseName)));
R.SetSpaceID(ConstMDToUint32(pTupleMD->getOperand(kDxilResourceBaseSpaceID)));
R.SetLowerBound(ConstMDToUint32(pTupleMD->getOperand(kDxilResourceBaseLowerBound)));
R.SetRangeSize(ConstMDToUint32(pTupleMD->getOperand(kDxilResourceBaseRangeSize)));
}
MDTuple *DxilMDHelper::EmitDxilSRV(const DxilResource &SRV) {
Metadata *MDVals[kDxilSRVNumFields];
EmitDxilResourceBase(SRV, &MDVals[0]);
// SRV-specific fields.
MDVals[kDxilSRVShape ] = Uint32ToConstMD((unsigned)SRV.GetKind());
MDVals[kDxilSRVSampleCount ] = Uint32ToConstMD(SRV.GetSampleCount());
// Name-value list of extended properties.
MDVals[kDxilSRVNameValueList] = nullptr;
vector<Metadata *> MDExtraVals;
m_ExtraPropertyHelper->EmitSRVProperties(SRV, MDExtraVals);
if (!MDExtraVals.empty()) {
MDVals[kDxilSRVNameValueList] = MDNode::get(m_Ctx, MDExtraVals);
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilSRV(const MDOperand &MDO, DxilResource &SRV) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilSRVNumFields, DXC_E_INCORRECT_DXIL_METADATA);
SRV.SetRW(false);
LoadDxilResourceBase(MDO, SRV);
// SRV-specific fields.
SRV.SetKind((DxilResource::Kind)ConstMDToUint32(pTupleMD->getOperand(kDxilSRVShape)));
SRV.SetSampleCount(ConstMDToUint32(pTupleMD->getOperand(kDxilSRVSampleCount)));
// Name-value list of extended properties.
m_ExtraPropertyHelper->LoadSRVProperties(pTupleMD->getOperand(kDxilSRVNameValueList), SRV);
}
MDTuple *DxilMDHelper::EmitDxilUAV(const DxilResource &UAV) {
Metadata *MDVals[kDxilUAVNumFields];
EmitDxilResourceBase(UAV, &MDVals[0]);
// UAV-specific fields.
MDVals[kDxilUAVShape ] = Uint32ToConstMD((unsigned)UAV.GetKind());
MDVals[kDxilUAVGloballyCoherent ] = BoolToConstMD(UAV.IsGloballyCoherent());
MDVals[kDxilUAVCounter ] = BoolToConstMD(UAV.HasCounter());
MDVals[kDxilUAVRasterizerOrderedView] = BoolToConstMD(UAV.IsROV());
// Name-value list of extended properties.
MDVals[kDxilUAVNameValueList ] = nullptr;
vector<Metadata *> MDExtraVals;
m_ExtraPropertyHelper->EmitUAVProperties(UAV, MDExtraVals);
if (!MDExtraVals.empty()) {
MDVals[kDxilUAVNameValueList] = MDNode::get(m_Ctx, MDExtraVals);
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilUAV(const MDOperand &MDO, DxilResource &UAV) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilUAVNumFields, DXC_E_INCORRECT_DXIL_METADATA);
UAV.SetRW(true);
LoadDxilResourceBase(MDO, UAV);
// UAV-specific fields.
UAV.SetKind((DxilResource::Kind)ConstMDToUint32(pTupleMD->getOperand(kDxilUAVShape)));
UAV.SetGloballyCoherent(ConstMDToBool(pTupleMD->getOperand(kDxilUAVGloballyCoherent)));
UAV.SetHasCounter(ConstMDToBool(pTupleMD->getOperand(kDxilUAVCounter)));
UAV.SetROV(ConstMDToBool(pTupleMD->getOperand(kDxilUAVRasterizerOrderedView)));
// Name-value list of extended properties.
m_ExtraPropertyHelper->LoadUAVProperties(pTupleMD->getOperand(kDxilUAVNameValueList), UAV);
}
MDTuple *DxilMDHelper::EmitDxilCBuffer(const DxilCBuffer &CB) {
Metadata *MDVals[kDxilCBufferNumFields];
EmitDxilResourceBase(CB, &MDVals[0]);
// CBuffer-specific fields.
// CBuffer size in bytes.
MDVals[kDxilCBufferSizeInBytes ] = Uint32ToConstMD(CB.GetSize());
// Name-value list of extended properties.
MDVals[kDxilCBufferNameValueList] = nullptr;
vector<Metadata *> MDExtraVals;
m_ExtraPropertyHelper->EmitCBufferProperties(CB, MDExtraVals);
if (!MDExtraVals.empty()) {
MDVals[kDxilCBufferNameValueList] = MDNode::get(m_Ctx, MDExtraVals);
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilCBuffer(const MDOperand &MDO, DxilCBuffer &CB) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilCBufferNumFields, DXC_E_INCORRECT_DXIL_METADATA);
LoadDxilResourceBase(MDO, CB);
// CBuffer-specific fields.
CB.SetSize(ConstMDToUint32(pTupleMD->getOperand(kDxilCBufferSizeInBytes)));
// Name-value list of extended properties.
m_ExtraPropertyHelper->LoadCBufferProperties(pTupleMD->getOperand(kDxilCBufferNameValueList), CB);
}
void DxilMDHelper::EmitDxilTypeSystem(DxilTypeSystem &TypeSystem, vector<GlobalVariable*> &LLVMUsed) {
auto &TypeMap = TypeSystem.GetStructAnnotationMap();
vector<Metadata *> MDVals;
MDVals.emplace_back(Uint32ToConstMD(kDxilTypeSystemStructTag)); // Tag
unsigned GVIdx = 0;
for (auto it = TypeMap.begin(); it != TypeMap.end(); ++it, GVIdx++) {
StructType *pStructType = const_cast<StructType *>(it->first);
DxilStructAnnotation *pA = it->second.get();
// Don't emit type annotation for empty struct.
if (pA->IsEmptyStruct())
continue;
// Emit struct type field annotations.
Metadata *pMD = EmitDxilStructAnnotation(*pA);
MDVals.push_back(ValueAsMetadata::get(UndefValue::get(pStructType)));
MDVals.push_back(pMD);
}
auto &FuncMap = TypeSystem.GetFunctionAnnotationMap();
vector<Metadata *> MDFuncVals;
MDFuncVals.emplace_back(Uint32ToConstMD(kDxilTypeSystemFunctionTag)); // Tag
for (auto it = FuncMap.begin(); it != FuncMap.end(); ++it) {
DxilFunctionAnnotation *pA = it->second.get();
MDFuncVals.push_back(ValueAsMetadata::get(const_cast<Function*>(pA->GetFunction())));
// Emit function annotations.
Metadata *pMD;
pMD = EmitDxilFunctionAnnotation(*pA);
MDFuncVals.push_back(pMD);
}
NamedMDNode *pDxilTypeAnnotationsMD = m_pModule->getNamedMetadata(kDxilTypeSystemMDName);
if (pDxilTypeAnnotationsMD != nullptr) {
m_pModule->eraseNamedMetadata(pDxilTypeAnnotationsMD);
}
if (MDVals.size() > 1) {
pDxilTypeAnnotationsMD = m_pModule->getOrInsertNamedMetadata(kDxilTypeSystemMDName);
pDxilTypeAnnotationsMD->addOperand(MDNode::get(m_Ctx, MDVals));
}
if (MDFuncVals.size() > 1) {
NamedMDNode *pDxilTypeAnnotationsMD = m_pModule->getNamedMetadata(kDxilTypeSystemMDName);
if (pDxilTypeAnnotationsMD == nullptr)
pDxilTypeAnnotationsMD = m_pModule->getOrInsertNamedMetadata(kDxilTypeSystemMDName);
pDxilTypeAnnotationsMD->addOperand(MDNode::get(m_Ctx, MDFuncVals));
}
}
void DxilMDHelper::LoadDxilTypeSystemNode(const llvm::MDTuple &MDT,
DxilTypeSystem &TypeSystem) {
unsigned Tag = ConstMDToUint32(MDT.getOperand(0));
if (Tag == kDxilTypeSystemStructTag) {
IFTBOOL((MDT.getNumOperands() & 0x1) == 1, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 1; i < MDT.getNumOperands(); i += 2) {
Constant *pGV =
dyn_cast<Constant>(ValueMDToValue(MDT.getOperand(i)));
IFTBOOL(pGV != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
StructType *pGVType =
dyn_cast<StructType>(pGV->getType());
IFTBOOL(pGVType != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
DxilStructAnnotation *pSA = TypeSystem.AddStructAnnotation(pGVType);
LoadDxilStructAnnotation(MDT.getOperand(i + 1), *pSA);
}
} else {
IFTBOOL((MDT.getNumOperands() & 0x1) == 1, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 1; i < MDT.getNumOperands(); i += 2) {
Function *F = dyn_cast<Function>(ValueMDToValue(MDT.getOperand(i)));
DxilFunctionAnnotation *pFA = TypeSystem.AddFunctionAnnotation(F);
LoadDxilFunctionAnnotation(MDT.getOperand(i + 1), *pFA);
}
}
}
void DxilMDHelper::LoadDxilTypeSystem(DxilTypeSystem &TypeSystem) {
NamedMDNode *pDxilTypeAnnotationsMD = m_pModule->getNamedMetadata(kDxilTypeSystemMDName);
if (pDxilTypeAnnotationsMD == nullptr)
return;
IFTBOOL(pDxilTypeAnnotationsMD->getNumOperands() <= 2, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 0; i < pDxilTypeAnnotationsMD->getNumOperands(); i++) {
const MDTuple *pTupleMD = dyn_cast<MDTuple>(pDxilTypeAnnotationsMD->getOperand(i));
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
LoadDxilTypeSystemNode(*pTupleMD, TypeSystem);
}
}
Metadata *DxilMDHelper::EmitDxilStructAnnotation(const DxilStructAnnotation &SA) {
vector<Metadata *> MDVals(SA.GetNumFields() + 1);
MDVals[0] = Uint32ToConstMD(SA.GetCBufferSize());
for (unsigned i = 0; i < SA.GetNumFields(); i++) {
MDVals[i+1] = EmitDxilFieldAnnotation(SA.GetFieldAnnotation(i));
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilStructAnnotation(const MDOperand &MDO, DxilStructAnnotation &SA) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
if (pTupleMD->getNumOperands() == 1) {
SA.MarkEmptyStruct();
}
IFTBOOL(pTupleMD->getNumOperands() == SA.GetNumFields()+1, DXC_E_INCORRECT_DXIL_METADATA);
SA.SetCBufferSize(ConstMDToUint32(pTupleMD->getOperand(0)));
for (unsigned i = 0; i < SA.GetNumFields(); i++) {
const MDOperand &MDO = pTupleMD->getOperand(i+1);
DxilFieldAnnotation &FA = SA.GetFieldAnnotation(i);
LoadDxilFieldAnnotation(MDO, FA);
}
}
Metadata *
DxilMDHelper::EmitDxilFunctionAnnotation(const DxilFunctionAnnotation &FA) {
return EmitDxilParamAnnotations(FA);
}
void DxilMDHelper::LoadDxilFunctionAnnotation(const MDOperand &MDO,
DxilFunctionAnnotation &FA) {
LoadDxilParamAnnotations(MDO, FA);
}
llvm::Metadata *
DxilMDHelper::EmitDxilParamAnnotations(const DxilFunctionAnnotation &FA) {
vector<Metadata *> MDParamAnnotations(FA.GetNumParameters() + 1);
MDParamAnnotations[0] = EmitDxilParamAnnotation(FA.GetRetTypeAnnotation());
for (unsigned i = 0; i < FA.GetNumParameters(); i++) {
MDParamAnnotations[i + 1] =
EmitDxilParamAnnotation(FA.GetParameterAnnotation(i));
}
return MDNode::get(m_Ctx, MDParamAnnotations);
}
void DxilMDHelper::LoadDxilParamAnnotations(const llvm::MDOperand &MDO,
DxilFunctionAnnotation &FA) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD->getNumOperands() == FA.GetNumParameters() + 1,
DXC_E_INCORRECT_DXIL_METADATA);
DxilParameterAnnotation &retTyAnnotation = FA.GetRetTypeAnnotation();
LoadDxilParamAnnotation(pTupleMD->getOperand(0), retTyAnnotation);
for (unsigned i = 0; i < FA.GetNumParameters(); i++) {
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
DxilParameterAnnotation &PA = FA.GetParameterAnnotation(i);
LoadDxilParamAnnotation(MDO, PA);
}
}
Metadata *
DxilMDHelper::EmitDxilParamAnnotation(const DxilParameterAnnotation &PA) {
vector<Metadata *> MDVals(3);
MDVals[0] = Uint32ToConstMD(static_cast<unsigned>(PA.GetParamInputQual()));
MDVals[1] = EmitDxilFieldAnnotation(PA);
MDVals[2] = Uint32VectorToConstMDTuple(PA.GetSemanticIndexVec());
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilParamAnnotation(const MDOperand &MDO,
DxilParameterAnnotation &PA) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == 3, DXC_E_INCORRECT_DXIL_METADATA);
PA.SetParamInputQual(static_cast<DxilParamInputQual>(
ConstMDToUint32(pTupleMD->getOperand(0))));
LoadDxilFieldAnnotation(pTupleMD->getOperand(1), PA);
MDTuple *pSemanticIndexVectorMD = dyn_cast<MDTuple>(pTupleMD->getOperand(2));
vector<unsigned> SemanticIndexVector;
ConstMDTupleToUint32Vector(pSemanticIndexVectorMD, SemanticIndexVector);
PA.SetSemanticIndexVec(SemanticIndexVector);
}
Metadata *DxilMDHelper::EmitDxilFieldAnnotation(const DxilFieldAnnotation &FA) {
vector<Metadata *> MDVals; // Tag-Value list.
if (FA.HasFieldName()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationFieldNameTag));
MDVals.emplace_back(MDString::get(m_Ctx, FA.GetFieldName()));
}
if (FA.IsPrecise()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationPreciseTag)); // Tag
MDVals.emplace_back(BoolToConstMD(true)); // Value
}
if (FA.HasMatrixAnnotation()) {
const DxilMatrixAnnotation &MA = FA.GetMatrixAnnotation();
Metadata *MatrixMD[3];
MatrixMD[0] = Uint32ToConstMD(MA.Rows);
MatrixMD[1] = Uint32ToConstMD(MA.Cols);
MatrixMD[2] = Uint32ToConstMD((unsigned)MA.Orientation);
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationMatrixTag));
MDVals.emplace_back(MDNode::get(m_Ctx, MatrixMD));
}
if (FA.HasCBufferOffset()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationCBufferOffsetTag));
MDVals.emplace_back(Uint32ToConstMD(FA.GetCBufferOffset()));
}
if (FA.HasSemanticString()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationSemanticStringTag));
MDVals.emplace_back(MDString::get(m_Ctx, FA.GetSemanticString()));
}
if (FA.HasInterpolationMode()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationInterpolationModeTag));
MDVals.emplace_back(Uint32ToConstMD((unsigned)FA.GetInterpolationMode().GetKind()));
}
if (FA.HasCompType()) {
MDVals.emplace_back(Uint32ToConstMD(kDxilFieldAnnotationCompTypeTag));
MDVals.emplace_back(Uint32ToConstMD((unsigned)FA.GetCompType().GetKind()));
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilFieldAnnotation(const MDOperand &MDO, DxilFieldAnnotation &FA) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i += 2) {
unsigned Tag = ConstMDToUint32(pTupleMD->getOperand(i));
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
switch (Tag) {
case kDxilFieldAnnotationPreciseTag:
FA.SetPrecise(ConstMDToBool(MDO));
break;
case kDxilFieldAnnotationMatrixTag: {
DxilMatrixAnnotation MA;
const MDTuple *pMATupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pMATupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pMATupleMD->getNumOperands() == 3, DXC_E_INCORRECT_DXIL_METADATA);
MA.Rows = ConstMDToUint32(pMATupleMD->getOperand(0));
MA.Cols = ConstMDToUint32(pMATupleMD->getOperand(1));
MA.Orientation = (MatrixOrientation)ConstMDToUint32(pMATupleMD->getOperand(2));
FA.SetMatrixAnnotation(MA);
} break;
case kDxilFieldAnnotationCBufferOffsetTag:
FA.SetCBufferOffset(ConstMDToUint32(MDO));
break;
case kDxilFieldAnnotationSemanticStringTag:
FA.SetSemanticString(StringMDToString(MDO));
break;
case kDxilFieldAnnotationInterpolationModeTag:
FA.SetInterpolationMode(InterpolationMode((InterpolationMode::Kind)ConstMDToUint32(MDO)));
break;
case kDxilFieldAnnotationFieldNameTag:
FA.SetFieldName(StringMDToString(MDO));
break;
case kDxilFieldAnnotationCompTypeTag:
FA.SetCompType((CompType::Kind)ConstMDToUint32(MDO));
break;
default:
// TODO: I don't think we should be failing unrecognized extended tags.
// Perhaps we can flag this case in the module and fail validation
// if flagged.
// That way, an existing loader will not fail on an additional tag
// and the blob would not be signed if the extra tag was not legal.
IFTBOOL(false, DXC_E_INCORRECT_DXIL_METADATA);
}
}
}
const Function *DxilMDHelper::LoadDxilFunctionProps(const MDTuple *pProps,
hlsl::DxilFunctionProps *props) {
unsigned idx = 0;
const Function *F = dyn_cast<Function>(
dyn_cast<ValueAsMetadata>(pProps->getOperand(idx++))->getValue());
DXIL::ShaderKind shaderKind =
static_cast<DXIL::ShaderKind>(ConstMDToUint32(pProps->getOperand(idx++)));
bool bRayAttributes = false;
props->shaderKind = shaderKind;
switch (shaderKind) {
case DXIL::ShaderKind::Compute:
props->ShaderProps.CS.numThreads[0] =
ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.CS.numThreads[1] =
ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.CS.numThreads[2] =
ConstMDToUint32(pProps->getOperand(idx++));
break;
case DXIL::ShaderKind::Geometry:
props->ShaderProps.GS.inputPrimitive =
(DXIL::InputPrimitive)ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.GS.maxVertexCount =
ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.GS.instanceCount =
ConstMDToUint32(pProps->getOperand(idx++));
for (size_t i = 0;
i < _countof(props->ShaderProps.GS.streamPrimitiveTopologies); ++i)
props->ShaderProps.GS.streamPrimitiveTopologies[i] =
(DXIL::PrimitiveTopology)ConstMDToUint32(pProps->getOperand(idx++));
break;
case DXIL::ShaderKind::Hull:
props->ShaderProps.HS.patchConstantFunc = dyn_cast<Function>(
dyn_cast<ValueAsMetadata>(pProps->getOperand(idx++))->getValue());
props->ShaderProps.HS.domain =
(DXIL::TessellatorDomain)ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.HS.partition =
(DXIL::TessellatorPartitioning)ConstMDToUint32(
pProps->getOperand(idx++));
props->ShaderProps.HS.outputPrimitive =
(DXIL::TessellatorOutputPrimitive)ConstMDToUint32(
pProps->getOperand(idx++));
props->ShaderProps.HS.inputControlPoints =
ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.HS.outputControlPoints =
ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.HS.maxTessFactor =
ConstMDToFloat(pProps->getOperand(idx++));
break;
case DXIL::ShaderKind::Domain:
props->ShaderProps.DS.domain =
(DXIL::TessellatorDomain)ConstMDToUint32(pProps->getOperand(idx++));
props->ShaderProps.DS.inputControlPoints =
ConstMDToUint32(pProps->getOperand(idx++));
break;
case DXIL::ShaderKind::Pixel:
props->ShaderProps.PS.EarlyDepthStencil =
ConstMDToUint32(pProps->getOperand(idx++));
break;
case DXIL::ShaderKind::AnyHit:
case DXIL::ShaderKind::ClosestHit:
bRayAttributes = true;
case DXIL::ShaderKind::Miss:
case DXIL::ShaderKind::Callable:
// payload/params unioned and first:
props->ShaderProps.Ray.payloadSizeInBytes =
ConstMDToUint32(pProps->getOperand(idx++));
if (bRayAttributes)
props->ShaderProps.Ray.attributeSizeInBytes =
ConstMDToUint32(pProps->getOperand(idx++));
break;
default:
break;
}
return F;
}
MDTuple *DxilMDHelper::EmitDxilEntryProperties(uint64_t rawShaderFlag,
const DxilFunctionProps &props,
unsigned autoBindingSpace) {
vector<Metadata *> MDVals;
// DXIL shader flags.
if (props.IsPS()) {
if (props.ShaderProps.PS.EarlyDepthStencil) {
ShaderFlags flags;
flags.SetShaderFlagsRaw(rawShaderFlag);
flags.SetForceEarlyDepthStencil(true);
rawShaderFlag = flags.GetShaderFlagsRaw();
}
}
if (rawShaderFlag != 0) {
MDVals.emplace_back(Uint32ToConstMD(kDxilShaderFlagsTag));
MDVals.emplace_back(Uint64ToConstMD(rawShaderFlag));
}
// Add shader kind for lib entrys.
if (m_pSM->IsLib() && props.shaderKind != DXIL::ShaderKind::Library) {
MDVals.emplace_back(Uint32ToConstMD(kDxilShaderKindTag));
MDVals.emplace_back(
Uint32ToConstMD(static_cast<unsigned>(props.shaderKind)));
}
switch (props.shaderKind) {
// Compute shader.
case DXIL::ShaderKind::Compute: {
auto &CS = props.ShaderProps.CS;
MDVals.emplace_back(Uint32ToConstMD(DxilMDHelper::kDxilNumThreadsTag));
vector<Metadata *> NumThreadVals;
NumThreadVals.emplace_back(Uint32ToConstMD(CS.numThreads[0]));
NumThreadVals.emplace_back(Uint32ToConstMD(CS.numThreads[1]));
NumThreadVals.emplace_back(Uint32ToConstMD(CS.numThreads[2]));
MDVals.emplace_back(MDNode::get(m_Ctx, NumThreadVals));
} break;
// Geometry shader.
case DXIL::ShaderKind::Geometry: {
MDVals.emplace_back(Uint32ToConstMD(DxilMDHelper::kDxilGSStateTag));
DXIL::PrimitiveTopology topo = DXIL::PrimitiveTopology::Undefined;
unsigned activeStreamMask = 0;
for (size_t i = 0;
i < _countof(props.ShaderProps.GS.streamPrimitiveTopologies); ++i) {
if (props.ShaderProps.GS.streamPrimitiveTopologies[i] !=
DXIL::PrimitiveTopology::Undefined) {
activeStreamMask |= 1 << i;
DXASSERT_NOMSG(topo == DXIL::PrimitiveTopology::Undefined ||
topo ==
props.ShaderProps.GS.streamPrimitiveTopologies[i]);
topo = props.ShaderProps.GS.streamPrimitiveTopologies[i];
}
}
MDTuple *pMDTuple =
EmitDxilGSState(props.ShaderProps.GS.inputPrimitive,
props.ShaderProps.GS.maxVertexCount, activeStreamMask,
topo, props.ShaderProps.GS.instanceCount);
MDVals.emplace_back(pMDTuple);
} break;
// Domain shader.
case DXIL::ShaderKind::Domain: {
auto &DS = props.ShaderProps.DS;
MDVals.emplace_back(Uint32ToConstMD(DxilMDHelper::kDxilDSStateTag));
MDTuple *pMDTuple = EmitDxilDSState(DS.domain, DS.inputControlPoints);
MDVals.emplace_back(pMDTuple);
} break;
// Hull shader.
case DXIL::ShaderKind::Hull: {
auto &HS = props.ShaderProps.HS;
MDVals.emplace_back(Uint32ToConstMD(DxilMDHelper::kDxilHSStateTag));
MDTuple *pMDTuple = EmitDxilHSState(
HS.patchConstantFunc, HS.inputControlPoints, HS.outputControlPoints,
HS.domain, HS.partition, HS.outputPrimitive, HS.maxTessFactor);
MDVals.emplace_back(pMDTuple);
} break;
// Raytracing.
case DXIL::ShaderKind::AnyHit:
case DXIL::ShaderKind::ClosestHit: {
MDVals.emplace_back(Uint32ToConstMD(kDxilRayPayloadSizeTag));
MDVals.emplace_back(
Uint32ToConstMD(props.ShaderProps.Ray.payloadSizeInBytes));
MDVals.emplace_back(Uint32ToConstMD(kDxilRayAttribSizeTag));
MDVals.emplace_back(
Uint32ToConstMD(props.ShaderProps.Ray.attributeSizeInBytes));
} break;
case DXIL::ShaderKind::Miss:
case DXIL::ShaderKind::Callable: {
MDVals.emplace_back(Uint32ToConstMD(kDxilRayPayloadSizeTag));
MDVals.emplace_back(
Uint32ToConstMD(props.ShaderProps.Ray.payloadSizeInBytes));
} break;
default:
break;
}
if (autoBindingSpace != UINT_MAX && m_pSM->IsSMAtLeast(6, 3)) {
MDVals.emplace_back(Uint32ToConstMD(kDxilAutoBindingSpaceTag));
MDVals.emplace_back(
MDNode::get(m_Ctx, {Uint32ToConstMD(autoBindingSpace)}));
}
if (!MDVals.empty())
return MDNode::get(m_Ctx, MDVals);
else
return nullptr;
}
void DxilMDHelper::LoadDxilEntryProperties(const MDOperand &MDO,
uint64_t &rawShaderFlag,
DxilFunctionProps &props,
uint32_t &autoBindingSpace) {
if (MDO.get() == nullptr)
return;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0,
DXC_E_INCORRECT_DXIL_METADATA);
bool bEarlyDepth = false;
if (!m_pSM->IsLib()) {
props.shaderKind = m_pSM->GetKind();
} else {
props.shaderKind = DXIL::ShaderKind::Library;
}
for (unsigned iNode = 0; iNode < pTupleMD->getNumOperands(); iNode += 2) {
unsigned Tag = DxilMDHelper::ConstMDToUint32(pTupleMD->getOperand(iNode));
const MDOperand &MDO = pTupleMD->getOperand(iNode + 1);
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
switch (Tag) {
case DxilMDHelper::kDxilShaderFlagsTag: {
rawShaderFlag = ConstMDToUint64(MDO);
ShaderFlags flags;
flags.SetShaderFlagsRaw(rawShaderFlag);
bEarlyDepth = flags.GetForceEarlyDepthStencil();
} break;
case DxilMDHelper::kDxilNumThreadsTag: {
DXASSERT(props.IsCS(), "else invalid shader kind");
auto &CS = props.ShaderProps.CS;
MDNode *pNode = cast<MDNode>(MDO.get());
CS.numThreads[0] = ConstMDToUint32(pNode->getOperand(0));
CS.numThreads[1] = ConstMDToUint32(pNode->getOperand(1));
CS.numThreads[2] = ConstMDToUint32(pNode->getOperand(2));
} break;
case DxilMDHelper::kDxilGSStateTag: {
DXASSERT(props.IsGS(), "else invalid shader kind");
auto &GS = props.ShaderProps.GS;
DXIL::PrimitiveTopology topo = DXIL::PrimitiveTopology::Undefined;
unsigned activeStreamMask;
LoadDxilGSState(MDO, GS.inputPrimitive, GS.maxVertexCount,
activeStreamMask, topo, GS.instanceCount);
if (topo != DXIL::PrimitiveTopology::Undefined) {
for (size_t i = 0; i < _countof(GS.streamPrimitiveTopologies); ++i) {
unsigned mask = 1 << i;
if (activeStreamMask & mask) {
GS.streamPrimitiveTopologies[i] = topo;
} else {
GS.streamPrimitiveTopologies[i] =
DXIL::PrimitiveTopology::Undefined;
}
}
}
} break;
case DxilMDHelper::kDxilDSStateTag: {
DXASSERT(props.IsDS(), "else invalid shader kind");
auto &DS = props.ShaderProps.DS;
LoadDxilDSState(MDO, DS.domain, DS.inputControlPoints);
} break;
case DxilMDHelper::kDxilHSStateTag: {
DXASSERT(props.IsHS(), "else invalid shader kind");
auto &HS = props.ShaderProps.HS;
LoadDxilHSState(MDO, HS.patchConstantFunc, HS.inputControlPoints,
HS.outputControlPoints, HS.domain, HS.partition,
HS.outputPrimitive, HS.maxTessFactor);
} break;
case DxilMDHelper::kDxilAutoBindingSpaceTag: {
MDNode *pNode = cast<MDNode>(MDO.get());
autoBindingSpace = ConstMDToUint32(pNode->getOperand(0));
break;
}
case DxilMDHelper::kDxilRayPayloadSizeTag: {
DXASSERT(props.IsAnyHit() || props.IsClosestHit() || props.IsMiss() ||
props.IsCallable(),
"else invalid shader kind");
props.ShaderProps.Ray.payloadSizeInBytes =
ConstMDToUint32(MDO);
} break;
case DxilMDHelper::kDxilRayAttribSizeTag: {
DXASSERT(props.IsAnyHit() || props.IsClosestHit(),
"else invalid shader kind");
props.ShaderProps.Ray.attributeSizeInBytes =
ConstMDToUint32(MDO);
} break;
case DxilMDHelper::kDxilShaderKindTag: {
DXIL::ShaderKind kind =
static_cast<DXIL::ShaderKind>(ConstMDToUint32(MDO));
DXASSERT(props.shaderKind == DXIL::ShaderKind::Library,
"else invalid shader kind");
props.shaderKind = kind;
} break;
default:
DXASSERT(false, "Unknown extended shader properties tag");
break;
}
}
if (bEarlyDepth) {
DXASSERT(props.IsPS(), "else invalid shader kind");
props.ShaderProps.PS.EarlyDepthStencil = true;
}
}
MDTuple *
DxilMDHelper::EmitDxilFunctionProps(const hlsl::DxilFunctionProps *props,
const Function *F) {
bool bRayAttributes = false;
Metadata *MDVals[30];
std::fill(MDVals, MDVals + _countof(MDVals), nullptr);
unsigned valIdx = 0;
MDVals[valIdx++] = ValueAsMetadata::get(const_cast<Function*>(F));
MDVals[valIdx++] = Uint32ToConstMD(static_cast<unsigned>(props->shaderKind));
switch (props->shaderKind) {
case DXIL::ShaderKind::Compute:
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.CS.numThreads[0]);
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.CS.numThreads[1]);
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.CS.numThreads[2]);
break;
case DXIL::ShaderKind::Geometry:
MDVals[valIdx++] =
Uint8ToConstMD((uint8_t)props->ShaderProps.GS.inputPrimitive);
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.GS.maxVertexCount);
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.GS.instanceCount);
for (size_t i = 0;
i < _countof(props->ShaderProps.GS.streamPrimitiveTopologies); ++i)
MDVals[valIdx++] = Uint8ToConstMD(
(uint8_t)props->ShaderProps.GS.streamPrimitiveTopologies[i]);
break;
case DXIL::ShaderKind::Hull:
MDVals[valIdx++] =
ValueAsMetadata::get(props->ShaderProps.HS.patchConstantFunc);
MDVals[valIdx++] = Uint8ToConstMD((uint8_t)props->ShaderProps.HS.domain);
MDVals[valIdx++] = Uint8ToConstMD((uint8_t)props->ShaderProps.HS.partition);
MDVals[valIdx++] =
Uint8ToConstMD((uint8_t)props->ShaderProps.HS.outputPrimitive);
MDVals[valIdx++] =
Uint32ToConstMD(props->ShaderProps.HS.inputControlPoints);
MDVals[valIdx++] =
Uint32ToConstMD(props->ShaderProps.HS.outputControlPoints);
MDVals[valIdx++] = FloatToConstMD(props->ShaderProps.HS.maxTessFactor);
break;
case DXIL::ShaderKind::Domain:
MDVals[valIdx++] = Uint8ToConstMD((uint8_t)props->ShaderProps.DS.domain);
MDVals[valIdx++] =
Uint32ToConstMD(props->ShaderProps.DS.inputControlPoints);
break;
case DXIL::ShaderKind::Pixel:
MDVals[valIdx++] = BoolToConstMD(props->ShaderProps.PS.EarlyDepthStencil);
break;
case DXIL::ShaderKind::AnyHit:
case DXIL::ShaderKind::ClosestHit:
bRayAttributes = true;
case DXIL::ShaderKind::Miss:
case DXIL::ShaderKind::Callable:
// payload/params unioned and first:
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.Ray.payloadSizeInBytes);
if (bRayAttributes)
MDVals[valIdx++] = Uint32ToConstMD(props->ShaderProps.Ray.attributeSizeInBytes);
break;
default:
break;
}
return MDTuple::get(m_Ctx, ArrayRef<llvm::Metadata *>(MDVals, valIdx));
}
void DxilMDHelper::EmitDxilViewIdState(DxilViewIdState &ViewIdState) {
const vector<unsigned> &Data = ViewIdState.GetSerialized();
// If all UINTs are zero, do not emit ViewIdState.
if (!std::any_of(Data.begin(), Data.end(), [](unsigned e){return e!=0;}))
return;
Constant *V = ConstantDataArray::get(m_Ctx, ArrayRef<uint32_t>(Data));
NamedMDNode *pViewIdNamedMD = m_pModule->getNamedMetadata(kDxilViewIdStateMDName);
IFTBOOL(pViewIdNamedMD == nullptr, DXC_E_INCORRECT_DXIL_METADATA);
pViewIdNamedMD = m_pModule->getOrInsertNamedMetadata(kDxilViewIdStateMDName);
pViewIdNamedMD->addOperand(MDNode::get(m_Ctx, {ConstantAsMetadata::get(V)}));
}
void DxilMDHelper::LoadDxilViewIdState(DxilViewIdState &ViewIdState) {
NamedMDNode *pViewIdStateNamedMD = m_pModule->getNamedMetadata(kDxilViewIdStateMDName);
if(!pViewIdStateNamedMD)
return;
IFTBOOL(pViewIdStateNamedMD->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
MDNode *pNode = pViewIdStateNamedMD->getOperand(0);
IFTBOOL(pNode->getNumOperands() == 1, DXC_E_INCORRECT_DXIL_METADATA);
const MDOperand &MDO = pNode->getOperand(0);
const ConstantAsMetadata *pMetaData = dyn_cast<ConstantAsMetadata>(MDO.get());
IFTBOOL(pMetaData != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
if (isa<ConstantAggregateZero>(pMetaData->getValue()))
return;
const ConstantDataArray *pData = dyn_cast<ConstantDataArray>(pMetaData->getValue());
IFTBOOL(pData != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pData->getElementType() == Type::getInt32Ty(m_Ctx), DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pData->getRawDataValues().size() < UINT_MAX &&
(pData->getRawDataValues().size() & 3) == 0, DXC_E_INCORRECT_DXIL_METADATA);
ViewIdState.Deserialize((unsigned *)pData->getRawDataValues().begin(),
(unsigned)pData->getRawDataValues().size() / 4);
}
MDNode *DxilMDHelper::EmitControlFlowHints(llvm::LLVMContext &Ctx, std::vector<DXIL::ControlFlowHint> &hints) {
SmallVector<Metadata *, 4> Args;
// Reserve operand 0 for self reference.
auto TempNode = MDNode::getTemporary(Ctx, None);
Args.emplace_back(TempNode.get());
Args.emplace_back(MDString::get(Ctx, kDxilControlFlowHintMDName));
for (DXIL::ControlFlowHint &hint : hints)
Args.emplace_back(Uint32ToConstMD(static_cast<unsigned>(hint), Ctx));
MDNode *hintsNode = MDNode::get(Ctx, Args);
// Set the first operand to itself.
hintsNode->replaceOperandWith(0, hintsNode);
return hintsNode;
}
MDTuple *DxilMDHelper::EmitDxilSampler(const DxilSampler &S) {
Metadata *MDVals[kDxilSamplerNumFields];
EmitDxilResourceBase(S, &MDVals[0]);
// Sampler-specific fields.
MDVals[kDxilSamplerType ] = Uint32ToConstMD((unsigned)S.GetSamplerKind());
// Name-value list of extended properties.
MDVals[kDxilSamplerNameValueList] = nullptr;
vector<Metadata *> MDExtraVals;
m_ExtraPropertyHelper->EmitSamplerProperties(S, MDExtraVals);
if (!MDExtraVals.empty()) {
MDVals[kDxilSamplerNameValueList] = MDNode::get(m_Ctx, MDExtraVals);
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilSampler(const MDOperand &MDO, DxilSampler &S) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilSamplerNumFields, DXC_E_INCORRECT_DXIL_METADATA);
LoadDxilResourceBase(MDO, S);
// Sampler-specific fields.
S.SetSamplerKind((DxilSampler::SamplerKind)ConstMDToUint32(pTupleMD->getOperand(kDxilSamplerType)));
// Name-value list of extended properties.
m_ExtraPropertyHelper->LoadSamplerProperties(pTupleMD->getOperand(kDxilSamplerNameValueList), S);
}
const MDOperand &DxilMDHelper::GetResourceClass(llvm::MDNode *MD,
DXIL::ResourceClass &RC) {
IFTBOOL(MD->getNumOperands() >=
DxilMDHelper::kHLDxilResourceAttributeNumFields,
DXC_E_INCORRECT_DXIL_METADATA);
RC = static_cast<DxilResource::Class>(ConstMDToUint32(
MD->getOperand(DxilMDHelper::kHLDxilResourceAttributeClass)));
return MD->getOperand(DxilMDHelper::kHLDxilResourceAttributeMeta);
}
void DxilMDHelper::LoadDxilResourceBaseFromMDNode(llvm::MDNode *MD,
DxilResourceBase &R) {
DxilResource::Class RC = DxilResource::Class::Invalid;
const MDOperand &Meta = GetResourceClass(MD, RC);
switch (RC) {
case DxilResource::Class::CBuffer: {
DxilCBuffer CB;
LoadDxilCBuffer(Meta, CB);
R = CB;
} break;
case DxilResource::Class::Sampler: {
DxilSampler S;
LoadDxilSampler(Meta, S);
R = S;
} break;
case DxilResource::Class::SRV: {
DxilResource Res;
LoadDxilSRV(Meta, Res);
R = Res;
} break;
case DxilResource::Class::UAV: {
DxilResource Res;
LoadDxilUAV(Meta, Res);
R = Res;
} break;
default:
DXASSERT(0, "Invalid metadata");
}
}
void DxilMDHelper::LoadDxilResourceFromMDNode(llvm::MDNode *MD,
DxilResource &R) {
DxilResource::Class RC = DxilResource::Class::Invalid;
const MDOperand &Meta = GetResourceClass(MD, RC);
switch (RC) {
case DxilResource::Class::SRV: {
LoadDxilSRV(Meta, R);
} break;
case DxilResource::Class::UAV: {
LoadDxilUAV(Meta, R);
} break;
default:
DXASSERT(0, "Invalid metadata");
}
}
void DxilMDHelper::LoadDxilSamplerFromMDNode(llvm::MDNode *MD, DxilSampler &S) {
DxilResource::Class RC = DxilResource::Class::Invalid;
const MDOperand &Meta = GetResourceClass(MD, RC);
switch (RC) {
case DxilResource::Class::Sampler: {
LoadDxilSampler(Meta, S);
} break;
default:
DXASSERT(0, "Invalid metadata");
}
}
//
// DxilExtraPropertyHelper shader-specific methods.
//
MDTuple *DxilMDHelper::EmitDxilGSState(DXIL::InputPrimitive Primitive,
unsigned MaxVertexCount,
unsigned ActiveStreamMask,
DXIL::PrimitiveTopology StreamPrimitiveTopology,
unsigned GSInstanceCount) {
Metadata *MDVals[kDxilGSStateNumFields];
MDVals[kDxilGSStateInputPrimitive ] = Uint32ToConstMD((unsigned)Primitive);
MDVals[kDxilGSStateMaxVertexCount ] = Uint32ToConstMD(MaxVertexCount);
MDVals[kDxilGSStateActiveStreamMask ] = Uint32ToConstMD(ActiveStreamMask);
MDVals[kDxilGSStateOutputStreamTopology] = Uint32ToConstMD((unsigned)StreamPrimitiveTopology);
MDVals[kDxilGSStateGSInstanceCount ] = Uint32ToConstMD(GSInstanceCount);
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilGSState(const MDOperand &MDO,
DXIL::InputPrimitive &Primitive,
unsigned &MaxVertexCount,
unsigned &ActiveStreamMask,
DXIL::PrimitiveTopology &StreamPrimitiveTopology,
unsigned &GSInstanceCount) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilGSStateNumFields, DXC_E_INCORRECT_DXIL_METADATA);
Primitive = (DXIL::InputPrimitive)ConstMDToUint32(pTupleMD->getOperand(kDxilGSStateInputPrimitive));
MaxVertexCount = ConstMDToUint32(pTupleMD->getOperand(kDxilGSStateMaxVertexCount));
ActiveStreamMask = ConstMDToUint32(pTupleMD->getOperand(kDxilGSStateActiveStreamMask));
StreamPrimitiveTopology = (DXIL::PrimitiveTopology)ConstMDToUint32(pTupleMD->getOperand(kDxilGSStateOutputStreamTopology));
GSInstanceCount = ConstMDToUint32(pTupleMD->getOperand(kDxilGSStateGSInstanceCount));
}
MDTuple *DxilMDHelper::EmitDxilDSState(DXIL::TessellatorDomain Domain, unsigned InputControlPointCount) {
Metadata *MDVals[kDxilDSStateNumFields];
MDVals[kDxilDSStateTessellatorDomain ] = Uint32ToConstMD((unsigned)Domain);
MDVals[kDxilDSStateInputControlPointCount] = Uint32ToConstMD(InputControlPointCount);
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilDSState(const MDOperand &MDO,
DXIL::TessellatorDomain &Domain,
unsigned &InputControlPointCount) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilDSStateNumFields, DXC_E_INCORRECT_DXIL_METADATA);
Domain = (DXIL::TessellatorDomain)ConstMDToUint32(pTupleMD->getOperand(kDxilDSStateTessellatorDomain));
InputControlPointCount = ConstMDToUint32(pTupleMD->getOperand(kDxilDSStateInputControlPointCount));
}
MDTuple *DxilMDHelper::EmitDxilHSState(Function *pPatchConstantFunction,
unsigned InputControlPointCount,
unsigned OutputControlPointCount,
DXIL::TessellatorDomain TessDomain,
DXIL::TessellatorPartitioning TessPartitioning,
DXIL::TessellatorOutputPrimitive TessOutputPrimitive,
float MaxTessFactor) {
Metadata *MDVals[kDxilHSStateNumFields];
MDVals[kDxilHSStatePatchConstantFunction ] = ValueAsMetadata::get(pPatchConstantFunction);
MDVals[kDxilHSStateInputControlPointCount ] = Uint32ToConstMD(InputControlPointCount);
MDVals[kDxilHSStateOutputControlPointCount ] = Uint32ToConstMD(OutputControlPointCount);
MDVals[kDxilHSStateTessellatorDomain ] = Uint32ToConstMD((unsigned)TessDomain);
MDVals[kDxilHSStateTessellatorPartitioning ] = Uint32ToConstMD((unsigned)TessPartitioning);
MDVals[kDxilHSStateTessellatorOutputPrimitive] = Uint32ToConstMD((unsigned)TessOutputPrimitive);
MDVals[kDxilHSStateMaxTessellationFactor ] = FloatToConstMD(MaxTessFactor);
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::LoadDxilHSState(const MDOperand &MDO,
Function *&pPatchConstantFunction,
unsigned &InputControlPointCount,
unsigned &OutputControlPointCount,
DXIL::TessellatorDomain &TessDomain,
DXIL::TessellatorPartitioning &TessPartitioning,
DXIL::TessellatorOutputPrimitive &TessOutputPrimitive,
float &MaxTessFactor) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL(pTupleMD->getNumOperands() == kDxilHSStateNumFields, DXC_E_INCORRECT_DXIL_METADATA);
pPatchConstantFunction = dyn_cast<Function>(ValueMDToValue(pTupleMD->getOperand(kDxilHSStatePatchConstantFunction)));
InputControlPointCount = ConstMDToUint32(pTupleMD->getOperand(kDxilHSStateInputControlPointCount));
OutputControlPointCount = ConstMDToUint32(pTupleMD->getOperand(kDxilHSStateOutputControlPointCount));
TessDomain = (DXIL::TessellatorDomain)ConstMDToUint32(pTupleMD->getOperand(kDxilHSStateTessellatorDomain));
TessPartitioning = (DXIL::TessellatorPartitioning)ConstMDToUint32(pTupleMD->getOperand(kDxilHSStateTessellatorPartitioning));
TessOutputPrimitive = (DXIL::TessellatorOutputPrimitive)ConstMDToUint32(pTupleMD->getOperand(kDxilHSStateTessellatorOutputPrimitive));
MaxTessFactor = ConstMDToFloat(pTupleMD->getOperand(kDxilHSStateMaxTessellationFactor));
}
//
// DxilExtraPropertyHelper methods.
//
DxilMDHelper::ExtraPropertyHelper::ExtraPropertyHelper(Module *pModule)
: m_pModule(pModule)
, m_Ctx(pModule->getContext()) {
}
DxilExtraPropertyHelper::DxilExtraPropertyHelper(Module *pModule)
: ExtraPropertyHelper(pModule) {
}
void DxilExtraPropertyHelper::EmitSRVProperties(const DxilResource &SRV, std::vector<Metadata *> &MDVals) {
// Element type for typed resource.
if (!SRV.IsStructuredBuffer() && !SRV.IsRawBuffer()) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilTypedBufferElementTypeTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD((unsigned)SRV.GetCompType().GetKind(), m_Ctx));
}
// Element stride for structured buffer.
if (SRV.IsStructuredBuffer()) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilStructuredBufferElementStrideTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(SRV.GetElementStride(), m_Ctx));
}
}
void DxilExtraPropertyHelper::LoadSRVProperties(const MDOperand &MDO, DxilResource &SRV) {
SRV.SetElementStride(SRV.IsRawBuffer() ? 1 : 4);
SRV.SetCompType(CompType());
if (MDO.get() == nullptr) {
return;
}
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i += 2) {
unsigned Tag = DxilMDHelper::ConstMDToUint32(pTupleMD->getOperand(i));
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
switch (Tag) {
case DxilMDHelper::kDxilTypedBufferElementTypeTag:
DXASSERT_NOMSG(!SRV.IsStructuredBuffer() && !SRV.IsRawBuffer());
SRV.SetCompType(CompType(DxilMDHelper::ConstMDToUint32(MDO)));
break;
case DxilMDHelper::kDxilStructuredBufferElementStrideTag:
DXASSERT_NOMSG(SRV.IsStructuredBuffer());
SRV.SetElementStride(DxilMDHelper::ConstMDToUint32(MDO));
break;
default:
DXASSERT(false, "Unknown resource record tag");
}
}
}
void DxilExtraPropertyHelper::EmitUAVProperties(const DxilResource &UAV, std::vector<Metadata *> &MDVals) {
// Element type for typed RW resource.
if (!UAV.IsStructuredBuffer() && !UAV.IsRawBuffer()) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilTypedBufferElementTypeTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD((unsigned)UAV.GetCompType().GetKind(), m_Ctx));
}
// Element stride for structured RW buffer.
if (UAV.IsStructuredBuffer()) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilStructuredBufferElementStrideTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(UAV.GetElementStride(), m_Ctx));
}
}
void DxilExtraPropertyHelper::LoadUAVProperties(const MDOperand &MDO, DxilResource &UAV) {
UAV.SetElementStride(UAV.IsRawBuffer() ? 1 : 4);
UAV.SetCompType(CompType());
if (MDO.get() == nullptr) {
return;
}
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0, DXC_E_INCORRECT_DXIL_METADATA);
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i += 2) {
unsigned Tag = DxilMDHelper::ConstMDToUint32(pTupleMD->getOperand(i));
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
switch (Tag) {
case DxilMDHelper::kDxilTypedBufferElementTypeTag:
DXASSERT_NOMSG(!UAV.IsStructuredBuffer() && !UAV.IsRawBuffer());
UAV.SetCompType(CompType(DxilMDHelper::ConstMDToUint32(MDO)));
break;
case DxilMDHelper::kDxilStructuredBufferElementStrideTag:
DXASSERT_NOMSG(UAV.IsStructuredBuffer());
UAV.SetElementStride(DxilMDHelper::ConstMDToUint32(MDO));
break;
default:
DXASSERT(false, "Unknown resource record tag");
}
}
}
void DxilExtraPropertyHelper::EmitCBufferProperties(const DxilCBuffer &CB, vector<Metadata *> &MDVals) {
// Emit property to preserve tbuffer kind
if (CB.GetKind() == DXIL::ResourceKind::TBuffer) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kHLCBufferIsTBufferTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::BoolToConstMD(true, m_Ctx));
}
}
void DxilExtraPropertyHelper::LoadCBufferProperties(const MDOperand &MDO, DxilCBuffer &CB) {
if (MDO.get() == nullptr)
return;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0, DXC_E_INCORRECT_DXIL_METADATA);
// Override kind for tbuffer that has not yet been converted to SRV.
CB.SetKind(DXIL::ResourceKind::CBuffer);
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i += 2) {
unsigned Tag = DxilMDHelper::ConstMDToUint32(pTupleMD->getOperand(i));
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
switch (Tag) {
case DxilMDHelper::kHLCBufferIsTBufferTag:
if (DxilMDHelper::ConstMDToBool(MDO)) {
CB.SetKind(DXIL::ResourceKind::TBuffer);
}
break;
default:
DXASSERT(false, "Unknown cbuffer tag");
}
}
}
void DxilExtraPropertyHelper::EmitSamplerProperties(const DxilSampler &S, std::vector<Metadata *> &MDVals) {
// Nothing yet.
}
void DxilExtraPropertyHelper::LoadSamplerProperties(const MDOperand &MDO, DxilSampler &S) {
// Nothing yet.
}
void DxilExtraPropertyHelper::EmitSignatureElementProperties(const DxilSignatureElement &SE,
vector<Metadata *> &MDVals) {
// Output stream, if non-zero.
if (SE.GetOutputStream() != 0) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilSignatureElementOutputStreamTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(SE.GetOutputStream(), m_Ctx));
}
// Mask of Dynamically indexed components.
if (SE.GetDynIdxCompMask() != 0) {
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(DxilMDHelper::kDxilSignatureElementDynIdxCompMaskTag, m_Ctx));
MDVals.emplace_back(DxilMDHelper::Uint32ToConstMD(SE.GetDynIdxCompMask(), m_Ctx));
}
}
void DxilExtraPropertyHelper::LoadSignatureElementProperties(const MDOperand &MDO, DxilSignatureElement &SE) {
if (MDO.get() == nullptr)
return;
const MDTuple *pTupleMD = dyn_cast<MDTuple>(MDO.get());
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
IFTBOOL((pTupleMD->getNumOperands() & 0x1) == 0, DXC_E_INCORRECT_DXIL_METADATA);
// Stream.
for (unsigned i = 0; i < pTupleMD->getNumOperands(); i += 2) {
unsigned Tag = DxilMDHelper::ConstMDToUint32(pTupleMD->getOperand(i));
const MDOperand &MDO = pTupleMD->getOperand(i + 1);
switch (Tag) {
case DxilMDHelper::kDxilSignatureElementOutputStreamTag:
SE.SetOutputStream(DxilMDHelper::ConstMDToUint32(MDO));
break;
case DxilMDHelper::kHLSignatureElementGlobalSymbolTag:
break;
case DxilMDHelper::kDxilSignatureElementDynIdxCompMaskTag:
SE.SetDynIdxCompMask(DxilMDHelper::ConstMDToUint32(MDO));
break;
default:
DXASSERT(false, "Unknown signature element tag");
}
}
}
//
// Utilities.
//
bool DxilMDHelper::IsKnownNamedMetaData(const llvm::NamedMDNode &Node) {
StringRef name = Node.getName();
for (unsigned i = 0; i < DxilMDNames.size(); i++) {
if (name == DxilMDNames[i]) {
return true;
}
}
return false;
}
void DxilMDHelper::combineDxilMetadata(llvm::Instruction *K,
const llvm::Instruction *J) {
if (IsMarkedNonUniform(J))
MarkNonUniform(K);
if (IsMarkedPrecise(J))
MarkPrecise(K);
}
ConstantAsMetadata *DxilMDHelper::Int32ToConstMD(int32_t v, LLVMContext &Ctx) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(Ctx, 32), APInt(32, v)));
}
ConstantAsMetadata *DxilMDHelper::Int32ToConstMD(int32_t v) {
return DxilMDHelper::Int32ToConstMD(v, m_Ctx);
}
ConstantAsMetadata *DxilMDHelper::Uint32ToConstMD(unsigned v, LLVMContext &Ctx) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(Ctx, 32), APInt(32, v)));
}
ConstantAsMetadata *DxilMDHelper::Uint32ToConstMD(unsigned v) {
return DxilMDHelper::Uint32ToConstMD(v, m_Ctx);
}
ConstantAsMetadata *DxilMDHelper::Uint64ToConstMD(uint64_t v, LLVMContext &Ctx) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(Ctx, 64), APInt(64, v)));
}
ConstantAsMetadata *DxilMDHelper::Uint64ToConstMD(uint64_t v) {
return DxilMDHelper::Uint64ToConstMD(v, m_Ctx);
}
ConstantAsMetadata *DxilMDHelper::Int8ToConstMD(int8_t v) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(m_Ctx, 8), APInt(8, v)));
}
ConstantAsMetadata *DxilMDHelper::Uint8ToConstMD(uint8_t v) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(m_Ctx, 8), APInt(8, v)));
}
ConstantAsMetadata *DxilMDHelper::BoolToConstMD(bool v, LLVMContext &Ctx) {
return ConstantAsMetadata::get(Constant::getIntegerValue(IntegerType::get(Ctx, 1), APInt(1, v ? 1 : 0)));
}
ConstantAsMetadata *DxilMDHelper::BoolToConstMD(bool v) {
return DxilMDHelper::BoolToConstMD(v, m_Ctx);
}
ConstantAsMetadata *DxilMDHelper::FloatToConstMD(float v) {
return ConstantAsMetadata::get(ConstantFP::get(m_Ctx, APFloat(v)));
}
int32_t DxilMDHelper::ConstMDToInt32(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return (int32_t)pConst->getZExtValue();
}
unsigned DxilMDHelper::ConstMDToUint32(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return (unsigned)pConst->getZExtValue();
}
uint64_t DxilMDHelper::ConstMDToUint64(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pConst->getZExtValue();
}
int8_t DxilMDHelper::ConstMDToInt8(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return (int8_t)pConst->getZExtValue();
}
uint8_t DxilMDHelper::ConstMDToUint8(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return (uint8_t)pConst->getZExtValue();
}
bool DxilMDHelper::ConstMDToBool(const MDOperand &MDO) {
ConstantInt *pConst = mdconst::extract<ConstantInt>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pConst->getZExtValue() != 0;
}
float DxilMDHelper::ConstMDToFloat(const MDOperand &MDO) {
ConstantFP *pConst = mdconst::extract<ConstantFP>(MDO);
IFTBOOL(pConst != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pConst->getValueAPF().convertToFloat();
}
string DxilMDHelper::StringMDToString(const MDOperand &MDO) {
MDString *pMDString = dyn_cast<MDString>(MDO.get());
IFTBOOL(pMDString != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pMDString->getString();
}
Value *DxilMDHelper::ValueMDToValue(const MDOperand &MDO) {
IFTBOOL(MDO.get() != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
ValueAsMetadata *pValAsMD = dyn_cast<ValueAsMetadata>(MDO.get());
IFTBOOL(pValAsMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
Value *pValue = pValAsMD->getValue();
IFTBOOL(pValue != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
return pValue;
}
MDTuple *DxilMDHelper::Uint32VectorToConstMDTuple(const std::vector<unsigned> &Vec) {
vector<Metadata *> MDVals;
MDVals.resize(Vec.size());
for (size_t i = 0; i < Vec.size(); i++) {
MDVals[i] = Uint32ToConstMD(Vec[i]);
}
return MDNode::get(m_Ctx, MDVals);
}
void DxilMDHelper::ConstMDTupleToUint32Vector(MDTuple *pTupleMD, std::vector<unsigned> &Vec) {
IFTBOOL(pTupleMD != nullptr, DXC_E_INCORRECT_DXIL_METADATA);
Vec.resize(pTupleMD->getNumOperands());
for (size_t i = 0; i < pTupleMD->getNumOperands(); i++) {
Vec[i] = ConstMDToUint32(pTupleMD->getOperand(i));
}
}
bool DxilMDHelper::IsMarkedPrecise(const Instruction *inst) {
int32_t val = 0;
if (MDNode *precise = inst->getMetadata(kDxilPreciseAttributeMDName)) {
assert(precise->getNumOperands() == 1);
val = ConstMDToInt32(precise->getOperand(0));
}
return val;
}
void DxilMDHelper::MarkPrecise(Instruction *I) {
LLVMContext &Ctx = I->getContext();
MDNode *preciseNode = MDNode::get(
Ctx,
{ ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(Ctx), 1)) });
I->setMetadata(DxilMDHelper::kDxilPreciseAttributeMDName, preciseNode);
}
bool DxilMDHelper::IsMarkedNonUniform(const Instruction *inst) {
int32_t val = 0;
if (MDNode *precise = inst->getMetadata(kDxilNonUniformAttributeMDName)) {
assert(precise->getNumOperands() == 1);
val = ConstMDToInt32(precise->getOperand(0));
}
return val;
}
void DxilMDHelper::MarkNonUniform(Instruction *I) {
LLVMContext &Ctx = I->getContext();
MDNode *preciseNode = MDNode::get(
Ctx,
{ ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(Ctx), 1)) });
I->setMetadata(DxilMDHelper::kDxilNonUniformAttributeMDName, preciseNode);
}
} // namespace hlsl
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