1ff5f328d9
Adding support for Root Signature Flags Element extraction and writing to DXContainer. - Adding an analysis to deal with RootSignature metadata definition - Adding validation for Flag - writing RootSignature blob into DXIL Closes: [126632](https://github.com/llvm/llvm-project/issues/126632) --------- Co-authored-by: joaosaffran <joao.saffran@microsoft.com>
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//===- DXILRootSignature.h - DXIL Root Signature helper objects -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file This file contains helper objects and APIs for working with DXIL
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/// Root Signatures.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Analysis/DXILMetadataAnalysis.h"
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#include "llvm/IR/DiagnosticInfo.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/MC/DXContainerRootSignature.h"
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#include "llvm/Pass.h"
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#include <optional>
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namespace llvm {
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namespace dxil {
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enum class RootSignatureElementKind { Error = 0, RootFlags = 1 };
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class RootSignatureAnalysis : public AnalysisInfoMixin<RootSignatureAnalysis> {
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friend AnalysisInfoMixin<RootSignatureAnalysis>;
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static AnalysisKey Key;
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public:
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RootSignatureAnalysis() = default;
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using Result = SmallDenseMap<const Function *, mcdxbc::RootSignatureDesc>;
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SmallDenseMap<const Function *, mcdxbc::RootSignatureDesc>
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run(Module &M, ModuleAnalysisManager &AM);
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};
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/// Wrapper pass for the legacy pass manager.
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///
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/// This is required because the passes that will depend on this are codegen
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/// passes which run through the legacy pass manager.
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class RootSignatureAnalysisWrapper : public ModulePass {
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private:
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SmallDenseMap<const Function *, mcdxbc::RootSignatureDesc> FuncToRsMap;
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public:
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static char ID;
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RootSignatureAnalysisWrapper() : ModulePass(ID) {}
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using iterator =
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SmallDenseMap<const Function *, mcdxbc::RootSignatureDesc>::iterator;
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iterator find(const Function *F) { return FuncToRsMap.find(F); }
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iterator end() { return FuncToRsMap.end(); }
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bool runOnModule(Module &M) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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};
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/// Printer pass for RootSignatureAnalysis results.
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class RootSignatureAnalysisPrinter
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: public PassInfoMixin<RootSignatureAnalysisPrinter> {
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raw_ostream &OS;
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public:
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explicit RootSignatureAnalysisPrinter(raw_ostream &OS) : OS(OS) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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};
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} // namespace dxil
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} // namespace llvm
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