llvm-project/llvm/lib/Target/DirectX/DXILTranslateMetadata.h
Finn Plummer 032900eb30
[DirectX] Add DXIL validation of llvm.loop metadata (#164292)
This pr adds the equivalent validation of `llvm.loop` metadata that is
[done in
DXC](8f21027f2a/lib/DxilValidation/DxilValidation.cpp (L3010)).

This is done as follows:
- Add `llvm.loop` to the metadata allow-list in `DXILTranslateMetadata`
- Iterate through all `llvm.loop` metadata nodes and strip all
incompatible ones
- Raise an error for ill-formed nodes that are compatible with DXIL

Resolves: https://github.com/llvm/llvm-project/issues/137387
2025-10-29 11:54:18 -07:00

43 lines
1.4 KiB
C++

//===- DXILTranslateMetadata.h - Pass to emit DXIL metadata -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_DIRECTX_DXILTRANSLATEMETADATA_H
#define LLVM_TARGET_DIRECTX_DXILTRANSLATEMETADATA_H
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
namespace llvm {
/// A pass that transforms LLVM Metadata in the module to it's DXIL equivalent,
/// then emits all recognized DXIL Metadata
class DXILTranslateMetadata : public PassInfoMixin<DXILTranslateMetadata> {
public:
PreservedAnalyses run(Module &M, ModuleAnalysisManager &);
};
/// Wrapper pass for the legacy pass manager.
///
/// This is required because the passes that will depend on this are codegen
/// passes which run through the legacy pass manager.
class DXILTranslateMetadataLegacy : public ModulePass {
public:
static char ID; // Pass identification, replacement for typeid
explicit DXILTranslateMetadataLegacy() : ModulePass(ID) {}
StringRef getPassName() const override { return "DXIL Translate Metadata"; }
void getAnalysisUsage(AnalysisUsage &AU) const override;
bool runOnModule(Module &M) override;
};
} // namespace llvm
#endif // LLVM_TARGET_DIRECTX_DXILTRANSLATEMETADATA_H