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- #pragma once
- #ifdef __GNUC__
- #pragma GCC diagnostic push
- #pragma GCC diagnostic ignored "-Wunused-parameter"
- #endif
- //===- LowerAtomic.cpp - Lower atomic intrinsics ----------------*- 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
- //
- //===----------------------------------------------------------------------===//
- /// \file
- // This pass lowers atomic intrinsics to non-atomic form for use in a known
- // non-preemptible environment.
- ///
- //===----------------------------------------------------------------------===//
- #ifndef LLVM_TRANSFORMS_SCALAR_LOWERATOMIC_H
- #define LLVM_TRANSFORMS_SCALAR_LOWERATOMIC_H
- #include "llvm/IR/PassManager.h"
- namespace llvm {
- /// A pass that lowers atomic intrinsic into non-atomic intrinsics.
- class LowerAtomicPass : public PassInfoMixin<LowerAtomicPass> {
- public:
- PreservedAnalyses run(Function &F, FunctionAnalysisManager &);
- static bool isRequired() { return true; }
- };
- class AtomicRMWInst;
- /// Convert the given RMWI into primitive load and stores,
- /// assuming that doing so is legal. Return true if the lowering
- /// succeeds.
- bool lowerAtomicRMWInst(AtomicRMWInst *RMWI);
- }
- #endif // LLVM_TRANSFORMS_SCALAR_LOWERATOMIC_H
- #ifdef __GNUC__
- #pragma GCC diagnostic pop
- #endif
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