37 lines
1.4 KiB
C++
37 lines
1.4 KiB
C++
//===- LoopSimplifyCFG.cpp - Loop CFG Simplification Pass -------*- C++ -*-===//
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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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// This file implements the Loop SimplifyCFG Pass. This pass is responsible for
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// basic loop CFG cleanup, primarily to assist other loop passes. If you
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// encounter a noncanonical CFG construct that causes another loop pass to
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// perform suboptimally, this is the place to fix it up.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H
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#define LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H
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#include "llvm/Analysis/LoopAnalysisManager.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class LPMUpdater;
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class Loop;
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/// Performs basic CFG simplifications to assist other loop passes.
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class LoopSimplifyCFGPass : public OptionalPassInfoMixin<LoopSimplifyCFGPass> {
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public:
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LLVM_ABI PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
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LoopStandardAnalysisResults &AR,
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LPMUpdater &U);
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};
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} // end namespace llvm
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#endif // LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H
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