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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- LoopSimplifyCFG.cpp - Loop CFG Simplification Pass -------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file implements the Loop SimplifyCFG Pass. This pass is responsible for |
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| 10 | // basic loop CFG cleanup, primarily to assist other loop passes. If you |
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| 11 | // encounter a noncanonical CFG construct that causes another loop pass to |
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| 12 | // perform suboptimally, this is the place to fix it up. |
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| 13 | // |
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| 14 | //===----------------------------------------------------------------------===// |
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| 15 | |||
| 16 | #ifndef LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H |
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| 17 | #define LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H |
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| 18 | |||
| 19 | #include "llvm/Analysis/LoopAnalysisManager.h" |
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| 20 | #include "llvm/IR/PassManager.h" |
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| 21 | |||
| 22 | namespace llvm { |
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| 23 | |||
| 24 | class LPMUpdater; |
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| 25 | class Loop; |
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| 26 | |||
| 27 | /// Performs basic CFG simplifications to assist other loop passes. |
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| 28 | class LoopSimplifyCFGPass : public PassInfoMixin<LoopSimplifyCFGPass> { |
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| 29 | public: |
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| 30 | PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, |
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| 31 | LoopStandardAnalysisResults &AR, LPMUpdater &U); |
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| 32 | }; |
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| 33 | } // end namespace llvm |
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| 34 | |||
| 35 | #endif // LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H |