| //===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass ---------*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This pass implements an idiom recognizer that transforms simple loops into a |
| // non-loop form. In cases that this kicks in, it can be a significant |
| // performance win. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H |
| #define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H |
| |
| #include "llvm/Analysis/LoopAnalysisManager.h" |
| #include "llvm/IR/PassManager.h" |
| |
| namespace llvm { |
| |
| class Loop; |
| class LPMUpdater; |
| |
| /// Options to disable Loop Idiom Recognize, which can be shared with other |
| /// passes. |
| struct DisableLIRP { |
| /// When true, the entire pass is disabled. |
| static bool All; |
| |
| /// When true, Memset is disabled. |
| static bool Memset; |
| |
| /// When true, Memcpy is disabled. |
| static bool Memcpy; |
| }; |
| |
| /// Performs Loop Idiom Recognize Pass. |
| class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> { |
| public: |
| PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, |
| LoopStandardAnalysisResults &AR, LPMUpdater &U); |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H |