1 //===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass ---------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This pass implements an idiom recognizer that transforms simple loops into a 10 // non-loop form. In cases that this kicks in, it can be a significant 11 // performance win. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H 16 #define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H 17 18 #include "llvm/Analysis/LoopAnalysisManager.h" 19 #include "llvm/IR/PassManager.h" 20 21 namespace llvm { 22 23 class Loop; 24 class LPMUpdater; 25 26 /// Performs Loop Idiom Recognize Pass. 27 class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> { 28 public: 29 PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, 30 LoopStandardAnalysisResults &AR, LPMUpdater &U); 31 }; 32 33 } // end namespace llvm 34 35 #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H 36