Transforms/Scalar/LoopRotation.h

0001 //===- LoopRotation.h - Loop Rotation -------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008 //
0009 // This file provides the interface for the Loop Rotation pass.
0010 //
0011 //===----------------------------------------------------------------------===//
0012
0013 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H
0014 #define LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H
0015
0016 #include "llvm/Analysis/LoopAnalysisManager.h"
0017 #include "llvm/IR/PassManager.h"
0018
0019 namespace llvm {
0020 class LPMUpdater;
0021 class Loop;
0022
0023 /// A simple loop rotation transformation.
0024 class LoopRotatePass : public PassInfoMixin<LoopRotatePass> {
0025 public:
0026   LoopRotatePass(bool EnableHeaderDuplication = true,
0027                  bool PrepareForLTO = false);
0028   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
0029                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
0030
0031   void printPipeline(raw_ostream &OS,
0032                      function_ref<StringRef(StringRef)> MapClassName2PassName);
0033
0034 private:
0035   const bool EnableHeaderDuplication;
0036   const bool PrepareForLTO;
0037 };
0038 }
0039
0040 #endif // LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H