1 //===- LoopRotation.h - Loop Rotation -------------------------------------===//
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 file provides the interface for the Loop Rotation pass.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H
14 #define LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H
15 
16 #include "llvm/Analysis/LoopAnalysisManager.h"
17 #include "llvm/IR/PassManager.h"
18 
19 namespace llvm {
20 class LPMUpdater;
21 class Loop;
22 
23 /// A simple loop rotation transformation.
24 class LoopRotatePass : public PassInfoMixin<LoopRotatePass> {
25 public:
26   LoopRotatePass(bool EnableHeaderDuplication = true,
27                  bool PrepareForLTO = false);
28   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
29                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
30 
31   void printPipeline(raw_ostream &OS,
32                      function_ref<StringRef(StringRef)> MapClassName2PassName);
33 
34 private:
35   const bool EnableHeaderDuplication;
36   const bool PrepareForLTO;
37 };
38 }
39 
40 #endif // LLVM_TRANSFORMS_SCALAR_LOOPROTATION_H
41