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[android-x86/external-llvm.git] / include / llvm / Transforms / Scalar / LoopIdiomRecognize.h
1 //===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass -------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This pass implements an idiom recognizer that transforms simple loops into a
11 // non-loop form.  In cases that this kicks in, it can be a significant
12 // performance win.
13 //
14 //===----------------------------------------------------------------------===//
15
16 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
17 #define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
18
19 #include "llvm/Analysis/LoopInfo.h"
20 #include "llvm/Analysis/LoopPassManager.h"
21 #include "llvm/IR/PassManager.h"
22
23 namespace llvm {
24
25 /// Performs Loop Idiom Recognize Pass.
26 class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> {
27 public:
28   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM);
29 };
30 } // end namespace llvm
31
32 #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H