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      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/IR/PassManager.h"
     21 
     22 namespace llvm {
     23 
     24 /// Performs Loop Idiom Recognize Pass.
     25 class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> {
     26 public:
     27   PreservedAnalyses run(Loop &L, AnalysisManager<Loop> &AM);
     28 };
     29 } // end namespace llvm
     30 
     31 #endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
     32