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      1 //===- LoopPredication.h - Guard based loop predication 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 tries to convert loop variant range checks to loop invariant by
     11 // widening checks across loop iterations.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 
     15 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPPREDICATION_H
     16 #define LLVM_TRANSFORMS_SCALAR_LOOPPREDICATION_H
     17 
     18 #include "llvm/Analysis/LoopInfo.h"
     19 #include "llvm/IR/PassManager.h"
     20 #include "llvm/Transforms/Scalar/LoopPassManager.h"
     21 
     22 namespace llvm {
     23 
     24 /// Performs Loop Predication Pass.
     25 class LoopPredicationPass : public PassInfoMixin<LoopPredicationPass> {
     26 public:
     27   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
     28                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
     29 };
     30 } // end namespace llvm
     31 
     32 #endif // LLVM_TRANSFORMS_SCALAR_LOOPPREDICATION_H
     33