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//===- LoopDeletion.h - Loop Deletion -------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the interface for the Loop Deletion Pass.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_SCALAR_LOOPDELETION_H
#define LLVM_TRANSFORMS_SCALAR_LOOPDELETION_H
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Transforms/Scalar/LoopPassManager.h"
namespace llvm {
class LoopDeletionPass : public PassInfoMixin<LoopDeletionPass> {
public:
LoopDeletionPass() {}
PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
LoopStandardAnalysisResults &AR, LPMUpdater &U);
bool runImpl(Loop *L, DominatorTree &DT, ScalarEvolution &SE,
LoopInfo &loopInfo);
private:
bool isLoopDead(Loop *L, ScalarEvolution &SE,
SmallVectorImpl<BasicBlock *> &exitingBlocks,
SmallVectorImpl<BasicBlock *> &exitBlocks, bool &Changed,
BasicBlock *Preheader);
};
}
#endif // LLVM_TRANSFORMS_SCALAR_LOOPDELETION_H
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