//===- DeadStoreElimination.h - Fast Dead Store Elimination -----*- C++ -*-===//
 
//
 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 
// See https://llvm.org/LICENSE.txt for license information.
 
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
//
 
//===----------------------------------------------------------------------===//
 
//
 
// This file implements a trivial dead store elimination that only considers
 
// basic-block local redundant stores.
 
//
 
// FIXME: This should eventually be extended to be a post-dominator tree
 
// traversal.  Doing so would be pretty trivial.
 
//
 
//===----------------------------------------------------------------------===//
 
 
 
#ifndef LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H
 
#define LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H
 
 
 
#include "llvm/IR/PassManager.h"
 
 
 
namespace llvm {
 
 
 
class Function;
 
 
 
/// This class implements a trivial dead store elimination. We consider
 
/// only the redundant stores that are local to a single Basic Block.
 
class DSEPass : public PassInfoMixin<DSEPass> {
 
public:
 
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &FAM);
 
};
 
 
 
} // end namespace llvm
 
 
 
#endif // LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H