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//===- SCCP.cpp - Sparse Conditional Constant Propagation -------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// \file
// This file implements sparse conditional constant propagation and merging:
//
// Specifically, this:
//   * Assumes values are constant unless proven otherwise
//   * Assumes BasicBlocks are dead unless proven otherwise
//   * Proves values to be constant, and replaces them with constants
//   * Proves conditional branches to be unconditional
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_SCALAR_SCCP_H
#define LLVM_TRANSFORMS_SCALAR_SCCP_H

#include "llvm/IR/PassManager.h"

namespace llvm {

class Function;

/// This pass performs function-level constant propagation and merging.
class SCCPPass : public PassInfoMixin<SCCPPass> {
public:
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};

} // end namespace llvm

#endif // LLVM_TRANSFORMS_SCALAR_SCCP_H