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//===- LowerExpectIntrinsic.h - LowerExpectIntrinsic pass -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
///
/// The header file for the LowerExpectIntrinsic pass as used by the new pass
/// manager.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_SCALAR_LOWEREXPECTINTRINSIC_H
#define LLVM_TRANSFORMS_SCALAR_LOWEREXPECTINTRINSIC_H
#include "llvm/IR/Function.h"
#include "llvm/IR/PassManager.h"
namespace llvm {
class LowerExpectIntrinsicPass {
public:
static StringRef name() { return "LowerExpectIntrinsicPass"; }
/// \brief Run the pass over the function.
///
/// This will lower all of th expect intrinsic calls in this function into
/// branch weight metadata. That metadata will subsequently feed the analysis
/// of the probabilities and frequencies of the CFG. After running this pass,
/// no more expect intrinsics remain, allowing the rest of the optimizer to
/// ignore them.
PreservedAnalyses run(Function &F);
};
}
#endif
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