1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
//===- 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 {
struct LowerExpectIntrinsicPass : PassInfoMixin<LowerExpectIntrinsicPass> {
/// Run the pass over the function.
///
/// This will lower all of the 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, FunctionAnalysisManager &);
};
}
#endif
|
