contrib/libs/llvm14/include/llvm/Transforms/Scalar/BDCE.h


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
38
39
40
41

#pragma once

#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif

//===---- BDCE.cpp - Bit-tracking dead code 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 the Bit-Tracking Dead Code Elimination pass. Some
// instructions (shifts, some ands, ors, etc.) kill some of their input bits.
// We track these dead bits and remove instructions that compute only these
// dead bits.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_SCALAR_BDCE_H
#define LLVM_TRANSFORMS_SCALAR_BDCE_H

#include "llvm/IR/Function.h"
#include "llvm/IR/PassManager.h"

namespace llvm {

// The Bit-Tracking Dead Code Elimination pass.
struct BDCEPass : PassInfoMixin<BDCEPass> {
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
}

#endif // LLVM_TRANSFORMS_SCALAR_BDCE_H

#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif