6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
32 lines
1.0 KiB
C++
32 lines
1.0 KiB
C++
//===---- 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/PassManager.h"
|
|
|
|
namespace llvm {
|
|
|
|
class Function;
|
|
|
|
// The Bit-Tracking Dead Code Elimination pass.
|
|
struct BDCEPass : PassInfoMixin<BDCEPass> {
|
|
PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
|
|
};
|
|
}
|
|
|
|
#endif // LLVM_TRANSFORMS_SCALAR_BDCE_H
|