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- #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
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