LLVM 20.0.0git
BDCE.h
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1//===---- BDCE.cpp - Bit-tracking dead code elimination ---------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file implements the Bit-Tracking Dead Code Elimination pass. Some
10// instructions (shifts, some ands, ors, etc.) kill some of their input bits.
11// We track these dead bits and remove instructions that compute only these
12// dead bits.
13//
14//===----------------------------------------------------------------------===//
15
16#ifndef LLVM_TRANSFORMS_SCALAR_BDCE_H
17#define LLVM_TRANSFORMS_SCALAR_BDCE_H
18
19#include "llvm/IR/PassManager.h"
20
21namespace llvm {
22
23class Function;
24
25// The Bit-Tracking Dead Code Elimination pass.
26struct BDCEPass : PassInfoMixin<BDCEPass> {
28};
29}
30
31#endif // LLVM_TRANSFORMS_SCALAR_BDCE_H
#define F(x, y, z)
Definition: MD5.cpp:55
This header defines various interfaces for pass management in LLVM.
A container for analyses that lazily runs them and caches their results.
Definition: PassManager.h:253
A set of analyses that are preserved following a run of a transformation pass.
Definition: Analysis.h:111
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM)
Definition: BDCE.cpp:202
A CRTP mix-in to automatically provide informational APIs needed for passes.
Definition: PassManager.h:69