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File indexing completed on 2026-05-10 08:44:41
0001 //===- ADCE.h - Aggressive dead code elimination ----------------*- C++ -*-===// 0002 // 0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0004 // See https://llvm.org/LICENSE.txt for license information. 0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0006 // 0007 //===----------------------------------------------------------------------===// 0008 // 0009 // This file provides the interface for the Aggressive Dead Code Elimination 0010 // pass. This pass optimistically assumes that all instructions are dead until 0011 // proven otherwise, allowing it to eliminate dead computations that other DCE 0012 // passes do not catch, particularly involving loop computations. 0013 // 0014 //===----------------------------------------------------------------------===// 0015 0016 #ifndef LLVM_TRANSFORMS_SCALAR_ADCE_H 0017 #define LLVM_TRANSFORMS_SCALAR_ADCE_H 0018 0019 #include "llvm/IR/PassManager.h" 0020 0021 namespace llvm { 0022 0023 class Function; 0024 0025 /// A DCE pass that assumes instructions are dead until proven otherwise. 0026 /// 0027 /// This pass eliminates dead code by optimistically assuming that all 0028 /// instructions are dead until proven otherwise. This allows it to eliminate 0029 /// dead computations that other DCE passes do not catch, particularly involving 0030 /// loop computations. 0031 struct ADCEPass : PassInfoMixin<ADCEPass> { 0032 PreservedAnalyses run(Function &F, FunctionAnalysisManager &); 0033 }; 0034 0035 } // end namespace llvm 0036 0037 #endif // LLVM_TRANSFORMS_SCALAR_ADCE_H
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