2015-10-31 00:13:18 +01:00
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//===- ADCE.h - Aggressive dead code elimination --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides the interface for the Aggressive Dead Code Elimination
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// pass. This pass optimistically assumes that all instructions are dead until
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// proven otherwise, allowing it to eliminate dead computations that other DCE
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// passes do not catch, particularly involving loop computations.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_SCALAR_ADCE_H
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#define LLVM_TRANSFORMS_SCALAR_ADCE_H
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#include "llvm/IR/Function.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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/// A DCE pass that assumes instructions are dead until proven otherwise.
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///
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/// This pass eliminates dead code by optimistically assuming that all
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/// instructions are dead until proven otherwise. This allows it to eliminate
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/// dead computations that other DCE passes do not catch, particularly involving
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/// loop computations.
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2016-03-11 11:33:22 +01:00
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struct ADCEPass : PassInfoMixin<ADCEPass> {
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2016-06-17 02:11:01 +02:00
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &);
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2015-10-31 00:13:18 +01:00
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};
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}
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#endif // LLVM_TRANSFORMS_SCALAR_ADCE_H
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