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4cad16d76c
pass manager passes' `run` methods. This removes a bunch of SFINAE goop from the pass manager and just requires pass authors to accept `AnalysisManager<IRUnitT> &` as a dead argument. This is a small price to pay for the simplicity of the system as a whole, despite the noise that changing it causes at this stage. This will also helpfull allow us to make the signature of the run methods much more flexible for different kinds af passes to support things like intelligently updating the pass's progression over IR units. While this touches many, many, files, the changes are really boring. Mostly made with the help of my trusty perl one liners. Thanks to Sean and Hal for bouncing ideas for this with me in IRC. llvm-svn: 272978
37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
//===- 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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struct ADCEPass : PassInfoMixin<ADCEPass> {
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &);
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};
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}
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#endif // LLVM_TRANSFORMS_SCALAR_ADCE_H
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