llvm::ADCEPass Struct Reference

A DCE pass that assumes instructions are dead until proven otherwise. More...

#include "llvm/Transforms/Scalar/ADCE.h"

Inheritance diagram for llvm::ADCEPass:

Collaboration diagram for llvm::ADCEPass:

Public Member Functions
PreservedAnalyses	run (Function &F, FunctionAnalysisManager &)

Additional Inherited Members
Static Public Member Functions inherited from llvm::PassInfoMixin< ADCEPass >
static StringRef	name ()
	Gets the name of the pass we are mixed into. More...

Detailed Description

A DCE pass that assumes instructions are dead until proven otherwise.

This pass eliminates dead code by optimistically assuming that all instructions are dead until proven otherwise. This allows it to eliminate dead computations that other DCE passes do not catch, particularly involving loop computations.

Definition at line 32 of file ADCE.h.

Member Function Documentation

run()

PreservedAnalyses ADCEPass::run	(	Function &	F,
		FunctionAnalysisManager &	FAM
	)

Definition at line 674 of file ADCE.cpp.

References llvm::AnalysisUsage::addPreserved(), llvm::AnalysisUsage::addRequired(), llvm::PreservedAnalyses::all(), F(), llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getCachedResult(), llvm::PassRegistry::getPassRegistry(), llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getResult(), INITIALIZE_PASS_BEGIN(), INITIALIZE_PASS_DEPENDENCY, llvm::initializeADCELegacyPassPass(), llvm::PreservedAnalyses::preserve(), llvm::PreservedAnalyses::preserveSet(), RemoveControlFlowFlag, runOnFunction(), and llvm::AnalysisUsage::setPreservesCFG().

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The documentation for this struct was generated from the following files:

• include/llvm/Transforms/Scalar/ADCE.h
• lib/Transforms/Scalar/ADCE.cpp