llvm::LiveValues Class Reference

#include <LiveValues.h>

List of all members.

Classes
struct	Memo
Public Member Functions
virtual void	getAnalysisUsage (AnalysisUsage &AU) const
virtual bool	runOnFunction (Function &F)
virtual void	releaseMemory ()
bool	isUsedInBlock (const Value *V, const BasicBlock *BB)
bool	isLiveThroughBlock (const Value *V, const BasicBlock *BB)
bool	isKilledInBlock (const Value *V, const BasicBlock *BB)
Static Public Attributes
static char	ID

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Detailed Description

LiveValues - Analysis that provides liveness information for LLVM IR Values.

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Member Function Documentation

bool llvm::LiveValues::isKilledInBlock	(	const Value *	V,
		const BasicBlock *	BB
	)

isKilledInBlock - Test if the given value is known to be killed in the given block, meaning that the block contains a use of the value, and no blocks reachable from the block contain a use. This uses a conservative approximation that errs on the side of returning false.

bool llvm::LiveValues::isLiveThroughBlock	(	const Value *	V,
		const BasicBlock *	BB
	)

isLiveThroughBlock - Test if the given value is known to be live-through the given block, meaning that the block is properly dominated by the value's definition, and there exists a block reachable from it that contains a use. This uses a conservative approximation that errs on the side of returning false.

bool llvm::LiveValues::isUsedInBlock	(	const Value *	V,
		const BasicBlock *	BB
	)

isUsedInBlock - Test if the given value is used in the given block.

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The documentation for this class was generated from the following file:

• LiveValues.h