llvm::GVNPassImpl Class Reference

The core GVN pass object. More...

Classes
struct	AvailableValue
	Represents a particular available value that we know how to materialize. More...
struct	AvailableValueInBlock
	Represents an AvailableValue which can be rematerialized at the end of the associated BasicBlock. More...

Public Member Functions
	GVNPassImpl (llvm::GVNOptions Options={})
void	salvageAndRemoveInstruction (Instruction *I)
	This removes the specified instruction from our various maps and marks it for deletion.
DominatorTree &	getDominatorTree () const
AAResults *	getAliasAnalysis () const
MemoryDependenceResults &	getMemDep () const
bool	isScalarPREEnabled () const
bool	isLoadPREEnabled () const
bool	isLoadInLoopPREEnabled () const
bool	isLoadPRESplitBackedgeEnabled () const
bool	isMemDepEnabled () const
bool	isMemorySSAEnabled () const

Friends
class	GVNPass
class	::GVNLegacyPass

Detailed Description

The core GVN pass object.

FIXME: We should have a good summary of the GVN algorithm implemented by this particular pass here.

Definition at line 242 of file GVN.cpp.

Constructor & Destructor Documentation

GVNPassImpl()

llvm::GVNPassImpl::GVNPassImpl ( llvm::GVNOptions Options = {} )

inline

Definition at line 250 of file GVN.cpp.

Member Function Documentation

getAliasAnalysis()

AAResults * llvm::GVNPassImpl::getAliasAnalysis ( ) const

inline

Definition at line 258 of file GVN.cpp.

getDominatorTree()

DominatorTree & llvm::GVNPassImpl::getDominatorTree ( ) const

inline

Definition at line 257 of file GVN.cpp.

getMemDep()

MemoryDependenceResults & llvm::GVNPassImpl::getMemDep ( ) const

inline

Definition at line 259 of file GVN.cpp.

isLoadInLoopPREEnabled()

bool GVNPassImpl::isLoadInLoopPREEnabled

(

)

const

Definition at line 1137 of file GVN.cpp.

isLoadPREEnabled()

bool GVNPassImpl::isLoadPREEnabled

(

)

const

Definition at line 1133 of file GVN.cpp.

isLoadPRESplitBackedgeEnabled()

bool GVNPassImpl::isLoadPRESplitBackedgeEnabled

(

)

const

Definition at line 1141 of file GVN.cpp.

isMemDepEnabled()

bool GVNPassImpl::isMemDepEnabled

(

)

const

Definition at line 1146 of file GVN.cpp.

References isMemorySSAEnabled(), and llvm::valueOr().

isMemorySSAEnabled()

bool GVNPassImpl::isMemorySSAEnabled

(

)

const

Definition at line 1155 of file GVN.cpp.

Referenced by isMemDepEnabled().

isScalarPREEnabled()

bool GVNPassImpl::isScalarPREEnabled

(

)

const

Definition at line 1129 of file GVN.cpp.

salvageAndRemoveInstruction()

void GVNPassImpl::salvageAndRemoveInstruction

(

Instruction *

I

)

This removes the specified instruction from our various maps and marks it for deletion.

Definition at line 1201 of file GVN.cpp.

References I, llvm::salvageDebugInfo(), and llvm::salvageKnowledge().

Friends And Related Symbol Documentation

::GVNLegacyPass

friend class ::GVNLegacyPass

friend

Definition at line 270 of file GVN.cpp.

References F.

GVNPass

friend class GVNPass

friend

Definition at line 269 of file GVN.cpp.

References GVNPass.

Referenced by GVNPass.

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

• lib/Transforms/Scalar/GVN.cpp