MaskOpsCleanupPass Class Reference

Inheritance diagram for MaskOpsCleanupPass:

Collaboration diagram for MaskOpsCleanupPass:

Public Member Functions
	MaskOpsCleanupPass (llvm::Module *m)
llvm::StringRef	getPassName () const
bool	runOnBasicBlock (llvm::BasicBlock &BB)
bool	runOnFunction (llvm::Function &F)

Private Member Functions
llvm::Value *	lGetNotOperand (llvm::Value *v) const

Private Attributes
llvm::Function *	notFunc
llvm::Function *	andNotFuncs [2]

Static Private Attributes
static char	ID = 0

Detailed Description

This pass does various peephole improvements to mask modification operations. In particular, it converts mask XORs with "all true" to calls to __not() and replaces operations like and(not(a), b) to __and_not1(a, b) (and similarly if the second operand has not applied to it...)

Definition at line 5085 of file cbackend.cpp.

Constructor & Destructor Documentation

MaskOpsCleanupPass()

MaskOpsCleanupPass::MaskOpsCleanupPass ( llvm::Module *  m )

inline

Definition at line 5087 of file cbackend.cpp.

Member Function Documentation

getPassName()

llvm::StringRef MaskOpsCleanupPass::getPassName ( ) const

inline

Definition at line 5122 of file cbackend.cpp.

lGetNotOperand()

llvm::Value * MaskOpsCleanupPass::lGetNotOperand ( llvm::Value *  v ) const

private

Checks to see if the given value is the NOT of some other value. If so, it returns the operand of the NOT; otherwise returns NULL.

Definition at line 5158 of file cbackend.cpp.

runOnBasicBlock()

bool MaskOpsCleanupPass::runOnBasicBlock

(

llvm::BasicBlock &

BB

)

Definition at line 5172 of file cbackend.cpp.

runOnFunction()

bool MaskOpsCleanupPass::runOnFunction

(

llvm::Function &

F

)

Definition at line 5224 of file cbackend.cpp.

Member Data Documentation

andNotFuncs

llvm::Function * MaskOpsCleanupPass::andNotFuncs[2]

private

Definition at line 5129 of file cbackend.cpp.

ID

char MaskOpsCleanupPass::ID = 0

staticprivate

Definition at line 5131 of file cbackend.cpp.

notFunc

llvm::Function* MaskOpsCleanupPass::notFunc

private

Definition at line 5129 of file cbackend.cpp.

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

• cbackend.cpp