llvm::SDNodeFlags Struct Reference

These are IR-level optimization flags that may be propagated to SDNodes. More...

#include "llvm/CodeGen/SelectionDAGNodes.h"

Public Member Functions
	SDNodeFlags ()
	Default constructor turns off all optimization flags.
void	copyFMF (const FPMathOperator &FPMO)
	Propagate the fast-math-flags from an IR FPMathOperator.
void	setNoUnsignedWrap (bool b)
void	setNoSignedWrap (bool b)
void	setExact (bool b)
void	setNoNaNs (bool b)
void	setNoInfs (bool b)
void	setNoSignedZeros (bool b)
void	setAllowReciprocal (bool b)
void	setAllowContract (bool b)
void	setApproximateFuncs (bool b)
void	setAllowReassociation (bool b)
void	setNoFPExcept (bool b)
bool	hasNoUnsignedWrap () const
bool	hasNoSignedWrap () const
bool	hasExact () const
bool	hasNoNaNs () const
bool	hasNoInfs () const
bool	hasNoSignedZeros () const
bool	hasAllowReciprocal () const
bool	hasAllowContract () const
bool	hasApproximateFuncs () const
bool	hasAllowReassociation () const
bool	hasNoFPExcept () const
void	intersectWith (const SDNodeFlags Flags)
	Clear any flags in this flag set that aren't also set in Flags.

Detailed Description

These are IR-level optimization flags that may be propagated to SDNodes.

TODO: This data structure should be shared by the IR optimizer and the the backend.

Definition at line 379 of file SelectionDAGNodes.h.

Constructor & Destructor Documentation

SDNodeFlags()

llvm::SDNodeFlags::SDNodeFlags ( )

inline

Default constructor turns off all optimization flags.

Definition at line 401 of file SelectionDAGNodes.h.

Member Function Documentation

copyFMF()

void llvm::SDNodeFlags::copyFMF ( const FPMathOperator &  FPMO )

inline

Propagate the fast-math-flags from an IR FPMathOperator.

Definition at line 408 of file SelectionDAGNodes.h.

References llvm::FPMathOperator::hasAllowContract(), llvm::FPMathOperator::hasAllowReassoc(), llvm::FPMathOperator::hasAllowReciprocal(), llvm::FPMathOperator::hasApproxFunc(), llvm::FPMathOperator::hasNoInfs(), llvm::FPMathOperator::hasNoNaNs(), llvm::FPMathOperator::hasNoSignedZeros(), setAllowContract(), setAllowReassociation(), setAllowReciprocal(), setApproximateFuncs(), setNoInfs(), setNoNaNs(), and setNoSignedZeros().

hasAllowContract()

bool llvm::SDNodeFlags::hasAllowContract ( ) const

inline

Definition at line 439 of file SelectionDAGNodes.h.

hasAllowReassociation()

bool llvm::SDNodeFlags::hasAllowReassociation ( ) const

inline

Definition at line 441 of file SelectionDAGNodes.h.

hasAllowReciprocal()

bool llvm::SDNodeFlags::hasAllowReciprocal ( ) const

inline

Definition at line 438 of file SelectionDAGNodes.h.

hasApproximateFuncs()

bool llvm::SDNodeFlags::hasApproximateFuncs ( ) const

inline

Definition at line 440 of file SelectionDAGNodes.h.

hasExact()

bool llvm::SDNodeFlags::hasExact ( ) const

inline

Definition at line 434 of file SelectionDAGNodes.h.

hasNoFPExcept()

bool llvm::SDNodeFlags::hasNoFPExcept ( ) const

inline

Definition at line 442 of file SelectionDAGNodes.h.

hasNoInfs()

bool llvm::SDNodeFlags::hasNoInfs ( ) const

inline

Definition at line 436 of file SelectionDAGNodes.h.

hasNoNaNs()

bool llvm::SDNodeFlags::hasNoNaNs ( ) const

inline

Definition at line 435 of file SelectionDAGNodes.h.

hasNoSignedWrap()

bool llvm::SDNodeFlags::hasNoSignedWrap ( ) const

inline

Definition at line 433 of file SelectionDAGNodes.h.

Referenced by combineShiftToAVG(), and llvm::TargetLowering::SimplifySetCC().

hasNoSignedZeros()

bool llvm::SDNodeFlags::hasNoSignedZeros ( ) const

inline

Definition at line 437 of file SelectionDAGNodes.h.

Referenced by PerformFAddVSelectCombine().

hasNoUnsignedWrap()

bool llvm::SDNodeFlags::hasNoUnsignedWrap ( ) const

inline

Definition at line 432 of file SelectionDAGNodes.h.

Referenced by combineShiftToAVG(), and llvm::TargetLowering::SimplifySetCC().

intersectWith()

void llvm::SDNodeFlags::intersectWith ( const SDNodeFlags  Flags )

inline

Clear any flags in this flag set that aren't also set in Flags.

All flags will be cleared if Flags are undefined.

Definition at line 446 of file SelectionDAGNodes.h.

References Flags.

Referenced by llvm::SDNode::intersectFlagsWith().

setAllowContract()

void llvm::SDNodeFlags::setAllowContract ( bool  b )

inline

Definition at line 426 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setAllowReassociation()

void llvm::SDNodeFlags::setAllowReassociation ( bool  b )

inline

Definition at line 428 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setAllowReciprocal()

void llvm::SDNodeFlags::setAllowReciprocal ( bool  b )

inline

Definition at line 425 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setApproximateFuncs()

void llvm::SDNodeFlags::setApproximateFuncs ( bool  b )

inline

Definition at line 427 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setExact()

void llvm::SDNodeFlags::setExact ( bool  b )

inline

Definition at line 421 of file SelectionDAGNodes.h.

setNoFPExcept()

void llvm::SDNodeFlags::setNoFPExcept ( bool  b )

inline

Definition at line 429 of file SelectionDAGNodes.h.

setNoInfs()

void llvm::SDNodeFlags::setNoInfs ( bool  b )

inline

Definition at line 423 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setNoNaNs()

void llvm::SDNodeFlags::setNoNaNs ( bool  b )

inline

Definition at line 422 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setNoSignedWrap()

void llvm::SDNodeFlags::setNoSignedWrap ( bool  b )

inline

Definition at line 420 of file SelectionDAGNodes.h.

setNoSignedZeros()

void llvm::SDNodeFlags::setNoSignedZeros ( bool  b )

inline

Definition at line 424 of file SelectionDAGNodes.h.

Referenced by copyFMF().

setNoUnsignedWrap()

void llvm::SDNodeFlags::setNoUnsignedWrap ( bool  b )

inline

Definition at line 419 of file SelectionDAGNodes.h.

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

• include/llvm/CodeGen/SelectionDAGNodes.h