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. More...

void	copyFMF (const FPMathOperator &FPMO)
	Propagate the fast-math-flags from an IR FPMathOperator. More...

void	setDefined ()
	Sets the state of the flags to the defined state. More...

bool	isDefined () const
	Returns true if the flags are in a defined state. More...

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	setVectorReduction (bool b)

void	setAllowContract (bool b)

void	setApproximateFuncs (bool b)

void	setAllowReassociation (bool b)

bool	hasNoUnsignedWrap () const

bool	hasNoSignedWrap () const

bool	hasExact () const

bool	hasNoNaNs () const

bool	hasNoInfs () const

bool	hasNoSignedZeros () const

bool	hasAllowReciprocal () const

bool	hasVectorReduction () const

bool	hasAllowContract () const

bool	hasApproximateFuncs () const

bool	hasAllowReassociation () const

bool	isFast () const

void	intersectWith (const SDNodeFlags Flags)
	Clear any flags in this flag set that aren't also set in Flags. More...

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 353 of file SelectionDAGNodes.h.

Constructor & Destructor Documentation

◆ SDNodeFlags()

llvm::SDNodeFlags::SDNodeFlags ( )

inline

Default constructor turns off all optimization flags.

Definition at line 374 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 382 of file SelectionDAGNodes.h.

References llvm::FPMathOperator::hasAllowContract(), llvm::FPMathOperator::hasAllowReassoc(), llvm::FPMathOperator::hasAllowReciprocal(), llvm::FPMathOperator::hasApproxFunc(), llvm::FPMathOperator::hasNoInfs(), llvm::FPMathOperator::hasNoNaNs(), and llvm::FPMathOperator::hasNoSignedZeros().

◆ hasAllowContract()

bool llvm::SDNodeFlags::hasAllowContract ( ) const

inline

Definition at line 452 of file SelectionDAGNodes.h.

References llvm::bitc::AllowContract.

Referenced by llvm::InstrEmitter::EmitDbgLabel(), getMad64_32(), isClampZeroToOne(), and isContractable().

◆ hasAllowReassociation()

bool llvm::SDNodeFlags::hasAllowReassociation ( ) const

inline

Definition at line 454 of file SelectionDAGNodes.h.

Referenced by llvm::InstrEmitter::EmitDbgLabel(), and isContractable().

◆ hasAllowReciprocal()

bool llvm::SDNodeFlags::hasAllowReciprocal ( ) const

inline

Definition at line 450 of file SelectionDAGNodes.h.

References llvm::bitc::AllowReciprocal.

Referenced by llvm::InstrEmitter::EmitDbgLabel(), getLoadExtOrTrunc(), and isContractable().

◆ hasApproximateFuncs()

bool llvm::SDNodeFlags::hasApproximateFuncs ( ) const

inline

Definition at line 453 of file SelectionDAGNodes.h.

Referenced by CanCombineFCOPYSIGN_EXTEND_ROUND(), llvm::InstrEmitter::EmitDbgLabel(), and isContractable().

◆ hasExact()

bool llvm::SDNodeFlags::hasExact ( ) const

inline

Definition at line 446 of file SelectionDAGNodes.h.

Referenced by llvm::TargetLowering::BuildSDIV(), calculateByteProvider(), llvm::InstrEmitter::EmitDbgLabel(), llvm::TargetLowering::SimplifyDemandedBits(), and simplifyDivRem().

◆ hasNoInfs()

bool llvm::SDNodeFlags::hasNoInfs ( ) const

inline

Definition at line 448 of file SelectionDAGNodes.h.

References llvm::bitc::NoInfs.

Referenced by CanCombineFCOPYSIGN_EXTEND_ROUND(), and llvm::InstrEmitter::EmitDbgLabel().

◆ hasNoNaNs()

bool llvm::SDNodeFlags::hasNoNaNs ( ) const

inline

Definition at line 447 of file SelectionDAGNodes.h.

References llvm::bitc::NoNaNs.

Referenced by CanCombineFCOPYSIGN_EXTEND_ROUND(), combineFMinNumFMaxNum(), llvm::createR600ISelDag(), llvm::InstrEmitter::EmitDbgLabel(), getReductionSDNode(), isContractable(), and llvm::SelectionDAG::isKnownNeverNaN().

◆ hasNoSignedWrap()

bool llvm::SDNodeFlags::hasNoSignedWrap ( ) const

inline

Definition at line 445 of file SelectionDAGNodes.h.

Referenced by llvm::InstrEmitter::EmitDbgLabel(), EmitTest(), promoteExtBeforeAdd(), llvm::TargetLowering::SimplifyDemandedBits(), and tryFoldToZero().

◆ hasNoSignedZeros()

bool llvm::SDNodeFlags::hasNoSignedZeros ( ) const

inline

Definition at line 449 of file SelectionDAGNodes.h.

References llvm::bitc::NoSignedZeros.

Referenced by CanCombineFCOPYSIGN_EXTEND_ROUND(), combineFneg(), llvm::InstrEmitter::EmitDbgLabel(), GetNegatedExpression(), llvm::SelectionDAG::getNode(), isContractable(), isNegatibleForFree(), and llvm::AMDGPUTargetLowering::mayIgnoreSignedZero().

◆ hasNoUnsignedWrap()

bool llvm::SDNodeFlags::hasNoUnsignedWrap ( ) const

inline

Definition at line 444 of file SelectionDAGNodes.h.

Referenced by llvm::InstrEmitter::EmitDbgLabel(), getFPTernOp(), isStackPtrRelative(), promoteExtBeforeAdd(), llvm::TargetLowering::SimplifyDemandedBits(), and tryFoldToZero().

◆ hasVectorReduction()

bool llvm::SDNodeFlags::hasVectorReduction ( ) const

inline

Definition at line 451 of file SelectionDAGNodes.h.

Referenced by combineAdd(), and isAnyConstantBuildVector().

◆ intersectWith()

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

inline

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

If the given Flags are undefined then don't do anything.

Definition at line 463 of file SelectionDAGNodes.h.

References llvm::bitc::AllowContract, llvm::bitc::AllowReciprocal, isDefined(), llvm::bitc::NoInfs, llvm::bitc::NoNaNs, and llvm::bitc::NoSignedZeros.

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

◆ isDefined()

bool llvm::SDNodeFlags::isDefined ( ) const

inline

Returns true if the flags are in a defined state.

Definition at line 395 of file SelectionDAGNodes.h.

Referenced by llvm::createR600ISelDag(), and intersectWith().

◆ isFast()

bool llvm::SDNodeFlags::isFast ( ) const

inline

Definition at line 456 of file SelectionDAGNodes.h.

References llvm::bitc::AllowContract, llvm::bitc::AllowReciprocal, llvm::bitc::NoInfs, llvm::bitc::NoNaNs, and llvm::bitc::NoSignedZeros.

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

◆ setAllowContract()

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

inline

Definition at line 430 of file SelectionDAGNodes.h.

References llvm::bitc::AllowContract.

◆ setAllowReassociation()

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

inline

Definition at line 438 of file SelectionDAGNodes.h.

Referenced by getEstimate().

◆ setAllowReciprocal()

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

inline

Definition at line 422 of file SelectionDAGNodes.h.

References llvm::bitc::AllowReciprocal.

◆ setApproximateFuncs()

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

inline

Definition at line 434 of file SelectionDAGNodes.h.

◆ setDefined()

void llvm::SDNodeFlags::setDefined ( )

inline

Sets the state of the flags to the defined state.

Definition at line 393 of file SelectionDAGNodes.h.

◆ setExact()

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

inline

Definition at line 406 of file SelectionDAGNodes.h.

Referenced by BuildExactSDIV(), isVectorReductionOp(), and llvm::TargetLowering::SimplifyDemandedBits().

◆ setNoInfs()

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

inline

Definition at line 414 of file SelectionDAGNodes.h.

References llvm::bitc::NoInfs.

Referenced by PrepareCall().

◆ setNoNaNs()

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

inline

Definition at line 410 of file SelectionDAGNodes.h.

References llvm::bitc::NoNaNs.

Referenced by PrepareCall().

◆ setNoSignedWrap()

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

inline

Definition at line 402 of file SelectionDAGNodes.h.

Referenced by isVectorReductionOp(), promoteExtBeforeAdd(), and llvm::TargetLowering::SimplifyDemandedBits().

◆ setNoSignedZeros()

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

inline

Definition at line 418 of file SelectionDAGNodes.h.

References llvm::bitc::NoSignedZeros.

◆ setNoUnsignedWrap()

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

inline

Definition at line 398 of file SelectionDAGNodes.h.

Referenced by getFPTernOp(), llvm::SelectionDAG::getObjectPtrOffset(), hasOnlySelectUsers(), isTruncateOf(), isVectorReductionOp(), promoteExtBeforeAdd(), and llvm::TargetLowering::SimplifyDemandedBits().

◆ setVectorReduction()

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

inline

Definition at line 426 of file SelectionDAGNodes.h.

Referenced by isVectorReductionOp().

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

include/llvm/CodeGen/SelectionDAGNodes.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ SDNodeFlags()

Member Function Documentation

◆ copyFMF()

◆ hasAllowContract()

◆ hasAllowReassociation()

◆ hasAllowReciprocal()

◆ hasApproximateFuncs()

◆ hasExact()

◆ hasNoInfs()

◆ hasNoNaNs()

◆ hasNoSignedWrap()

◆ hasNoSignedZeros()

◆ hasNoUnsignedWrap()

◆ hasVectorReduction()

◆ intersectWith()

◆ isDefined()

◆ isFast()

◆ setAllowContract()

◆ setAllowReassociation()

◆ setAllowReciprocal()

◆ setApproximateFuncs()

◆ setDefined()

◆ setExact()

◆ setNoInfs()

◆ setNoNaNs()

◆ setNoSignedWrap()

◆ setNoSignedZeros()

◆ setNoUnsignedWrap()

◆ setVectorReduction()