LLVM  14.0.0git
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llvm::FastMathFlags Class Reference

Convenience struct for specifying and reasoning about fast-math flags. More...

#include "llvm/IR/Operator.h"

Public Types

enum  {
  AllowReassoc = (1 << 0), NoNaNs = (1 << 1), NoInfs = (1 << 2), NoSignedZeros = (1 << 3),
  AllowReciprocal = (1 << 4), AllowContract = (1 << 5), ApproxFunc = (1 << 6)
}
 

Public Member Functions

 FastMathFlags ()=default
 
bool any () const
 
bool none () const
 
bool all () const
 
void clear ()
 
void set ()
 
bool allowReassoc () const
 Flag queries. More...
 
bool noNaNs () const
 
bool noInfs () const
 
bool noSignedZeros () const
 
bool allowReciprocal () const
 
bool allowContract () const
 
bool approxFunc () const
 
bool isFast () const
 'Fast' means all bits are set. More...
 
void setAllowReassoc (bool B=true)
 Flag setters. More...
 
void setNoNaNs (bool B=true)
 
void setNoInfs (bool B=true)
 
void setNoSignedZeros (bool B=true)
 
void setAllowReciprocal (bool B=true)
 
void setAllowContract (bool B=true)
 
void setApproxFunc (bool B=true)
 
void setFast (bool B=true)
 
void operator&= (const FastMathFlags &OtherFlags)
 
void operator|= (const FastMathFlags &OtherFlags)
 
bool operator!= (const FastMathFlags &OtherFlags) const
 

Static Public Member Functions

static FastMathFlags getFast ()
 

Friends

class FPMathOperator
 

Detailed Description

Convenience struct for specifying and reasoning about fast-math flags.

Definition at line 161 of file Operator.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum
Enumerator
AllowReassoc 
NoNaNs 
NoInfs 
NoSignedZeros 
AllowReciprocal 
AllowContract 
ApproxFunc 

Definition at line 180 of file Operator.h.

Constructor & Destructor Documentation

◆ FastMathFlags()

llvm::FastMathFlags::FastMathFlags ( )
default

Member Function Documentation

◆ all()

bool llvm::FastMathFlags::all ( ) const
inline

Definition at line 200 of file Operator.h.

Referenced by isFast().

◆ allowContract()

bool llvm::FastMathFlags::allowContract ( ) const
inline

Definition at line 211 of file Operator.h.

References AllowContract.

Referenced by llvm::MachineInstr::copyFlagsFromInstruction(), and instCombineSVEVectorFMLA().

◆ allowReassoc()

bool llvm::FastMathFlags::allowReassoc ( ) const
inline

◆ allowReciprocal()

bool llvm::FastMathFlags::allowReciprocal ( ) const
inline

Definition at line 210 of file Operator.h.

References AllowReciprocal.

Referenced by llvm::MachineInstr::copyFlagsFromInstruction().

◆ any()

bool llvm::FastMathFlags::any ( ) const
inline

Definition at line 198 of file Operator.h.

◆ approxFunc()

bool llvm::FastMathFlags::approxFunc ( ) const
inline

Definition at line 212 of file Operator.h.

References ApproxFunc.

Referenced by llvm::MachineInstr::copyFlagsFromInstruction().

◆ clear()

void llvm::FastMathFlags::clear ( )
inline

Definition at line 202 of file Operator.h.

Referenced by llvm::IRBuilderBase::clearFastMathFlags(), and setFast().

◆ getFast()

static FastMathFlags llvm::FastMathFlags::getFast ( )
inlinestatic

Definition at line 192 of file Operator.h.

References setFast().

◆ isFast()

bool llvm::FastMathFlags::isFast ( ) const
inline

'Fast' means all bits are set.

Definition at line 214 of file Operator.h.

References all().

◆ noInfs()

bool llvm::FastMathFlags::noInfs ( ) const
inline

Definition at line 208 of file Operator.h.

References NoInfs.

Referenced by llvm::MachineInstr::copyFlagsFromInstruction(), foldFNegIntoConstant(), and simplifyFPOp().

◆ noNaNs()

bool llvm::FastMathFlags::noNaNs ( ) const
inline

◆ none()

bool llvm::FastMathFlags::none ( ) const
inline

Definition at line 199 of file Operator.h.

◆ noSignedZeros()

bool llvm::FastMathFlags::noSignedZeros ( ) const
inline

◆ operator!=()

bool llvm::FastMathFlags::operator!= ( const FastMathFlags OtherFlags) const
inline

Definition at line 246 of file Operator.h.

◆ operator&=()

void llvm::FastMathFlags::operator&= ( const FastMathFlags OtherFlags)
inline

Definition at line 240 of file Operator.h.

◆ operator|=()

void llvm::FastMathFlags::operator|= ( const FastMathFlags OtherFlags)
inline

Definition at line 243 of file Operator.h.

◆ set()

void llvm::FastMathFlags::set ( )
inline

Definition at line 203 of file Operator.h.

Referenced by setFast().

◆ setAllowContract()

void llvm::FastMathFlags::setAllowContract ( bool  B = true)
inline

Definition at line 232 of file Operator.h.

References AllowContract, and B.

Referenced by getDecodedFastMathFlags().

◆ setAllowReassoc()

void llvm::FastMathFlags::setAllowReassoc ( bool  B = true)
inline

Flag setters.

Definition at line 217 of file Operator.h.

References AllowReassoc, and B.

Referenced by getDecodedFastMathFlags().

◆ setAllowReciprocal()

void llvm::FastMathFlags::setAllowReciprocal ( bool  B = true)
inline

Definition at line 229 of file Operator.h.

References AllowReciprocal, and B.

Referenced by getDecodedFastMathFlags().

◆ setApproxFunc()

void llvm::FastMathFlags::setApproxFunc ( bool  B = true)
inline

Definition at line 235 of file Operator.h.

References ApproxFunc, and B.

Referenced by getDecodedFastMathFlags().

◆ setFast()

void llvm::FastMathFlags::setFast ( bool  B = true)
inline

Definition at line 238 of file Operator.h.

References B, clear(), and set().

Referenced by getDecodedFastMathFlags(), and getFast().

◆ setNoInfs()

void llvm::FastMathFlags::setNoInfs ( bool  B = true)
inline

Definition at line 223 of file Operator.h.

References B, and NoInfs.

Referenced by getDecodedFastMathFlags().

◆ setNoNaNs()

void llvm::FastMathFlags::setNoNaNs ( bool  B = true)
inline

Definition at line 220 of file Operator.h.

References B, and NoNaNs.

Referenced by getDecodedFastMathFlags(), and llvm::RecurrenceDescriptor::isReductionPHI().

◆ setNoSignedZeros()

void llvm::FastMathFlags::setNoSignedZeros ( bool  B = true)
inline

Friends And Related Function Documentation

◆ FPMathOperator

friend class FPMathOperator
friend

Definition at line 163 of file Operator.h.


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