clang::FPOptionsOverride Class Reference

Represents difference between two FPOptions values. More...

#include "clang/Basic/LangOptions.h"

Public Types
using	RoundingMode = llvm::RoundingMode
using	storage_type = uint64_t
	The type suitable for storing values of FPOptionsOverride.

Public Member Functions
	FPOptionsOverride ()
	FPOptionsOverride (const LangOptions &LO)
	FPOptionsOverride (FPOptions FPO)
	FPOptionsOverride (FPOptions FPO, FPOptions::storage_type Mask)
bool	requiresTrailingStorage () const
void	setAllowFPContractWithinStatement ()
void	setAllowFPContractAcrossStatement ()
void	setDisallowFPContract ()
void	setFPPreciseEnabled (bool Value)
void	setDisallowOptimizations ()
storage_type	getAsOpaqueInt () const
FPOptions	applyOverrides (FPOptions Base)
FPOptions	applyOverrides (const LangOptions &LO)
bool	operator== (FPOptionsOverride other) const
bool	operator!= (FPOptionsOverride other) const
LLVM_DUMP_METHOD void	dump ()

Static Public Member Functions
static FPOptionsOverride	getFromOpaqueInt (storage_type I)

Static Public Attributes
static constexpr storage_type	OverrideMaskBits
	Bit mask selecting bits of OverrideMask in serialized representation of FPOptionsOverride.

Detailed Description

Represents difference between two FPOptions values.

The effect of language constructs changing the set of floating point options is usually a change of some FP properties while leaving others intact. This class describes such changes by keeping information about what FP options are overridden.

The integral set of FP options, described by the class FPOptions, may be represented as a default FP option set, defined by language standard and command line options, with the overrides introduced by pragmas.

The is implemented as a value of the new FPOptions plus a mask showing which fields are actually set in it.

Definition at line 978 of file LangOptions.h.

Member Typedef Documentation

RoundingMode

using clang::FPOptionsOverride::RoundingMode = llvm::RoundingMode

Definition at line 983 of file LangOptions.h.

storage_type

using clang::FPOptionsOverride::storage_type = uint64_t

The type suitable for storing values of FPOptionsOverride.

Must be twice as wide as bit size of FPOption.

Definition at line 987 of file LangOptions.h.

Constructor & Destructor Documentation

FPOptionsOverride() [1/4]

clang::FPOptionsOverride::FPOptionsOverride ( )

inline

Definition at line 996 of file LangOptions.h.

FPOptionsOverride() [2/4]

clang::FPOptionsOverride::FPOptionsOverride ( const LangOptions &  LO )

inline

Definition at line 997 of file LangOptions.h.

FPOptionsOverride() [3/4]

clang::FPOptionsOverride::FPOptionsOverride ( FPOptions  FPO )

inline

Definition at line 999 of file LangOptions.h.

FPOptionsOverride() [4/4]

clang::FPOptionsOverride::FPOptionsOverride ( FPOptions  FPO, FPOptions::storage_type  Mask  )

inline

Definition at line 1001 of file LangOptions.h.

Member Function Documentation

applyOverrides() [1/2]

FPOptions clang::FPOptionsOverride::applyOverrides ( const LangOptions &  LO )

inline

Definition at line 1055 of file LangOptions.h.

References applyOverrides().

applyOverrides() [2/2]

FPOptions clang::FPOptionsOverride::applyOverrides ( FPOptions  Base )

inline

Definition at line 1048 of file LangOptions.h.

References clang::FPOptions::getFromOpaqueInt(), and clang::Result.

Referenced by clang::Sema::ActOnPragmaCXLimitedRange(), clang::Sema::ActOnPragmaFEnvAccess(), clang::Sema::ActOnPragmaFEnvRound(), clang::Sema::ActOnPragmaFloatControl(), clang::Sema::ActOnPragmaFPContract(), clang::Sema::ActOnPragmaFPEvalMethod(), clang::Sema::ActOnPragmaFPValueChangingOption(), clang::FPOptions::applyChanges(), applyOverrides(), clang::UnaryOperator::getFPFeaturesInEffect(), clang::CallExpr::getFPFeaturesInEffect(), clang::CastExpr::getFPFeaturesInEffect(), clang::BinaryOperator::getFPFeaturesInEffect(), clang::ASTReader::InitializeSema(), and clang::Sema::setExceptionMode().

dump()

LLVM_DUMP_METHOD void FPOptionsOverride::dump

(

)

Definition at line 236 of file LangOptions.cpp.

getAsOpaqueInt()

storage_type clang::FPOptionsOverride::getAsOpaqueInt ( ) const

inline

Definition at line 1036 of file LangOptions.h.

References clang::FPOptions::StorageBitSize.

getFromOpaqueInt()

static FPOptionsOverride clang::FPOptionsOverride::getFromOpaqueInt ( storage_type  I )

inlinestatic

Definition at line 1041 of file LangOptions.h.

References clang::FPOptions::getFromOpaqueInt(), OverrideMaskBits, and clang::FPOptions::StorageBitSize.

Referenced by clang::ASTReader::InitializeSema().

operator!=()

bool clang::FPOptionsOverride::operator!= ( FPOptionsOverride  other ) const

inline

Definition at line 1062 of file LangOptions.h.

operator==()

bool clang::FPOptionsOverride::operator== ( FPOptionsOverride  other ) const

inline

Definition at line 1059 of file LangOptions.h.

requiresTrailingStorage()

bool clang::FPOptionsOverride::requiresTrailingStorage ( ) const

inline

Definition at line 1004 of file LangOptions.h.

Referenced by clang::BinaryOperator::BinaryOperator(), clang::CallExpr::CallExpr(), clang::CompoundStmt::Create(), clang::UnaryOperator::Create(), clang::BinaryOperator::Create(), clang::CompoundAssignOperator::Create(), clang::ImplicitCastExpr::Create(), clang::CStyleCastExpr::Create(), clang::CXXStaticCastExpr::Create(), clang::CXXFunctionalCastExpr::Create(), clang::UserDefinedLiteral::Create(), clang::CXXMemberCallExpr::Create(), clang::CallExpr::Create(), clang::CUDAKernelCallExpr::Create(), clang::CXXOperatorCallExpr::Create(), and clang::UnaryOperator::UnaryOperator().

setAllowFPContractAcrossStatement()

void clang::FPOptionsOverride::setAllowFPContractAcrossStatement ( )

inline

Definition at line 1010 of file LangOptions.h.

References clang::LangOptionsBase::FPM_Fast.

Referenced by clang::Sema::ActOnPragmaFPContract(), and setFPPreciseEnabled().

setAllowFPContractWithinStatement()

void clang::FPOptionsOverride::setAllowFPContractWithinStatement ( )

inline

Definition at line 1006 of file LangOptions.h.

References clang::LangOptionsBase::FPM_On.

Referenced by clang::Sema::ActOnPragmaFPContract(), and setFPPreciseEnabled().

setDisallowFPContract()

void clang::FPOptionsOverride::setDisallowFPContract ( )

inline

Definition at line 1014 of file LangOptions.h.

References clang::LangOptionsBase::FPM_Off.

Referenced by clang::Sema::ActOnPragmaFPContract().

setDisallowOptimizations()

void clang::FPOptionsOverride::setDisallowOptimizations ( )

inline

Definition at line 1034 of file LangOptions.h.

References setFPPreciseEnabled().

Referenced by clang::Sema::applyFunctionAttributesBeforeParsingBody().

setFPPreciseEnabled()

void clang::FPOptionsOverride::setFPPreciseEnabled ( bool  Value )

inline

Definition at line 1018 of file LangOptions.h.

References setAllowFPContractAcrossStatement(), and setAllowFPContractWithinStatement().

Referenced by clang::Sema::ActOnPragmaFloatControl(), and setDisallowOptimizations().

Member Data Documentation

OverrideMaskBits

constexpr storage_type clang::FPOptionsOverride::OverrideMaskBits

staticconstexpr

Initial value:

=
      (static_cast<storage_type>(1) << FPOptions::StorageBitSize) - 1

Bit mask selecting bits of OverrideMask in serialized representation of FPOptionsOverride.

Definition at line 993 of file LangOptions.h.

Referenced by getFromOpaqueInt().

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

• include/clang/Basic/LangOptions.h
• lib/Basic/LangOptions.cpp