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.

NOTE: This type is serialized into the AST format (e.g. for defaulted functions). When adding a new field here or in FPOptions, ensure that the AST VERSION_MAJOR is bumped if it changes the layout or size.

Definition at line 1002 of file LangOptions.h.

Member Typedef Documentation

RoundingMode

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

Definition at line 1007 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 1011 of file LangOptions.h.

Constructor & Destructor Documentation

FPOptionsOverride() [1/4]

clang::FPOptionsOverride::FPOptionsOverride ( )

inline

Definition at line 1020 of file LangOptions.h.

Referenced by getFromOpaqueInt(), operator!=(), and operator==().

FPOptionsOverride() [2/4]

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

inline

Definition at line 1021 of file LangOptions.h.

References OverrideMaskBits.

FPOptionsOverride() [3/4]

clang::FPOptionsOverride::FPOptionsOverride ( FPOptions FPO )

inline

Definition at line 1023 of file LangOptions.h.

References OverrideMaskBits.

FPOptionsOverride() [4/4]

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

inline

Definition at line 1025 of file LangOptions.h.

Member Function Documentation

applyOverrides() [1/2]

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

inline

Definition at line 1079 of file LangOptions.h.

References applyOverrides().

applyOverrides() [2/2]

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

inline

Definition at line 1072 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::BinaryOperator::getFPFeaturesInEffect(), clang::CallExpr::getFPFeaturesInEffect(), clang::CastExpr::getFPFeaturesInEffect(), clang::ConvertVectorExpr::getFPFeaturesInEffect(), clang::UnaryOperator::getFPFeaturesInEffect(), clang::ASTReader::InitializeSema(), and clang::Sema::setExceptionMode().

dump()

LLVM_DUMP_METHOD void FPOptionsOverride::dump

(

)

Definition at line 260 of file LangOptions.cpp.

getAsOpaqueInt()

storage_type clang::FPOptionsOverride::getAsOpaqueInt ( ) const

inline

Definition at line 1060 of file LangOptions.h.

References clang::FPOptions::StorageBitSize.

getFromOpaqueInt()

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

inlinestatic

Definition at line 1065 of file LangOptions.h.

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

Referenced by clang::ASTReader::InitializeSema(), and clang::ASTDeclReader::VisitFunctionDecl().

operator!=()

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

inline

Definition at line 1086 of file LangOptions.h.

References FPOptionsOverride().

operator==()

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

inline

Definition at line 1083 of file LangOptions.h.

References FPOptionsOverride().

requiresTrailingStorage()

bool clang::FPOptionsOverride::requiresTrailingStorage ( ) const

inline

Definition at line 1028 of file LangOptions.h.

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

setAllowFPContractAcrossStatement()

void clang::FPOptionsOverride::setAllowFPContractAcrossStatement ( )

inline

Definition at line 1034 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 1030 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 1038 of file LangOptions.h.

References clang::LangOptionsBase::FPM_Off.

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

setDisallowOptimizations()

void clang::FPOptionsOverride::setDisallowOptimizations ( )

inline

Definition at line 1058 of file LangOptions.h.

References setFPPreciseEnabled().

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

setFPPreciseEnabled()

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

inline

Definition at line 1042 of file LangOptions.h.

References setAllowFPContractAcrossStatement(), and setAllowFPContractWithinStatement().

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

Member Data Documentation

OverrideMaskBits

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 1017 of file LangOptions.h.

Referenced by FPOptionsOverride(), FPOptionsOverride(), and getFromOpaqueInt().

---

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

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