llvm::FeatureBitset Class Reference

Container class for subtarget features. More...

#include "llvm/TargetParser/SubtargetFeature.h"

Inheritance diagram for llvm::FeatureBitset:

Classes
class	const_iterator
	Yields the index of each set bit, skipping unset bits via countr_zero. More...

Public Member Functions
constexpr	FeatureBitset ()=default
constexpr	FeatureBitset (std::initializer_list< unsigned > Init)
FeatureBitset &	set ()
constexpr FeatureBitset &	set (unsigned I)
constexpr FeatureBitset &	reset (unsigned I)
constexpr FeatureBitset &	flip (unsigned I)
constexpr bool	operator[] (unsigned I) const
constexpr bool	test (unsigned I) const
constexpr size_t	size () const
unsigned	find_first_from (unsigned Begin) const
	Index of the first set bit at or after Begin, or size() if none.
const_iterator	begin () const
const_iterator	end () const
bool	any () const
bool	none () const
size_t	count () const
constexpr FeatureBitset &	operator^= (const FeatureBitset &RHS)
constexpr FeatureBitset	operator^ (const FeatureBitset &RHS) const
constexpr FeatureBitset &	operator&= (const FeatureBitset &RHS)
constexpr FeatureBitset	operator& (const FeatureBitset &RHS) const
constexpr FeatureBitset &	operator|= (const FeatureBitset &RHS)
constexpr FeatureBitset	operator| (const FeatureBitset &RHS) const
constexpr FeatureBitset	operator~ () const
bool	operator== (const FeatureBitset &RHS) const
bool	operator!= (const FeatureBitset &RHS) const
bool	operator< (const FeatureBitset &Other) const

Protected Member Functions
constexpr	FeatureBitset (const std::array< uint64_t, MAX_SUBTARGET_WORDS > &B)

Detailed Description

Container class for subtarget features.

This is a constexpr reimplementation of a subset of std::bitset. It would be nice to use std::bitset directly, but it doesn't support constant initialization.

Definition at line 43 of file SubtargetFeature.h.

Constructor & Destructor Documentation

FeatureBitset() [1/3]

llvm::FeatureBitset::FeatureBitset ( const std::array< uint64_t, MAX_SUBTARGET_WORDS > & B )

inlineconstexprprotected

Definition at line 49 of file SubtargetFeature.h.

References B().

Referenced by llvm::FeatureBitset::const_iterator::const_iterator(), llvm::FeatureBitArray::FeatureBitArray(), flip(), llvm::FeatureBitArray::getAsBitset(), operator!=(), operator&(), operator&=(), operator<(), operator==(), operator^(), operator^=(), operator|(), operator|=(), operator~(), reset(), set(), and set().

FeatureBitset() [2/3]

llvm::FeatureBitset::FeatureBitset ( )

constexprdefault

FeatureBitset() [3/3]

llvm::FeatureBitset::FeatureBitset ( std::initializer_list< unsigned > Init )

inlineconstexpr

Definition at line 54 of file SubtargetFeature.h.

References I, and set().

Member Function Documentation

any()

bool llvm::FeatureBitset::any ( ) const

inline

Definition at line 127 of file SubtargetFeature.h.

References llvm::any_of(), and I.

Referenced by getImpliedEnabledFeatures(), none(), and SetImpliedBits().

begin()

const_iterator llvm::FeatureBitset::begin ( ) const

inline

Definition at line 122 of file SubtargetFeature.h.

References find_first_from().

count()

size_t llvm::FeatureBitset::count ( ) const

inline

Definition at line 131 of file SubtargetFeature.h.

References B(), llvm::Count, and llvm::popcount().

end()

const_iterator llvm::FeatureBitset::end ( ) const

inline

Definition at line 125 of file SubtargetFeature.h.

References size().

find_first_from()

unsigned llvm::FeatureBitset::find_first_from ( unsigned Begin ) const

inline

Index of the first set bit at or after Begin, or size() if none.

Definition at line 89 of file SubtargetFeature.h.

References llvm::countr_zero(), llvm::Masked, llvm::maskTrailingZeros(), and size().

Referenced by begin().

flip()

FeatureBitset & llvm::FeatureBitset::flip ( unsigned I )

inlineconstexpr

Definition at line 74 of file SubtargetFeature.h.

References FeatureBitset(), and I.

Referenced by llvm::MCSubtargetInfo::ToggleFeature().

none()

bool llvm::FeatureBitset::none ( ) const

inline

Definition at line 130 of file SubtargetFeature.h.

References any().

Referenced by createAMDGPUMCSubtargetInfo().

operator!=()

bool llvm::FeatureBitset::operator!= ( const FeatureBitset & RHS ) const

inline

Definition at line 184 of file SubtargetFeature.h.

References FeatureBitset(), and RHS.

operator&()

FeatureBitset llvm::FeatureBitset::operator& ( const FeatureBitset & RHS ) const

inlineconstexpr

Definition at line 155 of file SubtargetFeature.h.

References FeatureBitset(), and RHS.

operator&=()

FeatureBitset & llvm::FeatureBitset::operator&= ( const FeatureBitset & RHS )

inlineconstexpr

Definition at line 150 of file SubtargetFeature.h.

References E(), FeatureBitset(), I, and RHS.

operator<()

bool llvm::FeatureBitset::operator< ( const FeatureBitset & Other ) const

inline

Definition at line 186 of file SubtargetFeature.h.

References E(), FeatureBitset(), I, LHS, llvm::Other, RHS, size(), and test.

operator==()

bool llvm::FeatureBitset::operator== ( const FeatureBitset & RHS ) const

inline

Definition at line 180 of file SubtargetFeature.h.

References FeatureBitset(), and RHS.

operator[]()

bool llvm::FeatureBitset::operator[] ( unsigned I ) const

inlineconstexpr

Definition at line 79 of file SubtargetFeature.h.

References I.

operator^()

FeatureBitset llvm::FeatureBitset::operator^ ( const FeatureBitset & RHS ) const

inlineconstexpr

Definition at line 144 of file SubtargetFeature.h.

References FeatureBitset(), and RHS.

operator^=()

FeatureBitset & llvm::FeatureBitset::operator^= ( const FeatureBitset & RHS )

inlineconstexpr

Definition at line 138 of file SubtargetFeature.h.

References E(), FeatureBitset(), I, and RHS.

operator|()

FeatureBitset llvm::FeatureBitset::operator| ( const FeatureBitset & RHS ) const

inlineconstexpr

Definition at line 167 of file SubtargetFeature.h.

References FeatureBitset(), and RHS.

operator|=()

FeatureBitset & llvm::FeatureBitset::operator|= ( const FeatureBitset & RHS )

inlineconstexpr

Definition at line 161 of file SubtargetFeature.h.

References E(), FeatureBitset(), I, and RHS.

operator~()

FeatureBitset llvm::FeatureBitset::operator~ ( ) const

inlineconstexpr

Definition at line 173 of file SubtargetFeature.h.

References B(), and FeatureBitset().

reset()

FeatureBitset & llvm::FeatureBitset::reset ( unsigned I )

inlineconstexpr

Definition at line 69 of file SubtargetFeature.h.

References FeatureBitset(), and I.

Referenced by llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), and llvm::HexagonSubtarget::initializeSubtargetDependencies().

set() [1/2]

FeatureBitset & llvm::FeatureBitset::set ( )

inline

Definition at line 59 of file SubtargetFeature.h.

References FeatureBitset(), and llvm::fill().

Referenced by llvm::Hexagon_MC::completeHVXFeatures(), llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), createRISCVMCSubtargetInfo(), createSparcMCSubtargetInfo(), FeatureBitset(), and llvm::SparcSubtarget::initializeSubtargetDependencies().

set() [2/2]

FeatureBitset & llvm::FeatureBitset::set ( unsigned I )

inlineconstexpr

Definition at line 64 of file SubtargetFeature.h.

References FeatureBitset(), and I.

size()

size_t llvm::FeatureBitset::size ( ) const

inlineconstexpr

Definition at line 86 of file SubtargetFeature.h.

References llvm::MAX_SUBTARGET_FEATURES.

Referenced by llvm::MCSubtargetInfo::ClearFeatureBitsTransitively(), end(), find_first_from(), and operator<().

test()

bool llvm::FeatureBitset::test ( unsigned I ) const

inlineconstexpr

Definition at line 84 of file SubtargetFeature.h.

References I.

Referenced by llvm::Hexagon_MC::completeHVXFeatures(), llvm::AMDGPU::createAMDGPUTargetID(), llvm::AMDGPU::IsaInfo::getAddressableLocalMemorySize(), llvm::AMDGPU::IsaInfo::getAddressableNumArchVGPRs(), llvm::AMDGPU::IsaInfo::getAddressableNumSGPRs(), llvm::Hexagon_MC::getArchVersion(), llvm::AMDGPU::MCKernelDescriptor::getDefaultAmdhsaKernelDescriptor(), llvm::AMDGPU::IsaInfo::getEUsPerCU(), llvm::Hexagon_MC::getHVXVersion(), llvm::AMDGPU::IsaInfo::getInstCacheLineSize(), llvm::AMDGPU::IsaInfo::getLocalMemorySize(), llvm::AMDGPU::IsaInfo::getMaxWorkGroupsPerCU(), llvm::AMDGPU::IsaInfo::getNumExtraSGPRs(), llvm::AMDGPU::IsaInfo::getNumExtraSGPRs(), llvm::AMDGPU::IsaInfo::getSGPRTrapHandlerReserve(), llvm::AMDGPU::IsaInfo::getTotalNumVGPRs(), llvm::AMDGPU::IsaInfo::getVGPRAllocGranule(), llvm::AMDGPU::IsaInfo::getVGPREncodingGranule(), llvm::AMDGPU::IsaInfo::getWavefrontSize(), hasFeature(), llvm::AMDGPU::initDefaultAMDKernelCodeT(), matchAliasCondition(), SetImpliedBits(), and setImpliedBits().

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

• include/llvm/TargetParser/SubtargetFeature.h