llvm::bitfields_details::Impl< Bitfield, StorageType > Struct Template Reference

Impl is where Bifield description and Storage are put together to interact with values. More...

#include "llvm/ADT/Bitfields.h"

Public Types
using	IntegerType = typename Bitfield::IntegerType
using	C = Compressor<IntegerType, Bitfield::Bits>
using	BP = BitPatterns<StorageType, Bitfield::Bits>

Static Public Member Functions
static void	update (StorageType &Packed, IntegerType UserValue)
	Checks UserValue is within bounds and packs it between FirstBit and LastBit of Packed leaving the rest unchanged.
static IntegerType	extract (StorageType Packed)
	Interprets bits between FirstBit and LastBit of Packed as anIntegerType.
static StorageType	test (StorageType Packed)
	Interprets bits between FirstBit and LastBit of Packed as anIntegerType.

Static Public Attributes
static constexpr size_t	StorageBits = sizeof(StorageType) * CHAR_BIT
static constexpr StorageType	Mask = BP::Umax << Bitfield::Shift

Detailed Description

template<typename Bitfield, typename StorageType>
struct llvm::bitfields_details::Impl< Bitfield, StorageType >

Impl is where Bifield description and Storage are put together to interact with values.

Definition at line 156 of file Bitfields.h.

Member Typedef Documentation

BP

template<typename Bitfield, typename StorageType>

using llvm::bitfields_details::Impl< Bitfield, StorageType >::BP = BitPatterns<StorageType, Bitfield::Bits>

Definition at line 161 of file Bitfields.h.

C

template<typename Bitfield, typename StorageType>

using llvm::bitfields_details::Impl< Bitfield, StorageType >::C = Compressor<IntegerType, Bitfield::Bits>

Definition at line 160 of file Bitfields.h.

IntegerType

template<typename Bitfield, typename StorageType>

using llvm::bitfields_details::Impl< Bitfield, StorageType >::IntegerType = typename Bitfield::IntegerType

Definition at line 159 of file Bitfields.h.

Member Function Documentation

extract()

template<typename Bitfield, typename StorageType>

IntegerType llvm::bitfields_details::Impl< Bitfield, StorageType >::extract ( StorageType Packed )

inlinestatic

Interprets bits between FirstBit and LastBit of Packed as anIntegerType.

Definition at line 178 of file Bitfields.h.

References Mask, and llvm::bitfields_details::Compressor< IntegerType, Bitfield::Bits >::unpack().

test()

template<typename Bitfield, typename StorageType>

StorageType llvm::bitfields_details::Impl< Bitfield, StorageType >::test ( StorageType Packed )

inlinestatic

Interprets bits between FirstBit and LastBit of Packed as anIntegerType.

Definition at line 185 of file Bitfields.h.

References Mask.

update()

template<typename Bitfield, typename StorageType>

void llvm::bitfields_details::Impl< Bitfield, StorageType >::update ( StorageType & Packed, IntegerType UserValue )

inlinestatic

Checks UserValue is within bounds and packs it between FirstBit and LastBit of Packed leaving the rest unchanged.

Definition at line 170 of file Bitfields.h.

References Mask, and llvm::bitfields_details::Compressor< IntegerType, Bitfield::Bits >::pack().

Member Data Documentation

Mask

template<typename Bitfield, typename StorageType>

StorageType llvm::bitfields_details::Impl< Bitfield, StorageType >::Mask = BP::Umax << Bitfield::Shift

staticconstexpr

Definition at line 166 of file Bitfields.h.

Referenced by extract(), test(), and update().

StorageBits

template<typename Bitfield, typename StorageType>

size_t llvm::bitfields_details::Impl< Bitfield, StorageType >::StorageBits = sizeof(StorageType) * CHAR_BIT

staticconstexpr

Definition at line 163 of file Bitfields.h.

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

• include/llvm/ADT/Bitfields.h