Metadata.cpp File Reference (original) (raw)

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Macros
#define	HANDLE_METADATA_LEAF(CLASS)

#define	HANDLE_MDNODE_LEAF(CLASS)

#define	HANDLE_MDNODE_LEAF(CLASS)

#define	HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)

#define	HANDLE_MDNODE_LEAF(CLASS)

#define	HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)

#define	HANDLE_MDNODE_LEAF_UNIQUABLE(CLASS)

#define	HANDLE_MDNODE_LEAF(CLASS)

Functions
static Metadata *	canonicalizeMetadataForValue (LLVMContext &Context, Metadata *MD)
	Canonicalize metadata arguments to intrinsics.

static DISubprogram *	getLocalFunctionMetadata (Value *V)

static bool	isOperandUnresolved (Metadata *Op)

static bool	hasSelfReference (MDNode *N)

template<class T , class InfoT >
static T *	uniquifyImpl (T N, DenseSet< T , InfoT > &Store)

static MDNode *	getOrSelfReference (LLVMContext &Context, ArrayRef< Metadata * > Ops)
	Get a node or a self-reference that looks like it.

static bool	isContiguous (const ConstantRange &A, const ConstantRange &B)

static bool	canBeMerged (const ConstantRange &A, const ConstantRange &B)

static bool	tryMergeRange (SmallVectorImpl< ConstantInt * > &EndPoints, ConstantInt Low, ConstantInt High)

static void	addRange (SmallVectorImpl< ConstantInt * > &EndPoints, ConstantInt Low, ConstantInt High)

static SmallVector< TrackingMDRef, 4 > &	getNMDOps (void *Operands)

◆ HANDLE_MDNODE_LEAF [1/4]

| #define HANDLE_MDNODE_LEAF | ( | | CLASS | ) | | ---------------------------- | - | | ----- | - |

Value:

static_assert( \

alignof(uint64_t) >= alignof(CLASS), \

"Alignment is insufficient after objects prepended to " #CLASS);

Definition at line 627 of file Metadata.cpp.

◆ HANDLE_MDNODE_LEAF [2/4]

| #define HANDLE_MDNODE_LEAF | ( | | CLASS | ) | | ---------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: \

return cast(this)->cloneImpl();

Definition at line 627 of file Metadata.cpp.

◆ HANDLE_MDNODE_LEAF [3/4]

| #define HANDLE_MDNODE_LEAF | ( | | CLASS | ) | | ---------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: \

delete cast(this); \

break;

Definition at line 627 of file Metadata.cpp.

◆ HANDLE_MDNODE_LEAF [4/4]

| #define HANDLE_MDNODE_LEAF | ( | | CLASS | ) | | ---------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: { \

std::integral_constant<bool, HasCachedHash::value> ShouldResetHash; \

dispatchResetHash(cast(this), ShouldResetHash); \

break; \

}

Definition at line 627 of file Metadata.cpp.

◆ HANDLE_MDNODE_LEAF_UNIQUABLE [1/3]

| #define HANDLE_MDNODE_LEAF_UNIQUABLE | ( | | CLASS | ) | | --------------------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: \

break;

◆ HANDLE_MDNODE_LEAF_UNIQUABLE [2/3]

| #define HANDLE_MDNODE_LEAF_UNIQUABLE | ( | | CLASS | ) | | --------------------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: { \

CLASS *SubclassThis = cast(this); \

std::integral_constant<bool, HasCachedHash::value> \

ShouldRecalculateHash; \

dispatchRecalculateHash(SubclassThis, ShouldRecalculateHash); \

return uniquifyImpl(SubclassThis, getContext().pImpl->CLASS##s); \

}

◆ HANDLE_MDNODE_LEAF_UNIQUABLE [3/3]

| #define HANDLE_MDNODE_LEAF_UNIQUABLE | ( | | CLASS | ) | | --------------------------------------- | - | | ----- | - |

Value:

case CLASS##Kind: \

getContext().pImpl->CLASS##s.erase(cast(this)); \

break;

◆ HANDLE_METADATA_LEAF

| #define HANDLE_METADATA_LEAF | ( | | CLASS | ) | | ------------------------------ | - | | ----- | - |

Value:

case Metadata::CLASS##Kind: \

cast(OwnerMD)->handleChangedOperand(Pair.first, MD); \

continue;

◆ addRange()

◆ canBeMerged()

◆ canonicalizeMetadataForValue()

Canonicalize metadata arguments to intrinsics.

To support bitcode upgrades (and assembly semantic sugar) for MetadataAsValue, we need to canonicalize certain metadata.

nullptr is replaced by an empty MDNode.
An MDNode with a single null operand is replaced by an empty MDNode.
An MDNode whose only operand is a ConstantAsMetadata gets skipped.

This maintains readability of bitcode from when metadata was a type of value, and these bridges were unnecessary.

Definition at line 81 of file Metadata.cpp.

References llvm::CallingConv::C, llvm::MDNode::get(), and N.

Referenced by llvm::MetadataAsValue::get(), and llvm::MetadataAsValue::getIfExists().

◆ getLocalFunctionMetadata()

◆ getNMDOps()

◆ getOrSelfReference()

◆ hasSelfReference()

◆ isContiguous()

◆ isOperandUnresolved()

◆ tryMergeRange()

◆ uniquifyImpl()

template<class T , class InfoT >

static T * uniquifyImpl ( T * N, DenseSet< T , InfoT > & Store* )	static