This is an SDNode representing atomic operations. More...

#include "llvm/CodeGen/SelectionDAGNodes.h"

Inheritance diagram for llvm::AtomicSDNode:

[legend]

Public Member Functions
	AtomicSDNode (unsigned Opc, unsigned Order, const DebugLoc &dl, SDVTList VTL, EVT MemVT, MachineMemOperand *MMO)

void	setExtensionType (ISD::LoadExtType ETy)

ISD::LoadExtType	getExtensionType () const

const SDValue &	getBasePtr () const

const SDValue &	getVal () const

bool	isCompareAndSwap () const
	Returns true if this SDNode represents cmpxchg atomic operation, false otherwise.

AtomicOrdering	getFailureOrdering () const
	For cmpxchg atomic operations, return the atomic ordering requirements when store does not occur.

Public Member Functions inherited from llvm::MemSDNode
	MemSDNode (unsigned Opc, unsigned Order, const DebugLoc &dl, SDVTList VTs, EVT memvt, MachineMemOperand *MMO)

bool	readMem () const

bool	writeMem () const

Align	getOriginalAlign () const
	Returns alignment and volatility of the memory access.

Align	getAlign () const

unsigned	getRawSubclassData () const
	Return the SubclassData value, without HasDebugValue.

bool	isVolatile () const

bool	isNonTemporal () const

bool	isDereferenceable () const

bool	isInvariant () const

int64_t	getSrcValueOffset () const

AAMDNodes	getAAInfo () const
	Returns the AA info that describes the dereference.

const MDNode *	getRanges () const
	Returns the Ranges that describes the dereference.

SyncScope::ID	getSyncScopeID () const
	Returns the synchronization scope ID for this memory operation.

AtomicOrdering	getSuccessOrdering () const
	Return the atomic ordering requirements for this memory operation.

AtomicOrdering	getMergedOrdering () const
	Return a single atomic ordering that is at least as strong as both the success and failure orderings for an atomic operation.

bool	isAtomic () const
	Return true if the memory operation ordering is Unordered or higher.

bool	isUnordered () const
	Returns true if the memory operation doesn't imply any ordering constraints on surrounding memory operations beyond the normal memory aliasing rules.

bool	isSimple () const
	Returns true if the memory operation is neither atomic or volatile.

EVT	getMemoryVT () const
	Return the type of the in-memory value.

MachineMemOperand *	getMemOperand () const
	Return a MachineMemOperand object describing the memory reference performed by operation.

const MachinePointerInfo &	getPointerInfo () const

unsigned	getAddressSpace () const
	Return the address space for the associated pointer.

void	refineAlignment (const MachineMemOperand *NewMMO)
	Update this MemSDNode's MachineMemOperand information to reflect the alignment of NewMMO, if it has a greater alignment.

const SDValue &	getChain () const

const SDValue &	getBasePtr () const

Public Member Functions inherited from llvm::SDNode
unsigned	getOpcode () const
	Return the SelectionDAG opcode value for this node.

bool	isTargetOpcode () const
	Test if this node has a target-specific opcode (in the <target>ISD namespace).

bool	isTargetStrictFPOpcode () const
	Test if this node has a target-specific opcode that may raise FP exceptions (in the <target>ISD namespace and greater than FIRST_TARGET_STRICTFP_OPCODE).

bool	isTargetMemoryOpcode () const
	Test if this node has a target-specific memory-referencing opcode (in the <target>ISD namespace and greater than FIRST_TARGET_MEMORY_OPCODE).

bool	isUndef () const
	Return true if the type of the node type undefined.

bool	isMemIntrinsic () const
	Test if this node is a memory intrinsic (with valid pointer information).

bool	isStrictFPOpcode ()
	Test if this node is a strict floating point pseudo-op.

bool	isVPOpcode () const
	Test if this node is a vector predication operation.

bool	isMachineOpcode () const
	Test if this node has a post-isel opcode, directly corresponding to a MachineInstr opcode.

unsigned	getMachineOpcode () const
	This may only be called if isMachineOpcode returns true.

bool	getHasDebugValue () const

void	setHasDebugValue (bool b)

bool	isDivergent () const

bool	use_empty () const
	Return true if there are no uses of this node.

bool	hasOneUse () const
	Return true if there is exactly one use of this node.

size_t	use_size () const
	Return the number of uses of this node.

int	getNodeId () const
	Return the unique node id.

void	setNodeId (int Id)
	Set unique node id.

int	getCombinerWorklistIndex () const
	Get worklist index for DAGCombiner.

void	setCombinerWorklistIndex (int Index)
	Set worklist index for DAGCombiner.

unsigned	getIROrder () const
	Return the node ordering.

void	setIROrder (unsigned Order)
	Set the node ordering.

const DebugLoc &	getDebugLoc () const
	Return the source location info.

void	setDebugLoc (DebugLoc dl)
	Set source location info.

use_iterator	use_begin () const
	Provide iteration support to walk over all uses of an SDNode.

iterator_range< use_iterator >	uses ()

iterator_range< use_iterator >	uses () const

user_iterator	user_begin () const
	Provide iteration support to walk over all users of an SDNode.

iterator_range< user_iterator >	users ()

iterator_range< user_iterator >	users () const

bool	hasNUsesOfValue (unsigned NUses, unsigned Value) const
	Return true if there are exactly NUSES uses of the indicated value.

bool	hasAnyUseOfValue (unsigned Value) const
	Return true if there are any use of the indicated value.

bool	isOnlyUserOf (const SDNode *N) const
	Return true if this node is the only use of N.

bool	isOperandOf (const SDNode *N) const
	Return true if this node is an operand of N.

bool	isPredecessorOf (const SDNode *N) const
	Return true if this node is a predecessor of N.

bool	hasPredecessor (const SDNode *N) const
	Return true if N is a predecessor of this node.

unsigned	getNumOperands () const
	Return the number of values used by this operation.

uint64_t	getConstantOperandVal (unsigned Num) const
	Helper method returns the integer value of a ConstantSDNode operand.

uint64_t	getAsZExtVal () const
	Helper method returns the zero-extended integer value of a ConstantSDNode.

const APInt &	getConstantOperandAPInt (unsigned Num) const
	Helper method returns the APInt of a ConstantSDNode operand.

const APInt &	getAsAPIntVal () const
	Helper method returns the APInt value of a ConstantSDNode.

const SDValue &	getOperand (unsigned Num) const

op_iterator	op_begin () const

op_iterator	op_end () const

ArrayRef< SDUse >	ops () const

iterator_range< value_op_iterator >	op_values () const

SDVTList	getVTList () const

SDNode *	getGluedNode () const
	If this node has a glue operand, return the node to which the glue operand points.

SDNode *	getGluedUser () const
	If this node has a glue value with a user, return the user (there is at most one).

SDNodeFlags	getFlags () const

void	setFlags (SDNodeFlags NewFlags)

void	dropFlags (unsigned Mask)

void	intersectFlagsWith (const SDNodeFlags Flags)
	Clear any flags in this node that aren't also set in Flags.

bool	hasPoisonGeneratingFlags () const

void	setCFIType (uint32_t Type)

uint32_t	getCFIType () const

unsigned	getNumValues () const
	Return the number of values defined/returned by this operator.

EVT	getValueType (unsigned ResNo) const
	Return the type of a specified result.

MVT	getSimpleValueType (unsigned ResNo) const
	Return the type of a specified result as a simple type.

TypeSize	getValueSizeInBits (unsigned ResNo) const
	Returns MVT::getSizeInBits(getValueType(ResNo)).

value_iterator	value_begin () const

value_iterator	value_end () const

iterator_range< value_iterator >	values () const

std::string	getOperationName (const SelectionDAG *G=nullptr) const
	Return the opcode of this operation for printing.

void	print_types (raw_ostream &OS, const SelectionDAG *G) const

void	print_details (raw_ostream &OS, const SelectionDAG *G) const

void	print (raw_ostream &OS, const SelectionDAG *G=nullptr) const

void	printr (raw_ostream &OS, const SelectionDAG *G=nullptr) const

void	printrFull (raw_ostream &O, const SelectionDAG *G=nullptr) const
	Print a SelectionDAG node and all children down to the leaves.

void	printrWithDepth (raw_ostream &O, const SelectionDAG *G=nullptr, unsigned depth=100) const
	Print a SelectionDAG node and children up to depth "depth." The given SelectionDAG allows target-specific nodes to be printed in human-readable form.

void	dump () const
	Dump this node, for debugging.

void	dumpr () const
	Dump (recursively) this node and its use-def subgraph.

void	dump (const SelectionDAG *G) const
	Dump this node, for debugging.

void	dumpr (const SelectionDAG *G) const
	Dump (recursively) this node and its use-def subgraph.

void	dumprFull (const SelectionDAG *G=nullptr) const
	printrFull to dbgs().

void	dumprWithDepth (const SelectionDAG *G=nullptr, unsigned depth=100) const
	printrWithDepth to dbgs().

void	Profile (FoldingSetNodeID &ID) const
	Gather unique data for the node.

void	addUse (SDUse &U)
	This method should only be used by the SDUse class.

Public Member Functions inherited from llvm::FoldingSetBase::Node
	Node ()=default

void *	getNextInBucket () const

void	SetNextInBucket (void *N)

Public Member Functions inherited from llvm::ilist_node_impl< OptionsT >
self_iterator	getIterator ()

const_self_iterator	getIterator () const

reverse_self_iterator	getReverseIterator ()

const_reverse_self_iterator	getReverseIterator () const

bool	isSentinel () const
	Check whether this is the sentinel node.

Public Member Functions inherited from llvm::ilist_detail::node_parent_access< ilist_node_impl< OptionsT >, OptionsT::parent_ty >
const OptionsT::parent_ty *	getParent () const

OptionsT::parent_ty *	getParent ()

void	setParent (OptionsT::parent_ty *Parent)

Static Public Member Functions
static bool	classof (const SDNode *N)

Static Public Member Functions inherited from llvm::MemSDNode
static bool	classof (const SDNode *N)

Static Public Member Functions inherited from llvm::SDNode
static use_iterator	use_end ()

static user_iterator	user_end ()

static bool	hasPredecessorHelper (const SDNode N, SmallPtrSetImpl< const SDNode > &Visited, SmallVectorImpl< const SDNode * > &Worklist, unsigned int MaxSteps=0, bool TopologicalPrune=false)
	Returns true if N is a predecessor of any node in Worklist.

static bool	areOnlyUsersOf (ArrayRef< const SDNode * > Nodes, const SDNode *N)
	Return true if all the users of N are contained in Nodes.

static constexpr size_t	getMaxNumOperands ()
	Return the maximum number of operands that a SDNode can hold.

static const char *	getIndexedModeName (ISD::MemIndexedMode AM)

Additional Inherited Members
Public Types inherited from llvm::SDNode
using	op_iterator = SDUse *

using	value_iterator = const EVT *

Public Attributes inherited from llvm::SDNode
uint16_t	PersistentId = 0xffff
	Unique and persistent id per SDNode in the DAG.

Protected Types inherited from llvm::SDNode
enum	{ NumSDNodeBits = 3 }

enum	{ NumMemSDNodeBits = NumSDNodeBits + 4 }

enum	{ NumLSBaseSDNodeBits = NumMemSDNodeBits + 3 }

Protected Types inherited from llvm::ilist_node_impl< OptionsT >
using	self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, false, false >::type

using	const_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, false, true >::type

using	reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, true, false >::type

using	const_reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, true, true >::type

Protected Member Functions inherited from llvm::SDNode
	SDNode (unsigned Opc, unsigned Order, DebugLoc dl, SDVTList VTs)
	Create an SDNode.

void	DropOperands ()
	Release the operands and set this node to have zero operands.

Protected Member Functions inherited from llvm::ilist_node_impl< OptionsT >
	ilist_node_impl ()=default

Static Protected Member Functions inherited from llvm::SDNode
static SDVTList	getSDVTList (MVT VT)

Protected Attributes inherited from llvm::MemSDNode
MachineMemOperand *	MMO
	Memory reference information.

Protected Attributes inherited from llvm::SDNode
union {
char RawSDNodeBits [sizeof(uint16_t)]

SDNodeBitfields SDNodeBits

ConstantSDNodeBitfields ConstantSDNodeBits

MemSDNodeBitfields MemSDNodeBits

LSBaseSDNodeBitfields LSBaseSDNodeBits

LoadSDNodeBitfields LoadSDNodeBits

StoreSDNodeBitfields StoreSDNodeBits

};

Detailed Description

This is an SDNode representing atomic operations.

Definition at line 1548 of file SelectionDAGNodes.h.

Constructor & Destructor Documentation

◆ AtomicSDNode()

llvm::AtomicSDNode::AtomicSDNode	(	unsigned	Opc,
		unsigned	Order,
		const DebugLoc &	dl,
		SDVTList	VTL,
		EVT	MemVT,
		MachineMemOperand *	MMO
	)

inline

Definition at line 1550 of file SelectionDAGNodes.h.

References assert(), llvm::ISD::ATOMIC_LOAD, llvm::ISD::ATOMIC_STORE, llvm::MachineMemOperand::isAtomic(), and llvm::MemSDNode::MMO.

Member Function Documentation

◆ classof()

static bool llvm::AtomicSDNode::classof ( const SDNode * N )

inlinestatic

◆ getBasePtr()

const SDValue & llvm::AtomicSDNode::getBasePtr ( ) const

inline

Definition at line 1567 of file SelectionDAGNodes.h.

References llvm::ISD::ATOMIC_STORE, llvm::SDNode::getOpcode(), and llvm::SDNode::getOperand().

◆ getExtensionType()

ISD::LoadExtType llvm::AtomicSDNode::getExtensionType ( ) const

inline

Definition at line 1562 of file SelectionDAGNodes.h.

References assert(), llvm::ISD::ATOMIC_LOAD, llvm::SDNode::getOpcode(), and llvm::SDNode::LoadSDNodeBits.

◆ getFailureOrdering()

AtomicOrdering llvm::AtomicSDNode::getFailureOrdering ( ) const

inline

For cmpxchg atomic operations, return the atomic ordering requirements when store does not occur.

Definition at line 1584 of file SelectionDAGNodes.h.

References assert(), llvm::MachineMemOperand::getFailureOrdering(), isCompareAndSwap(), and llvm::MemSDNode::MMO.

◆ getVal()

const SDValue & llvm::AtomicSDNode::getVal ( ) const

inline

Definition at line 1570 of file SelectionDAGNodes.h.

References llvm::ISD::ATOMIC_STORE, llvm::SDNode::getOpcode(), and llvm::SDNode::getOperand().

◆ isCompareAndSwap()

bool llvm::AtomicSDNode::isCompareAndSwap ( ) const

inline

Returns true if this SDNode represents cmpxchg atomic operation, false otherwise.

Definition at line 1576 of file SelectionDAGNodes.h.

References llvm::ISD::ATOMIC_CMP_SWAP, llvm::ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS, and llvm::SDNode::getOpcode().

Referenced by getFailureOrdering().

◆ setExtensionType()

void llvm::AtomicSDNode::setExtensionType ( ISD::LoadExtType ETy )

inline

Definition at line 1557 of file SelectionDAGNodes.h.

References assert(), llvm::ISD::ATOMIC_LOAD, llvm::SDNode::getOpcode(), and llvm::SDNode::LoadSDNodeBits.

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

include/llvm/CodeGen/SelectionDAGNodes.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AtomicSDNode()

Member Function Documentation

◆ classof()

◆ getBasePtr()

◆ getExtensionType()

◆ getFailureOrdering()

◆ getVal()

◆ isCompareAndSwap()

◆ setExtensionType()