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LLVM 22.0.0git
Public Member Functions | Static Public Member Functions | Friends | List of all members
llvm::ConstantSDNode Class Reference

#include "llvm/CodeGen/SelectionDAGNodes.h"

Inheritance diagram for llvm::ConstantSDNode:
[legend]

Public Member Functions

const ConstantInt * getConstantIntValue () const
const APInt & getAPIntValue () const
uint64_t getZExtValue () const
int64_t getSExtValue () const
uint64_t getLimitedValue (uint64_t Limit=UINT64_MAX)
MaybeAlign getMaybeAlignValue () const
Align getAlignValue () const
bool isOne () const
bool isZero () const
bool isAllOnes () const
bool isMaxSignedValue () const
bool isMinSignedValue () const
bool isOpaque () 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 isUndef () const
 Returns true if the node type is UNDEF or POISON.
bool isAnyAdd () const
 Returns true if the node type is ADD or PTRADD.
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 isAssert () const
 Test if this node is an assert operation.
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.
LLVM_ABI bool hasAnyUseOfValue (unsigned Value) const
 Return true if there are any use of the indicated value.
LLVM_ABI bool isOnlyUserOf (const SDNode *N) const
 Return true if this node is the only use of N.
LLVM_ABI 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.
LLVM_ABI 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.
std::optional< APInt > bitcastToAPInt () const
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)
LLVM_ABI 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
LLVM_ABI std::string getOperationName (const SelectionDAG *G=nullptr) const
 Return the opcode of this operation for printing.
LLVM_ABI void print_types (raw_ostream &OS, const SelectionDAG *G) const
LLVM_ABI void print_details (raw_ostream &OS, const SelectionDAG *G) const
LLVM_ABI void print (raw_ostream &OS, const SelectionDAG *G=nullptr) const
LLVM_ABI void printr (raw_ostream &OS, const SelectionDAG *G=nullptr) const
LLVM_ABI void printrFull (raw_ostream &O, const SelectionDAG *G=nullptr) const
 Print a SelectionDAG node and all children down to the leaves.
LLVM_ABI 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.
LLVM_ABI void dump () const
 Dump this node, for debugging.
LLVM_ABI void dumpr () const
 Dump (recursively) this node and its use-def subgraph.
LLVM_ABI void dump (const SelectionDAG *G) const
 Dump this node, for debugging.
LLVM_ABI void dumpr (const SelectionDAG *G) const
 Dump (recursively) this node and its use-def subgraph.
LLVM_ABI void dumprFull (const SelectionDAG *G=nullptr) const
 printrFull to dbgs().
LLVM_ABI void dumprWithDepth (const SelectionDAG *G=nullptr, unsigned depth=100) const
 printrWithDepth to dbgs().
LLVM_ABI 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< ilist_detail::compute_node_options< SDNode, Options... >::type >
self_iterator getIterator ()
reverse_self_iterator getReverseIterator ()
std::enable_if_t< T::is_sentinel_tracking_explicit, bool > isSentinel () const
 Check whether this is the sentinel node.
Public Member Functions inherited from llvm::ilist_detail::node_parent_access< ilist_node_impl< ilist_detail::compute_node_options< SDNode, Options... >::type >, ilist_detail::compute_node_options< SDNode, Options... >::type::parent_ty >
const ilist_detail::compute_node_options< SDNode, Options... >::type::parent_ty * getParent () const
void setParent (ilist_detail::compute_node_options< SDNode, Options... >::type::parent_ty *Parent)

Static Public Member Functions

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

Friends

class SelectionDAG

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< ilist_detail::compute_node_options< SDNode, Options... >::type >
using self_iterator
using const_self_iterator
using reverse_self_iterator
using const_reverse_self_iterator
Protected Member Functions inherited from llvm::SDNode
 SDNode (unsigned Opc, unsigned Order, DebugLoc dl, SDVTList VTs)
 Create an SDNode.
LLVM_ABI void DropOperands ()
 Release the operands and set this node to have zero operands.
Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< SDNode, Options... >::type >
 ilist_node_impl ()=default
Static Protected Member Functions inherited from llvm::SDNode
static SDVTList getSDVTList (MVT VT)
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

Definition at line 1740 of file SelectionDAGNodes.h.

Member Function Documentation

◆ classof()

bool llvm::ConstantSDNode::classof ( const SDNode * N)
inlinestatic

Definition at line 1773 of file SelectionDAGNodes.h.

References llvm::ISD::Constant, N, llvm::SDNode::SDNode(), and llvm::ISD::TargetConstant.

◆ getAlignValue()

Align llvm::ConstantSDNode::getAlignValue ( ) const
inline

Definition at line 1763 of file SelectionDAGNodes.h.

◆ getAPIntValue()

const APInt & llvm::ConstantSDNode::getAPIntValue ( ) const
inline

Definition at line 1756 of file SelectionDAGNodes.h.

Referenced by combineAnd(), combineShiftLeft(), combineShiftOfShiftedLogic(), combineTruncSelectToSMaxUSat(), llvm::SelectionDAG::computeKnownBits(), computeKnownBitsForPRMT(), llvm::ARMTargetLowering::computeKnownBitsForTargetNode(), llvm::SelectionDAG::ComputeNumSignBits(), Expand64BitShift(), extractShiftForRotate(), foldAddSubOfSignBit(), foldCSELOfCSEL(), foldRemainderIdiom(), llvm::getBitwiseNotOperand(), llvm::TargetLowering::isConstFalseVal(), llvm::AMDGPUTargetLowering::isInt64ImmLegal(), llvm::AArch64TargetLowering::isMulAddWithConstProfitable(), llvm::ARMTargetLowering::isMulAddWithConstProfitable(), llvm::RISCVTargetLowering::isMulAddWithConstProfitable(), isSaturatingMinMax(), LowerVSETCC(), matchBSwapHWordOrAndAnd(), matchRotateSub(), performAddCSelIntoCSinc(), llvm::ARMTargetLowering::PerformCMOVToBFICombine(), PerformORCombineToBFI(), performSubsToAndsCombine(), PerformUMinFpToSatCombine(), llvm::TargetLowering::SimplifyDemandedBits(), tryLowerToBSL(), tryLowerToSLI(), and TryMULWIDECombine().

◆ getConstantIntValue()

const ConstantInt * llvm::ConstantSDNode::getConstantIntValue ( ) const
inline

Definition at line 1755 of file SelectionDAGNodes.h.

◆ getLimitedValue()

uint64_t llvm::ConstantSDNode::getLimitedValue ( uint64_t Limit = UINT64_MAX)
inline

Definition at line 1759 of file SelectionDAGNodes.h.

References UINT64_MAX.

◆ getMaybeAlignValue()

MaybeAlign llvm::ConstantSDNode::getMaybeAlignValue ( ) const
inline

Definition at line 1762 of file SelectionDAGNodes.h.

◆ getSExtValue()

int64_t llvm::ConstantSDNode::getSExtValue ( ) const
inline

Definition at line 1758 of file SelectionDAGNodes.h.

Referenced by combineADDToMAT_PCREL_ADDR(), createCMovFP(), expandMul(), isExtendedBUILD_VECTOR(), llvm::AArch64TargetLowering::isMulAddWithConstProfitable(), llvm::ARMTargetLowering::isMulAddWithConstProfitable(), llvm::PPCTargetLowering::LowerAsmOperandForConstraint(), llvm::HexagonTargetLowering::LowerDYNAMIC_STACKALLOC(), mayUseP9Setb(), performANDCombine(), performORCombine(), performORCombine(), performSELECTCombine(), performSETCCCombine(), PerformVQDMULHCombine(), llvm::LoongArchDAGToDAGISel::SelectInlineAsmMemoryOperand(), llvm::RISCVDAGToDAGISel::tryShrinkShlLogicImm(), and trySQDMULHCombine().

◆ getZExtValue()

uint64_t llvm::ConstantSDNode::getZExtValue ( ) const
inline

Definition at line 1757 of file SelectionDAGNodes.h.

Referenced by AddCombineBUILD_VECTORToVPADDL(), AddCombineTo64bitMLAL(), llvm::SIInstrInfo::areLoadsFromSameBasePtr(), checkBoolTestSetCCCombine(), CombineANDShift(), combineBVOfVecSExt(), combineShiftToMULH(), llvm::AMDGPUTargetLowering::computeKnownBitsForTargetNode(), llvm::ARMTargetLowering::computeKnownBitsForTargetNode(), llvm::AMDGPUTargetLowering::ComputeNumSignBitsForTargetNode(), llvm::BPFSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::HexagonSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::RISCVSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemset(), expandMul(), getAArch64Cmp(), getExtendTypeForNode(), llvm::SelectionDAG::getMemcpy(), llvm::SelectionDAG::getMemmove(), llvm::SelectionDAG::getMemset(), llvm::SelectionDAG::getNode(), getPermuteMask(), getPointerConstIncrement(), getSToVPermuted(), isAllConstantBuildVector(), isBSwapHWordElement(), isExtendOrShiftOperand(), isValidImmForSVEVecImmAddrMode(), LowerAndToBT(), matchBF16FPExtendLike(), performANDCombine(), performANDCombine(), PerformBFICombine(), performCMovFPCombine(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), PerformMVEVLDCombine(), performORCombine(), performORCombine(), PerformORCombineToBFI(), performSELECTCombine(), PerformShiftCombine(), performSHLCombine(), llvm::AMDGPUTargetLowering::performShlCombine(), performSRACombine(), performSRACombine(), llvm::AMDGPUTargetLowering::performSraCombine(), performSRLCombine(), llvm::AMDGPUTargetLowering::performSrlCombine(), reduceANDOfAtomicLoad(), replaceSplatVectorStore(), SDValueToConstBool(), llvm::AMDGPUDAGToDAGISel::Select(), llvm::LoongArchDAGToDAGISel::SelectInlineAsmMemoryOperand(), shouldGenerateInlineTPLoop(), simplifySetCCIntoEq(), tryCombineCRC32(), and llvm::RISCVDAGToDAGISel::tryShrinkShlLogicImm().

◆ isAllOnes()

bool llvm::ConstantSDNode::isAllOnes ( ) const
inline

Definition at line 1767 of file SelectionDAGNodes.h.

Referenced by emitFloatCompareMask(), foldSetCCWithRotate(), llvm::SelectionDAG::getNode(), and performAddCSelIntoCSinc().

◆ isMaxSignedValue()

bool llvm::ConstantSDNode::isMaxSignedValue ( ) const
inline

Definition at line 1768 of file SelectionDAGNodes.h.

◆ isMinSignedValue()

bool llvm::ConstantSDNode::isMinSignedValue ( ) const
inline

Definition at line 1769 of file SelectionDAGNodes.h.

◆ isOne()

bool llvm::ConstantSDNode::isOne ( ) const
inline

Definition at line 1765 of file SelectionDAGNodes.h.

Referenced by combineShiftToAVG(), getAArch64Cmp(), isSetCC(), performAddCSelIntoCSinc(), llvm::RISCVTargetLowering::shouldProduceAndByConstByHoistingConstFromShiftsLHSOfAnd(), llvm::TargetLoweringBase::shouldProduceAndByConstByHoistingConstFromShiftsLHSOfAnd(), and simplifyDivRem().

◆ isOpaque()

bool llvm::ConstantSDNode::isOpaque ( ) const
inline

Definition at line 1771 of file SelectionDAGNodes.h.

References llvm::SDNode::ConstantSDNodeBits.

Referenced by foldBinOpIntoSelectIfProfitable(), foldBinOpIntoSelectIfProfitable(), SelectionDAG, and llvm::TargetLowering::SimplifyDemandedBits().

◆ isZero()

bool llvm::ConstantSDNode::isZero ( ) const
inline

Definition at line 1766 of file SelectionDAGNodes.h.

Referenced by combineTruncSelectToSMaxUSat(), ConvertSelectToConcatVector(), emitFloatCompareMask(), foldSetCCWithFunnelShift(), foldSetCCWithRotate(), getAArch64Cmp(), llvm::SelectionDAG::getMemcpy(), llvm::SelectionDAG::getMemmove(), llvm::SelectionDAG::getMemset(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getNode(), llvm::TargetLowering::isConstFalseVal(), isExtendedBUILD_VECTOR(), isSetCC(), llvm::TargetLowering::SimplifyDemandedBits(), and simplifyDivRem().

◆ SelectionDAG

friend class SelectionDAG
friend

Definition at line 1741 of file SelectionDAGNodes.h.

References llvm::SDNode::ConstantSDNodeBits, llvm::isa(), isOpaque(), llvm::SDNode::SDNode(), and SelectionDAG.

Referenced by SelectionDAG.

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