LLVM: llvm::MachinePointerInfo Struct Reference (original) (raw)

This class contains a discriminated union of information about pointers in memory operands, relating them back to LLVM IR or to virtual locations (such as frame indices) that are exposed during codegen. More...

#include "[llvm/CodeGen/MachineMemOperand.h](MachineMemOperand%5F8h%5Fsource.html)"

Public Member Functions
MachinePointerInfo (const Value *v, int64_t offset=0, uint8_t ID=0)
MachinePointerInfo (const PseudoSourceValue *v, int64_t offset=0, uint8_t ID=0)
MachinePointerInfo (unsigned AddressSpace=0, int64_t offset=0)
MachinePointerInfo (PointerUnion< const Value *, const PseudoSourceValue * > v, int64_t offset=0, uint8_t ID=0)
MachinePointerInfo getWithOffset (int64_t O) const
LLVM_ABI bool isDereferenceable (unsigned Size, LLVMContext &C, const DataLayout &DL) const
Return true if memory region [V, V+Offset+Size) is known to be dereferenceable.
LLVM_ABI unsigned getAddrSpace () const
Return the LLVM IR address space number that this pointer points into.
Static Public Member Functions
static LLVM_ABI MachinePointerInfo getConstantPool (MachineFunction &MF)
Return a MachinePointerInfo record that refers to the constant pool.
static LLVM_ABI MachinePointerInfo getFixedStack (MachineFunction &MF, int FI, int64_t Offset=0)
Return a MachinePointerInfo record that refers to the specified FrameIndex.
static LLVM_ABI MachinePointerInfo getJumpTable (MachineFunction &MF)
Return a MachinePointerInfo record that refers to a jump table entry.
static LLVM_ABI MachinePointerInfo getGOT (MachineFunction &MF)
Return a MachinePointerInfo record that refers to a GOT entry.
static LLVM_ABI MachinePointerInfo getStack (MachineFunction &MF, int64_t Offset, uint8_t ID=0)
Stack pointer relative access.
static LLVM_ABI MachinePointerInfo getUnknownStack (MachineFunction &MF)
Stack memory without other information.
Public Attributes
PointerUnion< const Value *, const PseudoSourceValue * > V
This is the IR pointer value for the access, or it is null if unknown.
int64_t Offset
Offset - This is an offset from the base Value*.
unsigned AddrSpace = 0
uint8_t StackID

This class contains a discriminated union of information about pointers in memory operands, relating them back to LLVM IR or to virtual locations (such as frame indices) that are exposed during codegen.

Definition at line 42 of file MachineMemOperand.h.

llvm::MachinePointerInfo::MachinePointerInfo ( const Value * v, int64_t offset = 0, uint8_t ID = 0 ) inlineexplicit

Definition at line 53 of file MachineMemOperand.h.

References AddrSpace, llvm::getPointerAddressSpace(), Offset, StackID, and V.

Referenced by getConstantPool(), getFixedStack(), getGOT(), getJumpTable(), getStack(), getUnknownStack(), and getWithOffset().

◆ MachinePointerInfo() [2/4]

◆ MachinePointerInfo() [3/4]

llvm::MachinePointerInfo::MachinePointerInfo ( unsigned AddressSpace = 0, int64_t offset = 0 ) inlineexplicit

◆ MachinePointerInfo() [4/4]

◆ getAddrSpace()

unsigned MachinePointerInfo::getAddrSpace ( ) const

Return the LLVM IR address space number that this pointer points into.

getAddrSpace - Return the LLVM IR address space number that this pointer points into.

Definition at line 1066 of file MachineOperand.cpp.

References AddrSpace.

Referenced by AddNodeIDCustom(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemset(), llvm::MemSDNode::getAddressSpace(), llvm::SelectionDAG::getAtomic(), llvm::SelectionDAG::getGatherVP(), llvm::SelectionDAG::getGetFPEnv(), llvm::SelectionDAG::getLoad(), llvm::SelectionDAG::getLoadFFVP(), llvm::SelectionDAG::getLoadVP(), llvm::SelectionDAG::getMaskedGather(), llvm::SelectionDAG::getMaskedHistogram(), llvm::SelectionDAG::getMaskedLoad(), llvm::SelectionDAG::getMaskedScatter(), llvm::SelectionDAG::getMaskedStore(), llvm::SelectionDAG::getMemcpy(), getMemcpyLoadsAndStores(), llvm::SelectionDAG::getMemIntrinsicNode(), llvm::SelectionDAG::getMemmove(), getMemmoveLoadsAndStores(), llvm::SelectionDAG::getMemset(), getMemsetStores(), llvm::SelectionDAG::getScatterVP(), llvm::SelectionDAG::getSetFPEnv(), llvm::SelectionDAG::getStore(), llvm::SelectionDAG::getStoreVP(), llvm::SelectionDAG::getStridedLoadVP(), llvm::SelectionDAG::getStridedStoreVP(), llvm::SelectionDAG::getTruncStoreVP(), llvm::SelectionDAG::getTruncStridedStoreVP(), llvm::MipsCallLowering::lowerFormalArguments(), llvm::CombinerHelper::matchCombineExtractedVectorLoad(), narrowBitOpRMW(), narrowExtractedVectorLoad(), and llvm::TargetLowering::scalarizeExtractedVectorLoad().

◆ getConstantPool()

Return a MachinePointerInfo record that refers to the constant pool.

getConstantPool - Return a MachinePointerInfo record that refers to the constant pool.

Definition at line 1086 of file MachineOperand.cpp.

References llvm::PseudoSourceValueManager::getConstantPool(), llvm::MachineFunction::getPSVManager(), and MachinePointerInfo().

Referenced by combineConcatVectorOps(), combineTargetShuffle(), llvm::TargetLowering::CTTZTableLookup(), emitLoadFromConstantPool(), llvm::CSKYInstrInfo::getGlobalBaseReg(), getLargeExternalSymbol(), getLargeGlobalAddress(), lowerBuildVectorAsBroadcast(), llvm::XtensaTargetLowering::LowerCall(), LowerUINT_TO_FP_i64(), lowerUINT_TO_FP_vXi32(), and llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetShuffle().

◆ getFixedStack()

Return a MachinePointerInfo record that refers to the specified FrameIndex.

getFixedStack - Return a MachinePointerInfo record that refers to the the specified FrameIndex.

Definition at line 1092 of file MachineOperand.cpp.

References llvm::PseudoSourceValueManager::getFixedStack(), llvm::MachineFunction::getPSVManager(), MachinePointerInfo(), and Offset.

Referenced by addFrameReference(), llvm::addFrameReference(), llvm::addFrameReference(), llvm::M68k::addFrameReference(), llvm::M68k::addMemOperand(), buildEpilogRestore(), llvm::X86TargetLowering::BuildFILD(), buildPrologSpill(), llvm::SIRegisterInfo::buildVGPRSpillLoadStore(), llvm::LegalizerHelper::createStackTemporary(), emitBuildPairF64Pseudo(), llvm::PPCTargetLowering::EmitInstrWithCustomInserter(), llvm::TargetLoweringBase::emitPatchPoint(), llvm::X86FrameLowering::emitPrologue(), emitSplitF64Pseudo(), EmitTailCallStoreFPAndRetAddr(), EmitTailCallStoreRetAddr(), llvm::TargetLowering::expandMultipleResultFPLibCall(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), llvm::TargetLowering::expandVECTOR_COMPRESS(), llvm::TargetLowering::expandVectorSplice(), foldInlineAsmMemOperand(), llvm::TargetInstrInfo::foldMemoryOperand(), getAddressForMemoryInput(), getFrameIndexMMO(), getMachineMemOperand(), llvm::MipsInstrInfo::GetMemOperand(), getStackAlignedMMO(), llvm::CallLowering::handleAssignments(), InferPointerInfo(), llvm::CallLowering::insertSRetLoads(), llvm::AArch64InstrInfo::loadRegFromStackSlot(), llvm::ARCInstrInfo::loadRegFromStackSlot(), llvm::ARMBaseInstrInfo::loadRegFromStackSlot(), llvm::AVRInstrInfo::loadRegFromStackSlot(), llvm::CSKYInstrInfo::loadRegFromStackSlot(), llvm::HexagonInstrInfo::loadRegFromStackSlot(), llvm::LoongArchInstrInfo::loadRegFromStackSlot(), llvm::MSP430InstrInfo::loadRegFromStackSlot(), llvm::RISCVInstrInfo::loadRegFromStackSlot(), llvm::SIInstrInfo::loadRegFromStackSlot(), llvm::SparcInstrInfo::loadRegFromStackSlot(), llvm::Thumb1InstrInfo::loadRegFromStackSlot(), llvm::Thumb2InstrInfo::loadRegFromStackSlot(), llvm::VEInstrInfo::loadRegFromStackSlot(), llvm::XCoreInstrInfo::loadRegFromStackSlot(), llvm::PPCInstrInfo::loadRegFromStackSlotNoUpd(), LowerATOMIC_STORE(), llvm::LoongArchTargetLowering::LowerCall(), llvm::RISCVTargetLowering::LowerCall(), llvm::SITargetLowering::LowerCall(), llvm::SystemZTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), llvm::TargetLowering::LowerCallTo(), llvm::HexagonTargetLowering::LowerFormalArguments(), llvm::LoongArchTargetLowering::LowerFormalArguments(), llvm::RISCVTargetLowering::LowerFormalArguments(), llvm::SystemZTargetLowering::LowerFormalArguments(), llvm::VETargetLowering::LowerFormalArguments(), llvm::XtensaTargetLowering::LowerFormalArguments(), llvm::MipsCallLowering::lowerFormalArguments(), llvm::SparcTargetLowering::LowerFormalArguments_32(), llvm::SparcTargetLowering::LowerFormalArguments_64(), llvm::InlineAsmLowering::lowerInlineAsm(), llvm::ARMTargetLowering::PerformMVEExtCombine(), llvm::ARMTargetLowering::PerformMVETruncCombine(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), llvm::X86TargetLowering::ReplaceNodeResults(), llvm::AArch64FrameLowering::restoreCalleeSavedRegisters(), llvm::SIFrameLowering::restoreCalleeSavedRegisters(), llvm::AArch64FrameLowering::spillCalleeSavedRegisters(), llvm::SIFrameLowering::spillCalleeSavedRegisters(), spillIncomingStatepointValue(), llvm::AArch64InstrInfo::storeRegToStackSlot(), llvm::ARCInstrInfo::storeRegToStackSlot(), llvm::ARMBaseInstrInfo::storeRegToStackSlot(), llvm::AVRInstrInfo::storeRegToStackSlot(), llvm::CSKYInstrInfo::storeRegToStackSlot(), llvm::HexagonInstrInfo::storeRegToStackSlot(), llvm::LoongArchInstrInfo::storeRegToStackSlot(), llvm::MSP430InstrInfo::storeRegToStackSlot(), llvm::RISCVInstrInfo::storeRegToStackSlot(), llvm::SIInstrInfo::storeRegToStackSlot(), llvm::SparcInstrInfo::storeRegToStackSlot(), llvm::Thumb1InstrInfo::storeRegToStackSlot(), llvm::Thumb2InstrInfo::storeRegToStackSlot(), llvm::VEInstrInfo::storeRegToStackSlot(), llvm::XCoreInstrInfo::storeRegToStackSlot(), llvm::PPCInstrInfo::storeRegToStackSlotNoUpd(), StoreTailCallArgumentsToStackSlot(), unpack64(), unpackF64OnLA32DSoftABI(), unpackF64OnRV32DSoftABI(), unpackFromMemLoc(), unpackFromMemLoc(), unpackFromMemLoc(), llvm::SelectionDAGBuilder::visitSPDescriptorFailure(), and llvm::SelectionDAGBuilder::visitSPDescriptorParent().

◆ getGOT()

◆ getJumpTable()

◆ getStack()

◆ getUnknownStack()

◆ getWithOffset()

Definition at line 82 of file MachineMemOperand.h.

References AddrSpace, llvm::cast(), llvm::isa(), MachinePointerInfo(), Offset, StackID, and V.

Referenced by llvm::SIRegisterInfo::buildSpillLoadStore(), combineExtractFromVectorLoad(), combineStore(), combineTargetShuffle(), emitBuildPairF64Pseudo(), emitConstantSizeRepmov(), emitConstantSizeRepstos(), emitSplitF64Pseudo(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::RISCVSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::MachineFunction::getMachineMemOperand(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), getMemsetStores(), llvm::AMDGPULegalizerInfo::getSegmentAperture(), llvm::AMDGPULegalizerInfo::legalizeKernargMemParameter(), llvm::AMDGPULegalizerInfo::legalizeTrapHsaQueuePtr(), llvm::LegalizerHelper::lowerExtractInsertVectorElt(), LowerF128Load(), LowerF128Store(), llvm::CombinerHelper::matchCombineExtractedVectorLoad(), PerformSplittingMVETruncToNarrowingStores(), PerformSplittingToNarrowingStores(), PerformSTORECombine(), prepareDescriptorIndirectCall(), llvm::RISCVDAGToDAGISel::PreprocessISelDAG(), reduceMaskedStoreToScalarStore(), llvm::TargetLowering::scalarizeExtractedVectorLoad(), ShrinkLoadReplaceStoreWithStore(), splitStoreSplat(), llvm::AMDGPUTargetLowering::SplitVectorLoad(), and llvm::AMDGPUTargetLowering::SplitVectorStore().

◆ isDereferenceable()

Return true if memory region [V, V+Offset+Size) is known to be dereferenceable.

isDereferenceable - Return true if V is always dereferenceable for Offset + Size byte.

Definition at line 1070 of file MachineOperand.cpp.

References llvm::CallingConv::C, llvm::cast(), DL, llvm::dyn_cast(), llvm::isa(), llvm::isDereferenceableAndAlignedPointer(), Offset, Size, and V.

Referenced by EltsFromConsecutiveLoads(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), and llvm::AMDGPUTargetLowering::WidenOrSplitVectorLoad().

◆ AddrSpace

unsigned llvm::MachinePointerInfo::AddrSpace = 0

◆ Offset

int64_t llvm::MachinePointerInfo::Offset

◆ StackID

uint8_t llvm::MachinePointerInfo::StackID

◆ V

This is the IR pointer value for the access, or it is null if unknown.

Definition at line 44 of file MachineMemOperand.h.

Referenced by llvm::SelectionDAG::getLoad(), llvm::SelectionDAG::getLoadVP(), llvm::MachineFunction::getMachineMemOperand(), getMemcpyLoadsAndStores(), llvm::SelectionDAG::getStore(), llvm::SelectionDAG::getTruncStore(), llvm::SelectionDAG::getTruncStoreVP(), getWithOffset(), llvm::inferAlignFromPtrInfo(), isDereferenceable(), MachinePointerInfo(), MachinePointerInfo(), MachinePointerInfo(), and MachinePointerInfo().

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