This class represents an Operation in the Expression. More...

#include "llvm/DebugInfo/DWARF/DWARFExpression.h"

Classes
struct	Description
	Description of the encoding of one expression Op. More...

Public Types
enum	Encoding : uint8_t { Size1 = 0 , Size2 = 1 , Size4 = 2 , Size8 = 3 , SizeLEB = 4 , SizeAddr = 5 , SizeRefAddr = 6 , SizeBlock = 7 , BaseTypeRef = 8 , SizeSubOpLEB = 9 , WasmLocationArg = 30 , SignBit = 0x80 , SignedSize1 = SignBit \| Size1 , SignedSize2 = SignBit \| Size2 , SignedSize4 = SignBit \| Size4 , SignedSize8 = SignBit \| Size8 , SignedSizeLEB = SignBit \| SizeLEB }
	Size and signedness of expression operations' operands. More...

enum	DwarfVersion : uint8_t { DwarfNA , Dwarf2 = 2 , Dwarf3 , Dwarf4 , Dwarf5 }

Public Member Functions
const Description &	getDescription () const

uint8_t	getCode () const

std::optional< unsigned >	getSubCode () const

uint64_t	getNumOperands () const

ArrayRef< uint64_t >	getRawOperands () const

uint64_t	getRawOperand (unsigned Idx) const

ArrayRef< uint64_t >	getOperandEndOffsets () const

uint64_t	getOperandEndOffset (unsigned Idx) const

uint64_t	getEndOffset () const

bool	isError () const

bool	print (raw_ostream &OS, DIDumpOptions DumpOpts, const DWARFExpression Expr, DWARFUnit U) const

Static Public Member Functions
static bool	verify (const Operation &Op, DWARFUnit *U)
	Verify `Op`. Does not affect the return of isError().

Friends
class	DWARFExpression::iterator

Detailed Description

This class represents an Operation in the Expression.

An Operation can be in Error state (check with isError()). This means that it couldn't be decoded successfully and if it is the case, all others fields contain undefined values.

Definition at line 32 of file DWARFExpression.h.

Member Enumeration Documentation

◆ DwarfVersion

enum llvm::DWARFExpression::Operation::DwarfVersion : uint8_t

Enumerator
DwarfNA	Serves as a marker for unused entries.
Dwarf2
Dwarf3
Dwarf4
Dwarf5

Definition at line 57 of file DWARFExpression.h.

◆ Encoding

enum llvm::DWARFExpression::Operation::Encoding : uint8_t

Size and signedness of expression operations' operands.

Enumerator
Size1
Size2
Size4
Size8
SizeLEB
SizeAddr
SizeRefAddr
SizeBlock	Preceding operand contains block size.
BaseTypeRef
SizeSubOpLEB	The operand is a ULEB128 encoded SubOpcode. This is only valid for the first operand of an operation.
WasmLocationArg
SignBit
SignedSize1
SignedSize2
SignedSize4
SignedSize8
SignedSizeLEB

Definition at line 35 of file DWARFExpression.h.

Member Function Documentation

◆ getCode()

uint8_t llvm::DWARFExpression::Operation::getCode ( ) const

inline

Definition at line 88 of file DWARFExpression.h.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::DwarfDebug::emitDebugLocEntry(), llvm::dwarf_linker::AddressesMap::getVariableRelocAdjustment(), isVariableIndexable(), llvm::DWARFExpression::print(), and llvm::printCompactDWARFExpr().

◆ getDescription()

const Description & llvm::DWARFExpression::Operation::getDescription ( ) const

inline

Definition at line 87 of file DWARFExpression.h.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), and llvm::DwarfDebug::emitDebugLocEntry().

◆ getEndOffset()

uint64_t llvm::DWARFExpression::Operation::getEndOffset ( ) const

inline

Definition at line 99 of file DWARFExpression.h.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::DwarfDebug::emitDebugLocEntry(), llvm::dwarf_linker::AddressesMap::getVariableRelocAdjustment(), and llvm::DWARFExpression::print().

◆ getNumOperands()

uint64_t llvm::DWARFExpression::Operation::getNumOperands ( ) const

inline

Definition at line 90 of file DWARFExpression.h.

References Operands.

Referenced by buildFromShuffleMostly(), combinevXi1ConstantToInteger(), llvm::SelectionDAG::computeKnownBits(), llvm::SelectionDAG::ComputeNumSignBits(), emitIntrinsicWithCC(), emitIntrinsicWithCCAndChain(), llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV4::emitPrintf(), llvm::SITargetLowering::getAsmOperandConstVal(), llvm::omp::getDeviceKernels(), llvm::X86TargetLowering::getNegatedExpression(), getNVPTXMDNode(), getTestBitOperand(), llvm::SelectionDAG::isBaseWithConstantOffset(), llvm::SITargetLowering::isCanonicalized(), isConstantOrUndefBUILD_VECTOR(), IsElementEquivalent(), llvm::SelectionDAG::isGuaranteedNotToBeUndefOrPoison(), isScalarToVector(), isSimpleVIDSequence(), isSplatBV(), llvm::VETargetLowering::legalizePackedAVL(), LowerAVXCONCAT_VECTORS(), llvm::HexagonTargetLowering::LowerBUILD_VECTOR(), lowerBUILD_VECTOR(), LowerBUILD_VECTORvXbf16(), LowerBUILD_VECTORvXi1(), lowerBuildVectorOfConstants(), lowerBuildVectorViaDominantValues(), llvm::AMDGPUTargetLowering::LowerCONCAT_VECTORS(), llvm::HexagonTargetLowering::LowerCONCAT_VECTORS(), LowerCONCAT_VECTORS(), LowerCONCAT_VECTORS_i1(), LowerCONCAT_VECTORSvXi1(), lowerDSPIntr(), llvm::SparcTargetLowering::LowerF128Op(), llvm::HexagonTargetLowering::LowerINLINEASM(), llvm::RISCVTargetLowering::LowerOperation(), llvm::LanaiTargetLowering::LowerSHL_PARTS(), lowerVectorIntrinsicScalars(), llvm::makeFollowupLoopID(), llvm::ISD::matchUnaryPredicateImpl(), llvm::X86InstrInfo::optimizeCompareInstr(), promoteVCIXScalar(), replaceBoolVectorBitcast(), llvm::TargetLowering::ShrinkDemandedOp(), llvm::TargetLowering::SimplifyDemandedBits(), llvm::TargetLowering::SimplifyDemandedVectorElts(), llvm::X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode(), SplitStrictFPVectorOp(), SplitVectorOp(), splitVectorOp(), llvm::VETargetLowering::splitVectorOp(), SplitVPOp(), and llvm::UpgradeModuleFlags().

◆ getOperandEndOffset()

uint64_t llvm::DWARFExpression::Operation::getOperandEndOffset ( unsigned Idx ) const

inline

Definition at line 96 of file DWARFExpression.h.

References Idx.

Referenced by llvm::DwarfDebug::emitDebugLocEntry().

◆ getOperandEndOffsets()

ArrayRef< uint64_t > llvm::DWARFExpression::Operation::getOperandEndOffsets ( ) const

inline

Definition at line 93 of file DWARFExpression.h.

◆ getRawOperand()

uint64_t llvm::DWARFExpression::Operation::getRawOperand ( unsigned Idx ) const

inline

Definition at line 92 of file DWARFExpression.h.

References Idx, and Operands.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::DwarfDebug::emitDebugLocEntry(), llvm::dwarf_linker::AddressesMap::getVariableRelocAdjustment(), llvm::DWARFExpression::print(), and llvm::printCompactDWARFExpr().

◆ getRawOperands()

ArrayRef< uint64_t > llvm::DWARFExpression::Operation::getRawOperands ( ) const

inline

Definition at line 91 of file DWARFExpression.h.

References Operands.

◆ getSubCode()

std::optional< unsigned > llvm::DWARFExpression::Operation::getSubCode ( ) const

Definition at line 296 of file DWARFExpression.cpp.

References llvm::DWARFExpression::Operation::Description::Op, Operands, llvm::SmallVectorBase< Size_T >::size(), and SizeSubOpLEB.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::DwarfDebug::emitDebugLocEntry(), and llvm::printCompactDWARFExpr().

◆ isError()

bool llvm::DWARFExpression::Operation::isError ( ) const

inline

Definition at line 100 of file DWARFExpression.h.

Referenced by isVariableIndexable(), and llvm::DWARFExpression::iterator::operator++().

◆ print()

bool llvm::DWARFExpression::Operation::print	(	raw_ostream &	OS,
		DIDumpOptions	DumpOpts,
		const DWARFExpression *	Expr,
		DWARFUnit *	U
	)		const

Definition at line 302 of file DWARFExpression.cpp.

References assert(), BaseTypeRef, llvm::StringRef::empty(), llvm::format(), llvm::DataExtractor::getU8(), Name, llvm::Offset, llvm::DWARFExpression::Operation::Description::Op, Operands, llvm::dwarf::OperationEncodingString(), OS, llvm::prettyPrintBaseTypeRef(), llvm::DWARFExpression::prettyPrintRegisterOp(), SignBit, Signed, llvm::SmallVectorBase< Size_T >::size(), Size, SizeBlock, SizeSubOpLEB, llvm::dwarf::SubOperationEncodingString(), and WasmLocationArg.

Referenced by emitDebugValueComment(), llvm::AMDGPUTargetLowering::LowerOperation(), llvm::MIPrinter::print(), llvm::DWARFExpression::print(), llvm::MachineInstr::print(), llvm::LanaiInstPrinter::printHi16AndImmOperand(), llvm::LanaiInstPrinter::printHi16ImmOperand(), llvm::R600InstPrinter::printLiteral(), llvm::LanaiInstPrinter::printLo16AndImmOperand(), llvm::LanaiInstPrinter::printMemImmOperand(), llvm::AArch64InstPrinter::printOperand(), llvm::PPCInstPrinter::printOperand(), llvm::NVPTXInstPrinter::printOperand(), llvm::X86IntelInstPrinter::printOperand(), llvm::WebAssemblyInstPrinter::printOperand(), llvm::LanaiInstPrinter::printOperand(), llvm::X86ATTInstPrinter::printOperand(), and llvm::X86InstPrinterCommon::printPCRelImm().

◆ verify()

bool llvm::DWARFExpression::Operation::verify	(	const Operation &	Op,
		DWARFUnit *	U
	)

static

Verify Op. Does not affect the return of isError().

Definition at line 399 of file DWARFExpression.cpp.

References BaseTypeRef, llvm::DWARFExpression::Operation::Description::Op, llvm::SmallVectorBase< Size_T >::size(), and Size.

Referenced by llvm::DWARFExpression::verify().

Friends And Related Function Documentation

◆ DWARFExpression::iterator

friend class DWARFExpression::iterator

friend

Definition at line 78 of file DWARFExpression.h.

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

include/llvm/DebugInfo/DWARF/DWARFExpression.h
lib/DebugInfo/DWARF/DWARFExpression.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Member Enumeration Documentation

◆ DwarfVersion

◆ Encoding

Member Function Documentation

◆ getCode()

◆ getDescription()

◆ getEndOffset()

◆ getNumOperands()

◆ getOperandEndOffset()

◆ getOperandEndOffsets()

◆ getRawOperand()

◆ getRawOperands()

◆ getSubCode()

◆ isError()

◆ print()

◆ verify()

Friends And Related Function Documentation

◆ DWARFExpression::iterator