LiveDebugValues::DbgValue Class Reference

Class recording the (high level) value of a variable. More...

#include "CodeGen/LiveDebugValues/InstrRefBasedImpl.h"

Collaboration diagram for LiveDebugValues::DbgValue:

Public Types
enum	KindT {   Undef, Def, Const, VPHI,   NoVal }

Public Member Functions
	DbgValue (const ValueIDNum &Val, const DbgValueProperties &Prop, KindT Kind)
	DbgValue (unsigned BlockNo, const DbgValueProperties &Prop, KindT Kind)
	DbgValue (const MachineOperand &MO, const DbgValueProperties &Prop, KindT Kind)
	DbgValue (const DbgValueProperties &Prop, KindT Kind)
void	dump (const MLocTracker *MTrack) const
bool	operator== (const DbgValue &Other) const
bool	operator!= (const DbgValue &Other) const

Public Attributes
ValueIDNum	ID
	If Kind is Def, the value number that this value is based on. More...
Optional< MachineOperand >	MO
	If Kind is Const, the MachineOperand defining this value. More...
int	BlockNo
	For a NoVal or VPHI DbgValue, which block it was generated in. More...
DbgValueProperties	Properties
	Qualifiers for the ValueIDNum above. More...
KindT	Kind
	Discriminator for whether this is a constant or an in-program value. More...

Detailed Description

Class recording the (high level) value of a variable.

Identifies either the value of the variable as a ValueIDNum, or a constant MachineOperand. This class also stores meta-information about how the value is qualified. Used to reason about variable values when performing the second (DebugVariable specific) dataflow analysis.

Definition at line 225 of file InstrRefBasedImpl.h.

Member Enumeration Documentation

KindT

enum LiveDebugValues::DbgValue::KindT

Enumerator
Undef
Def
Const
VPHI
NoVal

Definition at line 239 of file InstrRefBasedImpl.h.

Constructor & Destructor Documentation

DbgValue() [1/4]

LiveDebugValues::DbgValue::DbgValue ( const ValueIDNum &  Val, const DbgValueProperties &  Prop, KindT  Kind  )

inline

Definition at line 251 of file InstrRefBasedImpl.h.

References assert(), llvm::tgtok::Def, and llvm::None.

DbgValue() [2/4]

LiveDebugValues::DbgValue::DbgValue ( unsigned  BlockNo, const DbgValueProperties &  Prop, KindT  Kind  )

inline

Definition at line 256 of file InstrRefBasedImpl.h.

References assert(), and llvm::None.

DbgValue() [3/4]

LiveDebugValues::DbgValue::DbgValue ( const MachineOperand &  MO, const DbgValueProperties &  Prop, KindT  Kind  )

inline

Definition at line 262 of file InstrRefBasedImpl.h.

References assert().

DbgValue() [4/4]

LiveDebugValues::DbgValue::DbgValue ( const DbgValueProperties &  Prop, KindT  Kind  )

inline

Definition at line 268 of file InstrRefBasedImpl.h.

References assert(), llvm::None, and llvm::RegState::Undef.

Member Function Documentation

dump()

void DbgValue::dump

(

const MLocTracker *

MTrack

)

const

Definition at line 646 of file InstrRefBasedImpl.cpp.

References assert(), BlockNo, Const, llvm::dbgs(), Def, LiveDebugValues::DbgValueProperties::DIExpr, ID, LiveDebugValues::MLocTracker::IDAsString(), LiveDebugValues::DbgValueProperties::Indirect, Kind, MO, NoVal, Properties, and VPHI.

operator!=()

bool LiveDebugValues::DbgValue::operator!= ( const DbgValue &  Other ) const

inline

Definition at line 296 of file InstrRefBasedImpl.h.

References Other.

operator==()

bool LiveDebugValues::DbgValue::operator== ( const DbgValue &  Other ) const

inline

Definition at line 279 of file InstrRefBasedImpl.h.

References llvm::tgtok::Def, llvm::MachineOperand::isIdenticalTo(), and Other.

Member Data Documentation

BlockNo

int LiveDebugValues::DbgValue::BlockNo

For a NoVal or VPHI DbgValue, which block it was generated in.

Definition at line 234 of file InstrRefBasedImpl.h.

Referenced by dump().

ID

ValueIDNum LiveDebugValues::DbgValue::ID

If Kind is Def, the value number that this value is based on.

VPHIs set this field to EmptyValue if there is no machine-value for this VPHI, or the corresponding machine-value if there is one.

Definition at line 230 of file InstrRefBasedImpl.h.

Referenced by dump().

Kind

KindT LiveDebugValues::DbgValue::Kind

Discriminator for whether this is a constant or an in-program value.

Definition at line 249 of file InstrRefBasedImpl.h.

Referenced by dump().

MO

Optional<MachineOperand> LiveDebugValues::DbgValue::MO

If Kind is Const, the MachineOperand defining this value.

Definition at line 232 of file InstrRefBasedImpl.h.

Referenced by dump().

Properties

DbgValueProperties LiveDebugValues::DbgValue::Properties

Qualifiers for the ValueIDNum above.

Definition at line 237 of file InstrRefBasedImpl.h.

Referenced by dump().

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

• lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.h
• lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp