LiveDebugValues::DbgValue Class Reference

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

#include "CodeGen/LiveDebugValues/InstrRefBasedImpl.h"

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

Public Member Functions
	DbgValue (ArrayRef< DbgOpID > DbgOps, const DbgValueProperties &Prop)
	DbgValue (unsigned BlockNo, const DbgValueProperties &Prop, KindT Kind)
	DbgValue (const DbgValueProperties &Prop, KindT Kind)
void	dump (const MLocTracker *MTrack=nullptr, const DbgOpIDMap *OpStore=nullptr) const
bool	operator== (const DbgValue &Other) const
bool	operator!= (const DbgValue &Other) const
ArrayRef< DbgOpID >	getDbgOpIDs () const
DbgOpID	getDbgOpID (unsigned Index) const
void	setDbgOpIDs (ArrayRef< DbgOpID > NewIDs)
unsigned	getLocationOpCount () const
bool	hasJoinableLocOps (const DbgValue &Other) const
bool	isUnjoinedPHI () const
bool	hasIdenticalValidLocOps (const DbgValue &Other) const

Public Attributes
int	BlockNo
	For a NoVal or VPHI DbgValue, which block it was generated in.
DbgValueProperties	Properties
	Qualifiers for the ValueIDNum above.
KindT	Kind
	Discriminator for whether this is a constant or an in-program value.

Detailed Description

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

Identifies the value of the variable as a list of ValueIDNums and constant MachineOperands, or as an empty list for undef debug values or VPHI values which we have not found valid locations for. 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 441 of file InstrRefBasedImpl.h.

Member Enumeration Documentation

KindT

enum LiveDebugValues::DbgValue::KindT

Enumerator
Undef
Def
VPHI
NoVal

Definition at line 457 of file InstrRefBasedImpl.h.

Constructor & Destructor Documentation

DbgValue() [1/3]

LiveDebugValues::DbgValue::DbgValue ( ArrayRef< DbgOpID >  DbgOps, const DbgValueProperties &  Prop  )

inline

Definition at line 469 of file InstrRefBasedImpl.h.

References llvm::any_of(), assert(), llvm::dbgs(), LiveDebugValues::DbgValueProperties::getLocationOpCount(), Idx, Kind, LLVM_DEBUG, MAX_DBG_OPS, llvm::ArrayRef< T >::size(), llvm::size(), and Undef.

DbgValue() [2/3]

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

inline

Definition at line 490 of file InstrRefBasedImpl.h.

References assert(), Kind, NoVal, and VPHI.

DbgValue() [3/3]

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

inline

Definition at line 495 of file InstrRefBasedImpl.h.

References assert(), Kind, and Undef.

Member Function Documentation

dump()

void DbgValue::dump	(	const MLocTracker *	MTrack = nullptr,
		const DbgOpIDMap *	OpStore = nullptr
	)		const

Definition at line 966 of file InstrRefBasedImpl.cpp.

References BlockNo, llvm::dbgs(), Def, LiveDebugValues::DbgValueProperties::DIExpr, LiveDebugValues::DbgOpID::dump(), getDbgOpID(), getDbgOpIDs(), Idx, LiveDebugValues::DbgValueProperties::Indirect, Kind, NoVal, Properties, and VPHI.

getDbgOpID()

DbgOpID LiveDebugValues::DbgValue::getDbgOpID ( unsigned  Index ) const

inline

Definition at line 530 of file InstrRefBasedImpl.h.

References assert(), and LiveDebugValues::DbgOpID::UndefID.

Referenced by dump(), and hasJoinableLocOps().

getDbgOpIDs()

ArrayRef< DbgOpID > LiveDebugValues::DbgValue::getDbgOpIDs ( ) const

inline

Definition at line 525 of file InstrRefBasedImpl.h.

Referenced by dump(), hasIdenticalValidLocOps(), and operator==().

getLocationOpCount()

unsigned LiveDebugValues::DbgValue::getLocationOpCount ( ) const

inline

Definition at line 552 of file InstrRefBasedImpl.h.

References LiveDebugValues::DbgValueProperties::getLocationOpCount(), and Properties.

Referenced by hasJoinableLocOps(), and setDbgOpIDs().

hasIdenticalValidLocOps()

bool LiveDebugValues::DbgValue::hasIdenticalValidLocOps ( const DbgValue &  Other ) const

inline

Definition at line 571 of file InstrRefBasedImpl.h.

References llvm::equal(), getDbgOpIDs(), and llvm::Other.

hasJoinableLocOps()

bool LiveDebugValues::DbgValue::hasJoinableLocOps ( const DbgValue &  Other ) const

inline

Definition at line 559 of file InstrRefBasedImpl.h.

References getDbgOpID(), getLocationOpCount(), Idx, LiveDebugValues::DbgOpID::isConst(), isUnjoinedPHI(), and llvm::Other.

isUnjoinedPHI()

bool LiveDebugValues::DbgValue::isUnjoinedPHI ( ) const

inline

Definition at line 569 of file InstrRefBasedImpl.h.

References Kind, and VPHI.

Referenced by hasJoinableLocOps().

operator!=()

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

inline

Definition at line 521 of file InstrRefBasedImpl.h.

References llvm::Other.

operator==()

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

inline

Definition at line 506 of file InstrRefBasedImpl.h.

References BlockNo, Def, llvm::equal(), getDbgOpIDs(), Kind, NoVal, llvm::Other, Properties, and VPHI.

setDbgOpIDs()

void LiveDebugValues::DbgValue::setDbgOpIDs ( ArrayRef< DbgOpID >  NewIDs )

inline

Definition at line 540 of file InstrRefBasedImpl.h.

References assert(), getLocationOpCount(), Idx, and llvm::ArrayRef< T >::size().

Member Data Documentation

BlockNo

int LiveDebugValues::DbgValue::BlockNo

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

Definition at line 452 of file InstrRefBasedImpl.h.

Referenced by dump(), and operator==().

Kind

KindT LiveDebugValues::DbgValue::Kind

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

Definition at line 467 of file InstrRefBasedImpl.h.

Referenced by DbgValue(), dump(), isUnjoinedPHI(), and operator==().

Properties

DbgValueProperties LiveDebugValues::DbgValue::Properties

Qualifiers for the ValueIDNum above.

Definition at line 455 of file InstrRefBasedImpl.h.

Referenced by dump(), getLocationOpCount(), and operator==().

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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