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, 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. 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 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 435 of file InstrRefBasedImpl.h.

Member Enumeration Documentation

KindT

enum LiveDebugValues::DbgValue::KindT

Enumerator
Undef
Def
VPHI
NoVal

Definition at line 451 of file InstrRefBasedImpl.h.

Constructor & Destructor Documentation

DbgValue() [1/3]

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

inline

Definition at line 463 of file InstrRefBasedImpl.h.

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

DbgValue() [2/3]

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

inline

Definition at line 484 of file InstrRefBasedImpl.h.

References assert().

DbgValue() [3/3]

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

inline

Definition at line 489 of file InstrRefBasedImpl.h.

References assert(), and llvm::RegState::Undef.

Member Function Documentation

dump()

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

Definition at line 914 of file InstrRefBasedImpl.cpp.

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

getDbgOpID()

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

inline

Definition at line 524 of file InstrRefBasedImpl.h.

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

Referenced by dump().

getDbgOpIDs()

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

inline

Definition at line 519 of file InstrRefBasedImpl.h.

Referenced by dump().

getLocationOpCount()

unsigned LiveDebugValues::DbgValue::getLocationOpCount ( ) const

inline

Definition at line 546 of file InstrRefBasedImpl.h.

References LiveDebugValues::DbgValueProperties::getLocationOpCount().

hasIdenticalValidLocOps()

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

inline

Definition at line 565 of file InstrRefBasedImpl.h.

References llvm::lltok::equal, and Other.

hasJoinableLocOps()

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

inline

Definition at line 553 of file InstrRefBasedImpl.h.

References Other.

isUnjoinedPHI()

bool LiveDebugValues::DbgValue::isUnjoinedPHI ( ) const

inline

Definition at line 563 of file InstrRefBasedImpl.h.

operator!=()

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

inline

Definition at line 515 of file InstrRefBasedImpl.h.

References Other.

operator==()

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

inline

Definition at line 500 of file InstrRefBasedImpl.h.

References llvm::tgtok::Def, llvm::lltok::equal, and Other.

setDbgOpIDs()

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

inline

Definition at line 534 of file InstrRefBasedImpl.h.

References assert(), 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 446 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 461 of file InstrRefBasedImpl.h.

Referenced by dump().

Properties

DbgValueProperties LiveDebugValues::DbgValue::Properties

Qualifiers for the ValueIDNum above.

Definition at line 449 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