LexicalScopes - This class provides interface to collect and use lexical scoping information from machine instruction. More...

#include "llvm/CodeGen/LexicalScopes.h"

Public Member Functions
	LexicalScopes ()=default

void	initialize (const MachineFunction &)
	initialize - Scan machine function and constuct lexical scope nest, resets the instance if necessary. More...

void	reset ()
	releaseMemory - release memory. More...

bool	empty ()
	empty - Return true if there is any lexical scope information available. More...

LexicalScope *	getCurrentFunctionScope () const
	getCurrentFunctionScope - Return lexical scope for the current function. More...

void	getMachineBasicBlocks (const DILocation DL, SmallPtrSetImpl< const MachineBasicBlock > &MBBs)
	getMachineBasicBlocks - Populate given set using machine basic blocks which have machine instructions that belong to lexical scope identified by DebugLoc. More...

bool	dominates (const DILocation DL, MachineBasicBlock MBB)
	dominates - Return true if DebugLoc's lexical scope dominates at least one machine instruction's lexical scope in a given machine basic block. More...

LexicalScope *	findLexicalScope (const DILocation *DL)
	findLexicalScope - Find lexical scope, either regular or inlined, for the given DebugLoc. More...

ArrayRef< LexicalScope * >	getAbstractScopesList () const
	getAbstractScopesList - Return a reference to list of abstract scopes. More...

LexicalScope *	findAbstractScope (const DILocalScope *N)
	findAbstractScope - Find an abstract scope or return null. More...

LexicalScope *	findInlinedScope (const DILocalScope N, const DILocation IA)
	findInlinedScope - Find an inlined scope for the given scope/inlined-at. More...

LexicalScope *	findLexicalScope (const DILocalScope *N)
	findLexicalScope - Find regular lexical scope or return null. More...

void	dump () const
	dump - Print data structures to dbgs(). More...

LexicalScope *	getOrCreateAbstractScope (const DILocalScope *Scope)
	getOrCreateAbstractScope - Find or create an abstract lexical scope. More...

Detailed Description

LexicalScopes - This class provides interface to collect and use lexical scoping information from machine instruction.

Definition at line 142 of file LexicalScopes.h.

Constructor & Destructor Documentation

◆ LexicalScopes()

llvm::LexicalScopes::LexicalScopes ( )

default

Member Function Documentation

◆ dominates()

bool LexicalScopes::dominates	(	const DILocation *	DL,
		MachineBasicBlock *	MBB
	)

dominates - Return true if DebugLoc's lexical scope dominates at least one machine instruction's lexical scope in a given machine basic block.

Definition at line 301 of file LexicalScopes.cpp.

References assert(), llvm::LexicalScope::dominates(), llvm::MachineBasicBlock::getParent(), and I.

Referenced by isDbgValueDescribedByReg().

◆ dump()

void llvm::LexicalScopes::dump ( ) const

dump - Print data structures to dbgs().

◆ empty()

bool llvm::LexicalScopes::empty ( )

inline

empty - Return true if there is any lexical scope information available.

Definition at line 154 of file LexicalScopes.h.

Referenced by llvm::DebugHandlerBase::beginFunction(), and llvm::DwarfDebug::beginFunctionImpl().

◆ findAbstractScope()

LexicalScope* llvm::LexicalScopes::findAbstractScope ( const DILocalScope * N )

inline

findAbstractScope - Find an abstract scope or return null.

Definition at line 181 of file LexicalScopes.h.

References I.

◆ findInlinedScope()

LexicalScope* llvm::LexicalScopes::findInlinedScope	(	const DILocalScope *	N,
		const DILocation *	IA
	)

inline

findInlinedScope - Find an inlined scope for the given scope/inlined-at.

Definition at line 187 of file LexicalScopes.h.

References I.

Referenced by validThroughout().

◆ findLexicalScope() [1/2]

LexicalScope * LexicalScopes::findLexicalScope ( const DILocation * DL )

findLexicalScope - Find lexical scope, either regular or inlined, for the given DebugLoc.

Return NULL if not found.

Definition at line 123 of file LexicalScopes.cpp.

References assert(), llvm::MachineFunction::getFunction(), llvm::DILocalScope::getNonLexicalBlockFileScope(), getOrCreateAbstractScope(), llvm::DILocalScope::getSubprogram(), I, if(), llvm::DICompileUnit::NoDebug, and P.

Referenced by validThroughout().

◆ findLexicalScope() [2/2]

LexicalScope* llvm::LexicalScopes::findLexicalScope ( const DILocalScope * N )

inline

findLexicalScope - Find regular lexical scope or return null.

Definition at line 193 of file LexicalScopes.h.

References llvm::LexicalScope::dump(), I, and llvm::LexicalScope::LexicalScope().

◆ getAbstractScopesList()

ArrayRef<LexicalScope *> llvm::LexicalScopes::getAbstractScopesList ( ) const

inline

getAbstractScopesList - Return a reference to list of abstract scopes.

Definition at line 176 of file LexicalScopes.h.

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

◆ getCurrentFunctionScope()

LexicalScope* llvm::LexicalScopes::getCurrentFunctionScope ( ) const

inline

getCurrentFunctionScope - Return lexical scope for the current function.

Definition at line 157 of file LexicalScopes.h.

References llvm::LexicalScope::dominates().

Referenced by llvm::DwarfDebug::beginFunctionImpl(), llvm::CodeViewDebug::endFunctionImpl(), llvm::DwarfDebug::endFunctionImpl(), and llvm::DebugHandlerBase::identifyScopeMarkers().

◆ getMachineBasicBlocks()

void LexicalScopes::getMachineBasicBlocks	(	const DILocation *	DL,
		SmallPtrSetImpl< const MachineBasicBlock *> &	MBBs
	)

getMachineBasicBlocks - Populate given set using machine basic blocks which have machine instructions that belong to lexical scope identified by DebugLoc.

Definition at line 279 of file LexicalScopes.cpp.

References assert(), llvm::SmallPtrSetImplBase::clear(), llvm::LexicalScope::getRanges(), and llvm::SmallPtrSetImpl< PtrType >::insert().

Referenced by isDbgValueDescribedByReg().