class LexicalScopes

Declaration

class LexicalScopes { /* full declaration omitted */ };

Description

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

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:141

Member Variables

private const llvm::MachineFunction* MF = nullptr
private std::unordered_map<const DILocalScope*, LexicalScope> LexicalScopeMap
LexicalScopeMap - Tracks the scopes in the current function.
private std::unordered_map<std::pair<const DILocalScope*, const DILocation*>, LexicalScope, pair_hash<const DILocalScope*, const DILocation*>> InlinedLexicalScopeMap
InlinedLexicalScopeMap - Tracks inlined function scopes in current function.
private std::unordered_map<const DILocalScope*, LexicalScope> AbstractScopeMap
AbstractScopeMap - These scopes are not included LexicalScopeMap.
private SmallVector<llvm::LexicalScope*, 4> AbstractScopesList
AbstractScopesList - Tracks abstract scopes constructed while processing a function.
private llvm::LexicalScope* CurrentFnLexicalScope = nullptr
CurrentFnLexicalScope - Top level scope for the current function.
private DenseMap<const llvm::DILocation*, std::unique_ptr<BlockSetT>> DominatedBlocks

Method Overview

Methods

LexicalScopes()

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:143

void assignInstructionRanges(
    SmallVectorImpl<llvm::InsnRange>& MIRanges,
    DenseMap<const llvm::MachineInstr*,
             llvm::LexicalScope*>& M)

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:223

Parameters

SmallVectorImpl<llvm::InsnRange>& MIRanges
DenseMap<const llvm::MachineInstr*, llvm::LexicalScope*>& M

void constructScopeNest(llvm::LexicalScope* Scope)

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:221

Parameters

llvm::LexicalScope* Scope

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

Description

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

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:168

Parameters

const llvm::DILocation* DL
llvm::MachineBasicBlock* MBB

bool empty()

Description

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

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:153

void extractLexicalScopes(
    SmallVectorImpl<llvm::InsnRange>& MIRanges,
    DenseMap<const llvm::MachineInstr*,
             llvm::LexicalScope*>& M)

Description

extractLexicalScopes - Extract instruction ranges for each lexical scopes for the given machine function.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:219

Parameters

SmallVectorImpl<llvm::InsnRange>& MIRanges
DenseMap<const llvm::MachineInstr*, llvm::LexicalScope*>& M

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

Description

findAbstractScope - Find an abstract scope or return null.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:180

Parameters

const llvm::DILocalScope* N

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

Description

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

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:186

Parameters

const llvm::DILocalScope* N
const llvm::DILocation* IA

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

Description

findLexicalScope - Find lexical scope, either regular or inlined, for the given DebugLoc. Return NULL if not found.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:172

Parameters

const llvm::DILocation* DL

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

Description

findLexicalScope - Find regular lexical scope or return null.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:192

Parameters

const llvm::DILocalScope* N

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

Description

getAbstractScopesList - Return a reference to list of abstract scopes.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:175

llvm::LexicalScope* getCurrentFunctionScope()
    const

Description

getCurrentFunctionScope - Return lexical scope for the current function.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:156

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

Description

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

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:163

Parameters

const llvm::DILocation* DL
SmallPtrSetImpl<const llvm::MachineBasicBlock*>& MBBs

llvm::LexicalScope* getOrCreateAbstractScope(
    const llvm::DILocalScope* Scope)

Description

getOrCreateAbstractScope - Find or create an abstract lexical scope.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:198

Parameters

const llvm::DILocalScope* Scope

llvm::LexicalScope* getOrCreateInlinedScope(
    const llvm::DILocalScope* Scope,
    const llvm::DILocation* InlinedAt)

Description

getOrCreateInlinedScope - Find or create an inlined lexical scope.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:214

Parameters

const llvm::DILocalScope* Scope
const llvm::DILocation* InlinedAt

llvm::LexicalScope* getOrCreateLexicalScope(
    const llvm::DILocalScope* Scope,
    const llvm::DILocation* IA = nullptr)

Description

getOrCreateLexicalScope - Find lexical scope for the given Scope/IA. If not available then create new lexical scope.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:203

Parameters

const llvm::DILocalScope* Scope
const llvm::DILocation* IA = nullptr

llvm::LexicalScope* getOrCreateLexicalScope(
    const llvm::DILocation* DL)

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:205

Parameters

const llvm::DILocation* DL

llvm::LexicalScope* getOrCreateRegularScope(
    const llvm::DILocalScope* Scope)

Description

getOrCreateRegularScope - Find or create a regular lexical scope.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:211

Parameters

const llvm::DILocalScope* Scope

void initialize(const llvm::MachineFunction&)

Description

initialize - Scan machine function and constuct lexical scope nest, resets the instance if necessary.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:147

Parameters

const llvm::MachineFunction& 

void reset()

Description

releaseMemory - release memory.

Declared at: llvm/include/llvm/CodeGen/LexicalScopes.h:150