/// \brief This class is used to track local variable information.
class DbgVariable {
DIVariable Var; // Variable Descriptor.
+ DIExpression Expr; // Complex address location expression.
DIE *TheDIE; // Variable DIE.
unsigned DotDebugLocOffset; // Offset in DotDebugLocEntries.
const MachineInstr *MInsn; // DBG_VALUE instruction of the variable.
public:
/// Construct a DbgVariable from a DIVariable.
- DbgVariable(DIVariable V, DwarfDebug *DD)
- : Var(V), TheDIE(nullptr), DotDebugLocOffset(~0U), MInsn(nullptr),
- FrameIndex(~0), DD(DD) {}
+ DbgVariable(DIVariable V, DIExpression E, DwarfDebug *DD)
+ : Var(V), Expr(E), TheDIE(nullptr), DotDebugLocOffset(~0U),
+ MInsn(nullptr), FrameIndex(~0), DD(DD) {
+ assert(Var.Verify() && Expr.Verify());
+ }
/// Construct a DbgVariable from a DEBUG_VALUE.
/// AbstractVar may be NULL.
DbgVariable(const MachineInstr *DbgValue, DwarfDebug *DD)
- : Var(DbgValue->getDebugVariable()), TheDIE(nullptr),
- DotDebugLocOffset(~0U), MInsn(DbgValue), FrameIndex(~0), DD(DD) {}
+ : Var(DbgValue->getDebugVariable()), Expr(DbgValue->getDebugExpression()),
+ TheDIE(nullptr), DotDebugLocOffset(~0U), MInsn(DbgValue),
+ FrameIndex(~0), DD(DD) {}
// Accessors.
DIVariable getVariable() const { return Var; }
+ DIExpression getExpression() const { return Expr; }
void setDIE(DIE &D) { TheDIE = &D; }
DIE *getDIE() const { return TheDIE; }
void setDotDebugLocOffset(unsigned O) { DotDebugLocOffset = O; }
bool variableHasComplexAddress() const {
assert(Var.isVariable() && "Invalid complex DbgVariable!");
- return Var.hasComplexAddress();
+ return Expr.getNumElements() > 0;
}
bool isBlockByrefVariable() const;
unsigned getNumAddrElements() const {
assert(Var.isVariable() && "Invalid complex DbgVariable!");
- return Var.getNumAddrElements();
+ return Expr.getNumElements();
}
- uint64_t getAddrElement(unsigned i) const { return Var.getAddrElement(i); }
+ uint64_t getAddrElement(unsigned i) const { return Expr.getElement(i); }
DIType getType() const;
private:
// can refer to them in spite of insertions into this list.
SmallVector<DebugLocList, 4> DotDebugLocEntries;
- // Collection of subprogram DIEs that are marked (at the end of the module)
- // as DW_AT_inline.
- SmallPtrSet<DIE *, 4> InlinedSubprogramDIEs;
-
// This is a collection of subprogram MDNodes that are processed to
// create DIEs.
SmallPtrSet<const MDNode *, 16> ProcessedSPNodes;
// If nonnull, stores the current machine instruction we're processing.
const MachineInstr *CurMI;
- // If nonnull, stores the section that the previous function was allocated to
- // emitting.
- const MCSection *PrevSection;
-
// If nonnull, stores the CU in which the previous subprogram was contained.
const DwarfCompileUnit *PrevCU;
// True iff there are multiple CUs in this module.
bool SingleCU;
+ bool IsDarwin;
AddressPool AddrPool;
void ensureAbstractVariableIsCreatedIfScoped(const DIVariable &Var,
const MDNode *Scope);
- /// \brief Find DIE for the given subprogram and attach appropriate
- /// DW_AT_low_pc and DW_AT_high_pc attributes. If there are global
- /// variables in this scope then create and insert DIEs for these
- /// variables.
- DIE &updateSubprogramScopeDIE(DwarfCompileUnit &SPCU, DISubprogram SP);
-
- /// \brief A helper function to check whether the DIE for a given Scope is
- /// going to be null.
- bool isLexicalScopeDIENull(LexicalScope *Scope);
-
- /// \brief A helper function to construct a RangeSpanList for a given
- /// lexical scope.
- void addScopeRangeList(DwarfCompileUnit &TheCU, DIE &ScopeDIE,
- const SmallVectorImpl<InsnRange> &Range);
-
- /// \brief Construct new DW_TAG_lexical_block for this scope and
- /// attach DW_AT_low_pc/DW_AT_high_pc labels.
- std::unique_ptr<DIE> constructLexicalScopeDIE(DwarfCompileUnit &TheCU,
- LexicalScope *Scope);
-
- /// \brief This scope represents inlined body of a function. Construct
- /// DIE to represent this concrete inlined copy of the function.
- std::unique_ptr<DIE> constructInlinedScopeDIE(DwarfCompileUnit &TheCU,
- LexicalScope *Scope);
-
- /// \brief Construct a DIE for this scope.
- void constructScopeDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope,
- SmallVectorImpl<std::unique_ptr<DIE>> &FinalChildren);
- DIE *createAndAddScopeChildren(DwarfCompileUnit &TheCU, LexicalScope *Scope,
- DIE &ScopeDIE);
/// \brief Construct a DIE for this abstract scope.
void constructAbstractSubprogramScopeDIE(DwarfCompileUnit &TheCU,
LexicalScope *Scope);
- /// \brief Construct a DIE for this subprogram scope.
- DIE &constructSubprogramScopeDIE(DwarfCompileUnit &TheCU,
- LexicalScope *Scope);
- /// A helper function to create children of a Scope DIE.
- DIE *createScopeChildrenDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope,
- SmallVectorImpl<std::unique_ptr<DIE>> &Children,
- unsigned *ChildScopeCount = nullptr);
-
/// \brief Emit initial Dwarf sections with a label at the start of each one.
void emitSectionLabels();
/// the line matrix.
void emitEndOfLineMatrix(unsigned SectionEnd);
+ /// \brief Emit a specified accelerator table.
+ void emitAccel(DwarfAccelTable &Accel, const MCSection *Section,
+ StringRef TableName, StringRef SymName);
+
/// \brief Emit visible names into a hashed accelerator table section.
void emitAccelNames();
void constructAndAddImportedEntityDIE(DwarfCompileUnit &TheCU,
const MDNode *N);
- /// \brief Construct import_module DIE.
- std::unique_ptr<DIE>
- constructImportedEntityDIE(DwarfCompileUnit &TheCU,
- const DIImportedEntity &Module);
-
/// \brief Register a source line with debug info. Returns the unique
/// label that was emitted and which provides correspondence to the
/// source line list.
LabelsBeforeInsn.insert(std::make_pair(MI, nullptr));
}
- /// \brief Return Label preceding the instruction.
- MCSymbol *getLabelBeforeInsn(const MachineInstr *MI);
-
/// \brief Ensure that a label will be emitted after MI.
void requestLabelAfterInsn(const MachineInstr *MI) {
LabelsAfterInsn.insert(std::make_pair(MI, nullptr));
}
- /// \brief Return Label immediately following the instruction.
- MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
-
- void attachRangesOrLowHighPC(DwarfCompileUnit &Unit, DIE &D,
- const SmallVectorImpl<InsnRange> &Ranges);
- void attachLowHighPC(DwarfCompileUnit &Unit, DIE &D, const MCSymbol *Begin,
- const MCSymbol *End);
-
public:
//===--------------------------------------------------------------------===//
// Main entry points.
/// Returns the section symbol for the .debug_loc section.
MCSymbol *getDebugLocSym() const { return DwarfDebugLocSectionSym; }
- /// Returns the previous section that was emitted into.
- const MCSection *getPrevSection() const { return PrevSection; }
+ /// Returns the section symbol for the .debug_str section.
+ MCSymbol *getDebugStrSym() const { return DwarfStrSectionSym; }
+
+ /// Returns the section symbol for the .debug_ranges section.
+ MCSymbol *getRangeSectionSym() const { return DwarfDebugRangeSectionSym; }
/// Returns the previous CU that was being updated
const DwarfCompileUnit *getPrevCU() const { return PrevCU; }
+ void setPrevCU(const DwarfCompileUnit *PrevCU) { this->PrevCU = PrevCU; }
/// Returns the entries for the .debug_loc section.
const SmallVectorImpl<DebugLocList> &
void addAccelNamespace(StringRef Name, const DIE &Die);
void addAccelType(StringRef Name, const DIE &Die, char Flags);
+
+ const MachineFunction *getCurrentFunction() const { return CurFn; }
+ const MCSymbol *getFunctionBeginSym() const { return FunctionBeginSym; }
+ const MCSymbol *getFunctionEndSym() const { return FunctionEndSym; }
+
+ iterator_range<ImportedEntityMap::const_iterator>
+ findImportedEntitiesForScope(const MDNode *Scope) const {
+ return make_range(std::equal_range(
+ ScopesWithImportedEntities.begin(), ScopesWithImportedEntities.end(),
+ std::pair<const MDNode *, const MDNode *>(Scope, nullptr),
+ less_first()));
+ }
+
+ /// \brief A helper function to check whether the DIE for a given Scope is
+ /// going to be null.
+ bool isLexicalScopeDIENull(LexicalScope *Scope);
+
+ /// \brief Return Label preceding the instruction.
+ MCSymbol *getLabelBeforeInsn(const MachineInstr *MI);
+
+ /// \brief Return Label immediately following the instruction.
+ MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
+
+ // FIXME: Consider rolling ranges up into DwarfDebug since we use a single
+ // range_base anyway, so there's no need to keep them as separate per-CU range
+ // lists. (though one day we might end up with a range.dwo section, in which
+ // case it'd go to DwarfFile)
+ unsigned getNextRangeNumber() { return GlobalRangeCount++; }
+
+ // FIXME: Sink these functions down into DwarfFile/Dwarf*Unit.
+
+ DenseMap<const MDNode *, DIE *> &getAbstractSPDies() {
+ return AbstractSPDies;
+ }
+
+ ScopeVariablesMap &getScopeVariables() { return ScopeVariables; }
+
+ SmallPtrSet<const MDNode *, 16> &getProcessedSPNodes() {
+ return ProcessedSPNodes;
+ }
+
+ SmallVector<DbgVariable *, 8> &getCurrentFnArguments() {
+ return CurrentFnArguments;
+ }
};
} // End of namespace llvm
projects / oota-llvm.git / blobdiff