forked from OSchip/llvm-project
Do not hold on to a map slot while new entries may be inserted into the map.
Use ValueMap, instead of std::map. llvm-svn: 89490
This commit is contained in:
Devang Patel
parent
f46c37c0de
commit
e064ad4741
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@ -60,12 +60,12 @@ class CompileUnit {
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/// GVToDieMap - Tracks the mapping of unit level debug informaton
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/// variables to debug information entries.
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/// FIXME : Rename GVToDieMap -> NodeToDieMap
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std::map<MDNode *, DIE *> GVToDieMap;
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ValueMap<MDNode *, DIE *> GVToDieMap;
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/// GVToDIEEntryMap - Tracks the mapping of unit level debug informaton
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/// descriptors to debug information entries using a DIEEntry proxy.
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/// FIXME : Rename
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std::map<MDNode *, DIEEntry *> GVToDIEEntryMap;
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ValueMap<MDNode *, DIEEntry *> GVToDIEEntryMap;
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/// Globals - A map of globally visible named entities for this unit.
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///
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@ -81,7 +81,7 @@ public:
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// Accessors.
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unsigned getID() const { return ID; }
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DIE* getDie() const { return Die; }
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DIE* getCUDie() const { return Die; }
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StringMap<DIE*> &getGlobals() { return Globals; }
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/// hasContent - Return true if this compile unit has something to write out.
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@ -92,14 +92,22 @@ public:
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///
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void AddGlobal(const std::string &Name, DIE *Die) { Globals[Name] = Die; }
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/// getDieMapSlotFor - Returns the debug information entry map slot for the
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/// getDIE - Returns the debug information entry map slot for the
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/// specified debug variable.
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DIE *&getDieMapSlotFor(MDNode *N) { return GVToDieMap[N]; }
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DIE *getDIE(MDNode *N) { return GVToDieMap.lookup(N); }
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/// insertDIE - Insert DIE into the map.
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void insertDIE(MDNode *N, DIE *D) {
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GVToDieMap.insert(std::make_pair(N, D));
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}
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/// getDIEEntrySlotFor - Returns the debug information entry proxy slot for
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/// the specified debug variable.
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DIEEntry *&getDIEEntrySlotFor(MDNode *N) {
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return GVToDIEEntryMap[N];
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/// getDIEEntry - Returns the debug information entry for the speciefied
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/// debug variable.
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DIEEntry *getDIEEntry(MDNode *N) { return GVToDIEEntryMap.lookup(N); }
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/// insertDIEEntry - Insert debug information entry into the map.
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void insertDIEEntry(MDNode *N, DIEEntry *E) {
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GVToDIEEntryMap.insert(std::make_pair(N, E));
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}
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/// AddDie - Adds or interns the DIE to the compile unit.
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@ -846,7 +854,7 @@ void DwarfDebug::AddType(CompileUnit *DW_Unit, DIE *Entity, DIType Ty) {
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return;
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// Check for pre-existence.
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DIEEntry *&Slot = DW_Unit->getDIEEntrySlotFor(Ty.getNode());
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DIEEntry *Slot = DW_Unit->getDIEEntry(Ty.getNode());
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// If it exists then use the existing value.
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if (Slot) {
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@ -856,6 +864,7 @@ void DwarfDebug::AddType(CompileUnit *DW_Unit, DIE *Entity, DIType Ty) {
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// Set up proxy.
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Slot = CreateDIEEntry();
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DW_Unit->insertDIEEntry(Ty.getNode(), Slot);
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// Construct type.
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DIE Buffer(dwarf::DW_TAG_base_type);
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@ -872,7 +881,7 @@ void DwarfDebug::AddType(CompileUnit *DW_Unit, DIE *Entity, DIType Ty) {
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DIE *Die = NULL;
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DIDescriptor Context = Ty.getContext();
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if (!Context.isNull())
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Die = DW_Unit->getDieMapSlotFor(Context.getNode());
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Die = DW_Unit->getDIE(Context.getNode());
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if (Die) {
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DIE *Child = new DIE(Buffer);
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@ -1236,8 +1245,7 @@ DIE *DwarfDebug::CreateSubprogramDIE(CompileUnit *DW_Unit,
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}
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// DW_TAG_inlined_subroutine may refer to this DIE.
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DIE *&Slot = DW_Unit->getDieMapSlotFor(SP.getNode());
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Slot = SPDie;
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DW_Unit->insertDIE(SP.getNode(), SPDie);
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return SPDie;
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}
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@ -1407,7 +1415,7 @@ static DISubprogram getDISubprogram(MDNode *N) {
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DIE *DwarfDebug::UpdateSubprogramScopeDIE(MDNode *SPNode) {
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DIE *SPDie = ModuleCU->getDieMapSlotFor(SPNode);
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DIE *SPDie = ModuleCU->getDIE(SPNode);
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assert (SPDie && "Unable to find subprogram DIE!");
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AddLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
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DWLabel("func_begin", SubprogramCount));
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@ -1475,7 +1483,7 @@ DIE *DwarfDebug::ConstructInlinedScopeDIE(DbgScope *Scope) {
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DIE *ScopeDIE = new DIE(dwarf::DW_TAG_inlined_subroutine);
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DISubprogram InlinedSP = getDISubprogram(DS.getNode());
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DIE *&OriginDIE = ModuleCU->getDieMapSlotFor(InlinedSP.getNode());
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DIE *OriginDIE = ModuleCU->getDIE(InlinedSP.getNode());
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assert (OriginDIE && "Unable to find Origin DIE!");
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AddDIEEntry(ScopeDIE, dwarf::DW_AT_abstract_origin,
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dwarf::DW_FORM_ref4, OriginDIE);
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@ -1540,7 +1548,7 @@ DIE *DwarfDebug::ConstructVariableDIE(DbgVariable *DV,
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if (AbsDIE) {
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DIScope DS(Scope->getScopeNode());
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DISubprogram InlinedSP = getDISubprogram(DS.getNode());
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DIE *&OriginSPDIE = ModuleCU->getDieMapSlotFor(InlinedSP.getNode());
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DIE *OriginSPDIE = ModuleCU->getDIE(InlinedSP.getNode());
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(void) OriginSPDIE;
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assert (OriginSPDIE && "Unable to find Origin DIE for the SP!");
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DIE *AbsDIE = DV->getAbstractVariable()->getDIE();
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@ -1591,7 +1599,7 @@ DIE *DwarfDebug::ConstructScopeDIE(DbgScope *Scope) {
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ScopeDIE = ConstructInlinedScopeDIE(Scope);
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else if (DS.isSubprogram()) {
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if (Scope->isAbstractScope())
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ScopeDIE = ModuleCU->getDieMapSlotFor(DS.getNode());
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ScopeDIE = ModuleCU->getDIE(DS.getNode());
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else
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ScopeDIE = UpdateSubprogramScopeDIE(DS.getNode());
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}
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@ -1705,17 +1713,16 @@ void DwarfDebug::ConstructGlobalVariableDIE(MDNode *N) {
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return;
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// Check for pre-existence.
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DIE *&Slot = ModuleCU->getDieMapSlotFor(DI_GV.getNode());
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if (Slot)
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if (ModuleCU->getDIE(DI_GV.getNode()))
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return;
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DIE *VariableDie = CreateGlobalVariableDIE(ModuleCU, DI_GV);
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// Add to map.
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Slot = VariableDie;
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ModuleCU->insertDIE(N, VariableDie);
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// Add to context owner.
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ModuleCU->getDie()->AddChild(VariableDie);
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ModuleCU->getCUDie()->AddChild(VariableDie);
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// Expose as global. FIXME - need to check external flag.
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ModuleCU->AddGlobal(DI_GV.getName(), VariableDie);
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@ -1726,8 +1733,7 @@ void DwarfDebug::ConstructSubprogram(MDNode *N) {
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DISubprogram SP(N);
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// Check for pre-existence.
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DIE *&Slot = ModuleCU->getDieMapSlotFor(N);
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if (Slot)
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if (ModuleCU->getDIE(N))
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return;
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if (!SP.isDefinition())
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@ -1738,10 +1744,10 @@ void DwarfDebug::ConstructSubprogram(MDNode *N) {
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DIE *SubprogramDie = CreateSubprogramDIE(ModuleCU, SP);
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// Add to map.
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Slot = SubprogramDie;
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ModuleCU->insertDIE(N, SubprogramDie);
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// Add to context owner.
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ModuleCU->getDie()->AddChild(SubprogramDie);
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ModuleCU->getCUDie()->AddChild(SubprogramDie);
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// Expose as global.
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ModuleCU->AddGlobal(SP.getName(), SubprogramDie);
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@ -2290,7 +2296,7 @@ void DwarfDebug::SizeAndOffsets() {
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sizeof(int32_t) + // Offset Into Abbrev. Section
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sizeof(int8_t); // Pointer Size (in bytes)
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SizeAndOffsetDie(ModuleCU->getDie(), Offset, true);
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SizeAndOffsetDie(ModuleCU->getCUDie(), Offset, true);
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CompileUnitOffsets[ModuleCU] = 0;
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}
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@ -2402,7 +2408,7 @@ void DwarfDebug::EmitDIE(DIE *Die) {
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/// EmitDebugInfo / EmitDebugInfoPerCU - Emit the debug info section.
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///
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void DwarfDebug::EmitDebugInfoPerCU(CompileUnit *Unit) {
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DIE *Die = Unit->getDie();
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DIE *Die = Unit->getCUDie();
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// Emit the compile units header.
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EmitLabel("info_begin", Unit->getID());
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