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One MDNode may be used to create regular DIE as well as abstract DIE.
Keep track of abstract subprogram DIEs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107822 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1389,6 +1389,7 @@ static bool isSubprogramContext(const MDNode *Context) {
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DIE *DwarfDebug::updateSubprogramScopeDIE(const MDNode *SPNode) {
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CompileUnit *SPCU = getCompileUnit(SPNode);
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DIE *SPDie = SPCU->getDIE(SPNode);
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assert(SPDie && "Unable to find subprogram DIE!");
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DISubprogram SP(SPNode);
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@ -1422,6 +1423,14 @@ DIE *DwarfDebug::updateSubprogramScopeDIE(const MDNode *SPNode) {
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SPCU->addDie(SPDie);
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}
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// Pick up abstract subprogram DIE.
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if (DIE *AbsSPDIE = AbstractSPDies.lookup(SPNode)) {
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SPDie = new DIE(dwarf::DW_TAG_subprogram);
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addDIEEntry(SPDie, dwarf::DW_AT_abstract_origin,
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dwarf::DW_FORM_ref4, AbsSPDIE);
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SPCU->addDie(SPDie);
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}
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addLabel(SPDie, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr,
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Asm->GetTempSymbol("func_begin", Asm->getFunctionNumber()));
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addLabel(SPDie, dwarf::DW_AT_high_pc, dwarf::DW_FORM_addr,
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@ -1695,8 +1704,12 @@ DIE *DwarfDebug::constructScopeDIE(DbgScope *Scope) {
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ScopeDIE = constructInlinedScopeDIE(Scope);
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else if (DS.isSubprogram()) {
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ProcessedSPNodes.insert(DS);
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if (Scope->isAbstractScope())
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if (Scope->isAbstractScope()) {
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ScopeDIE = getCompileUnit(DS)->getDIE(DS);
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// Note down abstract DIE.
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if (ScopeDIE)
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AbstractSPDies.insert(std::make_pair(DS, ScopeDIE));
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}
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else
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ScopeDIE = updateSubprogramScopeDIE(DS);
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}
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@ -156,6 +156,9 @@ class DwarfDebug {
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/// not included DbgScopeMap. AbstractScopes owns its DbgScope*s.
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DenseMap<const MDNode *, DbgScope *> AbstractScopes;
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/// AbstractSPDies - Collection of abstract subprogram DIEs.
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DenseMap<const MDNode *, DIE *> AbstractSPDies;
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/// AbstractScopesList - Tracks abstract scopes constructed while processing
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/// a function. This list is cleared during endFunction().
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SmallVector<DbgScope *, 4>AbstractScopesList;
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