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@philipc
Last active November 12, 2017 09:45
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diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index d904372..eea30a7 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -616,6 +616,7 @@ void DwarfCompileUnit::constructAbstractSubprogramScopeDIE(
auto *SP = cast<DISubprogram>(Scope->getScopeNode());
DIE *ContextDIE;
+ DwarfCompileUnit *ContextCU = this;
if (includeMinimalInlineScopes())
ContextDIE = &getUnitDie();
@@ -626,18 +627,23 @@ void DwarfCompileUnit::constructAbstractSubprogramScopeDIE(
else if (auto *SPDecl = SP->getDeclaration()) {
ContextDIE = &getUnitDie();
getOrCreateSubprogramDIE(SPDecl);
- } else
+ } else {
ContextDIE = getOrCreateContextDIE(resolve(SP->getScope()));
+ // The scope may be shared with a subprogram that has already been
+ // constructed in another CU, in which case we need to construct this
+ // subprogram in the same CU.
+ ContextCU = DD->lookupCU(ContextDIE->getUnitDie());
+ }
// Passing null as the associated node because the abstract definition
// shouldn't be found by lookup.
- AbsDef = &createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, nullptr);
- applySubprogramAttributesToDefinition(SP, *AbsDef);
+ AbsDef = &ContextCU->createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, nullptr);
+ ContextCU->applySubprogramAttributesToDefinition(SP, *AbsDef);
- if (!includeMinimalInlineScopes())
- addUInt(*AbsDef, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
- if (DIE *ObjectPointer = createAndAddScopeChildren(Scope, *AbsDef))
- addDIEEntry(*AbsDef, dwarf::DW_AT_object_pointer, *ObjectPointer);
+ if (!ContextCU->includeMinimalInlineScopes())
+ ContextCU->addUInt(*AbsDef, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
+ if (DIE *ObjectPointer = ContextCU->createAndAddScopeChildren(Scope, *AbsDef))
+ ContextCU->addDIEEntry(*AbsDef, dwarf::DW_AT_object_pointer, *ObjectPointer);
}
DIE *DwarfCompileUnit::constructImportedEntityDIE(
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 1e6a25e..45992a3 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -539,6 +539,8 @@ public:
/// A helper function to check whether the DIE for a given Scope is
/// going to be null.
bool isLexicalScopeDIENull(LexicalScope *Scope);
+
+ DwarfCompileUnit *lookupCU(const DIE *Die) { return CUDieMap.lookup(Die); }
};
} // End of namespace llvm
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