================
@@ -6853,6 +6853,13 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
if (ES->hasExternalDefinitions(D) == ExternalASTSource::EK_Never)
DI->completeUnusedClass(*CRD);
}
+ // If we're emitting a dynamic class from the importable module we're
+ // emitting, we always need to emit the virtual table according to the ABI
+ // requirement.
+ if (CRD->getDefinition() && CRD->isDynamicClass() &&
+ CRD->isInCurrentModuleUnit())
+ EmitVTable(CRD);
----------------
efriedma-quic wrote:
You mean Sema::DefineUsedVTables doesn't run at all in such cases?
My primary concern here is that having multiple overlapping codepaths is hard
to maintain. If Sema::DefineUsedVTables can't actually force the definition in
all the relevant cases, we should just eliminate HandleVTable.
https://github.com/llvm/llvm-project/pull/75912
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