================
@@ -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);
----------------
ChuanqiXu9 wrote:
Yes, this can happen with the two phase compilation of modules
(https://clang.llvm.org/docs/StandardCPlusPlusModules.html#how-to-produce-a-bmi).
Which will compile a `.cppm` file to a `.pcm` file, and we will compile the
`.pcm` file the `.o` file.
The one phase compilation can also happen for modules.
https://github.com/llvm/llvm-project/pull/75912
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