[clang] [C++20] [Modules] [Itanium ABI] Generate the vtable in the module unit of dynamic classes (PR #75912)

Chuanqi Xu via cfe-commits cfe-commits at lists.llvm.org
Thu Jun 6 18:39:36 PDT 2024


================
@@ -1830,6 +1830,9 @@ void ItaniumCXXABI::emitVTableDefinitions(CodeGenVTables &CGVT,
   if (VTable->hasInitializer())
     return;
 
+  if (RD->shouldEmitInExternalSource())
+    return;
----------------
ChuanqiXu9 wrote:

> Also, even if the vtable is getting emitted somewhere else, we might want an available_externally vtable.

Out of curiosity, is it helpful to have an available_externally vtable?

https://github.com/llvm/llvm-project/pull/75912


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