================
@@ -9180,6 +9180,12 @@ bool Sema::hasAcceptableDefinition(NamedDecl *D,
NamedDecl **Suggested,
if (!getLangOpts().Modules && !getLangOpts().ModulesLocalVisibility)
return true;
+ // The external source may have additional definitions of this entity that
are
+ // visible, so complete the redeclaration chain now.
+ if (auto *Source = Context.getExternalSource()) {
+ Source->CompleteRedeclChain(D);
+ }
----------------
ChuanqiXu9 wrote:
Thanks for the analysis. It looks like the root cause was the DefinitionData
for [4] **was** not updated correctly. So DefinitionData->Definition is a
nullptr.
https://github.com/llvm/llvm-project/pull/129982
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