Don't produce a vtable for a class if we have an explicit template instantiation declaration and no key function. We will produce the vtable at the explicit template instantiation.
Fixes PR6748
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100266 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGVtable.cpp b/lib/CodeGen/CGVtable.cpp
index 2d1c734..fc6d1a8 100644
--- a/lib/CodeGen/CGVtable.cpp
+++ b/lib/CodeGen/CGVtable.cpp
@@ -3146,11 +3146,16 @@
if (KeyFunction->getCanonicalDecl() != MD->getCanonicalDecl())
return;
} else {
+ // If we have no key funcion and this is a explicit instantiation declaration,
+ // we will produce a vtable at the explicit instantiation. We don't need one
+ // here.
+ if (RDKind == clang::TSK_ExplicitInstantiationDeclaration)
+ return;
+
// If this is an explicit instantiation of a method, we don't need a vtable.
// Since we have no key function, we will emit the vtable when we see
// a use, and just defining a function is not an use.
- if ((RDKind == TSK_ImplicitInstantiation ||
- RDKind == TSK_ExplicitInstantiationDeclaration) &&
+ if (RDKind == TSK_ImplicitInstantiation &&
MDKind == TSK_ExplicitInstantiationDefinition)
return;
}