Re-commit r270748 "clang-cl: Treat dllimport explicit template instantiation definitions as declarations (PR27810, PR27811)"
Also make explicit instantiation decls not apply to nested classes when
targeting MSVC. That dll attributes are not inherited by inner classes
might be the explanation for MSVC's behaviour here.
llvm-svn: 270897
diff --git a/clang/lib/Sema/SemaTemplateInstantiate.cpp b/clang/lib/Sema/SemaTemplateInstantiate.cpp
index 243fedb..39ea316 100644
--- a/clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -2542,6 +2542,13 @@
== TSK_ExplicitSpecialization)
continue;
+ if (Context.getTargetInfo().getCXXABI().isMicrosoft() &&
+ TSK == TSK_ExplicitInstantiationDeclaration) {
+ // In MSVC mode, explicit instantiation decl of the outer class doesn't
+ // affect the inner class.
+ continue;
+ }
+
if (CheckSpecializationInstantiationRedecl(PointOfInstantiation, TSK,
Record,
MSInfo->getTemplateSpecializationKind(),