Fix PR5716 by bandaging over the solution until we can come back to it.

I apologize for friend declarations.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91359 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 9c4c38a134..8d74bd76ca 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -627,7 +627,12 @@ TemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
   InstTemplate->setAccess(D->getAccess());
   assert(InstTemplate && 
          "VisitFunctionDecl/CXXMethodDecl didn't create a template!");
-  if (!InstTemplate->getInstantiatedFromMemberTemplate())
+
+  // Link the instantiation back to the pattern *unless* this is a
+  // non-definition friend declaration.
+  if (!InstTemplate->getInstantiatedFromMemberTemplate() &&
+      !(InstTemplate->getFriendObjectKind() &&
+        !D->getTemplatedDecl()->isThisDeclarationADefinition()))
     InstTemplate->setInstantiatedFromMemberTemplate(D);
   
   // Add non-friends into the owner.