Preserve the template type parameter name when instantiating a templace.

Fixes PR8489.

llvm-svn: 117776

2 files changed, 13 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 1dbdefca9fc..6e352e71ef6 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -1508,7 +1508,7 @@ Decl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl(
   TemplateTypeParmDecl *Inst =
     TemplateTypeParmDecl::Create(SemaRef.Context, Owner, D->getLocation(),
                                  TTPT->getDepth() - TemplateArgs.getNumLevels(),
-                                 TTPT->getIndex(),TTPT->getName(),
+                                 TTPT->getIndex(), D->getIdentifier(),
                                  D->wasDeclaredWithTypename(),
                                  D->isParameterPack());
 
diff --git a/clang/test/SemaTemplate/instantiate-member-template.cpp b/clang/test/SemaTemplate/instantiate-member-template.cpp
index 8f4063bc71c..e2f72756189 100644
--- a/clang/test/SemaTemplate/instantiate-member-template.cpp
+++ b/clang/test/SemaTemplate/instantiate-member-template.cpp
@@ -203,3 +203,15 @@ namespace PR7669 {
     X<int>::Y<int>::Z<0,int>();
   }
 }
+
+namespace PR8489 {
+  template <typename CT>
+  class C {
+    template<typename FT>
+    void F() {} // expected-note{{FT}}
+  };
+  void f() {
+    C<int> c;
+    c.F(); // expected-error{{no matching member function}}
+  }
+}