When we're parsing template names as part of base-specifiers, we are

*not* entering the context of the nested-name-specifier. This was
causing us to look into an uninstantiated template that we shouldn't
look into. Fixes PR6376.

llvm-svn: 97524

2 files changed, 20 insertions, 1 deletions

diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index bccfc6ad624..993ec3dfd45 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -1084,7 +1084,7 @@ Parser::BaseResult Parser::ParseBaseSpecifier(DeclPtrTy ClassDecl) {
 
   // Parse optional '::' and optional nested-name-specifier.
   CXXScopeSpec SS;
-  ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, true);
+  ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false);
 
   // The location of the base class itself.
   SourceLocation BaseLoc = Tok.getLocation();
diff --git a/clang/test/CXX/temp/temp.decls/temp.mem/p1.cpp b/clang/test/CXX/temp/temp.decls/temp.mem/p1.cpp
index 1b9da84886e..b057eedf93b 100644
--- a/clang/test/CXX/temp/temp.decls/temp.mem/p1.cpp
+++ b/clang/test/CXX/temp/temp.decls/temp.mem/p1.cpp
@@ -14,3 +14,22 @@ int foo() {
   A<bool>::cond = true;
   return A<bool>::B<int>::twice(4);
 }
+
+namespace PR6376 {
+  template<typename T>
+  struct X {
+    template<typename Y>
+    struct Y { };
+  };
+
+  template<>
+  struct X<float> {
+    template<typename Y>
+    struct Y { };
+  };
+
+  template<typename T, typename U>
+  struct Z : public X<T>::template Y<U> { };
+
+  Z<float, int> z0;
+}