1 files changed, 40 insertions, 3 deletions
diff --git a/clang/test/SemaCXX/linkage-spec.cpp b/clang/test/SemaCXX/linkage-spec.cpp
index fc14081247a..355a8787931 100644
--- a/clang/test/SemaCXX/linkage-spec.cpp
+++ b/clang/test/SemaCXX/linkage-spec.cpp
@@ -41,20 +41,32 @@ namespace pr5430 {
 using namespace pr5430;
 extern "C" void pr5430::func(void) { }
 
-// PR5404
-int f2(char *)
+// PR5405
+int f2(char *) // expected-note {{here}}
 {
         return 0;
 }
 
 extern "C"
 {
-    int f2(int)
+    int f2(int) // expected-error {{with C language linkage conflicts with declaration in global scope}}
     {
         return f2((char *)0);
     }
 }
 
+namespace PR5405 {
+  int f2b(char *) {
+    return 0;
+  }
+
+  extern "C" {
+    int f2b(int) {
+      return f2b((char *)0); // ok
+    }
+  }
+}
+
 // PR6991
 extern "C" typedef int (*PutcFunc_t)(int);
 
@@ -117,3 +129,28 @@ namespace pr14958 {
 
 extern "C" void PR16167; // expected-error {{variable has incomplete type 'void'}}
 extern void PR16167_0; // expected-error {{variable has incomplete type 'void'}}
+
+// PR7927
+enum T_7927 {
+  E_7927
+};
+
+extern "C" void f_pr7927(int);
+
+namespace {
+  extern "C" void f_pr7927(int);
+
+  void foo_pr7927() {
+    f_pr7927(E_7927);
+    f_pr7927(0);
+    ::f_pr7927(E_7927);
+    ::f_pr7927(0);
+  }
+}
+
+void bar_pr7927() {
+  f_pr7927(E_7927);
+  f_pr7927(0);
+  ::f_pr7927(E_7927);
+  ::f_pr7927(0);
+}