From 4d99a3da7ef08be34131b60b91f16adb3bc5f001 Mon Sep 17 00:00:00 2001
From: Gabor Greif <ggreif@gmail.com>
Date: Sat, 28 Aug 2010 12:12:45 +0000
Subject: [PATCH] add another test for PR8007 this is still failing, need to
 come up with a fix (but we are in good company as the first gcc version  pass
 this test will be v4.6)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112369 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../inject-templated-friend-post.cpp          | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 test/SemaTemplate/inject-templated-friend-post.cpp

diff --git a/test/SemaTemplate/inject-templated-friend-post.cpp b/test/SemaTemplate/inject-templated-friend-post.cpp
new file mode 100644
index 0000000000..bbb80d15fc
--- /dev/null
+++ b/test/SemaTemplate/inject-templated-friend-post.cpp
@@ -0,0 +1,58 @@
+// RUN: %clang %s -S -emit-llvm -o - | grep -e "define linkonce_odr.*_ZlsR11std_ostreamRK8StreamerI3FooE"
+// RUN: %clang -cc1 %s -DREDEFINE -verify
+// PR8007: friend function not instantiated, reordered version.
+// Corresponds to http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38392
+// XFAIL: *
+
+struct std_ostream
+{
+  int dummy;
+};
+
+std_ostream cout;
+
+template <typename STRUCT_TYPE>
+struct Streamer;
+
+typedef struct Foo {} Foo;
+
+std_ostream& operator << (std_ostream&, const Streamer<Foo>&);
+void test(const Streamer<Foo>& foo)
+{
+    cout << foo;
+}
+
+template <typename STRUCT_TYPE>
+struct Streamer
+{
+    friend std_ostream& operator << (std_ostream& o, const Streamer& f) // expected-error{{redefinition of 'operator<<'}}
+        {
+            Streamer s(f);
+            s(o);
+            return o;
+        }
+
+    Streamer(const STRUCT_TYPE& s) : s(s) {}
+
+    const STRUCT_TYPE& s;
+    void operator () (std_ostream&) const;
+};
+
+template <>
+void Streamer<Foo>::operator () (std_ostream& o) const // expected-note{{requested here}}
+{
+}
+
+int main(void)
+{
+    Foo foo;
+    test(foo);
+}
+
+#ifdef REDEFINE
+std_ostream& operator << (std_ostream& o, const Streamer<Foo>&) // expected-note{{is here}}
+{
+  // Sema should flag this as a redefinition
+  return o;
+}
+#endif
-- 
2.40.0