[cfe-commits] r103463 - /cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp

[Chandler Carruth]

Author: chandlerc
Date: Tue May 11 03:02:08 2010
New Revision: 103463

URL: http://llvm.org/viewvc/llvm-project?rev=103463&view=rev
Log:
Add a test for a subtle instantiation pattern that showed up within a Boost
miscompile reduction. Clang already handles this correctly, but let's make sure
it stays that way.

Added:
    cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp

Added: cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp?rev=103463&view=auto
==============================================================================
--- cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp (added)
+++ cfe/trunk/test/SemaTemplate/instantiate-overload-candidates.cpp Tue May 11 03:02:08 2010
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// This is the function actually selected during overload resolution, and the
+// only one defined.
+template <typename T> void f(T*, int) {}
+
+template <typename T> struct S;
+template <typename T> struct S_ : S<T> { typedef int type; }; // expected-note{{in instantiation}}
+template <typename T> struct S {
+  // Force T to have a complete type here so we can observe instantiations with
+  // incomplete types.
+  T t; // expected-error{{field has incomplete type}}
+};
+
+// Provide a bad class and an overload that instantiates templates with it.
+class NoDefinition; // expected-note{{forward declaration}}
+template <typename T> S_<NoDefinition>::type f(T*, NoDefinition*); // expected-note{{in instantiation}}
+
+void test(int x) {
+  f(&x, 0);
+}