1 files changed, 62 insertions, 0 deletions
diff --git a/clang/test/SemaOpenCLCXX/address-space-templates.clcpp b/clang/test/SemaOpenCLCXX/address-space-templates.clcpp
new file mode 100644
index 000000000000..0ea1a2a1e4df
--- /dev/null
+++ b/clang/test/SemaOpenCLCXX/address-space-templates.clcpp
@@ -0,0 +1,62 @@
+//RUN: %clang_cc1 %s -pedantic -verify -ast-dump  | FileCheck %s
+
+template <typename T>
+struct S {
+  T a;        // expected-error{{field may not be qualified with an address space}}
+  T f1();     // we ignore address space on a return types.
+  void f2(T); // expected-error{{parameter may not be qualified with an address space}}
+};
+
+template <typename T>
+T foo1(__global T *i) { // expected-note{{candidate template ignored: substitution failure [with T = __local int]: conflicting address space qualifiers are provided between types '__global T' and '__local int'}}
+  return *i;
+}
+
+template <typename T>
+T *foo2(T *i) {
+  return i;
+}
+
+template <typename T>
+void foo3() {
+  __private T ii; // expected-error{{conflicting address space qualifiers are provided between types '__private T' and '__global int'}}
+}
+
+template <class _Tp> struct remove_reference         { typedef _Tp type; };
+template <class _Tp> struct remove_reference<_Tp &>  { typedef _Tp type; };
+template <class _Tp> struct as_pointer {
+    typedef typename remove_reference<_Tp>::type* type;
+};
+
+// Check address space deduction in template parameter deduction.
+struct rep {
+  // When there is no address space on a reference use __generic.
+  // CHECK: |-CXXConstructorDecl {{.*}} rep 'void (const __generic rep &__private){{.*}} __generic'
+  template<class U, class = typename as_pointer<U>::type>
+  rep(U&& v) {}
+};
+
+struct rep_outer : private rep {
+  rep_outer()
+    : rep(0) {}
+};
+
+
+template<class T, class F>
+void foo4(T t, F f){
+  f(t);
+}
+
+void bar() {
+  S<const __global int> sintgl; // expected-note{{in instantiation of template class 'S<const __global int>' requested here}}
+
+  foo1<__local int>(1); // expected-error{{no matching function for call to 'foo1'}}
+  foo2<__global int>(0);
+  foo3<__global int>(); // expected-note{{in instantiation of function template specialization 'foo3<__global int>' requested here}}
+
+  rep_outer r;
+  int i;
+  // Preserve the address space of the type in forwarding reference.
+  // CHECK: CXXMethodDecl {{.*}} operator() 'void (__private int &__private){{.*}} const __generic'
+  foo4(i, [](auto&& x){;});
+}