1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGenCXX/mangle-ms-back-references.cpp b/test/CodeGenCXX/mangle-ms-back-references.cpp
new file mode 100644
index 0000000000..fdfb3b5bf2
--- /dev/null
+++ b/test/CodeGenCXX/mangle-ms-back-references.cpp
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -fms-extensions -fblocks -emit-llvm %s -o - -cxx-abi microsoft -triple=i386-pc-win32 | FileCheck %s
+
+void f1(const char* a, const char* b) {}
+// CHECK: "\01?f1@@YAXPBD0@Z"
+
+void f2(const char* a, char* b) {}
+// CHECK: "\01?f2@@YAXPBDPAD@Z"
+
+void f3(int a, const char* b, const char* c) {}
+// CHECK: "\01?f3@@YAXHPBD0@Z"
+
+const char *f4(const char* a, const char* b) {}
+// CHECK: "\01?f4@@YAPBDPBD0@Z"
+
+// FIXME: tests for more than 10 types?
+
+struct S {};
+
+void g4(const char* a, struct S* b, const char *c, struct S* d) {}
+// CHECK: "\01?g4@@YAXPBDPAUS@@01@Z"
+
+typedef void (*VoidFunc)();
+
+void foo_ptr(const char* a, const char* b, VoidFunc c, VoidFunc d) {}
+// CHECK: @"\01?foo_ptr@@YAXPBD0P6AXXZ1@Z"
+
+// Make sure that different aliases of built-in types end up mangled as the
+// built-ins.
+typedef unsigned int uintptr_t;
+typedef unsigned int size_t;
+void *h(size_t a, uintptr_t b) {}
+// CHECK: "\01?h@@YAPAXII@Z"