1 files changed, 23 insertions, 0 deletions
diff --git a/clang/test/CodeGen/cfstring.c b/clang/test/CodeGen/cfstring.c
new file mode 100644
index 0000000..9d98b56
--- /dev/null
+++ b/clang/test/CodeGen/cfstring.c
@@ -0,0 +1,23 @@
+// RUN: %clang_cc1 -emit-llvm %s -o %t
+
+// <rdar://problem/10657500>: Check that the backing store of CFStrings are
+// constant with the -fwritable-strings flag.
+//
+// RUN: %clang_cc1 -fwritable-strings -emit-llvm %s -o - | FileCheck %s
+//
+// CHECK: @.str = linker_private unnamed_addr constant [14 x i8] c"Hello, World!\00", align 1
+// CHECK: @.str1 = linker_private unnamed_addr constant [7 x i8] c"yo joe\00", align 1
+// CHECK: @.str3 = linker_private unnamed_addr constant [16 x i8] c"Goodbye, World!\00", align 1
+
+#define CFSTR __builtin___CFStringMakeConstantString
+
+void f() {
+  CFSTR("Hello, World!");
+}
+
+// rdar://6248329
+void *G = CFSTR("yo joe");
+
+void h() {
+  static void* h = CFSTR("Goodbye, World!");
+}