1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/flatten.c b/test/CodeGen/flatten.c
new file mode 100644
index 000000000000..d766d543e01d
--- /dev/null
+++ b/test/CodeGen/flatten.c
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -triple=x86_64-linux-gnu %s -emit-llvm -o - | FileCheck %s
+
+void f(void) {}
+
+__attribute__((noinline)) void ni(void) {}
+
+__attribute__((flatten))
+// CHECK: define void @g()
+void g(void) {
+  // CHECK-NOT: call {{.*}} @f
+  f();
+  // CHECK: call {{.*}} @ni
+  ni();
+}
+
+void h(void) {
+  // CHECK: call {{.*}} @f
+  f();
+}