| // RUN: %clang -### %s -fno-optimize-sibling-calls 2> %t | |
| // RUN: FileCheck --check-prefix=CHECK-NOSC < %t %s | |
| // CHECK-NOSC: "-mdisable-tail-calls" | |
| // RUN: %clang -### -foptimize-sibling-calls %s 2> %t | |
| // RUN: FileCheck --check-prefix=CHECK-OSC < %t %s | |
| // CHECK-OSC-NOT: "-mdisable-tail-calls" | |