| // RUN: %clang -### %s -fescaping-block-tail-calls -fno-escaping-block-tail-calls 2> %t | |
| // RUN: FileCheck --check-prefix=CHECK-DISABLE < %t %s | |
| // CHECK-DISABLE: "-fno-escaping-block-tail-calls" | |
| // RUN: %clang -### %s -fno-escaping-block-tail-calls -fescaping-block-tail-calls 2> %t | |
| // RUN: FileCheck --check-prefix=CHECK-NO-DISABLE < %t %s | |
| // RUN: %clang -### %s 2> %t | |
| // RUN: FileCheck --check-prefix=CHECK-NO-DISABLE < %t %s | |
| // CHECK-NO-DISABLE-NOT: "-fno-escaping-block-tail-calls" |