1 // RUN: %clang -### %s -fno-optimize-sibling-calls 2> %t 2 // RUN: FileCheck --check-prefix=CHECK-NOSC < %t %s 3 // CHECK-NOSC: "-mdisable-tail-calls" 4 5 // RUN: %clang -### -foptimize-sibling-calls %s 2> %t 6 // RUN: FileCheck --check-prefix=CHECK-OSC < %t %s 7 // CHECK-OSC-NOT: "-mdisable-tail-calls" 8 9