| 1 | volatile int x; |
| 2 | |
| 3 | void __attribute__((noinline)) sink() { |
| 4 | x++; //% self.filecheck("bt", "main.cpp", "-implicit-check-not=artificial") |
| 5 | // CHECK: frame #0: 0x{{[0-9a-f]+}} a.out`sink() at main.cpp:[[@LINE-1]]:4 |
| 6 | // CHECK-NEXT: func2{{.*}} [artificial] |
| 7 | // CHECK-NEXT: main{{.*}} |
| 8 | } |
| 9 | |
| 10 | void __attribute__((noinline)) func2() { |
| 11 | sink(); /* tail */ |
| 12 | } |
| 13 | |
| 14 | void __attribute__((noinline)) func1() { sink(); /* tail */ } |
| 15 | |
| 16 | int __attribute__((disable_tail_calls)) main(int argc, char **) { |
| 17 | // The sequences `main -> f{1,2} -> sink` are both plausible. Test that |
| 18 | // return-pc call site info allows lldb to pick the correct sequence. |
| 19 | func2(); |
| 20 | if (argc == 100) |
| 21 | func1(); |
| 22 | return 0; |
| 23 | } |
| 24 | |