| #![feature(llvm_asm)] | |
| #![crate_type="lib"] | |
| #[deny(unreachable_code)] | |
| pub fn exit(n: usize) -> i32 { | |
| unsafe { | |
| // Pretend this asm is an exit() syscall. | |
| llvm_asm!("" :: "r"(n) :: "volatile"); | |
| // Can't actually reach this point, but rustc doesn't know that. | |
| } | |
| // This return value is just here to generate some extra code for a return | |
| // value, making it easier for the test script to detect whether the | |
| // compiler deleted it. | |
| 42 | |
| } |