tests/run-make-fulldeps/intrinsic-unreachable/exit-unreachable.rs

   1 #![feature(core_intrinsics)]
   2 #![crate_type="lib"]
   3 use std::arch::asm;
   4
   5 use std::intrinsics;
   6
   7 #[allow(unreachable_code)]
   8 pub fn exit(n: usize) -> i32 {
   9     unsafe {
  10         // Pretend this asm is an exit() syscall.
  11         asm!("/*{0}*/", in(reg) n);
  12         intrinsics::unreachable()
  13     }
  14     // This return value is just here to generate some extra code for a return
  15     // value, making it easier for the test script to detect whether the
  16     // compiler deleted it.
  17     42
  18 }