| // This test checks an optimization that is not guaranteed to work. This test case should not block | |
| // a future LLVM update. | |
| //@ compile-flags: -O | |
| #![crate_type = "lib"] | |
| #[repr(u8)] | |
| pub enum Exception { | |
| Low = 5, | |
| High = 10, | |
| } | |
| // CHECK-LABEL: @access | |
| #[no_mangle] | |
| pub fn access(array: &[usize; 12], exc: Exception) -> usize { | |
| // CHECK-NOT: panic_bounds_check | |
| array[(exc as u8 - 4) as usize] | |
| } |