| // compile-flags: -O |
| // only-x86_64 |
| |
| #![crate_type = "lib"] |
| #![feature(option_as_slice)] |
| |
| extern crate core; |
| |
| use core::num::NonZeroU64; |
| use core::option::Option; |
| |
| // CHECK-LABEL: @u64_opt_as_slice |
| #[no_mangle] |
| pub fn u64_opt_as_slice(o: &Option<u64>) -> &[u64] { |
| // CHECK: start: |
| // CHECK-NOT: select |
| // CHECK: ret |
| o.as_slice() |
| } |
| |
| // CHECK-LABEL: @nonzero_u64_opt_as_slice |
| #[no_mangle] |
| pub fn nonzero_u64_opt_as_slice(o: &Option<NonZeroU64>) -> &[NonZeroU64] { |
| // CHECK: start: |
| // CHECK-NOT: select |
| // CHECK: ret |
| o.as_slice() |
| } |