| //@ compile-flags: -Copt-level=3 | |
| #![crate_type = "lib"] | |
| // CHECK-LABEL: @slice_fold_to_last | |
| #[no_mangle] | |
| pub fn slice_fold_to_last(slice: &[i32]) -> Option<&i32> { | |
| // CHECK-NOT: loop | |
| // CHECK-NOT: br {{.*}} | |
| // CHECK-NOT: call | |
| // CHECK: ret | |
| slice.iter().fold(None, |_, i| Some(i)) | |
| } |