| // compile-flags: -O |
| // only-64bit (because the LLVM type of i64 for usize shows up) |
| // ignore-debug: the debug assertions get in the way |
| |
| #![crate_type = "lib"] |
| |
| use std::ops::Range; |
| |
| // CHECK-LABEL: @index_by_range( |
| #[no_mangle] |
| pub fn index_by_range(x: &[u16], r: Range<usize>) -> &[u16] { |
| // CHECK: sub nuw i64 |
| &x[r] |
| } |
| |
| // CHECK-LABEL: @get_unchecked_by_range( |
| #[no_mangle] |
| pub unsafe fn get_unchecked_by_range(x: &[u16], r: Range<usize>) -> &[u16] { |
| // CHECK: sub nuw i64 |
| x.get_unchecked(r) |
| } |
| |
| // CHECK-LABEL: @index_mut_by_range( |
| #[no_mangle] |
| pub fn index_mut_by_range(x: &mut [i32], r: Range<usize>) -> &mut [i32] { |
| // CHECK: sub nuw i64 |
| &mut x[r] |
| } |
| |
| // CHECK-LABEL: @get_unchecked_mut_by_range( |
| #[no_mangle] |
| pub unsafe fn get_unchecked_mut_by_range(x: &mut [i32], r: Range<usize>) -> &mut [i32] { |
| // CHECK: sub nuw i64 |
| x.get_unchecked_mut(r) |
| } |
