mirror of https://github.com/rust-lang/rust
26 lines
551 B
Rust
26 lines
551 B
Rust
//@ compile-flags: -O -C overflow-checks=on
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
|
|
pub struct S1<'a> {
|
|
data: &'a [u8],
|
|
position: usize,
|
|
}
|
|
|
|
// CHECK-LABEL: @slice_no_index_order
|
|
#[no_mangle]
|
|
pub fn slice_no_index_order<'a>(s: &'a mut S1, n: usize) -> &'a [u8] {
|
|
// CHECK-NOT: slice_index_order_fail
|
|
let d = &s.data[s.position..s.position+n];
|
|
s.position += n;
|
|
return d;
|
|
}
|
|
|
|
// CHECK-LABEL: @test_check
|
|
#[no_mangle]
|
|
pub fn test_check<'a>(s: &'a mut S1, x: usize, y: usize) -> &'a [u8] {
|
|
// CHECK: slice_index_order_fail
|
|
&s.data[x..y]
|
|
}
|