rust/tests/codegen/integer-overflow.rs
2023-01-11 09:32:08 +00:00

27 lines
568 B
Rust

// no-system-llvm
// 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]
}