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1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![feature(rustc_attrs)]
12 #![allow(exceeding_bitshifts)]
14 fn black_box
<T
>(_
: T
) {
18 #[rustc_no_mir] // FIXME #29769 MIR overflow checking is TBD.
20 let a
= -std
::i8::MIN
;
21 //~^ WARN attempted to negate with overflow
22 let b
= 200u8 + 200u8 + 200u8;
23 //~^ WARN attempted to add with overflow
24 //~^^ WARN attempted to add with overflow
26 //~^ WARN attempted to multiply with overflow
27 let d
= 42u8 - (42u8 + 1);
28 //~^ WARN attempted to subtract with overflow
30 //~^ ERROR const index-expr is out of bounds