rust/src/test/ui/mir/mir_overflow_off.rs

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// run-pass
// compile-flags: -Z force-overflow-checks=off
2018-05-08 08:10:16 -05:00
// Test that with MIR codegen, overflow checks can be
// turned off, even when they're from core::ops::*.
use std::ops::*;
fn main() {
assert_eq!(i8::neg(-0x80), -0x80);
assert_eq!(u8::add(0xff, 1), 0_u8);
assert_eq!(u8::sub(0, 1), 0xff_u8);
assert_eq!(u8::mul(0xff, 2), 0xfe_u8);
assert_eq!(u8::shl(1, 9), 2_u8);
assert_eq!(u8::shr(2, 9), 1_u8);
}