mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-11 16:15:03 +00:00
33 lines
590 B
Rust
33 lines
590 B
Rust
//@ run-pass
|
|
//@ compile-flags: -C opt-level=1
|
|
|
|
// Make sure LLVM does not miscompile this match.
|
|
fn main() {
|
|
enum Bits {
|
|
None = 0x00,
|
|
Low = 0x40,
|
|
High = 0x80,
|
|
Both = 0xC0,
|
|
}
|
|
|
|
let value = Box::new(0x40u8);
|
|
let mut out = Box::new(0u8);
|
|
|
|
let bits = match *value {
|
|
0x00 => Bits::None,
|
|
0x40 => Bits::Low,
|
|
0x80 => Bits::High,
|
|
0xC0 => Bits::Both,
|
|
_ => return,
|
|
};
|
|
|
|
match bits {
|
|
Bits::None | Bits::Low => {
|
|
*out = 1;
|
|
}
|
|
_ => (),
|
|
}
|
|
|
|
assert_eq!(*out, 1);
|
|
}
|