src/test/ui/consts/signed_enum_discr.rs

// run-pass

// https://github.com/rust-lang/rust/issues/49181

#[derive(Eq, PartialEq)]
#[repr(i8)]
pub enum A {
    B = -1,
    C = 1,
}

pub const D: A = A::B;

fn main() {
    match A::C {
        D => {},
        _ => {}
    }
}