Error when evaluating an enum discriminant containing arithmetic operations

[sakupan102]

Summary

An error occurs when evaluating an enum discriminant containing arithmetic operations.

Reproducer

I tried this code:

enum Foo {
    Bar = 3 + 12,
}

fn main() {
    let x = Foo::Bar;
}

Does the code make use of any (1.49) nightly feature ?

• [ ] Nightly

Godbolt link

No response

Actual behavior

crab1: error: the value of 'RUSTTMP.1' is not usable in a constant expression

Expected behavior

success

GCC Version

gccrs version: b79c452e07c

[sakupan102]

Could you assign this issue to me?