Unwanted comptime evaluation

[ikskuh]

When using a struct literal in @bitCast, Zig wants to evaluate that literal at comptime:

const T = packed struct {
    val: u8
};
export fn failure(p: u8) u8 {
    return @bitCast(u8, T {
        .val = p, // error: cannot store runtime value in compile time variable
    });
}

// this works
export fn works(p: u8) u8 {
    const t = T {
        .val = p,
    };
    return @bitCast(u8, t);
}

Zig version: 0.5.0+27b290f31

[BarabasGitHub]

I guess this is a similar problem?

test "inline for" {
    var a: [4]f32 = undefined;
    inline for (a) |e|{
    }
}

produces

error: cannot store runtime value in compile time variable
    inline for (a) |e|{
                    ^

I don't see why that should be a comptime variable.

Zig version: 0.5.0+378bf1c3b