3 #![allow(non_upper_case_globals)]
6 * On x86_64-linux-gnu and possibly other platforms, structs get 8-byte "preferred" alignment,
7 * but their "ABI" alignment (i.e., what actually matters for data layout) is the largest alignment
8 * of any field. (Also, `u64` has 8-byte ABI alignment; this is not always true).
10 * On such platforms, if monomorphize uses the "preferred" alignment, then it will unify
11 * `A` and `B`, even though `S<A>` and `S<B>` have the field `t` at different offsets,
12 * and apply the wrong instance of the method `unwrap`.
15 #[derive(Copy, Clone)]
16 struct S<T> { i:u8, t:T }
19 fn unwrap(self) -> T {
24 #[derive(Copy, Clone, PartialEq, Debug)]
27 #[derive(Copy, Clone, PartialEq, Debug)]
31 static Ca: S<A> = S { i: 0, t: A((13, 104)) };
32 static Cb: S<B> = S { i: 0, t: B(31337) };
33 assert_eq!(Ca.unwrap(), A((13, 104)));
34 assert_eq!(Cb.unwrap(), B(31337));