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// compile-flags: -Z print-type-sizes
// build-pass
// ignore-pass
// ^-- needed because `--pass check` does not emit the output needed.
// FIXME: consider using an attribute instead of side-effects.
// This file illustrates how padding is handled: alignment
// requirements can lead to the introduction of padding, either before
// fields or at the end of the structure as a whole.
//
// It avoids using u64/i64 because on some targets that is only 4-byte
// aligned (while on most it is 8-byte aligned) and so the resulting
// padding and overall computed sizes can be quite different.
#![feature(start)]
#![allow(dead_code)]
#[repr(align(16))]
#[derive(Default)]
struct A(i32);
enum E {
A(i32),
B(A)
}
#[derive(Default)]
struct S {
a: i32,
b: i32,
c: A,
d: i8,
}
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
let _s: S = Default::default();
0
}
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