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#![feature(rustc_attrs)]
#![feature(transparent_unions)]
use std::marker::PhantomData;
// Regression test for #115664. We want to ensure that `repr(transparent)` wrappers do not affect
// the result of `homogeneous_aggregate`.
type Tuple = (f32, f32, f32);
struct Zst;
#[repr(transparent)]
struct Wrapper1<T>(T);
#[repr(transparent)]
struct Wrapper2<T>((), Zst, T);
#[repr(transparent)]
struct Wrapper3<T>(T, [u8; 0], PhantomData<u64>);
#[repr(transparent)]
union WrapperUnion<T: Copy> {
nothing: (),
something: T,
}
#[rustc_layout(homogeneous_aggregate)]
pub type Test0 = Tuple;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test1 = Wrapper1<Tuple>;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test2 = Wrapper2<Tuple>;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test3 = Wrapper3<Tuple>;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test4 = WrapperUnion<Tuple>;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
fn main() {}
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