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#![feature(rustc_attrs)]
// Regression test for #56877. We want to ensure that the presence of
// `PhantomData` does not prevent `Bar` from being considered a
// homogeneous aggregate.
#[repr(C)]
pub struct BaseCase {
pub a: f32,
pub b: f32,
}
#[repr(C)]
pub struct WithPhantomData {
pub a: f32,
pub b: f32,
pub _unit: std::marker::PhantomData<()>,
}
pub struct EmptyRustStruct {}
#[repr(C)]
pub struct WithEmptyRustStruct {
pub a: f32,
pub b: f32,
pub _unit: EmptyRustStruct,
}
pub struct TransitivelyEmptyRustStruct {
field: EmptyRustStruct,
array: [u32; 0],
}
#[repr(C)]
pub struct WithTransitivelyEmptyRustStruct {
pub a: f32,
pub b: f32,
pub _unit: TransitivelyEmptyRustStruct,
}
pub enum EmptyRustEnum {
Dummy,
}
#[repr(C)]
pub struct WithEmptyRustEnum {
pub a: f32,
pub b: f32,
pub _unit: EmptyRustEnum,
}
#[rustc_layout(homogeneous_aggregate)]
pub type Test1 = BaseCase;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test2 = WithPhantomData;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test3 = WithEmptyRustStruct;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test4 = WithTransitivelyEmptyRustStruct;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
#[rustc_layout(homogeneous_aggregate)]
pub type Test5 = WithEmptyRustEnum;
//~^ ERROR homogeneous_aggregate: Ok(Homogeneous(Reg { kind: Float, size: Size(4 bytes) }))
fn main() {}
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