bjoernager/rust
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repr(align) <= 4 should still be byval

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This commit is contained in:
Erik Desjardins 2023-06-11 17:05:26 -04:00
parent 2591c30eaf
commit 7e933b4e26
13 changed files with 120 additions and 107 deletions
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18
compiler/rustc_abi/src/layout.rs
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@ -40,7 +40,7 @@ pub trait LayoutCalculator {
largest_niche,
align,
size,
has_repr_align: false,
repr_align: None,
}
}
@ -123,7 +123,7 @@ pub trait LayoutCalculator {
largest_niche: None,
align: dl.i8_align,
size: Size::ZERO,
has_repr_align: false,
repr_align: None,
}
}
@ -424,7 +424,7 @@ pub trait LayoutCalculator {
largest_niche,
size,
align,
has_repr_align: repr.align.is_some(),
repr_align: repr.align,
};
Some(TmpLayout { layout, variants: variant_layouts })
@ -694,7 +694,7 @@ pub trait LayoutCalculator {
abi,
align,
size,
has_repr_align: repr.align.is_some(),
repr_align: repr.align,
};
let tagged_layout = TmpLayout { layout: tagged_layout, variants: layout_variants };
@ -813,7 +813,7 @@ pub trait LayoutCalculator {
largest_niche: None,
align,
size: size.align_to(align.abi),
has_repr_align: repr.align.is_some(),
repr_align: repr.align,
})
}
}
@ -1111,9 +1111,9 @@ fn univariant(
abi = Abi::Uninhabited;
}
let has_repr_align = repr.align.is_some()
|| repr.transparent()
&& layout_of_single_non_zst_field.map_or(false, |l| l.has_repr_align());
let repr_align = repr.align.or_else(|| {
if repr.transparent() { layout_of_single_non_zst_field?.repr_align() } else { None }
});
Some(LayoutS {
variants: Variants::Single { index: FIRST_VARIANT },
@ -1122,7 +1122,7 @@ fn univariant(
largest_niche,
align,
size,
has_repr_align,
repr_align,
})
}