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add UnionLayout::tag_id_offset

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Folkert 2022-07-22 12:53:24 +02:00
parent b7d78d9237
commit 9c2e6fca0a
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1 changed files with 11 additions and 0 deletions
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11
crates/compiler/mono/src/layout.rs
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@ -629,6 +629,17 @@ impl<'a> UnionLayout<'a> {
(size, alignment_bytes)
}
pub fn tag_id_offset(&self, target_info: TargetInfo) -> Option<u32> {
let data_width = self.data_size_without_tag_id(target_info)?;
// current, broken logic
if data_width > 8 {
Some(round_up_to_alignment(data_width, 8))
} else {
Some(data_width)
}
}
/// Very important to use this when doing a memcpy!
fn stack_size_without_alignment(&self, target_info: TargetInfo) -> u32 {
match self {