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stack allocate with alignment

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Folkert 2023-09-13 12:46:23 +02:00
parent 1178b281b4
commit 45ce8e4da6
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2 changed files with 51 additions and 13 deletions
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8
crates/compiler/gen_dev/src/generic64/mod.rs
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@ -3724,7 +3724,11 @@ impl<
match union_layout {
UnionLayout::NonRecursive(field_layouts) => {
let id_offset = data_size - data_alignment;
let base_offset = self.storage_manager.claim_stack_area(sym, data_size);
let base_offset = self.storage_manager.claim_stack_area_with_alignment(
sym,
data_size,
data_alignment,
);
let mut current_offset = base_offset;
let it = fields.iter().zip(field_layouts[tag_id as usize].iter());
@ -3746,7 +3750,7 @@ impl<
ASM::mov_reg64_imm64(buf, reg, tag_id as i64);
let total_id_offset = base_offset as u32 + id_offset;
debug_assert!(total_id_offset % data_alignment == 0);
debug_assert_eq!(total_id_offset % data_alignment, 0);
// pick the right instruction based on the alignment of the tag id
if field_layouts.len() <= u8::MAX as _ {