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Merge pull request #5211 from Barinzaya/union-custom-align-tag-size

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Consider custom `#align` when determining union tag size
This commit is contained in:
Laytan
2025-06-20 22:31:31 +02:00
committed by GitHub
parent 7d8f41b938 717b9f1578
commit 2995557394
1 changed files with 9 additions and 5 deletions
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14
src/types.cpp
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@@ -3093,11 +3093,15 @@ gb_internal i64 union_tag_size(Type *u) {
compiler_error("how many variants do you have?! %lld", cast(long long)u->Union.variants.count);
}
for_array(i, u->Union.variants) {
Type *variant_type = u->Union.variants[i];
i64 align = type_align_of(variant_type);
if (max_align < align) {
max_align = align;
if (u->Union.custom_align > 0) {
max_align = gb_max(max_align, u->Union.custom_align);
} else {
for_array(i, u->Union.variants) {
Type *variant_type = u->Union.variants[i];
i64 align = type_align_of(variant_type);
if (max_align < align) {
max_align = align;
}
}
}