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Improve union_tag_size

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gingerBill
2022-02-22 23:01:28 +00:00
parent 62d232d798
commit ad2f1ac24e
1 changed files with 11 additions and 0 deletions
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11
src/types.cpp
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@@ -2623,6 +2623,17 @@ i64 union_tag_size(Type *u) {
// TODO(bill): Is this an okay approach?
i64 max_align = 1;
if (u->Union.variants.count < 1ull<<8) {
max_align = 1;
} else if (u->Union.variants.count < 1ull<<16) {
max_align = 2;
} else if (u->Union.variants.count < 1ull<<32) {
max_align = 4;
} else {
GB_PANIC("how many variants do you have?!");
}
for_array(i, u->Union.variants) {
Type *variant_type = u->Union.variants[i];
i64 align = type_align_of(variant_type);