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i386 64-bit scalar alignment

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kalsprite
2026-08-12 23:08:26 -07:00
parent 9a2164ac2e
commit 8470c6eda2
1 changed files with 7 additions and 1 deletions
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8
src/types.cpp
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@@ -4539,7 +4539,13 @@ gb_internal i64 type_align_of_internal(Type *t, TypePath *path) {
// NOTE(bill): Things that are bigger than build_context.ptr_size, are actually comprised of smaller types
// TODO(bill): Is this correct for 128-bit types (integers)?
return gb_clamp(next_pow2(type_size_of_internal(t, path)), 1, build_context.max_align);
i64 max_align = build_context.max_align;
if (build_context.metrics.arch == TargetArch_i386 &&
build_context.metrics.os != TargetOs_windows) {
// the i386 System V psABI aligns every scalar to at most 4, unlike Windows
max_align = gb_min(max_align, 4);
}
return gb_clamp(next_pow2(type_size_of_internal(t, path)), 1, max_align);
}
gb_internal i64 *type_set_offsets_of(Slice<Entity *> const &fields, bool is_packed, bool is_raw_union, i64 min_field_align, i64 max_field_align) {