diff options
Diffstat (limited to 'src/Module.zig')
| -rw-r--r-- | src/Module.zig | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/Module.zig b/src/Module.zig index 34617ed3e2..a92849e127 100644 --- a/src/Module.zig +++ b/src/Module.zig @@ -1368,18 +1368,20 @@ pub const Union = struct { } } payload_align = @maximum(payload_align, 1); - if (!have_tag or fields.len <= 1) return .{ - .abi_size = std.mem.alignForwardGeneric(u64, payload_size, payload_align), - .abi_align = payload_align, - .most_aligned_field = most_aligned_field, - .most_aligned_field_size = most_aligned_field_size, - .biggest_field = biggest_field, - .payload_size = payload_size, - .payload_align = payload_align, - .tag_align = 0, - .tag_size = 0, - .padding = 0, - }; + if (!have_tag or !u.tag_ty.hasRuntimeBits()) { + return .{ + .abi_size = std.mem.alignForwardGeneric(u64, payload_size, payload_align), + .abi_align = payload_align, + .most_aligned_field = most_aligned_field, + .most_aligned_field_size = most_aligned_field_size, + .biggest_field = biggest_field, + .payload_size = payload_size, + .payload_align = payload_align, + .tag_align = 0, + .tag_size = 0, + .padding = 0, + }; + } // Put the tag before or after the payload depending on which one's // alignment is greater. const tag_size = u.tag_ty.abiSize(target); |