cbbaf4aefa
PR middle-end/20371: * tree.h (record_layout_info_s): New member prev_packed. * stor-layout.c (update_alignment_for_field): Fix comment about KNOWN_ALIGN. For MS bitfields, if we start a new run, make sure we start it properly aligned. (place_field): At the beginning of a record, pass 0 as KNOWN_ALIGN to update_alignment_for_field, and recompute it afterwards using the alignment of the record. When a packed bitfield precedes an MS bitfield, don't add padding at the end of the packed bitfield on behalf of the base type of the packed bit field. Don't adjust rli->bitpos at the end of an MS bitfield run if we already adjusted bitpos/offset for an alignment as large or larger than the bitfield type size. Take possible record alignment > BIGGEST_ALIGNMENT into account when calculating actual_align. Only put packed buit fields into rli->prev_field if they end up suitably aligned. Also set rli->remaining_in_alignment when we re-set rli->prev_field. Update rli->remaining_in_alignment when we have already started a run of bit fields and we process a packed bit field. From-SVN: r99574 |
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