------- Comment #4 from rguenth at gcc dot gnu dot org 2008-02-04 17:30 ------- Err, yes. We run into count_type_elements:
case UNION_TYPE: case QUAL_UNION_TYPE: { /* Ho hum. How in the world do we guess here? Clearly it isn't right to count the fields. Guess based on the number of words. */ HOST_WIDE_INT n = int_size_in_bytes (type); if (n < 0) return -1; return n / UNITS_PER_WORD; } and get 1 vs. 2 for the struct case. So, giving up in the above case is certainly more correct. Testing the obvious patch. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2008-02-04 17:04:08 |2008-02-04 17:30:38 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33631