https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97360
--- Comment #26 from Peter Bergner <bergner at gcc dot gnu.org> --- (In reply to Andrew Macleod from comment #25) > (In reply to Peter Bergner from comment #24) > > (In reply to Richard Biener from comment #22) > > > tree oi_uns_type = make_unsigned_type (256); > > > - vector_pair_type_node = build_distinct_type_copy (oi_uns_type); > > > SET_TYPE_MODE (vector_pair_type_node, POImode); > > > > So this doesn't work. Without that line vector_pair_type_node is > > NULL and the SET_TYPE_MODE() usage on the next line ends up dereferencing it > > and we SEGV. > > Wonder if it was suppose to be something like: Maybe? :-) I'll report back how the build does with this.