https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97292
--- Comment #14 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
So this really seems that the alias set 6 is not conflicting with alias sets
11 or 13. active_cell is
struct active_cell_iterator active_cell;
and the code around seems SRA injected
MEM[(struct TriaRawIterator *)&active_cell] ={v} {CLOBBER};
MEM <struct DoFHandler *> [(struct DoFCellAccessor *)&active_cell] =
cell$dof_handler_253;
MEM <int> [(struct DoFCellAccessor *)&active_cell + 8B] =
cell$8$present_level_242;
MEM <int> [(struct DoFCellAccessor *)&active_cell + 12B] =
cell$8$present_index_245;
MEM <const struct Triangulation *> [(struct DoFCellAccessor *)&active_cell +
16B] = cell$8$tria_244;
operator++ (&active_cell);
MEM[(struct TriaRawIterator *)&D.17355].accessor = MEM[(const struct
TriaRawIterator &)&active_cell].accessor;
and we CSE is acrss the call
Honza