https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93141
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2020-01-03 Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 47589 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47589&action=edit gcc10-pr93141.patch Untested patch that improves double-word __builtin_add_overflow and thus also the original testcase too. __builtin_sub_overflow is for next week.