https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124514 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- So this was tried (or rather looked at before): https://inbox.sourceware.org/gcc/FA388EC7-0DBB-11D9-8B78-000A95B1F520@apple.com/ I don't remember how far it went after the above change.