https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78561
--- Comment #16 from James Greenhalgh <jgreenhalgh at gcc dot gnu.org> --- Created attachment 40267 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40267&action=edit Proposed Patch Would you mind testing the attached to see if it fixes your issue? I've bootstrapped it on PowerPC myself without any problems, but that's not a strong endorsement of the patch given that I've yet to reproduce your failure!