https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81406
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 42886 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42886&action=edit gcc8-pr81406.patch Fixed with r251220. I'll add this testcase to the testsuite (verified it FAILs with r251218, and succeeds with current trunk) and remove the 8 regression.