https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91824
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 47729 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47729&action=edit gcc10-pr91824.patch Untested patch to handle zero/sign extension of popcntl.