https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87104
--- Comment #13 from Tom Tromey <tromey at gcc dot gnu.org> --- (In reply to pipcet from comment #12) > So I think the performance difference is really significant for Emacs; my > plan is to test all three versions on other programs, make sure the code > works for C bitfields, and then submit it for inclusion. Is that okay? Just as a process comment, you're not too likely to get an answer to this sort of question; instead just go ahead and send the patch and see what the responses are. Thanks for looking into this.