http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48227
--- Comment #3 from Zuxy <zuxy.meng at gmail dot com> 2011-04-06 13:42:21 UTC --- (In reply to comment #1) > A good question is does it make a difference in actual performance numbers, it > might still make a positive difference. Until someone tries it out and sees > the difference in performance, I am going to say we should keep it. Actually GCC since 4.6 has stopped generating 'rep ret' for all Intel CPUs.
