https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70557
--- Comment #1 from Albert Cahalan <acahalan at gmail dot com> --- For the 32-bit i386, gcc 4.8.4 doesn't zero a pair of registers. I doubt gcc is doing the best for -Os regarding addressing, but at least the i386 is getting better code than the m68k coldfire.
