http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46599
--- Comment #2 from Jeremy <gcc.hall at gmail dot com> 2010-11-22 12:22:48 UTC --- (In reply to comment #1) > -minline-all-stringops isn't supposed to be used (it's for debugging), and > probably doesn't mix well with -Os anyway. OK thanks. I think in this context its a red herring as I get identical results without it for the test program. In my real app, it only seems to add cmpsb and doesn't affect movs, stos, or scas anyway.