[Bug middle-end/60546] [4.8/4.9] O2 & asan enable generates wrong insns

[manjian2006 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60546

--- Comment #16 from linzj <manjian2006 at gmail dot com> ---
Yes,that may work.But what exactly go wrong in the original algorithm? I can't
change a correct algorithm just because it volatiles TBBA and make the compiler
generate wrong code.Because it's CORRECT logically.