[Bug rtl-optimization/57321] static function call miscompiled at -Os and above

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57321

--- Comment #1 from Mikael Pettersson <mikpe at it dot uu.se> ---
I can reproduce the wrong-code.  It was fixed on 4.8 branch by r198737 aka
PR56988.