[Bug bootstrap/57266] [4.9 regression] comparison between signed and unsigned integer expressions in fold_binary_loc breaks m68k bootstrap

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57266

--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> ---
My m68k bootstrap has now recompiled fold-const.c + your patch three times
without warnings or errors.  Thanks for the quick fix.