[Bug c/85957] i686: Integers appear to be different, but compare as equal

[bugdal at aerifal dot cx]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85957

--- Comment #18 from Rich Felker <bugdal at aerifal dot cx> ---
It was just pointed out to me that this might be an invalid test since GCC
assumes (correctly or not) that the return value of a function does not have
excess precision. I'll see if I can make a better test.