[Bug tree-optimization/68130] [6 Regression] gfortran.dg/ieee/ieee_2.f90 is miscomputed with '-Os -m32' on x86_64-apple-darwin14 after r228971

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68130

--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
This PR seems fixed/papered over by the patch at
https://gcc.gnu.org/ml/fortran/2015-10/msg00163.html.