http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43716
--- Comment #36 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-07-21 13:40:09 UTC --- > To me, it looks like invalid test. Any fortraners here to share their opinion? Please read comments #23 and #24. One problem with NaN is that they propagate until something trap them. When did you get a successful compilation?