http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57994
Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-07-27 CC| |ghazi at gcc dot gnu.org, | |jsm28 at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- Oh nice. And if I disable by hand the real_isfinite (ra) check in do_mpfr_arg1 I even get 0. And I also checked what happens for sin(Inf) in that case: a -nan as before the hack. Then which is at this point a safe way to proceed? Get in touch with the mpfr people, ask if simplifying infinities has known issues? Tentatively remove the real_isfinite checks from one of the do_mpfr_arg? functions at a time, or even one mathematical function at a time?