http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57974
--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Paolo Carlini from comment #7) > However it's still not clear to me why this inconsistency doesn't happen > with clang or icc, for example. I'm not convinced we are doing our job in > the best way and I don't think we are going to make users happy. It's pretty > easy to internally call in the c++ library or in user code another builtin > which does produce a -inf without the user knowing and then passes it to a > function like exp. If some of our builtins produce something which our other > builtins aren't able to handle consistently we are looking for trouble. But, then -funsafe-math-optimizations shouldn't be used.
