http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60413
--- Comment #4 from Ryan Lortie <desrt at desrt dot ca> --- It seems like a good solution to this problem might be to enable -mfpmath=sse by default on arches where SSE is known to be supported and -fexcess-precision=standard otherwise. If people want their binaries to be backwards compatible to machines before the pentium3 then they can pay the price in performance -- at least we would not be violating the standard. This would be nicely mixed with an appeal to distributions to bring their default -march= flag a bit more up to date...
