Floating-point comparisons in the middle-end

[FX]

Hi Joseph,

I have a Fortran patch ready to submit, but before I do so I’d like to know: do you support or oppose a __builtin_iseqsig()?
Jakub said he was against, but deferred to you on that.

For me, it makes the Fortran front-end part slightly simpler, so if it is decided to go that route I’ll propose a middle-end + C patch first. But I do not need it absolutely.

Thanks,
FX