[llvm-commits] [PATCH][Review request] IEEE quad software emulation library call

[Anton Korobeynikov]

> Well, the fact that it's in two f64 registers is really a property of
> the calling convention, not a fundamental property of f128... unlike
> f128, ppcf128 is actually a pair of f64's, so it isn't really the best
> example to follow.  I'm not sure the calling convention handling code
> can handle this properly at the moment, though... if nobody else has a
> suggestion, it's okay as-is, I guess, but at least add a comment to
> explain what is going on.
This is definitely a MIPS-specific stuff. There are a lot of examples
of "real" f128, e.g.
Sparc and (removed in ToT) z/System. Thus it should be either
generalized to allow all possible representations, or, perhaps MIPS
can just use ppcf128 as well.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University