Folding constants for floats

[Carter Schonwald]

some of those issues come up even more forcefully when cross compiling from
a   64bit to 32 bit architecture :), but you're absolutely right, and It
sounds like theres a clear near term concensus

Even more fun is in the case of ghc-ios, where ideally a single build would
create the right object code for 64bit + 32bit arm both! I think theres
some subtle fun there! :)


On Tue, Jan 14, 2014 at 4:12 PM, Sven Panne <svenpanne at gmail.com> wrote:

> 2014/1/14 Carter Schonwald <carter.schonwald at gmail.com>:
> > I emphatically and forcefully agree with Isaac. [...]
>
> Yup, I would prefer to no touch FP optimization in a rush, too. I am
> not sure if this is still the case today, but I remember breaking some
> FP stuff in GHC when doing cross-compilation + bootstrapping with it
> ages ago. Can this still happen today? I don't know how GHC is ported
> to a brand new platform nowadays... All the rounding magic etc. has to
> happen as if it was executed on the target platform, not like on the
> platform GHC is running. More fun stuff to consider, I guess. .-)
>
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