Re: [Qemu-devel] [PATCH] target-mips: silence NaNs for cvt.s.d and cvt.d.s

[Peter Maydell]

On 24 January 2016 at 03:42, Maciej W. Rozycki <address@hidden> wrote:
>
>  FYI, I posted a more general fix to this a while ago, however the review
> regrettably went nowhere.  See the archive of discussion starting at:
> <http://lists.nongnu.org/archive/html/qemu-devel/2014-12/msg00969.html>
> for details, including the justification and further design consideration.

The relevant review is in this bit of the thread
http://lists.nongnu.org/archive/html/qemu-devel/2015-02/msg00897.html
(which you can't trivially get to from the original top level post
since the mailing list archive regrettably splits archives by month
and doesn't track threads between months).

ARM does the same thing that this patch does for MIPS (silence
NaNs in the calling function after the conversion happens), but as
I mention in that email this is broken and really should be dealt
with via target-specific hooks in the conversion routines.

thanks
-- PMM