On Wed, 11 Jan 2017, Maciej W. Rozycki wrote:
> > > In any case, the soft-fp change is relevant in the hard-float case as
> > > well, to make software TFmode behave consistently with hardware SFmode
> > > and DFmode regarding NaN payload preservation.
>
> Is mixing TFmode, DFmode and SFmode oper
Maciej Rozycki writes:
> On Thu, 5 Jan 2017, Matthew Fortune wrote:
> > It is true to say that users are discouraged from using 2008-NaN with
> > soft-float for pre-R6 architectures simply to avoid further fragmentation
> > of software for no real gain. However, for R6 then soft-float is 2008-NaN
On Thu, 5 Jan 2017, Matthew Fortune wrote:
> > > AFAIR we deliberately decided not to define a 2008-NaN soft-float
> > > ABI, and chose to require all soft-float binaries to use the legacy
> > encoding.
> >
> > Soft-float and 2008-NaN are naturally completely orthogonal and the
> > combination w
Joseph Myers writes:
> On Wed, 4 Jan 2017, Maciej W. Rozycki wrote:
>
> > AFAIR we deliberately decided not to define a 2008-NaN soft-float
> > ABI, and chose to require all soft-float binaries to use the legacy
> encoding.
>
> Soft-float and 2008-NaN are naturally completely orthogonal and the
On Wed, 4 Jan 2017, Maciej W. Rozycki wrote:
> AFAIR we deliberately decided not to define a 2008-NaN soft-float ABI,
> and chose to require all soft-float binaries to use the legacy encoding.
Soft-float and 2008-NaN are naturally completely orthogonal and the
combination works fine (of course
On Wed, 4 Jan 2017, Matthew Fortune wrote:
> > The MIPS sfp-machine.h has an _FP_CHOOSENAN implementation which
> > emulates hardware semantics of not preserving signaling NaN payloads for
> > an operation with two NaN arguments (although that doesn't suffice to
> > avoid sNaN payload preservation
Joseph Myers writes:
> The MIPS sfp-machine.h has an _FP_CHOOSENAN implementation which
> emulates hardware semantics of not preserving signaling NaN payloads for
> an operation with two NaN arguments (although that doesn't suffice to
> avoid sNaN payload preservation in any case with just one NaN
