RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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

RE: Make MIPS soft-fp preserve NaN payloads for NAN2008

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