[PATCH] rs6000, restrict bfloat convert intrinsic to Power 10. Fix BU_P10V macro definitions.

[Carl Love]

Bill:

On Mon, 2020-08-17 at 13:09 -0500, Bill Schmidt wrote:
> > 
> > There are three prototypes __builtin_cfuged, __builtin_pdepd,
> > __builtin_pextd defined in the document.
> > 
> > The corresponding builtin definitions in  GCC are:
> > 
> >     __builtin_altivec_cfuged, __builtin_altivec_pdepd,
> > __builtin_altivec_pextd
> > 
> > which does not match the defined prototype in the document.
> 
> 
> These are scalar instructions, not vector, so they should not be
> using 
> any flavor of "V".  They should be using BU_P10_MISC_n, where n is
> the 
> number of arguments.

Yes, looks like that is those are the scalar versions.  I got them
mixed up with the vector definitions

   vector unsigned long long int vec_pdep()
   vector unsigned long long int vec_pext ()
   vector unsigned long long int vec_cfuge ()

I was thinking the __builtin_name() was also referring to the vector
versions.

So, given that there are separate definitions, it does appear that the
names are all consistent with the documentation.  Thanks Bill.

                Carl