[PATCH] Allow casts of mixed-size same-arity vectors
hfinkel at anl.gov
Thu Sep 12 14:51:05 PDT 2013
----- Original Message -----
> On Sep 12, 2013, at 2:46 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> > ----- Original Message -----
> >> On Sep 12, 2013, at 2:14 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> >>> I've been thinking about constructing a patch to implement
> >>> __builtin_vectorconvert(type, value), do you think that is a
> >>> reasonable approach?
> >> It would be nice if what you come up with is capable of being
> >> extended to include rounding and saturation, like the OpenCL
> >> convert_* ops. Obviously that blows up the space enormously, so I
> >> wouldn’t expect anyone to do them all at once.
> > Do you have a recommended design? I could do something like this:
> > __builtin_vectorconvert(type, value, rnd = 0, sat = 0)
> > where the last two parameters are integers with default values
> > specifying the rounding mode and a saturation parameter.
> I am very much the wrong person to ask, but that seems reasonable to
Okay ;) -- Well, I'll leave off these parameters for the initial implementation; we can always add them on later.
> – Steve
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory
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