On Sun, 15 Jun 2014, Hendrik Siedelmann wrote:
On 14.06.2014 21:34, Marc Glisse wrote:
On Sat, 14 Jun 2014, Hendrik Siedelmann wrote:
I'm trying to use the vector extensions, but I'm unable to find common
functions like min/max or saturated arithmetic. Given that those are
pretty essential simd instructions I expected something like
_builtin_min(). Are there other ways to express those instructions?
Did you try (a<b)?a:b ?
You mean element-wise?
No.
That doesn't get vectorized for some reason.
Some versions are (one of the vectors involved has to be non-local).
I hope this limitation will be lifted some day.
Or do you mean with whole vectors? That complains with: error: used
vector type where scalar is required
That's only supported in C++, sorry.
Are there tricks like this for saturated arithmetics?
I am not familiar with that so I cannot answer.
--
Marc Glisse
