[PATCH] x86: _mm512_set1_p[sd]

[Richard Biener]

On Mon, Mar 24, 2014 at 12:13 PM, Ulrich Drepper <drepper@gmail.com> wrote:
> On Mon, Mar 24, 2014 at 1:50 AM, Kirill Yukhin <kirill.yukhin@gmail.com> wrote:
>> Your patch is correct IMHO, but maybe it worst to add all missing
>> `mm512_set1*' stuff?
>>
>> According to trunk and [1] we're still missing (beside mentioned by you)
>> _mm512_set1_epi16 and  _mm512_set1_epi8 broadcasts.
>
> Yes, more are missing, but I think those will need new builtins.  The
> _ps and _pd don't require additional instructions.
>
> _mm512_set1_epi16 might have to map to vpbroadcastw. _mm512_set1_epi8
> might have to map to vpbroadcastb.  I haven't seen a way to generate
> those instructions if needed and so this work was out of scope for now
> due to time constraints.  I agree, they should be added as quickly as
> possible to avoid releasing headers with incomplete APIs.
>
> What is the verdict on checking these changes in?  Too late for the
> next release?

This kind of changes can also be made for 4.9.1 for example.

Richard.