[llvm-dev] Vectorization of math function failed?

[Venkataramanan Kumar via llvm-dev]

Hi Florian,

On Tue, 1 Sep, 2020, 3:11 pm Florian Hahn, <florian_hahn at apple.com> wrote:

> Hi,
>
> On Sep 1, 2020, at 10:26, Venkataramanan Kumar via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> Hi Alexandre,
>
> On Tue, 1 Sep, 2020, 2:21 pm Alexandre Bique, <bique.alexandre at gmail.com>
> wrote:
>
>> On Tue, Sep 1, 2020 at 9:07 AM Venkataramanan Kumar
>> <venkataramanan.kumar.llvm at gmail.com> wrote:
>> >   Hi Alexandre,
>>
>> Hi Venkataramanan,
>>
>> > I am not sure if we can generate vector calls to GlibC libmvec.
>> Is the support for libmvec on the roadmap? If not how to add it?
>>
>
> I also wanted to check with others here,  if we can add support for vector
> routines in Glibc libmvec.
>
> Libmvec may not be available in machines which uses lower versions of
> glibc. We may have to take care of generating calls only when we detect
> libmvec and also meet required ISA requirements.
>
> Otherwise is it ok to generate vector calls under a flag?
>
>
> The existing vector library variants are enabled with a flag
> (`-vector-library`) on the LLVM side as mentioned earlier. I think it would
> make sense to add support for libmvec in a similar fashion. That should be
> relatively straight-forward.
>

Oh ok,  let me try and prepare a patch.

Regards
Venkat.


> Cheers,
> Florian
>
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