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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks Itaru,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">The 20.0 release of our commercial compiler will be based on the LLVM 9 release, so should help slightly there. I’m afraid that producing a public source code release is not on our roadmap, as I
believe this would distract our engineering team away from the main upstreaming work.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I do appreciate your enthusiasm here! It should not be too long until we have enough functional infrastructure in place upstream for people outside of Arm to collaborate effectively on it. For
now, we’re extremely grateful for code reviews.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Will.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:#4472C4">Will Lovett<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="color:#4472C4">Technical Product owner<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif;color:#4472C4">Compilers & Libraries</span><span style="color:black"><br>
</span><span style="font-family:"Calibri Light",sans-serif;color:#4472C4">Arm Allinea Studio
</span><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt">On 12/09/2019, 10:04, "Itaru Kitayama" <<a href="mailto:itaru.kitayama@gmail.com">itaru.kitayama@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Will, <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">At RIKEN, we have a licence for the Arm Compiler which produces clean SVE code well, even though that's based upon<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">7.1.0, but that's a reliable toolchain that enables us for gearing up for the FUGAKU supercomputer. However, given Clang trunk is already<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">in 10 series, lots of good features/enhancements are expected there thus, we're just wondering whether we are honored to<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">use the current implementation provided by Arm so we can work together.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Good luck to you Arm folks with the on-going work (with the RISC-V community)! We hope the "Great" merge will happen<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">sooner than predicted. <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Thanks,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Itaru. <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">On Thu, Sep 12, 2019 at 5:44 PM Will Lovett <<a href="mailto:Will.Lovett@arm.com">Will.Lovett@arm.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
Hi Itaru,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
(and thanks for the replies on this Renato).<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
We (Arm HPC) initially put up that github branch as an aid to the discussions on upstream SVE support. The branch was very old (LLVM-5 based!), and various aspects of our implementation have changed significantly, following discussions with the community.
For this reason, we felt that branch was unhelpful at this point, so have removed it.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
The team are working hard on getting SVE codegen support into LLVM, but it’s not there yet. For now, this leaves the following options for testing vectorization with SVE:<o:p></o:p></p>
<p class="gmail-m8395624629536821644msolistparagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Get an up to date GNU compiler, which has SVE vectorization support<o:p></o:p></p>
<p class="gmail-m8395624629536821644msolistparagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Use Arm Compiler for Linux (the new name for Arm Compiler for HPC)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
If you’re interested in the latter option, feel free to give me a mail (will.lovett at arm dot com). Depending on your use-case, there may be scope for arranging a license.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
Thanks,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
Will.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<b><span style="color:#4472C4">Will Lovett</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="color:#4472C4">Technical Product owner</span><o:p></o:p></p>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-family:"Calibri Light",sans-serif;color:#4472C4">Compilers & Libraries</span><span style="color:black"><br>
</span><span style="font-family:"Calibri Light",sans-serif;color:#4472C4">Arm Allinea Studio
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
On 11/09/2019, 22:31, "llvm-dev on behalf of Itaru Kitayama via llvm-dev" <<a href="mailto:llvm-dev-bounces@lists.llvm.org" target="_blank">llvm-dev-bounces@lists.llvm.org</a> on behalf of
<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
Renato et al.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
In the meantime, is there an out of tree branch I mean, other than LLVM trunk so I can test how much I can SVE vectorize my code with it?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
Arm seemed to gave taken down the GitHub branch for sometime.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:72.0pt">
On Wed, Sep 11, 2019 at 20:41 Renato Golin <<a href="mailto:rengolin@gmail.com" target="_blank">rengolin@gmail.com</a>> wrote:<o:p></o:p></p>
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On Wed, 11 Sep 2019 at 06:13, Itaru Kitayama via llvm-dev<br>
<<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<br>
> Hi,<br>
> I'm still seeing the same ie trying to produce SVE instructions but<br>
> resulted in NEONs with Clang as of Sep. 10th.<br>
> <a href="http://lists.llvm.org/pipermail/llvm-dev/2019-March/130788.html" target="_blank">
http://lists.llvm.org/pipermail/llvm-dev/2019-March/130788.html</a><br>
<br>
Hi Itaru-san,<br>
<br>
IR SVE implementation is ongoing, CC'ing Graham who is leading that effort.<br>
<br>
I'm hoping we can have something working before the next release is<br>
branched (Dec/Jan), but I don't expect it to be fully featured (inline<br>
asm, full ACLE, auto-vec in all NEON cases, etc).<br>
<br>
cheers,<br>
--renato<o:p></o:p></p>
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