[llvm-dev] [RFC] Supporting ARM's SVE in LLVM

[Chandler Carruth via llvm-dev]

On Mon, Nov 28, 2016 at 7:37 AM Paul Walker via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> That is my intention with the stepvector patch (
> https://reviews.llvm.org/D27105).  You can see that the interface is
> common but for non-scalable vectors the result is its equivalent
> ConstantVector.  Once an agreed form is available
> LoopVectorize::getStepVector can be converted to become compatible with
> scalable vectors very easily, albeit being only a small step on a long road.
>

Ok, I'm still catching up on this thread, but I think starting to review
patches is going to make it substantially harder to have a productive
conversation. We haven't yet really gotten to any kind of consensus around
the design, and until then I think it would be very helpful to keep
discussion focused on the high-level threads on llvm-dev rather than
fragmenting it into the commits list threads for the patches. I'm happy to
have patches as FYI examples, but they shouldn't be the focus of the
discussion.

Also, up the thread and even in this email there is significant talk about
a substantial change of design based on feedback from the dev meeting. But
there are over 40 emails already here and I've not found an actual concise
high level overview of the *new* design.

I suspect it would be helpful to start a fresh RFC thread with a *concise*
description of the new design so that folks can skip ahead and more
productively join that discussion.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20161129/b4cac842/attachment.html>