[webkit-dev] Some text about the B3 compiler

[Yusuke SUZUKI]

Awesome, awesome work!
Thanks Fil and all the JSC B3 developers!

After this https://bugs.webkit.org/show_bug.cgi?id=153422 is landed,
jsc-layout-tests.yaml/js/script-tests/array-enumerators-functions.js.layout-ftl-eager-no-cjit
 is only the test failing in B3 on Linux GTK port! B3 in the other
platforms looks approaching :D

Regards,
Yusuke Suzuki

On Fri, Jan 29, 2016 at 9:49 AM, Andy Estes <aestes at apple.com> wrote:

> I was just going to suggest something similar! 👍
>
> Andy
>
> On Jan 28, 2016, at 4:48 PM, Filip Pizlo <fpizlo at apple.com> wrote:
>
> I guess we could put it in Websites/webkit.org/b3.  Then patches could
> edit both B3 and the documentation in one go, and the documentation would
> go live when it’s committed.
>
> Does anyone object to this?
>
> -Filip
>
>
> On Jan 28, 2016, at 4:39 PM, Saam barati <sbarati at apple.com> wrote:
>
> Yeah. That’d be the easiest way to keep it up IMO.
>
> Saam
>
> On Jan 28, 2016, at 4:37 PM, Filip Pizło <fpizlo at apple.com> wrote:
>
> +1
>
> Do you think we should move the documentation to a file in svn so that it
> can be reviewed as part of patch review?
>
> -Filip
>
> On Jan 28, 2016, at 4:32 PM, Saam barati <sbarati at apple.com> wrote:
>
> This is great. Thanks Fil.
>
> I propose that we do all that we can to keep this updated.
> I suggest that all patches that change to the IR should also include with
> it
> a change to the documentation, and that reviewers should require this.
>
> It’d also be great if other significant changes that seem like the deserve
> a mention in the documentation also get added as part of patches.
>
> Saam
>
> On Jan 28, 2016, at 4:23 PM, Filip Pizlo <fpizlo at apple.com> wrote:
>
> Hi everyone,
>
> We’ve been working on a new compiler backend for the FTL JIT, which we
> call B3.  It stands for “Bare Bones Backend”.  We recently enabled it on
> X86/Mac, and we’re working hard to enable it on other platforms.
>
> If you’re interested in how it works, I’ve started writing documentation.
> I’ll be adding more to it soon!
> https://trac.webkit.org/wiki/BareBonesBackend
> https://trac.webkit.org/wiki/B3IntermediateRepresentation
>
> -Filip
>
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