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<p>Hi, Jon,</p>
<p>I believe that the status is that it works, although there are
some outstanding issues around conditionally-reserved registers on
some targets, please see
<a class="moz-txt-link-freetext" href="http://lists.llvm.org/pipermail/llvm-dev/2018-May/122884.html">http://lists.llvm.org/pipermail/llvm-dev/2018-May/122884.html</a> for
some discussion of the outstanding issues. <br>
</p>
<p> -Hal<br>
</p>
<div class="moz-cite-prefix">On 05/30/2018 02:31 PM, Jon
Chesterfield via llvm-dev wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOUYtQDrAhKPg5gdycebmQgCMAvCaEmhLRc9vuw-fDV8fp9UcQ@mail.gmail.com">
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<div dir="ltr">There was a GSoC project in 2016, final report at <a
href="https://docs.google.com/document/d/1v-R7gB7Or4bPn0LW7d-yb1yla8jK3DVmTJNFVNYNu6k"
moz-do-not-send="true">https://docs.google.com/document/d/1v-R7gB7Or4bPn0LW7d-yb1yla8jK3DVmTJNFVNYNu6k</a>
<div><br>
</div>
<div>Google doesn't show a lot of activity since. Has anyone
taken this work further / put it near production? I'm
interested in removing register spills around functions that
are known to not clobber said registers.</div>
<div><br>
</div>
<div>Thanks!</div>
<div><br>
</div>
<div>Jon</div>
</div>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory</pre>
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