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<div class="moz-cite-prefix">On 4/9/21 2:44 PM, Florian Hahn wrote:<br>
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Hi,<br class="">
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<div class="">On 8 Apr 2021, at 19:17, Philip Reames <<a
href="mailto:listmail@philipreames.com" class=""
moz-do-not-send="true">listmail@philipreames.com</a>>
wrote:</div>
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<p class="">This isn't a regression in this change, we're
exposing an existing issue at higher frequency. I
reduced a test which doesn't involve this change, and
filed a bug for it. <a class="moz-txt-link-freetext"
href="https://bugs.llvm.org/show_bug.cgi?id=49900"
moz-do-not-send="true">https://bugs.llvm.org/show_bug.cgi?id=49900</a></p>
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Oh that’s interesting, thanks for taking a look. I think there
might be an existing bug for a similar/identical issue. Let me
try to find it and link it in Guggilla.<br class="">
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<p class="">Florian, I'm willing to take a shot at fixing
this, but need a bit of help. Would you have a couple
minutes to debate ideas on how the vectorizer should be
structured to avoid querying SCEV over partially
constructed IR?</p>
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Unfortunately I won’t have time in the next few days, but I’ll try
to take a look early next week. Perhaps it would be worth syncing
up mid next week?</blockquote>
<p>Sure. I don't see this as urgent, so simply suggest a time late
next week which works for you.</p>
<p>One near term question. I have a slightly ugly workaround
(described on the bug), for this particular manifestation of the
broader issue. Do you think it's worth working around? (e.g. Did
the frequency change by enough to be concerning?)<br>
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<div class="">Cheers,</div>
<div class="">Florian</div>
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