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<div class="moz-cite-prefix">On 4/8/21 9:44 AM, Philip Reames via
llvm-commits wrote:<br>
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<div class="moz-cite-prefix">On 4/8/21 8:05 AM, Florian Hahn
wrote:<br>
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Hi Philip,<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Dec 28, 2020, at 18:15, Philip Reames via
llvm-commits <<a
href="mailto:llvm-commits@lists.llvm.org" class=""
moz-do-not-send="true">llvm-commits@lists.llvm.org</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class=""><br class="">
Author: Philip Reames<br class="">
Date: 2020-12-28T10:13:28-08:00<br class="">
New Revision: 4b33b2387787aef5020450cdcc8dde231eb0a5fc<br
class="">
<br class="">
URL: <a
href="https://github.com/llvm/llvm-project/commit/4b33b2387787aef5020450cdcc8dde231eb0a5fc"
class="" moz-do-not-send="true">https://github.com/llvm/llvm-project/commit/4b33b2387787aef5020450cdcc8dde231eb0a5fc</a><br
class="">
DIFF: <a
href="https://github.com/llvm/llvm-project/commit/4b33b2387787aef5020450cdcc8dde231eb0a5fc.diff"
class="" moz-do-not-send="true">https://github.com/llvm/llvm-project/commit/4b33b2387787aef5020450cdcc8dde231eb0a5fc.diff</a><br
class="">
<br class="">
LOG: Reapply "[LV] Vectorize (some) early and multiple
exit loops"" w/fix for builder<br class="">
<br class="">
This reverts commit
4ffcd4fe9ac2ee948948f732baa16663eb63f1c7 thus restoring
e4df6a40dad.<br class="">
<br class="">
The only change from the original patch is to add
"llvm::" before the call to empty(iterator_range). This
is a speculative fix for the ambiguity reported on some
builders.</div>
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<div class="">It looks like the following failure started with
the patch: <a href="https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33029" style="font-family: arial, sans-serif; white-space: pre;" class="" moz-do-not-send="true">https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33029</a></div>
<div class=""><br class="">
</div>
<div class="">It would be great if you could take a look.</div>
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<p>Happy to, but I'm going to need more information in this
thread. Looking at the chromium issue, I can download the test
case, but the detailed report information requires
authentication. Can you copy the stack trace and reproduction
instructions (e.g. what command line arguments, etc..) into this
email thread?</p>
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<p>Actually, ignore this. I realized I can reproduce on the test
case with a simple invocation of "opt -loop-vectorize".</p>
<blockquote type="cite"
cite="mid:ad329513-c5c0-6828-1226-d1239ac3fbc2@philipreames.com">
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cite="mid:DD193E3F-425E-4840-8FF7-0F9759947DB8@apple.com">
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<div class="">Cheers,</div>
<div class="">Florian</div>
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