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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - r311077 - using VPlan in loop vectorizer - generates bad IR for PPC (and probably others)"
href="https://bugs.llvm.org/show_bug.cgi?id=34248">34248</a>
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<th>Summary</th>
<td>r311077 - using VPlan in loop vectorizer - generates bad IR for PPC (and probably others)
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<th>Product</th>
<td>new-bugs
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>chandlerc@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19013" name="attach_19013" title="reproducer">attachment 19013</a> <a href="attachment.cgi?id=19013&action=edit" title="reproducer">[details]</a></span>
reproducer
When testing LLVM with the VPlan based vectorization enabled we found lots of
issues on non-x86 architectures.
I've attached a reduced IR test case from libpng on PPC64. It assert fails
with:
% opt -disable-output -aa-pipeline=default -passes='default<O3>'
png.simplified.ll
I'm going to revert the patch while you investigate.</pre>
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