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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Loop unswitch + MSSA Loop Dep] Assertion fails: "Incomplete MemoryPhi Node""
href="https://bugs.llvm.org/show_bug.cgi?id=40038">40038</a>
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<th>Summary</th>
<td>[Loop unswitch + MSSA Loop Dep] Assertion fails: "Incomplete MemoryPhi Node"
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Loop Optimizer
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21232" name="attach_21232" title="reduced testcase">attachment 21232</a> <a href="attachment.cgi?id=21232&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
opt -march=z13 -S -O3 -o out.opt.ll tc_IncompleteMemPhi.ll
-enable-simple-loop-unswitch -enable-mssa-loop-dependency
lib/Analysis/MemorySSA.cpp:1886: void
llvm::MemorySSA::verifyDefUses(llvm::Function&) const: Assertion
`Phi->getNumOperands() == static_cast<unsigned>(std::distance( pred_begin(&B),
pred_end(&B))) && "Incomplete MemoryPhi Node"' failed.</pre>
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