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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `&*ALI == *AAI && "Not the same accesses in the same order"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=48072">48072</a>
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<th>Summary</th>
<td>Assertion `&*ALI == *AAI && "Not the same accesses in the same order"' failed.
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<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>
<tr>
<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Scalar Optimizations
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>mikael.holmen@ericsson.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24134" name="attach_24134" title="bbi-49235.ll reproducer">attachment 24134</a> <a href="attachment.cgi?id=24134&action=edit" title="bbi-49235.ll reproducer">[details]</a></span>
bbi-49235.ll reproducer
With
opt -S -o - bbi-49235.ll -memoryssa -gvn -dse -verify-memoryssa
I hit
opt: ../lib/Analysis/MemorySSA.cpp:2063: void
llvm::MemorySSA::verifyOrderingDominationAndDefUses(llvm::Function &) const:
Assertion `&*ALI == *AAI && "Not the same accesses in the same order"' failed.
This starts happening with 51ff04567b2f:
Recommit "[DSE] Switch to MemorySSA-backed DSE by default."
After investigation by @asbirlea, the issue that caused the
revert appears to be an issue in the original source, rather
than a problem with the compiler.
This patch enables MemorySSA DSE again.
This reverts commit 915310bf14cbac58a81fd60e0fa9dc8d341108e2.</pre>
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