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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CodeGenPrepare] Assertion `Lhs != 1 && "Can't halve byte alignment"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=44851">44851</a>
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<th>Summary</th>
<td>[CodeGenPrepare] Assertion `Lhs != 1 && "Can't halve byte alignment"' failed.
</td>
</tr>
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<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>normal
</td>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Common Code Generator Code
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
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<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=23110" name="attach_23110" title="reduced testcase">attachment 23110</a> <a href="attachment.cgi?id=23110&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
llc -mtriple=s390x-linux-gnu -mcpu=z14 -o - ./tc_canthalvebytealign.ll
-force-split-store
or
llc -march=x86 -o - ./tc_canthalvebytealign.ll -force-split-store
llvm/include/llvm/Support/Alignment.h:384: llvm::Align
llvm::operator/(llvm::Align, uint64_t): Assertion `Lhs != 1 && "Can't halve
byte alignment"' failed.
...</pre>
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