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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `!empty() && "empty range"' failed."
href="https://bugs.llvm.org/show_bug.cgi?id=46154">46154</a>
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<th>Summary</th>
<td>Assertion `!empty() && "empty range"' failed.
</td>
</tr>
<tr>
<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>
</tr>
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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>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Register Allocator
</td>
</tr>
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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>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, quentin.colombet@gmail.com
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=23558" name="attach_23558" title="reduced (very small) test case">attachment 23558</a> <a href="attachment.cgi?id=23558&action=edit" title="reduced (very small) test case">[details]</a></span>
reduced (very small) test case
llc -mtriple=s390x-linux-gnu -mcpu=z13 -O3 -pre-RA-sched=list-ilp
-systemz-subreg-liveness -stress-sched -terminal-rule tc_notempty_emptyrange.ll
-o -
llc: /home/ijonpan/llvm-project/llvm/lib/CodeGen/LiveInterval.cpp:447: bool
llvm::LiveRange::overlaps(const llvm::LiveRange&, const llvm::CoalescerPair&,
const llvm::SlotIndexes&) const: Assertion `!empty() && "empty range"' failed.
...
#11 0x000002aa15de122e (anonymous namespace)::RAGreedy::tryAssign</pre>
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