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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [RegAlloc: subreg liveness] Bad machine code: Live segment doesn't end at a valid instruction"
href="https://bugs.llvm.org/show_bug.cgi?id=48762">48762</a>
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<th>Summary</th>
<td>[RegAlloc: subreg liveness] Bad machine code: Live segment doesn't end at a valid instruction
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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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>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
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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
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<pre>Created <span class=""><a href="attachment.cgi?id=24383" name="attach_24383" title="reduced testcase">attachment 24383</a> <a href="attachment.cgi?id=24383&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
bin/llc -mcpu=arch13 -O3 -disable-lsr -systemz-subreg-liveness -verify-misched
tc_crash3_aftercreduce.ll
*** Bad machine code: Live segment doesn't end at a valid instruction ***
- function: q
- basic block: %bb.2 bb2 (0x6f657d0) [160B;256B)
- liverange: [192r,208d:3)[1472r,1584B:1)[2800r,2912B:0)[2912B,3040r:2)
0@2800r 1@1472r 2@2912B-phi 3@192r 4@x 5@x 6@x
- v. register: %102
- lanemask: 0000000000000001
- segment: [192r,208d:3)
LLVM ERROR: Found 1 machine code errors.</pre>
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