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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [MachineScheduler] -misched-cutoff option seems broken"
href="https://bugs.llvm.org/show_bug.cgi?id=45928">45928</a>
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<th>Summary</th>
<td>[MachineScheduler] -misched-cutoff option seems broken
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>10.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Common Code Generator Code
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
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</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=23487" name="attach_23487" title="testcase">attachment 23487</a> <a href="attachment.cgi?id=23487&action=edit" title="testcase">[details]</a></span>
testcase
I am getting a lot of strange errors with this option (@ e737847):
llc -O3 -mcpu=z13 -misched-cutoff=100 -o crash0.s crash0.ll
crashes after a few times on SystemZ.
with a cutoff=10, it crashes nearly every time.
The crashes are different at different times. It seems that the DAG has reached
its limit but still some scheduling is attempted later on after the DAG has
been rebuilt...
Is this option still used by anyone? I see it was added way back in 2012...</pre>
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