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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Redundant spills with MI Scheduler"
href="http://llvm.org/bugs/show_bug.cgi?id=21430">21430</a>
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<th>Summary</th>
<td>Redundant spills with MI Scheduler
</td>
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<th>Product</th>
<td>libraries
</td>
</tr>
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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>Windows NT
</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>Backend: X86
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>avolkov.intel@gmail.com
</td>
</tr>
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<th>CC</th>
<td>atrick@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13264" name="attach_13264" title="test.ll">attachment 13264</a> <a href="attachment.cgi?id=13264&action=edit" title="test.ll">[details]</a></span>
test.ll
On attached test case I see that there are several spills that can be
eliminated with better scheduling.
Use llc to compile it:
llc -mcpu=hsw vs2.ll
When compiling with llc before MI Scheduler was enabled (before r192750) I see
no spills. Using r192750 and also with latest trunk I see spills.</pre>
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