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<body><span class="vcard"><a class="email" href="mailto:eric@anholt.net" title="Eric Anholt <eric@anholt.net>"> <span class="fn">Eric Anholt</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Register spilling is slow"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70613">bug 70613</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Assignee</td>
<td>idr@freedesktop.org
</td>
<td>kevin.rogovin@intel.com
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<td style="text-align:right;">Summary</td>
<td>Repeated function call gives HUGE increases to compile time
</td>
<td>Register spilling is slow
</td>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Register spilling is slow"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70613#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Register spilling is slow"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70613">bug 70613</a>
from <span class="vcard"><a class="email" href="mailto:eric@anholt.net" title="Eric Anholt <eric@anholt.net>"> <span class="fn">Eric Anholt</span></a>
</span></b>
<pre>Register spilling is exceptionally slow. If register spilling happens in any
real-world app, our highest priority is to prevent spilling, to ensure runtime
performance. So, we haven't ever optimized the compile performance of actually
generating spills.
You'd want to update interference graph such that you can rerun the allocator
without going through generation of live intervals and the interference graph
again.</pre>
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