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<body><span class="vcard"><a class="email" href="mailto:efriedma@quicinc.com" title="Eli Friedman <efriedma@quicinc.com>"> <span class="fn">Eli Friedman</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - support runtime loop unroll with pointer type"
href="https://bugs.llvm.org/show_bug.cgi?id=51178">bug 51178</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">CC</td>
<td>
</td>
<td>efriedma@quicinc.com
</td>
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<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - support runtime loop unroll with pointer type"
href="https://bugs.llvm.org/show_bug.cgi?id=51178#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - support runtime loop unroll with pointer type"
href="https://bugs.llvm.org/show_bug.cgi?id=51178">bug 51178</a>
from <span class="vcard"><a class="email" href="mailto:efriedma@quicinc.com" title="Eli Friedman <efriedma@quicinc.com>"> <span class="fn">Eli Friedman</span></a>
</span></b>
<pre>That loop doesn't qualify for what the unroll pass refers to as "runtime"
unrolling; that requires an exit with a computable backedge-taken count.
You can force unrolling with "-unroll-count=2". Target unroll heuristics can
do something similar by setting "UP.Force". Currently, on almost all targets,
the heuristics choose not to do this.
If you think some particular target's heuristics should be adjusted, please
file a more specific bug.</pre>
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