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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [X86] Remove Schedule classes from models that don't use them"
href="https://bugs.llvm.org/show_bug.cgi?id=35608">35608</a>
</td>
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<th>Summary</th>
<td>[X86] Remove Schedule classes from models that don't use them
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: X86
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>llvm-dev@redking.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Blocks</th>
<td>32325
</td>
</tr></table>
<p>
<div>
<pre>We currently have to specify all the InstrSchedModel classes even if the model
doesn't support it (e.g. WriteVarVecShift on pre-AVX2 machines).
We should be able to not have to include these as long as the model's
UnsupportedFeatures list agrees. Naturally if we try to attach the model to a
cpu that does support that feature we should error out (e.g. X86ScheduleHaswell
being used on KNL).</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [META][X86] Improve implementation and use of X86 scheduler models"
href="https://bugs.llvm.org/show_bug.cgi?id=32325">Bug 32325</a>] [META][X86] Improve implementation and use of X86 scheduler models
</li>
</ul>
</div>
<br>
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