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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ARM] MI scheduler should detect opportunities to cluster loads/stores for pairing/merging."
href="https://bugs.llvm.org/show_bug.cgi?id=32270">32270</a>
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<th>Summary</th>
<td>[ARM] MI scheduler should detect opportunities to cluster loads/stores for pairing/merging.
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<th>Product</th>
<td>libraries
</td>
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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>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: ARM
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>mcrosier@codeaurora.org
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
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<pre>This can be done by implementing the shouldClusterMemOps() API for ARM. This
function tells the MI scheduler if two given memory operations should be
scheduled adjacent. This increases the opportunity for load/store
pairing/merging.
Note that you have to add:
DAG->addMutation(createLoadClusterDAGMutation(DAG->TII, DAG->TRI));
and/or
DAG->addMutation(createStoreClusterDAGMutation(DAG->TII, DAG->TRI));
to TargetPassConfig::createMachineScheduler() to have an effect.</pre>
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