<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/91937>91937</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
[GlobalISel] CSEMIRBuilder Performance
</td>
</tr>
<tr>
<th>Labels</th>
<td>
llvm:globalisel
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
Pierre-vh
</td>
</tr>
</table>
<pre>
Opening this issue to track performance improvement ideas for CSEMIRBuilder in GlobalISel.
I did some profiling and I found that CSEMIRBuilder takes a non-negligible amount of time, about 2%.
0.8% of that is MachineIRBuilder::buildInstr, so that means CSEMIRBuilder adds a 150% overhead to a normal MIR builder.

</pre>
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