<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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