<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/72342>72342</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [mlir][pass] how can i know the pass effect ? like find the different dialect between after pass and before
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            mlir
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          LiuYang328
      </td>
    </tr>
</table>

<pre>
    for example 

-convert-arith-to-llvm  :  convert arith dialect to llvm dialect 

but how can i know -convert-linalg-to-loops ? 
how can i find in the source code in mlir lib?
</pre>
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