<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88940>88940</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [SPIRV][HLSL] Implement `lerp` lowering
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            HLSL,
            backend:SPIR-V
      </td>
    </tr>

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

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

<pre>
    need to emit fmix

ie  `%14 = OpExtInst %float %1 FMix %11 %12 %13`

for lerp calls.
</pre>
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