<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/133206>133206</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [X86] Backport new intrinsic and instruction changes in AVX10.2
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    This is a single request to backporting #131592, #132362, #132397, #132405, #132414, and #132426.

#131592 is saturation intrinsic naming change that aligned with GCC;
#132362 is a revert of prior merged new YMM rounding variants of existing instructions;
#132397, #132405, #132414, and #132426 remove the YMM rounding variants from new introduced AVX10.2 instruction. Together with #132362, they are to reflect the latest change of AVX10 white paper: https://cdrdv2.intel.com/v1/dl/getContent/784343

Although the changes look big, they are just straightforward removal or renaming, the risk is low. I think back porting to LLVM20 can reduce the scope of people who may use the unsupported instructions and future compatibility issues when switching LLVM20 to future version.
</pre>
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