<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/64943>64943</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            LLVM build errors in Ubuntu 14.04 
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          lipeng28
      </td>
    </tr>
</table>

<pre>
    Hi There

I applied the following command to build llvm-project:
cmake -DLLVM_ENABLE_PROJECTS=clang -DCMAKE_BUILD_TYPE=Debug -G "Unix Makefiles" ../llvm && make 
and I encountered the following errors, do you have any idea on why this happened?

/home/xx/Clang/llvm-project-16.0.0.src/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S:2242: Error: operand type mismatch for `vpxord'
/home/xx/Clang/llvm-project-16.0.0.src/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S:2243: Error: operand type mismatch for `vprord'
...

The environment I relied on is:
Ubuntu 14.04 X86_64
GCC version 9.4 
cmake version 3.27.3

Thanks
Peng
</pre>
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