<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/64199>64199</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Backport ThinLTO cache key fix
        </td>
    </tr>

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

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

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

<pre>
    /cherry-pick 279c2971951c2ea58a2bd1e6687ce61451f9d329

Needed to avoid compile-time regressions in Rust.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJxEkEGO3CoQQE-DN6gtUy6wWbCY0cirrx8pmgtgKNuksbEAT9K3j7oTKZuqRamenp4tJawHkWHyncmPxl51S9kc4R5cMyf_MAwmt1HOj9sZ3J3DoB3oQWgpHJCVo4XZC1JqHBwpgVIs2vegWffBurc_838iT57XxO1XCp67tJ8h0q2GnXimNVMpIR2Fh4N_v0ptG296r3ttGzJC6U5KCSM2mxGzRIvocBALjjNKvWiFs9MzKi3RNcFAB303wCgQBWBraZGdUl53wpNVyLCj3YbYxvi1tymvTSjlIqNQaN1EO1MsrxgAB_3kryMDeLbJ5vlzm6-1MOxiKLX8o9RQI5l36-5nypV_buH47_Mbd9ZtxO_04Ev41Vw5mq3Ws7D-jcHEYFpD3a65dWlnMD1hf9ftzOkHucpgeikUBtNL8XcAAAD__8iwh6Q">