<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/55002>55002</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            header file copy failure
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          ye-luo
      </td>
    </tr>
</table>

<pre>
    failure started yesterday on my ubuntu box. I'm now testing e0ee0805745bd1782fc48cbb3898706971fe0919
```
[  0%] Copying clang's cldemoteintrin.h...
Error copying file (if different) from "/home/yeluo/opt/llvm-clang/llvm-project/clang/lib/Headers/cldemoteintrin.h" to "/home/yeluo/opt/llvm-clang/build_mirror_offload_patched/./lib/clang/15.0.0/include/cldemoteintrin.h".
make[2]: *** [tools/clang/lib/Headers/CMakeFiles/mips-resource-headers.dir/build.make:487: lib/clang/15.0.0/include/cldemoteintrin.h] Error 1
make[2]: *** Deleting file 'lib/clang/15.0.0/include/cldemoteintrin.h'
make[1]: *** [CMakeFiles/Makefile2:25706: tools/clang/lib/Headers/CMakeFiles/mips-resource-headers.dir/all] Error 2
```
On a different machine with SLES and non-SSD storage, I got more "Error coping ..."
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJytVNuOmzAU_Bp4sWIZEwI88JBuNupKrfqQD1jZ-ABujR3Zptv8fQ-Q3W3UVW-qsHw99swZe5BOXZpOaDN5ICEKH0GRC4QIXokLcZaMFzLJycaJSPeNkoeElyOx7olEjNK2J8AAWMWKcltIlZUV79pt1UqZV3VVsl1dZh2wOqsTdkjYPtmxa1mHxTtCWMKLpDiQO3e-zCe2RtgecQL2FIwugrbRa0sHSum6795750l73dBpAyThle6I0l0HHmxMeE0670ac5wk_Dm4EbC5gJoetO2PA0Ziv4-aKtg7O3n2Gdl57mdYS6_cgFPiwzN9SwuNJdH-MIidt1OOoZ_6PruuME-rxLGI7gMJl-oL4vCErKKOo0FHb1kwK3qZwlWUUXwAl5ahmku-R1H4tBCejcyb8IrG7j7j5iErOg1Gfw8ZDcJNvYTOsQVRp_5wCXaDy_bYqZ6S_54z3vV5i9hvqBzAQf7jl8h_0KW8wsrfkuUl_7s9wHMN4ga94Dv9vAgpjXtPnb_rikyXi9S2TUbSDtkCedBzI6cP9iQir0IV2czod0LfOix4zvyMPpHcY7vysFH9xySzf7B3OU9Xkqs5rkUYdDTQrs1Xb2U7k-jNIJ2-aIcZzwNSRM5YewSdJWzdeH_XPptEhTEv6RcEYT4cmA8ZlKapcFLkqayi7neoyLruyy_O2kKkREkxo8AKQnIUnshwxu6k4pLrhjHO25SyrsowXVGDF2G7H8FPbHU-2DEYkTGce1Pk-9c1CSU59wEWjQwyviyIE3VuABQ7PF1McnG8usEG_pgtyszD_Di3RmKc">