<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/63221>63221</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [OpenMP] AMDGPU Memory access fault
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            openmp
      </td>
    </tr>

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

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

<pre>
    The reproducer can reliably fail on gfx906 but not gfx90a.
Using miniqmc https://github.com/ye-luo/miniqmc
```
mkdir build_r7_clangNightly_offload_MP; cd build_r7_clangNightly_offload_MP
cmake -DCMAKE_CXX_COMPILER=clang++ -DENABLE_OFFLOAD=ON -DQMC_MIXED_PRECISION=ON -DQMC_GPU_ARCHS=gfx906 ..
make -j32 test_distance_table
ctest -VV -R test_distance_table
```
failure error
```
AMDGPU fatal error 1: Memory access fault by GPU 1 (agent 0x563f70b34d40) at virtual address (nil). Reasons: Page not present or supervisor privilege, Write access to a read-only page
```
offending offload region https://github.com/ye-luo/miniqmc/blob/25aa5b4bd47032c6738441d4296f609e08f5f91a/src/Particle/SoaDistanceTableAAOMPTarget.h#L337

</pre>
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