<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/75147>75147</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            The cuda object file compiled by clang cannot be recognized by nvprune.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          zq1997
      </td>
    </tr>
</table>

<pre>
    As the title says, when compiling CUDA source file with Clang, its object file cannot be recognized by nvprune, and the error is: `nvprune fatal   : Unexpected fatbin data`.

```cu
// foo.cu
#include <cstdio>

__global__ void foo() {
    printf("CUDA kernel runs successfully.\n");
}

int main() {
    foo<<<1, 1>>>();
 cudaDeviceSynchronize();
    return 0;
}
```

with nvcc (everything is normal)
```sh
nvcc -gencode=arch=compute_70,code=sm_70 -gencode=arch=compute_80,code=sm_80 -c foo.cu
cuobjdump foo.o
nvprune -arch sm_80 foo.o -o foo.stripped.o
cuobjdump foo.stripped.o
```

with Clang(everything is normal)
```sh
clang --cuda-gpu-arch=sm_70 --cuda-gpu-arch=sm_80 -c foo.cu
cuobjdump foo.o  # also OK
nvprune -arch sm_80 foo.o -o foo.stripped.o  # nvprune fatal   : Unexpected fatbin data
```

Operating system: Linux (tried both Centos and Ubuntu)
Software version: CUDA version or Clang version doesn't matter, this is almost always reproducible.
</pre>
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