<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/83179>83179</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [NVPTX] Assertion "Bad value decomposition" hit while compiling tests
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:NVPTX
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          jhuber6
      </td>
    </tr>
</table>

<pre>
    The NVPTX backend currently crashes when trying to compile this test https://github.com/llvm/llvm-project/blob/main/libc/test/src/__support/uint_test.cpp. I have reduced it down to the following LLVM-IR, or in https://godbolt.org/z/TEbxMz5q1.
```llvm
target triple = "nvptx64-nvidia-cuda"

%"struct.BigInt" = type { %"struct.arr" }
%"struct.arr" = type { [2 x i128] }

define void @foo() {
entry:
  %call6 = call %"struct.BigInt" null(ptr null, i64 0)
 ret void
}
```

This currently crashes in the backend, while other targets seem to handle it fine without crashing.
</pre>
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