<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/132491>132491</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [CIR] Upstream support for switch statements
        </td>
    </tr>

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

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

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

<pre>
    ### Overview
Upstream support for switch statements and the cir.switch and cir.case operations.

### Suggested minimal test case
```
int f(int a) {
  switch (a) {
    case 0: return 10;
    case 1: return 20;
    default: return 30;
  }
}
```

Note: The cir.break statement will be upstreamed as part of https://github.com/llvm/llvm-project/issues/132490. Please wait for that to avoid duplicate work. The upstreaming of switch statements without break statements can be handled independently.

### Existing incubator tests
clang/test/CIR/CodeGen/switch.cpp

</pre>
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