<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/101571>101571</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [HLSL] Report error when a shader entry point is not found or it is marked `static`
        </td>
    </tr>

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

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

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

<pre>
    Clang should report an error if a shader entry point function is not found in the input or of it is marked `static`.

**Case 1:**
Entry point function is not included in the input: https://godbolt.org/z/Yocb78xTe
```
void foo();
```
 - DXC reports `error: missing entry point definition`
 - Clang crashes

**Case 2:**
Entry point in shader is marked static: https://godbolt.org/z/e9Wxb74Mq
```
[numthreads(4,1,1)]
static void csmain() {}
```
 - DXC reports `error: cannot find entry function csmain`
 - Clang produces conflicting error and a warning about `numthreads` attribute

**Case 3:**
Entry point in shader library is marked static: https://godbolt.org/z/sc1jnjvPT
```
[shader("compute")]
[numthreads(4,1,1)]
static void csmain() {}
```
- DXC produces empty library, no error
- Clang produces warnings about `numthreads` and `shader` attributes

</pre>
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