<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/66795>66795</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [SLP] Assertion failure after D159205
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            llvm:SLPVectorizer
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
            alexey-bataev
      </td>
    </tr>

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

<pre>
    Flang triggers an assertion after https://reviews.llvm.org/D159205 (5bab59d) on `CPU2006/416.gamess`.

Reduced test case: [reduced.ll.gz](https://github.com/llvm/llvm-project/files/12665101/reduced.ll.gz)

Compilation command: `opt -O2 -vectorize-slp reduced.ll -S`
```
opt: .../llvm/lib/IR/Value.cpp:507: void llvm::Value::doRAUW(llvm::Value *, llvm::Value::ReplaceMetadataUses): Assertion `!conta
ins(New, this) && "this->replaceAllUsesWith(expr(this)) is NOT valid!"' failed.
```

The test passes when I revert the commit.
</pre>
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