<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/93681>93681</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [bolt][Docs] execute ninja clang failed in stage3
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          Itis-hard2name
      </td>
    </tr>
</table>

<pre>
    in the "Optimizing Clang with BOLT" section of bolt/docs/OptimizingClang.md
when executing `perf record -e cycles:u -j any,u -- ninja clang`,
it fails and the following message is displayed:
`ninja: error: unknown target 'clang', did you mean 'clean'?`
The reason for the failure is that `-DLLVM_ENABLE_PROJECTS="clang"` is not added

```bash
# The original command
$ cmake -G Ninja ${TOPLEV}/llvm -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=Release \
 -DCMAKE_C_COMPILER=$CPATH/clang -DCMAKE_CXX_COMPILER=$CPATH/clang++ \
 -DLLVM_USE_LINKER=lld -DCMAKE_INSTALL_PREFIX=${TOPLEV}/stage3/install
```

</pre>
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