<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/102965>102965</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Non-terminating dsymutil invocation w/LTO
        </td>
    </tr>

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

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

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

<pre>
    Trying to following the bug reporting guidelines for LTO problems yields `ld: unknown options: -plugin-opt=save-temps` so if you want something else from me, please ask.

In [this project](https://github.com/stlab/adobe-contract-checks) at a9d06b8, on MacOS, using g++-14.1.0 as a front end, this command-line

`cmake -Wno-dev -S . -B ./.gcc-build -GNinja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_STANDARD=17 -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DCMAKE_CXX_COMPILER=g++-14 -Dadobe_contract_checking_ENABLE_CLANG_TIDY=OFF && cmake --build .gcc-build`

Eventually hangs in an invocation of `dsymutil` that never completes.  Reporting here because `dsymutil` is an LLVM tool.

If you look at the output of that command, it prints

> warning: could not find referenced DIE
note: while processing /Users/dave/src/adobe-contract-checks/.gcc-build/lib/libgtest_main.a(gtest_main.cc.o)

forever.

This problem is suppressed by disabling LTO (add `-Dadobe_contract_checking_ENABLE_IPO=OFF` to the cmake command line).


</pre>
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