<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/72792>72792</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Flang][OpenMP][Application=MUMPS] Compilation failed with "operation with block successors must terminate its parent block"
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            flang
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          k-arrows
      </td>
    </tr>
</table>

<pre>
    When building MUMPS(https://mumps-solver.org/index.php), Flang-new resulted in compilation error such as:

```console
error: loc("/tmp/MUMPS_5.6.2/src/dsol_omp_m.F":163:7): operation with block successors must terminate its parent block
error: loc("/tmp/MUMPS_5.6.2/src/dsol_omp_m.F":414:7): operation with block successors must terminate its parent block
error: verification of lowering to FIR failed
```

Steps to reproduce:
```console
$ wget http://graal.ens-lyon.fr/MUMPS/MUMPS_5.6.2.tar.gz
$ tar zxf MUMPS_5.6.2.tar.gz
$ cd MUMPS_5.6.2/src
$ flang-new -c dmumps_struc_def.F -I ../include/
$ flang-new -c -fopenmp dsol_omp_m.F
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJy0lM1upDoQhZ_GbCwsKKB_Fiw6aSFlEd3oRld32TJ2AZ4Y27JNOsnTj4D89Uw0m5mRECC7XDo65yvzEFRvEGtSXZHqmPApDtbXDyn33p5D0lr5XP8_oKHtpLRUpqe3_93e3RPYDTG6QIoDgYZAM06jC2mw-hE9s74n0Cgj8Ym5wRHYE7imjeamTw2eqccw6YiSKkOFHZ3SPCprKHpvPQ2TGChfWmdHkr29N9n6CGuC1biuLidIcaDaCgI7AkCgiaMj0Cw6TxXbsHkteEGgkcHqkx3daWTNXFsc8k1BisN2llgcqHXoVylnFQfaaiseZj0CQ7A-0HEKkUb0ozI8IlUxUMc9mriW_iFNZV7-NU2P6FWnxNrQdlTbM_o51mhpc_Mv7bjSKH-w_HMO9xFdmKs9Om_lJPAjqC8jIlDSc4-RzsC889J7zjVDE1L9bA3r_Js7ly6xyD3rXz46Re7py1NHf1UjJP3Z6Pfd7h3DVFC5cHsK0U_iJLFjDU1vKGMLvkJPEme5X59NO-vQjI5eJHjpRCLrQu6LPU-wzrdZVuyrXblLhjrngnPMJG83VVW2eVnmuxZBbLfbsqyyLlE1ZFDkeb7PIc_KHWtzLtt9yYELyMosJ2WGI1eaaf04ziOXqBAmrLew3UOieYs6LGMNsMie2aqOia_n-rSd-kDKTKsQw0eHqKJe7oJlVkl1JNXVPw7N7d36f3BOv8JDiuOaV3Wk159meAVoZZUA_C69AMnkdX152fQqDlPLhB0JNLP410_qvP2GIs7pzV4EAs1ix_cAAAD__wSuil8">