[Mlir-commits] [mlir] [mlir][reducer] make opt-reduction pass clone topOp after check (NFC) (PR #189356)

[LLVM Continuous Integration]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-flang-rhel-clang` running on `ppc64le-flang-rhel-test` while building `mlir` at step 6 "test-build-unified-tree-check-flang".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/157/builds/45695

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-flang) failure: 1200 seconds without output running [b'ninja', b'check-flang'], attempting to kill
...
PASS: Flang :: Driver/use-module-error.f90 (4328 of 4338)
PASS: Flang :: Driver/slp-vectorize.f90 (4329 of 4338)
PASS: Flang :: Lower/OpenMP/requires-usm.f90 (4330 of 4338)
PASS: Flang :: Driver/mcmodel.f90 (4331 of 4338)
PASS: Flang :: Driver/linker-options.f90 (4332 of 4338)
PASS: Flang :: Driver/omp-driver-offload.f90 (4333 of 4338)
PASS: Flang :: Lower/OpenMP/rtl-flags.f90 (4334 of 4338)
PASS: Flang :: Driver/target-cpu-features.f90 (4335 of 4338)
PASS: Flang :: Driver/options-loongarch.f90 (4336 of 4338)
PASS: Flang :: Driver/fopenmp.f90 (4337 of 4338)
command timed out: 1200 seconds without output running [b'ninja', b'check-flang'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=3083.344807

```

</details>

https://github.com/llvm/llvm-project/pull/189356