[llvm] [VPlan] Run initial recipe simplification on VPlan0. (PR #176828)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-x86_64-debian` running on `lldb-x86_64-debian` while building `llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/162/builds/40963

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: tools/lldb-dap/launch/TestDAP_launch_no_lldbinit_flag.py (485 of 3391)
PASS: lldb-api :: lang/cpp/enum_types/TestCPP11EnumTypes.py (486 of 3391)
PASS: lldb-api :: tools/lldb-dap/exception/TestDAP_exception.py (487 of 3391)
PASS: lldb-api :: functionalities/breakpoint/breakpoint_on_lambda_capture/TestBreakOnLambdaCapture.py (488 of 3391)
PASS: lldb-api :: tools/lldb-dap/launch/TestDAP_launch_basic.py (489 of 3391)
PASS: lldb-api :: commands/log/basic/TestLogging.py (490 of 3391)
PASS: lldb-api :: commands/expression/inline-namespace/TestInlineNamespace.py (491 of 3391)
PASS: lldb-api :: lang/c/set_values/TestSetValues.py (492 of 3391)
PASS: lldb-api :: tools/lldb-dap/launch/TestDAP_launch_disableSTDIO.py (493 of 3391)
UNRESOLVED: lldb-api :: python_api/run_locker/TestRunLocker.py (494 of 3391)
******************** TEST 'lldb-api :: python_api/run_locker/TestRunLocker.py' FAILED ********************
Script:
--
/usr/bin/python3 /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./lib --env LLVM_INCLUDE_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/include --env LLVM_TOOLS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./bin --arch x86_64 --build-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex --lldb-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/lldb --compiler /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/clang --dsymutil /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./bin --lldb-obj-root /home/worker/2.0.1/lldb-x86_64-debian/build/tools/lldb --lldb-libs-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./lib --cmake-build-type Release -t /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/python_api/run_locker -p TestRunLocker.py
--
Exit Code: -6

Command Output (stdout):
--
lldb version 23.0.0git (https://github.com/llvm/llvm-project.git revision a55fbab0cffc9b4af497b9e4f187b61143743e06)
  clang revision a55fbab0cffc9b4af497b9e4f187b61143743e06
  llvm revision a55fbab0cffc9b4af497b9e4f187b61143743e06

--
Command Output (stderr):
--
Change dir to: /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/python_api/run_locker
runCmd: settings clear --all

output: 

runCmd: settings set symbols.enable-external-lookup false

output: 

runCmd: settings set target.inherit-tcc true

output: 

runCmd: settings set target.disable-aslr false

output: 

runCmd: settings set target.detach-on-error false

output: 

runCmd: settings set target.auto-apply-fixits false


```

</details>

https://github.com/llvm/llvm-project/pull/176828