[clang] [llvm] [clang][OpenMP][SPIRV] Use the right calling convention for reduction helpers (PR #195911)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-ubuntu` running on `linaro-lldb-aarch64-ubuntu` while building `clang,llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/34188

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentSignalWatchBreak.py (700 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentSignalDelayBreak.py (701 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentSignalDelayWatch.py (702 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoBreakpointThreads.py (703 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoBreakpointsOneSignal.py (704 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoBreakpointsOneWatchpoint.py (705 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoWatchpointThreads.py (706 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoWatchpointsOneBreakpoint.py (707 of 2566)
PASS: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentTwoBreakpointsOneDelaySignal.py (708 of 2566)
PASS: lldb-api :: functionalities/single-thread-step/TestSingleThreadStepTimeout.py (709 of 2566)
FAIL: lldb-api :: functionalities/thread/concurrent_events/TestConcurrentManyBreakpoints.py (710 of 2566)
******************** TEST 'lldb-api :: functionalities/thread/concurrent_events/TestConcurrentManyBreakpoints.py' FAILED ********************
Script:
--
/usr/bin/python3.10 /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --triple aarch64-unknown-linux-gnu --build-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib --cmake-build-type Release /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/functionalities/thread/concurrent_events -p TestConcurrentManyBreakpoints.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 23.0.0git (https://github.com/llvm/llvm-project.git revision 39dc4b0f32dd898a41f9e51fa182f4021b983699)
  clang revision 39dc4b0f32dd898a41f9e51fa182f4021b983699
  llvm revision 39dc4b0f32dd898a41f9e51fa182f4021b983699
Skipping the following test categories: libc++, msvcstl, dsym, pdb, gmodules, debugserver, objc

--
Command Output (stderr):
--
FAIL: LLDB (/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang-aarch64) :: test (TestConcurrentManyBreakpoints.ConcurrentManyBreakpoints)
Log Files:
 - /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/functionalities/thread/concurrent_events/TestConcurrentManyBreakpoints/Failure_test.log
======================================================================
FAIL: test (TestConcurrentManyBreakpoints.ConcurrentManyBreakpoints)
   Test 100 breakpoints from 100 threads.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/decorators.py", line 160, in wrapper
    return func(*args, **kwargs)
  File "/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/functionalities/thread/concurrent_events/TestConcurrentManyBreakpoints.py", line 17, in test
    self.do_thread_actions(num_breakpoint_threads=100)
  File "/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/concurrent_base.py", line 261, in do_thread_actions
    self.assertEqual(
AssertionError: 1 != 0 : Expected main thread (finish) breakpoint to be hit once
Config=aarch64-/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/bin/clang
----------------------------------------------------------------------
Ran 1 test in 6.489s

FAILED (failures=1)


```

</details>

https://github.com/llvm/llvm-project/pull/195911