[llvm] [LLVM][NewPM] Add C API for running the pipeline on a single function. (PR #103773)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime` running on `omp-vega20-0` while building `llvm` at step 7 "Add check check-offload".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/30/builds/4301

Here is the relevant piece of the build log for the reference:
```
Step 7 (Add check check-offload) failure: test (failure)
...
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/bug50022.cpp (849 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/test_libc.cpp (850 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/bug53727.cpp (851 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/wtime.c (852 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu :: offloading/bug49021.cpp (853 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu :: offloading/std_complex_arithmetic.cpp (854 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/complex_reduction.cpp (855 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/bug49021.cpp (856 of 858)
PASS: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/std_complex_arithmetic.cpp (857 of 858)
TIMEOUT: libomptarget :: amdgcn-amd-amdhsa :: offloading/small_trip_count.c (858 of 858)
******************** TEST 'libomptarget :: amdgcn-amd-amdhsa :: offloading/small_trip_count.c' FAILED ********************
Exit Code: -9
Timeout: Reached timeout of 100 seconds

Command Output (stdout):
--
# RUN: at line 2
/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/clang -fopenmp    -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src  -nogpulib -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib  -fopenmp-targets=amdgcn-amd-amdhsa /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/offloading/small_trip_count.c -o /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/offloading/Output/small_trip_count.c.tmp /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib/libomptarget.devicertl.a
# executed command: /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/clang -fopenmp -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test -I /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -L /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -nogpulib -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib -fopenmp-targets=amdgcn-amd-amdhsa /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/offloading/small_trip_count.c -o /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/offloading/Output/small_trip_count.c.tmp /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./lib/libomptarget.devicertl.a
# note: command had no output on stdout or stderr
# RUN: at line 3
env LIBOMPTARGET_INFO=16    /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/offloading/Output/small_trip_count.c.tmp 2>&1 | /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/FileCheck /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/offloading/small_trip_count.c --check-prefix=DEFAULT
# executed command: env LIBOMPTARGET_INFO=16 /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/offloading/Output/small_trip_count.c.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: -9
# error: command reached timeout: True
# executed command: /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.build/./bin/FileCheck /home/ompworker/bbot/openmp-offload-amdgpu-runtime/llvm.src/offload/test/offloading/small_trip_count.c --check-prefix=DEFAULT
# note: command had no output on stdout or stderr
# error: command failed with exit status: -9
# error: command reached timeout: True

--

********************
Slowest Tests:
--------------------------------------------------------------------------
100.04s: libomptarget :: amdgcn-amd-amdhsa :: offloading/small_trip_count.c
16.58s: libomptarget :: amdgcn-amd-amdhsa :: offloading/bug49021.cpp
12.99s: libomptarget :: amdgcn-amd-amdhsa :: offloading/parallel_target_teams_reduction_max.cpp
12.33s: libomptarget :: amdgcn-amd-amdhsa :: offloading/parallel_target_teams_reduction_min.cpp
11.03s: libomptarget :: amdgcn-amd-amdhsa :: offloading/complex_reduction.cpp
10.47s: libomptarget :: amdgcn-amd-amdhsa :: jit/empty_kernel_lvl2.c
9.48s: libomptarget :: x86_64-pc-linux-gnu :: offloading/bug49021.cpp
8.56s: libomptarget :: amdgcn-amd-amdhsa :: offloading/ompx_saxpy_mixed.c
7.67s: libomptarget :: x86_64-pc-linux-gnu :: offloading/std_complex_arithmetic.cpp
7.01s: libomptarget :: x86_64-pc-linux-gnu-LTO :: offloading/bug49021.cpp
6.92s: libomptarget :: x86_64-pc-linux-gnu :: offloading/complex_reduction.cpp
6.88s: libomptarget :: amdgcn-amd-amdhsa :: offloading/barrier_fence.c
5.84s: libomptarget :: amdgcn-amd-amdhsa :: offloading/parallel_target_teams_reduction.cpp

```

https://github.com/llvm/llvm-project/pull/103773