Added x86_64-fedora-clang builder and fedora-llvm-x86_64 slave

[kwk]

Summary

I'm evaluating how to run a buildbot slave/worker in a Red Hat internal OpenShift cluster.

[kuhnel]

looks good to me

[gkistanova]

Hello Konrad,
Thanks for the patch.

Could you make a small change before committing, please?

buildbot/osuosl/master/config/builders.py

1123

You do not need this. The right list will be configured based on the depends_on_projects value.

1127

Do you think specifying -DCMAKE_C_COMPILER and -DCMAKE_CXX_COMPILER wouldn't work here?

[kwk]

Incorporated Galina's feedback

[kwk]

Done. Thank you!

buildbot/osuosl/master/config/builders.py

return [
                             '-DLLVM_ENABLE_PROJECTS=mlir',
                             '-DLLVM_LIT_ARGS="-vj 256"',
                         ],
                         env={
                               'CC': 'clang',
                               'CXX': 'clang++',
                               'LD': 'lld',
                         })},
+       # Latest stable fedora running on Red Hat internal OpenShift cluster (PSI)  
+       {'name': 'x86_64-fedora-clang',
+        'mergeRequests': False,
+        'slavenames': ['fedora-llvm-x86_64'],
+        'builddir': 'x86_64-fedora-clang',
+        'factory': UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
+                        clean=True,
+                        depends_on_projects=['llvm', 'clang', 'clang-tools-extra', 'compiler-rt', 'lld', 'mlir'],
+                        checks=['check-all'],
+                        extra_configure_args=[
+                            '-DCMAKE_BUILD_TYPE=Release',
+                            '-DCMAKE_C_COMPILER=/usr/bin/gcc',
+                            '-DCMAKE_CXX_COMPILER=/usr/bin/g++',
+                            '-DLLVM_ENABLE_ASSERTIONS=On',
+                            '-DLLVM_BUILD_EXAMPLES=On',
+                            "-DLLVM_LIT_ARGS='-v --xunit-xml-output test-results.xml'",
+                            '-DLLVM_CCACHE_BUILD=On',
+                            '-DLLVM_CCACHE_DIR=/ccache',
+                            '-DLLVM_CCACHE_MAXSIZE=20G',
+                            '-DLLVM_TARGETS_TO_BUILD=X86',
+                            '-DCMAKE_EXPORT_COMPILE_COMMANDS=1',
+                            '-DLLVM_BUILD_LLVM_DYLIB=On',
+                            '-DLLVM_LINK_LLVM_DYLIB=On',
+                            '-DCLANG_LINK_CLANG_DYLIB=On',
+                            '-DBUILD_SHARED_LIBS=Off',
+                        ])},
     ]
 
 # Sanitizer builders.
 def _get_sanitizer_builders():
       return [
           {'name': "sanitizer-x86_64-linux",
            'slavenames' :["sanitizer-buildbot1", "sanitizer-buildbot2"],
            'builddir': "sanitizer-x86_64-linux",
            'factory': SanitizerBuilder.getSanitizerBuildFactory()},
           {'name': "sanitizer-x86_64-linux-fast",
            'slavenames' :["sanitizer-buildbot1", "sanitizer-buildbot2"],

buildbot/osuosl/master/config/slaves.py

return [
 
         # Debian 9.0 x86_64 64-core GCE instances
         create_slave("fuchsia-debian-64-us-central1-a-1", properties={'jobs': 64}, max_builds=1),
         create_slave("fuchsia-debian-64-us-central1-b-1", properties={'jobs': 64}, max_builds=1),
 
         # Fedora latest stable x86_64, Intel i5-2500, 4 cores, 12GB RAM
         create_slave("lldb-x86_64-fedora", properties={'jobs': 4}, max_builds=1),
 
+        # Fedora latest stable, arch=x86_64, running on RedHat internal OpenShift PSI cluster
+        create_slave("fedora-llvm-x86_64", properties={'jobs': 32}, max_builds=1),
+
         # Debian x86_64 Buster Xeon(R) Gold 6154 CPU @ 3.00GHz, 192GB RAM
         create_slave("lldb-x86_64-debian", properties={'jobs': 72}, max_builds=1),
 
         # Debian x86_64 Intel Broadwell 32 CPUs, 120 GB RAM
         create_slave("libc-x86_64-debian", properties={'jobs': 32}, max_builds=2),
 
         # Windows Server on Xeon Gold 6130 (2x2.1GHz), 128Gb of RAM
         create_slave("as-builder-1", properties={