Introduce External/OpenCL subsuite prototype

External/CMakeLists.txt

@@ -10,3 +10,4 @@ add_subdirectory(ffmpeg)
 add_subdirectory(skidmarks10)
 add_subdirectory(sollve_vv)
 add_subdirectory(smoke)
+add_subdirectory(OpenCL)

External/OpenCL/CMakeLists.txt

@@ -0,0 +1,49 @@
+include(External)
+
+llvm_externals_find(TEST_SUITE_OPENCL_ROOT "opencl" "OpenCL prerequisites")
+message(STATUS "TEST_SUITE_OPENCL_ROOT: ${TEST_SUITE_OPENCL_ROOT}")
+get_filename_component(OPENCL_CLANG_PATH ${CMAKE_CXX_COMPILER} DIRECTORY)
+string(REGEX REPLACE "bin$" "lib" OPENCL_LIB_PATH "${OPENCL_CLANG_PATH}")
+message(STATUS "OPENCL_CLANG_PATH: ${OPENCL_CLANG_PATH}")
+message(STATUS "OPENCL_LIB_PATH: ${OPENCL_LIB_PATH}")
+
+macro(create_local_test TestName TestSources TestData VariantCPPFLAGS VariantLDFLAGS VariantLibs)
+    set(_sources "${TestSources}")
+    set(_executable ${TestName})
+    set(_data "${TestData}")
+    llvm_test_run(WORKDIR %S
+      EXECUTABLE "LD_LIBRARY_PATH=${OPENCL_LIB_PATH}" ./${_executable} > %o
+    )
+    set(REFERENCE_OUTPUT)
+    # Verify reference output if it exists.
+    if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${TestName}.reference_output)
+      set(REFERENCE_OUTPUT ${TestName}.reference_output)
+      llvm_test_verify(WORKDIR %S
+        %b/${FPCMP} %o ${REFERENCE_OUTPUT}
+      )
+      llvm_test_executable(${_executable} "${_sources}")
+      llvm_test_data(${_executable} ${_data} ${REFERENCE_OUTPUT})
+    else()
+      llvm_test_executable(${_executable} "${_sources}")
+      llvm_test_data(${_executable} ${_data})
+    endif()
+    target_compile_options(${_executable} PUBLIC ${VariantCPPFLAGS})
+    target_link_options(${_executable} PUBLIC ${VariantLDFLAGS})
+    if(VariantLibs)
+      target_link_libraries(${_executable} ${VariantLibs})
+    endif()
+    add_dependencies(opencl-tests-simple-${TestName} ${_executable})
+endmacro()
+
+if(TEST_SUITE_OPENCL_ROOT)
+  add_custom_target(opencl-tests-simple COMMENT "Build all simple OpenCL tests")
+  # Add common OpenCL related flags
+  list(APPEND LDFLAGS -lOpenCL -L${OPENCL_LIB_PATH})
+  add_subdirectory(tests)
+  message(STATUS "OPENCL_SIMPLE_TESTS_LIST: ${OPENCL_SIMPLE_TESTS_LIST}")
+  add_custom_target(check-opencl-simple COMMENT "Run all simple OpenCL tests"
+    COMMAND ${TEST_SUITE_LIT} ${TEST_SUITE_LIT_FLAGS} ${OPENCL_SIMPLE_TESTS_LIST}
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    DEPENDS opencl-tests-simple
+    USES_TERMINAL)
+endif()

External/OpenCL/README

@@ -0,0 +1,39 @@
+OpenCL Tests
+==========
+
+OpenCL tests are enabled if cmake is invoked with
+-DTEST_SUITE_EXTERNALS_DIR=<externals path> and specified externals directory contains at least one ROCm installation.
+
+Expected externals directory structure:
+Externals/
+  opencl/
+    opencl[-version]/ -- OpenCL compiler installation, which should, at the very least, have the following components:
+      include/CL/ -- header files including opencl.h 
+      bin/ -- binaries including clang/clang++ (and clinfo for convenience)
+      lib/ -- libraries including libOpenCL.so and implementation specifics (like libamdocl64.so, libhsa-runtime64.so, librocprofiler-register.so, libamd_comgr.so.2)
+      lib/clang/NN/include/ -- some clang related inclues and libs
+      lib/clang/NN/lib/ -- libclang_rt.builtins-x86_64.a
+
+[export AMDGPU_ARCHS=gfx906;gfx908                 # List of AMDGPU archs to compile, not used at the moment]
+export EXTERNAL_DIR=/your/Externals/path           # Path to Exteranls with the OpenCL compiler
+export CLANG_DIR=/your/clang/bin                   # Path to llvm-test-suite build
+export TEST_SUITE_DIR=/path/to/test-suite-sources  # Path to llvm-test-suite sources
+
+Configure, build and run tests:
+
+```
+$ mkdir build-llvm-test-suite
+$ cd build-llvm-test-suite
+
+$ export EXTERNAL_DIR=/repos/Temp/LlvmTestSuite/Externals
+$ export TEST_SUITE_DIR=/repos/llvm-test-suite
+$ export CLANG_DIR=$EXTERNAL_DIR/opencl/opencl-6.3.0-14740
+
+$ cmake -G Ninja -DTEST_SUITE_EXTERNALS_DIR=$EXTERNAL_DIR -DAMDGPU_ARCHS=$AMDGPU_ARCHS -DCMAKE_CXX_COMPILER="$CLANG_DIR/bin/amdclang++" -DCMAKE_C_COMPILER="$CLANG_DIR/bin/amdclang" $TEST_SUITE_DIR 
+
+$ ninja opencl-tests-simple             # To build all the tests
+$ ninja opencl-tests-simple-HelloWorld  # To build a apecific test
+$ ninja check-opencl-simple             # To build & run all the tests
+$ ninja check-opencl-simple-HelloWorld  # To build & run a specific test
+```
+