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# CMakeLists.txt file for unit testing OpenMP Library
include(FindPythonInterp)
include(CheckTypeSize)
include(CheckFunctionExists)
include(CheckLibraryExists)
if(NOT PYTHONINTERP_FOUND)
libomp_warning_say("Could not find Python.")
libomp_warning_say("The check-libomp target will not be available!")
return()
endif()
# Some tests use math functions
check_library_exists(m sqrt "" LIBOMP_HAVE_LIBM)
# When using libgcc, -latomic may be needed for atomics
# (but when using compiler-rt, the atomics will be built-in)
# Note: we can not check for __atomic_load because clang treats it
# as special built-in and that breaks CMake checks
check_function_exists(__atomic_load_1 LIBOMP_HAVE_BUILTIN_ATOMIC)
if(NOT LIBOMP_HAVE_BUILTIN_ATOMIC)
check_library_exists(atomic __atomic_load_1 "" LIBOMP_HAVE_LIBATOMIC)
else()
# not needed
set(LIBOMP_HAVE_LIBATOMIC 0)
endif()
macro(pythonize_bool var)
if (${var})
set(${var} True)
else()
set(${var} False)
endif()
endmacro()
pythonize_bool(LIBOMP_USE_HWLOC)
pythonize_bool(LIBOMP_OMPT_SUPPORT)
pythonize_bool(LIBOMP_OMPT_OPTIONAL)
pythonize_bool(LIBOMP_HAVE_LIBM)
pythonize_bool(LIBOMP_HAVE_LIBATOMIC)
set(LIBOMP_TEST_CFLAGS "" CACHE STRING
"Extra compiler flags to send to the test compiler")
if(${OPENMP_STANDALONE_BUILD})
# Make sure we can use the console pool for recent cmake and ninja > 1.5
if(CMAKE_VERSION VERSION_LESS 3.1.20141117)
set(cmake_3_2_USES_TERMINAL)
else()
set(cmake_3_2_USES_TERMINAL USES_TERMINAL)
endif()
set(LIBOMP_TEST_COMPILER ${CMAKE_C_COMPILER} CACHE STRING
"Compiler to use for testing OpenMP library")
set(LIBOMP_TEST_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE STRING
"Compiler to use for testing OpenMP library")
set(LIBOMP_TEST_OPENMP_FLAG -fopenmp CACHE STRING
"OpenMP compiler flag to use for testing OpenMP library")
find_program(LIBOMP_LLVM_LIT_EXECUTABLE
NAMES llvm-lit lit.py lit
PATHS ${OPENMP_LLVM_TOOLS_DIR})
if(NOT LIBOMP_LLVM_LIT_EXECUTABLE)
libomp_say("Cannot find llvm-lit.")
libomp_say("Please put llvm-lit in your PATH, set LIBOMP_LLVM_LIT_EXECUTABLE to its full path or point OPENMP_LLVM_TOOLS_DIR to its directory")
libomp_warning_say("The check-libomp target will not be available!")
return()
endif()
find_program(FILECHECK_EXECUTABLE
NAMES FileCheck
PATHS ${OPENMP_LLVM_TOOLS_DIR})
if (NOT FILECHECK_EXECUTABLE)
# set to empty string so that lit can disable dependent tests
set(FILECHECK_EXECUTABLE "")
endif()
# Set lit arguments
# The -j 1 lets the actual tests run with the entire machine.
# We have one test thread that spawns the tests serially. This allows
# Each test to use the entire machine.
set(LIBOMP_LIT_ARGS_DEFAULT "-sv --show-unsupported --show-xfail")
if(MSVC OR XCODE)
set(LIBOMP_LIT_ARGS_DEFAULT "${LIBOMP_LIT_ARGS_DEFAULT} --no-progress-bar")
endif()
set(LIBOMP_LIT_ARGS "${LIBOMP_LIT_ARGS_DEFAULT}" CACHE STRING
"Default options for lit")
separate_arguments(LIBOMP_LIT_ARGS)
add_custom_target(check-libomp
COMMAND ${PYTHON_EXECUTABLE} ${LIBOMP_LLVM_LIT_EXECUTABLE} ${LIBOMP_LIT_ARGS} ${CMAKE_CURRENT_BINARY_DIR}
DEPENDS omp
COMMENT "Running libomp tests"
${cmake_3_2_USES_TERMINAL}
)
else()
# LLVM source tree build, test just-built clang
if(NOT MSVC)
set(LIBOMP_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang)
set(LIBOMP_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++)
else()
set(LIBOMP_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang.exe)
set(LIBOMP_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++.exe)
endif()
set(LIBOMP_TEST_OPENMP_FLAG -fopenmp=libomp)
set(FILECHECK_EXECUTABLE ${LLVM_RUNTIME_OUTPUT_INTDIR}/FileCheck)
# Use add_lit_testsuite() from LLVM CMake.
add_lit_testsuite(check-libomp
"Running libomp tests"
${CMAKE_CURRENT_BINARY_DIR}
DEPENDS clang clang-headers FileCheck omp
)
endif()
# Configure the lit.site.cfg.in file
set(AUTO_GEN_COMMENT "## Autogenerated by libomp configuration.\n# Do not edit!")
configure_file(lit.site.cfg.in lit.site.cfg @ONLY)
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