derek.holloway
7502bf64a4
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75 lines
3.2 KiB
CMake
75 lines
3.2 KiB
CMake
# Try to detect in the system several dependencies required by the different
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# components of libomptarget. These are the dependencies we have:
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include (FindPackageHandleStandardArgs)
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################################################################################
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# Looking for LLVM...
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################################################################################
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# Note that OPENMP_STANDALONE_BUILD is FALSE, when
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# openmp is built with -DLLVM_ENABLE_RUNTIMES="openmp" vs
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# -DLLVM_ENABLE_PROJECTS="openmp", but openmp build
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# is actually done as a standalone project build with many
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# LLVM CMake variables propagated to it.
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list(APPEND LIBOMPTARGET_LLVM_INCLUDE_DIRS
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${LLVM_MAIN_INCLUDE_DIR} ${LLVM_BINARY_DIR}/include
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)
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message(STATUS
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"Using LLVM include directories: ${LIBOMPTARGET_LLVM_INCLUDE_DIRS}")
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################################################################################
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# Looking for offload-arch...
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################################################################################
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if(TARGET offload-arch)
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get_property(LIBOMPTARGET_OFFLOAD_ARCH TARGET offload-arch PROPERTY LOCATION)
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else()
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find_program(LIBOMPTARGET_OFFLOAD_ARCH NAMES offload-arch
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PATHS ${LLVM_TOOLS_BINARY_DIR})
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endif()
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################################################################################
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# Looking for NVIDIA GPUs...
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################################################################################
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if(LIBOMPTARGET_OFFLOAD_ARCH)
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execute_process(COMMAND ${LIBOMPTARGET_OFFLOAD_ARCH} "--only=nvptx"
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OUTPUT_VARIABLE LIBOMPTARGET_NVPTX_ARCH_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(FIND "${LIBOMPTARGET_NVPTX_ARCH_OUTPUT}" "\n" first_arch_string)
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string(SUBSTRING "${LIBOMPTARGET_NVPTX_ARCH_OUTPUT}" 0 ${first_arch_string}
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arch_string)
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if(arch_string)
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set(LIBOMPTARGET_FOUND_NVIDIA_GPU TRUE)
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set(LIBOMPTARGET_NVPTX_DETECTED_ARCH_LIST "${nvptx_arch_list}")
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endif()
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endif()
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################################################################################
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# Looking for AMD GPUs...
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################################################################################
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if(LIBOMPTARGET_OFFLOAD_ARCH)
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execute_process(COMMAND ${LIBOMPTARGET_OFFLOAD_ARCH} "--only=amdgpu"
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OUTPUT_VARIABLE LIBOMPTARGET_AMDGPU_ARCH_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REPLACE "\n" ";" amdgpu_arch_list "${LIBOMPTARGET_AMDGPU_ARCH_OUTPUT}")
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if(amdgpu_arch_list)
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set(LIBOMPTARGET_FOUND_AMDGPU_GPU TRUE)
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set(LIBOMPTARGET_AMDGPU_DETECTED_ARCH_LIST "${amdgpu_arch_list}")
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endif()
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endif()
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################################################################################
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# Looking for Level0
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################################################################################
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if(LIBOMPTARGET_OFFLOAD_ARCH)
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execute_process(COMMAND ${LIBOMPTARGET_OFFLOAD_ARCH} "--only=intel"
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OUTPUT_VARIABLE LIBOMPTARGET_INTELGPU_ARCH_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REPLACE "\n" ";" intelgpu_arch_list "${LIBOMPTARGET_INTELGPU_ARCH_OUTPUT}")
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if(intelgpu_arch_list)
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set(LIBOMPTARGET_FOUND_INTELGPU_GPU TRUE)
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set(LIBOMPTARGET_INTELGPU_DETECTED_ARCH_LIST "${intelgpu_arch_list}")
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endif()
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endif()
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set(OFFLOAD_PTHREAD_LIB ${LLVM_PTHREAD_LIB})
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