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49 lines
1.8 KiB
CMake
49 lines
1.8 KiB
CMake
if(NOT LLVM_ENABLE_PIC)
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message(FATAL_ERROR "Python bindings require LLVM_ENABLE_PIC=ON. "
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"Please reconfigure LLVM with -DLLVM_ENABLE_PIC=ON")
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endif()
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set(BINDINGS_MINIMUM_PYTHON_VERSION 3.10)
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find_package(Python ${BINDINGS_MINIMUM_PYTHON_VERSION} COMPONENTS Interpreter Development.Module REQUIRED)
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if(nanobind_DIR)
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message(STATUS "Using explicit nanobind cmake directory: ${nanobind_DIR}")
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else()
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message(STATUS "Checking for nanobind in python path...")
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execute_process(
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COMMAND "${Python_EXECUTABLE}" -m nanobind --cmake_dir
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RESULT_VARIABLE STATUS
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OUTPUT_VARIABLE PACKAGE_DIR
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET
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)
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if(NOT STATUS EQUAL "0")
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message(FATAL_ERROR "nanobind not found (install via 'pip install nanobind' or set nanobind_DIR)")
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endif()
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message(STATUS "found nanobind at: ${PACKAGE_DIR}")
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set(nanobind_DIR "${PACKAGE_DIR}")
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endif()
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find_package(nanobind CONFIG REQUIRED)
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nanobind_add_module(ir2vec MODULE PyIR2Vec.cpp)
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set(LLVM_IR2VEC_BINDINGS_DIR "${CMAKE_CURRENT_BINARY_DIR}" CACHE INTERNAL "")
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set_target_properties(ir2vec PROPERTIES
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LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
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)
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# Python bindings require exception handling and RTTI to convert C++ exceptions
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# to Python exceptions. LLVM core is compiled with -fno-exceptions -fno-rtti,
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# but Python bindings are compiled separately with these features enabled.
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# This follows the pattern established by MLIR Python bindings
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# (see mlir/cmake/modules/AddMLIRPython.cmake).
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target_compile_options(ir2vec PRIVATE -fexceptions -frtti)
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target_link_libraries(ir2vec PRIVATE LLVMIREmbUtils)
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target_include_directories(ir2vec PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/..)
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message(STATUS "Python bindings for llvm-ir2vec will be built with nanobind")
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