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38 lines
1.6 KiB
CMake
38 lines
1.6 KiB
CMake
# LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process.
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# Extra parameters for `tblgen' may come after `ofn' parameter.
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# Adds the name of the generated file to TABLEGEN_OUTPUT.
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macro(tablegen ofn)
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file(GLOB local_tds "*.td")
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file(GLOB_RECURSE global_tds "${LLVM_MAIN_SRC_DIR}/include/llvm/*.td")
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if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
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set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
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else()
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set(LLVM_TARGET_DEFINITIONS_ABSOLUTE
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${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
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endif()
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add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
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# Generate tablegen output in a temporary file.
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COMMAND ${LLVM_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
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-I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR}
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${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
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-o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
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DEPENDS tblgen ${local_tds} ${global_tds}
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COMMENT "Building ${ofn}..."
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)
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add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
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# Only update the real output file if there are any differences.
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# This prevents recompilation of all the files depending on it if there
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# aren't any.
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
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${CMAKE_CURRENT_BINARY_DIR}/${ofn}
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DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
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COMMENT ""
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)
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set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})
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set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn}
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PROPERTIES GENERATED 1)
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endmacro(tablegen)
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