1 # LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process. 2 # Extra parameters for `tblgen' may come after `ofn' parameter. 3 # Adds the name of the generated file to TABLEGEN_OUTPUT. 4 5 macro(tablegen ofn) 6 file(GLOB local_tds "*.td") 7 file(GLOB_RECURSE global_tds "${LLVM_MAIN_SRC_DIR}/include/llvm/*.td") 8 9 if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS}) 10 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS}) 11 else() 12 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE 13 ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS}) 14 endif() 15 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 16 # Generate tablegen output in a temporary file. 17 COMMAND ${LLVM_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR} 18 -I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR} 19 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE} 20 -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 21 # The file in LLVM_TARGET_DEFINITIONS may be not in the current 22 # directory and local_tds may not contain it, so we must 23 # explicitly list it here: 24 DEPENDS ${LLVM_TABLEGEN_EXE} ${local_tds} ${global_tds} 25 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE} 26 COMMENT "Building ${ofn}..." 27 ) 28 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn} 29 # Only update the real output file if there are any differences. 30 # This prevents recompilation of all the files depending on it if there 31 # aren't any. 32 COMMAND ${CMAKE_COMMAND} -E copy_if_different 33 ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 34 ${CMAKE_CURRENT_BINARY_DIR}/${ofn} 35 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp 36 COMMENT "" 37 ) 38 39 # `make clean' must remove all those generated files: 40 set_property(DIRECTORY APPEND 41 PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn}.tmp ${ofn}) 42 43 set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn}) 44 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} 45 PROPERTIES GENERATED 1) 46 endmacro(tablegen) 47
