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      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 project 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 ${${project}_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 ${${project}_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 
     48 function(add_public_tablegen_target target)
     49   # Creates a target for publicly exporting tablegen dependencies.
     50   if( TABLEGEN_OUTPUT )
     51     add_custom_target(${target}
     52       DEPENDS ${TABLEGEN_OUTPUT})
     53     if (LLVM_COMMON_DEPENDS)
     54       add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
     55     endif ()
     56     set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
     57   endif( TABLEGEN_OUTPUT )
     58 endfunction()
     59 
     60 if(CMAKE_CROSSCOMPILING)
     61   set(CX_NATIVE_TG_DIR "${CMAKE_BINARY_DIR}/native")
     62 
     63   add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}
     64     COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR}
     65     COMMENT "Creating ${CX_NATIVE_TG_DIR}...")
     66 
     67   add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}/CMakeCache.txt
     68     COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release
     69                              -DLLVM_BUILD_POLLY=OFF
     70                              -G "${CMAKE_GENERATOR}" ${CMAKE_SOURCE_DIR}
     71     WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
     72     DEPENDS ${CX_NATIVE_TG_DIR}
     73     COMMENT "Configuring native TableGen...")
     74 
     75   add_custom_target(ConfigureNativeTableGen DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt)
     76 
     77   set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${CX_NATIVE_TG_DIR})
     78 endif()
     79 
     80 macro(add_tablegen target project)
     81   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR})
     82 
     83   set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
     84   set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
     85   add_llvm_utility(${target} ${ARGN})
     86   set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
     87 
     88   set(${project}_TABLEGEN "${target}" CACHE
     89       STRING "Native TableGen executable. Saves building one when cross-compiling.")
     90 
     91   # Upgrade existing LLVM_TABLEGEN setting.
     92   if(${project} STREQUAL LLVM)
     93     if(${LLVM_TABLEGEN} STREQUAL tblgen)
     94       set(LLVM_TABLEGEN "${target}" CACHE
     95           STRING "Native TableGen executable. Saves building one when cross-compiling."
     96           FORCE)
     97     endif()
     98   endif()
     99       
    100   # Effective tblgen executable to be used:
    101   set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
    102 
    103   if(CMAKE_CROSSCOMPILING)
    104     if( ${${project}_TABLEGEN} STREQUAL "${target}" )
    105       set(${project}_TABLEGEN_EXE "${CX_NATIVE_TG_DIR}/bin/${target}")
    106       set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
    107 
    108       add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE}
    109         COMMAND ${CMAKE_BUILD_TOOL} ${target}
    110         DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt
    111         WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
    112         COMMENT "Building native TableGen...")
    113       add_custom_target(${project}NativeTableGen DEPENDS ${${project}_TABLEGEN_EXE})
    114       add_dependencies(${project}NativeTableGen ConfigureNativeTableGen)
    115 
    116       add_dependencies(${target} ${project}NativeTableGen)
    117     endif()
    118   endif()
    119 
    120   if( MINGW )
    121     target_link_libraries(${target} imagehlp psapi)
    122     if(CMAKE_SIZEOF_VOID_P MATCHES "8")
    123       set_target_properties(${target} PROPERTIES LINK_FLAGS -Wl,--stack,16777216)
    124     endif(CMAKE_SIZEOF_VOID_P MATCHES "8")
    125   endif( MINGW )
    126   if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD AND NOT BEOS )
    127     target_link_libraries(${target} pthread)
    128   endif()
    129 
    130   install(TARGETS ${target} RUNTIME DESTINATION bin)
    131 endmacro()
    132