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
5macro(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)
46endmacro(tablegen)
47
48function(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 )
58endfunction()
59
60if(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 ${CMAKE_SOURCE_DIR}
70    WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
71    DEPENDS ${CX_NATIVE_TG_DIR}
72    COMMENT "Configuring native TableGen...")
73
74  add_custom_target(ConfigureNativeTableGen DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt)
75
76  set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${CX_NATIVE_TG_DIR})
77endif()
78
79macro(add_tablegen target project)
80  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR})
81
82  set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
83  set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
84  add_llvm_utility(${target} ${ARGN})
85  set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
86
87  set(${project}_TABLEGEN "${target}" CACHE
88      STRING "Native TableGen executable. Saves building one when cross-compiling.")
89
90  # Upgrade existing LLVM_TABLEGEN setting.
91  if(${project} STREQUAL LLVM)
92    if(${LLVM_TABLEGEN} STREQUAL tblgen)
93      set(LLVM_TABLEGEN "${target}" CACHE
94          STRING "Native TableGen executable. Saves building one when cross-compiling."
95          FORCE)
96    endif()
97  endif()
98      
99  # Effective tblgen executable to be used:
100  set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
101
102  if(CMAKE_CROSSCOMPILING)
103    if( ${${project}_TABLEGEN} STREQUAL "${target}" )
104      set(${project}_TABLEGEN_EXE "${CX_NATIVE_TG_DIR}/bin/${target}")
105      set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
106
107      add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE}
108        COMMAND ${CMAKE_BUILD_TOOL} ${target}
109        DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt
110        WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
111        COMMENT "Building native TableGen...")
112      add_custom_target(${project}NativeTableGen DEPENDS ${${project}_TABLEGEN_EXE})
113      add_dependencies(${project}NativeTableGen ConfigureNativeTableGen)
114
115      add_dependencies(${target} ${project}NativeTableGen)
116    endif()
117  endif()
118
119  if( MINGW )
120    target_link_libraries(${target} imagehlp psapi)
121    if(CMAKE_SIZEOF_VOID_P MATCHES "8")
122      set_target_properties(${target} PROPERTIES LINK_FLAGS -Wl,--stack,16777216)
123    endif(CMAKE_SIZEOF_VOID_P MATCHES "8")
124  endif( MINGW )
125  if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD AND NOT BEOS )
126    target_link_libraries(${target} pthread)
127  endif()
128
129  install(TARGETS ${target} RUNTIME DESTINATION bin)
130endmacro()
131