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