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.
5 function(tablegen project ofn)
6 # Validate calling context.
8 ${project}_TABLEGEN_EXE
13 message(FATAL_ERROR "${v} not set")
17 file(GLOB local_tds "*.td")
18 file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
20 if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
21 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
23 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE
24 ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
26 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
27 # Generate tablegen output in a temporary file.
28 COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
29 -I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR}
30 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
31 -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
32 # The file in LLVM_TARGET_DEFINITIONS may be not in the current
33 # directory and local_tds may not contain it, so we must
34 # explicitly list it here:
35 DEPENDS ${${project}_TABLEGEN_EXE} ${local_tds} ${global_tds}
36 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
37 COMMENT "Building ${ofn}..."
39 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
40 # Only update the real output file if there are any differences.
41 # This prevents recompilation of all the files depending on it if there
43 COMMAND ${CMAKE_COMMAND} -E copy_if_different
44 ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
45 ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
46 DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
47 COMMENT "Updating ${ofn}..."
50 # `make clean' must remove all those generated files:
51 set_property(DIRECTORY APPEND
52 PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn}.tmp ${ofn})
54 set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE)
55 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES
59 # Creates a target for publicly exporting tablegen dependencies.
60 function(add_public_tablegen_target target)
61 if(NOT TABLEGEN_OUTPUT)
62 message(FATAL_ERROR "Requires tablegen() definitions as TABLEGEN_OUTPUT.")
64 add_custom_target(${target}
65 DEPENDS ${TABLEGEN_OUTPUT})
66 if(LLVM_COMMON_DEPENDS)
67 add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
69 set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
70 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE)
73 if(CMAKE_CROSSCOMPILING)
74 set(CX_NATIVE_TG_DIR "${CMAKE_BINARY_DIR}/native")
76 add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}
77 COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR}
78 COMMENT "Creating ${CX_NATIVE_TG_DIR}...")
80 # Forward a subset of configure options to discover additional tablegen modules.
81 get_cmake_property(_variableNames CACHE_VARIABLES)
82 foreach (_variableName ${_variableNames})
83 if (_variableName MATCHES "^(LLVM_EXTERNAL_.*_SOURCE_DIR)$")
84 list(APPEND CX_CMAKE_ARGUMENTS "-D${_variableName}=\"${${_variableName}}\"")
88 add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}/CMakeCache.txt
89 # TODO: Clear the old CMakeCache.txt somehow without breaking restat.
90 COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release
91 -DLLVM_BUILD_POLLY=OFF ${CX_CMAKE_ARGUMENTS}
92 -G "${CMAKE_GENERATOR}" ${CMAKE_SOURCE_DIR}
93 WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
94 DEPENDS ${CX_NATIVE_TG_DIR}
95 COMMENT "Configuring native TableGen...")
97 add_custom_target(ConfigureNativeTableGen DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt)
99 set_directory_properties(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES ${CX_NATIVE_TG_DIR})
102 macro(add_tablegen target project)
103 set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
104 set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
105 add_llvm_utility(${target} ${ARGN})
106 set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
108 set(${project}_TABLEGEN "${target}" CACHE
109 STRING "Native TableGen executable. Saves building one when cross-compiling.")
111 # Upgrade existing LLVM_TABLEGEN setting.
112 if(${project} STREQUAL LLVM)
113 if(${LLVM_TABLEGEN} STREQUAL tblgen)
114 set(LLVM_TABLEGEN "${target}" CACHE
115 STRING "Native TableGen executable. Saves building one when cross-compiling."
120 # Effective tblgen executable to be used:
121 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
123 if(CMAKE_CROSSCOMPILING)
124 if( ${${project}_TABLEGEN} STREQUAL "${target}" )
125 set(${project}_TABLEGEN_EXE "${CX_NATIVE_TG_DIR}/bin/${target}")
126 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
128 add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE}
129 COMMAND ${CMAKE_BUILD_TOOL} ${target}
130 DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt
131 WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
132 COMMENT "Building native TableGen...")
133 add_custom_target(${project}NativeTableGen DEPENDS ${${project}_TABLEGEN_EXE})
134 add_dependencies(${project}NativeTableGen ConfigureNativeTableGen)
136 add_dependencies(${target} ${project}NativeTableGen)
141 if(CMAKE_SIZEOF_VOID_P MATCHES "8")
142 set_target_properties(${target} PROPERTIES LINK_FLAGS -Wl,--stack,16777216)
143 endif(CMAKE_SIZEOF_VOID_P MATCHES "8")
145 if (${project} STREQUAL LLVM AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
146 install(TARGETS ${target}
148 RUNTIME DESTINATION bin)
150 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${target})