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 include(LLVMExternalProjectUtils)
7 if(LLVM_MAIN_INCLUDE_DIR)
8 set(LLVM_TABLEGEN_FLAGS -I ${LLVM_MAIN_INCLUDE_DIR})
11 function(tablegen project ofn)
12 # Validate calling context.
13 if(NOT ${project}_TABLEGEN_EXE)
14 message(FATAL_ERROR "${project}_TABLEGEN_EXE not set")
17 # Use depfile instead of globbing arbitrary *.td(s)
18 # DEPFILE is available for Ninja Generator with CMake>=3.7.
19 if(CMAKE_GENERATOR STREQUAL "Ninja" AND NOT CMAKE_VERSION VERSION_LESS 3.7)
20 # Make output path relative to build.ninja, assuming located on
21 # ${CMAKE_BINARY_DIR}.
22 # CMake emits build targets as relative paths but Ninja doesn't identify
23 # absolute path (in *.d) as relative path (in build.ninja)
24 # Note that tblgen is executed on ${CMAKE_BINARY_DIR} as working directory.
25 file(RELATIVE_PATH ofn_rel
26 ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})
27 set(additional_cmdline
30 WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
31 DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.d
36 file(GLOB local_tds "*.td")
37 file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
38 set(additional_cmdline
39 -o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
43 if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
44 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
46 set(LLVM_TARGET_DEFINITIONS_ABSOLUTE
47 ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
49 if (LLVM_ENABLE_DAGISEL_COV)
50 list(FIND ARGN "-gen-dag-isel" idx)
51 if( NOT idx EQUAL -1 )
52 list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-coverage")
55 if (LLVM_ENABLE_GISEL_COV)
56 list(FIND ARGN "-gen-global-isel" idx)
57 if( NOT idx EQUAL -1 )
58 list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-gisel-coverage")
59 list(APPEND LLVM_TABLEGEN_FLAGS "-gisel-coverage-file=${LLVM_GISEL_COV_PREFIX}all")
63 # We need both _TABLEGEN_TARGET and _TABLEGEN_EXE in the DEPENDS list
64 # (both the target and the file) to have .inc files rebuilt on
65 # a tablegen change, as cmake does not propagate file-level dependencies
66 # of custom targets. See the following ticket for more information:
67 # https://cmake.org/Bug/view.php?id=15858
68 # The dependency on both, the target and the file, produces the same
69 # dependency twice in the result file when
70 # ("${${project}_TABLEGEN_TARGET}" STREQUAL "${${project}_TABLEGEN_EXE}")
71 # but lets us having smaller and cleaner code here.
72 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
73 COMMAND ${${project}_TABLEGEN_EXE} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
74 ${LLVM_TABLEGEN_FLAGS}
75 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
77 # The file in LLVM_TARGET_DEFINITIONS may be not in the current
78 # directory and local_tds may not contain it, so we must
79 # explicitly list it here:
80 DEPENDS ${${project}_TABLEGEN_TARGET} ${${project}_TABLEGEN_EXE}
81 ${local_tds} ${global_tds}
82 ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
83 COMMENT "Building ${ofn}..."
86 # `make clean' must remove all those generated files:
87 set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn})
89 set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE)
90 set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES
94 # Creates a target for publicly exporting tablegen dependencies.
95 function(add_public_tablegen_target target)
96 if(NOT TABLEGEN_OUTPUT)
97 message(FATAL_ERROR "Requires tablegen() definitions as TABLEGEN_OUTPUT.")
99 add_custom_target(${target}
100 DEPENDS ${TABLEGEN_OUTPUT})
101 if(LLVM_COMMON_DEPENDS)
102 add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
104 set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
105 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE)
108 macro(add_tablegen target project)
109 set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
110 set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
112 # CMake-3.9 doesn't let compilation units depend on their dependent libraries.
113 if(NOT (CMAKE_GENERATOR STREQUAL "Ninja" AND NOT CMAKE_VERSION VERSION_LESS 3.9) AND NOT XCODE)
114 # FIXME: It leaks to user, callee of add_tablegen.
115 set(LLVM_ENABLE_OBJLIB ON)
118 add_llvm_executable(${target} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
119 set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
121 set(${project}_TABLEGEN "${target}" CACHE
122 STRING "Native TableGen executable. Saves building one when cross-compiling.")
124 # Upgrade existing LLVM_TABLEGEN setting.
125 if(${project} STREQUAL LLVM)
126 if(${LLVM_TABLEGEN} STREQUAL tblgen)
127 set(LLVM_TABLEGEN "${target}" CACHE
128 STRING "Native TableGen executable. Saves building one when cross-compiling."
133 # Effective tblgen executable to be used:
134 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
135 set(${project}_TABLEGEN_TARGET ${${project}_TABLEGEN} PARENT_SCOPE)
137 if(LLVM_USE_HOST_TOOLS)
138 if( ${${project}_TABLEGEN} STREQUAL "${target}" )
139 if (NOT CMAKE_CONFIGURATION_TYPES)
140 set(${project}_TABLEGEN_EXE "${LLVM_NATIVE_BUILD}/bin/${target}")
142 set(${project}_TABLEGEN_EXE "${LLVM_NATIVE_BUILD}/Release/bin/${target}")
144 set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
146 llvm_ExternalProject_BuildCmd(tblgen_build_cmd ${target}
148 CONFIGURATION Release)
149 # Create an artificial dependency between tablegen projects, because they
150 # compile the same dependencies, thus using the same build folders.
151 # FIXME: A proper fix requires sequentially chaining tablegens.
152 if (NOT ${project} STREQUAL LLVM AND TARGET ${project}-tablegen-host)
153 add_dependencies(${project}-tablegen-host LLVM-tablegen-host)
155 add_custom_command(OUTPUT ${${project}_TABLEGEN_EXE}
156 COMMAND ${tblgen_build_cmd}
157 DEPENDS CONFIGURE_LLVM_NATIVE ${target}
158 WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
159 COMMENT "Building native TableGen..."
161 add_custom_target(${project}-tablegen-host DEPENDS ${${project}_TABLEGEN_EXE})
162 set(${project}_TABLEGEN_TARGET ${project}-tablegen-host PARENT_SCOPE)
166 if (${project} STREQUAL LLVM AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
167 if(${target} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
168 NOT LLVM_DISTRIBUTION_COMPONENTS)
169 set(export_to_llvmexports EXPORT LLVMExports)
172 install(TARGETS ${target}
173 ${export_to_llvmexports}
174 RUNTIME DESTINATION ${LLVM_TOOLS_INSTALL_DIR})
176 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${target})