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# LLVM_TARGET_DEFINITIONS must contain the name of the .td file to process,
# while LLVM_TARGET_DEPENDS may contain additional file dependencies.
# Extra parameters for `tblgen' may come after `ofn' parameter.
# Adds the name of the generated file to TABLEGEN_OUTPUT.
include(LLVMDistributionSupport)
# Clear out any pre-existing compile_commands file before processing. This
# allows for generating a clean compile_commands on each configure.
file(REMOVE ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml)
function(tablegen project ofn)
cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})
# Override ${project} with ${project}_TABLEGEN_PROJECT
if(NOT "${${project}_TABLEGEN_PROJECT}" STREQUAL "")
set(project ${${project}_TABLEGEN_PROJECT})
endif()
# Validate calling context.
if(NOT ${project}_TABLEGEN_EXE)
message(FATAL_ERROR "${project}_TABLEGEN_EXE not set")
endif()
# Use depfile instead of globbing arbitrary *.td(s) for Ninja.
if(CMAKE_GENERATOR MATCHES "Ninja")
# Make output path relative to build.ninja, assuming located on
# ${CMAKE_BINARY_DIR}.
# CMake emits build targets as relative paths but Ninja doesn't identify
# absolute path (in *.d) as relative path (in build.ninja)
# Note that tblgen is executed on ${CMAKE_BINARY_DIR} as working directory.
file(RELATIVE_PATH ofn_rel
${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})
set(additional_cmdline
-o ${ofn_rel}
-d ${ofn_rel}.d
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.d
)
set(local_tds)
set(global_tds)
else()
file(GLOB local_tds "*.td")
file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
set(additional_cmdline
-o ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
)
endif()
if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
else()
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE
${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
endif()
if (LLVM_ENABLE_DAGISEL_COV AND "-gen-dag-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-coverage")
endif()
if (LLVM_ENABLE_GISEL_COV AND "-gen-global-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-instrument-gisel-coverage")
list(APPEND LLVM_TABLEGEN_FLAGS "-gisel-coverage-file=${LLVM_GISEL_COV_PREFIX}all")
endif()
if (LLVM_OMIT_DAGISEL_COMMENTS AND "-gen-dag-isel" IN_LIST ARGN)
list(APPEND LLVM_TABLEGEN_FLAGS "-omit-comments")
endif()
# MSVC can't support long string literals ("long" > 65534 bytes)[1], so if there's
# a possibility of generated tables being consumed by MSVC, generate arrays of
# char literals, instead. If we're cross-compiling, then conservatively assume
# that the source might be consumed by MSVC.
# [1] https://docs.microsoft.com/en-us/cpp/cpp/compiler-limits?view=vs-2017
if (MSVC AND project STREQUAL LLVM)
list(APPEND LLVM_TABLEGEN_FLAGS "--long-string-literals=0")
endif()
if (CMAKE_GENERATOR MATCHES "Visual Studio")
# Visual Studio has problems with llvm-tblgen's native --write-if-changed
# behavior. Since it doesn't do restat optimizations anyway, just don't
# pass --write-if-changed there.
set(tblgen_change_flag)
else()
set(tblgen_change_flag "--write-if-changed")
endif()
if (NOT LLVM_ENABLE_WARNINGS)
list(APPEND LLVM_TABLEGEN_FLAGS "-no-warn-on-unused-template-args")
endif()
# We need both _TABLEGEN_TARGET and _TABLEGEN_EXE in the DEPENDS list
# (both the target and the file) to have .inc files rebuilt on
# a tablegen change, as cmake does not propagate file-level dependencies
# of custom targets. See the following ticket for more information:
# https://cmake.org/Bug/view.php?id=15858
# The dependency on both, the target and the file, produces the same
# dependency twice in the result file when
# ("${${project}_TABLEGEN_TARGET}" STREQUAL "${${project}_TABLEGEN_EXE}")
# but lets us having smaller and cleaner code here.
get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
# Get the current set of include paths for this td file.
cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})
get_directory_property(tblgen_includes INCLUDE_DIRECTORIES)
list(APPEND tblgen_includes ${ARG_EXTRA_INCLUDES})
# Filter out any empty include items.
list(REMOVE_ITEM tblgen_includes "")
# Build the absolute path for the current input file.
if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
else()
set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS})
endif()
# Append this file and its includes to the compile commands file.
# This file is used by the TableGen LSP Language Server (tblgen-lsp-server).
file(APPEND ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml
"--- !FileInfo:\n"
" filepath: \"${LLVM_TARGET_DEFINITIONS_ABSOLUTE}\"\n"
" includes: \"${CMAKE_CURRENT_SOURCE_DIR};${tblgen_includes}\"\n"
)
# Filter out empty items before prepending each entry with -I
list(REMOVE_ITEM tblgen_includes "")
list(TRANSFORM tblgen_includes PREPEND -I)
set(tablegen_exe ${${project}_TABLEGEN_EXE})
set(tablegen_depends ${${project}_TABLEGEN_TARGET} ${tablegen_exe})
if(LLVM_PARALLEL_TABLEGEN_JOBS)
set(LLVM_TABLEGEN_JOB_POOL JOB_POOL tablegen_job_pool)
else()
set(LLVM_TABLEGEN_JOB_POOL "")
endif()
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
COMMAND ${tablegen_exe} ${ARG_UNPARSED_ARGUMENTS} -I ${CMAKE_CURRENT_SOURCE_DIR}
${tblgen_includes}
${LLVM_TABLEGEN_FLAGS}
${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
${tblgen_change_flag}
${additional_cmdline}
# The file in LLVM_TARGET_DEFINITIONS may be not in the current
# directory and local_tds may not contain it, so we must
# explicitly list it here:
DEPENDS ${ARG_DEPENDS} ${tablegen_depends}
${local_tds} ${global_tds}
${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
${LLVM_TARGET_DEPENDS}
${LLVM_TABLEGEN_JOB_POOL}
COMMENT "Building ${ofn}..."
)
# `make clean' must remove all those generated files:
set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${ofn})
set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn} PARENT_SCOPE)
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ofn} PROPERTIES
GENERATED 1)
endfunction()
# Creates a target for publicly exporting tablegen dependencies.
function(add_public_tablegen_target target)
if(NOT TABLEGEN_OUTPUT)
message(FATAL_ERROR "Requires tablegen() definitions as TABLEGEN_OUTPUT.")
endif()
add_custom_target(${target}
DEPENDS ${TABLEGEN_OUTPUT})
if(LLVM_COMMON_DEPENDS)
add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
endif()
get_subproject_title(subproject_title)
set_target_properties(${target} PROPERTIES FOLDER "${subproject_title}/Tablegenning")
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${target} PARENT_SCOPE)
endfunction()
macro(add_tablegen target project)
cmake_parse_arguments(ADD_TABLEGEN "" "DESTINATION;EXPORT" "" ${ARGN})
set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
add_llvm_executable(${target} DISABLE_LLVM_LINK_LLVM_DYLIB
${ADD_TABLEGEN_UNPARSED_ARGUMENTS})
set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
set(${project}_TABLEGEN_DEFAULT "${target}")
if (LLVM_NATIVE_TOOL_DIR)
if (EXISTS "${LLVM_NATIVE_TOOL_DIR}/${target}${LLVM_HOST_EXECUTABLE_SUFFIX}")
set(${project}_TABLEGEN_DEFAULT "${LLVM_NATIVE_TOOL_DIR}/${target}${LLVM_HOST_EXECUTABLE_SUFFIX}")
endif()
endif()
# FIXME: Quick fix to reflect LLVM_TABLEGEN to llvm-min-tblgen
if("${target}" STREQUAL "llvm-min-tblgen"
AND NOT "${LLVM_TABLEGEN}" STREQUAL ""
AND NOT "${LLVM_TABLEGEN}" STREQUAL "llvm-tblgen")
set(${project}_TABLEGEN_DEFAULT "${LLVM_TABLEGEN}")
endif()
if(ADD_TABLEGEN_EXPORT)
set(${project}_TABLEGEN "${${project}_TABLEGEN_DEFAULT}" CACHE
STRING "Native TableGen executable. Saves building one when cross-compiling.")
else()
# Internal tablegen
set(${project}_TABLEGEN "${${project}_TABLEGEN_DEFAULT}")
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_ALL ON)
endif()
# Effective tblgen executable to be used:
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
set(${project}_TABLEGEN_TARGET ${${project}_TABLEGEN} PARENT_SCOPE)
if(LLVM_USE_HOST_TOOLS)
if( ${${project}_TABLEGEN} STREQUAL "${target}" )
# The NATIVE tablegen executable *must* depend on the current target one
# otherwise the native one won't get rebuilt when the tablgen sources
# change, and we end up with incorrect builds.
build_native_tool(${target} ${project}_TABLEGEN_EXE DEPENDS ${target})
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
add_custom_target(${target}-host DEPENDS ${${project}_TABLEGEN_EXE})
get_subproject_title(subproject_title)
set_target_properties(${target}-host PROPERTIES FOLDER "${subproject_title}/Native")
set(${project}_TABLEGEN_TARGET ${target}-host PARENT_SCOPE)
# If we're using the host tablegen, and utils were not requested, we have no
# need to build this tablegen.
if ( NOT LLVM_BUILD_UTILS )
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_ALL ON)
endif()
endif()
endif()
if (ADD_TABLEGEN_DESTINATION AND NOT LLVM_INSTALL_TOOLCHAIN_ONLY AND
(LLVM_BUILD_UTILS OR ${target} IN_LIST LLVM_DISTRIBUTION_COMPONENTS))
set(export_arg)
if(ADD_TABLEGEN_EXPORT)
get_target_export_arg(${target} ${ADD_TABLEGEN_EXPORT} export_arg)
endif()
install(TARGETS ${target}
${export_arg}
COMPONENT ${target}
RUNTIME DESTINATION "${ADD_TABLEGEN_DESTINATION}")
if(NOT LLVM_ENABLE_IDE)
add_llvm_install_targets("install-${target}"
DEPENDS ${target}
COMPONENT ${target})
endif()
endif()
if(ADD_TABLEGEN_EXPORT)
string(TOUPPER ${ADD_TABLEGEN_EXPORT} export_upper)
set_property(GLOBAL APPEND PROPERTY ${export_upper}_EXPORTS ${target})
endif()
endmacro()
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