Michał Górny 2aa1af9b1d [MLIR] [CMake] Support building MLIR standalone
Add the necessary bits to CMakeLists to make it possible to configure
MLIR against installed LLVM, and build it with minimal need for LLVM
source tree.  The latter is only necessary to run unittests, and if it
is missing then unittests are skipped with a warning.

This change includes the necessary changes to tests, in particular
adding some missing substitutions and defining missing variables
for lit.site.cfg.py substitution.

Reviewed By: stephenneuendorffer

Differential Revision: https://reviews.llvm.org/D85464

Co-authored-by: Isuru Fernando <isuruf@gmail.com>
2021-02-02 13:10:21 -06:00

252 lines
9.3 KiB
CMake

function(mlir_tablegen ofn)
tablegen(MLIR ${ARGV})
set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
PARENT_SCOPE)
include_directories(${CMAKE_CURRENT_BINARY_DIR})
endfunction()
# Declare a dialect in the include directory
function(add_mlir_dialect dialect dialect_namespace)
set(LLVM_TARGET_DEFINITIONS ${dialect}.td)
mlir_tablegen(${dialect}.h.inc -gen-op-decls)
mlir_tablegen(${dialect}.cpp.inc -gen-op-defs)
mlir_tablegen(${dialect}Types.h.inc -gen-typedef-decls)
mlir_tablegen(${dialect}Types.cpp.inc -gen-typedef-defs)
mlir_tablegen(${dialect}Dialect.h.inc -gen-dialect-decls -dialect=${dialect_namespace})
add_public_tablegen_target(MLIR${dialect}IncGen)
add_dependencies(mlir-headers MLIR${dialect}IncGen)
endfunction()
# Declare a dialect in the include directory
function(add_mlir_interface interface)
set(LLVM_TARGET_DEFINITIONS ${interface}.td)
mlir_tablegen(${interface}.h.inc -gen-op-interface-decls)
mlir_tablegen(${interface}.cpp.inc -gen-op-interface-defs)
add_public_tablegen_target(MLIR${interface}IncGen)
add_dependencies(mlir-generic-headers MLIR${interface}IncGen)
endfunction()
# Generate Documentation
function(add_mlir_doc doc_filename command output_file output_directory)
set(LLVM_TARGET_DEFINITIONS ${doc_filename}.td)
tablegen(MLIR ${output_file}.md ${command})
set(GEN_DOC_FILE ${MLIR_BINARY_DIR}/docs/${output_directory}${output_file}.md)
add_custom_command(
OUTPUT ${GEN_DOC_FILE}
COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_BINARY_DIR}/${output_file}.md
${GEN_DOC_FILE}
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${output_file}.md)
add_custom_target(${output_file}DocGen DEPENDS ${GEN_DOC_FILE})
add_dependencies(mlir-doc ${output_file}DocGen)
endfunction()
# Declare an mlir library which can be compiled in libMLIR.so
# In addition to everything that llvm_add_librar accepts, this
# also has the following option:
# EXCLUDE_FROM_LIBMLIR
# Don't include this library in libMLIR.so. This option should be used
# for test libraries, executable-specific libraries, or rarely used libraries
# with large dependencies.
function(add_mlir_library name)
cmake_parse_arguments(ARG
"SHARED;INSTALL_WITH_TOOLCHAIN;EXCLUDE_FROM_LIBMLIR"
""
"ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS"
${ARGN})
set(srcs)
if(MSVC_IDE OR XCODE)
# Add public headers
file(RELATIVE_PATH lib_path
${MLIR_SOURCE_DIR}/lib/
${CMAKE_CURRENT_SOURCE_DIR}
)
if(NOT lib_path MATCHES "^[.][.]")
file( GLOB_RECURSE headers
${MLIR_SOURCE_DIR}/include/mlir/${lib_path}/*.h
${MLIR_SOURCE_DIR}/include/mlir/${lib_path}/*.def
)
set_source_files_properties(${headers} PROPERTIES HEADER_FILE_ONLY ON)
file( GLOB_RECURSE tds
${MLIR_SOURCE_DIR}/include/mlir/${lib_path}/*.td
)
source_group("TableGen descriptions" FILES ${tds})
set_source_files_properties(${tds}} PROPERTIES HEADER_FILE_ONLY ON)
if(headers OR tds)
set(srcs ${headers} ${tds})
endif()
endif()
endif(MSVC_IDE OR XCODE)
if(srcs OR ARG_ADDITIONAL_HEADERS)
set(srcs
ADDITIONAL_HEADERS
${srcs}
${ARG_ADDITIONAL_HEADERS} # It may contain unparsed unknown args.
)
endif()
if(ARG_SHARED)
set(LIBTYPE SHARED)
else()
# llvm_add_library ignores BUILD_SHARED_LIBS if STATIC is explicitly set,
# so we need to handle it here.
if(BUILD_SHARED_LIBS)
set(LIBTYPE SHARED)
else()
set(LIBTYPE STATIC)
endif()
if(NOT XCODE)
# The Xcode generator doesn't handle object libraries correctly.
list(APPEND LIBTYPE OBJECT)
endif()
# Test libraries and such shouldn't be include in libMLIR.so
if(NOT ARG_EXCLUDE_FROM_LIBMLIR)
set_property(GLOBAL APPEND PROPERTY MLIR_STATIC_LIBS ${name})
set_property(GLOBAL APPEND PROPERTY MLIR_LLVM_LINK_COMPONENTS ${ARG_LINK_COMPONENTS})
set_property(GLOBAL APPEND PROPERTY MLIR_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
endif()
endif()
# MLIR libraries uniformly depend on LLVMSupport. Just specify it once here.
list(APPEND ARG_LINK_COMPONENTS Support)
# LINK_COMPONENTS is necessary to allow libLLVM.so to be properly
# substituted for individual library dependencies if LLVM_LINK_LLVM_DYLIB
# Perhaps this should be in llvm_add_library instead? However, it fails
# on libclang-cpp.so
get_property(llvm_component_libs GLOBAL PROPERTY LLVM_COMPONENT_LIBS)
foreach(lib ${ARG_LINK_LIBS})
if(${lib} IN_LIST llvm_component_libs)
message(SEND_ERROR "${name} specifies LINK_LIBS ${lib}, but LINK_LIBS cannot be used for LLVM libraries. Please use LINK_COMPONENTS instead.")
endif()
endforeach()
list(APPEND ARG_DEPENDS mlir-generic-headers)
llvm_add_library(${name} ${LIBTYPE} ${ARG_UNPARSED_ARGUMENTS} ${srcs} DEPENDS ${ARG_DEPENDS} LINK_COMPONENTS ${ARG_LINK_COMPONENTS} LINK_LIBS ${ARG_LINK_LIBS})
if(TARGET ${name})
target_link_libraries(${name} INTERFACE ${LLVM_COMMON_LIBS})
add_mlir_library_install(${name})
else()
# Add empty "phony" target
add_custom_target(${name})
endif()
set_target_properties(${name} PROPERTIES FOLDER "MLIR libraries")
endfunction(add_mlir_library)
# Adds an MLIR library target for installation.
# This is usually done as part of add_mlir_library but is broken out for cases
# where non-standard library builds can be installed.
function(add_mlir_library_install name)
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
set(export_to_mlirtargets)
if (${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
"mlir-libraries" IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
NOT LLVM_DISTRIBUTION_COMPONENTS)
set(export_to_mlirtargets EXPORT MLIRTargets)
set_property(GLOBAL PROPERTY MLIR_HAS_EXPORTS True)
endif()
install(TARGETS ${name}
COMPONENT ${name}
${export_to_mlirtargets}
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
RUNTIME DESTINATION bin)
if (NOT LLVM_ENABLE_IDE)
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${name})
endif()
set_property(GLOBAL APPEND PROPERTY MLIR_ALL_LIBS ${name})
endif()
set_property(GLOBAL APPEND PROPERTY MLIR_EXPORTS ${name})
endfunction()
# Declare an mlir library which is part of the public C-API and will be
# compiled and exported into libMLIRPublicAPI.so/MLIRPublicAPI.dll.
# This shared library is built regardless of the overall setting of building
# libMLIR.so (which exports the C++ implementation).
function(add_mlir_public_c_api_library name)
add_mlir_library(${name}
${ARGN}
# NOTE: Generates obj.${name} which is used for shared library building.
OBJECT
EXCLUDE_FROM_LIBMLIR
ADDITIONAL_HEADER_DIRS
${MLIR_MAIN_INCLUDE_DIR}/mlir-c
)
# API libraries compile with hidden visibility and macros that enable
# exporting from the DLL. Only apply to the obj lib, which only affects
# the exports via a shared library.
set_target_properties(obj.${name}
PROPERTIES
CXX_VISIBILITY_PRESET hidden
)
target_compile_definitions(obj.${name}
PRIVATE
-DMLIR_CAPI_BUILDING_LIBRARY=1
)
set_property(GLOBAL APPEND PROPERTY MLIR_PUBLIC_C_API_LIBS ${name})
endfunction()
# Declare the library associated with a dialect.
function(add_mlir_dialect_library name)
set_property(GLOBAL APPEND PROPERTY MLIR_DIALECT_LIBS ${name})
add_mlir_library(${ARGV} DEPENDS mlir-headers)
endfunction(add_mlir_dialect_library)
# Declare the library associated with a conversion.
function(add_mlir_conversion_library name)
set_property(GLOBAL APPEND PROPERTY MLIR_CONVERSION_LIBS ${name})
add_mlir_library(${ARGV} DEPENDS mlir-headers)
endfunction(add_mlir_conversion_library)
# Declare the library associated with a translation.
function(add_mlir_translation_library name)
set_property(GLOBAL APPEND PROPERTY MLIR_TRANSLATION_LIBS ${name})
add_mlir_library(${ARGV} DEPENDS mlir-headers)
endfunction(add_mlir_translation_library)
# Verification tools to aid debugging.
function(mlir_check_link_libraries name)
if(TARGET ${name})
get_target_property(type ${name} TYPE)
if (${type} STREQUAL "INTERFACE_LIBRARY")
get_target_property(libs ${name} INTERFACE_LINK_LIBRARIES)
else()
get_target_property(libs ${name} LINK_LIBRARIES)
endif()
# message("${name} libs are: ${libs}")
set(linking_llvm 0)
foreach(lib ${libs})
if(lib)
if(${lib} MATCHES "^LLVM$")
set(linking_llvm 1)
endif()
if((${lib} MATCHES "^LLVM.+") AND ${linking_llvm})
# This will almost always cause execution problems, since the
# same symbol might be loaded from 2 separate libraries. This
# often comes from referring to an LLVM library target
# explicitly in target_link_libraries()
message("WARNING: ${name} links LLVM and ${lib}!")
endif()
endif()
endforeach()
endif()
endfunction(mlir_check_link_libraries)
function(mlir_check_all_link_libraries name)
mlir_check_link_libraries(${name})
if(TARGET ${name})
get_target_property(libs ${name} LINK_LIBRARIES)
# message("${name} libs are: ${libs}")
foreach(lib ${libs})
mlir_check_link_libraries(${lib})
endforeach()
endif()
endfunction(mlir_check_all_link_libraries)