llvm-capstone/flang/CMakeLists.txt
Tim Keith 8e1c09ee5f [flang] Build intrinsic .mod files in include/flang
The build was putting .mod files for intrinsic modules in
tools/flang/include/flang but the install puts them in include/flang,
as does the out-of-tree build. This confused things for the driver.
This change makes the build consistent with the install and simplifies
the flang script accordingly.

Also, clean up the cmake commands for building the .mod files.

Differential Revision: https://reviews.llvm.org/D98522
2021-03-15 08:03:02 -07:00

437 lines
15 KiB
CMake

cmake_minimum_required(VERSION 3.13.4)
set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR ON)
option(FLANG_BUILD_NEW_DRIVER "Build the flang compiler driver" OFF)
# Flang requires C++17.
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
set(CMAKE_CXX_EXTENSIONS OFF)
set(FLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE)
message(FATAL_ERROR "In-source builds are not allowed. \
Please create a directory and run cmake from there,\
passing the path to this source directory as the last argument.\
This process created the file `CMakeCache.txt' and the directory\
`CMakeFiles'. Please delete them.")
endif()
# Add Flang-centric modules to cmake path.
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
include(AddFlang)
option(FLANG_ENABLE_WERROR "Fail and stop building flang if a warning is triggered." OFF)
# Check for a standalone build and configure as appropriate from
# there.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
message("Building Flang as a standalone project.")
project(Flang)
set(FLANG_STANDALONE_BUILD ON)
set(FLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
if (NOT MSVC_IDE)
set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
CACHE BOOL "Enable assertions")
# Assertions follow llvm's configuration.
mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
endif()
# We need a pre-built/installed version of LLVM.
find_package(LLVM REQUIRED HINTS "${LLVM_CMAKE_PATH}")
# If the user specifies a relative path to LLVM_DIR, the calls to include
# LLVM modules fail. Append the absolute path to LLVM_DIR instead.
get_filename_component(LLVM_DIR_ABSOLUTE ${LLVM_DIR} REALPATH)
list(APPEND CMAKE_MODULE_PATH ${LLVM_DIR_ABSOLUTE})
if(FLANG_BUILD_NEW_DRIVER)
# TODO: Remove when libclangDriver is lifted out of Clang
list(APPEND CMAKE_MODULE_PATH ${CLANG_DIR})
find_package(Clang REQUIRED HINTS "${CLANG_DIR}")
endif()
# If LLVM links to zlib we need the imported targets so we can too.
if(LLVM_ENABLE_ZLIB)
find_package(ZLIB REQUIRED)
endif()
option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
if(CMAKE_COMPILER_IS_GNUCXX)
set(USE_NO_MAYBE_UNINITIALIZED 1)
endif()
include(CMakeParseArguments)
include(AddLLVM)
include(HandleLLVMOptions)
include(VersionFromVCS)
if(FLANG_BUILD_NEW_DRIVER)
include(AddClang)
endif()
include(TableGen)
find_package(MLIR REQUIRED CONFIG)
# Use SYSTEM for the same reasons as for LLVM includes
include_directories(SYSTEM ${MLIR_INCLUDE_DIRS})
# If the user specifies a relative path to MLIR_DIR, the calls to include
# MLIR modules fail. Append the absolute path to MLIR_DIR instead.
get_filename_component(MLIR_DIR_ABSOLUTE ${MLIR_DIR} REALPATH)
list(APPEND CMAKE_MODULE_PATH ${MLIR_DIR_ABSOLUTE})
include(AddMLIR)
find_program(MLIR_TABLEGEN_EXE "mlir-tblgen" ${LLVM_TOOLS_BINARY_DIR}
NO_DEFAULT_PATH)
option(LLVM_INSTALL_TOOLCHAIN_ONLY
"Only include toolchain files in the 'install' target." OFF)
option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
"Set to ON to force using an old, unsupported host toolchain." OFF)
# Add LLVM include files as if they were SYSTEM because there are complex unused
# parameter issues that may or may not appear depending on the environments and
# compilers (ifdefs are involved). This allows warnings from LLVM headers to be
# ignored while keeping -Wunused-parameter a fatal error inside f18 code base.
# This may have to be fine-tuned if flang headers are consider part of this
# LLVM_INCLUDE_DIRS when merging in the monorepo (Warning from flang headers
# should not be suppressed).
include_directories(SYSTEM ${LLVM_INCLUDE_DIRS})
add_definitions(${LLVM_DEFINITIONS})
# LLVM's cmake configuration files currently sneak in a c++11 flag.
# We look for it here and remove it from Flang's compile flags to
# avoid some mixed compilation flangs (e.g. -std=c++11 ... -std=c++17).
if (DEFINED LLVM_CXX_STD)
message("LLVM configuration set a C++ standard: ${LLVM_CXX_STD}")
if (NOT LLVM_CXX_STD EQUAL "c++17")
message("Flang: Overriding LLVM's 'cxx_std' setting...")
message(" removing '-std=${LLVM_CXX_STD}'")
message(" CMAKE_CXX_FLAGS='${CMAKE_CXX_FLAGS}'")
string(REPLACE " -std=${LLVM_CXX_STD}" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
message(" [NEW] CMAKE_CXX_FLAGS='${CMAKE_CXX_FLAGS}'")
endif()
endif()
link_directories("${LLVM_LIBRARY_DIR}")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY
${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY
${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
set(LLVM_EXTERNAL_LIT "${LLVM_TOOLS_BINARY_DIR}/llvm-lit" CACHE STRING "Command used to spawn lit")
option(FLANG_INCLUDE_TESTS
"Generate build targets for the Flang unit tests."
ON)
#Handle unittests when out-of-tree
#LLVM_BUILD_MAIN_SRC_DIR - Path to llvm source when out-of-tree.
set(FLANG_GTEST_AVAIL 0)
if (FLANG_INCLUDE_TESTS)
set(UNITTEST_DIR ${LLVM_BUILD_MAIN_SRC_DIR}/utils/unittest)
if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h)
if (NOT TARGET gtest)
add_library(gtest
${UNITTEST_DIR}/googletest/src/gtest-all.cc
${UNITTEST_DIR}/googlemock/src/gmock-all.cc
)
target_include_directories(gtest
PUBLIC
"${UNITTEST_DIR}/googletest/include"
"${UNITTEST_DIR}/googlemock/include"
PRIVATE
"${UNITTEST_DIR}/googletest"
"${UNITTEST_DIR}/googlemock"
)
find_package(Threads)
target_link_libraries(gtest PUBLIC Threads::Threads)
add_library(gtest_main ${UNITTEST_DIR}/UnitTestMain/TestMain.cpp)
target_link_libraries(gtest_main PUBLIC gtest)
endif()
set(FLANG_GTEST_AVAIL 1)
else()
message(WARNING
"Unit-tests will be skipped as LLVM install does not include google-test related headers and libraries.")
set(FLANG_GTEST_AVAIL 0)
endif()
endif()
if (FLANG_GTEST_AVAIL)
add_custom_target(check-all DEPENDS check-flang FlangUnitTests)
else()
add_custom_target(check-all DEPENDS check-flang )
endif()
if (LLVM_BUILD_DOCS)
add_custom_target(doxygen ALL)
endif()
else()
set(FLANG_STANDALONE_BUILD OFF)
option(FLANG_INCLUDE_TESTS
"Generate build targets for the Flang unit tests."
${LLVM_INCLUDE_TESTS})
set(FLANG_GTEST_AVAIL 1)
if(FLANG_STANDALONE_BUILD)
set(FLANG_BINARY_DIR ${CMAKE_BINARY_DIR}/tools/flang)
else()
set(FLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
endif()
set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
set(MLIR_MAIN_SRC_DIR ${LLVM_MAIN_SRC_DIR}/../mlir/include ) # --src-root
set(MLIR_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/../mlir/include ) # --includedir
set(MLIR_TABLEGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/tools/mlir/include)
set(MLIR_TABLEGEN_EXE $<TARGET_FILE:mlir-tblgen>)
include_directories(SYSTEM ${MLIR_INCLUDE_DIR})
include_directories(SYSTEM ${MLIR_TABLEGEN_OUTPUT_DIR})
endif()
set(FLANG_INTRINSIC_MODULES_DIR ${CMAKE_BINARY_DIR}/include/flang)
if(FLANG_BUILD_NEW_DRIVER)
# TODO: Remove when libclangDriver is lifted out of Clang
if(FLANG_STANDALONE_BUILD)
set(CLANG_INCLUDE_DIR ${CLANG_INCLUDE_DIRS} )
# No need to specify TableGen output dir as that's embedded in CLANG_DIR
else()
set(CLANG_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/../clang/include )
# Specify TableGen output dir for things like DiagnosticCommonKinds.inc,
# DiagnosticDriverKinds.inc (required for reporting diagnostics)
set(CLANG_TABLEGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/tools/clang/include)
include_directories(SYSTEM ${CLANG_TABLEGEN_OUTPUT_DIR})
endif()
include_directories(SYSTEM ${CLANG_INCLUDE_DIR})
endif()
# tco tool and FIR lib output directories
if(FLANG_STANDALONE_BUILD)
set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/bin)
set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/lib)
endif()
# Always build tco tool
set(LLVM_BUILD_TOOLS ON)
# Add Flang-centric modules to cmake path.
include_directories(BEFORE
${FLANG_BINARY_DIR}/include
${FLANG_SOURCE_DIR}/include)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
if (NOT DEFAULT_SYSROOT)
set(DEFAULT_SYSROOT "" CACHE PATH
"The <path> to use for the system root for all compiler invocations (--sysroot=<path>).")
endif()
if (NOT ENABLE_LINKER_BUILD_ID)
set(ENABLE_LINKER_BUILD_ID OFF CACHE BOOL "pass --build-id to ld")
endif()
set(FLANG_DEFAULT_LINKER "" CACHE STRING
"Default linker to use (linker name or absolute path, empty for platform default)")
set(FLANG_DEFAULT_RTLIB "" CACHE STRING
"Default Fortran runtime library to use (\"libFortranRuntime\"), leave empty for platform default.")
if (NOT(FLANG_DEFAULT_RTLIB STREQUAL ""))
message(WARNING "Resetting Flang's default runtime library to use platform default.")
set(FLANG_DEFAULT_RTLIB "" CACHE STRING
"Default runtime library to use (empty for platform default)" FORCE)
endif()
set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
if (NOT DEFINED FLANG_VERSION_MAJOR)
set(FLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
endif()
if (NOT DEFINED FLANG_VERSION_MINOR)
set(FLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
endif()
if (NOT DEFINED FLANG_VERSION_PATCHLEVEL)
set(FLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
endif()
# Unlike PACKAGE_VERSION, FLANG_VERSION does not include LLVM_VERSION_SUFFIX.
set(FLANG_VERSION "${FLANG_VERSION_MAJOR}.${FLANG_VERSION_MINOR}.${FLANG_VERSION_PATCHLEVEL}")
message(STATUS "Flang version: ${FLANG_VERSION}")
# Flang executable version information
set(FLANG_EXECUTABLE_VERSION
"${FLANG_VERSION_MAJOR}" CACHE STRING
"Major version number to appended to the flang executable name.")
set(LIBFLANG_LIBRARY_VERSION
"${FLANG_VERSION_MAJOR}" CACHE STRING
"Major version number to appended to the libflang library.")
mark_as_advanced(FLANG_EXECUTABLE_VERSION LIBFLANG_LIBRARY_VERSION)
set(FLANG_VENDOR ${PACKAGE_VENDOR} CACHE STRING
"Vendor-specific Flang version information.")
set(FLANG_VENDOR_UTI "org.llvm.flang" CACHE STRING
"Vendor-specific uti.")
if (FLANG_VENDOR)
add_definitions(-DFLANG_VENDOR="${FLANG_VENDOR} ")
endif()
set(FLANG_REPOSITORY_STRING "" CACHE STRING
"Vendor-specific text for showing the repository the source is taken from.")
if (FLANG_REPOSITORY_STRING)
add_definitions(-DFLANG_REPOSITORY_STRING="${FLANG_REPOSITORY_STRING}")
endif()
# Configure Flang's Version.inc file.
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/include/flang/Version.inc.in
${CMAKE_CURRENT_BINARY_DIR}/include/flang/Version.inc)
# Configure Flang's version info header file.
configure_file(
${FLANG_SOURCE_DIR}/include/flang/Config/config.h.cmake
${FLANG_BINARY_DIR}/include/flang/Config/config.h)
if (FLANG_ENABLE_WERROR)
# The following is taken from llvm/cmake/modules/HandleLLVMOptions.cmake
# Keep this up-to-date with that file
if( MSVC )
append("/WX" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
if ( LLVM_COMPILER_IS_GCC_COMPATIBLE )
append("-Werror" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
append("-Wno-error" CMAKE_REQUIRED_FLAGS)
endif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
endif()
# Builtin check_cxx_compiler_flag doesn't seem to work correctly
macro(check_compiler_flag flag resultVar)
unset(${resultVar} CACHE)
check_cxx_compiler_flag("${flag}" ${resultVar})
endmacro()
check_compiler_flag("-Werror -Wno-deprecated-copy" CXX_SUPPORTS_NO_DEPRECATED_COPY_FLAG)
if (CXX_SUPPORTS_NO_DEPRECATED_COPY_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-copy")
endif()
check_compiler_flag("-Wstring-conversion" CXX_SUPPORTS_NO_STRING_CONVERSION_FLAG)
if (CXX_SUPPORTS_NO_STRING_CONVERSION_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-string-conversion")
endif()
# Add appropriate flags for GCC
if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing -fno-semantic-interposition")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-command-line-argument -Wstring-conversion \
-Wcovered-switch-default")
endif() # Clang.
check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
if (CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types")
endif()
# Add to build type flags.
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUGF18")
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -DCHECK=\"(void)\"")
# Building shared libraries is bad for performance with GCC by default
# due to the need to preserve the right to override external entry points
if (BUILD_SHARED_LIBS AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-semantic-interposition")
endif()
endif()
list(REMOVE_DUPLICATES CMAKE_CXX_FLAGS)
# Determine HOST_LINK_VERSION on Darwin.
set(HOST_LINK_VERSION)
if (APPLE)
set(LD_V_OUTPUT)
execute_process(
COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE LD_V_OUTPUT)
if (NOT HAD_ERROR)
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
endif()
else()
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
endif()
endif()
include(CMakeParseArguments)
include(AddFlang)
add_subdirectory(include)
add_subdirectory(lib)
add_subdirectory(cmake/modules)
option(FLANG_BUILD_TOOLS
"Build the Flang tools. If OFF, just generate build targets." ON)
if (FLANG_BUILD_TOOLS)
add_subdirectory(tools)
endif()
add_subdirectory(runtime)
if (FLANG_INCLUDE_TESTS)
add_subdirectory(test)
if (FLANG_GTEST_AVAIL)
add_subdirectory(unittests)
endif ()
endif()
option(FLANG_INCLUDE_DOCS "Generate build targets for the Flang docs."
${LLVM_INCLUDE_DOCS})
if (FLANG_INCLUDE_DOCS)
add_subdirectory(docs)
endif()
# Custom target to install Flang libraries.
add_custom_target(flang-libraries)
set_target_properties(flang-libraries PROPERTIES FOLDER "Misc")
if (NOT LLVM_ENABLE_IDE)
add_llvm_install_targets(install-flang-libraries
DEPENDS flang-libraries
COMPONENT flang-libraries)
endif()
get_property(FLANG_LIBS GLOBAL PROPERTY FLANG_LIBS)
if (FLANG_LIBS)
list(REMOVE_DUPLICATES FLANG_LIBS)
foreach(lib ${FLANG_LIBS})
add_dependencies(flang-libraries ${lib})
if (NOT LLVM_ENABLE_IDE)
add_dependencies(install-flang-libraries install-${lib})
endif()
endforeach()
endif()
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
install(DIRECTORY include/flang
DESTINATION include
COMPONENT flang-headers
FILES_MATCHING
PATTERN "*.def"
PATTERN "*.h"
PATTERN "*.inc"
PATTERN "*.td"
PATTERN "config.h" EXCLUDE
PATTERN ".git" EXCLUDE
PATTERN "CMakeFiles" EXCLUDE)
endif()