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463 lines
16 KiB
463 lines
16 KiB
cmake_minimum_required(VERSION 3.13.4)
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# RPATH settings on macOS do not affect INSTALL_NAME.
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if (POLICY CMP0068)
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cmake_policy(SET CMP0068 NEW)
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set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR ON)
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endif()
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# Include file check macros honor CMAKE_REQUIRED_LIBRARIES.
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if(POLICY CMP0075)
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cmake_policy(SET CMP0075 NEW)
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endif()
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# option() honors normal variables.
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if (POLICY CMP0077)
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cmake_policy(SET CMP0077 NEW)
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endif()
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option(LINK_WITH_FIR "Link driver with FIR and LLVM" ON)
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option(FLANG_BUILD_NEW_DRIVER "Build the flang compiler driver" OFF)
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# Flang requires C++17.
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
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set(CMAKE_CXX_EXTENSIONS OFF)
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set(FLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE)
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message(FATAL_ERROR "In-source builds are not allowed. \
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Please create a directory and run cmake from there,\
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passing the path to this source directory as the last argument.\
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This process created the file `CMakeCache.txt' and the directory\
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`CMakeFiles'. Please delete them.")
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endif()
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# Add Flang-centric modules to cmake path.
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
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include(AddFlang)
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option(FLANG_ENABLE_WERROR "Fail and stop building flang if a warning is triggered." OFF)
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# Check for a standalone build and configure as appropriate from
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# there.
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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message("Building Flang as a standalone project.")
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project(Flang)
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set(FLANG_STANDALONE_BUILD ON)
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set(FLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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if (NOT MSVC_IDE)
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set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
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CACHE BOOL "Enable assertions")
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# Assertions follow llvm's configuration.
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mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
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endif()
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# We need a pre-built/installed version of LLVM.
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find_package(LLVM REQUIRED HINTS "${LLVM_CMAKE_PATH}")
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# If the user specifies a relative path to LLVM_DIR, the calls to include
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# LLVM modules fail. Append the absolute path to LLVM_DIR instead.
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get_filename_component(LLVM_DIR_ABSOLUTE ${LLVM_DIR} REALPATH)
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list(APPEND CMAKE_MODULE_PATH ${LLVM_DIR_ABSOLUTE})
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if(FLANG_BUILD_NEW_DRIVER)
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# TODO: Remove when libclangDriver is lifted out of Clang
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list(APPEND CMAKE_MODULE_PATH ${CLANG_DIR})
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find_package(Clang REQUIRED HINTS "${CLANG_DIR}")
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endif()
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# If LLVM links to zlib we need the imported targets so we can too.
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if(LLVM_ENABLE_ZLIB)
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find_package(ZLIB REQUIRED)
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endif()
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option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
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if(CMAKE_COMPILER_IS_GNUCXX)
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set(USE_NO_MAYBE_UNINITIALIZED 1)
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endif()
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include(CMakeParseArguments)
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include(AddLLVM)
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include(HandleLLVMOptions)
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include(VersionFromVCS)
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if(FLANG_BUILD_NEW_DRIVER)
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include(AddClang)
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endif()
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if(LINK_WITH_FIR)
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include(TableGen)
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find_package(MLIR REQUIRED CONFIG)
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# Use SYSTEM for the same reasons as for LLVM includes
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include_directories(SYSTEM ${MLIR_INCLUDE_DIRS})
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# If the user specifies a relative path to MLIR_DIR, the calls to include
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# MLIR modules fail. Append the absolute path to MLIR_DIR instead.
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get_filename_component(MLIR_DIR_ABSOLUTE ${MLIR_DIR} REALPATH)
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list(APPEND CMAKE_MODULE_PATH ${MLIR_DIR_ABSOLUTE})
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include(AddMLIR)
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find_program(MLIR_TABLEGEN_EXE "mlir-tblgen" ${LLVM_TOOLS_BINARY_DIR}
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NO_DEFAULT_PATH)
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endif()
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option(LLVM_INSTALL_TOOLCHAIN_ONLY
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"Only include toolchain files in the 'install' target." OFF)
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option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
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"Set to ON to force using an old, unsupported host toolchain." OFF)
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# Add LLVM include files as if they were SYSTEM because there are complex unused
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# parameter issues that may or may not appear depending on the environments and
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# compilers (ifdefs are involved). This allows warnings from LLVM headers to be
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# ignored while keeping -Wunused-parameter a fatal error inside f18 code base.
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# This may have to be fine-tuned if flang headers are consider part of this
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# LLVM_INCLUDE_DIRS when merging in the monorepo (Warning from flang headers
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# should not be suppressed).
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include_directories(SYSTEM ${LLVM_INCLUDE_DIRS})
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add_definitions(${LLVM_DEFINITIONS})
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# LLVM's cmake configuration files currently sneak in a c++11 flag.
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# We look for it here and remove it from Flang's compile flags to
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# avoid some mixed compilation flangs (e.g. -std=c++11 ... -std=c++17).
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if (DEFINED LLVM_CXX_STD)
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message("LLVM configuration set a C++ standard: ${LLVM_CXX_STD}")
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if (NOT LLVM_CXX_STD EQUAL "c++17")
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message("Flang: Overriding LLVM's 'cxx_std' setting...")
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message(" removing '-std=${LLVM_CXX_STD}'")
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message(" CMAKE_CXX_FLAGS='${CMAKE_CXX_FLAGS}'")
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string(REPLACE " -std=${LLVM_CXX_STD}" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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message(" [NEW] CMAKE_CXX_FLAGS='${CMAKE_CXX_FLAGS}'")
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endif()
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endif()
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link_directories("${LLVM_LIBRARY_DIR}")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY
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${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY
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${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
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set(BACKEND_PACKAGE_STRING "LLVM ${LLVM_PACKAGE_VERSION}")
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set(LLVM_EXTERNAL_LIT "${LLVM_TOOLS_BINARY_DIR}/llvm-lit" CACHE STRING "Command used to spawn lit")
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option(FLANG_INCLUDE_TESTS
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"Generate build targets for the Flang unit tests."
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ON)
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#Handle unittests when out-of-tree
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#LLVM_BUILD_MAIN_SRC_DIR - Path to llvm source when out-of-tree.
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set(FLANG_GTEST_AVAIL 0)
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if (FLANG_INCLUDE_TESTS)
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set(UNITTEST_DIR ${LLVM_BUILD_MAIN_SRC_DIR}/utils/unittest)
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if(EXISTS ${UNITTEST_DIR}/googletest/include/gtest/gtest.h)
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if (NOT TARGET gtest)
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add_library(gtest
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${UNITTEST_DIR}/googletest/src/gtest-all.cc
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${UNITTEST_DIR}/googlemock/src/gmock-all.cc
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)
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target_include_directories(gtest
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PUBLIC
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"${UNITTEST_DIR}/googletest/include"
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"${UNITTEST_DIR}/googlemock/include"
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PRIVATE
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"${UNITTEST_DIR}/googletest"
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"${UNITTEST_DIR}/googlemock"
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)
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find_package(Threads)
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target_link_libraries(gtest PUBLIC Threads::Threads)
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add_library(gtest_main ${UNITTEST_DIR}/UnitTestMain/TestMain.cpp)
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target_link_libraries(gtest_main PUBLIC gtest)
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endif()
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set(FLANG_GTEST_AVAIL 1)
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else()
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message(WARNING
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"Unit-tests will be skipped as LLVM install does not include google-test related headers and libraries.")
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set(FLANG_GTEST_AVAIL 0)
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endif()
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endif()
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if (FLANG_GTEST_AVAIL)
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add_custom_target(check-all DEPENDS check-flang FlangUnitTests)
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else()
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add_custom_target(check-all DEPENDS check-flang )
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endif()
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if (LLVM_BUILD_DOCS)
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add_custom_target(doxygen ALL)
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endif()
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else()
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set(FLANG_STANDALONE_BUILD OFF)
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option(FLANG_INCLUDE_TESTS
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"Generate build targets for the Flang unit tests."
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${LLVM_INCLUDE_TESTS})
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set(FLANG_GTEST_AVAIL 1)
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if(FLANG_STANDALONE_BUILD)
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set(FLANG_BINARY_DIR ${CMAKE_BINARY_DIR}/tools/flang)
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else()
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set(FLANG_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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endif()
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set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
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if (LINK_WITH_FIR)
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set(MLIR_MAIN_SRC_DIR ${LLVM_MAIN_SRC_DIR}/../mlir/include ) # --src-root
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set(MLIR_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/../mlir/include ) # --includedir
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set(MLIR_TABLEGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/tools/mlir/include)
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set(MLIR_TABLEGEN_EXE $<TARGET_FILE:mlir-tblgen>)
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include_directories(SYSTEM ${MLIR_INCLUDE_DIR})
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include_directories(SYSTEM ${MLIR_TABLEGEN_OUTPUT_DIR})
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endif()
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endif()
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if(FLANG_BUILD_NEW_DRIVER)
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# TODO: Remove when libclangDriver is lifted out of Clang
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if(FLANG_STANDALONE_BUILD)
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set(CLANG_INCLUDE_DIR ${CLANG_INCLUDE_DIRS} )
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# No need to specify TableGen output dir as that's embedded in CLANG_DIR
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else()
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set(CLANG_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/../clang/include )
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# Specify TableGen output dir for things like DiagnosticCommonKinds.inc,
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# DiagnosticDriverKinds.inc (required for reporting diagnostics)
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set(CLANG_TABLEGEN_OUTPUT_DIR ${CMAKE_BINARY_DIR}/tools/clang/include)
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include_directories(SYSTEM ${CLANG_TABLEGEN_OUTPUT_DIR})
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endif()
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include_directories(SYSTEM ${CLANG_INCLUDE_DIR})
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endif()
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if(LINK_WITH_FIR)
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# tco tool and FIR lib output directories
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if(FLANG_STANDALONE_BUILD)
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set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/bin)
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set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/lib)
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endif()
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# Always build tco tool
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set(LLVM_BUILD_TOOLS ON)
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set(LLVM_COMMON_COMPONENTS Support)
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message(STATUS "Linking driver with FIR and LLVM, using LLVM components: ${LLVM_COMMON_COMPONENTS}")
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endif()
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# Add Flang-centric modules to cmake path.
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include_directories(BEFORE
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${FLANG_BINARY_DIR}/include
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${FLANG_SOURCE_DIR}/include)
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
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if (NOT DEFAULT_SYSROOT)
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set(DEFAULT_SYSROOT "" CACHE PATH
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"The <path> to use for the system root for all compiler invocations (--sysroot=<path>).")
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endif()
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if (NOT ENABLE_LINKER_BUILD_ID)
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set(ENABLE_LINKER_BUILD_ID OFF CACHE BOOL "pass --build-id to ld")
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endif()
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set(FLANG_DEFAULT_LINKER "" CACHE STRING
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"Default linker to use (linker name or absolute path, empty for platform default)")
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set(FLANG_DEFAULT_RTLIB "" CACHE STRING
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"Default Fortran runtime library to use (\"libFortranRuntime\"), leave empty for platform default.")
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if (NOT(FLANG_DEFAULT_RTLIB STREQUAL ""))
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message(WARNING "Resetting Flang's default runtime library to use platform default.")
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set(FLANG_DEFAULT_RTLIB "" CACHE STRING
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"Default runtime library to use (empty for platform default)" FORCE)
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endif()
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set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
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# Override LLVM versioning for now...
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set(FLANG_VERSION_MAJOR "0")
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set(FLANG_VERSION_MINOR "1")
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set(FLANG_VERSION_PATCHLEVEL "0")
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if (NOT DEFINED FLANG_VERSION_MAJOR)
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set(FLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
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endif()
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if (NOT DEFINED FLANG_VERSION_MINOR)
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set(FLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
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endif()
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if (NOT DEFINED FLANG_VERSION_PATCHLEVEL)
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set(FLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
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endif()
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# Unlike PACKAGE_VERSION, FLANG_VERSION does not include LLVM_VERSION_SUFFIX.
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set(FLANG_VERSION "${FLANG_VERSION_MAJOR}.${FLANG_VERSION_MINOR}.${FLANG_VERSION_PATCHLEVEL}")
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message(STATUS "Flang version: ${FLANG_VERSION}")
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# Flang executable version information
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set(FLANG_EXECUTABLE_VERSION
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"${FLANG_VERSION_MAJOR}" CACHE STRING
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"Major version number to appended to the flang executable name.")
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set(LIBFLANG_LIBRARY_VERSION
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"${FLANG_VERSION_MAJOR}" CACHE STRING
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"Major version number to appended to the libflang library.")
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mark_as_advanced(FLANG_EXECUTABLE_VERSION LIBFLANG_LIBRARY_VERSION)
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set(FLANG_VENDOR ${PACKAGE_VENDOR} CACHE STRING
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"Vendor-specific Flang version information.")
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set(FLANG_VENDOR_UTI "org.llvm.flang" CACHE STRING
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"Vendor-specific uti.")
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if (FLANG_VENDOR)
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add_definitions(-DFLANG_VENDOR="${FLANG_VENDOR} ")
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endif()
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set(FLANG_REPOSITORY_STRING "" CACHE STRING
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"Vendor-specific text for showing the repository the source is taken from.")
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if (FLANG_REPOSITORY_STRING)
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add_definitions(-DFLANG_REPOSITORY_STRING="${FLANG_REPOSITORY_STRING}")
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endif()
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# Configure Flang's Version.inc file.
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configure_file(
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${CMAKE_CURRENT_SOURCE_DIR}/include/flang/Version.inc.in
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${CMAKE_CURRENT_BINARY_DIR}/include/flang/Version.inc)
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# Configure Flang's version info header file.
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configure_file(
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${FLANG_SOURCE_DIR}/include/flang/Config/config.h.cmake
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${FLANG_BINARY_DIR}/include/flang/Config/config.h)
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if (FLANG_ENABLE_WERROR)
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# The following is taken from llvm/cmake/modules/HandleLLVMOptions.cmake
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# Keep this up-to-date with that file
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if( MSVC )
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append("/WX" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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if ( LLVM_COMPILER_IS_GCC_COMPATIBLE )
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append("-Werror" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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append("-Wno-error" CMAKE_REQUIRED_FLAGS)
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endif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
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endif()
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# Builtin check_cxx_compiler_flag doesn't seem to work correctly
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macro(check_compiler_flag flag resultVar)
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unset(${resultVar} CACHE)
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check_cxx_compiler_flag("${flag}" ${resultVar})
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endmacro()
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check_compiler_flag("-Werror -Wno-deprecated-copy" CXX_SUPPORTS_NO_DEPRECATED_COPY_FLAG)
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if (CXX_SUPPORTS_NO_DEPRECATED_COPY_FLAG)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-copy")
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endif()
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check_compiler_flag("-Wstring-conversion" CXX_SUPPORTS_NO_STRING_CONVERSION_FLAG)
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if (CXX_SUPPORTS_NO_STRING_CONVERSION_FLAG)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-string-conversion")
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endif()
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# Add appropriate flags for GCC
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if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
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if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
|
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing -fno-semantic-interposition")
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|
else()
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|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-command-line-argument -Wstring-conversion \
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|
-Wcovered-switch-default")
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|
endif() # Clang.
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check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
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|
if (CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
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|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types")
|
|
endif()
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|
|
# Add to build type flags.
|
|
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUGF18")
|
|
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} -DCHECK=\"(void)\"")
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|
# Building shared libraries is bad for performance with GCC by default
|
|
# due to the need to preserve the right to override external entry points
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|
if (BUILD_SHARED_LIBS AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
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|
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-semantic-interposition")
|
|
endif()
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|
|
endif()
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|
|
list(REMOVE_DUPLICATES CMAKE_CXX_FLAGS)
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|
|
# Determine HOST_LINK_VERSION on Darwin.
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|
set(HOST_LINK_VERSION)
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|
if (APPLE)
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|
set(LD_V_OUTPUT)
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|
execute_process(
|
|
COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"
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|
RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LD_V_OUTPUT)
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|
if (NOT HAD_ERROR)
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|
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
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|
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
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|
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
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|
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
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|
endif()
|
|
else()
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|
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
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|
endif()
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|
endif()
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include(CMakeParseArguments)
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|
include(AddFlang)
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add_subdirectory(include)
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add_subdirectory(lib)
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|
add_subdirectory(cmake/modules)
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|
option(FLANG_BUILD_TOOLS
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|
"Build the Flang tools. If OFF, just generate build targets." ON)
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|
if (FLANG_BUILD_TOOLS)
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|
add_subdirectory(tools)
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|
endif()
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add_subdirectory(runtime)
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if (FLANG_INCLUDE_TESTS)
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|
add_subdirectory(test)
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|
if (FLANG_GTEST_AVAIL)
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add_subdirectory(unittests)
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|
endif ()
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|
endif()
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|
option(FLANG_INCLUDE_DOCS "Generate build targets for the Flang docs."
|
|
${LLVM_INCLUDE_DOCS})
|
|
if (FLANG_INCLUDE_DOCS)
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add_subdirectory(docs)
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|
endif()
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# Custom target to install Flang libraries.
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|
add_custom_target(flang-libraries)
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|
set_target_properties(flang-libraries PROPERTIES FOLDER "Misc")
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|
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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()
|