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98 lines
3.4 KiB
CMake
98 lines
3.4 KiB
CMake
if(WITH_LLVM)
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check_cxx_compiler_flag("-msse -msse2 -mcx16" COMPILER_X86)
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check_cxx_compiler_flag("-march=armv8-a+lse" COMPILER_ARM)
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if(BUILD_LLVM)
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message(STATUS "LLVM will be built from the submodule.")
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set(LLVM_TARGETS_TO_BUILD "AArch64;X86" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
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option(LLVM_BUILD_RUNTIME OFF)
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option(LLVM_BUILD_TOOLS OFF)
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option(LLVM_INCLUDE_BENCHMARKS OFF)
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option(LLVM_INCLUDE_DOCS OFF)
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option(LLVM_INCLUDE_EXAMPLES OFF)
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option(LLVM_INCLUDE_TESTS OFF)
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option(LLVM_INCLUDE_TOOLS OFF)
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option(LLVM_INCLUDE_UTILS OFF)
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option(LLVM_CCACHE_BUILD ON)
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set(LLVM_ENABLE_WARNINGS OFF CACHE BOOL "Enable compiler warnings.")
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if(WIN32)
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set(LLVM_USE_INTEL_JITEVENTS ON)
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endif()
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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set(LLVM_USE_INTEL_JITEVENTS ON)
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set(LLVM_USE_PERF ON)
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endif()
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if (MSVC)
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add_compile_definitions("$<$<COMPILE_LANGUAGE:CXX>:_SILENCE_ALL_CXX17_DEPRECATION_WARNINGS>")
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endif()
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# LLVM needs to be built out-of-tree
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add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/llvm/llvm ${CMAKE_CURRENT_BINARY_DIR}/llvm_build EXCLUDE_FROM_ALL)
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set(LLVM_DIR "${CMAKE_CURRENT_BINARY_DIR}/llvm_build/lib/cmake/llvm/")
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set(STATIC_LINK_LLVM ON CACHE BOOL "Link against LLVM statically. This will get set to ON if you build LLVM from the submodule." FORCE)
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find_package(LLVM 16.0 CONFIG)
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if(NOT LLVM_FOUND)
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message(FATAL_ERROR "Couldn't build LLVM from the submodule. You might need to run `git submodule update --init`")
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endif()
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else()
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message(STATUS "Using prebuilt or system LLVM")
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if (LLVM_DIR AND NOT IS_ABSOLUTE "${LLVM_DIR}")
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# change relative LLVM_DIR to be relative to the source dir
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set(LLVM_DIR ${CMAKE_SOURCE_DIR}/${LLVM_DIR})
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endif()
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find_package(LLVM CONFIG)
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if (NOT LLVM_FOUND)
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message(FATAL_ERROR "Can't find LLVM libraries from the CMAKE_PREFIX_PATH path or LLVM_DIR. \
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Enable BUILD_LLVM option to build LLVM from included as a git submodule.")
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endif()
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if (LLVM_VERSION VERSION_LESS 16)
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message(FATAL_ERROR "Found LLVM version ${LLVM_VERSION}. Required version 16 or above. \
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Enable BUILD_LLVM option to build LLVM from included as a git submodule.")
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endif()
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endif()
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if (STATIC_LINK_LLVM)
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if (NOT DEFINED LLVM_TARGETS_TO_BUILD)
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if(COMPILER_ARM)
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set(LLVM_TARGETS_TO_BUILD "AArch64;X86" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
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else()
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set(LLVM_TARGETS_TO_BUILD "X86" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
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endif()
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endif()
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if((WIN32 AND BUILD_LLVM) OR CMAKE_SYSTEM_NAME STREQUAL "Linux")
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list (APPEND LLVM_ADDITIONAL_LIBS IntelJITEvents)
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endif()
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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list (APPEND LLVM_ADDITIONAL_LIBS PerfJITEvents)
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endif()
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llvm_map_components_to_libnames(LLVM_LIBS
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${LLVM_TARGETS_TO_BUILD}
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${LLVM_ADDITIONAL_LIBS}
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Core
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ExecutionEngine
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MCJIT
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)
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else()
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set(LLVM_LIBS LLVM)
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endif()
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add_library(3rdparty_llvm INTERFACE)
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target_link_libraries(3rdparty_llvm INTERFACE ${LLVM_LIBS})
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target_include_directories(3rdparty_llvm INTERFACE ${LLVM_INCLUDE_DIRS})
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separate_arguments(LLVM_DEFINITIONS_LIST NATIVE_COMMAND ${LLVM_DEFINITIONS})
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target_compile_definitions(3rdparty_llvm INTERFACE ${LLVM_DEFINITIONS_LIST} LLVM_AVAILABLE)
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add_library(3rdparty::llvm ALIAS 3rdparty_llvm)
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else()
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add_library(3rdparty::llvm ALIAS 3rdparty_dummy_lib)
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endif()
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