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rpcs3/3rdparty/llvm.cmake
2019-11-25 23:08:37 +03:00

67 lines
2.2 KiB
CMake

if(WITH_LLVM)
if(BUILD_LLVM_SUBMODULE)
message(STATUS "LLVM will be built from the submodule.")
set(LLVM_TARGETS_TO_BUILD "X86" CACHE INTERNAL "")
option(LLVM_BUILD_RUNTIME OFF)
option(LLVM_BUILD_TOOLS OFF)
option(LLVM_INCLUDE_BENCHMARKS OFF)
option(LLVM_INCLUDE_DOCS OFF)
option(LLVM_INCLUDE_EXAMPLES OFF)
option(LLVM_INCLUDE_TESTS OFF)
option(LLVM_INCLUDE_TOOLS OFF)
option(LLVM_INCLUDE_UTILS OFF)
option(WITH_POLLY OFF)
option(LLVM_ENABLE_CXX1Z TRUE)
set(CXX_FLAGS_OLD ${CMAKE_CXX_FLAGS})
if (MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS")
endif()
# LLVM needs to be built out-of-tree
add_subdirectory(${CMAKE_SOURCE_DIR}/llvm ${CMAKE_CURRENT_BINARY_DIR}/llvm_build EXCLUDE_FROM_ALL)
set(LLVM_DIR "${CMAKE_CURRENT_BINARY_DIR}/llvm_build/lib/cmake/llvm/")
set(CMAKE_CXX_FLAGS ${CXX_FLAGS_OLD})
# now tries to find LLVM again
find_package(LLVM 10.0 CONFIG)
if(NOT LLVM_FOUND)
message(FATAL_ERROR "Couldn't build LLVM from the submodule. You might need to run `git submodule update --init`")
endif()
else()
message(STATUS "Using prebuilt LLVM")
if (LLVM_DIR AND NOT IS_ABSOLUTE "${LLVM_DIR}")
# change relative LLVM_DIR to be relative to the source dir
set(LLVM_DIR ${CMAKE_SOURCE_DIR}/${LLVM_DIR})
endif()
find_package(LLVM 10.0 CONFIG)
if (NOT LLVM_FOUND)
if (LLVM_VERSION AND LLVM_VERSION_MAJOR LESS 9)
message(FATAL_ERROR "Found LLVM version ${LLVM_VERSION}. Required version 9.0. \
Enable BUILD_LLVM_SUBMODULE option to build LLVM from included as a git submodule.")
endif()
message(FATAL_ERROR "Can't find LLVM libraries from the CMAKE_PREFIX_PATH path or LLVM_DIR. \
Enable BUILD_LLVM_SUBMODULE option to build LLVM from included as a git submodule.")
endif()
endif()
set(LLVM_LIBS LLVMMCJIT LLVMX86CodeGen LLVMX86AsmParser)
add_library(3rdparty_llvm INTERFACE)
target_link_libraries(3rdparty_llvm INTERFACE ${LLVM_LIBS})
target_include_directories(3rdparty_llvm INTERFACE ${LLVM_INCLUDE_DIRS})
target_compile_definitions(3rdparty_llvm INTERFACE ${LLVM_DEFINITIONS} -DLLVM_AVAILABLE)
add_library(3rdparty::llvm ALIAS 3rdparty_llvm)
else()
add_library(3rdparty::llvm ALIAS 3rdparty_dummy_lib)
endif()