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if( ${LLVM_TABLEGEN} STREQUAL "tblgen" )
# TODO: remove this when autobuilding the native tblgen works.
message(FATAL_ERROR
"Set LLVM_TABLEGEN to the full route to a native tblgen executable")
message(STATUS "Configuring native TableGen...")
set(CX_NATIVE_TG_DIR "${CMAKE_BINARY_DIR}/native")
execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR}
RESULT_VARIABLE CX_NATIVE_TG_RV)
if( NOT CX_NATIVE_TG_RV EQUAL 0 )
message(FATAL_ERROR "Failed to create directory ${CX_NATIVE_TG_DIR}")
endif()
execute_process(
COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
RESULT_VARIABLE CX_NATIVE_TG_RV
ERROR_VARIABLE CX_NATIVE_TG_ERROR)
if( NOT CX_NATIVE_TG_RV EQUAL 0 )
message(FATAL_ERROR
"Error while configuring native TableGen:\n${CX_NATIVE_TG_ERROR}")
endif()
message(STATUS "Native TableGen configured.")
set(LLVM_TABLEGEN "${CX_NATIVE_TG_DIR}/bin/tblgen")
add_custom_command(OUTPUT ${LLVM_TABLEGEN}
COMMAND ${CMAKE_BUILD_TOOL} -C ${CX_NATIVE_TG_DIR}/utils/TableGen
COMMENT "Building native TableGen...")
add_custom_target(NativeTableGen DEPENDS ${LLVM_TABLEGEN})
add_dependencies(tblgen NativeTableGen)
# TODO: We should clean the native build when the `clean target
# is invoked. This doesn't work.
# add_custom_command(TARGET clean
# COMMAND ${CMAKE_BUILD_TOOL} -C ${CX_NATIVE_TG_DIR}/utils/TableGen clean
# POST_BUILD
# COMMENT "Cleaning native TableGen...")
endif()
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