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[libomptarget] Make libomptarget.devicertl.a built in all cases. 

Make libomptarget.device.a built when using -DLLVM_ENABLE_PROJECTS=openmp
Use add_custom_command.

Reviewed By: jhuber6

Differential Revision: https://reviews.llvm.org/D128130
This commit is contained in:
Ye Luo 2022-06-20 08:29:08 -05:00
parent 013358632e
commit 4d9499e8cc
1 changed files with 38 additions and 13 deletions
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51
openmp/libomptarget/DeviceRTL/CMakeLists.txt
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@ -244,15 +244,8 @@ foreach(mcpu ${amdgpu_mcpus})
compileDeviceRTLLibrary(${mcpu} amdgpu -target amdgcn-amd-amdhsa -DLIBOMPTARGET_BC_TARGET -D__AMDGCN__ -nogpulib)
endforeach()
set(LIBOMPTARGET_LLVM_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}")
if(NOT (CMAKE_CXX_COMPILER_ID MATCHES "[Cc]lang" AND CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL LIBOMPTARGET_LLVM_VERSION))
libomptarget_say("Not building static library, CMake compiler '${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}' is not 'Clang ${LIBOMPTARGET_LLVM_VERSION}'.")
libomptarget_say(" Use the 'LLVM_ENABLE_RUNTIMES=openmp' option instead")
return()
endif()
# Set the flags to build the device runtime from clang.
set(clang_lib_flags -fopenmp -fopenmp-cuda-mode -foffload-lto -fvisibility=hidden -Xopenmp-target=nvptx64-nvidia-cuda --cuda-feature=+ptx61 -mllvm -openmp-opt-disable -nocudalib -nogpulib -nostdinc -DSHARED_SCRATCHPAD_SIZE=512)
set(clang_lib_flags -fopenmp -fopenmp-cuda-mode -foffload-lto -fvisibility=hidden -Xopenmp-target=nvptx64-nvidia-cuda --cuda-feature=+ptx61 -mllvm -openmp-opt-disable -nocudalib -nogpulib -nostdinc -DSHARED_SCRATCHPAD_SIZE=512 -O3)
foreach(arch ${nvptx_sm_list})
set(clang_lib_flags ${clang_lib_flags} --offload-arch=sm_${arch})
endforeach()
@ -261,11 +254,43 @@ foreach(arch ${amdgpu_mcpus})
endforeach()
# Build the static library version of the device runtime.
# first create an object target
add_library(omptarget.devicertl.all_objs OBJECT IMPORTED)
foreach(src ${src_files})
get_filename_component(infile ${src} ABSOLUTE)
get_filename_component(outfile ${src} NAME)
set(outfile "${outfile}.o")
set(outfile_full_path "${CMAKE_CURRENT_BINARY_DIR}/${outfile}")
add_custom_command(OUTPUT ${outfile_full_path}
COMMAND ${CLANG_TOOL} ${clang_lib_flags} --std=c++17 -c
-o ${outfile_full_path}
-I${include_directory}
-I${devicertl_base_directory}/../include
${LIBOMPTARGET_LLVM_INCLUDE_DIRS_DEVICERTL}
${infile}
DEPENDS ${infile} ${include_files}
IMPLICIT_DEPENDS CXX ${infile}
COMMENT "Building device code ${outfile}"
VERBATIM
)
if("${CLANG_TOOL}" STREQUAL "$<TARGET_FILE:clang>")
# Add a file-level dependency to ensure that clang is up-to-date.
# By default, add_custom_command only builds clang if the
# executable is missing.
add_custom_command(OUTPUT ${outfile_full_path}
DEPENDS clang
APPEND
)
endif()
set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${outfile_full_path})
set_property(TARGET omptarget.devicertl.all_objs APPEND PROPERTY IMPORTED_OBJECTS ${outfile_full_path})
endforeach()
# second archive all the object files into a static library
add_library(omptarget.devicertl STATIC)
target_compile_features(omptarget.devicertl PRIVATE cxx_std_17)
target_include_directories(omptarget.devicertl PRIVATE ${include_directory} ${devicertl_base_directory}/../include)
target_compile_options(omptarget.devicertl PRIVATE ${clang_lib_flags})
set_target_properties(omptarget.devicertl PROPERTIES LINKER_LANGUAGE CXX)
target_link_libraries(omptarget.devicertl PRIVATE omptarget.devicertl.all_objs)
install(TARGETS omptarget.devicertl ARCHIVE DESTINATION ${OPENMP_INSTALL_LIBDIR})
add_subdirectory(src)