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##===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
##===----------------------------------------------------------------------===##
#
# Build the AMDGCN Device RTL if the ROCM tools are available
#
##===----------------------------------------------------------------------===##
find_package(LLVM QUIET CONFIG
PATHS
$ENV{AOMP}
$ENV{HOME}/rocm/aomp
/opt/rocm/aomp
/usr/lib/rocm/aomp
${LIBOMPTARGET_NVPTX_CUDA_COMPILER_DIR}
${LIBOMPTARGET_NVPTX_CUDA_LINKER_DIR}
${CMAKE_CXX_COMPILER_DIR}
NO_DEFAULT_PATH)
if (LLVM_DIR)
libomptarget_say("Found LLVM ${LLVM_PACKAGE_VERSION}. Configure: ${LLVM_DIR}/LLVMConfig.cmake")
else()
libomptarget_say("Not building AMDGCN device RTL: AOMP not found")
return()
endif()
set(AOMP_INSTALL_PREFIX ${LLVM_INSTALL_PREFIX})
if (AOMP_INSTALL_PREFIX)
set(AOMP_BINDIR ${AOMP_INSTALL_PREFIX}/bin)
else()
set(AOMP_BINDIR ${LLVM_BUILD_BINARY_DIR}/bin)
endif()
libomptarget_say("Building AMDGCN device RTL. LLVM_COMPILER_PATH=${AOMP_BINDIR}")
project(omptarget-amdgcn)
add_custom_target(omptarget-amdgcn ALL)
#optimization level
set(optimization_level 2)
# Activate RTL message dumps if requested by the user.
if(LIBOMPTARGET_NVPTX_DEBUG)
set(CUDA_DEBUG -DOMPTARGET_NVPTX_DEBUG=-1)
endif()
get_filename_component(devicertl_base_directory
${CMAKE_CURRENT_SOURCE_DIR}
DIRECTORY)
set(cuda_sources
${CMAKE_CURRENT_SOURCE_DIR}/src/amdgcn_smid.hip
${CMAKE_CURRENT_SOURCE_DIR}/src/amdgcn_locks.hip
${CMAKE_CURRENT_SOURCE_DIR}/src/target_impl.hip
${devicertl_base_directory}/common/src/cancel.cu
${devicertl_base_directory}/common/src/critical.cu
${devicertl_base_directory}/common/src/data_sharing.cu
${devicertl_base_directory}/common/src/libcall.cu
${devicertl_base_directory}/common/src/loop.cu
${devicertl_base_directory}/common/src/omp_data.cu
${devicertl_base_directory}/common/src/omptarget.cu
${devicertl_base_directory}/common/src/parallel.cu
${devicertl_base_directory}/common/src/reduction.cu
${devicertl_base_directory}/common/src/support.cu
${devicertl_base_directory}/common/src/sync.cu
${devicertl_base_directory}/common/src/task.cu)
set(h_files
${CMAKE_CURRENT_SOURCE_DIR}/src/amdgcn_interface.h
${CMAKE_CURRENT_SOURCE_DIR}/src/hip_atomics.h
${CMAKE_CURRENT_SOURCE_DIR}/src/target_impl.h
${devicertl_base_directory}/common/debug.h
${devicertl_base_directory}/common/device_environment.h
${devicertl_base_directory}/common/omptarget.h
${devicertl_base_directory}/common/omptargeti.h
${devicertl_base_directory}/common/state-queue.h
${devicertl_base_directory}/common/target_atomic.h
${devicertl_base_directory}/common/state-queuei.h
${devicertl_base_directory}/common/support.h)
# for both in-tree and out-of-tree build
if (NOT CMAKE_ARCHIVE_OUTPUT_DIRECTORY)
set(OUTPUTDIR ${CMAKE_CURRENT_BINARY_DIR})
else()
set(OUTPUTDIR ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
endif()
# create libraries
set(mcpus gfx700 gfx701 gfx801 gfx803 gfx900)
if (DEFINED LIBOMPTARGET_AMDGCN_GFXLIST)
set(mcpus ${LIBOMPTARGET_AMDGCN_GFXLIST})
endif()
macro(add_cuda_bc_library)
set(cu_cmd ${AOMP_BINDIR}/clang++
-std=c++14
-fcuda-rdc
-fvisibility=default
--cuda-device-only
-Wno-unused-value
-x hip
-O${optimization_level}
--cuda-gpu-arch=${mcpu}
${CUDA_DEBUG}
-I${CMAKE_CURRENT_SOURCE_DIR}/src
-I${devicertl_base_directory})
set(bc1_files)
foreach(file ${ARGN})
get_filename_component(fname ${file} NAME_WE)
set(bc1_filename ${fname}.${mcpu}.bc)
add_custom_command(
OUTPUT ${bc1_filename}
COMMAND ${cu_cmd} ${file} -o ${bc1_filename}
DEPENDS ${file} ${h_files})
list(APPEND bc1_files ${bc1_filename})
endforeach()
add_custom_command(
OUTPUT linkout.cuda.${mcpu}.bc
COMMAND ${AOMP_BINDIR}/llvm-link ${bc1_files} -o linkout.cuda.${mcpu}.bc
DEPENDS ${bc1_files})
list(APPEND bc_files linkout.cuda.${mcpu}.bc)
endmacro()
set(libname "omptarget-amdgcn")
foreach(mcpu ${mcpus})
set(bc_files)
add_cuda_bc_library(${cuda_sources})
set(bc_libname lib${libname}-${mcpu}.bc)
add_custom_command(
OUTPUT ${bc_libname}
COMMAND ${AOMP_BINDIR}/llvm-link ${bc_files} | ${AOMP_BINDIR}/opt --always-inline -o ${OUTPUTDIR}/${bc_libname}
DEPENDS ${bc_files})
add_custom_target(lib${libname}-${mcpu} ALL DEPENDS ${bc_libname})
install(FILES ${OUTPUTDIR}/${bc_libname}
DESTINATION "${OPENMP_INSTALL_LIBDIR}/libdevice"
)
endforeach()
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