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456 lines
16 KiB
CMake
456 lines
16 KiB
CMake
#.rst:
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# FindComputeCpp
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#---------------
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#
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# Copyright 2016-2018 Codeplay Software Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use these files except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#########################
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# FindComputeCpp.cmake
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#########################
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#
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# Tools for finding and building with ComputeCpp.
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#
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# User must define ComputeCpp_DIR pointing to the ComputeCpp
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# installation.
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#
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# Latest version of this file can be found at:
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# https://github.com/codeplaysoftware/computecpp-sdk
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cmake_minimum_required(VERSION 3.4.3)
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include(FindPackageHandleStandardArgs)
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include(ComputeCppIRMap)
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set(COMPUTECPP_USER_FLAGS "" CACHE STRING "User flags for compute++")
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separate_arguments(COMPUTECPP_USER_FLAGS)
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mark_as_advanced(COMPUTECPP_USER_FLAGS)
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set(COMPUTECPP_BITCODE "spir64" CACHE STRING
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"Bitcode type to use as SYCL target in compute++")
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mark_as_advanced(COMPUTECPP_BITCODE)
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include(CMakeFindDependencyMacro)
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find_dependency(OpenCL REQUIRED)
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# Find ComputeCpp package
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if(DEFINED ComputeCpp_DIR)
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set(computecpp_find_hint ${ComputeCpp_DIR})
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elseif(DEFINED ENV{COMPUTECPP_DIR})
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set(computecpp_find_hint $ENV{COMPUTECPP_DIR})
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endif()
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# Used for running executables on the host
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set(computecpp_host_find_hint ${computecpp_find_hint})
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if(CMAKE_CROSSCOMPILING)
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# ComputeCpp_HOST_DIR is used to find executables that are run on the host
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if(DEFINED ComputeCpp_HOST_DIR)
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set(computecpp_host_find_hint ${ComputeCpp_HOST_DIR})
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elseif(DEFINED ENV{COMPUTECPP_HOST_DIR})
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set(computecpp_host_find_hint $ENV{COMPUTECPP_HOST_DIR})
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endif()
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endif()
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find_program(ComputeCpp_DEVICE_COMPILER_EXECUTABLE compute++
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HINTS ${computecpp_host_find_hint}
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PATH_SUFFIXES bin
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NO_SYSTEM_ENVIRONMENT_PATH)
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find_program(ComputeCpp_INFO_EXECUTABLE computecpp_info
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HINTS ${computecpp_host_find_hint}
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PATH_SUFFIXES bin
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NO_SYSTEM_ENVIRONMENT_PATH)
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find_library(COMPUTECPP_RUNTIME_LIBRARY
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NAMES ComputeCpp ComputeCpp_vs2015
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HINTS ${computecpp_find_hint}
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PATH_SUFFIXES lib
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DOC "ComputeCpp Runtime Library")
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find_library(COMPUTECPP_RUNTIME_LIBRARY_DEBUG
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NAMES ComputeCpp_d ComputeCpp ComputeCpp_vs2015_d
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HINTS ${computecpp_find_hint}
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PATH_SUFFIXES lib
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DOC "ComputeCpp Debug Runtime Library")
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find_path(ComputeCpp_INCLUDE_DIRS
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NAMES "CL/sycl.hpp"
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HINTS ${computecpp_find_hint}/include
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DOC "The ComputeCpp include directory")
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get_filename_component(ComputeCpp_INCLUDE_DIRS ${ComputeCpp_INCLUDE_DIRS} ABSOLUTE)
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get_filename_component(computecpp_canonical_root_dir "${ComputeCpp_INCLUDE_DIRS}/.." ABSOLUTE)
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set(ComputeCpp_ROOT_DIR "${computecpp_canonical_root_dir}" CACHE PATH
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"The root of the ComputeCpp install")
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if(NOT ComputeCpp_INFO_EXECUTABLE)
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message(WARNING "Can't find computecpp_info - check ComputeCpp_DIR")
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else()
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execute_process(COMMAND ${ComputeCpp_INFO_EXECUTABLE} "--dump-version"
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OUTPUT_VARIABLE ComputeCpp_VERSION
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RESULT_VARIABLE ComputeCpp_INFO_EXECUTABLE_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(NOT ComputeCpp_INFO_EXECUTABLE_RESULT EQUAL "0")
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message(WARNING "Package version - Error obtaining version!")
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endif()
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execute_process(COMMAND ${ComputeCpp_INFO_EXECUTABLE} "--dump-is-supported"
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OUTPUT_VARIABLE COMPUTECPP_PLATFORM_IS_SUPPORTED
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RESULT_VARIABLE ComputeCpp_INFO_EXECUTABLE_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(NOT ComputeCpp_INFO_EXECUTABLE_RESULT EQUAL "0")
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message(WARNING "platform - Error checking platform support!")
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else()
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mark_as_advanced(COMPUTECPP_PLATFORM_IS_SUPPORTED)
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if (COMPUTECPP_PLATFORM_IS_SUPPORTED)
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message(STATUS "platform - your system can support ComputeCpp")
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else()
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message(STATUS "platform - your system is not officially supported")
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endif()
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endif()
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endif()
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find_package_handle_standard_args(ComputeCpp
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REQUIRED_VARS ComputeCpp_ROOT_DIR
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ComputeCpp_DEVICE_COMPILER_EXECUTABLE
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ComputeCpp_INFO_EXECUTABLE
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COMPUTECPP_RUNTIME_LIBRARY
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COMPUTECPP_RUNTIME_LIBRARY_DEBUG
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ComputeCpp_INCLUDE_DIRS
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VERSION_VAR ComputeCpp_VERSION)
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mark_as_advanced(ComputeCpp_ROOT_DIR
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ComputeCpp_DEVICE_COMPILER_EXECUTABLE
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ComputeCpp_INFO_EXECUTABLE
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COMPUTECPP_RUNTIME_LIBRARY
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COMPUTECPP_RUNTIME_LIBRARY_DEBUG
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ComputeCpp_INCLUDE_DIRS
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ComputeCpp_VERSION)
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if(NOT ComputeCpp_FOUND)
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return()
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endif()
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS -O2 -mllvm -inline-threshold=1000 -intelspirmetadata)
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mark_as_advanced(COMPUTECPP_DEVICE_COMPILER_FLAGS)
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if(CMAKE_CROSSCOMPILING)
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if(NOT COMPUTECPP_DONT_USE_TOOLCHAIN)
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS --gcc-toolchain=${COMPUTECPP_TOOLCHAIN_DIR})
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endif()
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS --sysroot=${COMPUTECPP_SYSROOT_DIR})
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS -target ${COMPUTECPP_TARGET_TRIPLE})
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endif()
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS -sycl-target ${COMPUTECPP_BITCODE})
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message(STATUS "compute++ flags - ${COMPUTECPP_DEVICE_COMPILER_FLAGS}")
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include(ComputeCppCompilerChecks)
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if(NOT TARGET OpenCL::OpenCL)
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add_library(OpenCL::OpenCL UNKNOWN IMPORTED)
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set_target_properties(OpenCL::OpenCL PROPERTIES
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IMPORTED_LOCATION "${OpenCL_LIBRARIES}"
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INTERFACE_INCLUDE_DIRECTORIES "${OpenCL_INCLUDE_DIRS}"
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)
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endif()
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if(NOT TARGET ComputeCpp::ComputeCpp)
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add_library(ComputeCpp::ComputeCpp UNKNOWN IMPORTED)
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set_target_properties(ComputeCpp::ComputeCpp PROPERTIES
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IMPORTED_LOCATION_DEBUG "${COMPUTECPP_RUNTIME_LIBRARY_DEBUG}"
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IMPORTED_LOCATION_RELWITHDEBINFO "${COMPUTECPP_RUNTIME_LIBRARY}"
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IMPORTED_LOCATION "${COMPUTECPP_RUNTIME_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${ComputeCpp_INCLUDE_DIRS}"
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INTERFACE_LINK_LIBRARIES "OpenCL::OpenCL"
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)
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endif()
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# This property allows targets to specify that their sources should be
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# compiled with the integration header included after the user's
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# sources, not before (e.g. when an enum is used in a kernel name, this
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# is not technically valid SYCL code but can work with ComputeCpp)
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define_property(
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TARGET PROPERTY COMPUTECPP_INCLUDE_AFTER
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BRIEF_DOCS "Include integration header after user source"
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FULL_DOCS "Changes compiler arguments such that the source file is
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actually the integration header, and the .cpp file is included on
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the command line so that it is seen by the compiler first. Enables
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non-standards-conformant SYCL code to compile with ComputeCpp."
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)
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define_property(
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TARGET PROPERTY INTERFACE_COMPUTECPP_FLAGS
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BRIEF_DOCS "Interface compile flags to provide compute++"
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FULL_DOCS "Set additional compile flags to pass to compute++ when compiling
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any target which links to this one."
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)
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define_property(
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SOURCE PROPERTY COMPUTECPP_SOURCE_FLAGS
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BRIEF_DOCS "Source file compile flags for compute++"
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FULL_DOCS "Set additional compile flags for compiling the SYCL integration
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header for the given source file."
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)
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####################
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# __build_ir
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####################
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#
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# Adds a custom target for running compute++ and adding a dependency for the
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# resulting integration header and kernel binary.
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#
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# TARGET : Name of the target.
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# SOURCE : Source file to be compiled.
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# COUNTER : Counter included in name of custom target. Different counter
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# values prevent duplicated names of custom target when source files with
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# the same name, but located in different directories, are used for the
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# same target.
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#
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function(__build_ir)
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set(options)
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set(one_value_args
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TARGET
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SOURCE
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COUNTER
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)
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set(multi_value_args)
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cmake_parse_arguments(SDK_BUILD_IR
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"${options}"
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"${one_value_args}"
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"${multi_value_args}"
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${ARGN}
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)
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get_filename_component(sourceFileName ${SDK_BUILD_IR_SOURCE} NAME)
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# Set the path to the integration header.
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# The .sycl filename must depend on the target so that different targets
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# using the same source file will be generated with a different rule.
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set(baseSyclName ${CMAKE_CURRENT_BINARY_DIR}/${SDK_BUILD_IR_TARGET}_${sourceFileName})
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set(outputSyclFile ${baseSyclName}.sycl)
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set(outputDeviceFile ${baseSyclName}.${IR_MAP_${COMPUTECPP_BITCODE}})
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set(depFileName ${baseSyclName}.sycl.d)
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set(include_directories "$<TARGET_PROPERTY:${SDK_BUILD_IR_TARGET},INCLUDE_DIRECTORIES>")
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set(compile_definitions "$<TARGET_PROPERTY:${SDK_BUILD_IR_TARGET},COMPILE_DEFINITIONS>")
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set(generated_include_directories
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$<$<BOOL:${include_directories}>:-I\"$<JOIN:${include_directories},\"\t-I\">\">)
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set(generated_compile_definitions
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$<$<BOOL:${compile_definitions}>:-D$<JOIN:${compile_definitions},\t-D>>)
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# Obtain language standard of the file
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set(device_compiler_cxx_standard)
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get_target_property(targetCxxStandard ${SDK_BUILD_IR_TARGET} CXX_STANDARD)
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if (targetCxxStandard MATCHES 17)
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set(device_compiler_cxx_standard "-std=c++1z")
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elseif (targetCxxStandard MATCHES 14)
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set(device_compiler_cxx_standard "-std=c++14")
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elseif (targetCxxStandard MATCHES 11)
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set(device_compiler_cxx_standard "-std=c++11")
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elseif (targetCxxStandard MATCHES 98)
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message(FATAL_ERROR "SYCL applications cannot be compiled using C++98")
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else ()
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set(device_compiler_cxx_standard "")
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endif()
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get_property(source_compile_flags
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SOURCE ${SDK_BUILD_IR_SOURCE}
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PROPERTY COMPUTECPP_SOURCE_FLAGS
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)
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separate_arguments(source_compile_flags)
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if(source_compile_flags)
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list(APPEND computecpp_source_flags ${source_compile_flags})
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endif()
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list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS
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${device_compiler_cxx_standard}
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${COMPUTECPP_USER_FLAGS}
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${computecpp_source_flags}
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)
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set(ir_dependencies ${SDK_BUILD_IR_SOURCE})
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get_target_property(target_libraries ${SDK_BUILD_IR_TARGET} LINK_LIBRARIES)
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if(target_libraries)
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foreach(library ${target_libraries})
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if(TARGET ${library})
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list(APPEND ir_dependencies ${library})
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endif()
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endforeach()
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endif()
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# Depfile support was only added in CMake 3.7
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# CMake throws an error if it is unsupported by the generator (i. e. not ninja)
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if((NOT CMAKE_VERSION VERSION_LESS 3.7.0) AND
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CMAKE_GENERATOR MATCHES "Ninja")
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file(RELATIVE_PATH relOutputFile ${CMAKE_BINARY_DIR} ${outputDeviceFile})
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set(generate_depfile -MMD -MF ${depFileName} -MT ${relOutputFile})
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set(enable_depfile DEPFILE ${depFileName})
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endif()
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# Add custom command for running compute++
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add_custom_command(
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OUTPUT ${outputDeviceFile} ${outputSyclFile}
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COMMAND ${ComputeCpp_DEVICE_COMPILER_EXECUTABLE}
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${COMPUTECPP_DEVICE_COMPILER_FLAGS}
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${generated_include_directories}
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${generated_compile_definitions}
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-sycl-ih ${outputSyclFile}
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-o ${outputDeviceFile}
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-c ${SDK_BUILD_IR_SOURCE}
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${generate_depfile}
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DEPENDS ${ir_dependencies}
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IMPLICIT_DEPENDS CXX ${SDK_BUILD_IR_SOURCE}
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${enable_depfile}
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WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
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COMMENT "Building ComputeCpp integration header file ${outputSyclFile}")
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# Name: (user-defined name)_(source file)_(counter)_ih
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set(headerTargetName
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${SDK_BUILD_IR_TARGET}_${sourceFileName}_${SDK_BUILD_IR_COUNTER}_ih)
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if(NOT MSVC)
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# Add a custom target for the generated integration header
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add_custom_target(${headerTargetName} DEPENDS ${outputDeviceFile} ${outputSyclFile})
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add_dependencies(${SDK_BUILD_IR_TARGET} ${headerTargetName})
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endif()
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# This property can be set on a per-target basis to indicate that the
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# integration header should appear after the main source listing
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get_target_property(includeAfter ${SDK_ADD_SYCL_TARGET} COMPUTECPP_INCLUDE_AFTER)
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if(includeAfter)
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# Change the source file to the integration header - e.g.
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# g++ -c source_file_name.cpp.sycl
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get_target_property(current_sources ${SDK_BUILD_IR_TARGET} SOURCES)
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# Remove absolute path to source file
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list(REMOVE_ITEM current_sources ${SDK_BUILD_IR_SOURCE})
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# Remove relative path to source file
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string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" ""
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rel_source_file ${SDK_BUILD_IR_SOURCE}
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)
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list(REMOVE_ITEM current_sources ${rel_source_file})
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# Add SYCL header to source list
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list(APPEND current_sources ${outputSyclFile})
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set_property(TARGET ${SDK_BUILD_IR_TARGET}
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PROPERTY SOURCES ${current_sources})
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# CMake/gcc don't know what language a .sycl file is, so tell them
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set_property(SOURCE ${outputSyclFile} PROPERTY LANGUAGE CXX)
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set(includedFile ${SDK_BUILD_IR_SOURCE})
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set(cppFile ${outputSyclFile})
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else()
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set_property(SOURCE ${outputSyclFile} PROPERTY HEADER_FILE_ONLY ON)
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set(includedFile ${outputSyclFile})
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set(cppFile ${SDK_BUILD_IR_SOURCE})
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endif()
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# Force inclusion of the integration header for the host compiler
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if(MSVC)
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# Group SYCL files inside Visual Studio
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source_group("SYCL" FILES ${outputSyclFile})
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if(includeAfter)
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# Allow the source file to be edited using Visual Studio.
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# It will be added as a header file so it won't be compiled.
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set_property(SOURCE ${SDK_BUILD_IR_SOURCE} PROPERTY HEADER_FILE_ONLY true)
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endif()
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# Add both source and the sycl files to the VS solution.
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target_sources(${SDK_BUILD_IR_TARGET} PUBLIC ${SDK_BUILD_IR_SOURCE} ${outputSyclFile})
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set(forceIncludeFlags "/FI${includedFile} /TP")
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else()
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set(forceIncludeFlags "-include ${includedFile} -x c++")
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endif()
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set_property(
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SOURCE ${cppFile}
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APPEND_STRING PROPERTY COMPILE_FLAGS "${forceIncludeFlags}"
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)
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endfunction(__build_ir)
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#######################
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# add_sycl_to_target
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#######################
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#
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# Adds a SYCL compilation custom command associated with an existing
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# target and sets a dependency on that new command.
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#
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# TARGET : Name of the target to add SYCL to.
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# SOURCES : Source files to be compiled for SYCL.
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#
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function(add_sycl_to_target)
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set(options)
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set(one_value_args
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TARGET
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)
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set(multi_value_args
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SOURCES
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)
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cmake_parse_arguments(SDK_ADD_SYCL
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"${options}"
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"${one_value_args}"
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"${multi_value_args}"
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${ARGN}
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)
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set_target_properties(${SDK_ADD_SYCL_TARGET} PROPERTIES LINKER_LANGUAGE CXX)
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# If the CXX compiler is set to compute++ enable the driver.
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get_filename_component(cmakeCxxCompilerFileName "${CMAKE_CXX_COMPILER}" NAME)
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if("${cmakeCxxCompilerFileName}" STREQUAL "compute++")
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if(MSVC)
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message(FATAL_ERROR "The compiler driver is not supported by this system,
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revert the CXX compiler to your default host compiler.")
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endif()
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get_target_property(includeAfter ${SDK_ADD_SYCL_TARGET} COMPUTECPP_INCLUDE_AFTER)
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if(includeAfter)
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list(APPEND COMPUTECPP_USER_FLAGS -fsycl-ih-last)
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endif()
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list(INSERT COMPUTECPP_DEVICE_COMPILER_FLAGS 0 -sycl-driver)
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# Prepend COMPUTECPP_DEVICE_COMPILER_FLAGS and append COMPUTECPP_USER_FLAGS
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foreach(prop COMPILE_OPTIONS INTERFACE_COMPILE_OPTIONS)
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get_target_property(target_compile_options ${SDK_ADD_SYCL_TARGET} ${prop})
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if(NOT target_compile_options)
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set(target_compile_options "")
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endif()
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set_property(
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TARGET ${SDK_ADD_SYCL_TARGET}
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PROPERTY ${prop}
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${COMPUTECPP_DEVICE_COMPILER_FLAGS}
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${target_compile_options}
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${COMPUTECPP_USER_FLAGS}
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)
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endforeach()
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else()
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set(fileCounter 0)
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list(INSERT COMPUTECPP_DEVICE_COMPILER_FLAGS 0 -sycl)
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# Add custom target to run compute++ and generate the integration header
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foreach(sourceFile ${SDK_ADD_SYCL_SOURCES})
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if(NOT IS_ABSOLUTE ${sourceFile})
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set(sourceFile "${CMAKE_CURRENT_SOURCE_DIR}/${sourceFile}")
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endif()
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__build_ir(
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TARGET ${SDK_ADD_SYCL_TARGET}
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SOURCE ${sourceFile}
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COUNTER ${fileCounter}
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)
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MATH(EXPR fileCounter "${fileCounter} + 1")
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endforeach()
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endif()
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set_property(TARGET ${SDK_ADD_SYCL_TARGET}
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APPEND PROPERTY LINK_LIBRARIES ComputeCpp::ComputeCpp)
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set_property(TARGET ${SDK_ADD_SYCL_TARGET}
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APPEND PROPERTY INTERFACE_LINK_LIBRARIES ComputeCpp::ComputeCpp)
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endfunction(add_sycl_to_target)
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