1 files changed, 109 insertions, 0 deletions
diff --git a/build_files/build_environment/cmake/dpcpp.cmake b/build_files/build_environment/cmake/dpcpp.cmake
new file mode 100644
index 00000000000..3c3fe201073
--- /dev/null
+++ b/build_files/build_environment/cmake/dpcpp.cmake
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+
+if(WIN32)
+  set(LLVM_GENERATOR "Ninja")
+else()
+  set(LLVM_GENERATOR "Unix Makefiles")
+endif()
+
+set(DPCPP_CONFIGURE_ARGS
+  # When external deps dpcpp needs are not found it will automatically
+  # download the during the configure stage using FetchContent. Given
+  # we need to keep an archive of all source used during build for compliance
+  # reasons it CANNOT download anything we do not know about. By setting
+  # this property to ON, all downloads are disabled, and we will have to
+  # provide the missing deps some other way, a build error beats a compliance
+  # violation
+  --cmake-opt FETCHCONTENT_FULLY_DISCONNECTED=ON
+)
+set(DPCPP_SOURCE_ROOT ${BUILD_DIR}/dpcpp/src/external_dpcpp/)
+set(DPCPP_EXTRA_ARGS
+  # When external deps dpcpp needs are not found it will automatically
+  # download the during the configure stage using FetchContent. Given
+  # we need to keep an archive of all source used during build for compliance
+  # reasons it CANNOT download anything we do not know about. By setting
+  # this property to ON, all downloads are disabled, and we will have to
+  # provide the missing deps some other way, a build or configure error
+  # beats a compliance violation
+  -DFETCHCONTENT_FULLY_DISCONNECTED=ON
+  -DLLVMGenXIntrinsics_SOURCE_DIR=${BUILD_DIR}/vcintrinsics/src/external_vcintrinsics/
+  -DOpenCL_HEADERS=file://${PACKAGE_DIR}/${OPENCLHEADERS_FILE}
+  -DOpenCL_LIBRARY_SRC=file://${PACKAGE_DIR}/${ICDLOADER_FILE}
+  -DBOOST_MP11_SOURCE_DIR=${BUILD_DIR}/mp11/src/external_mp11/
+  -DLEVEL_ZERO_LIBRARY=${LIBDIR}/level-zero/lib/${LIBPREFIX}ze_loader${SHAREDLIBEXT}
+  -DLEVEL_ZERO_INCLUDE_DIR=${LIBDIR}/level-zero/include
+  -DLLVM_EXTERNAL_SPIRV_HEADERS_SOURCE_DIR=${BUILD_DIR}/spirvheaders/src/external_spirvheaders/
+  # Below here is copied from an invocation of buildbot/config.py
+  -DLLVM_ENABLE_ASSERTIONS=ON
+  -DLLVM_TARGETS_TO_BUILD=X86
+  -DLLVM_EXTERNAL_PROJECTS=sycl^^llvm-spirv^^opencl^^libdevice^^xpti^^xptifw
+  -DLLVM_EXTERNAL_SYCL_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/sycl
+  -DLLVM_EXTERNAL_LLVM_SPIRV_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/llvm-spirv
+  -DLLVM_EXTERNAL_XPTI_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xpti
+  -DXPTI_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xpti
+  -DLLVM_EXTERNAL_XPTIFW_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/xptifw
+  -DLLVM_EXTERNAL_LIBDEVICE_SOURCE_DIR=${DPCPP_SOURCE_ROOT}/libdevice
+  -DLLVM_ENABLE_PROJECTS=clang^^sycl^^llvm-spirv^^opencl^^libdevice^^xpti^^xptifw
+  -DLIBCLC_TARGETS_TO_BUILD=
+  -DLIBCLC_GENERATE_REMANGLED_VARIANTS=OFF
+  -DSYCL_BUILD_PI_HIP_PLATFORM=AMD
+  -DLLVM_BUILD_TOOLS=ON
+  -DSYCL_ENABLE_WERROR=OFF
+  -DSYCL_INCLUDE_TESTS=ON
+  -DLLVM_ENABLE_DOXYGEN=OFF
+  -DLLVM_ENABLE_SPHINX=OFF
+  -DBUILD_SHARED_LIBS=OFF
+  -DSYCL_ENABLE_XPTI_TRACING=ON
+  -DLLVM_ENABLE_LLD=OFF
+  -DXPTI_ENABLE_WERROR=OFF
+  -DSYCL_CLANG_EXTRA_FLAGS=
+  -DSYCL_ENABLE_PLUGINS=level_zero
+  -DCMAKE_INSTALL_RPATH=\$ORIGIN
+  -DPython3_ROOT_DIR=${LIBDIR}/python/
+  -DPython3_EXECUTABLE=${PYTHON_BINARY}
+  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
+  -DLLDB_ENABLE_CURSES=OFF
+  -DLLVM_ENABLE_TERMINFO=OFF
+)
+
+if(WIN32)
+   list(APPEND DPCPP_EXTRA_ARGS -DPython3_FIND_REGISTRY=NEVER)
+endif()
+
+ExternalProject_Add(external_dpcpp
+  URL file://${PACKAGE_DIR}/${DPCPP_FILE}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH ${DPCPP_HASH_TYPE}=${DPCPP_HASH}
+  PREFIX ${BUILD_DIR}/dpcpp
+  CMAKE_GENERATOR ${LLVM_GENERATOR}
+  SOURCE_SUBDIR llvm
+  LIST_SEPARATOR ^^
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/dpcpp ${DEFAULT_CMAKE_FLAGS} ${DPCPP_EXTRA_ARGS}
+  #CONFIGURE_COMMAND ${PYTHON_BINARY} ${BUILD_DIR}/dpcpp/src/external_dpcpp/buildbot/configure.py ${DPCPP_CONFIGURE_ARGS}
+  #BUILD_COMMAND echo "." #${PYTHON_BINARY} ${BUILD_DIR}/dpcpp/src/external_dpcpp/buildbot/compile.py
+  INSTALL_COMMAND ${CMAKE_COMMAND} --build . -- deploy-sycl-toolchain
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/dpcpp/src/external_dpcpp < ${PATCH_DIR}/dpcpp.diff
+  INSTALL_DIR ${LIBDIR}/dpcpp
+)
+
+add_dependencies(
+  external_dpcpp
+  external_python
+  external_python_site_packages
+  external_vcintrinsics
+  external_openclheaders
+  external_icdloader
+  external_mp11
+  external_level-zero
+  external_spirvheaders
+)
+
+if(BUILD_MODE STREQUAL Release AND WIN32)
+  ExternalProject_Add_Step(external_dpcpp after_install
+      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang-cl.exe
+      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang-cpp.exe
+      COMMAND ${CMAKE_COMMAND} -E rm -f ${LIBDIR}/dpcpp/bin/clang.exe
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/dpcpp ${HARVEST_TARGET}/dpcpp
+  )
+endif()