From cb81975714a96ecb2faf33ca242feeee3543b1db Mon Sep 17 00:00:00 2001
From: Luke Iwanski <luke@codeplay.com>
Date: Mon, 19 Sep 2016 12:44:13 +0100
Subject: Partial OpenCL support via SYCL compatible with ComputeCpp CE.

---
 cmake/EigenTesting.cmake   | 135 +++++++++++++++++++++++++++
 cmake/FindComputeCpp.cmake | 228 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 363 insertions(+)
 create mode 100644 cmake/FindComputeCpp.cmake

(limited to 'cmake')

diff --git a/cmake/EigenTesting.cmake b/cmake/EigenTesting.cmake
index 57866d865..602ab5271 100644
--- a/cmake/EigenTesting.cmake
+++ b/cmake/EigenTesting.cmake
@@ -109,6 +109,103 @@ macro(ei_add_test_internal testname testname_with_suffix)
 
 endmacro(ei_add_test_internal)
 
+# SYCL
+macro(ei_add_test_internal_sycl testname testname_with_suffix)
+  include_directories( SYSTEM ${COMPUTECPP_PACKAGE_ROOT_DIR}/include)
+  set(targetname ${testname_with_suffix})
+
+  if(EIGEN_ADD_TEST_FILENAME_EXTENSION)
+    set(filename ${testname}.${EIGEN_ADD_TEST_FILENAME_EXTENSION})
+  else()
+    set(filename ${testname}.cpp)
+  endif()
+
+  set( include_file ${CMAKE_CURRENT_BINARY_DIR}/inc_${filename})
+  set( bc_file ${CMAKE_CURRENT_BINARY_DIR}/${filename})
+  set( host_file ${CMAKE_CURRENT_SOURCE_DIR}/${filename})
+
+  ADD_CUSTOM_COMMAND(
+    OUTPUT ${include_file}
+    COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${host_file}\\\"" > ${include_file}
+    COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\\"${bc_file}.sycl\\\"" >> ${include_file}
+    DEPENDS ${filename}
+    COMMENT "Building ComputeCpp integration header file ${include_file}"
+  )
+  # Add a custom target for the generated integration header
+  add_custom_target(${testname}_integration_header_woho DEPENDS ${include_file})
+
+  add_executable(${targetname} ${include_file})
+  add_dependencies(${targetname} ${testname}_integration_header_woho)
+  add_sycl_to_target(${targetname} ${filename} ${CMAKE_CURRENT_BINARY_DIR})
+
+  if (targetname MATCHES "^eigen2_")
+    add_dependencies(eigen2_buildtests ${targetname})
+  else()
+    add_dependencies(buildtests ${targetname})
+  endif()
+
+  if(EIGEN_NO_ASSERTION_CHECKING)
+    ei_add_target_property(${targetname} COMPILE_FLAGS "-DEIGEN_NO_ASSERTION_CHECKING=1")
+  else(EIGEN_NO_ASSERTION_CHECKING)
+    if(EIGEN_DEBUG_ASSERTS)
+      ei_add_target_property(${targetname} COMPILE_FLAGS "-DEIGEN_DEBUG_ASSERTS=1")
+    endif(EIGEN_DEBUG_ASSERTS)
+  endif(EIGEN_NO_ASSERTION_CHECKING)
+
+  ei_add_target_property(${targetname} COMPILE_FLAGS "-DEIGEN_TEST_MAX_SIZE=${EIGEN_TEST_MAX_SIZE}")
+
+  ei_add_target_property(${targetname} COMPILE_FLAGS "-DEIGEN_TEST_FUNC=${testname}")
+
+  if(MSVC AND NOT EIGEN_SPLIT_LARGE_TESTS)
+    ei_add_target_property(${targetname} COMPILE_FLAGS "/bigobj")
+  endif()
+
+  # let the user pass flags.
+  if(${ARGC} GREATER 2)
+    ei_add_target_property(${targetname} COMPILE_FLAGS "${ARGV2}")
+  endif(${ARGC} GREATER 2)
+
+  if(EIGEN_TEST_CUSTOM_CXX_FLAGS)
+    ei_add_target_property(${targetname} COMPILE_FLAGS "${EIGEN_TEST_CUSTOM_CXX_FLAGS}")
+  endif()
+
+  if(EIGEN_STANDARD_LIBRARIES_TO_LINK_TO)
+    target_link_libraries(${targetname} ${EIGEN_STANDARD_LIBRARIES_TO_LINK_TO})
+  endif()
+  if(EXTERNAL_LIBS)
+    target_link_libraries(${targetname} ${EXTERNAL_LIBS})
+  endif()
+  if(EIGEN_TEST_CUSTOM_LINKER_FLAGS)
+    target_link_libraries(${targetname} ${EIGEN_TEST_CUSTOM_LINKER_FLAGS})
+  endif()
+
+  if(${ARGC} GREATER 3)
+    set(libs_to_link ${ARGV3})
+    # it could be that some cmake module provides a bad library string " "  (just spaces),
+    # and that severely breaks target_link_libraries ("can't link to -l-lstdc++" errors).
+    # so we check for strings containing only spaces.
+    string(STRIP "${libs_to_link}" libs_to_link_stripped)
+    string(LENGTH "${libs_to_link_stripped}" libs_to_link_stripped_length)
+    if(${libs_to_link_stripped_length} GREATER 0)
+      # notice: no double quotes around ${libs_to_link} here. It may be a list.
+      target_link_libraries(${targetname} ${libs_to_link})
+    endif()
+  endif()
+
+  add_test(${testname_with_suffix} "${targetname}")
+
+  # Specify target and test labels according to EIGEN_CURRENT_SUBPROJECT
+  get_property(current_subproject GLOBAL PROPERTY EIGEN_CURRENT_SUBPROJECT)
+  if ((current_subproject) AND (NOT (current_subproject STREQUAL "")))
+    set_property(TARGET ${targetname} PROPERTY LABELS "Build${current_subproject}")
+    add_dependencies("Build${current_subproject}" ${targetname})
+    set_property(TEST ${testname_with_suffix} PROPERTY LABELS "${current_subproject}")
+  endif()
+
+
+endmacro(ei_add_test_internal_sycl)
+
+
 # Macro to add a test
 #
 # the unique mandatory parameter testname must correspond to a file
@@ -185,6 +282,39 @@ macro(ei_add_test testname)
   endif(EIGEN_SPLIT_LARGE_TESTS AND suffixes)
 endmacro(ei_add_test)
 
+macro(ei_add_test_sycl testname)
+  get_property(EIGEN_TESTS_LIST GLOBAL PROPERTY EIGEN_TESTS_LIST)
+  set(EIGEN_TESTS_LIST "${EIGEN_TESTS_LIST}${testname}\n")
+  set_property(GLOBAL PROPERTY EIGEN_TESTS_LIST "${EIGEN_TESTS_LIST}")
+
+  if(EIGEN_ADD_TEST_FILENAME_EXTENSION)
+    set(filename ${testname}.${EIGEN_ADD_TEST_FILENAME_EXTENSION})
+  else()
+    set(filename ${testname}.cpp)
+  endif()
+
+  file(READ "${filename}" test_source)
+  set(parts 0)
+  string(REGEX MATCHALL "CALL_SUBTEST_[0-9]+|EIGEN_TEST_PART_[0-9]+|EIGEN_SUFFIXES(;[0-9]+)+"
+         occurences "${test_source}")
+  string(REGEX REPLACE "CALL_SUBTEST_|EIGEN_TEST_PART_|EIGEN_SUFFIXES" "" suffixes "${occurences}")
+  list(REMOVE_DUPLICATES suffixes)
+  if(EIGEN_SPLIT_LARGE_TESTS AND suffixes)
+    add_custom_target(${testname})
+    foreach(suffix ${suffixes})
+      ei_add_test_internal_sycl(${testname} ${testname}_${suffix}
+        "${ARGV1} -DEIGEN_TEST_PART_${suffix}=1" "${ARGV2}")
+      add_dependencies(${testname} ${testname}_${suffix})
+    endforeach(suffix)
+  else(EIGEN_SPLIT_LARGE_TESTS AND suffixes)
+    set(symbols_to_enable_all_parts "")
+    foreach(suffix ${suffixes})
+      set(symbols_to_enable_all_parts
+        "${symbols_to_enable_all_parts} -DEIGEN_TEST_PART_${suffix}=1")
+    endforeach(suffix)
+    ei_add_test_internal_sycl(${testname} ${testname} "${ARGV1} ${symbols_to_enable_all_parts}" "${ARGV2}")
+  endif(EIGEN_SPLIT_LARGE_TESTS AND suffixes)
+endmacro(ei_add_test_sycl)
 
 # adds a failtest, i.e. a test that succeed if the program fails to compile
 # note that the test runner for these is CMake itself, when passed -DEIGEN_FAILTEST=ON
@@ -330,6 +460,11 @@ macro(ei_testing_print_summary)
       message(STATUS "C++11:             OFF")
     endif()
 
+    if(EIGEN_TEST_SYCL)
+      message(STATUS "SYCL:              ON")
+    else()
+      message(STATUS "SYCL:              OFF")
+    endif()
     if(EIGEN_TEST_CUDA)
       if(EIGEN_TEST_CUDA_CLANG)
         message(STATUS "CUDA:              ON (using clang)")
diff --git a/cmake/FindComputeCpp.cmake b/cmake/FindComputeCpp.cmake
new file mode 100644
index 000000000..3aab5b833
--- /dev/null
+++ b/cmake/FindComputeCpp.cmake
@@ -0,0 +1,228 @@
+#.rst:
+# FindComputeCpp
+#---------------
+
+#########################
+#  FindComputeCpp.cmake
+#########################
+#
+#  Tools for finding and building with ComputeCpp.
+#
+
+# Require CMake version 3.2.2 or higher
+cmake_minimum_required(VERSION 3.2.2)
+
+# Check that a supported host compiler can be found
+if(CMAKE_COMPILER_IS_GNUCXX)
+    # Require at least gcc 4.8
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
+      message(FATAL_ERROR
+        "host compiler - Not found! (gcc version must be at least 4.8)")
+    # Require the GCC dual ABI to be disabled for 5.1 or higher
+    elseif (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 5.1)
+      set(COMPUTECPP_DISABLE_GCC_DUAL_ABI "True")
+      message(STATUS
+        "host compiler - gcc ${CMAKE_CXX_COMPILER_VERSION} (note pre 5.1 gcc ABI enabled)")
+    else()
+      message(STATUS "host compiler - gcc ${CMAKE_CXX_COMPILER_VERSION}")
+    endif()
+elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    # Require at least clang 3.6
+    if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.6)
+      message(FATAL_ERROR
+        "host compiler - Not found! (clang version must be at least 3.6)")
+    else()
+			set(COMPUTECPP_DISABLE_GCC_DUAL_ABI "True")
+      message(STATUS "host compiler - clang ${CMAKE_CXX_COMPILER_VERSION}")
+    endif()
+else()
+  message(WARNING
+    "host compiler - Not found! (ComputeCpp supports GCC and Clang, see readme)")
+endif()
+
+set(COMPUTECPP_64_BIT_DEFAULT ON)
+option(COMPUTECPP_64_BIT_CODE "Compile device code in 64 bit mode"
+        ${COMPUTECPP_64_BIT_DEFAULT})
+mark_as_advanced(COMPUTECPP_64_BIT_CODE)
+
+# Find OpenCL package
+find_package(OpenCL REQUIRED)
+
+# Find ComputeCpp package
+if(EXISTS ${COMPUTECPP_PACKAGE_ROOT_DIR})
+  message(STATUS "ComputeCpp package - Found (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+else()
+  message(FATAL_ERROR "ComputeCpp package - Not found! (please set COMPUTECPP_PACKAGE_ROOT_DIR) (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+endif()
+option(COMPUTECPP_PACKAGE_ROOT_DIR "Path to the ComputeCpp Package")
+
+# Obtain the path to compute++
+find_program(COMPUTECPP_DEVICE_COMPILER compute++ PATHS
+  ${COMPUTECPP_PACKAGE_ROOT_DIR} PATH_SUFFIXES bin)
+if (EXISTS ${COMPUTECPP_DEVICE_COMPILER})
+  mark_as_advanced(COMPUTECPP_DEVICE_COMPILER)
+  message(STATUS "compute++ - Found (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+else()
+  message(FATAL_ERROR "compute++ - Not found! (${COMPUTECPP_DEVICE_COMPILER}) (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+endif()
+
+# Obtain the path to computecpp_info
+find_program(COMPUTECPP_INFO_TOOL computecpp_info PATHS
+  ${COMPUTECPP_PACKAGE_ROOT_DIR} PATH_SUFFIXES bin)
+if (EXISTS ${COMPUTECPP_INFO_TOOL})
+  mark_as_advanced(${COMPUTECPP_INFO_TOOL})
+  message(STATUS "computecpp_info - Found (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+else()
+  message(FATAL_ERROR "computecpp_info - Not found! (${COMPUTECPP_INFO_TOOL}) (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+endif()
+
+# Obtain the path to the ComputeCpp runtime library
+find_library(COMPUTECPP_RUNTIME_LIBRARY ComputeCpp PATHS ${COMPUTECPP_PACKAGE_ROOT_DIR}
+  HINTS ${COMPUTECPP_PACKAGE_ROOT_DIR}/lib PATH_SUFFIXES lib
+  DOC "ComputeCpp Runtime Library" NO_DEFAULT_PATH)
+
+if (EXISTS ${COMPUTECPP_RUNTIME_LIBRARY})
+  mark_as_advanced(COMPUTECPP_RUNTIME_LIBRARY)
+  message(STATUS "libComputeCpp.so - Found")
+else()
+  message(FATAL_ERROR "libComputeCpp.so - Not found! (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+endif()
+
+# Obtain the ComputeCpp include directory
+set(COMPUTECPP_INCLUDE_DIRECTORY ${COMPUTECPP_PACKAGE_ROOT_DIR}/include/)
+if (NOT EXISTS ${COMPUTECPP_INCLUDE_DIRECTORY})
+  message(FATAL_ERROR "ComputeCpp includes - Not found! (${COMPUTECPP_PACKAGE_ROOT_DIR}/include/)")
+else()
+  message(STATUS "ComputeCpp includes - Found (${COMPUTECPP_PACKAGE_ROOT_DIR})")
+endif()
+
+# Obtain the package version
+execute_process(COMMAND ${COMPUTECPP_INFO_TOOL} "--dump-version"
+  OUTPUT_VARIABLE COMPUTECPP_PACKAGE_VERSION
+  RESULT_VARIABLE COMPUTECPP_INFO_TOOL_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(NOT COMPUTECPP_INFO_TOOL_RESULT EQUAL "0")
+  message(FATAL_ERROR "Package version - Error obtaining version!")
+else()
+  mark_as_advanced(COMPUTECPP_PACKAGE_VERSION)
+  message(STATUS "Package version - ${COMPUTECPP_PACKAGE_VERSION}")
+endif()
+
+# Obtain the device compiler flags
+execute_process(COMMAND ${COMPUTECPP_INFO_TOOL} "--dump-device-compiler-flags"
+  OUTPUT_VARIABLE COMPUTECPP_DEVICE_COMPILER_FLAGS
+  RESULT_VARIABLE COMPUTECPP_INFO_TOOL_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(NOT COMPUTECPP_INFO_TOOL_RESULT EQUAL "0")
+  message(FATAL_ERROR "compute++ flags - Error obtaining compute++ flags!")
+else()
+  mark_as_advanced(COMPUTECPP_COMPILER_FLAGS)
+  message(STATUS "compute++ flags - ${COMPUTECPP_DEVICE_COMPILER_FLAGS}")
+endif()
+
+set(COMPUTECPP_DEVICE_COMPILER_FLAGS ${COMPUTECPP_DEVICE_COMPILER_FLAGS} -sycl-compress-name -no-serial-memop -DEIGEN_NO_ASSERTION_CHECKING=1)
+
+# Check if the platform is supported
+execute_process(COMMAND ${COMPUTECPP_INFO_TOOL} "--dump-is-supported"
+  OUTPUT_VARIABLE COMPUTECPP_PLATFORM_IS_SUPPORTED
+  RESULT_VARIABLE COMPUTECPP_INFO_TOOL_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(NOT COMPUTECPP_INFO_TOOL_RESULT EQUAL "0")
+  message(FATAL_ERROR "platform - Error checking platform support!")
+else()
+  mark_as_advanced(COMPUTECPP_PLATFORM_IS_SUPPORTED)
+  if (COMPUTECPP_PLATFORM_IS_SUPPORTED)
+    message(STATUS "platform - your system can support ComputeCpp")
+  else()
+    message(STATUS "platform - your system CANNOT support ComputeCpp")
+  endif()
+endif()
+
+####################
+#   __build_sycl
+####################
+#
+#  Adds a custom target for running compute++ and adding a dependency for the
+#  resulting integration header.
+#
+#  targetName : Name of the target.
+#  sourceFile : Source file to be compiled.
+#  binaryDir  : Intermediate output directory for the integration header.
+#
+function(__build_spir targetName sourceFile binaryDir)
+
+  # Retrieve source file name.
+  get_filename_component(sourceFileName ${sourceFile} NAME)
+
+  # Set the path to the Sycl file.
+  set(outputSyclFile ${binaryDir}/${sourceFileName}.sycl)
+
+  # Add any user-defined include to the device compiler
+  get_property(includeDirectories DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY
+    INCLUDE_DIRECTORIES)
+  set(device_compiler_includes "")
+  foreach(directory ${includeDirectories})
+    set(device_compiler_includes "-I${directory}" ${device_compiler_includes})
+  endforeach()
+  if (CMAKE_INCLUDE_PATH)
+    foreach(directory ${CMAKE_INCLUDE_PATH})
+      set(device_compiler_includes "-I${directory}"
+        ${device_compiler_includes})
+    endforeach()
+  endif()
+
+  # Convert argument list format
+  separate_arguments(COMPUTECPP_DEVICE_COMPILER_FLAGS)
+
+  # Add custom command for running compute++
+  add_custom_command(
+    OUTPUT ${outputSyclFile}
+    COMMAND ${COMPUTECPP_DEVICE_COMPILER}
+            ${COMPUTECPP_DEVICE_COMPILER_FLAGS}
+            -I${COMPUTECPP_INCLUDE_DIRECTORY}
+            ${COMPUTECPP_PLATFORM_SPECIFIC_ARGS}
+            ${device_compiler_includes}
+            -o ${outputSyclFile}
+            -c ${CMAKE_CURRENT_SOURCE_DIR}/${sourceFile}
+    DEPENDS ${sourceFile}
+  COMMENT "Building ComputeCpp integration header file ${outputSyclFile}")
+
+  # Add a custom target for the generated integration header
+  add_custom_target(${targetName}_integration_header DEPENDS ${outputSyclFile})
+
+  # Add a dependency on the integration header
+  add_dependencies(${targetName} ${targetName}_integration_header)
+
+  # Force inclusion of the integration header for the host compiler
+  #set(compileFlags -include ${include_file} "-Wall")
+  target_compile_options(${targetName} PUBLIC ${compileFlags})
+
+  # Set the host compiler C++ standard to C++11
+  set_property(TARGET ${targetName} PROPERTY CXX_STANDARD 11)
+
+  # Disable GCC dual ABI on GCC 5.1 and higher
+  if(COMPUTECPP_DISABLE_GCC_DUAL_ABI)
+    set_property(TARGET ${targetName} APPEND PROPERTY COMPILE_DEFINITIONS
+      "_GLIBCXX_USE_CXX11_ABI=0")
+  endif()
+
+endfunction()
+
+#######################
+#  add_sycl_to_target
+#######################
+#
+#  Adds a SYCL compilation custom command associated with an existing
+#  target and sets a dependency on that new command.
+#
+#  targetName : Name of the target to add a SYCL to.
+#  sourceFile : Source file to be compiled for SYCL.
+#  binaryDir  : Intermediate output directory for the integration header.
+#
+function(add_sycl_to_target targetName sourceFile binaryDir)
+
+  # Add custom target to run compute++ and generate the integration header
+  __build_spir(${targetName} ${sourceFile} ${binaryDir})
+
+  # Link with the ComputeCpp runtime library
+  target_link_libraries(${targetName} PUBLIC ${COMPUTECPP_RUNTIME_LIBRARY}
+                        PUBLIC ${OpenCL_LIBRARIES})
+
+endfunction(add_sycl_to_target)
-- 
cgit v1.2.3


From 6ed571744bd6f4233ebb88e13e3c3f86b12504b3 Mon Sep 17 00:00:00 2001
From: "enrico.detoma" <enrico.detoma@gmail.com>
Date: Wed, 26 Oct 2016 22:48:46 +0200
Subject: Always enable /bigobj for tests to avoid a compile error in MSVC 2015

---
 cmake/EigenTesting.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/EigenTesting.cmake b/cmake/EigenTesting.cmake
index 602ab5271..a88d54468 100644
--- a/cmake/EigenTesting.cmake
+++ b/cmake/EigenTesting.cmake
@@ -61,7 +61,7 @@ macro(ei_add_test_internal testname testname_with_suffix)
 
   ei_add_target_property(${targetname} COMPILE_FLAGS "-DEIGEN_TEST_FUNC=${testname}")
   
-  if(MSVC AND NOT EIGEN_SPLIT_LARGE_TESTS)
+  if(MSVC)
     ei_add_target_property(${targetname} COMPILE_FLAGS "/bigobj")
   endif()  
 
-- 
cgit v1.2.3