CMakeLists.txt - chromiumos/third_party/clspv - Git at Google

 # Copyright 2017 The Clspv Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.


 cmake_minimum_required(VERSION 3.13.4)

 if(NOT COMMAND find_host_package)
   macro(find_host_package)
     find_package(${ARGN})
   endmacro()
 endif()

 # Tests require Python3
 find_host_package(PythonInterp 3 REQUIRED)

 # If we are the parent CMakeLists.txt, need to declare a project
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
   project(clspv)
 endif()

 set(CMAKE_CXX_STANDARD 14)

 # Make sure CMAKE_BUILD_TYPE gets a value because we rely on it for
 # running unit tests correctly on Windows.
 if (NOT DEFINED CMAKE_BUILD_TYPE)
   message(STATUS "CMAKE_BUILD_TYPE was not specified, defaulting to Debug")
   set(CMAKE_BUILD_TYPE Debug)
 endif()

 # Check if required third-party dependencies exist.
 macro(use_component path)
 if(NOT IS_DIRECTORY ${path})
   message(FATAL_ERROR "Required component '${path}' does not exist! Please run 'python utils/fetch_sources.py' in the '${CMAKE_CURRENT_SOURCE_DIR}' folder.")
 endif()
 endmacro()

 option(SKIP_CLSPV_TOOLS_INSTALL "Skip installation" ${SKIP_CLSPV_TOOLS_INSTALL})
 if(NOT ${SKIP_CLSPV_TOOLS_INSTALL})
   set(ENABLE_CLSPV_TOOLS_INSTALL ON)
 endif()

 if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
   # GCC 7.3 complains about LLVM code: RetryAfterSignal in lib/Support/Process.cpp
   # Silence that warning for now.
   # TODO(dneto): Upgrade to newer LLVM to avoid this issue.
   add_compile_options("-Wno-noexcept-type")
 endif()

 if (NOT DEFINED SPIRV_HEADERS_SOURCE_DIR)
   set(SPIRV_HEADERS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/SPIRV-Headers)
   use_component(${SPIRV_HEADERS_SOURCE_DIR})
 endif()

 if (NOT DEFINED SPIRV_TOOLS_SOURCE_DIR)
   set(SPIRV_TOOLS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/SPIRV-Tools)
   use_component(${SPIRV_TOOLS_SOURCE_DIR})
 endif()

 if (NOT TARGET spirv-dis)
   # First tell SPIR-V Tools where to find SPIR-V Headers
   set(SPIRV-Headers_SOURCE_DIR ${SPIRV_HEADERS_SOURCE_DIR})

   # Bring in the SPIR-V Tools repository which we'll use for testing
   add_subdirectory(${SPIRV_TOOLS_SOURCE_DIR}
       ${CMAKE_CURRENT_BINARY_DIR}/third_party/SPIRV-Tools EXCLUDE_FROM_ALL)
 endif()

 set(CMAKE_POSITION_INDEPENDENT_CODE ON)

 set(SPIRV_TOOLS_BINARY_DIR "$<TARGET_FILE_DIR:spirv-dis>")

 option(ENABLE_CLSPV_OPT "Enable the clspv-opt driver." ON)

 if (NOT DEFINED EXTERNAL_LLVM)
   set(EXTERNAL_LLVM 0)
 endif()
 if (${EXTERNAL_LLVM} EQUAL 1)
   if (NOT DEFINED CLSPV_LLVM_SOURCE_DIR)
     message(FATAL_ERROR "External LLVM requires CLSPV_LLVM_SOURCE_DIR to be specified")
   endif()
   if (NOT DEFINED CLSPV_CLANG_SOURCE_DIR)
     message(FATAL_ERROR "External LLVM requires CLSPV_CLANG_SOURCE_DIR to be specified")
   endif()
   if (NOT DEFINED CLSPV_LLVM_BINARY_DIR)
     message(FATAL_ERROR "External LLVM requires CLSPV_LLVM_BINARY_DIR to be specified")
   endif()
 else()
   # Setup to use the LLVM monorepo.
   if (NOT DEFINED CLSPV_LLVM_SOURCE_DIR)
     set(CLSPV_LLVM_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/llvm)
   endif()

   if (NOT DEFINED CLSPV_CLANG_SOURCE_DIR)
     set(CLSPV_CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/clang)
   endif()

   use_component(${CLSPV_LLVM_SOURCE_DIR})
   use_component(${CLSPV_CLANG_SOURCE_DIR})

   # Kokoro bots have older toolchains so make that LLVM check a warning.
   option(LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN "" ON)
   set(CLSPV_LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/third_party/llvm)

   # First tell LLVM where to find clang.
   set(LLVM_EXTERNAL_CLANG_SOURCE_DIR ${CLSPV_CLANG_SOURCE_DIR})

   # Tell LLVM not to build any targets.
   set(LLVM_TARGETS_TO_BUILD ""
       CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")

   # Then pull in LLVM for building.
   add_subdirectory(${CLSPV_LLVM_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/third_party/llvm EXCLUDE_FROM_ALL)

   # Ensure clspv and LLVM use the same build options (e.g. -D_FILE_OFFSET_BITS=64).
   list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/llvm/cmake/modules/)
   include(HandleLLVMOptions)
 endif()

 set(CLSPV_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})

 set(CLSPV_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include
   ${CLSPV_BINARY_DIR}/include
 )

 set(SPIRV_HEADERS_INCLUDE_DIRS
   ${SPIRV_HEADERS_SOURCE_DIR}/include/
 )

 set(LLVM_SOURCE_DIR ${CLSPV_LLVM_SOURCE_DIR})
 set(LLVM_BINARY_DIR ${CLSPV_LLVM_BINARY_DIR})
 set(LLVM_INCLUDE_DIRS
   ${LLVM_SOURCE_DIR}/include
   ${CLSPV_LLVM_BINARY_DIR}/include
 )

 set(CLANG_SOURCE_DIR ${CLSPV_CLANG_SOURCE_DIR})
 set(CLANG_INCLUDE_DIRS
   ${CLANG_SOURCE_DIR}/include
   ${CLSPV_LLVM_BINARY_DIR}/tools/clang/include
 )

 if(NOT WIN32)
   # Disable RTTI and exceptions (to match LLVM)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions")
 endif()

 if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=unused-variable -Werror=switch")
 elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror-unused-variable -Werror-switch")
 endif()

 # Bring in our cmake folder
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/cmake)

 # Bring in our lib folder
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/lib)

 # Bring in our tools folder
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/tools)

 # Bring in our test folder
 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/test)


 if(ENABLE_CLSPV_TOOLS_INSTALL)
   install(
     FILES
       ${CMAKE_CURRENT_SOURCE_DIR}/include/clspv/AddressSpace.h
       ${CMAKE_CURRENT_SOURCE_DIR}/include/clspv/Passes.h
     DESTINATION
       ${CMAKE_INSTALL_INCLUDEDIR}/clspv/)
 endif(ENABLE_CLSPV_TOOLS_INSTALL)
	# Copyright 2017 The Clspv Authors. All rights reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.


	cmake_minimum_required(VERSION 3.13.4)

	if(NOT COMMAND find_host_package)
	macro(find_host_package)
	find_package(${ARGN})
	endmacro()
	endif()

	# Tests require Python3
	find_host_package(PythonInterp 3 REQUIRED)

	# If we are the parent CMakeLists.txt, need to declare a project
	if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
	project(clspv)
	endif()

	set(CMAKE_CXX_STANDARD 14)

	# Make sure CMAKE_BUILD_TYPE gets a value because we rely on it for
	# running unit tests correctly on Windows.
	if (NOT DEFINED CMAKE_BUILD_TYPE)
	message(STATUS "CMAKE_BUILD_TYPE was not specified, defaulting to Debug")
	set(CMAKE_BUILD_TYPE Debug)
	endif()

	# Check if required third-party dependencies exist.
	macro(use_component path)
	if(NOT IS_DIRECTORY ${path})
	message(FATAL_ERROR "Required component '${path}' does not exist! Please run 'python utils/fetch_sources.py' in the '${CMAKE_CURRENT_SOURCE_DIR}' folder.")
	endif()
	endmacro()

	option(SKIP_CLSPV_TOOLS_INSTALL "Skip installation" ${SKIP_CLSPV_TOOLS_INSTALL})
	if(NOT ${SKIP_CLSPV_TOOLS_INSTALL})
	set(ENABLE_CLSPV_TOOLS_INSTALL ON)
	endif()

	if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
	# GCC 7.3 complains about LLVM code: RetryAfterSignal in lib/Support/Process.cpp
	# Silence that warning for now.
	# TODO(dneto): Upgrade to newer LLVM to avoid this issue.
	add_compile_options("-Wno-noexcept-type")
	endif()

	if (NOT DEFINED SPIRV_HEADERS_SOURCE_DIR)
	set(SPIRV_HEADERS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/SPIRV-Headers)
	use_component(${SPIRV_HEADERS_SOURCE_DIR})
	endif()

	if (NOT DEFINED SPIRV_TOOLS_SOURCE_DIR)
	set(SPIRV_TOOLS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/SPIRV-Tools)
	use_component(${SPIRV_TOOLS_SOURCE_DIR})
	endif()

	if (NOT TARGET spirv-dis)
	# First tell SPIR-V Tools where to find SPIR-V Headers
	set(SPIRV-Headers_SOURCE_DIR ${SPIRV_HEADERS_SOURCE_DIR})

	# Bring in the SPIR-V Tools repository which we'll use for testing
	add_subdirectory(${SPIRV_TOOLS_SOURCE_DIR}
	${CMAKE_CURRENT_BINARY_DIR}/third_party/SPIRV-Tools EXCLUDE_FROM_ALL)
	endif()

	set(CMAKE_POSITION_INDEPENDENT_CODE ON)

	set(SPIRV_TOOLS_BINARY_DIR "$<TARGET_FILE_DIR:spirv-dis>")

	option(ENABLE_CLSPV_OPT "Enable the clspv-opt driver." ON)

	if (NOT DEFINED EXTERNAL_LLVM)
	set(EXTERNAL_LLVM 0)
	endif()
	if (${EXTERNAL_LLVM} EQUAL 1)
	if (NOT DEFINED CLSPV_LLVM_SOURCE_DIR)
	message(FATAL_ERROR "External LLVM requires CLSPV_LLVM_SOURCE_DIR to be specified")
	endif()
	if (NOT DEFINED CLSPV_CLANG_SOURCE_DIR)
	message(FATAL_ERROR "External LLVM requires CLSPV_CLANG_SOURCE_DIR to be specified")
	endif()
	if (NOT DEFINED CLSPV_LLVM_BINARY_DIR)
	message(FATAL_ERROR "External LLVM requires CLSPV_LLVM_BINARY_DIR to be specified")
	endif()
	else()
	# Setup to use the LLVM monorepo.
	if (NOT DEFINED CLSPV_LLVM_SOURCE_DIR)
	set(CLSPV_LLVM_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/llvm)
	endif()

	if (NOT DEFINED CLSPV_CLANG_SOURCE_DIR)
	set(CLSPV_CLANG_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/clang)
	endif()

	use_component(${CLSPV_LLVM_SOURCE_DIR})
	use_component(${CLSPV_CLANG_SOURCE_DIR})

	# Kokoro bots have older toolchains so make that LLVM check a warning.
	option(LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN "" ON)
	set(CLSPV_LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/third_party/llvm)

	# First tell LLVM where to find clang.
	set(LLVM_EXTERNAL_CLANG_SOURCE_DIR ${CLSPV_CLANG_SOURCE_DIR})

	# Tell LLVM not to build any targets.
	set(LLVM_TARGETS_TO_BUILD ""
	CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")

	# Then pull in LLVM for building.
	add_subdirectory(${CLSPV_LLVM_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/third_party/llvm EXCLUDE_FROM_ALL)

	# Ensure clspv and LLVM use the same build options (e.g. -D_FILE_OFFSET_BITS=64).
	list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/third_party/llvm/llvm/cmake/modules/)
	include(HandleLLVMOptions)
	endif()

	set(CLSPV_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})

	set(CLSPV_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include
	${CLSPV_BINARY_DIR}/include
	)

	set(SPIRV_HEADERS_INCLUDE_DIRS
	${SPIRV_HEADERS_SOURCE_DIR}/include/
	)

	set(LLVM_SOURCE_DIR ${CLSPV_LLVM_SOURCE_DIR})
	set(LLVM_BINARY_DIR ${CLSPV_LLVM_BINARY_DIR})
	set(LLVM_INCLUDE_DIRS
	${LLVM_SOURCE_DIR}/include
	${CLSPV_LLVM_BINARY_DIR}/include
	)

	set(CLANG_SOURCE_DIR ${CLSPV_CLANG_SOURCE_DIR})
	set(CLANG_INCLUDE_DIRS
	${CLANG_SOURCE_DIR}/include
	${CLSPV_LLVM_BINARY_DIR}/tools/clang/include
	)

	if(NOT WIN32)
	# Disable RTTI and exceptions (to match LLVM)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions")
	endif()

	if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=unused-variable -Werror=switch")
	elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror-unused-variable -Werror-switch")
	endif()

	# Bring in our cmake folder
	add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/cmake)

	# Bring in our lib folder
	add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/lib)

	# Bring in our tools folder
	add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/tools)

	# Bring in our test folder
	add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/test)


	if(ENABLE_CLSPV_TOOLS_INSTALL)
	install(
	FILES
	${CMAKE_CURRENT_SOURCE_DIR}/include/clspv/AddressSpace.h
	${CMAKE_CURRENT_SOURCE_DIR}/include/clspv/Passes.h
	DESTINATION
	${CMAKE_INSTALL_INCLUDEDIR}/clspv/)
	endif(ENABLE_CLSPV_TOOLS_INSTALL)