107 lines
3.8 KiB
CMake
107 lines
3.8 KiB
CMake
# Copyright 2021 The Draco Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# 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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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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if(DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_)
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return()
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endif() # DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_
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set(DRACO_CMAKE_DRACO_INTRINSICS_CMAKE_ 1)
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# Returns the compiler flag for the SIMD intrinsics suffix specified by the
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# SUFFIX argument via the variable specified by the VARIABLE argument:
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# draco_get_intrinsics_flag_for_suffix(SUFFIX <suffix> VARIABLE <var name>)
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macro(draco_get_intrinsics_flag_for_suffix)
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unset(intrinsics_SUFFIX)
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unset(intrinsics_VARIABLE)
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unset(optional_args)
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unset(multi_value_args)
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set(single_value_args SUFFIX VARIABLE)
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cmake_parse_arguments(intrinsics "${optional_args}" "${single_value_args}"
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"${multi_value_args}" ${ARGN})
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if(NOT (intrinsics_SUFFIX AND intrinsics_VARIABLE))
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message(FATAL_ERROR "draco_get_intrinsics_flag_for_suffix: SUFFIX and "
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"VARIABLE required.")
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endif()
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if(intrinsics_SUFFIX MATCHES "neon")
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if(NOT MSVC)
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set(${intrinsics_VARIABLE} "${DRACO_NEON_INTRINSICS_FLAG}")
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endif()
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elseif(intrinsics_SUFFIX MATCHES "sse4")
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if(NOT MSVC)
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set(${intrinsics_VARIABLE} "-msse4.1")
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endif()
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else()
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message(FATAL_ERROR "draco_get_intrinsics_flag_for_suffix: Unknown "
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"instrinics suffix: ${intrinsics_SUFFIX}")
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endif()
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if(DRACO_VERBOSE GREATER 1)
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message("draco_get_intrinsics_flag_for_suffix: "
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"suffix:${intrinsics_SUFFIX} flag:${${intrinsics_VARIABLE}}")
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endif()
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endmacro()
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# Processes source files specified by SOURCES and adds intrinsics flags as
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# necessary: draco_process_intrinsics_sources(SOURCES <sources>)
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#
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# Detects requirement for intrinsics flags using source file name suffix.
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# Currently supports only SSE4.1.
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macro(draco_process_intrinsics_sources)
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unset(arg_TARGET)
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unset(arg_SOURCES)
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unset(optional_args)
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set(single_value_args TARGET)
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set(multi_value_args SOURCES)
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cmake_parse_arguments(arg "${optional_args}" "${single_value_args}"
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"${multi_value_args}" ${ARGN})
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if(NOT (arg_TARGET AND arg_SOURCES))
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message(FATAL_ERROR "draco_process_intrinsics_sources: TARGET and "
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"SOURCES required.")
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endif()
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if(DRACO_ENABLE_SSE4_1 AND draco_have_sse4)
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unset(sse4_sources)
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list(APPEND sse4_sources ${arg_SOURCES})
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list(FILTER sse4_sources INCLUDE REGEX "${draco_sse4_source_file_suffix}$")
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if(sse4_sources)
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unset(sse4_flags)
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draco_get_intrinsics_flag_for_suffix(
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SUFFIX ${draco_sse4_source_file_suffix} VARIABLE sse4_flags)
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if(sse4_flags)
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draco_set_compiler_flags_for_sources(SOURCES ${sse4_sources} FLAGS
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${sse4_flags})
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endif()
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endif()
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endif()
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if(DRACO_ENABLE_NEON AND draco_have_neon)
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unset(neon_sources)
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list(APPEND neon_sources ${arg_SOURCES})
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list(FILTER neon_sources INCLUDE REGEX "${draco_neon_source_file_suffix}$")
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if(neon_sources AND DRACO_NEON_INTRINSICS_FLAG)
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unset(neon_flags)
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draco_get_intrinsics_flag_for_suffix(
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SUFFIX ${draco_neon_source_file_suffix} VARIABLE neon_flags)
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if(neon_flags)
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draco_set_compiler_flags_for_sources(SOURCES ${neon_sources} FLAGS
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${neon_flags})
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endif()
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endif()
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endif()
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endmacro()
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