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## ======================================================================== ##
## Copyright 2017 Kitware, Inc. ##
## ##
## 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. ##
## ======================================================================== ##
SET(CHECK_ISA_DIR ${CMAKE_CURRENT_LIST_DIR})
FUNCTION(CHECK_ISA_DEFAULT OUTVAR)
SET(ISA_DEFAULT_BIN ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/check_isa_default.bin)
SET(SRC ${CHECK_ISA_DIR}/check_isa.cpp)
TRY_COMPILE(ISA_DEFAULT_COMPILE
${CMAKE_BINARY_DIR}
${SRC}
COPY_FILE ${ISA_DEFAULT_BIN}
)
IF(NOT ISA_DEFAULT_COMPILE)
SET(ISA_DEFAULT "SSE2")
RETURN()
ENDIF()
FILE(STRINGS ${ISA_DEFAULT_BIN} ISA_DEFAULT REGEX "^ISA:")
STRING(REPLACE "ISA:" "" ISA_DEFAULT "${ISA_DEFAULT}")
SET(${OUTVAR} ${ISA_DEFAULT} PARENT_SCOPE)
ENDFUNCTION()
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