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# SoX Resampler Library Copyright (c) 2007-16 robs@users.sourceforge.net
# Licence for this file: LGPL v2.1 See LICENCE for details.
# - Finds SIMD64 support
#
# The following variables are set:
# SIMD64_C_FLAGS - flags to add to the C compiler for this package.
# SIMD64_FOUND - true if support for this package is found.
if (DEFINED SIMD64_C_FLAGS OR CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
set (TRIAL_C_FLAGS)
else ()
set (TRIAL_C_FLAGS
"-mavx" # Gcc
"/arch:AVX" # MSVC
)
set (TEST_C_SOURCE "
#ifndef __AVX__
#error
#endif
#include <immintrin.h>
int main() {return 0;}
")
endif ()
include (FindCFlags)
FindCFlags ("SIMD64" "FLOAT-64 (double-precision) SIMD vectorization"
"${TRIAL_C_FLAGS}" "${TEST_C_SOURCE}")
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