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|
|
if (NOT CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|^i[3,9]86$")
|
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|
|
return()
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endif()
|
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|
|
include(CheckCSourceRuns)
|
|
|
|
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|
|
|
|
|
option(ENABLE_SSE "Enable compile-time SSE4.1 support." ON)
|
|
|
|
|
option(ENABLE_AVX "Enable compile-time AVX support." ON)
|
|
|
|
|
option(ENABLE_AVX2 "Enable compile-time AVX2 support." ON)
|
|
|
|
|
|
|
|
|
|
if (ENABLE_SSE)
|
|
|
|
|
#
|
|
|
|
|
# Check compiler for SSE4_1 intrinsics
|
|
|
|
|
#
|
|
|
|
|
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG )
|
|
|
|
|
set(CMAKE_REQUIRED_FLAGS "-msse4.1")
|
|
|
|
|
check_c_source_runs("
|
|
|
|
|
#include <emmintrin.h>
|
|
|
|
|
#include <smmintrin.h>
|
|
|
|
|
|
|
|
|
|
int main()
|
|
|
|
|
{
|
|
|
|
|
__m128i a = _mm_setzero_si128();
|
|
|
|
|
__m128i b = _mm_minpos_epu16(a);
|
|
|
|
|
return 0;
|
|
|
|
|
}"
|
|
|
|
|
HAVE_SSE)
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
if (HAVE_SSE)
|
|
|
|
|
message(STATUS "SSE4.1 is enabled - target CPU must support it")
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
if (ENABLE_AVX)
|
|
|
|
|
|
|
|
|
|
#
|
|
|
|
|
# Check compiler for AVX intrinsics
|
|
|
|
|
#
|
|
|
|
|
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG )
|
|
|
|
|
set(CMAKE_REQUIRED_FLAGS "-mavx")
|
|
|
|
|
check_c_source_runs("
|
|
|
|
|
#include <immintrin.h>
|
|
|
|
|
|
|
|
|
|
int main()
|
|
|
|
|
{
|
|
|
|
|
__m256i a = _mm256_setzero_si256();
|
|
|
|
|
return 0;
|
|
|
|
|
}"
|
|
|
|
|
HAVE_AVX)
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
if (HAVE_AVX)
|
|
|
|
|
message(STATUS "AVX is enabled - target CPU must support it")
|
|
|
|
|
endif()
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
if (ENABLE_AVX2)
|
|
|
|
|
|
|
|
|
|
#
|
|
|
|
|
# Check compiler for AVX intrinsics
|
|
|
|
|
#
|
|
|
|
|
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG )
|
|
|
|
|
set(CMAKE_REQUIRED_FLAGS "-mavx2")
|
|
|
|
|
check_c_source_runs("
|
|
|
|
|
#include <immintrin.h>
|
|
|
|
|
|
|
|
|
|
int main()
|
|
|
|
|
{
|
|
|
|
|
__m256i a = _mm256_setzero_si256();
|
|
|
|
|
__m256i b = _mm256_abs_epi16(a);
|
|
|
|
|
return 0;
|
|
|
|
|
}"
|
|
|
|
|
HAVE_AVX2)
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
if (HAVE_AVX2)
|
|
|
|
|
message(STATUS "AVX2 is enabled - target CPU must support it")
|
|
|
|
|
endif()
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
mark_as_advanced(HAVE_SSE, HAVE_AVX, HAVE_AVX2)
|
