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100 lines
2.3 KiB
CMake
100 lines
2.3 KiB
CMake
# https://software.intel.com/sites/landingpage/IntrinsicsGuide/
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include (CheckCXXSourceCompiles)
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include (CMakePushCheckState)
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cmake_push_check_state ()
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# gcc -dM -E -mno-sse2 - < /dev/null | sort > gcc-dump-nosse2
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# gcc -dM -E -msse2 - < /dev/null | sort > gcc-dump-sse2
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#define __SSE2__ 1
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#define __SSE2_MATH__ 1
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# gcc -dM -E -msse4.1 - < /dev/null | sort > gcc-dump-sse41
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#define __SSE4_1__ 1
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set (TEST_FLAG "-msse4.1")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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#include <smmintrin.h>
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int main() {
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auto a = _mm_insert_epi8(__m128i(), 0, 0);
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(void)a;
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return 0;
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}
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" HAVE_SSE41)
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if (HAVE_SSE41)
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set (COMPILER_FLAGS "${COMPILER_FLAGS} ${TEST_FLAG}")
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endif ()
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# gcc -dM -E -msse4.2 - < /dev/null | sort > gcc-dump-sse42
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#define __SSE4_2__ 1
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set (TEST_FLAG "-msse4.2")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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#include <nmmintrin.h>
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int main() {
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auto a = _mm_crc32_u64(0, 0);
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(void)a;
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return 0;
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}
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" HAVE_SSE42)
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if (HAVE_SSE42)
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set (COMPILER_FLAGS "${COMPILER_FLAGS} ${TEST_FLAG}")
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endif ()
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set (TEST_FLAG "-mssse3")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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#include <tmmintrin.h>
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int main() {
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__m64 a = _mm_abs_pi8(__m64());
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(void)a;
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return 0;
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}
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" HAVE_SSSE3)
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set (TEST_FLAG "-mavx")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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#include <immintrin.h>
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int main() {
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auto a = _mm256_insert_epi8(__m256i(), 0, 0);
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(void)a;
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return 0;
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}
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" HAVE_AVX)
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set (TEST_FLAG "-mavx2")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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#include <immintrin.h>
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int main() {
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auto a = _mm256_add_epi16(__m256i(), __m256i());
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(void)a;
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return 0;
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}
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" HAVE_AVX2)
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# gcc -dM -E -mpopcnt - < /dev/null | sort > gcc-dump-popcnt
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#define __POPCNT__ 1
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set (TEST_FLAG "-mpopcnt")
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set (CMAKE_REQUIRED_FLAGS "${TEST_FLAG} -O0")
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check_cxx_source_compiles("
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int main() {
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auto a = __builtin_popcountll(0);
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(void)a;
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return 0;
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}
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" HAVE_POPCNT)
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if (HAVE_POPCNT AND NOT ARCH_AARCH64)
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set (COMPILER_FLAGS "${COMPILER_FLAGS} ${TEST_FLAG}")
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endif ()
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cmake_pop_check_state ()
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