Viewing file:  cpu_avx512_skx.c (1010 B) -rw-r--r--
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#if defined(DETECT_FEATURES) && defined(__INTEL_COMPILER)
/*
* Unlike GCC and CLANG, Intel Compiler exposes all supported intrinsics,
* whether or not the build options for those features are specified.
* Therefore, we must test #definitions of CPU features when option native/host
* is enabled via `--cpu-baseline` or through env var `CFLAGS` otherwise
* the test will be broken and leads to enable all possible features.
*/
#if !defined(__AVX512VL__) || !defined(__AVX512BW__) || !defined(__AVX512DQ__)
#error "HOST/ARCH doesn't support SkyLake AVX512 features"
#endif
#endif
#include <immintrin.h>
int main(int argc, char **argv)
{
__m512i aa = _mm512_abs_epi32(_mm512_loadu_si512((const __m512i*)argv[argc-1]));
/* VL */
__m256i a = _mm256_abs_epi64(_mm512_extracti64x4_epi64(aa, 1));
/* DQ */
__m512i b = _mm512_broadcast_i32x8(a);
/* BW */
b = _mm512_abs_epi16(b);
return _mm_cvtsi128_si32(_mm512_castsi512_si128(b));
}
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