27 lines
1010 B
C
27 lines
1010 B
C
#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));
|
|
}
|