cpu_f16c.c 868 B

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  1. #if defined(DETECT_FEATURES) && defined(__INTEL_COMPILER)
  2. /*
  3. * Unlike GCC and CLANG, Intel Compiler exposes all supported intrinsics,
  4. * whether or not the build options for those features are specified.
  5. * Therefore, we must test #definitions of CPU features when option native/host
  6. * is enabled via `--cpu-baseline` or through env var `CFLAGS` otherwise
  7. * the test will be broken and leads to enable all possible features.
  8. */
  9. #ifndef __F16C__
  10. #error "HOST/ARCH doesn't support F16C"
  11. #endif
  12. #endif
  13. #include <emmintrin.h>
  14. #include <immintrin.h>
  15. int main(int argc, char **argv)
  16. {
  17. __m128 a = _mm_cvtph_ps(_mm_loadu_si128((const __m128i*)argv[argc-1]));
  18. __m256 a8 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*)argv[argc-2]));
  19. return (int)(_mm_cvtss_f32(a) + _mm_cvtss_f32(_mm256_castps256_ps128(a8)));
  20. }