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cpu_f16c.c
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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. */ #ifndef __F16C__ #error "HOST/ARCH doesn't support F16C" #endif #endif #include <emmintrin.h> #include <immintrin.h> int main(int argc, char **argv) { __m128 a = _mm_cvtph_ps(_mm_loadu_si128((const __m128i*)argv[argc-1])); __m256 a8 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*)argv[argc-2])); return (int)(_mm_cvtss_f32(a) + _mm_cvtss_f32(_mm256_castps256_ps128(a8))); }
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