Edit: cpu_asimdfhm.c
#ifdef _MSC_VER #include <Intrin.h> #endif #include <arm_neon.h> int main(int argc, char **argv) { float16_t *src = (float16_t*)argv[argc-1]; float *src2 = (float*)argv[argc-2]; float16x8_t vhp = vdupq_n_f16(src[0]); float16x4_t vlhp = vdup_n_f16(src[1]); float32x4_t vf = vdupq_n_f32(src2[0]); float32x2_t vlf = vdup_n_f32(src2[1]); int ret = (int)vget_lane_f32(vfmlal_low_f16(vlf, vlhp, vlhp), 0); ret += (int)vgetq_lane_f32(vfmlslq_high_f16(vf, vhp, vhp), 0); return ret; }
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