name : cpu_neon_vfpv4.c #ifdef _MSC_VER #include <Intrin.h> #endif #include <arm_neon.h> int main(int argc, char **argv) { float *src = (float*)argv[argc-1]; float32x4_t v1 = vdupq_n_f32(src[0]); float32x4_t v2 = vdupq_n_f32(src[1]); float32x4_t v3 = vdupq_n_f32(src[2]); int ret = (int)vgetq_lane_f32(vfmaq_f32(v1, v2, v3), 0); #ifdef __aarch64__ double *src2 = (double*)argv[argc-2]; float64x2_t vd1 = vdupq_n_f64(src2[0]); float64x2_t vd2 = vdupq_n_f64(src2[1]); float64x2_t vd3 = vdupq_n_f64(src2[2]); ret += (int)vgetq_lane_f64(vfmaq_f64(vd1, vd2, vd3), 0); #endif return ret; }