Function vquantize_signed

src/core/NEON/NEAsymm.h:645–661

Quantize a neon vector holding 8 floating point values. * * @param[in] qv Input values to be quantized. * @param[in] qi Quantization information to be used in the computation. * * @return A neon vector holding the singed quantized values */

 * @return A neon vector holding the singed quantized values
 */
inline int8x8_t vquantize_signed(const float32x4x2_t &qv, const UniformQuantizationInfo &qi)
{
    const float       scale     = qi.scale;
    const int         offset    = qi.offset;
    const float32x4_t voffset   = vdupq_n_f32(offset);
    const float32x4_t vinvscale = vdupq_n_f32(1.f / scale);
    const int32x4x4_t rf        = {{
#ifdef __aarch64__
        vcvtnq_s32_f32(vmlaq_f32(voffset, qv.val[0], vinvscale)),
        vcvtnq_s32_f32(vmlaq_f32(voffset, qv.val[1], vinvscale)),
#else  //__aarch64__
        vcvtq_s32_f32(vmlaq_f32(voffset, qv.val[0], vinvscale)),
        vcvtq_s32_f32(vmlaq_f32(voffset, qv.val[1], vinvscale)),
#endif //__aarch64__
    }};
    return vqmovn_s16(vcombine_s16(vqmovn_s32(rf.val[0]), vqmovn_s32(rf.val[1])));
}

inline int32x4x4_t vquantize_internal(const float32x4x4_t &qv, float scale, int32_t offset)
{