-always_inline u32
-u16x8_zero_byte_mask (u16x8 input)
-{
- u8x16 vall_one = vdupq_n_u8 (0x0);
- u8x16 res_values = { 0x01, 0x02, 0x04, 0x08,
- 0x10, 0x20, 0x40, 0x80,
- 0x01, 0x02, 0x04, 0x08,
- 0x10, 0x20, 0x40, 0x80
- };
-
- /* input --> [0x80, 0x40, 0x01, 0xf0, ... ] */
- u8x16 test_result =
- vreinterpretq_u8_u16 (vceqq_u16 (input, vreinterpretq_u16_u8 (vall_one)));
- u8x16 before_merge = vminq_u8 (test_result, res_values);
- /*before_merge--> [0x80, 0x00, 0x00, 0x10, ... ] */
- /* u8x16 --> [a,b,c,d, e,f,g,h, i,j,k,l, m,n,o,p] */
- /* pair add until we have 2 uint64_t */
- u16x8 merge1 = vpaddlq_u8 (before_merge);
- /* u16x8--> [a+b,c+d, e+f,g+h, i+j,k+l, m+n,o+p] */
- u32x4 merge2 = vpaddlq_u16 (merge1);
- /* u32x4--> [a+b+c+d, e+f+g+h, i+j+k+l, m+n+o+p] */
- u64x2 merge3 = vpaddlq_u32 (merge2);
- /* u64x2--> [a+b+c+d+e+f+g+h, i+j+k+l+m+n+o+p] */
- return (u32) (vgetq_lane_u64 (merge3, 1) << 8) + vgetq_lane_u64 (merge3, 0);
-}
-
-always_inline u32
-u8x16_zero_byte_mask (u8x16 input)
-{
- return u16x8_zero_byte_mask ((u16x8) input);
-}
-
-always_inline u32
-u32x4_zero_byte_mask (u32x4 input)
-{
- return u16x8_zero_byte_mask ((u16x8) input);
-}
-
-always_inline u32
-u64x2_zero_byte_mask (u64x2 input)
-{
- return u16x8_zero_byte_mask ((u16x8) input);
-}
-