807       signbits |= ((size_t)(temp2 + 1)) << k; \
822   size_t zerobits = 0U, signbits = 0U;  in encode_mcu_AC_refine_prepare()  local
834   bits[1] = signbits;  in encode_mcu_AC_refine_prepare()
836   bits[2] = signbits;  in encode_mcu_AC_refine_prepare()
839   signbits = 0U;  in encode_mcu_AC_refine_prepare()
850   bits[3] = signbits;  in encode_mcu_AC_refine_prepare()
866     signbits >>= idx; \
891       signbits >>= 1; \
903     temp = signbits & 1; /* ((*block)[jpeg_natural_order_start[k]] < 0) ? 0 : 1 */ \
911     signbits >>= 1; \
928   size_t zerobits, signbits;  in encode_mcu_AC_refine()  local
959   signbits = bits[1];  in encode_mcu_AC_refine()
961   signbits = bits[2];  in encode_mcu_AC_refine()
967   signbits = bits[3];  in encode_mcu_AC_refine()
972     signbits >>= idx;  in encode_mcu_AC_refine()