REG64             198 libavcodec/x86/h264_i386.h         : "=&q"(coeff_count), "+"REG64(last), "+"REG64(index), "+&r"(c->low),
REG64             201 libavcodec/x86/h264_i386.h           REG64(sig_off), REG64(last_coeff_ctx_base),