UPDATE_2PIXELS    506 third_party/libwebp/dsp/dec_sse2.c     UPDATE_2PIXELS(*p2, *q2, a2_lo, a2_hi);
UPDATE_2PIXELS    507 third_party/libwebp/dsp/dec_sse2.c     UPDATE_2PIXELS(*p1, *q1, a1_lo, a1_hi);
UPDATE_2PIXELS    508 third_party/libwebp/dsp/dec_sse2.c     UPDATE_2PIXELS(*p0, *q0, a0_lo, a0_hi);