libavcodec/vp9dsp.c:1615: error: Uninitialized Value
  The value read from p6 was never initialized.

libavcodec/vp9dsp.c:1615:13: 
1613.             dst[strideb * -1] = (p7 + p6 + p5 + p4 + p3 + p2 + p1 + p0 * 2 +
1614.                                  q0 + q1 + q2 + q3 + q4 + q5 + q6 + 8) >> 4;
1615.             dst[strideb * +0] = (p6 + p5 + p4 + p3 + p2 + p1 + p0 + q0 * 2 +
                  ^
1616.                                  q1 + q2 + q3 + q4 + q5 + q6 + q7 + 8) >> 4;
1617.             dst[strideb * +1] = (p5 + p4 + p3 + p2 + p1 + p0 + q0 + q1 * 2 +
