libavcodec/vp8dsp.c:80: error: Uninitialized Value
  The value read from tmp[_] was never initialized.

libavcodec/vp8dsp.c:80:9: 
78.     for (i = 0; i < 4; i++) {
79.         t0 = tmp[0*4+i] + tmp[2*4+i];
80.         t1 = tmp[0*4+i] - tmp[2*4+i];
            ^
81.         t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);
82.         t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);

static void vp8_idct_add_c(uint8_t *dst, DCTELEM block[16], int stride)
{
    int i, t0, t1, t2, t3;
    DCTELEM tmp[16];
    for (i = 0; i < 4; i++) {
        t0 = block[0*4+i] + block[2*4+i];
        t1 = block[0*4+i] - block[2*4+i];
        t2 = MUL_35468(block[1*4+i]) - MUL_20091(block[3*4+i]);
        t3 = MUL_20091(block[1*4+i]) + MUL_35468(block[3*4+i]);
        tmp[i*4+0] = t0 + t3;
        tmp[i*4+1] = t1 + t2;
        tmp[i*4+2] = t1 - t2;
        tmp[i*4+3] = t0 - t3;
    }
    for (i = 0; i < 4; i++) {
        t0 = tmp[0*4+i] + tmp[2*4+i];
        t1 = tmp[0*4+i] - tmp[2*4+i];
        t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);
        t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);
        dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
        dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
        dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
        dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
        dst += stride;
    }
}
['static void vp8_idct_add_c(uint8_t *dst, DCTELEM block[16], int stride)\n{\n    int i, t0, t1, t2, t3;\n    DCTELEM tmp[16];\n    for (i = 0; i < 4; i++) {\n        t0 = block[0*4+i] + block[2*4+i];\n        t1 = block[0*4+i] - block[2*4+i];\n        t2 = MUL_35468(block[1*4+i]) - MUL_20091(block[3*4+i]);\n        t3 = MUL_20091(block[1*4+i]) + MUL_35468(block[3*4+i]);\n        tmp[i*4+0] = t0 + t3;\n        tmp[i*4+1] = t1 + t2;\n        tmp[i*4+2] = t1 - t2;\n        tmp[i*4+3] = t0 - t3;\n    }\n    for (i = 0; i < 4; i++) {\n        t0 = tmp[0*4+i] + tmp[2*4+i];\n        t1 = tmp[0*4+i] - tmp[2*4+i];\n        t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);\n        t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);\n        dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));\n        dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));\n        dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));\n        dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));\n        dst += stride;\n    }\n}']