diff options
Diffstat (limited to 'vp8/common/reconintra4x4.c')
| -rw-r--r-- | vp8/common/reconintra4x4.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/vp8/common/reconintra4x4.c b/vp8/common/reconintra4x4.c index 7852cf9da..64d33a287 100644 --- a/vp8/common/reconintra4x4.c +++ b/vp8/common/reconintra4x4.c @@ -40,7 +40,15 @@ void vp8_intra4x4_predict(unsigned char *above, unsigned char *yleft, int left_stride, B_PREDICTION_MODE b_mode, unsigned char *dst, int dst_stride, unsigned char top_left) { - unsigned char Aboveb[12], *Above = Aboveb + 4; +/* Power PC implementation uses "vec_vsx_ld" to read 16 bytes from + Above (aka, Aboveb + 4). Play it safe by reserving enough stack + space here. Similary for "Left". */ +#if HAVE_VSX + unsigned char Aboveb[20]; +#else + unsigned char Aboveb[12]; +#endif + unsigned char *Above = Aboveb + 4; #if HAVE_NEON // Neon intrinsics are unable to load 32 bits, or 4 8 bit values. Instead, it // over reads but does not use the extra 4 values. @@ -50,6 +58,8 @@ void vp8_intra4x4_predict(unsigned char *above, unsigned char *yleft, // indeed read, they are not used. vp8_zero_array(Left, 8); #endif // VPX_WITH_ASAN +#elif HAVE_VSX + unsigned char Left[16]; #else unsigned char Left[4]; #endif // HAVE_NEON |