commit fd05fb0c21e253b4d6f92d7e0b752850ff8ab188
author Peter de Rivaz <peter.derivaz@gmail.com> Thu Dec 11 15:54:23 2014
committer Peter de Rivaz <peter.derivaz@gmail.com> Thu Dec 11 15:54:23 2014
tree b79a991c80c39e94d11caff60e6d5345138352d3
parent 39da55a49f6d35d63cdbbca86e425ac8de79109c

Corrected optimization of 8x8 DCT code

The 8x8 DCT uses a fast version whenever possible.
There was a mistake in the checking code which
meant sometimes the fast version was used when it
was not safe to do so.

Change-Id: I154c84c9e2d836764768a11082947ca30f4b5ab7

vp9/common/x86/vp9_idct_intrin_sse2.c

diff --git a/vp9/common/x86/vp9_idct_intrin_sse2.c b/vp9/common/x86/vp9_idct_intrin_sse2.c
index c5406b4..45fd95b 100644
--- a/vp9/common/x86/vp9_idct_intrin_sse2.c
+++ b/vp9/common/x86/vp9_idct_intrin_sse2.c
@@ -4260,7 +4260,7 @@
     // N.B. Only first 4 cols contain non-zero coeffs
     max_input = _mm_max_epi16(inptr[0], inptr[1]);
     min_input = _mm_min_epi16(inptr[0], inptr[1]);
-    for (i = 2; i < 4; i++) {
+    for (i = 2; i < 8; i++) {
       max_input = _mm_max_epi16(max_input, inptr[i]);
       min_input = _mm_min_epi16(min_input, inptr[i]);
     }