Disable neon bilinear 4x4

Clang adds alignment hints when casting up the loads/stores. Although
this should be safe for most paths, it's causing some crashes. Either
the source of the misalignment needs to be determined and adjusted or
the intrinsics need to be rewritten to avoid using the cast to load the
data.

BUG=817,892

Change-Id: Ia3aa824d6a4cd97e14325ff49dc730b6f85ec7e8

diff --git a/vp8/common/rtcd_defs.pl b/vp8/common/rtcd_defs.pl
index 4b820338ebb4a2ff67191418425ed7df75ba786e..559861b9c665ba6e77b89d3a171d066fec94c711 100644 (file)
--- a/vp8/common/rtcd_defs.pl
+++ b/vp8/common/rtcd_defs.pl
@@ -215,7 +215,7 @@ $vp8_sixtap_predict8x4_media=vp8_sixtap_predict8x4_armv6;
 $vp8_sixtap_predict8x4_dspr2=vp8_sixtap_predict8x4_dspr2;
 
 add_proto qw/void vp8_sixtap_predict4x4/, "unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch";
-# Disable neon while investigating https://code.google.com/p/webm/issues/detail?id=817
+#TODO(johannkoenig): fix the neon version https://code.google.com/p/webm/issues/detail?id=817
 specialize qw/vp8_sixtap_predict4x4 mmx ssse3 media dspr2/;
 $vp8_sixtap_predict4x4_media=vp8_sixtap_predict4x4_armv6;
 $vp8_sixtap_predict4x4_dspr2=vp8_sixtap_predict4x4_dspr2;
@@ -233,7 +233,8 @@ specialize qw/vp8_bilinear_predict8x4 mmx media neon/;
 $vp8_bilinear_predict8x4_media=vp8_bilinear_predict8x4_armv6;
 
 add_proto qw/void vp8_bilinear_predict4x4/, "unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch";
-specialize qw/vp8_bilinear_predict4x4 mmx media neon/;
+#TODO(johannkoenig): fix the neon version https://code.google.com/p/webm/issues/detail?id=892
+specialize qw/vp8_bilinear_predict4x4 mmx media/;
 $vp8_bilinear_predict4x4_media=vp8_bilinear_predict4x4_armv6;
 
 #