shithub: libvpx

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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

--- a/vp8/common/rtcd_defs.pl

+++ b/vp8/common/rtcd_defs.pl

@@ -215,7 +215,7 @@

 $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 @@

 $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;

 #