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disable vp9_highbd_iht{4x4_16,8x8_64}_add_neon

these causes test vector failures

BUG=webm:1403

Change-Id: I08218f0bf26651eb367ece4feec6d704e0189bd8

--- a/test/dct_test.cc

+++ b/test/dct_test.cc

@@ -629,10 +629,14 @@

 static const FuncInfo ht_neon_func_info[] = {

 #if CONFIG_VP9_HIGHBITDEPTH

+// TODO(linfengz): reenable these functions once test vector failures are

+// addressed.

+#if 0

   { &vp9_highbd_fht4x4_c, &highbd_iht_wrapper<vp9_highbd_iht4x4_16_add_neon>, 4,

     2 },

   { &vp9_highbd_fht8x8_c, &highbd_iht_wrapper<vp9_highbd_iht8x8_64_add_neon>, 8,

     2 },

+#endif

 #endif

   { &vp9_fht4x4_c, &iht_wrapper<vp9_iht4x4_16_add_neon>, 4, 1 },

 // TODO(linfengz): reenable these functions once test vector failures are

--- a/vp9/common/vp9_rtcd_defs.pl

+++ b/vp9/common/vp9_rtcd_defs.pl

@@ -103,8 +103,8 @@

   add_proto qw/void vp9_highbd_iht16x16_256_add/, "const tran_low_t *input, uint16_t *output, int pitch, int tx_type, int bd";

   if (vpx_config("CONFIG_EMULATE_HARDWARE") ne "yes") {

-    specialize qw/vp9_highbd_iht4x4_16_add neon sse4_1/;

-    specialize qw/vp9_highbd_iht8x8_64_add neon sse4_1/;

+    specialize qw/vp9_highbd_iht4x4_16_add sse4_1/;

+    specialize qw/vp9_highbd_iht8x8_64_add sse4_1/;

     specialize qw/vp9_highbd_iht16x16_256_add sse4_1/;

   }

 }