libvpx: Pull from upstream

source/config/linux/x64/vp9_rtcd.h

Index: source/config/linux/x64/vp9_rtcd.h
===================================================================
--- source/config/linux/x64/vp9_rtcd.h	(revision 269083)
+++ source/config/linux/x64/vp9_rtcd.h	(working copy)
@@ -264,7 +264,8 @@
 RTCD_EXTERN int (*vp9_full_search_sad)(const struct macroblock *x, const struct mv *ref_mv, int sad_per_bit, int distance, const struct vp9_variance_vtable *fn_ptr, const struct mv *center_mv, struct mv *best_mv);
 
 void vp9_fwht4x4_c(const int16_t *input, int16_t *output, int stride);
-#define vp9_fwht4x4 vp9_fwht4x4_c
+void vp9_fwht4x4_mmx(const int16_t *input, int16_t *output, int stride);
+#define vp9_fwht4x4 vp9_fwht4x4_mmx
 
 unsigned int vp9_get_mb_ss_c(const int16_t *);
 unsigned int vp9_get_mb_ss_mmx(const int16_t *);
@@ -319,9 +320,10 @@
 void vp9_idct4x4_1_add_sse2(const int16_t *input, uint8_t *dest, int dest_stride);
 #define vp9_idct4x4_1_add vp9_idct4x4_1_add_sse2
 
-void vp9_idct8x8_10_add_c(const int16_t *input, uint8_t *dest, int dest_stride);
-void vp9_idct8x8_10_add_sse2(const int16_t *input, uint8_t *dest, int dest_stride);
-#define vp9_idct8x8_10_add vp9_idct8x8_10_add_sse2
+void vp9_idct8x8_12_add_c(const int16_t *input, uint8_t *dest, int dest_stride);
+void vp9_idct8x8_12_add_sse2(const int16_t *input, uint8_t *dest, int dest_stride);
+void vp9_idct8x8_12_add_ssse3(const int16_t *input, uint8_t *dest, int dest_stride);
+RTCD_EXTERN void (*vp9_idct8x8_12_add)(const int16_t *input, uint8_t *dest, int dest_stride);
 
 void vp9_idct8x8_1_add_c(const int16_t *input, uint8_t *dest, int dest_stride);
 void vp9_idct8x8_1_add_sse2(const int16_t *input, uint8_t *dest, int dest_stride);
@@ -930,6 +932,8 @@
     if (flags & HAS_SSSE3) vp9_h_predictor_4x4 = vp9_h_predictor_4x4_ssse3;
     vp9_h_predictor_8x8 = vp9_h_predictor_8x8_c;
     if (flags & HAS_SSSE3) vp9_h_predictor_8x8 = vp9_h_predictor_8x8_ssse3;
+    vp9_idct8x8_12_add = vp9_idct8x8_12_add_sse2;
+    if (flags & HAS_SSSE3) vp9_idct8x8_12_add = vp9_idct8x8_12_add_ssse3;
     vp9_idct8x8_64_add = vp9_idct8x8_64_add_sse2;
     if (flags & HAS_SSSE3) vp9_idct8x8_64_add = vp9_idct8x8_64_add_ssse3;
     vp9_quantize_b = vp9_quantize_b_c;