Merge commit 'e99ecda5'

* commit 'e99ecda5':
  checkasm: add vp9 MC tests.
  vp9mc/x86: sse2 MC assembly.
  vp9mc/x86: add AVX and AVX2 MC
  vp9mc/x86: rename ff_* to ff_vp9_*
  vp9mc/x86: rename ff_avg[48]_sse to ff_avg[48]_mmxext
  vp9mc/x86: simplify a few inits.
  vp9mc/x86: add 16px functions (64bit only).

Noop (aside from a formatting comment in vp9mc.asm). We already have all
of this. We should consider making a final diff between the two projects
when the dust comes down.
Merged-by: Clément Bœsch <u@pkh.me>

libavcodec/x86/vp9mc.asm

@@ -440,9 +440,8 @@ cglobal vp9_%1_8tap_1d_v_ %+ %%px %+ _8, 4, 7, 11, dst, dstride, src, sstride, f
     mova       m10, [filteryq+96]
 %endif
 .loop:
-    ; FIXME maybe reuse loads from previous rows, or just
-    ; more generally unroll this to prevent multiple loads of
-    ; the same data?
+    ; FIXME maybe reuse loads from previous rows, or just more generally
+    ; unroll this to prevent multiple loads of the same data?
     movh        m0, [srcq]
     movh        m1, [srcq+sstrideq]
     movh        m2, [srcq+sstrideq*2]