Add fenc prefetching to adaptive quant

Many fewer cache misses, faster adaptive quant.

diff --git a/encoder/ratecontrol.c b/encoder/ratecontrol.c
index 67b64f40e37e31c90989fa5230b7e3c2a2a02b28..44c276d4636dc4d0b40af2ba77af046461b341e6 100644 (file)
--- a/encoder/ratecontrol.c
+++ b/encoder/ratecontrol.c
@@ -247,6 +247,7 @@ static NOINLINE uint32_t x264_ac_energy_mb( x264_t *h, int mb_x, int mb_y, x264_
      * function and make sure that its always called before the float math.  Noinline makes
      * sure no reordering goes on. */
     uint32_t var;
+    x264_prefetch_fenc( h, frame, mb_x, mb_y );
     if( h->mb.b_adaptive_mbaff )
     {
         /* We don't know the super-MB mode we're going to pick yet, so