[gegl] buffer: add branch hints in GeglTileBackend

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 5bbae48de56f40a2efca89bdd86570387ec167e3
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Jul 31 22:46:35 2021 +0200

    buffer: add branch hints in GeglTileBackend

 gegl/buffer/gegl-tile-backend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gegl/buffer/gegl-tile-backend.c b/gegl/buffer/gegl-tile-backend.c
index 6af67279f..99e935a2e 100644
--- a/gegl/buffer/gegl-tile-backend.c
+++ b/gegl/buffer/gegl-tile-backend.c
@@ -164,7 +164,7 @@ tile_command (GeglTileSource  *source,
 {
   GeglTileBackend *backend = GEGL_TILE_BACKEND (source);
 
-  if (command < _GEGL_TILE_LAST_0_4_8_COMMAND)
+  if (G_LIKELY (command < _GEGL_TILE_LAST_0_4_8_COMMAND))
     return backend->priv->command (source, command, x, y, z, data);
 
   return _gegl_tile_backend_command (backend, command, x, y, z, data);