master 85acde2: Make uncache_image slightly more efficient

[Lars Ingebrigtsen]

branch: master
commit 85acde2ab5c2327c8f70ea3c284f26de4a44128b
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Make uncache_image slightly more efficient
    
    * src/image.c (uncache_image): Extremely minor speed-up: Only
    compute the hash once.
---
 src/image.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/image.c b/src/image.c
index 846f2d1..522a4cf 100644
--- a/src/image.c
+++ b/src/image.c
@@ -1633,12 +1633,13 @@ static void
 uncache_image (struct frame *f, Lisp_Object spec)
 {
   struct image *img;
+  EMACS_UINT hash = sxhash (spec);
 
   /* Because the background colors are based on the current face, we
      can have multiple copies of an image with the same spec. We want
      to remove them all to ensure the user doesn't see an old version
      of the image when the face changes.  */
-  while ((img = search_image_cache (f, spec, sxhash (spec), 0, 0, true)))
+  while ((img = search_image_cache (f, spec, hash, 0, 0, true)))
     {
       free_image (f, img);
       /* As display glyphs may still be referring to the image ID, we