blame: micro-optimize cmp_suspect()

The commit structures are guaranteed their uniqueness by the object
layer, so we can check their address and see if they are the same
without going down to the object sha1 level.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/builtin-blame.c b/builtin-blame.c
index b51cdc71faeca467cd3a965db0ff84d1f087076d..104521e673e37cc9d2c9a7f54dae5b3d4d957ea5 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -182,9 +182,8 @@ struct scoreboard {
 
 static int cmp_suspect(struct origin *a, struct origin *b)
 {
-       int cmp = hashcmp(a->commit->object.sha1, b->commit->object.sha1);
-       if (cmp)
-               return cmp;
+       if (a->commit != b->commit)
+               return 1;
        return strcmp(a->path, b->path);
 }