Re: [ANNOUNCE] Git v2.19.0-rc0

In my testing, I've had the best luck with this change:

diff --git a/cache.h b/cache.h
index b1fd3d58ab..6c8b51c390 100644
--- a/cache.h
+++ b/cache.h

@@ -1023,7 +1023,14 @@ extern const struct object_id null_oid;

 static inline int hashcmp(const unsigned char *sha1, const unsigned char
*sha2)
 {
-       return memcmp(sha1, sha2, the_hash_algo->rawsz);
+       switch (the_hash_algo->rawsz) {
+               case 20:
+                       return memcmp(sha1, sha2, 20);
+               case 32:
+                       return memcmp(sha1, sha2, 32);
+               default:
+                       assert(0);
+       }
 }

The fact that '20' and '32' are constants here may be helpful to the
compiler. Can someone else test the perf?