From ff79b92e73999606b1e8a6585368098d93fba3ce Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <raymond.hettinger@gmail.com>
Date: Thu, 18 Jan 2018 12:32:50 -0800
Subject: [PATCH] Removed unnecesssary bit inversion which doesn't improve
 dispersion statistics

---
 Objects/setobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Objects/setobject.c b/Objects/setobject.c
index 4bc1020d56f77a..47db6b245ca63c 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -795,7 +795,7 @@ frozenset_hash(PyObject *self)
     hash ^= ((Py_uhash_t)PySet_GET_SIZE(self) + 1) * 1927868237UL;
 
     /* Disperse patterns arising in nested frozensets */
-    hash ^= (hash >> 11) ^ (~hash >> 25);
+    hash ^= (hash >> 11) ^ (hash >> 25);
     hash = hash * 69069U + 907133923UL;
 
     /* -1 is reserved as an error code */