From: Raymond Hettinger <rhettinger@users.noreply.github.com>
Date: Thu, 18 Jan 2018 21:23:27 +0000 (-0800)
Subject: Removed unnecesssary bit inversion which doesn't improve dispersion statistics (... 
X-Git-Tag: v3.7.0b1~154
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fa7880604191f81cbdddc191216f7b1e39a74d8d;p=thirdparty%2FPython%2Fcpython.git

Removed unnecesssary bit inversion which doesn't improve dispersion statistics (#5235)
---

diff --git a/Objects/setobject.c b/Objects/setobject.c
index 4bc1020d56f7..47db6b245ca6 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 */