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

rhettinger · web-flow · commit fa7880604191 · 2018-01-18T13:23:27.000-08:00
diff --git 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 */
