[pypy-commit] pypy default: fix hashing of float tuples

[cfbolz]

Author: Carl Friedrich Bolz <cfbolz at gmx.de>
Branch: 
Changeset: r92094:5c090931a660
Date: 2017-08-05 22:50 +0200
http://bitbucket.org/pypy/pypy/changeset/5c090931a660/

Log:	fix hashing of float tuples

diff --git a/pypy/objspace/std/specialisedtupleobject.py b/pypy/objspace/std/specialisedtupleobject.py
--- a/pypy/objspace/std/specialisedtupleobject.py
+++ b/pypy/objspace/std/specialisedtupleobject.py
@@ -80,8 +80,9 @@
                     # integer & other less frequent cases
                     from pypy.objspace.std.floatobject import _hash_float
                     y = _hash_float(space, value)
+                    y -= (y == -1)
                 else:
-                    y = compute_hash(value)
+                    assert 0, "unreachable"
                 x = (x ^ y) * mult
                 z -= 1
                 mult += 82520 + z + z
diff --git a/pypy/objspace/std/test/test_specialisedtupleobject.py b/pypy/objspace/std/test/test_specialisedtupleobject.py
--- a/pypy/objspace/std/test/test_specialisedtupleobject.py
+++ b/pypy/objspace/std/test/test_specialisedtupleobject.py
@@ -38,6 +38,7 @@
                                   self.space.hash(S_w_tuple)))
 
         hash_test([-1, -1])
+        hash_test([-1.0, -1.0])
         hash_test([1, 2])
         hash_test([1.5, 2.8])
         hash_test([1.0, 2.0])