Mercurial > cpython-lru_cache-weakref

diff Lib/test/test_tuple.py @ 78366:2638ce032151 3.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue #8847: Disable COMDAT folding in Windows PGO builds. Analysis by Victor Stinner. Patch by Stefan Krah.
author Martin v. Löwis <martin@v.loewis.de>
date Wed, 01 Aug 2012 10:32:11 +0200
parents f9f782f2369e
children d3afe5d8a4da
line wrap: on
line diff
--- a/Lib/test/test_tuple.py	Tue Jul 31 19:48:00 2012 +0300
+++ b/Lib/test/test_tuple.py	Wed Aug 01 10:32:11 2012 +0200
@@ -164,6 +164,14 @@
         check(10)       # check our checking code
         check(1000000)
 
+    def test_no_comdat_folding(self):
+        # Issue 8847: In the PGO build, the MSVC linker's COMDAT folding
+        # optimization causes failures in code that relies on distinct
+        # function addresses.
+        class T(tuple): pass
+        with self.assertRaises(TypeError):
+            [3,] + T((1,2))
+
 def test_main():
     support.run_unittest(TupleTest)