From: Benjamin Peterson <benjamin@python.org>
Date: Tue, 23 Dec 2008 20:09:28 +0000 (+0000)
Subject: use a global variable, so the compiler doesn't optimize the assignment out
X-Git-Tag: v2.7a1~2503
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6a53b5c5242759ef9c1411a770073c25e9cc4c4;p=thirdparty%2FPython%2Fcpython.git

use a global variable, so the compiler doesn't optimize the assignment out
---

diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 145d5b62918b..4e81d63615d9 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -474,6 +474,8 @@ test_k_code(PyObject *self)
 
 #ifdef Py_USING_UNICODE
 
+volatile int x;
+
 /* Test the u and u# codes for PyArg_ParseTuple. May leak memory in case
    of an error.
 */
@@ -486,8 +488,7 @@ test_u_code(PyObject *self)
 
 	/* issue4122: Undefined reference to _Py_ascii_whitespace on Windows */
 	/* Just use the macro and check that it compiles */
-	int x = Py_UNICODE_ISSPACE(25);
-	x = x;
+	x = Py_UNICODE_ISSPACE(25);
 
         tuple = PyTuple_New(1);
         if (tuple == NULL)