From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Sat, 7 Feb 2009 00:43:03 +0000 (-0800)
Subject: Optimize None -> bool to avoid branching
X-Git-Tag: 0.11.rc~92
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=9889fe7b77e77d7c408e785bdb2a15c3bcdb4465;p=cython.git

Optimize None -> bool to avoid branching
---

diff --git a/Cython/Compiler/PyrexTypes.py b/Cython/Compiler/PyrexTypes.py
index 8a024f03..7f11935c 100644
--- a/Cython/Compiler/PyrexTypes.py
+++ b/Cython/Compiler/PyrexTypes.py
@@ -1398,8 +1398,7 @@ static INLINE Py_ssize_t __pyx_PyIndex_AsSsize_t(PyObject* b) {
 
 static INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
    if (x == Py_True) return 1;
-   else if (x == Py_False) return 0;
-   else if (x == Py_None) return 0;
+   else if ((x == Py_False) | (x == Py_None)) return 0;
    else return PyObject_IsTrue(x);
 }