Optimize negative indexing.

1e0af779 · Robert Bradshaw · 8145cba6 · 1e0af779
Commit 1e0af779 authored Feb 27, 2009 by Robert Bradshaw
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Cython/Compiler/ExprNodes.py Cython/Compiler/ExprNodes.py +2 -2

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--- a/Cython/Compiler/ExprNodes.py
+++ b/Cython/Compiler/ExprNodes.py
@@ -5418,8 +5418,8 @@ static INLINE PyObject *__Pyx_GetItemInt_%(type)s(PyObject *o, Py_ssize_t i, int
            Py_INCREF(r);
            return r;
        }
-        else if ((i == -1) & likely(Py%(type)s_GET_SIZE(o) > 0)) {
+        else if ((-Py%(type)s_GET_SIZE(o) <= i) & (i < 0)) {
-            PyObject *r = Py%(type)s_GET_ITEM(o, Py%(type)s_GET_SIZE(o) - 1);
+            PyObject *r = Py%(type)s_GET_ITEM(o, Py%(type)s_GET_SIZE(o) + i);
            Py_INCREF(r);
            return r;
        }