From: Thomas Wouters <thomas@python.org>
Date: Wed, 27 Jun 2001 13:09:44 +0000 (+0000)
Subject: Backport Jeremy's checkin 2.244:
X-Git-Tag: v2.1.1c1~56
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7a5b674721161bdc60d375cde69b9372539f9191;p=thirdparty%2FPython%2Fcpython.git

Backport Jeremy's checkin 2.244:

Add a second special case to the inline function call code in eval_code2().

If we have a PyCFunction (builtin) and it is METH_VARARGS only, load
the args and dispatch to call_cfunction() directly.  This provides a
small speedup for perhaps the most common function calls -- builtins.
---

diff --git a/Python/ceval.c b/Python/ceval.c
index b6686b6e1bf8..64dbf983c8aa 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1941,7 +1941,13 @@ eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals,
 		       callable object.
 		    */
 		    if (PyCFunction_Check(func)) {
-			    if (PyCFunction_GET_FLAGS(func) == 0) {
+			    int flags = PyCFunction_GET_FLAGS(func);
+			    if (flags == METH_VARARGS) {
+				    PyObject *callargs;
+				    callargs = load_args(&stack_pointer, na);
+				    x = call_cfunction(func, callargs, NULL);
+				    Py_XDECREF(callargs); 
+			    } else if (flags == 0) {
 				    x = fast_cfunction(func,
 						       &stack_pointer, na);
 			    } else {