From: Jeremy Hylton <jeremy@alum.mit.edu>
Date: Fri, 18 May 2001 20:53:14 +0000 (+0000)
Subject: Add a second special case to the inline function call code in eval_code2().
X-Git-Tag: v2.2a3~1754
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=da20fce9c329acd8cf06162bd22be6e9b1fc1bc8;p=thirdparty%2FPython%2Fcpython.git

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 0cdd0199b965..e407de49a953 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1969,7 +1969,13 @@ 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 {