commit 3f5226246517be2f28d4f23d6e4c202047915f83
author Damien George <damien.p.george@gmail.com> Tue Jun 03 13:40:16 2014 +0100
committer Damien George <damien.p.george@gmail.com> Tue Jun 03 13:40:16 2014 +0100
tree 2b41b45e06e2b6dd89af217c813021bbdcb1c818
parent 65ec33200ada958066bea0914120045acdb5e410

py: Allow tail call optimisation in mp_call_function_n_kw.

This saves 4 words of stack space per Python call.

py/runtime.c

diff --git a/py/runtime.c b/py/runtime.c
index 27a5ed5..f13cc1d 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -526,10 +526,7 @@
 
     // do the call
     if (type->call != NULL) {
-        mp_obj_t res = type->call(fun_in, n_args, n_kw, args);
-        if (res != NULL) {
-            return res;
-        }
+        return type->call(fun_in, n_args, n_kw, args);
     }
 
     nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not callable", mp_obj_get_type_str(fun_in)));