From d5d77aac60453694445d1509b51d7514871dbff8 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Sun, 5 Jul 2015 10:37:25 -0500
Subject: set items in dict displays from left to right (closes #24569)

---
 Python/ceval.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

(limited to 'Python/ceval.c')

diff --git a/Python/ceval.c b/Python/ceval.c
index e68ae33bfd7..ac52ad91e21 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2561,22 +2561,25 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
         }
 
         TARGET(BUILD_MAP) {
+            int i;
             PyObject *map = _PyDict_NewPresized((Py_ssize_t)oparg);
             if (map == NULL)
                 goto error;
-            while (--oparg >= 0) {
+            for (i = oparg; i > 0; i--) {
                 int err;
-                PyObject *value = TOP();
-                PyObject *key = SECOND();
-                STACKADJ(-2);
+                PyObject *key = PEEK(2*i);
+                PyObject *value = PEEK(2*i - 1);
                 err = PyDict_SetItem(map, key, value);
-                Py_DECREF(value);
-                Py_DECREF(key);
                 if (err != 0) {
                     Py_DECREF(map);
                     goto error;
                 }
             }
+
+            while (oparg--) {
+                Py_DECREF(POP());
+                Py_DECREF(POP());
+            }
             PUSH(map);
             DISPATCH();
         }
-- 
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