Backport c952f3d122ae: Tweak the deque struct by moving the least used fields

(maxlen and weakref) to the end.

diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index b0fa23dfa1877836ac8417833d597e56eef037b5..dc31cbc9b0e744f583b2041e2def27f4160acb4e 100644 (file)
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -99,8 +99,8 @@ typedef struct {
     Py_ssize_t leftindex;       /* in range(BLOCKLEN) */
     Py_ssize_t rightindex;      /* in range(BLOCKLEN) */
     Py_ssize_t len;
-    Py_ssize_t maxlen;
     long state;         /* incremented whenever the indices move */
+    Py_ssize_t maxlen;
     PyObject *weakreflist; /* List of weak references */
 } dequeobject;