From ddc9c3423f37b0234bcc40339f2bcd567c2d7276 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sat, 15 Nov 2014 14:50:26 -0700
Subject: [PATCH] transforms/interleave: handle 'at'

---
 artiq/transforms/interleave.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/artiq/transforms/interleave.py b/artiq/transforms/interleave.py
index 917ff0c86..90233462e 100644
--- a/artiq/transforms/interleave.py
+++ b/artiq/transforms/interleave.py
@@ -34,6 +34,8 @@ def _get_duration(stmt):
             except NotConstant:
                 da = -1
             return da
+        elif name == "at":
+            return -1
         else:
             return 0
     else: