From 7d2fca291d0344580a8e1f9d0331fb7a47139387 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Tue, 17 Nov 2015 01:30:19 +0300
Subject: [PATCH] compiler.iodelay: add missing import.

---
 artiq/compiler/iodelay.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/artiq/compiler/iodelay.py b/artiq/compiler/iodelay.py
index 44b447325..3941ea22e 100644
--- a/artiq/compiler/iodelay.py
+++ b/artiq/compiler/iodelay.py
@@ -4,6 +4,8 @@ the statically inferred RTIO delay arising from executing
 a function.
 """
 
+from functools import reduce
+
 class Expr:
     def __add__(lhs, rhs):
         assert isinstance(rhs, Expr)