genlib/fifo: add missing imports

diff --git a/migen/genlib/fifo.py b/migen/genlib/fifo.py
index 5beba08614d1eaa190e95e9025f3cfd1fa33927c..db6ce64dc5a9177f8d1b5b2e8d55983f2213ed91 100644 (file)
--- a/migen/genlib/fifo.py
+++ b/migen/genlib/fifo.py
@@ -1,6 +1,8 @@
 from migen.fhdl.structure import *
 from migen.fhdl.module import Module
 from migen.fhdl.specials import Memory
+from migen.fhdl.bitcontainer import log2_int
+from migen.fhdl.decorators import ClockDomainsRenamer
 from migen.genlib.cdc import NoRetiming, MultiReg, GrayCounter