From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Thu, 22 Oct 2015 09:14:51 +0000 (+0800)
Subject: fhdl/namer: fix object aliasing bug
X-Git-Tag: 24jan2021_ls180~2099^2~3^2~6
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=db62efc9c800f378f0017335fccdff87a46a0309;p=litex.git

fhdl/namer: fix object aliasing bug
---

diff --git a/migen/fhdl/namer.py b/migen/fhdl/namer.py
index e6c18cb0..8e0f450d 100644
--- a/migen/fhdl/namer.py
+++ b/migen/fhdl/namer.py
@@ -182,9 +182,10 @@ def _build_signal_groups(signals):
             related_list.insert(0, cur_signal)
             cur_signal = cur_signal.related
         # add to groups
-        r += [set()]*(len(related_list) - len(r))
-        for target_set, source_set in zip(r, related_list):
-            target_set.add(source_set)
+        for _ in range(len(related_list) - len(r)):
+            r.append(set())
+        for target_set, source_signal in zip(r, related_list):
+            target_set.add(source_signal)
     # with the algorithm above and a list of all signals,
     # a signal appears in all groups of a lower number than its.
     # make signals appear only in their group of highest number.