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fhdl/namer: fix object aliasing bug

This commit is contained in:
Sebastien Bourdeauducq 2015-10-22 17:14:51 +08:00
parent 2bbcc218f3
commit db62efc9c8
1 changed files with 4 additions and 3 deletions
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7
migen/fhdl/namer.py
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@ -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.