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Revert "fhdl/tools/group_by_target: remove resort_statements" 

This reverts commit 939f01cee2.
This commit is contained in:
Sebastien Bourdeauducq 2013-07-17 16:49:26 +02:00
parent 9190568685
commit d5d2e64dc3
1 changed files with 9 additions and 4 deletions
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13
migen/fhdl/tools.py
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@ -48,24 +48,29 @@ def list_targets(node):
lister.visit(node) lister.visit(node)
return lister.output_list return lister.output_list
def resort_statements(ol):
return [statement for i, statement in
sorted(ol, key=lambda x: x[0])]
def group_by_targets(sl): def group_by_targets(sl):
groups = [] groups = []
for statement in flat_iteration(sl): for statement_order, statement in enumerate(flat_iteration(sl)):
targets = list_targets(statement) targets = list_targets(statement)
chk_groups = [(targets.isdisjoint(g[0]), g) for g in groups] chk_groups = [(targets.isdisjoint(g[0]), g) for g in groups]
merge_groups = [g for dj, g in chk_groups if not dj] merge_groups = [g for dj, g in chk_groups if not dj]
groups = [g for dj, g in chk_groups if dj] groups = [g for dj, g in chk_groups if dj]
new_group = (set(targets), []) new_group = (set(targets), [(statement_order, statement)])
for g in merge_groups: for g in merge_groups:
new_group[0].update(g[0]) new_group[0].update(g[0])
new_group[1].extend(g[1]) new_group[1].extend(g[1])
new_group[1].append(statement)
groups.append(new_group) groups.append(new_group)
return groups return [(target, resort_statements(stmts))
for target, stmts in groups]
def list_special_ios(f, ins, outs, inouts): def list_special_ios(f, ins, outs, inouts):
r = set() r = set()