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-rw-r--r--passes/opt/opt_merge.cc8
1 files changed, 6 insertions, 2 deletions
diff --git a/passes/opt/opt_merge.cc b/passes/opt/opt_merge.cc
index 97989d271..07e4dd39f 100644
--- a/passes/opt/opt_merge.cc
+++ b/passes/opt/opt_merge.cc
@@ -280,8 +280,12 @@ struct OptMergeWorker
dff_init_map.set(module);
for (auto &it : module->wires_)
- if (it.second->attributes.count("\\init") != 0)
- dff_init_map.add(it.second, it.second->attributes.at("\\init"));
+ if (it.second->attributes.count("\\init") != 0) {
+ Const initval = it.second->attributes.at("\\init");
+ for (int i = 0; i < GetSize(initval) && i < GetSize(it.second); i++)
+ if (initval[i] == State::S0 || initval[i] == State::S1)
+ dff_init_map.add(SigBit(it.second, i), initval[i]);
+ }
bool did_something = true;
while (did_something)