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-rw-r--r--passes/proc/proc_dff.cc4
1 files changed, 0 insertions, 4 deletions
diff --git a/passes/proc/proc_dff.cc b/passes/proc/proc_dff.cc
index 8e5fbe8f..a8aba903 100644
--- a/passes/proc/proc_dff.cc
+++ b/passes/proc/proc_dff.cc
@@ -352,10 +352,6 @@ static void proc_dff(RTLIL::Module *mod, RTLIL::Process *proc, ConstEval &ce)
ce.assign_map.apply(rstval);
ce.assign_map.apply(sig);
- insig.optimize();
- rstval.optimize();
- sig.optimize();
-
if (rstval == sig) {
rstval = RTLIL::SigSpec(RTLIL::State::Sz, sig.size());
sync_level = NULL;