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-rw-r--r--passes/opt/opt_rmdff.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc
index d2695b167..24c2d3fa3 100644
--- a/passes/opt/opt_rmdff.cc
+++ b/passes/opt/opt_rmdff.cc
@@ -147,7 +147,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
goto delete_dff;
}
- if (sig_d.is_fully_const() && !sig_r.size() && (!has_init || val_init == sig_d.as_const())) {
+ if (sig_d.is_fully_const() && (!sig_r.size() || val_rv == sig_d.as_const()) && (!has_init || val_init == sig_d.as_const())) {
RTLIL::SigSig conn(sig_q, sig_d);
mod->connect(conn);
goto delete_dff;