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-rw-r--r--passes/opt/opt_rmdff.cc4
1 files changed, 1 insertions, 3 deletions
diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc
index d10cf508f..2abffa2a9 100644
--- a/passes/opt/opt_rmdff.cc
+++ b/passes/opt/opt_rmdff.cc
@@ -385,9 +385,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
// (ii) reset value is same as constant D
// and (a) has no initial value
// (b) initial value same as constant D
- // and (1) has no enable signal
- // (2) enable is always active
- if (sig_d.is_fully_const() && (!sig_r.size() || val_rv == sig_d.as_const()) && (!has_init || val_init == sig_d.as_const()) && (!sig_e.size() || (sig_d.is_fully_undef() && !has_init))) {
+ if (sig_d.is_fully_const() && (!sig_r.size() || val_rv == sig_d.as_const()) && (!has_init || val_init == sig_d.as_const())) {
// Q is permanently D
mod->connect(sig_q, sig_d);
goto delete_dff;