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-rw-r--r--techlibs/ice40/synth_ice40.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index 80bd05a84..b8aedaadf 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -345,6 +345,7 @@ struct SynthIce40Pass : public ScriptPass
if (min_ce_use >= 0) {
run("opt_merge");
run(stringf("dff2dffe -unmap-mince %d", min_ce_use));
+ run("simplemap t:$dff");
}
run("techmap -D NO_LUT -D NO_ADDER -map +/ice40/cells_map.v");
run("opt_expr -mux_undef");