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-rw-r--r--techlibs/gowin/synth_gowin.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index 6cf058f29..5acc096a3 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -209,7 +209,7 @@ struct SynthGowinPass : public ScriptPass
run("techmap -map +/techmap.v -map +/gowin/arith_map.v");
run("techmap -map +/techmap.v");
if (retime || help_mode)
- run("abc -dff", "(only if -retime)");
+ run("abc -dff -D 1", "(only if -retime)");
run("splitnets");
}