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-rw-r--r--techlibs/greenpak4/synth_greenpak4.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/greenpak4/synth_greenpak4.cc b/techlibs/greenpak4/synth_greenpak4.cc
index eeb001b46..3222be2e3 100644
--- a/techlibs/greenpak4/synth_greenpak4.cc
+++ b/techlibs/greenpak4/synth_greenpak4.cc
@@ -165,7 +165,7 @@ struct SynthGreenPAK4Pass : public ScriptPass
run("dfflibmap -prepare -liberty +/greenpak4/gp_dff.lib");
run("opt -fast");
if (retime || help_mode)
- run("abc -dff", "(only if -retime)");
+ run("abc -dff -D 1", "(only if -retime)");
}
if (check_label("map_luts"))