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-rw-r--r--techlibs/coolrunner2/synth_coolrunner2.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/coolrunner2/synth_coolrunner2.cc b/techlibs/coolrunner2/synth_coolrunner2.cc
index 014c68622..d73241fa8 100644
--- a/techlibs/coolrunner2/synth_coolrunner2.cc
+++ b/techlibs/coolrunner2/synth_coolrunner2.cc
@@ -161,7 +161,7 @@ struct SynthCoolrunner2Pass : public ScriptPass
if (check_label("map_pla"))
{
- run("abc -sop -I 40 -P 56");
+ run("abc -sop -I 40 -P 56" + string(retime ? " -dff -D 1" : ""));
run("clean");
}