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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 b945889fe..ea038d325 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -417,6 +417,7 @@ struct SynthIce40Pass : public ScriptPass
run("hierarchy -check");
run("stat");
run("check -noinit");
+ run("blackbox =A:whitebox");
}
if (check_label("blif"))