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-rw-r--r--tests/opt/opt_lut.ys15
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/opt/opt_lut.ys b/tests/opt/opt_lut.ys
new file mode 100644
index 000000000..1c7dc1473
--- /dev/null
+++ b/tests/opt/opt_lut.ys
@@ -0,0 +1,15 @@
+read_verilog opt_lut.v
+synth_ice40
+ice40_unlut
+design -save preopt
+
+opt_lut
+design -stash postopt
+
+design -copy-from preopt -as preopt top
+design -copy-from postopt -as postopt top
+equiv_make preopt postopt equiv
+techmap -map ice40_carry.v
+prep -flatten -top equiv
+equiv_induct
+equiv_status -assert