From c31b17a2e28ac5f70600ee8b27f0befb3a1706be Mon Sep 17 00:00:00 2001
From: "William D. Jones" <thor0505@comcast.net>
Date: Thu, 26 Nov 2020 22:34:46 -0500
Subject: [PATCH] machxo2: Add believed-to-be-correct tribuf test.

---
 tests/arch/machxo2/tribuf.ys | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 tests/arch/machxo2/tribuf.ys

diff --git a/tests/arch/machxo2/tribuf.ys b/tests/arch/machxo2/tribuf.ys
new file mode 100644
index 000000000..7f3cd326e
--- /dev/null
+++ b/tests/arch/machxo2/tribuf.ys
@@ -0,0 +1,9 @@
+read_verilog ../common/tribuf.v
+hierarchy -top tristate
+proc
+flatten
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd tristate # Constrain all select calls below inside the top module
+select -assert-count 3 t:FACADE_IO
+select -assert-none t:FACADE_IO %% t:* %D
-- 
2.30.2