From 1cc106452fb25d082ca9491c24df97cc51d4b992 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Tue, 19 Nov 2019 17:05:14 -0800
Subject: [PATCH] Add a equiv test too

---
 tests/various/abc9.v  |  7 +++++++
 tests/various/abc9.ys | 16 ++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/tests/various/abc9.v b/tests/various/abc9.v
index 30ebd4e26..e53dcdb21 100644
--- a/tests/various/abc9.v
+++ b/tests/various/abc9.v
@@ -9,3 +9,10 @@ wire w;
 unknown u(~i, w);
 unknown2 u2(w, o);
 endmodule
+
+module abc9_test031(input clk, d, r, output reg q);
+initial q = 1'b0;
+always @(negedge clk or negedge r)
+    if (r) q <= 1'b0;
+    else q <= d;
+endmodule
diff --git a/tests/various/abc9.ys b/tests/various/abc9.ys
index 5c9a4075d..9e732bdc8 100644
--- a/tests/various/abc9.ys
+++ b/tests/various/abc9.ys
@@ -22,3 +22,19 @@ abc9 -lut 4
 select -assert-count 1 t:$lut r:LUT=2'b01 r:WIDTH=1 %i %i
 select -assert-count 1 t:unknown
 select -assert-none t:$lut t:unknown %% t: %D
+
+design -load read
+hierarchy -top abc9_test031
+proc
+async2sync
+design -save gold
+
+abc9 -lut 4
+check
+design -stash gate
+
+design -import gold -as gold
+design -import gate -as gate
+
+miter -equiv -flatten -make_assert -make_outputs gold gate miter
+sat -seq 10 -verify -prove-asserts -show-ports miter
-- 
2.30.2