From 8535fad052a90c588bf3cc83e107725326475d9c Mon Sep 17 00:00:00 2001
From: Todd Strader <todd.strader@gmail.com>
Date: Fri, 28 Feb 2020 18:05:51 -0500
Subject: [PATCH] Type comparison test

---
 test_regress/t/t_type_comparison.pl | 20 ++++++++++++
 test_regress/t/t_type_comparison.v  | 49 +++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100755 test_regress/t/t_type_comparison.pl
 create mode 100644 test_regress/t/t_type_comparison.v

diff --git a/test_regress/t/t_type_comparison.pl b/test_regress/t/t_type_comparison.pl
new file mode 100755
index 000000000..c0ac5a0f0
--- /dev/null
+++ b/test_regress/t/t_type_comparison.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2020 by Todd Strader. This program is free software; you can
+# redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+
+scenarios(simulator => 1);
+
+compile(
+    );
+
+execute(
+    check_finished => 1,
+    );
+
+ok(1);
+1;
diff --git a/test_regress/t/t_type_comparison.v b/test_regress/t/t_type_comparison.v
new file mode 100644
index 000000000..ce957dd8c
--- /dev/null
+++ b/test_regress/t/t_type_comparison.v
@@ -0,0 +1,49 @@
+// DESCRIPTION: Verilator: Verilog Test module
+//
+// This file ONLY is placed into the Public Domain, for any use,
+// without warranty, 2020 by Todd Strader.
+
+module foo
+   #(parameter type a_type = logic,
+     parameter type b_type = int)
+   ();
+
+   initial begin
+      if (type(a_type) != type(logic[7:0])) begin
+         $display("%%Error: a_type is wrong");
+         $stop();
+      end
+
+      if (type(b_type) != type(real)) begin
+         $display("%%Error: b_type is wrong");
+         $stop();
+      end
+
+      if (type(a_type) == type(logic)) begin
+         $display("%%Error: a_type is the default value");
+         $stop();
+      end
+
+      if (type(b_type) == type(int)) begin
+         $display("%%Error: b_type is the default value");
+         $stop();
+      end
+
+      if (type(a_type) == type(b_type)) begin
+         $display("%%Error: a_type equals b_type");
+         $stop();
+      end
+
+      $write("*-* All Finished *-*\n");
+      $finish;
+   end
+
+endmodule
+
+module t();
+
+   foo #(
+      .a_type (logic[7:0]),
+      .b_type (real)) the_foo ();
+
+endmodule