From 434896d50c7419abeccc7c966ef5b97d6b0b82da Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sun, 8 Sep 2024 15:09:44 -0400
Subject: [PATCH] Tests: test class IGNOREDRETURN.

---
 test_regress/t/t_func_void_bad.out |  7 +++++--
 test_regress/t/t_func_void_bad.v   | 28 +++++++++++-----------------
 2 files changed, 16 insertions(+), 19 deletions(-)

diff --git a/test_regress/t/t_func_void_bad.out b/test_regress/t/t_func_void_bad.out
index a2ccc177d..e14223a08 100644
--- a/test_regress/t/t_func_void_bad.out
+++ b/test_regress/t/t_func_void_bad.out
@@ -1,6 +1,9 @@
-%Warning-IGNOREDRETURN: t/t_func_void_bad.v:26:7: Ignoring return value of non-void function (IEEE 1800-2023 13.4.1)
-   26 |       f1(20);
+%Warning-IGNOREDRETURN: t/t_func_void_bad.v:21:7: Ignoring return value of non-void function (IEEE 1800-2023 13.4.1)
+   21 |       f1();   
       |       ^~
                         ... For warning description see https://verilator.org/warn/IGNOREDRETURN?v=latest
                         ... Use "/* verilator lint_off IGNOREDRETURN */" and lint_on around source to disable this message.
+%Warning-IGNOREDRETURN: t/t_func_void_bad.v:24:9: Ignoring return value of non-void function (IEEE 1800-2023 13.4.1)
+   24 |       c.fi();   
+      |         ^~
 %Error: Exiting due to
diff --git a/test_regress/t/t_func_void_bad.v b/test_regress/t/t_func_void_bad.v
index 3cea6abc8..837595812 100644
--- a/test_regress/t/t_func_void_bad.v
+++ b/test_regress/t/t_func_void_bad.v
@@ -4,30 +4,24 @@
 // any use, without warranty, 2003 by Wilson Snyder.
 // SPDX-License-Identifier: CC0-1.0
 
-module t (clk);
-   input clk;
-
-   int side_effect;
+class Cls;
+   function int fi();
+      return 10;
+   endfunction
+endclass
 
+module t;
    function int f1;
-      input int in;
-      f1 = in + 1;
-      side_effect += in + 1;
+      return 20;
    endfunction
 
    initial begin
-      int got;
-      side_effect = 1;
+      Cls c;
       //
-      got = f1(10);
-      if (got != 11) $stop;
-      if (side_effect != 12) $stop;
+      f1();  // Bad - ignored result
       //
-      f1(20);
-      if (side_effect != 33) $stop;
-      //
-//      void'f1(30);
-//      if (side_effect != 64) $stop;
+      c = new;
+      c.fi();  // Bad - ignored result
       //
       $write("*-* All Finished *-*\n");
       $finish;