diff --git a/test_regress/t/t_delay_func_bad.out b/test_regress/t/t_delay_func_bad.out
new file mode 100644
index 000000000..dd63449c5
--- /dev/null
+++ b/test_regress/t/t_delay_func_bad.out
@@ -0,0 +1,9 @@
+%Error: t/t_delay_func_bad.v:10:8: Delays are not legal in functions. Suggest use a task (IEEE 1800-2017 13.4.4)
+                                 : ... In instance t
+   10 |       #1 $stop;
+      |        ^
+%Error: t/t_delay_func_bad.v:23:8: Delays are not legal in final blocks (IEEE 1800-2017 9.2.3)
+                                 : ... In instance t
+   23 |       #1;
+      |        ^
+%Error: Exiting due to
diff --git a/test_regress/t/t_timing_func_bad.pl b/test_regress/t/t_delay_func_bad.pl
similarity index 100%
rename from test_regress/t/t_timing_func_bad.pl
rename to test_regress/t/t_delay_func_bad.pl
diff --git a/test_regress/t/t_timing_func_bad.v b/test_regress/t/t_delay_func_bad.v
similarity index 100%
rename from test_regress/t/t_timing_func_bad.v
rename to test_regress/t/t_delay_func_bad.v
diff --git a/test_regress/t/t_timing_func_bad.out b/test_regress/t/t_timing_func_bad.out
deleted file mode 100644
index 978f09039..000000000
--- a/test_regress/t/t_timing_func_bad.out
+++ /dev/null
@@ -1,9 +0,0 @@
-%Error: t/t_timing_func_bad.v:10:8: Delays are not legal in functions. Suggest use a task (IEEE 1800-2017 13.4.4)
-                                  : ... In instance t
-   10 |       #1 $stop;
-      |        ^
-%Error: t/t_timing_func_bad.v:23:8: Delays are not legal in final blocks (IEEE 1800-2017 9.2.3)
-                                  : ... In instance t
-   23 |       #1;
-      |        ^
-%Error: Exiting due to