[#73220] add t_trace_ascendingrange_saif test

test_regress/t/t_trace_ascendingrange_saif.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2024 by Wilson Snyder. 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.
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+import vltest_bootstrap
+
+test.scenarios('simulator')
+test.top_filename = "t/t_trace_ascendingrange.v"
+test.golden_filename = "t/t_trace_ascendingrange_saif.out"
+
+# CI environment offers 2 VCPUs, 2 thread setting causes the following warning.
+# %Warning-UNOPTTHREADS: Thread scheduler is unable to provide requested parallelism; consider asking for fewer threads.
+# Strangely, asking for more threads makes it go away.
+test.compile(verilator_flags2=['--cc --trace-saif --trace-params -Wno-ASCRANGE'],
+             threads=(6 if test.vltmt else 1))
+
+test.execute()
+
+test.saif_identical(test.trace_filename, test.golden_filename)
+
+test.passes()