verilator/test_regress/t/t_semaphore_always.pl
Krzysztof Bieganski 729f8b9334
Move suspendable detection to a separate visitor (#4208)
This makes the implementation of the detection and propagation of the
suspendable property simpler and easier to read. More importantly, there are no
more jumps around the AST with the `visit` functions, which in some cases could
result in incorrect visitor context while in the `visit` function. See the added
test, which would cause Verilator to segfault before this patch.

In testing, verilation performance was not shown to be affected by this change.
Though there is a slight performance improvement from this patch, due to adding
one more check before refreshing class member cache.

Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2023-05-17 17:09:33 +00:00

28 lines
693 B
Perl
Executable File

#!/usr/bin/env perl
if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
# DESCRIPTION: Verilator: Verilog Test driver/expect definition
#
# Copyright 2023 by Wilson Snyder. This program is free software; you
# can redistribute it and/or modify it under the terms of either the GNU
# Lesser General Public License Version 3 or the Perl Artistic License
# Version 2.0.
# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
scenarios(simulator => 1);
if (!$Self->have_coroutines) {
skip("No coroutine support");
}
else {
compile(
verilator_flags2 => ["--timing"],
);
execute(
check_finished => 1,
);
}
ok(1);
1;