verilator/test_regress/t/t_dedupe_clk_gate.pl
Geza Lore 599d23697d
IEEE compliant scheduler (#3384)
This is a major re-design of the way code is scheduled in Verilator,
with the goal of properly supporting the Active and NBA regions of the
SystemVerilog scheduling model, as defined in IEEE 1800-2017 chapter 4.

With this change, all internally generated clocks should simulate
correctly, and there should be no more need for the `clock_enable` and
`clocker` attributes for correctness in the absence of Verilator
generated library models (`--lib-create`).

Details of the new scheduling model and algorithm are provided in
docs/internals.rst.

Implements #3278
2022-05-15 16:03:32 +01:00

26 lines
890 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 2003 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);
my $out_filename = "$Self->{obj_dir}/V$Self->{name}.xml";
compile(
verilator_flags2 => ["--stats"],
);
if ($Self->{vlt_all}) {
file_grep("$out_filename", qr/\<var loc="\w+,44,.*?" name="t.f0.clock_gate.clken_latched" dtype_id="\d+" vartype="logic" origName="clken_latched" latched="true"\/\>/i);
file_grep($Self->{stats}, qr/Optimizations, Gate sigs deduped\s+(\d+)/i, 4);
}
ok(1);
1;