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62 lines
1.9 KiB
Perl
Executable File
62 lines
1.9 KiB
Perl
Executable File
#!/usr/bin/env perl
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if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
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# DESCRIPTION: Verilator: Verilog Test driver/expect definition
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#
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# Copyright 2003 by Wilson Snyder. This program is free software; you
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# can redistribute it and/or modify it under the terms of either the GNU
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# Lesser General Public License Version 3 or the Perl Artistic License
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# Version 2.0.
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# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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use IO::File;
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# Very slow on vltmt, and doesn't test much of value there, so disabled
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scenarios(vlt => 1);
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sub gen {
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my $filename = shift;
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my $n = shift;
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my $fh = IO::File->new(">$filename");
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$fh->print("// Generated by t_emit_memb_limit.pl\n");
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$fh->print("module t (i, clk, o);\n");
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$fh->print(" input clk;\n");
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$fh->print(" input i;\n");
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$fh->print(" output logic o;\n");
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for (my $i=0; $i<($n+1); ++$i) {
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$fh->print(" logic r$i;\n");
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}
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$fh->print(" always @ (posedge clk) begin\n");
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$fh->print(" r0 <= i;\n");
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for (my $i=1; $i<$n; ++$i) {
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$fh->print(" r".($i+1)." <= r$i;\n");
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}
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$fh->print(" o <= r$n;\n");
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$fh->print(' $write("*-* All Finished *-*\n");',"\n");
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$fh->print(' $finish;',"\n");
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$fh->print(" end\n");
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$fh->print("endmodule\n");
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}
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top_filename("$Self->{obj_dir}/t_emit_memb_limit.v");
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# Current limit is 50, so want to test at least 50*50 cases
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gen($Self->{top_filename}, 6000);
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compile(
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verilator_flags2=>["-x-assign fast --x-initial fast",
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"-Wno-UNOPTTHREADS",
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# The slow V3Partition asserts are just too slow
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# in this test. They're disabled just for performance
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# reasons:
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"--no-debug-partition"],
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);
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execute(
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check_finished => 1,
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);
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file_grep("$Self->{obj_dir}/$Self->{VM_PREFIX}.h", qr/struct \{/);
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ok(1);
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1;
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