45 lines
1.3 KiB
Python
Executable File
45 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# DESCRIPTION: Verilator: Verilog Test driver/expect definition
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#
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# Copyright 2024 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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import vltest_bootstrap
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import time
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FileTimes = {}
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def prep_output_file(filename):
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oldstats = os.path.getmtime(filename)
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if not oldstats:
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test.error("No output file found: " + filename)
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print("Old %s mtime=%d" % (filename, oldstats))
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FileTimes[filename] = oldstats
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test.scenarios('vlt')
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test.compile(verilator_flags2=['--stats'])
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print("NOTE: use --debugi, as --debug in driver turns off skip-identical")
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prep_output_file(test.obj_dir + "/V" + test.name + ".cpp")
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prep_output_file(test.obj_dir + "/V" + test.name + "__stats.txt")
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time.sleep(2) # Or else it might take < 1 second to compile and see no diff.
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test.setenv('VERILATOR_DEBUG_SKIP_IDENTICAL', "1")
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test.compile(verilator_flags2=['--stats'])
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for filename, oldtime in FileTimes.items():
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newstats = os.path.getmtime(filename)
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print("New %s mtime=%d" % (filename, newstats))
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if oldtime != newstats:
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test.error("--skip-identical was ignored -- regenerated %s" % (filename))
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test.passes()
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