37 lines
1.2 KiB
Python
Executable File
37 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# DESCRIPTION: Verilator: FSM coverage no-reset lowering test
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of either the GNU Lesser General Public License Version 3
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# or the Perl Artistic License Version 2.0.
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# SPDX-FileCopyrightText: 2026 Wilson Snyder
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# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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import os
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import vltest_bootstrap
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test.scenarios('simulator')
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# This test deliberately uses a clocked FSM with no outer reset branch. It
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# keeps coverage extraction in the supported subset, but forces lowering down
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# the "hasResetCond() == false" path so we validate the no-reset machinery
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# rather than only reset-wrapped FSMs.
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test.compile(verilator_flags2=['--cc --coverage-fsm'])
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test.execute()
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# Use annotated-source output so the expected file captures the no-reset shape
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# directly, including the absence of reset pseudo-arcs.
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test.run(cmd=[
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os.environ["VERILATOR_ROOT"] + "/bin/verilator_coverage",
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"--annotate",
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test.obj_dir + "/annotated",
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test.obj_dir + "/coverage.dat",
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],
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verilator_run=True)
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test.files_identical(test.obj_dir + "/annotated/" + test.name + ".v", test.golden_filename)
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test.passes()
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