mirror of
https://github.com/verilator/verilator.git
synced 2026-09-07 18:06:07 +02:00
Geza Lore
bcaa110f60
Previously V3InlineCFuncs inlined call sites but never deleted the now dead callees. Also missed a lot of opportunities due to evaluation order. Rewrite using a graph based algorithm, using only a single traversal of the netlist. This is clearer, more accurate, and faster at compile time. Also add a clean -fno-inline-cfuncs disable. Setting the limits to 0 still disables inlining, except of empty functions, which can be inlined with 0 limits (they are no ops). It will also prune unused functions without -fno-inline-cfuncs. Pass now also respects `--output-split`
25 lines
907 B
Python
Executable File
25 lines
907 B
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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# 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 vltest_bootstrap
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test.scenarios('vlt_all')
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test.top_filename = "t/t_opt_inline_cfuncs.v"
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test.compile(verilator_flags2=["--stats", "--binary", "--trace", "--inline-cfuncs-product", "200"])
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if test.vlt:
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test.file_grep(test.stats, r'Optimizations, Inline CFuncs, calls inlined\s+(\d+)', 8)
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test.file_grep(test.stats, r'Optimizations, Inline CFuncs, functions inlined\s+(\d+)', 7)
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test.file_grep(test.stats, r'Optimizations, Inline CFuncs, functions removed\s+(\d+)', 9)
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test.execute()
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test.passes()
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