forked from github/verilator
5ad3c4e499
This patch makes OpenTitan verilation with --debug-check 22% faster, and the same with --debug --no-dump-tree 91% faster. Functionality is the same (including when VL_LEAK_CHECKS is defined), except V3Broken can now always find duplicate references via child/next pointers if the target node is not `maybePointedTo()` (previously this only happened when compiled with VL_LEAK_CHECKS). The main change relates to storing the v3Broken traversal state in the AstNode by stealing a byte from what used to be unused flags. We retain an unordered_set only for marking pointers as valid to be referenced via a non-child/non-next member pointer.
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
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//*************************************************************************
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// DESCRIPTION: Verilator: Find broken links in tree
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//
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// Code available from: https://verilator.org
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//
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//*************************************************************************
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//
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// Copyright 2003-2021 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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//
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//*************************************************************************
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#ifndef VERILATOR_V3BROKEN_H_
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#define VERILATOR_V3BROKEN_H_
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#include "config_build.h"
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#include "verilatedos.h"
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//============================================================================
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// Forward declare so we can include this in V3Ast.h
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class AstNode;
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class AstNetlist;
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class V3Broken final {
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public:
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static void brokenAll(AstNetlist* nodep);
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static bool isLinkable(const AstNode* nodep);
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static void addNewed(const AstNode* nodep);
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static void deleted(const AstNode* nodep);
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static void selfTest();
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};
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#endif // Guard
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