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JSSpecCompiler: Add control flow building pass

This commit is contained in:
Dan Klishch 2023-08-19 14:24:50 -04:00 committed by Andrew Kaster
parent c74e2d04d1
commit ff44aea917
10 changed files with 222 additions and 2 deletions

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/*
* Copyright (c) 2023, Dan Klishch <danilklishch@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/TypeCasts.h>
#include "Compiler/ControlFlowGraph.h"
#include "Compiler/GenericASTPass.h"
namespace JSSpecCompiler {
class CFGBuildingPass
: public IntraproceduralCompilerPass
, private RecursiveASTVisitor {
public:
inline static constexpr StringView name = "cfg-building"sv;
using IntraproceduralCompilerPass::IntraproceduralCompilerPass;
protected:
void process_function() override;
RecursionDecision on_entry(Tree tree) override;
void on_leave(Tree tree) override;
private:
BasicBlockRef create_empty_block();
BasicBlockRef exchange_current_with_empty();
void will_be_used_as_expression(Tree const& tree);
ControlFlowGraph* m_cfg;
BasicBlockRef m_current_block;
Vector<bool> m_is_expression_stack;
};
}