cea59b6642
This patch adds a register freelist to Bytecode::Generator and switches all operands inside the generator to a new ScopedOperand type that is ref-counted and automatically frees the register when nothing uses it. This dramatically reduces the size of bytecode executable register windows, which were often in the several thousands of registers for large functions. Most functions now use less than 100 registers.
23 lines
505 B
C++
23 lines
505 B
C++
/*
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* Copyright (c) 2024, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Bytecode/Generator.h>
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#include <LibJS/Bytecode/ScopedOperand.h>
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namespace JS::Bytecode {
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ScopedOperandImpl::~ScopedOperandImpl()
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{
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if (!m_generator.is_finished() && m_operand.is_register() && m_operand.as_register().index() != 0)
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m_generator.free_register(m_operand.as_register());
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}
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Register Operand::as_register() const
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{
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return Register { m_index };
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}
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}
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