ladybird/Userland/Libraries/LibJS/Bytecode/BasicBlock.cpp
Andreas Kling f388d2362a LibJS: Pad the capacity of BasicBlock while growing it
Just using Vector::resize() meant that we allocated exact capacity
instead of leaving padding at the end. This patch adds a call to
grow_capacity() before resize(), which ensures that we grow with the
usual extra padding.
2023-09-30 09:33:11 +02:00

50 lines
1.2 KiB
C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/DeprecatedString.h>
#include <LibJS/Bytecode/BasicBlock.h>
#include <LibJS/Bytecode/Op.h>
namespace JS::Bytecode {
NonnullOwnPtr<BasicBlock> BasicBlock::create(DeprecatedString name)
{
return adopt_own(*new BasicBlock(move(name)));
}
BasicBlock::BasicBlock(DeprecatedString name)
: m_name(move(name))
{
}
BasicBlock::~BasicBlock()
{
Bytecode::InstructionStreamIterator it(instruction_stream());
while (!it.at_end()) {
auto& to_destroy = (*it);
++it;
Instruction::destroy(const_cast<Instruction&>(to_destroy));
}
}
void BasicBlock::dump(Bytecode::Executable const& executable) const
{
Bytecode::InstructionStreamIterator it(instruction_stream());
if (!m_name.is_empty())
warnln("{}:", m_name);
while (!it.at_end()) {
warnln("[{:4x}] {}", it.offset(), (*it).to_deprecated_string(executable));
++it;
}
}
void BasicBlock::grow(size_t additional_size)
{
m_buffer.grow_capacity(m_buffer.size() + additional_size);
m_buffer.resize(m_buffer.size() + additional_size);
}
}