mirror of
				https://github.com/LadybirdBrowser/ladybird.git
				synced 2025-10-31 05:10:57 +00:00 
			
		
		
		
	 e7d69c5d3c
			
		
	
	
		e7d69c5d3c
		
	
	
	
	
		
			
			This patch changes the LibJS bytecode to be a stream of instructions packed one-after-the-other in contiguous memory, instead of a vector of OwnPtr<Instruction>. This should be a lot more cache-friendly. :^) Instructions are also devirtualized and instead have a type field using a new Instruction::Type enum. To iterate over a bytecode stream, one must now use Bytecode::InstructionStreamIterator.
		
			
				
	
	
		
			34 lines
		
	
	
	
		
			630 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
	
		
			630 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
 | |
|  *
 | |
|  * SPDX-License-Identifier: BSD-2-Clause
 | |
|  */
 | |
| 
 | |
| #pragma once
 | |
| 
 | |
| #include <AK/Format.h>
 | |
| 
 | |
| namespace JS::Bytecode {
 | |
| 
 | |
| class Label {
 | |
| public:
 | |
|     explicit Label(size_t address)
 | |
|         : m_address(address)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     size_t address() const { return m_address; }
 | |
| 
 | |
| private:
 | |
|     size_t m_address { 0 };
 | |
| };
 | |
| 
 | |
| }
 | |
| 
 | |
| template<>
 | |
| struct AK::Formatter<JS::Bytecode::Label> : AK::Formatter<FormatString> {
 | |
|     void format(FormatBuilder& builder, JS::Bytecode::Label const& value)
 | |
|     {
 | |
|         return AK::Formatter<FormatString>::format(builder, "@{:x}", value.address());
 | |
|     }
 | |
| };
 |