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LibJS: Add LoadArgument bytecode instruction for fast argument access
This is generated for Identifier nodes that represent a function argument variable. It loads a given argument index from the current call frame into the accumulator.
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4 changed files with 31 additions and 1 deletions
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@ -529,6 +529,22 @@ public:
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private:
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HashMap<u32, Variable> m_variables;
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};
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class LoadArgument final : public Instruction {
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public:
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explicit LoadArgument(size_t index)
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: Instruction(Type::LoadArgument)
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, m_index(index)
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{
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}
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void execute(Bytecode::Interpreter&) const;
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String to_string(Bytecode::Executable const&) const;
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private:
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size_t m_index { 0 };
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};
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}
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namespace JS::Bytecode {
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