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LibJS/JIT: Add fastpath for set variable

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This commit is contained in:
Stephan Vedder 2023-11-16 07:13:35 +01:00 • committed by Andreas Kling
parent b3cbe0fdb9
commit 84eecbb10e
8 changed files with 148 additions and 12 deletions
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5
Userland/Libraries/LibJS/Bytecode/Op.h
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@ -472,11 +472,12 @@ public:
Initialize,
Set,
};
explicit SetVariable(IdentifierTableIndex identifier, InitializationMode initialization_mode = InitializationMode::Set, EnvironmentMode mode = EnvironmentMode::Lexical)
explicit SetVariable(IdentifierTableIndex identifier, u32 cache_index, InitializationMode initialization_mode = InitializationMode::Set, EnvironmentMode mode = EnvironmentMode::Lexical)
: Instruction(Type::SetVariable, sizeof(*this))
, m_identifier(identifier)
, m_mode(mode)
, m_initialization_mode(initialization_mode)
, m_cache_index(cache_index)
{
}
@ -486,11 +487,13 @@ public:
IdentifierTableIndex identifier() const { return m_identifier; }
EnvironmentMode mode() const { return m_mode; }
InitializationMode initialization_mode() const { return m_initialization_mode; }
u32 cache_index() const { return m_cache_index; }
private:
IdentifierTableIndex m_identifier;
EnvironmentMode m_mode;
InitializationMode m_initialization_mode { InitializationMode::Set };
u32 m_cache_index { 0 };
};
class SetLocal final : public Instruction {