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LibJS/Bytecode: Make ClassDeclaration not clobber the accumulator

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2 new passes on test262. :^)
This commit is contained in:
Andreas Kling 2023-07-05 12:51:44 +02:00
parent e87d84f883
commit 7430dee5cf
1 changed files with 5 additions and 0 deletions
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5
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
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@ -2303,8 +2303,13 @@ Bytecode::CodeGenerationErrorOr<void> SwitchStatement::generate_labelled_evaluat
Bytecode::CodeGenerationErrorOr<void> ClassDeclaration::generate_bytecode(Bytecode::Generator& generator) const Bytecode::CodeGenerationErrorOr<void> ClassDeclaration::generate_bytecode(Bytecode::Generator& generator) const
{ {
auto accumulator_backup_reg = generator.allocate_register();
generator.emit<Bytecode::Op::Store>(accumulator_backup_reg);
TRY(m_class_expression->generate_bytecode(generator)); TRY(m_class_expression->generate_bytecode(generator));
generator.emit<Bytecode::Op::SetVariable>(generator.intern_identifier(m_class_expression.ptr()->name()), Bytecode::Op::SetVariable::InitializationMode::Initialize); generator.emit<Bytecode::Op::SetVariable>(generator.intern_identifier(m_class_expression.ptr()->name()), Bytecode::Op::SetVariable::InitializationMode::Initialize);
generator.emit<Bytecode::Op::Load>(accumulator_backup_reg);
return {}; return {};
} }