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When calling emit_load_from_reference with a MemberExpression, it is only necessary to store the result of evaluating MemberExpression's object when performing computed property lookup. This allows us to skip unnecessary stores for identifier lookup. For example, this would generate 3 unnecessary stores: ``` > Temporal.PlainDateTime.prototype.add JS::Bytecode::Executable (REPL) 1: [ 0] GetVariable 0 (Temporal) [ 28] Store $2 [ 30] GetById 1 (PlainDateTime) [ 40] Store $3 [ 48] GetById 2 (prototype) [ 58] Store $4 [ 60] GetById 3 (add) ``` With this, it generates: ``` > Temporal.PlainDateTime.prototype.add JS::Bytecode::Executable (REPL) 1: [ 0] GetVariable 0 (Temporal) [ 28] GetById 1 (PlainDateTime) [ 38] GetById 2 (prototype) [ 48] GetById 3 (add) ``` |
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