Copy-restore Also known as:copy-in copy-out,value-result Combination of call-by-value and call-by-reference: the actuals are evaluated before the call the expressions having only r-values, the expressions having l-values are passed by reference CS308 Compiler Theory 5Copy-restore • Also known as: copy-in copy-out, value-result • Combination of call-by-value and call-by-reference: – the actuals are evaluated before the call – the e pressions ha ing onl r the expressions having only r-val es u , – the expressions having l-values are passed by reference 5 CS308 Compiler Theory