a data structure that represents the source program during translation is called an intermediate representation or IR. for short Such an intermediate representation that resembles target code is called intermediate code Intermediate code is particularly useful when the goal of the compiler is to produce extremely efficient code; Intermediate code can also be useful in making a compiler more easily retarget-able Study two popular forms of intermediate code: Three Address code and p-code The most basic instruction of three-address code is designed to represent the evaluation of arithmetic expressions and has the following general form op z• A data structure that represents the source program during translation is called an intermediate representation, or IR, for short • Such an intermediate representation that resembles target code is called intermediate code – Intermediate code is particularly useful when the goal of the compiler is to produce extremely efficient code; – Intermediate code can also be useful in making a compiler more easily retarget-able. • Study two popular forms of intermediate code: Three - Address code and P-code • The most basic instruction of three-address code is designed to represent the evaluation of arithmetic expressions and has the following general form: X=y op z