1. Three-Address Code

• What do you mean by three-address code? What is the implementation method of three-address code? Describe with an example.[2020, 2018, 2014, 2011, 2009]
• Or, What do you mean by three-address code? Describe with an example.[2013]
• Or, Explain the three-address code with an example.[2017]

2. Machine Independent Intermediate Code

• What are the advantages of machine-independent intermediate code?[2012, 2009]
• Or, What are the benefits of machine-independent intermediate code?[2019]

3. Quadruples vs. Triples

• Write down the advantages and disadvantages of quadruples over triples.[2015]

4. Simplifications

• Translate the arithmetic expression [a + a^ * (b - c)] + [(b - c)^ * d] into:

  (i) Three-address code

  (ii) Quadruples

  (iii) Triples

  [2016, 2010]

• Write quadruples, triples, and indirect triples for the expression (a + b) + (c + d) - (a + b + c).

  [2015]

5. Code Generation

• The assignment d := (a - b) + (a - c) + (a - c) might be translated into the following three-address code sequence:

  t := a - b
  u := a - c
  v := t + u
  d := v + u
  
  

  • With d live at the end, what are the code sequences for the above three-address code using the code generation algorithm?[2014]