1. Definition and Purpose

• What is code optimization? How does a compiler optimize source code?[2016]
• Or, What do you mean by an optimizing compiler?[2010]

2. Organization of Code Optimizer

• Describe the organization of the code optimizer.[2010]

3. Peephole Optimization

• Describe the peephole optimization technique briefly.[2021, 2019, 2018, 2016, 2013, 2011, 2009]

4. Loop Optimization Techniques

• What are the loop optimization techniques? Describe them briefly.[2018]
• Or, Describe the loop optimization technique.[2021, 2019, 2014, 2012, 2010]
• Or, Illustrate loop optimization briefly.[2021]

5. Dead Code Elimination

• Give the main idea of dead code elimination.[2017, 2009]
• Or, What do you mean by dead code elimination?[2009]

6. Copy Propagation and DU-Chaining