Discussion
The following are all typical peephole optimisations EXCEPT
Answer: A
Correct answer: reordering the basic blocks of the whole procedure
Peephole optimisation looks through a sliding window of a few adjacent instructions and knows nothing beyond it. Reordering blocks requires a view of the whole flow graph, so it is a global transformation. The other three - redundant load elimination, jump chaining and unreachable instruction removal - are all decidable within a small window.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development