DU-chains(Definition-Use) in compiler design
2018
DU-chains(Definition-Use) in compiler design
Answer: D. All of the above — DU-chains (Definition-Use chains) represent the relationship between where a variable is defined and where it is subsequently used. They are constructed using…
- A.
consist of a definition of a variable and all its uses, reachable from that definition
- B.
are created using a form of static code analysis
- C.
are prerequisite for many compiler optimization including constant propagation and common sub-expression elimination
- D.
All of the above
Attempted by 213 students.
Show answer & explanation
Correct answer: D
DU-chains (Definition-Use chains) represent the relationship between where a variable is defined and where it is subsequently used.
They are constructed using static code analysis to identify all reachable uses from a definition without executing the program.
These chains are critical for enabling compiler optimizations such as constant propagation and common sub-expression elimination.
A video solution is available for this question — log in and enroll to watch it.
Explore the full course: Iocl Engineers Officers Grade A Paper 2