Intermediate
Compilers & Programming Language Theory
Q63 / 100
What is the role of a lattice in dataflow analysis?
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Incorrect.
The correct answer is A) It provides a partially ordered set of abstract values with a meet/join operation and a finite height, guaranteeing that iterative dataflow algorithms converge to a fixed point
A
Correct Answer
It provides a partially ordered set of abstract values with a meet/join operation and a finite height, guaranteeing that iterative dataflow algorithms converge to a fixed point
Explanation
Dataflow frameworks model facts (e.g., sets of live variables) as lattice elements ordered by precision. The transfer functions are monotonic and the lattice has finite height, so repeatedly applying them from an initial approximation must reach a fixed point.
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