Compiler Design · Data Flow Analyses
Official IIT answer key · IIT Roorkee · Audited Aug 2026
GATE CSE 2026 Set 2 Q45 · MCQ · 2 marks

Key concept
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Topic notes
Data flow analysis in GATE Compiler Design primarily evaluates an understanding of live variable analysis both conceptually and computationally on Control Flow Graphs (CFGs). Testing ranges from 1-mark recall questions on the compiler optimizations that rely on data-flow facts (like register allocation) to 2-mark CFG tracing questions tracking variable uses and definitions across program points.
Full Data Flow Analyses guide →Consider the control flow graph given below. Which one of the following options is the set of live variables at the exit point of each basic block?
Topic-wise GATE CS PYQs with verified steps
Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.
