Computer Sciences > GATE 2026 SET-2 > Compiler Design
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?
A
B1: {a, b, c, e, f}, B2: {d, e}, B3: {b, c, e, f}, B4: φ
B
B1: φ, B2: {d, e}, B3: {a, c, f}, B4: φ
C
B1: {a, b, c, e, f}, B2: {d, e}, B3: {c, e, f}, B4: φ
D
B1: φ, B2: {d, e, f}, B3: {a, b, c, e, f}, B4: φ

Correct : a

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