Consider the following intermediate program in three address code p = a - b q…
GATE · 2017 · CS · Set 1 · Computer Science & ITModified — slightly modified from the official paper; see the solution
Consider the following intermediate program in three address code
p = a - b
q = p * c
p = u * v
q = p + q
Which one of the following corresponds to a static single assignment form of the above code?
- A.
p1 = a - b
q1 = p1 * c
p1 = u * v
q1 = p1 + q1
- B.
p3 = a - b
q4 = p3 * c
p4 = u * v
q5 = p4 + q4 - C.
p1 = a - b
q1 = p2 * c
p3 = u * v
q2 = p4 + q3 - D.
p1 = a - b
q1 = p * c
p2 = u * v
q2 = p + q
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Correct answer: B
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