The program below uses six temporary variables a, b, c, d, e, f. a = 1 b = 10…
GATE · 2010 · CS · Computer Science & IT
The program below uses six temporary variables a, b, c, d, e, f.
a = 1
b = 10
c = 20
d = a + b
e = c + d
f = c + e
b = c + e
e = b + f
d = 5 + e
return d + f
Assuming that all operations take their operands from registers, what is the minimum number of registers needed to execute this program without spilling?
- A.
2
- B.
3
- C.
4
- D.
6
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