1
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6

Consider the basic block given below.

a = b + c 
c = a + d 
d = b + c 
e = d - b 
a = e + b

The minimum number of nodes and edges present in the DAG representation of the above basic block respectively are

A
6 and 6
B
8 and 10
C
9 and 12
D
4 and 4
2
GATE CSE 2010
MCQ (Single Correct Answer)
+2
-0.6

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
GATE CSE Subjects
Software Engineering
Web Technologies
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12