GATE 2024 Compiler DesignRank Booster Quiz 20

Which of the following is machine independent optimization?

The optimization phase in a compiler generally:

Which of the following is not a machine-independent code optimization technique?

How many temporary variables are needed to write the three address code for the expression a + b * c + d.

What is the minimum number of temporary variable required to create a 3-address code in a static single assignment form if the expression is given as : a+(c*d)-(e/f) +(g*(h/i))

Consider the intermediate code given below :

K=1

L2:S=1

L1:R1=8*K

R2=R1 + S

R3= 8* R2

B[R3]= 3

S++

IF S<=2 GOTO L1

K++

IF K<7 GOTO L2

The number of nodes and leaders in the control flow graph for the above code(written without spaces and in order) is?

Given the below DAG, what will be the output?