Which TAC efficiently implements the switch for the below code
switch (ch) {
case 1: x = x + 1; break;
case 2: x = x - 1; break;
case 3: x = 0; break;
default: x = -1;
}

Question

Which TAC  efficiently implements the switch for the below code  
 switch (ch) { 
     case 1: x = x + 1; break; 
     case 2: x = x - 1; break; 
     case 3: x = 0;     break; 
     default: x = -1; 
 }

Answer

switch ch goto L1, L2, L3, L4 
 L1: x = x + 1; goto L5 
 L2: x = x - 1; goto L5 
 L3: x = 0; goto L5 
 L4: x = -1 
 L5:

Answer

if ch==1 goto L1 
 else if ch==2 goto L2 
 else if ch==3 goto L3 
 else goto L4

Crowdly

Which TAC efficiently implements the switch for the below code switch (ch) {...

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