Data Structures | Nielit Scentist-B [02-12-2018]

____ merges the bodies of two loops.

1. Loop rolling
2. Loop folding
3. Loop merge
4. Loop jamming

Answer: D

Explanation:

In loop jamming, the bodies of the two loops are merged together to form a single loop provided that they do not make any references to each other. It reduces the time taken to compile the many number of loops.

Example:

Initial Code:

for(int i=0; i<5; i++)
  a = i + 5;
for(int i=0; i<5; i++)
  b = i + 10;

Using Loop jamming above code converted into below Optimized code :

for(int i=0; i<5; i++)
{
  a = i + 5;
  b = i + 10;
}

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