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ISRO2020-42

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Which of the following is a type of a out-of-order execution, with the reordering done by a compiler

  1. loop unrolling
  2. dead code elimination
  3. strength reduction
  4. software pipelining
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$\underline{\textbf{Answer:}\Rightarrow}\;\mathbf{d.}$

The software pipelining is a method that is used to optimize loops, in a way that parallels hardware pipelining.

It is out of order execution, except that the reordering is done by the compiler.

https://en.wikipedia.org/wiki/Software_pipelining

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