Code Optimisation Questions
Loop-invariant code motion is a code optimization technique that involves moving code statements outside of a loop if they do not depend on the loop's iteration. This technique helps in code optimization by reducing the number of times certain computations are performed within a loop.
By identifying code statements that produce the same result in every iteration of a loop, loop-invariant code motion allows these statements to be moved outside of the loop. This eliminates redundant computations and improves the overall efficiency of the code.
Moving loop-invariant code outside of the loop reduces the number of instructions executed within the loop, resulting in faster execution times. It also reduces the number of memory accesses, which can improve cache utilization and reduce memory latency.
Overall, loop-invariant code motion helps in code optimization by minimizing redundant computations and improving the performance of loops.