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Loop-invariant code motion

In computer programming, loop-invariant code consists of statements or expressions (in an imperative programming language) that can be moved outside the body of a loop without affecting the semantics of the program. Loop-invariant code motion (also called hoisting or scalar promotion) is a compiler optimization that performs this movement automatically.

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Loop-invariant code motion

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Avg. degree1.89
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loop code loop-invariant outside body example compiler invariant also registers moved motion hoisting optimization imperative two optimizations condition executed reaching

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