vertical loop combination ==>
fusion
<programming> A program transformation where a composition of two
functions is replaced by in-lining them and combining their bodies. E.g.
f x = g (h x) ==> f x = g (2 * x)
g x = x + 1 f x = 2 * x + 1
h x = 2 * x
This has the beneficial effect of reducing the number of function calls.
It can be especially useful where the intermediate
result is a large data structure which can be
eliminated.
See also vertical loop combination.
(1994-12-05)
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