Roman Lebedev 1e2691fe23 [NFCI] SCEV: promote ScalarEvolutionDivision into an publicly usable class ...

This makes it usable from outside of SCEV,
while previously it was internal to the ScalarEvolution.cpp

In particular, i want to use it in an WIP alloca promotion helper pass,
to analyze if some SCEV is a multiple of some other SCEV.

2020-06-25 00:58:53 +03:00

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