[PATCH] Reimplement heuristic for estimating complete-unroll optimization effects.

[Michael Zolotukhin]

Hi Chandler,

I just discovered, that in this implementation of lazy caching we'll end up visiting 'bad' GEPs on every iteration. Do you think it's ok to have a set of such GEPs, which'll prevent us from doing the same useless analysis over and over again? By 'bad' GEPs here I mean instructions, which are not BaseAddress+Constant - we visit them, but don't add to the SCEVCache.

Michael


http://reviews.llvm.org/D7837

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