[PATCH] [PM] Change the core design of the TTI analysis to use a polymorphic type erased interface and a single analysis pass rather than an extremely complex analysis group.

[Eric Christopher]

Looks pretty good to me. It might be nice for TTI to have a class design comment somewhere around it that gives some rough stubbed out directions for how specialization works, but in general no other comments than that.


http://reviews.llvm.org/D7293

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