[LVI] Add an API to LazyValueInfo so that it can export ConstantRanges
that it computes. Currently this is used for testing and precision
tuning, but it might be used by optimizations later.

Differential Revision: http://reviews.llvm.org/D19179



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268291 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed