[PATCH] [SCEV] Add a `scalar-evolution-print-constant-ranges' option

[Andrew Trick]

LGTM.

How bad would it be to make this default? Just lots of tests to update? Or is it really undesirable to see this level of detail?

I'm not anxious to break tests and create merge problems for people. I'm just curious. Please explain why we need another command line option in the commit comments at least.


http://reviews.llvm.org/D8143

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