[PATCH] D59450: [ValueTracking] Use ConstantRange overflow check for signed add (NFC)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Actually, one more thought: why `[un]signedConstantRangeFromKnownBits()` are here, in `ValueTracking`?
Can they go into `KnownBits` class e.g. (`as{Uns,S}ignedConstantRange()`)?


Repository:
  rL LLVM

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  https://reviews.llvm.org/D59450/new/

https://reviews.llvm.org/D59450