Revert -r278267 [ValueTracking] An improvement to IR ValueTracking on Non-negative Integers

This change cause performance regression on MultiSource/Benchmarks/TSVC/Symbolics-flt/Symbolics-flt from LNT and some other bechmarks.

See https://reviews.llvm.org/D18777 for details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279433 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed