[PATCH] D28928: [ValueTracking] Implement SignBitMustBeZero correctly for sqrt.

[Justin Lebar via Phabricator via llvm-commits]

jlebar updated this revision to Diff 85090.
jlebar added a comment.

Handle the possibility of negative NaNs correctly, and add tests.


https://reviews.llvm.org/D28928

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/InstSimplify/floating-point-arithmetic.ll

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