[PATCH] D51112: [ValueTracking] Teach computeNumSignBits to understand min/max clamp patterns with constant/splat values

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 162044.
craig.topper added a comment.

Add a helper function


https://reviews.llvm.org/D51112

Files:
  lib/Analysis/ValueTracking.cpp
  test/Transforms/InstCombine/max_known_bits.ll

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