[PATCH] D90479: [ValueTracking] ComputeKnownBits - minimum leading/trailing zero bits in LSHR/SHL (PR44526)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 325725.
RKSimon added a comment.

Add early-out from KnownBits::shl loop if we know no bits


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D90479/new/

https://reviews.llvm.org/D90479

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/lib/Support/KnownBits.cpp
  llvm/test/Transforms/InstCombine/known-signbit-shift.ll
  llvm/test/Transforms/InstSimplify/icmp-constant.ll

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