[PATCH] D157292: Reland [ValueTracking] Improve the coverage of isKnownToBeAPowerOfTwo for vscale

[Allen zhong via Phabricator via llvm-commits]

Allen added a comment.

In my local test, there is some failure tests after the revert of f6c726472df1 <https://reviews.llvm.org/rGf6c726472df1ebc8489e178a2d299cb3950efbfe>, and this PR can fix them

  LLVM :: Transforms/InstCombine/rem-mul-shl.ll
  LLVM :: Transforms/LoopVectorize/AArch64/sve-interleaved-accesses.ll
  LLVM :: Transforms/LoopVectorize/AArch64/sve-widen-phi.ll


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157292/new/

https://reviews.llvm.org/D157292