[PATCH] D127122: [InstCombine] reduce right-shift-of-left-shifted constant via demanded bits

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 434809.
spatel marked 2 inline comments as done.
spatel added a comment.

Adjusted code to allow non-uniform (non-splat) vector constants on the shifted (inner) constant.

The Alive2 proof is updated to match the new logic:
https://alive2.llvm.org/ce/z/P3dWDW


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127122/new/

https://reviews.llvm.org/D127122

Files:
  llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  llvm/test/Transforms/InstCombine/shift-shift.ll

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