[PATCH] D151916: [DAG] Peek through trunc when combining select into shifts.

[Amaury SECHET via Phabricator via llvm-commits]

deadalnix updated this revision to Diff 533385.
deadalnix added a comment.

Use countMaxActiveBits


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151916/new/

https://reviews.llvm.org/D151916

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/X86/dagcombine-select.ll

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