[PATCH] D155622: [X86] Recognize standalone `(1 << nbits) - 1` pattern as bzhi

[Danila Malyutin via Phabricator via llvm-commits]

danilaml updated this revision to Diff 541968.
danilaml added a comment.

Add test with masked nbits


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155622/new/

https://reviews.llvm.org/D155622

Files:
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
  llvm/test/CodeGen/AArch64/extract-lowbits.ll
  llvm/test/CodeGen/X86/extract-bits.ll
  llvm/test/CodeGen/X86/extract-lowbits.ll

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