[PATCH] D62871: [Codegen] (X & (C l>>/<< Y)) ==/!= 0 --> ((X <</l>> Y) & C) ==/!= 0 fold

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 211614.
lebedev.ri marked 3 inline comments as done.
lebedev.ri added a comment.
Herald added a subscriber: hiraditya.

Thank you for taking a look!
Rebased, addressed notes about comments.
Care to stamp? :)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62871/new/

https://reviews.llvm.org/D62871

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
  llvm/lib/Target/Hexagon/HexagonISelLowering.h
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/test/CodeGen/AArch64/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll
  llvm/test/CodeGen/AArch64/hoist-and-by-const-from-shl-in-eqcmp-zero.ll
  llvm/test/CodeGen/AMDGPU/commute-shifts.ll
  llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll
  llvm/test/CodeGen/ARM/hoist-and-by-const-from-shl-in-eqcmp-zero.ll
  llvm/test/CodeGen/PowerPC/shift-cmp.ll
  llvm/test/CodeGen/X86/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll
  llvm/test/CodeGen/X86/hoist-and-by-const-from-shl-in-eqcmp-zero.ll

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