[PATCH] D74060: [KnownBits] Move AND, OR and XOR logic into KnownBits

[Jay Foad via Phabricator via llvm-commits]

foad created this revision.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.
foad added reviewers: nikic, RKSimon, lebedev.ri, bjope.

There are at least three clients for KnownBits calculations:
ValueTracking, SelectionDAG and GlobalISel. To reduce duplication the
common logic should be moved out of these clients and into KnownBits
itself.

This patch does this for AND, OR and XOR calculations by implementing
and using appropriate operator overloads KnownBits::operator& etc.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D74060

Files:
  llvm/include/llvm/Support/KnownBits.h
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/lib/CodeGen/GlobalISel/GISelKnownBits.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/lib/Support/KnownBits.cpp
  llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  llvm/unittests/Support/KnownBitsTest.cpp

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