[PATCH] D142828: [ValueTracking] Add cases for additional ops in `isKnownNonZero`

[Noah Goldstein via Phabricator via llvm-commits]

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Add cases for the following ops:

- 0-X            -- https://alive2.llvm.org/ce/z/6C75Li
- bitreverse(X)  -- https://alive2.llvm.org/ce/z/SGG1q9
- bswap(X)       -- https://alive2.llvm.org/ce/z/p7pzwh
- ctpop(X)       -- https://alive2.llvm.org/ce/z/c5y3BC
- abs(X)         -- https://alive2.llvm.org/ce/z/yxXGz_ https://alive2.llvm.org/ce/z/rSRg4K
- uadd_sat(X, Y) -- https://alive2.llvm.org/ce/z/Zw-y4W https://alive2.llvm.org/ce/z/2NRqRz https://alive2.llvm.org/ce/z/M1OpF8


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142828

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Analysis/ValueTracking/known-non-zero.ll

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