Noah Goldstein 6d839621da [InstCombine] Canonicalize (A & B_Pow2) eq/ne B_Pow2 patterns ...

1. A & B_Pow2 != B_Pow2 -> A & B_Pow2 == 0
   https://alive2.llvm.org/ce/z/KVUej4

2. A & B_Pow2 == B_Pow2 -> A & B_Pow2 != 0
   https://alive2.llvm.org/ce/z/PVv9FR

This allows the patterns to more easily be analyzed elsewhere.

Differential Revision: https://reviews.llvm.org/D141090

2023-01-09 12:48:28 +01:00

276 KiB

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