Yingwei Zheng 126016b662 [InstCombine] Simplify nonnull pointers (#128111) ...

This patch is the follow-up of
https://github.com/llvm/llvm-project/pull/127979. It introduces a helper
`simplifyNonNullOperand` to avoid duplicate logic. It also addresses the
one-use issue in `visitLoadInst`, as discussed in
https://github.com/llvm/llvm-project/pull/127979#issuecomment-2671013972.
The `nonnull` attribute is also supported. Proof:
https://alive2.llvm.org/ce/z/MCKgT9

2025-02-22 15:30:04 +08:00

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