[llvm] [PowerPC ]convert `(setcc (and X, 1), 0, eq)` to `XORI (and X, 1), 1` (PR #168384)

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Mon Nov 17 09:59:53 PST 2025

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RolandF77 wrote:

> should this really be specific to powerpc

It changes 2 ISD operations into 2 ISD operations. At the platform independent level it is not clearly an optimization.

https://github.com/llvm/llvm-project/pull/168384

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