[PATCH] D131445: [PPC] Expose the ZERO register as a constant physical register

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai added a comment.

While this is certainly correct, I am curious what prompted the change. Did it cause a test case failure somewhere? Did it prevent some optimization? If either of those is the case, I imagine we can produce a test case for this patch.


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  https://reviews.llvm.org/D131445/new/

https://reviews.llvm.org/D131445