[PATCH] D139691: [PowerPC] add a peephole to remove redundant swap instructions after vector splats on P8

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai added a comment.

Why do we need this?

1. For LE, why doesn't the swap removal pass remove the swaps rather than relying on this peephole?
2. For AIX, why do we have swaps? We certainly don't swap values we store by default on big endian, so the description of this doesn't explain it at all.


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