[PATCH] D120953: [AArch64][SelectionDAG] Supports unpklo/hi instructions to reduce the number of loads

[Allen zhong via Phabricator via llvm-commits]

Allen added a comment.

@paulwalker-arm

  Thanks very much, I'm happy to try fix the above assert/crash firstly in another commit, and do you have some advice on how to figure out all those we directly support ?
    


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https://reviews.llvm.org/D120953