[llvm] [X86][GISEL] Lower Vector shuffle (PR #201055)

[via llvm-commits]

mahesh-attarde wrote:

Hi @RKSimon @arsenm, I am ramping up `SHUFFLE_VECTOR` for GISEL. This is initial patch laying out structure, provide idea.
Before I kick of with target specific shuffles I wanted to get your early feedback on how this is moving. I would appreciate your feedback.


https://github.com/llvm/llvm-project/pull/201055