[llvm] Reland "[AMDGPU] Add new llvm.amdgcn.wave.shuffle intrinsic (#167372)" (PR #174614)

[via llvm-commits]

saxlungs wrote:

> The CodeGen/AMDGPU/llvm.amdgcn.wave.shuffle.ll test is failing on my system after this change. How to reproduce:
> 
> ```
> cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=AMDGPU -DLLVM_LINK_LLVM_DYLIB=ON -S llvm -B wave-shuffle-build
> ninja -C wave-shuffle-build/ check-all
> ```

Thanks, I'll look into this!

https://github.com/llvm/llvm-project/pull/174614