[llvm] [AArch64] Add bitcasts for lowering saturating add/sub and shift intrinsics. (PR #161840)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

Sorry for the late response - I have been away. This sounds like it is probably fine given all the options - nothing will be perfect and the alternatives seem worse. This should allow the bitcasts to be optimized away if needed and new node names are fairly trivial to add at this point.

Is the list of commented out instructions all the ones that are needed? (And there are none with i8/i16 types?)

https://github.com/llvm/llvm-project/pull/161840