[llvm] [AArch64] AArch64TargetLowering::computeKnownBitsForTargetNode - add support for AArch64ISD::MOV/MVN constants (PR #154039)

[Yatao Wang via llvm-commits]

ningxinr wrote:

Hi @RKSimon, no rush but would you help me merge this PR when you have a minute? Many thanks for the help! (I am still working towards that commit access. :D )

https://github.com/llvm/llvm-project/pull/154039