[llvm] [DAG] Refactor X86 combineVSelectWithAllOnesOrZeros fold into a generic DAG Combine (PR #145298)

[via llvm-commits]

woruyu wrote:

Note 2: I have sorted out all the testcase changes
1. arm64-zip.ll concatbinop.ll sat-add.ll select_cc.ll vselect-ext.ll fpclamptosat_vec.ll minnum-maxnum-intrinsics.ll
2. 




https://github.com/llvm/llvm-project/pull/145298