[llvm] [DAG][X86]added shrd in combineor for bzhiq+shlq+or (PR #125734)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

> I question: should this be here, or would it make more sense in ISelDagtodag, or maybe both for maximum effect

I doubt it, sounds like duplication bloat for a rather niche fold - what would be your motivations for this?

https://github.com/llvm/llvm-project/pull/125734