[clang] [CIR][X86]Implement handling for shiftleft/shiftright builtins in CIR (PR #175049)

[Priyanshu Kumar via cfe-commits]

Priyanshu3820 wrote:

> This looks good, but it needs to be rebased to resolve merge conflicts.

Will do that. Currently, I am out of town. I'll be back by next week.

https://github.com/llvm/llvm-project/pull/175049