[llvm] [InstCombine] Fold select of clamped shifts (PR #114797)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> BTW, I think we can generalize this fold with a recursive function like simplifyWithCond. 

Or just reusing CondContext.


https://github.com/llvm/llvm-project/pull/114797