[llvm] [InstCombine] lshr (mul (X, 2^N + 1)), N -> add (X, lshr(X, N)) (PR #90295)

[Yingwei Zheng via llvm-commits]

https://github.com/dtcxzyw approved this pull request.

LGTM if https://github.com/llvm/llvm-project/pull/90295/files#r1602406923 is not an issue. Thank you!


https://github.com/llvm/llvm-project/pull/90295