[llvm] [InstCombine] Fold (X << Y) / (X << Z) -> 1 << Y >> Z (PR #68863)
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Thu Oct 12 22:20:06 PDT 2023
XChy wrote:
For udiv, nsw in dividend should be preserved too. [Whole proofs](https://alive2.llvm.org/ce/z/A5b85F)
https://github.com/llvm/llvm-project/pull/68863
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