[llvm] [InstCombine] signum: or (ashr X, BW-1), (lshr (-X), BW-1) --> scmp(X, 0) (PR #205365)

Yingwei Zheng via llvm-commits llvm-commits at lists.llvm.org
Tue Jun 23 11:02:56 PDT 2026

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dtcxzyw wrote:

Does this pattern come from some real-world libraries?


https://github.com/llvm/llvm-project/pull/205365

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