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Unverified Commit 865c1fda authored by Yingwei Zheng's avatar Yingwei Zheng Committed by GitHub
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[InstCombine] Preserve NSW flags for neg instructions (#72548) 

Alive2: https://alive2.llvm.org/ce/z/F9HG3M

This missed optimization is discovered with the help of
https://github.com/AliveToolkit/alive2/pull/962.
parent 5353d3f5
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