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Unverified Commit 26ce3e42 authored by Yingwei Zheng's avatar Yingwei Zheng Committed by GitHub
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[InstCombine] Preserve NSW flags for `lshr (mul nuw X, C1), C2 -> mul nuw nsw... 

[InstCombine] Preserve NSW flags for `lshr (mul nuw X, C1), C2 -> mul nuw nsw X, (C1 >> C2)` (#72625)

Alive2: https://alive2.llvm.org/ce/z/TU_V9M

This missed optimization is discovered with the help of
https://github.com/AliveToolkit/alive2/pull/962.
parent f049395f
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