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Unverified Commit 945eeb2d authored by Yingwei Zheng's avatar Yingwei Zheng Committed by GitHub
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[InstCombine] Simplify `(X / C0) * C1 + (X % C0) * C2` to `(X / C0) * (C1 - C2... 

[InstCombine] Simplify `(X / C0) * C1 + (X % C0) * C2` to `(X / C0) * (C1 - C2 * C0) + X * C2` (#76285)

Since `DivRemPairPass` runs after `ReassociatePass` in the optimization
pipeline, I decided to do this simplification in `InstCombine`.

Alive2: https://alive2.llvm.org/ce/z/Jgsiqf
Fixes #76128.
parent d1493709
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