Noah Goldstein 453d983d56 [InstCombine] Add transforms for (rem (shl Y, X), (shl Z, X)) ...

This is just filling in a missing case from D144225.

We treat `(shl Y, X)` and `(shl Z, X)` as `(mul Z, 1 << X)` and `(mul
Y, 1 << X)` then reuse the same transformations that already exist.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D147108

2023-07-06 14:46:34 -05:00

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