Veera 2d5f07c828 [InstCombine] Fold X udiv Y to X lshr cttz(Y) if Y is a power of 2 (#121386) ...

Fixes #115767

This PR folds `X udiv Y` to `X lshr cttz(Y)` if Y is a power of two
since bitwise operations are faster than division.

Proof: https://alive2.llvm.org/ce/z/qHmLta

2025-01-11 13:56:13 +08:00

89 KiB

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