Craig Topper 550fab53e1 [RISCV] Fold (sub C, (xor (setcc), 1)) -> (add (setcc), C-1). ...

Extracted from D131729 where we handled C==0. It's now generalized
to more constants.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D132000

2022-08-17 09:50:08 -07:00

500 KiB

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