[PATCH] D71774: [RISCV] Optimize seteq/setne pattern expansions for better code size

[Lewis Revill via Phabricator via llvm-commits]

lewis-revill added a comment.

In D71774#1821760 <https://reviews.llvm.org/D71774#1821760>, @lenary wrote:

> This seems like a fun issue:
>
> - `addi` is compressible
> - `xor` is almost certainly easier to analyse (from the view of `KnownBits` and the like).
>
>   Have you seen any regressions in code generation from this change?


That's a fair comment, though I'd hope the situation where the result of the xor in this pattern is used for anything else later on would be extremely rare/impossible?


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  rL LLVM

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  https://reviews.llvm.org/D71774/new/

https://reviews.llvm.org/D71774