[llvm] [RISCV] Add isel special case for (and (shl X, c2), c1) -> (slli_uw (srli x, c4-c2), c4). (PR #91638)
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Thu May 9 12:10:35 PDT 2024
topperc wrote:
> Emm, https://github.com/llvm/llvm-project/pull/91626 seems to perform better than this patch. BTW this patch converts some `slli` insts into `slli.uw`, which makes them less compressible.
>
>
Can you get reproducers?
https://github.com/llvm/llvm-project/pull/91638
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