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Enhancement
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Resolution: Fixed
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P4
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24
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b27
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riscv
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linux
There is no need for `revb_w` to reverse bytes for each 32-bit word. All the callers only care about the lower 32-bit word. This reimplement `revb_w` so that it only reverses bytes in lower 32-bit word and sign-extends the result. This makes `revb_w_w` duplicate. And the new `revb_w` will also emit less instructions than `revb_w_w`.
- links to
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Commit(master) openjdk/jdk/08d563ba
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Review(master) openjdk/jdk/22410