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Z: Remove bitwise compress/expand recognition #21613

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Spencer-Comin
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With bitwise compress/expand IL opcodes implemented for Z recognition of Long and Integer compress and expand methods will happen in platform generic code, rendering the Z specific recognition redundant.

Relies on eclipse-omr/omr#7721 for these methods to continue to be accelerated.

With bitwise compress/expand IL opcodes implemented for Z recognition
of Long and Integer compress and expand methods will happen in
platform generic code, rendering the Z specific recognition redundant.

Signed-off-by: Spencer Comin <spencer.comin@ibm.com>
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@r30shah r30shah left a comment

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Trivial OpenJ9 changes, looks good to me, will checkout OMR PR in details, but changes in this PR should be good.

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r30shah commented May 30, 2025

Is this relevant now?

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