RFR: 8375530: PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

[Aleksey Shipilev]

On Fri, 16 Jan 2026 12:06:31 GMT, David Briemann <dbriemann at openjdk.org> wrote:

> Workaround for this fix is setting -XX:-VerifyDataPointer

So `add(R11_scratch1, R12_scratch2, R12_scratch2);` completely ignores previous computations in `R11`? Looks fine.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/29279#pullrequestreview-3676883299