RFR: 8316180: Thread-local backoff for secondary_super_cache updates

[Aleksey Shipilev]

On Wed, 20 Sep 2023 14:46:41 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> You're using 64 bit instructions, despite `uint32_t _backoff_secondary_super_miss;`. That should get fixed.

Oh, on AArch64, right. x86_64 looks fine, uses 32-bit `subl`/`movl` properly.

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PR Comment: https://git.openjdk.org/jdk/pull/15718#issuecomment-1727886840