Integrated: 8334247: [PPC64] Consider trap based nmethod entry barriers

[Martin Doerr]

On Thu, 20 Mar 2025 15:41:56 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> We can shrink nmethod entry barriers to 4 instructions (from 8) using conditional trap instructions. Some benchmarks seem to show very small improvements. At least the code size reduction is an advantage.

This pull request has now been integrated.

Changeset: 112d8852
Author:    Martin Doerr <mdoerr at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/112d88523d9d75829594da466c9b66dfe157cc3e
Stats:     67 lines in 8 files changed: 46 ins; 2 del; 19 mod

8334247: [PPC64] Consider trap based nmethod entry barriers

Reviewed-by: ssarathi, rrich

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PR: https://git.openjdk.org/jdk/pull/24135