This addresses tendencies in previous update to increase fencing, scanning, and signalling that can increase contention, and slow down performance especially on ARM platforms. It also uses more ARM-friendly constructions to reduce overhead (leading to several changes that all of the same form),
------------- Commit messages: - Consistent constructions; remove no-longer needed checks; update internal docs - Reconcile constuctions - Fencing - experiment - Merge branch 'openjdk:master' into JDK-8336707 - Reactivation - Recheck - Uniform access expressions - Another diagnostic - More diagnostics - ... and 6 more: https://git.openjdk.org/jdk/compare/7312eea3...a1ad02fc Changes: https://git.openjdk.org/jdk/pull/21507/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21507&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8336707 Stats: 288 lines in 1 file changed: 42 ins; 95 del; 151 mod Patch: https://git.openjdk.org/jdk/pull/21507.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/21507/head:pull/21507 PR: https://git.openjdk.org/jdk/pull/21507
