Optimize constructor to skip extra copy for registers. The tier1 tests are OK. The Specjvm2008 benchmark reports ~1% improvement.
------------- Commit messages: - 8341481: [perf] vframeStreamCommon constructor may be optimized - 8341481 [Perf] vframeStreamCommon constructor may be optimized Changes: https://git.openjdk.org/jdk/pull/22173/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22173&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8341481 Stats: 31 lines in 5 files changed: 11 ins; 1 del; 19 mod Patch: https://git.openjdk.org/jdk/pull/22173.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22173/head:pull/22173 PR: https://git.openjdk.org/jdk/pull/22173
