RFR: 8329726: Use non-short forward jumps in lightweight locking [v2]

[Roman Kennke]

> This turns a few short-jumps to long-jumps in x86 lightweight locking code paths. When running with -XX:+ShowMessageBoxOnError, MA::stop() generates more code and jccb is not sufficient to address this.
> 
> Two of the jccb are in ASSERT path anyway. However, another is also in a product path. We *could* generate jccb or jcc conditionally on ShowMessageBoxOnError, however, I don't think it is worth the trouble. WDYT?
> 
> Unfortunately, I could not make a simple test-case, because ShowMessageBoxOnError stops and waits on error, which would make jtreg time-out.
> 
> Testing:
>  - [x] manual test with dacapo as provided in the bug report
>  - [ ] tier1

Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:

  Shuffle code to preserve short-jump on non-assert paths

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18657/files
  - new: https://git.openjdk.org/jdk/pull/18657/files/4a8a0e64..025755b2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18657&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18657&range=00-01

  Stats: 6 lines in 1 file changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/18657.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18657/head:pull/18657

PR: https://git.openjdk.org/jdk/pull/18657