[jdk21u-dev] RFR: 8369947: Bytecode rewriting causes Java heap corruption on RISC-V [v2]

[Feilong Jiang]

> This pull request contains a backport of commit [46251993](https://github.com/openjdk/jdk/commit/462519935827e25475f2fb35746ad81a14bc5da7) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> Backport is unclean, same approximate fix with one extra `LoadLoad` barrier in `TemplateTable::fast_xaccess`.

Feilong Jiang has updated the pull request incrementally with one additional commit since the last revision:

  fix build

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2417/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2417/files/71a9d762..816bdd54

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2417&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2417&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2417.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2417/head:pull/2417

PR: https://git.openjdk.org/jdk21u-dev/pull/2417