RFR: 8288904: Incorrect memory ordering in UL [v2]

[Johan Sjölén]

> Please review this fix for JDK-8288904, thank you.
> 
> Currently running tier1-3 tests.

Johan Sjölén has updated the pull request incrementally with one additional commit since the last revision:

  Comment the loadstore

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9225/files
  - new: https://git.openjdk.org/jdk/pull/9225/files/b13a0fbe..31417665

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9225&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9225&range=00-01

  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9225.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9225/head:pull/9225

PR: https://git.openjdk.org/jdk/pull/9225