[jdk11u-dev] RFR: 8258894: C2: Forbid GCM to move stores into loops [v2]

[Goetz Lindenmaier]

> I backport this for parity with 11.0.18-oracle.
> 
> Two copyrights had to be resolved.
> 
> I had to resolve two hunks in generateOptoStub.cpp. Simple.
> There is #ifdef SPARC code that is left out by the
> change. 
> I edited it canonically (quite obvious), but did not test it.

Goetz Lindenmaier has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  Backport f353fcf2569f5435d1410a83265c425d6385fc3f

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1401/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1401/files/6dbf5f3a..89eab5cc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1401&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1401&range=00-01

  Stats: 6278 lines in 225 files changed: 4812 ins; 593 del; 873 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1401.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1401/head:pull/1401

PR: https://git.openjdk.org/jdk11u-dev/pull/1401