RFR: 8267932: [lworld] JIT support for the L/Q model (step 2) [v2]

[Tobias Hartmann]

> Remaining changes (mostly intrinsics) and some small bug fixes after [JDK-8267846](https://bugs.openjdk.java.net/browse/JDK-8267846). I also strengthened some tests.
> 
> This should fix all JIT related failures in tier1 - 3 except for [JDK-8270098](https://bugs.openjdk.java.net/browse/JDK-8270098) which is a bug in mainline.
> 
> Best regards,
> Tobias

Tobias Hartmann has updated the pull request incrementally with one additional commit since the last revision:

  Added missing -XX:+UnlockExperimentalVMOptions

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

Changes:
  - all: https://git.openjdk.java.net/valhalla/pull/474/files
  - new: https://git.openjdk.java.net/valhalla/pull/474/files/08e0272d..5582c7a6

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=valhalla&pr=474&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=valhalla&pr=474&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/474.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/474/head:pull/474

PR: https://git.openjdk.java.net/valhalla/pull/474