To re-enable the autobox cache, this patch reverts (parts of) [JDK-8369921](https://bugs.openjdk.org/browse/JDK-8369921), [JDK-8378476](https://bugs.openjdk.org/browse/JDK-8378476), deopt parts of [JDK-8378531](https://bugs.openjdk.org/browse/JDK-8378531) and [JDK-8379148](https://bugs.openjdk.org/browse/JDK-8379148).
I had to modify the `newCacheArray` methods to return a non-flattened array to avoid buffering. I wasn't sure about the comments above the `valueOf` methods: https://github.com/openjdk/valhalla/commit/b3ccb6abfdb6e2bff59a7d79bf01b669ac319257#diff-6136f7a80110ec00bf9a0b7da9943eb2fc33025ab400bc1f70153c1b2ac36993R146 Should they be reverted too? For now, I left them as is. Thanks, Tobias --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - JDK-8383559 Changes: https://git.openjdk.org/valhalla/pull/2390/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2390&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8383559 Stats: 168 lines in 9 files changed: 56 ins; 50 del; 62 mod Patch: https://git.openjdk.org/valhalla/pull/2390.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2390/head:pull/2390 PR: https://git.openjdk.org/valhalla/pull/2390
