Hi all, This change eliminates more box cache usages when running with `--enable-preview`: * The majority of the change is contributed by @xmas92 who disabled CDS loading an archived cache. * There's an autobox cache cast in C2 that needed to be disabled.
Notably, this change does not prevent the `XXXCache`'s `cache` variables from being CDS archived. This is due to the fact that the infrastructure is common to preview and non-preview mode, and the code complexity is not justifiable when the cost is storing five `null`s. Instead, it is ensured that the cache is never read from. Testing: tiers 1-4. ------------- Commit messages: - Harden CDS dumping with HotSpot assertion. - Reviewer feedback on Java code cleanup. - Merge branch 'lworld' into JDK-8379148 - Clean up autobox check coce. - Skip JVMCI autobox cache if preview is enabled. - Merge branch 'lworld' into JDK-8379148 - Re-commit Axel's patch. Changes: https://git.openjdk.org/valhalla/pull/2249/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2249&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8379148 Stats: 112 lines in 7 files changed: 52 ins; 0 del; 60 mod Patch: https://git.openjdk.org/valhalla/pull/2249.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2249/head:pull/2249 PR: https://git.openjdk.org/valhalla/pull/2249
