> Revert [JDK-8152664](https://bugs.openjdk.org/browse/JDK-8152664) RFE > [changes](https://github.com/openjdk/jdk/commit/b853eb7f5ca24eeeda18acbb14287f706499c365) > which was used for AOT [JEP 295](https://openjdk.org/jeps/295) > implementation in JDK 9. The code was left in HotSpot assuming it will help > in a future. But during work on Leyden we decided to not use it. In Leyden > cached compiled code will be restored in CodeCache as normal nmethods: no > need to change VM's runtime and GC code to process them. > > I may work on optimizing `CodeBlob` and `nmethod` fields layout to reduce > header size in separate changes. In these changes I did simple fields > reordering to keep small (1 byte) fields together. > > I do not see (and not expected) performance difference with these changes. > > Tested tier1-5, xcomp, stress. Running performance testing. > > I need help with testing on platforms which Oracle does not support.
Vladimir Kozlov 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 five additional commits since the last revision: - Address comments - Merge branch 'master' into 8329332 - Removed not_used state of nmethod - remove trailing whitespace - 8329332: Remove CompiledMethod and CodeBlobLayout classes ------------- Changes: - all: https://git.openjdk.org/jdk/pull/18554/files - new: https://git.openjdk.org/jdk/pull/18554/files/246ff68a..33768fb2 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=18554&range=02 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18554&range=01-02 Stats: 9283 lines in 197 files changed: 3058 ins; 4514 del; 1711 mod Patch: https://git.openjdk.org/jdk/pull/18554.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18554/head:pull/18554 PR: https://git.openjdk.org/jdk/pull/18554
