> @cl4es discovered that Stack Map generation in ClassFile API uses > `componentType` and `arrayType` for `aaload` `aastore` instructions, which > are currently quite slow. We can split out array class descriptors from class > or interfaces to support faster `arrayType` and `componentType` operations. > > Tentative, as I currently have no way to measure the actual impact of this > patch on the startup performance; however, this made the `ClassDesc` > implementations much cleaner.
Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains nine commits: - class or interface descriptor renamed for clarity - Merge branch 'master' of https://github.com/openjdk/jdk into feature/array-cd - Cleanup after merge - Merge branch 'master' of https://github.com/openjdk/jdk into feature/array-cd - Merge branch 'master' of https://github.com/openjdk/jdk into feature/array-cd - Compile error - Redundant import - Merge branch 'master' of https://github.com/openjdk/jdk into feature/array-cd - 8338544: Dedicated Array class descriptor implementation ------------- Changes: https://git.openjdk.org/jdk/pull/20665/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20665&range=01 Stats: 795 lines in 17 files changed: 428 ins; 239 del; 128 mod Patch: https://git.openjdk.org/jdk/pull/20665.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20665/head:pull/20665 PR: https://git.openjdk.org/jdk/pull/20665
