On Fri, 12 Dec 2025 09:16:44 GMT, Stefan Karlsson <[email protected]> wrote:
> The lworld branch has support for null-restricted arrays, and to support this > code has been adjacent to the code that perform array copy check casts. The > code that performs the check casts used to be located inside the GC access > barriers, but the code that finally threw exceptions were located in the > runtime code. In the lworld branch the code that throws the check cast > exception and the new null pointer exception has been moved into the GC > access barriers. > > I propose that we revert back to the old style where the exception throwing > was somewhat decoupled from the GC access barriers. This pull request has now been integrated. Changeset: c661c30f Author: Stefan Karlsson <[email protected]> Committer: David Simms <[email protected]> URL: https://git.openjdk.org/valhalla/commit/c661c30fff54fa4a83f5c10cda24bf4a9b031632 Stats: 312 lines in 14 files changed: 88 ins; 62 del; 162 mod 8373567: [lworld] Move array copy exception throwing out of GC barriers Reviewed-by: aboldtch, tschatzl, fparain, heidinga ------------- PR: https://git.openjdk.org/valhalla/pull/1792
