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. If this is accepted I think we could push the usage of `OopCopyResult` changes into the openjdk/jdk and thereby shrinking the lworld patch. ------------- PR Comment: https://git.openjdk.org/valhalla/pull/1792#issuecomment-3645623111
