On Fri, 23 Dec 2022 10:00:28 GMT, Erik Österlund <eosterlund at openjdk.org> wrote: > The testw register + immediate instruction is missing in the x86 assembler. It's used by generational ZGC. Let's add it. I'll proceed with testl. Cheers! ------------- PR: https://git.openjdk.org/jdk/pull/11772