Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8209420

Track membars for volatile accesses so they can be properly optimized

XMLWordPrintable

    • b09

        Aarch64 emits a single instruction for volatile accesses that include the required memory barriers. For this to work properly the aarch64 backend has to locate membars that go with a memory access to elide them. This is currently implemented with some complicated pattern matching that has proven fragile and painful to maintain. This change introduces a new and robust logic to locate membars and memory accesses for volatile accesses.

              roland Roland Westrelin
              roland Roland Westrelin
              Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

                Created:
                Updated:
                Resolved: