Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8174164

SafePointNode::_replaced_nodes breaks with irreducible loops

    Details

    • Subcomponent:
    • Resolved In Build:
      b159

      Backports

        Description

        Handling of SafePointNode::_replaced_nodes is incompatible with irreducible loops: replaced nodes can be propagated and applied before all predecessor blocks are processed which can lead to a broken graph. This was observed by one of our customers (crash in the compiler). The compilation in that case is an OSR compilation: OSR compilations can cause irreducible loops to appear even if the methods to be compiled have no irreducible loop.

          Issue Links

            Activity

            Hide
            hgupdate HG Updates added a comment -
            URL: http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/35db0413819a
            User: kvn
            Date: 2017-02-16 02:24:05 +0000
            Show
            hgupdate HG Updates added a comment - URL: http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/35db0413819a User: kvn Date: 2017-02-16 02:24:05 +0000
            Hide
            hgupdate HG Updates added a comment -
            URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/35db0413819a
            User: lana
            Date: 2017-03-01 20:18:00 +0000
            Show
            hgupdate HG Updates added a comment - URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/35db0413819a User: lana Date: 2017-03-01 20:18:00 +0000

              People

              • Assignee:
                roland Roland Westrelin
                Reporter:
                roland Roland Westrelin
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: