- backport of
- 
                    JDK-8211233 MemBarNode::trailing_membar() and MemBarNode::leading_membar() need to handle dying subgraphs better -           
- Resolved
 
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        JDK-8211233
        MemBarNode::trailing_membar() and MemBarNode::leading_membar() need to handle dying subgraphs better
    
