src/share/vm/opto/graphKit.hpp

rev 10106 : 8087341: C2 doesn't optimize redundant memory operations with G1
Summary: effect of memory barrier in post barrier is too wide
Reviewed-by: duke

*** 832,841 ****
--- 832,842 ----
  
    // Helper functions to build synchronizations
    int next_monitor();
    Node* insert_mem_bar(int opcode, Node* precedent = NULL);
    Node* insert_mem_bar_volatile(int opcode, int alias_idx, Node* precedent = NULL);
+   void insert_store_load_for_barrier();
    // Optional 'precedent' is appended as an extra edge, to force ordering.
    FastLockNode* shared_lock(Node* obj);
    void shared_unlock(Node* box, Node* obj);
  
    // helper functions for the fast path/slow path idioms