src/hotspot/share/gc/shared/c2/barrierSetC2.cpp

rev 50537 : [mq]: rename_on_heap

*** 39,49 ****
  
  bool C2Access::needs_cpu_membar() const {
    bool mismatched = (_decorators & C2_MISMATCHED) != 0;
    bool is_unordered = (_decorators & MO_UNORDERED) != 0;
    bool anonymous = (_decorators & C2_UNSAFE_ACCESS) != 0;
!   bool on_heap = (_decorators & IN_HEAP) != 0;
  
    bool is_write = (_decorators & C2_WRITE_ACCESS) != 0;
    bool is_read = (_decorators & C2_READ_ACCESS) != 0;
    bool is_atomic = is_read && is_write;
  
--- 39,49 ----
  
  bool C2Access::needs_cpu_membar() const {
    bool mismatched = (_decorators & C2_MISMATCHED) != 0;
    bool is_unordered = (_decorators & MO_UNORDERED) != 0;
    bool anonymous = (_decorators & C2_UNSAFE_ACCESS) != 0;
!   bool in_heap = (_decorators & IN_HEAP) != 0;
  
    bool is_write = (_decorators & C2_WRITE_ACCESS) != 0;
    bool is_read = (_decorators & C2_READ_ACCESS) != 0;
    bool is_atomic = is_read && is_write;
  
*** 56,66 ****
      // We will need memory barriers unless we can determine a unique
      // alias category for this reference.  (Note:  If for some reason
      // the barriers get omitted and the unsafe reference begins to "pollute"
      // the alias analysis of the rest of the graph, either Compile::can_alias
      // or Compile::must_alias will throw a diagnostic assert.)
!     if (!on_heap || !is_unordered || (mismatched && !_addr.type()->isa_aryptr())) {
        return true;
      }
    }
  
    return false;
--- 56,66 ----
      // We will need memory barriers unless we can determine a unique
      // alias category for this reference.  (Note:  If for some reason
      // the barriers get omitted and the unsafe reference begins to "pollute"
      // the alias analysis of the rest of the graph, either Compile::can_alias
      // or Compile::must_alias will throw a diagnostic assert.)
!     if (!in_heap || !is_unordered || (mismatched && !_addr.type()->isa_aryptr())) {
        return true;
      }
    }
  
    return false;