src/hotspot/share/gc/g1/g1BlockOffsetTable.hpp

rev 55196 : 8225716: G1 GC: Undefined behaviour in G1BlockOffsetTablePart::block_at_or_preceding
Reviewed-by: duke

*** 63,73 ****
    // Bounds checking accessors:
    // For performance these have to devolve to array accesses in product builds.
    inline u_char offset_array(size_t index) const;
  
    void set_offset_array_raw(size_t index, u_char offset) {
!     _offset_array[index] = offset;
    }
  
    inline void set_offset_array(size_t index, u_char offset);
  
    inline void set_offset_array(size_t index, HeapWord* high, HeapWord* low);
--- 63,73 ----
    // Bounds checking accessors:
    // For performance these have to devolve to array accesses in product builds.
    inline u_char offset_array(size_t index) const;
  
    void set_offset_array_raw(size_t index, u_char offset) {
!     Atomic::store(offset, &_offset_array[index]);
    }
  
    inline void set_offset_array(size_t index, u_char offset);
  
    inline void set_offset_array(size_t index, HeapWord* high, HeapWord* low);