src/hotspot/share/utilities/macros.hpp

*** 607,636 ****
  #define OS_CPU_HEADER_INLINE(basename) XSTR(OS_CPU_HEADER_STEM(basename).inline.hpp)
  // basename<compiler>.hpp / basename<compiler>.inline.hpp
  #define COMPILER_HEADER(basename)        XSTR(COMPILER_HEADER_STEM(basename).hpp)
  #define COMPILER_HEADER_INLINE(basename) XSTR(COMPILER_HEADER_STEM(basename).inline.hpp)
  
- // To use Atomic::inc(jshort* dest) and Atomic::dec(jshort* dest), the address must be specially
- // aligned, such that (*dest) occupies the upper 16 bits of an aligned 32-bit word. The best way to
- // achieve is to place your short value next to another short value, which doesn't need atomic ops.
- //
- // Example
- //  ATOMIC_SHORT_PAIR(
- //    volatile short _refcount,  // needs atomic operation
- //    unsigned short _length     // number of UTF8 characters in the symbol (does not need atomic op)
- //  );
- 
- #ifdef VM_LITTLE_ENDIAN
-   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
-     non_atomic_decl;                                       \
-     atomic_decl
- #else
-   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
-     atomic_decl;                                           \
-     non_atomic_decl
- #endif
- 
  #if INCLUDE_CDS && INCLUDE_G1GC && defined(_LP64) && !defined(_WINDOWS)
  #define INCLUDE_CDS_JAVA_HEAP 1
  #define CDS_JAVA_HEAP_ONLY(x) x
  #define NOT_CDS_JAVA_HEAP(x)
  #define NOT_CDS_JAVA_HEAP_RETURN
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