519 // To use Atomic::inc(jshort* dest) and Atomic::dec(jshort* dest), the address must be specially
 520 // aligned, such that (*dest) occupies the upper 16 bits of an aligned 32-bit word. The best way to
 521 // achieve is to place your short value next to another short value, which doesn't need atomic ops.
 522 //
 523 // Example
 524 //  ATOMIC_SHORT_PAIR(
 525 //    volatile short _refcount,  // needs atomic operation
 526 //    unsigned short _length     // number of UTF8 characters in the symbol (does not need atomic op)
 527 //  );
 528 
 529 #ifdef VM_LITTLE_ENDIAN
 530   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
 531     non_atomic_decl;                                       \
 532     atomic_decl
 533 #else
 534   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
 535     atomic_decl;                                           \
 536     non_atomic_decl
 537 #endif
 538 














 539 #endif // SHARE_VM_UTILITIES_MACROS_HPP

 519 // To use Atomic::inc(jshort* dest) and Atomic::dec(jshort* dest), the address must be specially
 520 // aligned, such that (*dest) occupies the upper 16 bits of an aligned 32-bit word. The best way to
 521 // achieve is to place your short value next to another short value, which doesn't need atomic ops.
 522 //
 523 // Example
 524 //  ATOMIC_SHORT_PAIR(
 525 //    volatile short _refcount,  // needs atomic operation
 526 //    unsigned short _length     // number of UTF8 characters in the symbol (does not need atomic op)
 527 //  );
 528 
 529 #ifdef VM_LITTLE_ENDIAN
 530   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
 531     non_atomic_decl;                                       \
 532     atomic_decl
 533 #else
 534   #define ATOMIC_SHORT_PAIR(atomic_decl, non_atomic_decl)  \
 535     atomic_decl;                                           \
 536     non_atomic_decl
 537 #endif
 538 
 539 #if INCLUDE_CDS && INCLUDE_ALL_GCS && defined(_LP64) && !defined(_WINDOWS)
 540 #define INCLUDE_CDS_JAVA_HEAP 1
 541 #define CDS_JAVA_HEAP_ONLY(x) x
 542 #define NOT_CDS_JAVA_HEAP(x)
 543 #define NOT_CDS_JAVA_HEAP_RETURN
 544 #define NOT_CDS_JAVA_HEAP_RETURN_(code)
 545 #else
 546 #define INCLUDE_CDS_JAVA_HEAP 0
 547 #define CDS_JAVA_HEAP_ONLY(x)
 548 #define NOT_CDS_JAVA_HEAP(x) x
 549 #define NOT_CDS_JAVA_HEAP_RETURN        {}
 550 #define NOT_CDS_JAVA_HEAP_RETURN_(code) { return code; }
 551 #endif
 552 
 553 #endif // SHARE_VM_UTILITIES_MACROS_HPP