15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 #ifndef SHARE_OOPS_MARKWORD_INLINE_HPP
26 #define SHARE_OOPS_MARKWORD_INLINE_HPP
27 
28 #include "oops/markWord.hpp"
29 
30 #include "oops/compressedOops.inline.hpp"
31 
32 narrowKlass markWord::narrow_klass() const {
33 #ifdef _LP64
34   assert(UseCompactObjectHeaders, "only used with compact object headers");
35   return narrowKlass(value() >> klass_shift);
36 #else
37   ShouldNotReachHere();
38   return 0;
39 #endif
40 }
41 
42 markWord markWord::set_narrow_klass(narrowKlass narrow_klass) const {
43 #ifdef _LP64
44   assert(UseCompactObjectHeaders, "only used with compact object headers");
45   return markWord((value() & ~klass_mask_in_place) | ((uintptr_t) narrow_klass << klass_shift));
46 #else
47   ShouldNotReachHere();
48   return markWord(0);
49 #endif
50 }
51 
52 Klass* markWord::klass() const {
53 #ifdef _LP64
54   assert(UseCompactObjectHeaders, "only used with compact object headers");
55   return CompressedKlassPointers::decode_not_null(narrow_klass());

15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 #ifndef SHARE_OOPS_MARKWORD_INLINE_HPP
26 #define SHARE_OOPS_MARKWORD_INLINE_HPP
27 
28 #include "oops/markWord.hpp"
29 
30 #include "oops/compressedOops.inline.hpp"
31 
32 narrowKlass markWord::narrow_klass() const {
33 #ifdef _LP64
34   assert(UseCompactObjectHeaders, "only used with compact object headers");
35   return narrowKlass(value32() >> klass_shift);
36 #else
37   ShouldNotReachHere();
38   return 0;
39 #endif
40 }
41 
42 markWord markWord::set_narrow_klass(narrowKlass narrow_klass) const {
43 #ifdef _LP64
44   assert(UseCompactObjectHeaders, "only used with compact object headers");
45   return markWord((value() & ~klass_mask_in_place) | ((uintptr_t) narrow_klass << klass_shift));
46 #else
47   ShouldNotReachHere();
48   return markWord(0);
49 #endif
50 }
51 
52 Klass* markWord::klass() const {
53 #ifdef _LP64
54   assert(UseCompactObjectHeaders, "only used with compact object headers");
55   return CompressedKlassPointers::decode_not_null(narrow_klass());