14 *
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/compressedOops.inline.hpp"
29 #include "oops/markWord.hpp"
30
31 narrowKlass markWord::narrow_klass() const {
32 #ifdef _LP64
33 assert(UseCompactObjectHeaders, "only used with compact object headers");
34 return narrowKlass(value() >> klass_shift);
35 #else
36 ShouldNotReachHere();
37 return 0;
38 #endif
39 }
40
41 markWord markWord::set_narrow_klass(narrowKlass narrow_klass) const {
42 #ifdef _LP64
43 assert(UseCompactObjectHeaders, "only used with compact object headers");
44 return markWord((value() & ~klass_mask_in_place) | ((uintptr_t) narrow_klass << klass_shift));
45 #else
46 ShouldNotReachHere();
47 return markWord(0);
48 #endif
49 }
50
51 Klass* markWord::klass() const {
52 #ifdef _LP64
53 assert(UseCompactObjectHeaders, "only used with compact object headers");
54 return CompressedKlassPointers::decode_not_null(narrow_klass());
|
14 *
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/compressedOops.inline.hpp"
29 #include "oops/markWord.hpp"
30
31 narrowKlass markWord::narrow_klass() const {
32 #ifdef _LP64
33 assert(UseCompactObjectHeaders, "only used with compact object headers");
34 return narrowKlass(value32() >> klass_shift);
35 #else
36 ShouldNotReachHere();
37 return 0;
38 #endif
39 }
40
41 markWord markWord::set_narrow_klass(narrowKlass narrow_klass) const {
42 #ifdef _LP64
43 assert(UseCompactObjectHeaders, "only used with compact object headers");
44 return markWord((value() & ~klass_mask_in_place) | ((uintptr_t) narrow_klass << klass_shift));
45 #else
46 ShouldNotReachHere();
47 return markWord(0);
48 #endif
49 }
50
51 Klass* markWord::klass() const {
52 #ifdef _LP64
53 assert(UseCompactObjectHeaders, "only used with compact object headers");
54 return CompressedKlassPointers::decode_not_null(narrow_klass());
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