12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
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 package org.graalvm.compiler.hotspot.aarch64;
26
27 import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL;
28 import static jdk.vm.ci.meta.JavaConstant.INT_0;
29 import static jdk.vm.ci.meta.JavaConstant.LONG_0;
30
31 import org.graalvm.compiler.core.aarch64.AArch64MoveFactory;
32 import org.graalvm.compiler.lir.LIRInstruction;
33
34 import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant;
35 import jdk.vm.ci.hotspot.HotSpotConstant;
36 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant;
37 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
38 import jdk.vm.ci.meta.AllocatableValue;
39 import jdk.vm.ci.meta.Constant;
40
41 public class AArch64HotSpotMoveFactory extends AArch64MoveFactory {
42
43 @Override
44 public boolean canInlineConstant(Constant c) {
45 if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) {
46 return true;
47 } else if (c instanceof HotSpotObjectConstant || c instanceof HotSpotMetaspaceConstant) {
48 return false;
49 } else {
50 return super.canInlineConstant(c);
51 }
52 }
53
54 @Override
55 public LIRInstruction createLoad(AllocatableValue dst, Constant src) {
56 Constant usedSource;
57 if (COMPRESSED_NULL.equals(src)) {
58 usedSource = INT_0;
59 } else if (src instanceof HotSpotObjectConstant && ((HotSpotObjectConstant) src).isNull()) {
60 usedSource = LONG_0;
61 } else {
62 usedSource = src;
63 }
64 if (usedSource instanceof HotSpotConstant) {
65 HotSpotConstant constant = (HotSpotConstant) usedSource;
66 if (constant.isCompressed()) {
67 return new AArch64HotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);
68 } else {
69 // XXX Do we need the constant table?
70 // return new SPARCHotSpotMove.LoadHotSpotObjectConstantFromTable(constant, dst,
71 // constantTableBaseProvider.getConstantTableBase());
72 return new AArch64HotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);
73 }
74 } else {
75 return super.createLoad(dst, usedSource);
|
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
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 package org.graalvm.compiler.hotspot.aarch64;
26
27 import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL;
28 import static jdk.vm.ci.meta.JavaConstant.INT_0;
29 import static jdk.vm.ci.meta.JavaConstant.LONG_0;
30
31 import org.graalvm.compiler.core.aarch64.AArch64MoveFactory;
32 import org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction;
33
34 import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant;
35 import jdk.vm.ci.hotspot.HotSpotConstant;
36 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant;
37 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
38 import jdk.vm.ci.meta.AllocatableValue;
39 import jdk.vm.ci.meta.Constant;
40
41 public class AArch64HotSpotMoveFactory extends AArch64MoveFactory {
42
43 @Override
44 public boolean canInlineConstant(Constant c) {
45 if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) {
46 return true;
47 } else if (c instanceof HotSpotObjectConstant || c instanceof HotSpotMetaspaceConstant) {
48 return false;
49 } else {
50 return super.canInlineConstant(c);
51 }
52 }
53
54 @Override
55 public AArch64LIRInstruction createLoad(AllocatableValue dst, Constant src) {
56 Constant usedSource;
57 if (COMPRESSED_NULL.equals(src)) {
58 usedSource = INT_0;
59 } else if (src instanceof HotSpotObjectConstant && ((HotSpotObjectConstant) src).isNull()) {
60 usedSource = LONG_0;
61 } else {
62 usedSource = src;
63 }
64 if (usedSource instanceof HotSpotConstant) {
65 HotSpotConstant constant = (HotSpotConstant) usedSource;
66 if (constant.isCompressed()) {
67 return new AArch64HotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);
68 } else {
69 // XXX Do we need the constant table?
70 // return new SPARCHotSpotMove.LoadHotSpotObjectConstantFromTable(constant, dst,
71 // constantTableBaseProvider.getConstantTableBase());
72 return new AArch64HotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);
73 }
74 } else {
75 return super.createLoad(dst, usedSource);
|