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 package org.graalvm.compiler.hotspot.sparc;
  24 
  25 import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL;
  26 import static jdk.vm.ci.meta.JavaConstant.INT_0;
  27 import static jdk.vm.ci.meta.JavaConstant.LONG_0;
  28 
  29 import org.graalvm.compiler.core.sparc.SPARCLIRGenerator.ConstantTableBaseProvider;
  30 import org.graalvm.compiler.core.sparc.SPARCMoveFactory;
  31 import org.graalvm.compiler.lir.LIRInstruction;
  32 
  33 import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant;
  34 import jdk.vm.ci.hotspot.HotSpotConstant;

  35 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
  36 import jdk.vm.ci.meta.AllocatableValue;
  37 import jdk.vm.ci.meta.Constant;
  38 import jdk.vm.ci.meta.JavaConstant;
  39 
  40 public class SPARCHotSpotMoveFactory extends SPARCMoveFactory {
  41 
  42     public SPARCHotSpotMoveFactory(ConstantTableBaseProvider constantTableBaseProvider) {
  43         super(constantTableBaseProvider);
  44     }
  45 
  46     @Override
  47     public boolean canInlineConstant(JavaConstant c) {
  48         if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) {
  49             return true;
  50         } else if (c instanceof HotSpotObjectConstant) {
  51             return false;
  52         } else {
  53             return super.canInlineConstant(c);
  54         }
  55     }
  56 
  57     @Override
  58     public LIRInstruction createLoad(AllocatableValue dst, Constant src) {
  59         Constant usedSource;
  60         if (COMPRESSED_NULL.equals(src)) {
  61             usedSource = INT_0;
  62         } else if (src instanceof HotSpotObjectConstant && ((HotSpotObjectConstant) src).isNull()) {
  63             usedSource = LONG_0;
  64         } else {
  65             usedSource = src;
  66         }
  67         if (usedSource instanceof HotSpotConstant) {
  68             HotSpotConstant constant = (HotSpotConstant) usedSource;
  69             if (constant.isCompressed()) {
  70                 return new SPARCHotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);

  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 package org.graalvm.compiler.hotspot.sparc;
  24 
  25 import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL;
  26 import static jdk.vm.ci.meta.JavaConstant.INT_0;
  27 import static jdk.vm.ci.meta.JavaConstant.LONG_0;
  28 
  29 import org.graalvm.compiler.core.sparc.SPARCLIRGenerator.ConstantTableBaseProvider;
  30 import org.graalvm.compiler.core.sparc.SPARCMoveFactory;
  31 import org.graalvm.compiler.lir.LIRInstruction;
  32 
  33 import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant;
  34 import jdk.vm.ci.hotspot.HotSpotConstant;
  35 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant;
  36 import jdk.vm.ci.hotspot.HotSpotObjectConstant;
  37 import jdk.vm.ci.meta.AllocatableValue;
  38 import jdk.vm.ci.meta.Constant;

  39 
  40 public class SPARCHotSpotMoveFactory extends SPARCMoveFactory {
  41 
  42     public SPARCHotSpotMoveFactory(ConstantTableBaseProvider constantTableBaseProvider) {
  43         super(constantTableBaseProvider);
  44     }
  45 
  46     @Override
  47     public boolean canInlineConstant(Constant c) {
  48         if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) {
  49             return true;
  50         } else if (c instanceof HotSpotObjectConstant || c instanceof HotSpotMetaspaceConstant) {
  51             return false;
  52         } else {
  53             return super.canInlineConstant(c);
  54         }
  55     }
  56 
  57     @Override
  58     public LIRInstruction createLoad(AllocatableValue dst, Constant src) {
  59         Constant usedSource;
  60         if (COMPRESSED_NULL.equals(src)) {
  61             usedSource = INT_0;
  62         } else if (src instanceof HotSpotObjectConstant && ((HotSpotObjectConstant) src).isNull()) {
  63             usedSource = LONG_0;
  64         } else {
  65             usedSource = src;
  66         }
  67         if (usedSource instanceof HotSpotConstant) {
  68             HotSpotConstant constant = (HotSpotConstant) usedSource;
  69             if (constant.isCompressed()) {
  70                 return new SPARCHotSpotMove.LoadHotSpotObjectConstantInline(constant, dst);