src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerConvertNode.java
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File hotspot Sdiff src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc

src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerConvertNode.java

Print this page




  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  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 package org.graalvm.compiler.nodes.calc;
  24 
  25 import java.io.Serializable;
  26 import java.util.function.Function;
  27 
  28 import org.graalvm.compiler.core.common.type.ArithmeticOpTable;
  29 import org.graalvm.compiler.core.common.type.ArithmeticOpTable.IntegerConvertOp;
  30 import org.graalvm.compiler.core.common.type.IntegerStamp;

  31 import org.graalvm.compiler.core.common.type.Stamp;
  32 import org.graalvm.compiler.graph.NodeClass;
  33 import org.graalvm.compiler.graph.spi.CanonicalizerTool;
  34 import org.graalvm.compiler.nodeinfo.NodeInfo;
  35 import org.graalvm.compiler.nodes.ArithmeticOperation;
  36 import org.graalvm.compiler.nodes.ConstantNode;
  37 import org.graalvm.compiler.nodes.StructuredGraph;
  38 import org.graalvm.compiler.nodes.ValueNode;
  39 import org.graalvm.compiler.nodes.spi.ArithmeticLIRLowerable;

  40 
  41 import jdk.vm.ci.meta.Constant;
  42 import jdk.vm.ci.meta.ConstantReflectionProvider;
  43 
  44 /**
  45  * An {@code IntegerConvert} converts an integer to an integer of different width.
  46  */
  47 @NodeInfo
  48 public abstract class IntegerConvertNode<OP, REV> extends UnaryNode implements ArithmeticOperation, ConvertNode, ArithmeticLIRLowerable {
  49     @SuppressWarnings("rawtypes") public static final NodeClass<IntegerConvertNode> TYPE = NodeClass.create(IntegerConvertNode.class);
  50 
  51     protected final SerializableIntegerConvertFunction<OP> getOp;
  52     protected final SerializableIntegerConvertFunction<REV> getReverseOp;
  53 
  54     protected final int inputBits;
  55     protected final int resultBits;
  56 
  57     protected interface SerializableIntegerConvertFunction<T> extends Function<ArithmeticOpTable, IntegerConvertOp<T>>, Serializable {
  58     }
  59 
  60     protected IntegerConvertNode(NodeClass<? extends IntegerConvertNode<OP, REV>> c, SerializableIntegerConvertFunction<OP> getOp, SerializableIntegerConvertFunction<REV> getReverseOp, int inputBits,
  61                     int resultBits, ValueNode input) {
  62         super(c, getOp.apply(ArithmeticOpTable.forStamp(input.stamp())).foldStamp(inputBits, resultBits, input.stamp()), input);
  63         this.getOp = getOp;
  64         this.getReverseOp = getReverseOp;
  65         this.inputBits = inputBits;
  66         this.resultBits = resultBits;

  67     }
  68 
  69     public int getInputBits() {
  70         return inputBits;
  71     }
  72 
  73     public int getResultBits() {
  74         return resultBits;
  75     }
  76 
  77     protected final IntegerConvertOp<OP> getOp(ValueNode forValue) {
  78         return getOp.apply(ArithmeticOpTable.forStamp(forValue.stamp()));
  79     }
  80 
  81     @Override
  82     public final IntegerConvertOp<OP> getArithmeticOp() {
  83         return getOp(getValue());
  84     }
  85 
  86     @Override


 129             convert = graph.addOrUnique(convert);
 130         }
 131         return convert;
 132     }
 133 
 134     public static ValueNode convertUnsigned(ValueNode input, Stamp stamp) {
 135         return convert(input, stamp, true);
 136     }
 137 
 138     public static ValueNode convert(ValueNode input, Stamp stamp, boolean zeroExtend) {
 139         IntegerStamp fromStamp = (IntegerStamp) input.stamp();
 140         IntegerStamp toStamp = (IntegerStamp) stamp;
 141 
 142         ValueNode result;
 143         if (toStamp.getBits() == fromStamp.getBits()) {
 144             result = input;
 145         } else if (toStamp.getBits() < fromStamp.getBits()) {
 146             result = new NarrowNode(input, fromStamp.getBits(), toStamp.getBits());
 147         } else if (zeroExtend) {
 148             // toStamp.getBits() > fromStamp.getBits()
 149             result = new ZeroExtendNode(input, toStamp.getBits());
 150         } else {
 151             // toStamp.getBits() > fromStamp.getBits()
 152             result = new SignExtendNode(input, toStamp.getBits());
 153         }
 154 
 155         IntegerStamp resultStamp = (IntegerStamp) result.stamp();
 156         assert toStamp.getBits() == resultStamp.getBits();
 157         return result;
 158     }





 159 }


  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  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 package org.graalvm.compiler.nodes.calc;
  24 
  25 import java.io.Serializable;
  26 import java.util.function.Function;
  27 
  28 import org.graalvm.compiler.core.common.type.ArithmeticOpTable;
  29 import org.graalvm.compiler.core.common.type.ArithmeticOpTable.IntegerConvertOp;
  30 import org.graalvm.compiler.core.common.type.IntegerStamp;
  31 import org.graalvm.compiler.core.common.type.PrimitiveStamp;
  32 import org.graalvm.compiler.core.common.type.Stamp;
  33 import org.graalvm.compiler.graph.NodeClass;
  34 import org.graalvm.compiler.graph.spi.CanonicalizerTool;
  35 import org.graalvm.compiler.nodeinfo.NodeInfo;
  36 import org.graalvm.compiler.nodes.ArithmeticOperation;
  37 import org.graalvm.compiler.nodes.ConstantNode;
  38 import org.graalvm.compiler.nodes.StructuredGraph;
  39 import org.graalvm.compiler.nodes.ValueNode;
  40 import org.graalvm.compiler.nodes.spi.ArithmeticLIRLowerable;
  41 import org.graalvm.compiler.nodes.spi.StampInverter;
  42 
  43 import jdk.vm.ci.meta.Constant;
  44 import jdk.vm.ci.meta.ConstantReflectionProvider;
  45 
  46 /**
  47  * An {@code IntegerConvert} converts an integer to an integer of different width.
  48  */
  49 @NodeInfo
  50 public abstract class IntegerConvertNode<OP, REV> extends UnaryNode implements ArithmeticOperation, ConvertNode, ArithmeticLIRLowerable, StampInverter {
  51     @SuppressWarnings("rawtypes") public static final NodeClass<IntegerConvertNode> TYPE = NodeClass.create(IntegerConvertNode.class);
  52 
  53     protected final SerializableIntegerConvertFunction<OP> getOp;
  54     protected final SerializableIntegerConvertFunction<REV> getReverseOp;
  55 
  56     protected final int inputBits;
  57     protected final int resultBits;
  58 
  59     protected interface SerializableIntegerConvertFunction<T> extends Function<ArithmeticOpTable, IntegerConvertOp<T>>, Serializable {
  60     }
  61 
  62     protected IntegerConvertNode(NodeClass<? extends IntegerConvertNode<OP, REV>> c, SerializableIntegerConvertFunction<OP> getOp, SerializableIntegerConvertFunction<REV> getReverseOp, int inputBits,
  63                     int resultBits, ValueNode input) {
  64         super(c, getOp.apply(ArithmeticOpTable.forStamp(input.stamp())).foldStamp(inputBits, resultBits, input.stamp()), input);
  65         this.getOp = getOp;
  66         this.getReverseOp = getReverseOp;
  67         this.inputBits = inputBits;
  68         this.resultBits = resultBits;
  69         assert ((PrimitiveStamp) input.stamp()).getBits() == inputBits;
  70     }
  71 
  72     public int getInputBits() {
  73         return inputBits;
  74     }
  75 
  76     public int getResultBits() {
  77         return resultBits;
  78     }
  79 
  80     protected final IntegerConvertOp<OP> getOp(ValueNode forValue) {
  81         return getOp.apply(ArithmeticOpTable.forStamp(forValue.stamp()));
  82     }
  83 
  84     @Override
  85     public final IntegerConvertOp<OP> getArithmeticOp() {
  86         return getOp(getValue());
  87     }
  88 
  89     @Override


 132             convert = graph.addOrUnique(convert);
 133         }
 134         return convert;
 135     }
 136 
 137     public static ValueNode convertUnsigned(ValueNode input, Stamp stamp) {
 138         return convert(input, stamp, true);
 139     }
 140 
 141     public static ValueNode convert(ValueNode input, Stamp stamp, boolean zeroExtend) {
 142         IntegerStamp fromStamp = (IntegerStamp) input.stamp();
 143         IntegerStamp toStamp = (IntegerStamp) stamp;
 144 
 145         ValueNode result;
 146         if (toStamp.getBits() == fromStamp.getBits()) {
 147             result = input;
 148         } else if (toStamp.getBits() < fromStamp.getBits()) {
 149             result = new NarrowNode(input, fromStamp.getBits(), toStamp.getBits());
 150         } else if (zeroExtend) {
 151             // toStamp.getBits() > fromStamp.getBits()
 152             result = ZeroExtendNode.create(input, toStamp.getBits());
 153         } else {
 154             // toStamp.getBits() > fromStamp.getBits()
 155             result = SignExtendNode.create(input, toStamp.getBits());
 156         }
 157 
 158         IntegerStamp resultStamp = (IntegerStamp) result.stamp();
 159         assert toStamp.getBits() == resultStamp.getBits();
 160         return result;
 161     }
 162 
 163     @Override
 164     public Stamp invertStamp(Stamp outStamp) {
 165         return getArithmeticOp().invertStamp(inputBits, resultBits, outStamp);
 166     }
 167 }
src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerConvertNode.java
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File