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

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   1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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  */


  33 import org.graalvm.compiler.nodes.spi.Lowerable;
  34 import org.graalvm.compiler.nodes.spi.LoweringTool;
  35 
  36 @NodeInfo(cycles = CYCLES_40, size = SIZE_2)
  37 public abstract class IntegerDivRemNode extends FixedBinaryNode implements Lowerable {
  38 
  39     public static final NodeClass<IntegerDivRemNode> TYPE = NodeClass.create(IntegerDivRemNode.class);
  40 
  41     public enum Op {
  42         DIV,
  43         REM
  44     }
  45 
  46     public enum Type {
  47         SIGNED,
  48         UNSIGNED
  49     }
  50 
  51     private final Op op;
  52     private final Type type;

  53 
  54     protected IntegerDivRemNode(NodeClass<? extends IntegerDivRemNode> c, Stamp stamp, Op op, Type type, ValueNode x, ValueNode y) {
  55         super(c, stamp, x, y);
  56         this.op = op;
  57         this.type = type;




  58     }
  59 
  60     public final Op getOp() {
  61         return op;
  62     }
  63 
  64     public final Type getType() {
  65         return type;
  66     }
  67 
  68     @Override
  69     public void lower(LoweringTool tool) {
  70         tool.getLowerer().lower(this, tool);
  71     }
  72 
  73     @Override
  74     public boolean canDeoptimize() {
  75         return !(getY().stamp() instanceof IntegerStamp) || ((IntegerStamp) getY().stamp()).contains(0);
  76     }
  77 }
   1 /*
   2  * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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  */


  33 import org.graalvm.compiler.nodes.spi.Lowerable;
  34 import org.graalvm.compiler.nodes.spi.LoweringTool;
  35 
  36 @NodeInfo(cycles = CYCLES_40, size = SIZE_2)
  37 public abstract class IntegerDivRemNode extends FixedBinaryNode implements Lowerable {
  38 
  39     public static final NodeClass<IntegerDivRemNode> TYPE = NodeClass.create(IntegerDivRemNode.class);
  40 
  41     public enum Op {
  42         DIV,
  43         REM
  44     }
  45 
  46     public enum Type {
  47         SIGNED,
  48         UNSIGNED
  49     }
  50 
  51     private final Op op;
  52     private final Type type;
  53     private final boolean canDeopt;
  54 
  55     protected IntegerDivRemNode(NodeClass<? extends IntegerDivRemNode> c, Stamp stamp, Op op, Type type, ValueNode x, ValueNode y) {
  56         super(c, stamp, x, y);
  57         this.op = op;
  58         this.type = type;
  59 
  60         // Assigning canDeopt during constructor, because it must never change during lifetime of
  61         // the node.
  62         this.canDeopt = ((IntegerStamp) getY().stamp()).contains(0);
  63     }
  64 
  65     public final Op getOp() {
  66         return op;
  67     }
  68 
  69     public final Type getType() {
  70         return type;
  71     }
  72 
  73     @Override
  74     public void lower(LoweringTool tool) {
  75         tool.getLowerer().lower(this, tool);
  76     }
  77 
  78     @Override
  79     public boolean canDeoptimize() {
  80         return canDeopt;
  81     }
  82 }
src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerDivRemNode.java
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