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 */ 23 package org.graalvm.compiler.nodes.calc; 24 25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_40; 26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_2; 27 28 import org.graalvm.compiler.core.common.type.IntegerStamp; 29 import org.graalvm.compiler.core.common.type.Stamp; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.nodeinfo.NodeInfo; 32 import org.graalvm.compiler.nodes.ValueNode; 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 }