--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/calc/IntegerDivRemNode.java 2017-02-15 17:07:00.371583909 -0800 @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package org.graalvm.compiler.nodes.calc; + +import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_40; +import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_2; + +import org.graalvm.compiler.core.common.type.IntegerStamp; +import org.graalvm.compiler.core.common.type.Stamp; +import org.graalvm.compiler.graph.NodeClass; +import org.graalvm.compiler.nodeinfo.NodeInfo; +import org.graalvm.compiler.nodes.ValueNode; +import org.graalvm.compiler.nodes.spi.Lowerable; +import org.graalvm.compiler.nodes.spi.LoweringTool; + +@NodeInfo(cycles = CYCLES_40, size = SIZE_2) +public abstract class IntegerDivRemNode extends FixedBinaryNode implements Lowerable { + + public static final NodeClass TYPE = NodeClass.create(IntegerDivRemNode.class); + + public enum Op { + DIV, + REM + } + + public enum Type { + SIGNED, + UNSIGNED + } + + private final Op op; + private final Type type; + + protected IntegerDivRemNode(NodeClass c, Stamp stamp, Op op, Type type, ValueNode x, ValueNode y) { + super(c, stamp, x, y); + this.op = op; + this.type = type; + } + + public final Op getOp() { + return op; + } + + public final Type getType() { + return type; + } + + @Override + public void lower(LoweringTool tool) { + tool.getLowerer().lower(this, tool); + } + + @Override + public boolean canDeoptimize() { + return !(getY().stamp() instanceof IntegerStamp) || ((IntegerStamp) getY().stamp()).contains(0); + } +}