src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/nodes/arithmetic/IntegerMulHighNode.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/nodes/arithmetic/IntegerMulHighNode.java Tue Mar 12 09:49:10 2019 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-/*
- * Copyright (c) 2014, 2018, 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.replacements.nodes.arithmetic;
-
-import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;
-import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_2;
-
-import org.graalvm.compiler.core.common.type.ArithmeticOpTable;
-import org.graalvm.compiler.core.common.type.ArithmeticOpTable.BinaryOp.MulHigh;
-import org.graalvm.compiler.graph.NodeClass;
-import org.graalvm.compiler.graph.spi.Canonicalizable;
-import org.graalvm.compiler.graph.spi.CanonicalizerTool;
-import org.graalvm.compiler.lir.gen.ArithmeticLIRGeneratorTool;
-import org.graalvm.compiler.nodeinfo.NodeInfo;
-import org.graalvm.compiler.nodes.ConstantNode;
-import org.graalvm.compiler.nodes.NodeView;
-import org.graalvm.compiler.nodes.ValueNode;
-import org.graalvm.compiler.nodes.calc.BinaryArithmeticNode;
-import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
-
-import jdk.vm.ci.meta.Constant;
-import jdk.vm.ci.meta.PrimitiveConstant;
-import jdk.vm.ci.meta.Value;
-
-@NodeInfo(shortName = "*H", cycles = CYCLES_2, size = SIZE_2)
-public final class IntegerMulHighNode extends BinaryArithmeticNode<MulHigh> implements Canonicalizable.BinaryCommutative<ValueNode> {
- public static final NodeClass<IntegerMulHighNode> TYPE = NodeClass.create(IntegerMulHighNode.class);
-
- public IntegerMulHighNode(ValueNode x, ValueNode y) {
- super(TYPE, ArithmeticOpTable::getMulHigh, x, y);
- }
-
- @Override
- public void generate(NodeLIRBuilderTool nodeValueMap, ArithmeticLIRGeneratorTool gen) {
- Value a = nodeValueMap.operand(getX());
- Value b = nodeValueMap.operand(getY());
- nodeValueMap.setResult(this, gen.emitMulHigh(a, b));
- }
-
- @Override
- public ValueNode canonical(CanonicalizerTool tool, ValueNode forX, ValueNode forY) {
- ValueNode ret = super.canonical(tool, forX, forY);
- if (ret != this) {
- return ret;
- }
-
- if (forX.isConstant() && !forY.isConstant()) {
- // we try to swap and canonicalize
- ValueNode improvement = canonical(tool, forY, forX);
- if (improvement != this) {
- return improvement;
- }
- // if this fails we only swap
- return new IntegerMulHighNode(forY, forX);
- }
- return canonical(this, forY);
- }
-
- private static ValueNode canonical(IntegerMulHighNode self, ValueNode forY) {
- if (forY.isConstant()) {
- Constant c = forY.asConstant();
- if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
- long i = ((PrimitiveConstant) c).asLong();
- if (i == 0 || i == 1) {
- return ConstantNode.forIntegerStamp(self.stamp(NodeView.DEFAULT), 0);
- }
- }
- }
- return self;
- }
-}