--- /dev/null 2017-03-16 11:03:49.895616831 -0700 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.amd64.test/src/org/graalvm/compiler/core/amd64/test/AMD64AddressLoweringTest.java 2017-11-03 23:57:46.207121319 -0700 @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2017, 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.core.amd64.test; + +import static org.junit.Assume.assumeTrue; + +import org.graalvm.compiler.asm.amd64.AMD64Address.Scale; +import org.graalvm.compiler.core.amd64.AMD64AddressLowering; +import org.graalvm.compiler.core.amd64.AMD64AddressNode; +import org.graalvm.compiler.core.test.GraalCompilerTest; +import org.graalvm.compiler.nodes.ConstantNode; +import org.graalvm.compiler.nodes.StructuredGraph; +import org.graalvm.compiler.nodes.ValueNode; +import org.graalvm.compiler.nodes.calc.AddNode; +import org.graalvm.compiler.nodes.calc.LeftShiftNode; +import org.graalvm.compiler.nodes.calc.NegateNode; +import org.graalvm.compiler.nodes.memory.address.AddressNode; +import org.junit.Assert; +import org.junit.Before; +import org.junit.Test; + +import jdk.vm.ci.amd64.AMD64; + +public class AMD64AddressLoweringTest extends GraalCompilerTest { + + private StructuredGraph graph; + private AMD64AddressLowering lowering; + + @Before + public void checkAMD64() { + assumeTrue("skipping AMD64 specific test", getTarget().arch instanceof AMD64); + graph = new StructuredGraph.Builder(getInitialOptions(), getDebugContext()).build(); + lowering = new AMD64AddressLowering(); + } + + @Test + public void convertBaseAndIndexToDisplacement() { + ValueNode base = graph.unique(const64(1000)); + ValueNode index = graph.unique(const64(10)); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times1, 1010); + } + + @Test + public void convertBaseToDisplacement() { + ValueNode constantAddress = graph.addOrUniqueWithInputs(const64(1000)); + AddressNode result = lowering.lower(constantAddress, null); + assertAddress(result, null, null, Scale.Times1, 1000); + } + + @Test + public void convertBaseAndShiftedIndexToDisplacement() { + ValueNode base = graph.addOrUniqueWithInputs(const64(1000)); + ValueNode index = graph.addOrUniqueWithInputs(new LeftShiftNode(const64(10), const32(1))); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times2, 1020); + } + + @Test + public void convertBaseAndNegatedShiftedIndexToDisplacement() { + ValueNode base = graph.addOrUniqueWithInputs(const64(1000)); + ValueNode index = graph.addOrUniqueWithInputs(new NegateNode(new LeftShiftNode(const64(10), const32(2)))); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times4, 960); + } + + @Test + public void convertNegatedBaseAndNegatedShiftedIndexToDisplacement() { + ValueNode base = graph.addOrUniqueWithInputs(new NegateNode(const64(1000))); + ValueNode index = graph.addOrUniqueWithInputs(new NegateNode(new LeftShiftNode(const64(10), const32(2)))); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times4, -1040); + } + + @Test + public void convertNegatedShiftedBaseAndNegatedIndexToDisplacement() { + ValueNode base = graph.addOrUniqueWithInputs(new NegateNode(new LeftShiftNode(const64(10), const32(2)))); + ValueNode index = graph.addOrUniqueWithInputs(new NegateNode(const64(1000))); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times4, -1040); + } + + @Test + public void convertTwoLevelsOfNegatedShiftedBaseAndNegatedIndexToDisplacement() { + ValueNode base = graph.addOrUniqueWithInputs(new NegateNode(new LeftShiftNode(new NegateNode(new LeftShiftNode(const64(500), const32(1))), const32(1)))); + ValueNode index = graph.addOrUniqueWithInputs(new NegateNode(new AddNode(new NegateNode(const64(13)), const64(3)))); + AddressNode result = lowering.lower(base, index); + assertAddress(result, null, null, Scale.Times4, 2010); + } + + private static ConstantNode const64(long value) { + return ConstantNode.forIntegerBits(Long.SIZE, value); + } + + private static ConstantNode const32(long value) { + return ConstantNode.forIntegerBits(Integer.SIZE, value); + } + + private static void assertAddress(AddressNode actual, ValueNode expectedBase, ValueNode expectedIndex, Scale expectedScale, int expectedDisplacement) { + AMD64AddressNode address = (AMD64AddressNode) actual; + Assert.assertEquals(expectedBase, address.getBase()); + Assert.assertEquals(expectedIndex, address.getIndex()); + Assert.assertEquals(expectedScale, address.getScale()); + Assert.assertEquals(expectedDisplacement, address.getDisplacement()); + } +}