--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.amd64.test/src/org/graalvm/compiler/core/amd64/test/MatchRuleTest.java 2017-02-15 16:56:52.293084867 -0800 @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2015, 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.junit.Before; +import org.junit.Test; + +import org.graalvm.compiler.lir.LIR; +import org.graalvm.compiler.lir.LIRInstruction; +import org.graalvm.compiler.lir.amd64.AMD64BinaryConsumer.MemoryConstOp; +import org.graalvm.compiler.lir.gen.LIRGenerationResult; +import org.graalvm.compiler.lir.jtt.LIRTest; +import org.graalvm.compiler.lir.phases.LIRPhase; +import org.graalvm.compiler.lir.phases.PreAllocationOptimizationPhase.PreAllocationOptimizationContext; + +import jdk.vm.ci.amd64.AMD64; +import jdk.vm.ci.code.TargetDescription; + +public class MatchRuleTest extends LIRTest { + private static LIR lir; + + @Before + public void checkAMD64() { + assumeTrue("skipping AMD64 specific test", getTarget().arch instanceof AMD64); + } + + public static int test1Snippet(TestClass o, TestClass b, TestClass c) { + if (o.x == 42) { + return b.z; + } else { + return c.y; + } + } + + /** + * Verifies, if the match rules in AMD64NodeMatchRules do work on the graphs by compiling and + * checking if the expected LIR instruction show up. + */ + @Test + public void test1() { + getLIRSuites().getPreAllocationOptimizationStage().appendPhase(new CheckPhase()); + compile(getResolvedJavaMethod("test1Snippet"), null); + boolean found = false; + for (LIRInstruction ins : lir.getLIRforBlock(lir.codeEmittingOrder()[0])) { + if (ins instanceof MemoryConstOp && ((MemoryConstOp) ins).getOpcode().toString().equals("CMP")) { + assertFalse("MemoryConstOp expected only once in first block", found); + found = true; + } + } + assertTrue("Memory compare must be in the LIR", found); + } + + public static class TestClass { + public int x; + public int y; + public int z; + + public TestClass(int x) { + super(); + this.x = x; + } + } + + public static class CheckPhase extends LIRPhase { + @Override + protected void run(TargetDescription target, LIRGenerationResult lirGenRes, PreAllocationOptimizationContext context) { + lir = lirGenRes.getLIR(); + } + } +}