| /* |
| * Copyright (c) 2011, 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.test; |
| |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.debug.Debug; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; |
| import org.graalvm.compiler.phases.common.CanonicalizerPhase; |
| import org.graalvm.compiler.phases.tiers.PhaseContext; |
| |
| /** |
| * In the following tests, the scalar type system of the compiler should be complete enough to see |
| * the relation between the different conditions. |
| */ |
| public class ScalarTypeSystemTest extends GraalCompilerTest { |
| |
| public static int referenceSnippet1(int a) { |
| if (a > 0) { |
| return 1; |
| } else { |
| return 2; |
| } |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void test1() { |
| test("test1Snippet", "referenceSnippet1"); |
| } |
| |
| public static int test1Snippet(int a) { |
| if (a > 0) { |
| if (a > -1) { |
| return 1; |
| } else { |
| return 3; |
| } |
| } else { |
| return 2; |
| } |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void test2() { |
| test("test2Snippet", "referenceSnippet1"); |
| } |
| |
| public static int test2Snippet(int a) { |
| if (a > 0) { |
| if (a == -15) { |
| return 3; |
| } else { |
| return 1; |
| } |
| } else { |
| return 2; |
| } |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void test3() { |
| test("test3Snippet", "referenceSnippet2"); |
| } |
| |
| public static int referenceSnippet2(int a, int b) { |
| if (a > b) { |
| return 1; |
| } else { |
| return 2; |
| } |
| } |
| |
| public static int test3Snippet(int a, int b) { |
| if (a > b) { |
| if (a == b) { |
| return 3; |
| } else { |
| return 1; |
| } |
| } else { |
| return 2; |
| } |
| } |
| |
| public static int referenceSnippet3(int a, int b) { |
| if (a == b) { |
| return 1; |
| } else { |
| return 2; |
| } |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void test6() { |
| test("test6Snippet", "referenceSnippet3"); |
| } |
| |
| public static int test6Snippet(int a, int b) { |
| if (a == b) { |
| if (a == b + 1) { |
| return 3; |
| } else { |
| return 1; |
| } |
| } else { |
| return 2; |
| } |
| } |
| |
| private void test(final String snippet, final String referenceSnippet) { |
| // No debug scope to reduce console noise for @Test(expected = ...) tests |
| StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO); |
| Debug.dump(Debug.BASIC_LOG_LEVEL, graph, "Graph"); |
| PhaseContext context = new PhaseContext(getProviders()); |
| new CanonicalizerPhase().apply(graph, context); |
| StructuredGraph referenceGraph = parseEager(referenceSnippet, AllowAssumptions.NO); |
| assertEquals(referenceGraph, graph); |
| } |
| } |