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/*
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.graalvm.compiler.core.test;
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import org.junit.Test;
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import org.graalvm.compiler.debug.Debug;
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import org.graalvm.compiler.nodes.StructuredGraph;
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import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
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import org.graalvm.compiler.phases.common.CanonicalizerPhase;
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import org.graalvm.compiler.phases.tiers.PhaseContext;
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/**
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* In the following tests, the scalar type system of the compiler should be complete enough to see
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* the relation between the different conditions.
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*/
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public class ScalarTypeSystemTest extends GraalCompilerTest {
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public static int referenceSnippet1(int a) {
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if (a > 0) {
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return 1;
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} else {
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return 2;
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}
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}
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@Test(expected = AssertionError.class)
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public void test1() {
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test("test1Snippet", "referenceSnippet1");
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}
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public static int test1Snippet(int a) {
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if (a > 0) {
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if (a > -1) {
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return 1;
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} else {
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return 3;
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}
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} else {
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return 2;
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}
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}
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@Test(expected = AssertionError.class)
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public void test2() {
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test("test2Snippet", "referenceSnippet1");
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}
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public static int test2Snippet(int a) {
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if (a > 0) {
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if (a == -15) {
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return 3;
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} else {
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return 1;
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}
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} else {
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return 2;
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}
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}
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@Test(expected = AssertionError.class)
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public void test3() {
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test("test3Snippet", "referenceSnippet2");
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}
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public static int referenceSnippet2(int a, int b) {
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if (a > b) {
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return 1;
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} else {
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return 2;
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}
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}
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public static int test3Snippet(int a, int b) {
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if (a > b) {
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if (a == b) {
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return 3;
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} else {
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return 1;
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}
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} else {
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return 2;
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}
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}
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public static int referenceSnippet3(int a, int b) {
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if (a == b) {
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return 1;
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} else {
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return 2;
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}
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}
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@Test(expected = AssertionError.class)
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public void test6() {
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test("test6Snippet", "referenceSnippet3");
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}
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public static int test6Snippet(int a, int b) {
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if (a == b) {
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if (a == b + 1) {
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return 3;
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} else {
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return 1;
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}
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} else {
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return 2;
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}
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}
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private void test(final String snippet, final String referenceSnippet) {
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// No debug scope to reduce console noise for @Test(expected = ...) tests
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StructuredGraph graph = parseEager(snippet, AllowAssumptions.NO);
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Debug.dump(Debug.BASIC_LOG_LEVEL, graph, "Graph");
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PhaseContext context = new PhaseContext(getProviders());
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new CanonicalizerPhase().apply(graph, context);
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StructuredGraph referenceGraph = parseEager(referenceSnippet, AllowAssumptions.NO);
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assertEquals(referenceGraph, graph);
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}
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}
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