Mercurial > hg > truffle
view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/PhiCreationTests.java @ 21554:b1530a6cce8c
renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 23:21:15 +0200 |
parents | a0a760b0fb5f |
children |
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/* * 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 com.oracle.graal.compiler.test; import org.junit.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.StructuredGraph.AllowAssumptions; import com.oracle.jvmci.debug.*; /** * In the following tests, the correct removal of redundant phis during graph building is tested. */ public class PhiCreationTests extends GraalCompilerTest { /** * Dummy method to avoid javac dead code elimination. */ private static void test() { } @Test public void test1() { StructuredGraph graph = parseEager("test1Snippet", AllowAssumptions.YES); Assert.assertFalse(graph.getNodes().filter(ValuePhiNode.class).iterator().hasNext()); } public static int test1Snippet(int a) { if (a > 1) { test(); } return a; } @Test public void test2() { StructuredGraph graph = parseEager("test2Snippet", AllowAssumptions.YES); Assert.assertFalse(graph.getNodes().filter(ValuePhiNode.class).iterator().hasNext()); } public static int test2Snippet(int a) { while (a > 1) { test(); } return a; } @Test public void test3() { StructuredGraph graph = parseEager("test3Snippet", AllowAssumptions.YES); Debug.dump(graph, "Graph"); Assert.assertFalse(graph.getNodes().filter(ValuePhiNode.class).iterator().hasNext()); } public static int test3Snippet(int a) { while (a > 1) { while (a > 1) { test(); } } return a; } @Test public void test4() { StructuredGraph graph = parseEager("test4Snippet", AllowAssumptions.YES); Debug.dump(graph, "Graph"); Assert.assertFalse(graph.getNodes().filter(ValuePhiNode.class).iterator().hasNext()); } public static int test4Snippet(int a) { int b = 5; while (a > 1) { while (a > 1) { while (a > 1) { try { test(); } catch (Throwable t) { } } } while (a > 1) { while (a > 1) { try { test(); } catch (Throwable t) { } } } } return a + b; } }