Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ConditionalEliminationTest1.java @ 19716:2fd45bb25118
Initial version of new dominator-based conditional elimination phase.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 08 Mar 2015 21:58:34 +0100 |
parents | |
children | 15bb034480d7 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ConditionalEliminationTest1.java Sun Mar 08 21:58:34 2015 +0100 @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2015, 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 com.oracle.graal.compiler.test; + +import org.junit.*; + +import com.oracle.graal.api.directives.*; + +/** + * Collection of tests for + * {@link com.oracle.graal.phases.common.DominatorConditionalEliminationPhase} including those that + * triggered bugs in this phase. + */ +public class ConditionalEliminationTest1 extends ConditionalEliminationTestBase { + + private static final String REFERENCE_SNIPPET = "referenceSnippet"; + + @SuppressWarnings("all") + public static int referenceSnippet(int a) { + if (a == 0) { + return 1; + } + return 0; + } + + @Test + public void test1() { + test("test1Snippet", REFERENCE_SNIPPET); + } + + @SuppressWarnings("all") + public static int test1Snippet(int a) { + if (a == 0) { + if (a == 5) { + return 100; + } + if (a > 100) { + if (a == 0) { + return 200; + } + } + if (a != 2) { + return 1; + } + } + return 0; + } + + @Test + public void test2() { + test("test2Snippet", REFERENCE_SNIPPET); + } + + @SuppressWarnings("all") + public static int test2Snippet(int a) { + if (a == 0) { + if (a > 100) { + if (a == 0) { + return 200; + } + } + if (a != 2) { + return 1; + } + } + return 0; + } + + @Test + public void test3() { + test("test3Snippet", REFERENCE_SNIPPET); + } + + @SuppressWarnings("all") + public static int test3Snippet(int a) { + if (a == 0) { + if (a < 1) { + if (a < 2) { + if (a < 3) { + if (a > -1) { + if (a > -2) { + if (a > -3) { + if (a == 1) { + return 42; + } else { + return 1; + } + } + } + } + } + } + } + } + return 0; + } + + @SuppressWarnings("all") + public static int test4Snippet(int a, int b) { + if (b < 1) { + GraalDirectives.controlFlowAnchor(); + if (b < 0) { + return 1; + } + } + return 0; + } + + @Test + public void test4() { + test("test4Snippet", "test4Snippet"); + } +}