--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ConditionalEliminationTest7.java 2016-12-07 13:48:17.762293349 -0800 @@ -0,0 +1,100 @@ +/* + * 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 org.graalvm.compiler.core.test; + +import org.junit.Test; + +/** + * Collection of tests for + * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those + * that triggered bugs in this phase. + */ +public class ConditionalEliminationTest7 extends ConditionalEliminationTestBase { + + @SuppressWarnings("all") + public static int test1Snippet(int a, Object b) { + int sum = 0; + for (int j = 0;; ++j) { + ++sum; + if (b instanceof String) { + if (sum == 100) { + break; + } + } + } + String s = (String) b; + return s.length() + sum; + } + + @Test + public void test1() { + // One loop exit is skipped. + testProxies("test1Snippet", 1); + } + + @SuppressWarnings("all") + public static int test2Snippet(int a, Object b) { + int sum = 0; + for (int j = 0;; ++j) { + ++sum; + if (b instanceof String) { + break; + } + } + String s = (String) b; + return s.length() + sum; + } + + @Test + public void test2() { + // The loop exit is the anchor => no proxy necessary. + testProxies("test2Snippet", 0); + } + + @SuppressWarnings("all") + public static int test3Snippet(int a, Object b) { + int sum = a; + outer: while (true) { + sum++; + while (sum++ != 20) { + while (sum++ != 30) { + while (sum++ != 40) { + while (sum++ != 50) { + if (b instanceof String) { + break outer; + } + } + } + } + } + } + String s = (String) b; + return s.length() + sum; + } + + @Test + public void test3() { + // The break skips over 4 other loops. + testProxies("test3Snippet", 4); + } +}