| /* |
| * Copyright (c) 2012, 2012, 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 java.lang.reflect.Array; |
| |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.phases.common.AbstractInliningPhase; |
| |
| /** |
| * Tests any optimization that commons loads of non-inlineable constants. |
| */ |
| public class CommonedConstantsTest extends GraalCompilerTest { |
| |
| public static final String[] array = {"1", "2", null}; |
| |
| // A method where a constant is used on the normal and exception edge of a non-inlined call. |
| // The dominating block of both usages is the block containing the call. |
| public static Object test0Snippet(String[] arr, int i) { |
| Object result = null; |
| try { |
| result = Array.get(arr, i); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| result = array[0]; |
| } |
| if (result == null) { |
| result = array[2]; |
| } |
| return result; |
| } |
| |
| @Test |
| public void test0() { |
| // Ensure the exception path is profiled |
| ResolvedJavaMethod javaMethod = getResolvedJavaMethod("test0Snippet"); |
| javaMethod.reprofile(); |
| test0Snippet(array, array.length); |
| |
| test("test0Snippet", array, 0); |
| test("test0Snippet", array, 2); |
| test("test0Snippet", array, 3); |
| test("test0Snippet", array, 1); |
| } |
| |
| public static final char[] alphabet = "abcdefghijklmnopqrstuvwxyz".toCharArray(); |
| |
| static int noninlineLength(char[] s) { |
| return s.length; |
| } |
| |
| /** |
| * A constant with usages before and after a non-inlined call. |
| */ |
| public static int test1Snippet(String s) { |
| if (s == null) { |
| return noninlineLength(alphabet) + 1; |
| } |
| char[] sChars = s.toCharArray(); |
| int count = 0; |
| for (int i = 0; i < alphabet.length && i < sChars.length; i++) { |
| if (alphabet[i] == sChars[i]) { |
| count++; |
| } |
| } |
| return count; |
| } |
| |
| @Test |
| public void test1() { |
| getSuites().getHighTier().findPhase(AbstractInliningPhase.class).remove(); |
| test1Snippet(new String(alphabet)); |
| |
| test("test1Snippet", (Object) null); |
| test("test1Snippet", "test1Snippet"); |
| test("test1Snippet", ""); |
| } |
| |
| /** |
| * A constant with only usage in a loop. |
| */ |
| public static int test2Snippet(String s) { |
| char[] sChars = s.toCharArray(); |
| int count = 0; |
| for (int i = 0; i < alphabet.length && i < sChars.length; i++) { |
| if (alphabet[i] == sChars[i]) { |
| count++; |
| } |
| } |
| return count; |
| } |
| |
| @Test |
| public void test2() { |
| assert getSuites().getHighTier().findPhase(AbstractInliningPhase.class).hasNext(); |
| test2Snippet(new String(alphabet)); |
| |
| test("test2Snippet", (Object) null); |
| test("test2Snippet", "test1Snippet"); |
| test("test2Snippet", ""); |
| } |
| } |