| /* |
| * Copyright (c) 2012, 2018, 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 vm.compiler.optimizations.partialpeel; |
| |
| import nsk.share.GoldChecker; |
| import vm.compiler.share.CompilerTest; |
| import vm.compiler.share.CompilerTestLauncher; |
| import vm.compiler.share.Random; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| public class WhileWhile { |
| |
| |
| public static void main(String[] args) { |
| GoldChecker goldChecker = new GoldChecker("WhileWhile"); |
| |
| for (CompilerTest test : whilewhileTests) { |
| goldChecker.println(test + " = " + CompilerTestLauncher.launch(test)); |
| } |
| |
| goldChecker.check(); |
| } |
| |
| private final static int N = 1000; |
| static int x0 = 232; |
| static int x1 = 562; |
| static int x2 = 526; |
| static int x3 = 774; |
| |
| public static final List<CompilerTest<Integer>> whilewhileTests = Arrays.asList( |
| |
| //invariant condition |
| new CompilerTest<Integer>("whilewhile1") { |
| @Override |
| public Integer execute(Random random) { |
| int k = x0 + random.nextInt(1000); |
| int i = k + x2; |
| int s = x1; |
| int j = x2; |
| |
| while (i < N + x3) { |
| i++; |
| while (j < N) { |
| j++; |
| s++; |
| if (x2 > x1) { |
| k += j; |
| } |
| |
| } |
| } |
| |
| return s + k; |
| } |
| }, |
| |
| |
| //inner while with condition on outer while counter |
| new CompilerTest<Integer>("whilewhile2") { |
| @Override |
| public Integer execute(Random random) { |
| int k = x0 + random.nextInt(1000); |
| int i = k + x2; |
| int s = x1; |
| int j = x2; |
| |
| while (i < N + x3) { |
| i++; |
| while (j < N + i) { |
| j++; |
| s++; |
| if (x2 > x1) { |
| k += j; |
| } |
| |
| } |
| } |
| return s + k; |
| } |
| }, |
| |
| //inner while in if branch |
| new CompilerTest<Integer>("whilewhile3") { |
| @Override |
| public Integer execute(Random random) { |
| int k = x0 + random.nextInt(1000); |
| int i = k + x2; |
| int s = x1; |
| int j = x2; |
| |
| while (i < N + x3) { |
| i++; |
| if (i > x2) { |
| while (j < N + i) { |
| j++; |
| s += k; |
| if (x2 > x1) { |
| k += j; |
| } |
| } |
| } |
| } |
| return s + k; |
| } |
| }, |
| |
| //two inner while |
| new CompilerTest<Integer>("whilewhile4") { |
| @Override |
| public Integer execute(Random random) { |
| int k = x0 + random.nextInt(1000); |
| int i = k + x2; |
| int s = x1; |
| int j = x2; |
| |
| while (i < N + x3) { |
| i++; |
| s++; |
| if (i > x2) { |
| while (j < N + i) { |
| j++; |
| s++; |
| if (x2 > x1) { |
| k += j; |
| } |
| } |
| } |
| |
| j = x2; |
| while (j < x2 + x3) { |
| j++; |
| if (x2 > x1) { |
| j += x0; |
| s++; |
| k += j; |
| } |
| } |
| } |
| return s + k; |
| } |
| } |
| ); |
| |
| } |