1 /* 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8026844 27 * @summary Test repeating multiplyExact 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * 32 * @run main compiler.intrinsics.mathexact.MulExactIRepeatTest 33 */ 34 35 package compiler.intrinsics.mathexact; 36 37 import jdk.test.lib.Utils; 38 39 import java.util.Random; 40 41 public class MulExactIRepeatTest { 42 public static void main(String[] args) { 43 runTest(new Verify.MulExactI()); 44 } 45 46 public static int nonExact(int x, int y, Verify.BinaryMethod method) { 47 int result = method.unchecked(x, y); 48 result += method.unchecked(x, y); 49 result += method.unchecked(x, y); 50 result += method.unchecked(x, y); 51 return result; 52 } 53 54 public static void runTest(Verify.BinaryMethod method) { 55 Random rnd = Utils.getRandomInstance(); 56 for (int i = 0; i < 50000; ++i) { 57 int x = Integer.MAX_VALUE - 10; 58 int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); 59 60 int c = rnd.nextInt() / 10; 61 int d = rnd.nextInt(9); 62 63 int a = catchingExact(x, y, method); 64 65 if (a != 36) { 66 throw new RuntimeException("a != 36 : " + a); 67 } 68 69 int b = nonExact(c, d, method); 70 int n = exact(c, d, method); 71 72 73 if (n != b) { 74 throw new RuntimeException("n != b : " + n + " != " + b); 75 } 76 } 77 } 78 79 public static int exact(int x, int y, Verify.BinaryMethod method) { 80 int result = 0; 81 result += method.checkMethod(x, y); 82 result += method.checkMethod(x, y); 83 result += method.checkMethod(x, y); 84 result += method.checkMethod(x, y); 85 return result; 86 } 87 88 public static int catchingExact(int x, int y, Verify.BinaryMethod method) { 89 int result = 0; 90 try { 91 result += 5; 92 result = method.checkMethod(x, y); 93 } catch (ArithmeticException e) { 94 result += 1; 95 } 96 try { 97 result += 6; 98 99 result += method.checkMethod(x, y); 100 } catch (ArithmeticException e) { 101 result += 2; 102 } 103 try { 104 result += 7; 105 result += method.checkMethod(x, y); 106 } catch (ArithmeticException e) { 107 result += 3; 108 } 109 try { 110 result += 8; 111 result += method.checkMethod(x, y); 112 } catch (ArithmeticException e) { 113 result += 4; 114 } 115 return result; 116 } 117 }