| /* |
| * Copyright (c) 2013, 2016, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8026844 |
| * @summary Test repeating multiplyExact |
| * @library /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * |
| * @run main compiler.intrinsics.mathexact.MulExactIRepeatTest |
| */ |
| |
| package compiler.intrinsics.mathexact; |
| |
| import jdk.test.lib.Utils; |
| |
| import java.util.Random; |
| |
| public class MulExactIRepeatTest { |
| public static void main(String[] args) { |
| runTest(new Verify.MulExactI()); |
| } |
| |
| public static int nonExact(int x, int y, Verify.BinaryMethod method) { |
| int result = method.unchecked(x, y); |
| result += method.unchecked(x, y); |
| result += method.unchecked(x, y); |
| result += method.unchecked(x, y); |
| return result; |
| } |
| |
| public static void runTest(Verify.BinaryMethod method) { |
| Random rnd = Utils.getRandomInstance(); |
| for (int i = 0; i < 50000; ++i) { |
| int x = Integer.MAX_VALUE - 10; |
| int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); |
| |
| int c = rnd.nextInt() / 10; |
| int d = rnd.nextInt(9); |
| |
| int a = catchingExact(x, y, method); |
| |
| if (a != 36) { |
| throw new RuntimeException("a != 36 : " + a); |
| } |
| |
| int b = nonExact(c, d, method); |
| int n = exact(c, d, method); |
| |
| |
| if (n != b) { |
| throw new RuntimeException("n != b : " + n + " != " + b); |
| } |
| } |
| } |
| |
| public static int exact(int x, int y, Verify.BinaryMethod method) { |
| int result = 0; |
| result += method.checkMethod(x, y); |
| result += method.checkMethod(x, y); |
| result += method.checkMethod(x, y); |
| result += method.checkMethod(x, y); |
| return result; |
| } |
| |
| public static int catchingExact(int x, int y, Verify.BinaryMethod method) { |
| int result = 0; |
| try { |
| result += 5; |
| result = method.checkMethod(x, y); |
| } catch (ArithmeticException e) { |
| result += 1; |
| } |
| try { |
| result += 6; |
| |
| result += method.checkMethod(x, y); |
| } catch (ArithmeticException e) { |
| result += 2; |
| } |
| try { |
| result += 7; |
| result += method.checkMethod(x, y); |
| } catch (ArithmeticException e) { |
| result += 3; |
| } |
| try { |
| result += 8; |
| result += method.checkMethod(x, y); |
| } catch (ArithmeticException e) { |
| result += 4; |
| } |
| return result; |
| } |
| } |