Mercurial > hg > truffle
view test/compiler/intrinsics/mathexact/SubExactIRepeatTest.java @ 15939:efc5afa0f5b3
added ${workspace}/com.oracle.graal.hotspot/src_gen/hotspot to include paths
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 27 May 2014 21:20:36 +0200 |
parents | 4ca6dc0799b6 |
children | 52b4284cb496 |
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/* * Copyright (c) 2013, 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 subtractExact * @compile SubExactIRepeatTest.java Verify.java * @run main SubExactIRepeatTest -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseMathExactIntrinsics * */ import java.lang.ArithmeticException; public class SubExactIRepeatTest { public static void main(String[] args) { runTest(new Verify.SubExactI()); } 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) { java.util.Random rnd = new java.util.Random(); for (int i = 0; i < 50000; ++i) { int x = Integer.MIN_VALUE + 10; int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); int c = rnd.nextInt() / 2; int d = rnd.nextInt() / 2; 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; } }