/* * Copyright (c) 2008, 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. */ /* * @test * * @summary converted from VM Testbase jit/exception. * VM Testbase keywords: [jit, quick] * * @library /vmTestbase * /test/lib * @run driver jdk.test.lib.FileInstaller . . * @build jit.exception.exception * @run driver ExecDriver --java jit.exception.exception */ package jit.exception; /* This JIT buster test checks to see if a JIT doing register allocation on a machine with a callees saves ABI for non-volatile registers can get the exception handling correct. Intel and PowerPC are both such machines. The problem is restoring the correct values of i and j in the catch block. If i and j are never put into registers, then the JIT won't have a problem with correctness because the catch block will load the correct values from memory. If the JIT puts i and j into registers, then restoring their correct values at the catch block gets a little bit tougher. */ import nsk.share.TestFailure; class exception { public static void main(String[] args) { int i, j; for (i=0,j=0; i<1000000; i++) { j=j+1; j=j+1; } try { int k; k = div(0); } catch (Exception e) { if ((i != 1000000) || (j != 2000000)) { System.out.println("i=" + i + "(expected 1000000), j = " + j + "(expected 2000000)"); throw new TestFailure("Test FAILS"); } else { System.out.println("Test PASSES"); } } } static int div(int n) { int m=15; m = m/n; return m; } }