test/tools/javac/BadOptimization/DeadCode5.java

Sat, 07 Nov 2020 10:30:02 +0800

author
aoqi
date
Sat, 07 Nov 2020 10:30:02 +0800
changeset 3938
93012e2a5d1d
parent 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag mips-jdk8u275-b01 for changeset eb6ee6a5f2fe

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 */
aoqi@0 23
aoqi@0 24 /*
aoqi@0 25 * @test
aoqi@0 26 * @bug 4136312 4073244
aoqi@0 27 * @summary init: Verify that overzealous dead-code elimination no
aoqi@0 28 * longer removes live code.
aoqi@0 29 * @author dps
aoqi@0 30 *
aoqi@0 31 * @run clean DeadCode5
aoqi@0 32 * @run compile -O DeadCode5.java
aoqi@0 33 * @run main DeadCode5
aoqi@0 34 */
aoqi@0 35
aoqi@0 36
aoqi@0 37 // Test for bug 4136312
aoqi@0 38
aoqi@0 39 public class DeadCode5
aoqi@0 40 {
aoqi@0 41 int fld;
aoqi@0 42
aoqi@0 43 static public void main(String args[]) {
aoqi@0 44 DeadCode5 t = null;
aoqi@0 45 try {
aoqi@0 46 int dummy = t.fld;
aoqi@0 47 // if we got here, then there must be a problem
aoqi@0 48 throw new RuntimeException("accidental removal of live code");
aoqi@0 49 } catch (NullPointerException e) {
aoqi@0 50 System.out.println("NullPointerException correctly thrown");
aoqi@0 51 e.printStackTrace();
aoqi@0 52 }
aoqi@0 53 }
aoqi@0 54 }

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