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comparison test/compiler/7017746/Test.java @ 2254:ab42c7e1cf83

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7017746: Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early() Summary: Add TEMP edges (and KILL projections) before duplicated operands are removed in Expand() methods. Reviewed-by: never
author kvn
date Thu, 10 Feb 2011 14:25:59 -0800
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2253:62a8557e8f36 2254:ab42c7e1cf83
1 /*
2 * Copyright (c) 2011, 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 7017746
27 * @summary Regression : C2 compiler crash due to SIGSEGV in PhaseCFG::schedule_early()
28 *
29 * @run main/othervm -Xbatch Test
30 */
31
32 public class Test {
33
34 int i;
35
36 static int test(Test t, int a, int b) {
37 int j = t.i;
38 int x = a - b;
39 if (a < b) x = x + j;
40 return x - j;
41 }
42
43 public static void main(String args[]) {
44 Test t = new Test();
45 for (int n = 0; n < 1000000; n++) {
46 int i = test(t, 1, 2);
47 }
48 }
49 }
50