Mercurial > hg > graal-compiler
diff test/compiler/7024475/Test7024475.java @ 2403:1927db75dd85
7024475: loop doesn't terminate when compiled
Reviewed-by: kvn
author | never |
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date | Sun, 27 Mar 2011 00:00:14 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/7024475/Test7024475.java Sun Mar 27 00:00:14 2011 -0700 @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2011, 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 7024475 + * @summary loop doesn't terminate when compiled + * + * @run main Test7024475 + */ + +public class Test7024475 { + + static int i; + static int x1; + static int[] bucket_B; + + static void test(Test7024475 test, int i, int c0, int j, int c1) { + for (;;) { + if (c1 > c0) { + if (c0 > 253) { + throw new InternalError("c0 = " + c0); + } + int index = c0 * 256 + c1; + if (index == -1) return; + i = bucket_B[index]; + if (1 < j - i && test != null) + x1 = 0; + j = i; + c1--; + } else { + c0--; + if (j <= 0) + break; + c1 = 255; + } + } + } + + public static void main(String args[]) { + Test7024475 t = new Test7024475(); + bucket_B = new int[256*256]; + for (int i = 1; i < 256*256; i++) { + bucket_B[i] = 1; + } + for (int n = 0; n < 100000; n++) { + test(t, 2, 85, 1, 134); + } + } +}