Mercurial > hg > truffle
diff test/compiler/5091921/Test7005594.java @ 3345:bad7ecd0b6ed
5091921: Sign flip issues in loop optimizer
Summary: Fix integer overflow problem in the code generated by loop optimizer.
Reviewed-by: never
author | kvn |
---|---|
date | Wed, 04 May 2011 13:12:42 -0700 |
parents | |
children | 231c2b41ea4d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/5091921/Test7005594.java Wed May 04 13:12:42 2011 -0700 @@ -0,0 +1,59 @@ +/* + * 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 7005594 + * @summary Array overflow not handled correctly with loop optimzations + * + * @run main/othervm -Xms2048m -Xcomp -XX:CompileOnly=Test7005594.test Test7005594 + */ + +public class Test7005594 { + + static int test(byte a[]){ + int result=0; + for( int i=0; i<a.length; i+=((0x7fffffff>>1)+1) ){ + result += a[i]; + } + return result; + } + + public static void main(String [] args){ + byte a[]=new byte[(0x7fffffff>>1)+2]; + int result = 0; + try { + result = test(a); + } catch (ArrayIndexOutOfBoundsException e) { + e.printStackTrace(System.out); + System.out.println("Passed"); + System.exit(95); + } + System.out.println(result); + System.out.println("FAILED"); + System.exit(97); + } + +} +