Mercurial > hg > graal-compiler
diff test/compiler/8007294/Test8007294.java @ 8116:6931f425c517
8007294: ReduceFieldZeroing doesn't check for dependent load and can lead to incorrect execution
Summary: InitializeNode::can_capture_store() must check that the captured store doesn't overwrite a memory location that is loaded before the store.
Reviewed-by: kvn
author | roland |
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date | Mon, 25 Feb 2013 14:13:04 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/8007294/Test8007294.java Mon Feb 25 14:13:04 2013 +0100 @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2013, 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 8007294 + * @summary ReduceFieldZeroing doesn't check for dependent load and can lead to incorrect execution + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8007294 + * + */ + +public class Test8007294 { + + int i1; + int i2; + + Test8007294(int i1, int i2) { + this.i1 = i1; + this.i2 = i2; + } + + static int m(int v) { + return v; + } + + static Test8007294 test1() { + Test8007294 obj = new Test8007294(10, 100); + int v1 = obj.i1; + + int v3 = m(v1); + int v2 = obj.i2; + obj.i2 = v3; + obj.i1 = v2; + + return obj; + } + + static int test2(int i) { + int j = 0; + if (i > 0) { + j = 1; + } + + int[] arr = new int[10]; + arr[0] = 1; + arr[1] = 2; + int v1 = arr[j]; + arr[0] = 3; + arr[1] = 4; + + return v1; + } + + static public void main(String[] args) { + boolean failed = false; + for (int i = 0; i < 20000; i++) { + Test8007294 obj = test1(); + if (obj.i1 != 100 || obj.i2 != 10) { + System.out.println("FAILED test1 obj.i1 = " + obj.i1 +", obj.i2 = " + obj.i2); + failed = true; + break; + } + } + for (int i = 0; i < 20000; i++) { + int res = test2(1); + if (res != 2) { + System.out.println("FAILED test2 = " + res); + failed = true; + break; + } + } + if (failed) { + System.exit(97); + } else { + System.out.println("PASSED"); + } + } +}