hotspot/test/compiler/c2/8007294/Test8007294.java
changeset 27699 9913b19c0948
parent 15813 6efd4c793e47
child 35578 33d25acfb1fd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/c2/8007294/Test8007294.java	Tue Nov 18 19:44:45 2014 +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");
+        }
+    }
+}