diff test/compiler/5091921/Test6186134.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
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/5091921/Test6186134.java	Wed May 04 13:12:42 2011 -0700
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+/*
+ * 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 6186134
+ * @summary Server virtual machine produces/exeutes incorrect code.
+ *
+ * @run main Test6186134 100000
+ */
+import java.util.ArrayList;
+
+public class Test6186134 {
+
+  int num = 0;
+
+  public Test6186134(int n) {
+    num = n;
+  }
+
+  public boolean more() {
+    return num-- > 0;
+  }
+
+  public ArrayList test1() {
+    ArrayList res = new ArrayList();
+    int maxResults = Integer.MAX_VALUE;
+    int n = 0;
+    boolean more = more();
+    while ((n++ < maxResults) && more) {
+      res.add(new Object());
+      more = more();
+    }
+    return res;
+  }
+
+  public static void main(String[] pars) {
+    int n = Integer.parseInt(pars[0]);
+    for (int i=0; i<n; i++) {
+      Test6186134 t = new Test6186134(10);
+      int size = t.test1().size();
+      if (size != 10) {
+        System.out.println("wrong size: " + size +", should be 10");
+        System.exit(97);
+      }
+    }
+    System.out.println("Passed");
+  }
+}
+