hotspot/test/compiler/7024475/Test7024475.java
changeset 8870 119881dc9d0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/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);
+        }
+    }
+}