diff -r 5301ce8e3a3d -r c54cbfb4b37f hotspot/test/compiler/8004867/TestIntUnsafeVolatile.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/8004867/TestIntUnsafeVolatile.java	Mon Feb 18 16:47:15 2013 -0800
@@ -0,0 +1,990 @@
+/*
+ * 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 8004867
+ * @summary VM crashing with assert "share/vm/opto/node.hpp:357 - assert(i < _max) failed: oob"
+ *
+ * @run main/othervm/timeout=300 -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:-OptimizeFill TestIntUnsafeVolatile
+ * @run main/othervm/timeout=300 -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:+OptimizeFill TestIntUnsafeVolatile
+ */
+
+import sun.misc.Unsafe;
+import java.lang.reflect.*;
+
+public class TestIntUnsafeVolatile {
+  private static final int ARRLEN = 97;
+  private static final int ITERS  = 11000;
+  private static final int OFFSET = 3;
+  private static final int SCALE = 2;
+  private static final int ALIGN_OFF = 8;
+  private static final int UNALIGN_OFF = 5;
+
+  private static final Unsafe unsafe;
+  private static final int BASE;
+  static {
+    try {
+      Class c = TestIntUnsafeVolatile.class.getClassLoader().loadClass("sun.misc.Unsafe");
+      Field f = c.getDeclaredField("theUnsafe");
+      f.setAccessible(true);
+      unsafe = (Unsafe)f.get(c);
+      BASE = unsafe.arrayBaseOffset(int[].class);
+    } catch (Exception e) {
+      InternalError err = new InternalError();
+      err.initCause(e);
+      throw err;
+    }
+  }
+
+  public static void main(String args[]) {
+    System.out.println("Testing Integer array unsafe volatile operations");
+    int errn = test(false);
+    if (errn > 0) {
+      System.err.println("FAILED: " + errn + " errors");
+      System.exit(97);
+    }
+    System.out.println("PASSED");
+  }
+
+  static int test(boolean test_only) {
+    int[] a1 = new int[ARRLEN];
+    int[] a2 = new int[ARRLEN];
+    // Initialize
+    for (int i=0; i<ARRLEN; i++) {
+      a1[i] = -1;
+      a2[i] = -1;
+    }
+    System.out.println("Warmup");
+    for (int i=0; i<ITERS; i++) {
+      test_ci(a1);
+      test_vi(a2, 123, -1);
+      test_cp(a1, a2);
+      test_2ci(a1, a2);
+      test_2vi(a1, a2, 123, 103);
+      test_ci_neg(a1, 123);
+      test_vi_neg(a2, 123, 103);
+      test_cp_neg(a1, a2);
+      test_2ci_neg(a1, a2);
+      test_2vi_neg(a1, a2, 123, 103);
+      test_ci_oppos(a1, 123);
+      test_vi_oppos(a2, 123, 103);
+      test_cp_oppos(a1, a2);
+      test_2ci_oppos(a1, a2);
+      test_2vi_oppos(a1, a2, 123, 103);
+      test_ci_off(a1, 123);
+      test_vi_off(a2, 123, 103);
+      test_cp_off(a1, a2);
+      test_2ci_off(a1, a2);
+      test_2vi_off(a1, a2, 123, 103);
+      test_ci_inv(a1, OFFSET, 123);
+      test_vi_inv(a2, 123, OFFSET, 103);
+      test_cp_inv(a1, a2, OFFSET);
+      test_2ci_inv(a1, a2, OFFSET);
+      test_2vi_inv(a1, a2, 123, 103, OFFSET);
+      test_ci_scl(a1, 123);
+      test_vi_scl(a2, 123, 103);
+      test_cp_scl(a1, a2);
+      test_2ci_scl(a1, a2);
+      test_2vi_scl(a1, a2, 123, 103);
+      test_cp_alndst(a1, a2);
+      test_cp_alnsrc(a1, a2);
+      test_2ci_aln(a1, a2);
+      test_2vi_aln(a1, a2, 123, 103);
+      test_cp_unalndst(a1, a2);
+      test_cp_unalnsrc(a1, a2);
+      test_2ci_unaln(a1, a2);
+      test_2vi_unaln(a1, a2, 123, 103);
+    }
+    // Initialize
+    for (int i=0; i<ARRLEN; i++) {
+      a1[i] = -1;
+      a2[i] = -1;
+    }
+    // Test and verify results
+    System.out.println("Verification");
+    int errn = 0;
+    {
+      test_ci(a1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_ci: a1", i, a1[i], -123);
+      }
+      test_vi(a2, 123, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_vi: a2", i, a2[i], 123);
+      }
+      test_cp(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_cp: a1", i, a1[i], 123);
+      }
+      test_2ci(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2ci: a1", i, a1[i], -123);
+        errn += verify("test_2ci: a2", i, a2[i], -103);
+      }
+      test_2vi(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2vi: a1", i, a1[i], 123);
+        errn += verify("test_2vi: a2", i, a2[i], 103);
+      }
+      // Reset for negative stride
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_ci_neg(a1, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_ci_neg: a1", i, a1[i], -123);
+      }
+      test_vi_neg(a2, 123, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_vi_neg: a2", i, a2[i], 123);
+      }
+      test_cp_neg(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_cp_neg: a1", i, a1[i], 123);
+      }
+      test_2ci_neg(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2ci_neg: a1", i, a1[i], -123);
+        errn += verify("test_2ci_neg: a2", i, a2[i], -103);
+      }
+      test_2vi_neg(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2vi_neg: a1", i, a1[i], 123);
+        errn += verify("test_2vi_neg: a2", i, a2[i], 103);
+      }
+      // Reset for opposite stride
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_ci_oppos(a1, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_ci_oppos: a1", i, a1[i], -123);
+      }
+      test_vi_oppos(a2, 123, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_vi_oppos: a2", i, a2[i], 123);
+      }
+      test_cp_oppos(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_cp_oppos: a1", i, a1[i], 123);
+      }
+      test_2ci_oppos(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2ci_oppos: a1", i, a1[i], -123);
+        errn += verify("test_2ci_oppos: a2", i, a2[i], -103);
+      }
+      test_2vi_oppos(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN; i++) {
+        errn += verify("test_2vi_oppos: a1", i, a1[i], 123);
+        errn += verify("test_2vi_oppos: a2", i, a2[i], 103);
+      }
+      // Reset for indexing with offset
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_ci_off(a1, -1);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_ci_off: a1", i, a1[i], -123);
+      }
+      test_vi_off(a2, 123, -1);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_vi_off: a2", i, a2[i], 123);
+      }
+      test_cp_off(a1, a2);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_cp_off: a1", i, a1[i], 123);
+      }
+      test_2ci_off(a1, a2);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_2ci_off: a1", i, a1[i], -123);
+        errn += verify("test_2ci_off: a2", i, a2[i], -103);
+      }
+      test_2vi_off(a1, a2, 123, 103);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_2vi_off: a1", i, a1[i], 123);
+        errn += verify("test_2vi_off: a2", i, a2[i], 103);
+      }
+      for (int i=0; i<OFFSET; i++) {
+        errn += verify("test_2vi_off: a1", i, a1[i], -1);
+        errn += verify("test_2vi_off: a2", i, a2[i], -1);
+      }
+      // Reset for indexing with invariant offset
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_ci_inv(a1, OFFSET, -1);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_ci_inv: a1", i, a1[i], -123);
+      }
+      test_vi_inv(a2, 123, OFFSET, -1);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_vi_inv: a2", i, a2[i], 123);
+      }
+      test_cp_inv(a1, a2, OFFSET);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_cp_inv: a1", i, a1[i], 123);
+      }
+      test_2ci_inv(a1, a2, OFFSET);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_2ci_inv: a1", i, a1[i], -123);
+        errn += verify("test_2ci_inv: a2", i, a2[i], -103);
+      }
+      test_2vi_inv(a1, a2, 123, 103, OFFSET);
+      for (int i=OFFSET; i<ARRLEN; i++) {
+        errn += verify("test_2vi_inv: a1", i, a1[i], 123);
+        errn += verify("test_2vi_inv: a2", i, a2[i], 103);
+      }
+      for (int i=0; i<OFFSET; i++) {
+        errn += verify("test_2vi_inv: a1", i, a1[i], -1);
+        errn += verify("test_2vi_inv: a2", i, a2[i], -1);
+      }
+      // Reset for indexing with scale
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_ci_scl(a1, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        int val = (i%SCALE != 0) ? -1 : -123;
+        errn += verify("test_ci_scl: a1", i, a1[i], val);
+      }
+      test_vi_scl(a2, 123, -1);
+      for (int i=0; i<ARRLEN; i++) {
+        int val = (i%SCALE != 0) ? -1 : 123;
+        errn += verify("test_vi_scl: a2", i, a2[i], val);
+      }
+      test_cp_scl(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        int val = (i%SCALE != 0) ? -1 : 123;
+        errn += verify("test_cp_scl: a1", i, a1[i], val);
+      }
+      test_2ci_scl(a1, a2);
+      for (int i=0; i<ARRLEN; i++) {
+        if (i%SCALE != 0) {
+          errn += verify("test_2ci_scl: a1", i, a1[i], -1);
+        } else if (i*SCALE < ARRLEN) {
+          errn += verify("test_2ci_scl: a1", i*SCALE, a1[i*SCALE], -123);
+        }
+        if (i%SCALE != 0) {
+          errn += verify("test_2ci_scl: a2", i, a2[i], -1);
+        } else if (i*SCALE < ARRLEN) {
+          errn += verify("test_2ci_scl: a2", i*SCALE, a2[i*SCALE], -103);
+        }
+      }
+      test_2vi_scl(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN; i++) {
+        if (i%SCALE != 0) {
+          errn += verify("test_2vi_scl: a1", i, a1[i], -1);
+        } else if (i*SCALE < ARRLEN) {
+          errn += verify("test_2vi_scl: a1", i*SCALE, a1[i*SCALE], 123);
+        }
+        if (i%SCALE != 0) {
+          errn += verify("test_2vi_scl: a2", i, a2[i], -1);
+        } else if (i*SCALE < ARRLEN) {
+          errn += verify("test_2vi_scl: a2", i*SCALE, a2[i*SCALE], 103);
+        }
+      }
+      // Reset for 2 arrays with relative aligned offset
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_vi(a2, 123, -1);
+      test_cp_alndst(a1, a2);
+      for (int i=0; i<ALIGN_OFF; i++) {
+        errn += verify("test_cp_alndst: a1", i, a1[i], -1);
+      }
+      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_cp_alndst: a1", i, a1[i], 123);
+      }
+      for (int i=0; i<ALIGN_OFF; i++) {
+        a1[i] = 123;
+      }
+      test_vi(a2, -123, 123);
+      test_cp_alnsrc(a1, a2);
+      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
+        errn += verify("test_cp_alnsrc: a1", i, a1[i], -123);
+      }
+      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_cp_alnsrc: a1", i, a1[i], 123);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_2ci_aln(a1, a2);
+      for (int i=0; i<ALIGN_OFF; i++) {
+        errn += verify("test_2ci_aln: a1", i, a1[i], -1);
+      }
+      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_aln: a1", i, a1[i], -123);
+      }
+      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
+        errn += verify("test_2ci_aln: a2", i, a2[i], -103);
+      }
+      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_aln: a2", i, a2[i], -1);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_2vi_aln(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
+        errn += verify("test_2vi_aln: a1", i, a1[i], 123);
+      }
+      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_aln: a1", i, a1[i], -1);
+      }
+      for (int i=0; i<ALIGN_OFF; i++) {
+        errn += verify("test_2vi_aln: a2", i, a2[i], -1);
+      }
+      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_aln: a2", i, a2[i], 103);
+      }
+
+      // Reset for 2 arrays with relative unaligned offset
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_vi(a2, 123, -1);
+      test_cp_unalndst(a1, a2);
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        errn += verify("test_cp_unalndst: a1", i, a1[i], -1);
+      }
+      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_cp_unalndst: a1", i, a1[i], 123);
+      }
+      test_vi(a2, -123, 123);
+      test_cp_unalnsrc(a1, a2);
+      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
+        errn += verify("test_cp_unalnsrc: a1", i, a1[i], -123);
+      }
+      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_cp_unalnsrc: a1", i, a1[i], 123);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_2ci_unaln(a1, a2);
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        errn += verify("test_2ci_unaln: a1", i, a1[i], -1);
+      }
+      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_unaln: a1", i, a1[i], -123);
+      }
+      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
+        errn += verify("test_2ci_unaln: a2", i, a2[i], -103);
+      }
+      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_unaln: a2", i, a2[i], -1);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+        a2[i] = -1;
+      }
+      test_2vi_unaln(a1, a2, 123, 103);
+      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
+        errn += verify("test_2vi_unaln: a1", i, a1[i], 123);
+      }
+      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_unaln: a1", i, a1[i], -1);
+      }
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        errn += verify("test_2vi_unaln: a2", i, a2[i], -1);
+      }
+      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_unaln: a2", i, a2[i], 103);
+      }
+
+      // Reset for aligned overlap initialization
+      for (int i=0; i<ALIGN_OFF; i++) {
+        a1[i] = i;
+      }
+      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_cp_alndst(a1, a1);
+      for (int i=0; i<ARRLEN; i++) {
+        int v = i%ALIGN_OFF;
+        errn += verify("test_cp_alndst_overlap: a1", i, a1[i], v);
+      }
+      for (int i=0; i<ALIGN_OFF; i++) {
+        a1[i+ALIGN_OFF] = -1;
+      }
+      test_cp_alnsrc(a1, a1);
+      for (int i=0; i<ALIGN_OFF; i++) {
+        errn += verify("test_cp_alnsrc_overlap: a1", i, a1[i], -1);
+      }
+      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
+        int v = i%ALIGN_OFF;
+        errn += verify("test_cp_alnsrc_overlap: a1", i, a1[i], v);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_2ci_aln(a1, a1);
+      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
+        errn += verify("test_2ci_aln_overlap: a1", i, a1[i], -103);
+      }
+      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_aln_overlap: a1", i, a1[i], -123);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_2vi_aln(a1, a1, 123, 103);
+      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
+        errn += verify("test_2vi_aln_overlap: a1", i, a1[i], 123);
+      }
+      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_aln_overlap: a1", i, a1[i], 103);
+      }
+
+      // Reset for unaligned overlap initialization
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        a1[i] = i;
+      }
+      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_cp_unalndst(a1, a1);
+      for (int i=0; i<ARRLEN; i++) {
+        int v = i%UNALIGN_OFF;
+        errn += verify("test_cp_unalndst_overlap: a1", i, a1[i], v);
+      }
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        a1[i+UNALIGN_OFF] = -1;
+      }
+      test_cp_unalnsrc(a1, a1);
+      for (int i=0; i<UNALIGN_OFF; i++) {
+        errn += verify("test_cp_unalnsrc_overlap: a1", i, a1[i], -1);
+      }
+      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
+        int v = i%UNALIGN_OFF;
+        errn += verify("test_cp_unalnsrc_overlap: a1", i, a1[i], v);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_2ci_unaln(a1, a1);
+      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
+        errn += verify("test_2ci_unaln_overlap: a1", i, a1[i], -103);
+      }
+      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2ci_unaln_overlap: a1", i, a1[i], -123);
+      }
+      for (int i=0; i<ARRLEN; i++) {
+        a1[i] = -1;
+      }
+      test_2vi_unaln(a1, a1, 123, 103);
+      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
+        errn += verify("test_2vi_unaln_overlap: a1", i, a1[i], 123);
+      }
+      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
+        errn += verify("test_2vi_unaln_overlap: a1", i, a1[i], 103);
+      }
+
+    }
+
+    if (errn > 0 || test_only)
+      return errn;
+
+    // Initialize
+    for (int i=0; i<ARRLEN; i++) {
+      a1[i] = -1;
+      a2[i] = -1;
+    }
+    System.out.println("Time");
+    long start, end;
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci(a1);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi(a2, 123, -1);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci_neg(a1, 123);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci_neg: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi_neg(a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi_neg: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_neg(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_neg: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_neg(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_neg: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_neg(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_neg: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci_oppos(a1, 123);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci_oppos: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi_oppos(a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi_oppos: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_oppos(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_oppos: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_oppos(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_oppos: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_oppos(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_oppos: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci_off(a1, 123);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci_off: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi_off(a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi_off: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_off(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_off: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_off(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_off: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_off(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_off: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci_inv(a1, OFFSET, 123);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci_inv: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi_inv(a2, 123, OFFSET, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi_inv: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_inv(a1, a2, OFFSET);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_inv: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_inv(a1, a2, OFFSET);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_inv: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_inv(a1, a2, 123, 103, OFFSET);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_inv: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_ci_scl(a1, 123);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_ci_scl: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_vi_scl(a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_vi_scl: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_scl(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_scl: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_scl(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_scl: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_scl(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_scl: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_alndst(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_alndst: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_alnsrc(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_alnsrc: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_aln(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_aln: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_aln(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_aln: " + (end - start));
+
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_unalndst(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_unalndst: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_cp_unalnsrc(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_cp_unalnsrc: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2ci_unaln(a1, a2);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2ci_unaln: " + (end - start));
+    start = System.currentTimeMillis();
+    for (int i=0; i<ITERS; i++) {
+      test_2vi_unaln(a1, a2, 123, 103);
+    }
+    end = System.currentTimeMillis();
+    System.out.println("test_2vi_unaln: " + (end - start));
+
+    return errn;
+  }
+
+  private final static long byte_offset(int i) {
+    return ((long)i << 2) + BASE;
+  }
+
+  static void test_ci(int[] a) {
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), -123);
+    }
+  }
+  static void test_vi(int[] a, int b, int old) {
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b);
+    }
+  }
+  static void test_cp(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b[i]);
+    }
+  }
+  static void test_2ci(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), -123);
+      unsafe.putIntVolatile(b, byte_offset(i), -103);
+    }
+  }
+  static void test_2vi(int[] a, int[] b, int c, int d) {
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), c);
+      unsafe.putIntVolatile(b, byte_offset(i), d);
+    }
+  }
+  static void test_ci_neg(int[] a, int old) {
+    for (int i = ARRLEN-1; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), -123);
+    }
+  }
+  static void test_vi_neg(int[] a, int b, int old) {
+    for (int i = ARRLEN-1; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b);
+    }
+  }
+  static void test_cp_neg(int[] a, int[] b) {
+    for (int i = ARRLEN-1; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b[i]);
+    }
+  }
+  static void test_2ci_neg(int[] a, int[] b) {
+    for (int i = ARRLEN-1; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), -123);
+      unsafe.putIntVolatile(b, byte_offset(i), -103);
+    }
+  }
+  static void test_2vi_neg(int[] a, int[] b, int c, int d) {
+    for (int i = ARRLEN-1; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), c);
+      unsafe.putIntVolatile(b, byte_offset(i), d);
+    }
+  }
+  static void test_ci_oppos(int[] a, int old) {
+    int limit = ARRLEN-1;
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(limit-i), -123);
+    }
+  }
+  static void test_vi_oppos(int[] a, int b, int old) {
+    int limit = ARRLEN-1;
+    for (int i = limit; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(limit-i), b);
+    }
+  }
+  static void test_cp_oppos(int[] a, int[] b) {
+    int limit = ARRLEN-1;
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b[limit-i]);
+    }
+  }
+  static void test_2ci_oppos(int[] a, int[] b) {
+    int limit = ARRLEN-1;
+    for (int i = 0; i < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(limit-i), -123);
+      unsafe.putIntVolatile(b, byte_offset(i), -103);
+    }
+  }
+  static void test_2vi_oppos(int[] a, int[] b, int c, int d) {
+    int limit = ARRLEN-1;
+    for (int i = limit; i >= 0; i-=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), c);
+      unsafe.putIntVolatile(b, byte_offset(limit-i), d);
+    }
+  }
+  static void test_ci_off(int[] a, int old) {
+    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), -123);
+    }
+  }
+  static void test_vi_off(int[] a, int b, int old) {
+    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), b);
+    }
+  }
+  static void test_cp_off(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), b[i+OFFSET]);
+    }
+  }
+  static void test_2ci_off(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), -123);
+      unsafe.putIntVolatile(b, byte_offset(i+OFFSET), -103);
+    }
+  }
+  static void test_2vi_off(int[] a, int[] b, int c, int d) {
+    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), c);
+      unsafe.putIntVolatile(b, byte_offset(i+OFFSET), d);
+    }
+  }
+  static void test_ci_inv(int[] a, int k, int old) {
+    for (int i = 0; i < ARRLEN-k; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+k), -123);
+    }
+  }
+  static void test_vi_inv(int[] a, int b, int k, int old) {
+    for (int i = 0; i < ARRLEN-k; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+k), b);
+    }
+  }
+  static void test_cp_inv(int[] a, int[] b, int k) {
+    for (int i = 0; i < ARRLEN-k; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+k), b[i+k]);
+    }
+  }
+  static void test_2ci_inv(int[] a, int[] b, int k) {
+    for (int i = 0; i < ARRLEN-k; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+k), -123);
+      unsafe.putIntVolatile(b, byte_offset(i+k), -103);
+    }
+  }
+  static void test_2vi_inv(int[] a, int[] b, int c, int d, int k) {
+    for (int i = 0; i < ARRLEN-k; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+k), c);
+      unsafe.putIntVolatile(b, byte_offset(i+k), d);
+    }
+  }
+  static void test_ci_scl(int[] a, int old) {
+    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i*SCALE), -123);
+    }
+  }
+  static void test_vi_scl(int[] a, int b, int old) {
+    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i*SCALE), b);
+    }
+  }
+  static void test_cp_scl(int[] a, int[] b) {
+    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i*SCALE), b[i*SCALE]);
+    }
+  }
+  static void test_2ci_scl(int[] a, int[] b) {
+    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i*SCALE), -123);
+      unsafe.putIntVolatile(b, byte_offset(i*SCALE), -103);
+    }
+  }
+  static void test_2vi_scl(int[] a, int[] b, int c, int d) {
+    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i*SCALE), c);
+      unsafe.putIntVolatile(b, byte_offset(i*SCALE), d);
+    }
+  }
+  static void test_cp_alndst(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+ALIGN_OFF), b[i]);
+    }
+  }
+  static void test_cp_alnsrc(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b[i+ALIGN_OFF]);
+    }
+  }
+  static void test_2ci_aln(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+ALIGN_OFF), -123);
+      unsafe.putIntVolatile(b, byte_offset(i), -103);
+    }
+  }
+  static void test_2vi_aln(int[] a, int[] b, int c, int d) {
+    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), c);
+      unsafe.putIntVolatile(b, byte_offset(i+ALIGN_OFF), d);
+    }
+  }
+  static void test_cp_unalndst(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+UNALIGN_OFF), b[i]);
+    }
+  }
+  static void test_cp_unalnsrc(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), b[i+UNALIGN_OFF]);
+    }
+  }
+  static void test_2ci_unaln(int[] a, int[] b) {
+    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i+UNALIGN_OFF), -123);
+      unsafe.putIntVolatile(b, byte_offset(i), -103);
+    }
+  }
+  static void test_2vi_unaln(int[] a, int[] b, int c, int d) {
+    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
+      unsafe.putIntVolatile(a, byte_offset(i), c);
+      unsafe.putIntVolatile(b, byte_offset(i+UNALIGN_OFF), d);
+    }
+  }
+
+  static int verify(String text, int i, int elem, int val) {
+    if (elem != val) {
+      System.err.println(text + "[" + i + "] = " + elem + " != " + val);
+      return 1;
+    }
+    return 0;
+  }
+}