--- a/hotspot/src/share/vm/opto/superword.cpp	Tue Apr 24 12:15:32 2012 -0700
+++ b/hotspot/src/share/vm/opto/superword.cpp	Mon May 07 12:37:46 2012 -0700
@@ -1221,12 +1221,11 @@
       return opd; // input is matching vector
     }
     assert(!opd->is_VectorStore(), "such vector is not expected here");
-    // Convert scalar input to vector. Use p0's type because it's container
-    // maybe smaller than the operand's container.
-    const Type* opd_t = velt_type(!in_bb(opd) ? p0 : opd);
-    const Type* p0_t  = velt_type(p0);
-    if (p0_t->higher_equal(opd_t)) opd_t = p0_t;
-    VectorNode* vn    = VectorNode::scalar2vector(_phase->C, opd, vlen, opd_t);
+    // Convert scalar input to vector with the same number of elements as
+    // p0's vector. Use p0's type because size of operand's container in
+    // vector should match p0's size regardless operand's size.
+    const Type* p0_t = velt_type(p0);
+    VectorNode* vn = VectorNode::scalar2vector(_phase->C, opd, vlen, p0_t);
 
     _phase->_igvn.register_new_node_with_optimizer(vn);
     _phase->set_ctrl(vn, _phase->get_ctrl(opd));
@@ -1234,14 +1233,15 @@
   }
 
   // Insert pack operation
-  const Type* opd_t = velt_type(!in_bb(opd) ? p0 : opd);
-  PackNode* pk = PackNode::make(_phase->C, opd, opd_t);
+  const Type* p0_t = velt_type(p0);
+  PackNode* pk = PackNode::make(_phase->C, opd, p0_t);
+  DEBUG_ONLY( const BasicType opd_bt = opd->bottom_type()->basic_type(); )
 
   for (uint i = 1; i < vlen; i++) {
     Node* pi = p->at(i);
     Node* in = pi->in(opd_idx);
     assert(my_pack(in) == NULL, "Should already have been unpacked");
-    assert(opd_t == velt_type(!in_bb(in) ? pi : in), "all same type");
+    assert(opd_bt == in->bottom_type()->basic_type(), "all same type");
     pk->add_opd(in);
   }
   _phase->_igvn.register_new_node_with_optimizer(pk);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/7160610/Test7160610.java	Mon May 07 12:37:46 2012 -0700
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2012, 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 7160610
+ * @summary Unknown Native Code compilation issue.
+ *
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-OptimizeFill Test7160610
+ */
+
+public class Test7160610 {
+  private static final byte[] BYTE_ARRAY = new byte[7];
+  private static int[] anIntArray1190 = new int[32768];
+  private static int[] anIntArray1191 = new int[32768];
+
+  public static void main(String arg[]) {
+    int i = 256;
+    for(int j = BYTE_ARRAY[2]; j < anIntArray1190.length; j++) {
+      anIntArray1190[j] = BYTE_ARRAY[2];
+    }
+
+    for(int k = BYTE_ARRAY[2]; (k ^ BYTE_ARRAY[1]) > -5001; k++) {
+      int i1 = (int)(Math.random() * 128D * (double)i);
+      anIntArray1190[i1] = (int)(Math.random() * 256D);
+    }
+
+    for(int l = BYTE_ARRAY[2]; (l ^ BYTE_ARRAY[1]) > -21; l++) {
+      for(int j1 = BYTE_ARRAY[0]; j1 < i + -BYTE_ARRAY[0]; j1++) {
+        for(int k1 = BYTE_ARRAY[0]; (k1 ^ BYTE_ARRAY[1]) > -128; k1++) {
+          int l1 = k1 - -(j1 << 0x26cb6487);
+          anIntArray1191[l1] = (anIntArray1190[l1 + -BYTE_ARRAY[0]] - -anIntArray1190[l1 - -BYTE_ARRAY[0]] - -anIntArray1190[-128 + l1] - -anIntArray1190[128 + l1]) / BYTE_ARRAY[6];
+        }
+      }
+      int ai[] = anIntArray1190;
+      anIntArray1190 = anIntArray1191;
+      anIntArray1191 = ai;
+    }
+  }
+
+  static {
+    BYTE_ARRAY[6] = 4;
+    BYTE_ARRAY[5] = 5;
+    BYTE_ARRAY[4] = 3;
+    BYTE_ARRAY[3] = 2;
+    BYTE_ARRAY[2] = 0;
+    BYTE_ARRAY[1] = -1;
+    BYTE_ARRAY[0] = 1;
+  }
+}