--- old/src/share/vm/opto/arraycopynode.cpp	2015-09-02 10:17:18.532364025 +0200
+++ new/src/share/vm/opto/arraycopynode.cpp	2015-09-02 10:17:18.257412476 +0200
@@ -681,10 +681,10 @@
     uint header = arrayOopDesc::base_offset_in_bytes(ary_elem);
     uint elemsize = type2aelembytes(ary_elem);
 
-    intptr_t dest_pos_plus_len_lo = (((intptr_t)dest_pos_t->_lo) + len_t->_lo) * elemsize + header;
-    intptr_t dest_pos_plus_len_hi = (((intptr_t)dest_pos_t->_hi) + len_t->_hi) * elemsize + header;
-    intptr_t dest_pos_lo = ((intptr_t)dest_pos_t->_lo) * elemsize + header;
-    intptr_t dest_pos_hi = ((intptr_t)dest_pos_t->_hi) * elemsize + header;
+    jlong dest_pos_plus_len_lo = (((jlong)dest_pos_t->_lo) + len_t->_lo) * elemsize + header;
+    jlong dest_pos_plus_len_hi = (((jlong)dest_pos_t->_hi) + len_t->_hi) * elemsize + header;
+    jlong dest_pos_lo = ((jlong)dest_pos_t->_lo) * elemsize + header;
+    jlong dest_pos_hi = ((jlong)dest_pos_t->_hi) * elemsize + header;
 
     if (must_modify) {
       if (offset_lo >= dest_pos_hi && offset_hi < dest_pos_plus_len_lo) {