diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/os_cpu/windows_x86/vm/copy_windows_x86.inline.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os_cpu/windows_x86/vm/copy_windows_x86.inline.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2003-2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
+  (void)memmove(to, from, count * HeapWordSize);
+}
+
+static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
+#ifdef AMD64
+  switch (count) {
+  case 8:  to[7] = from[7];
+  case 7:  to[6] = from[6];
+  case 6:  to[5] = from[5];
+  case 5:  to[4] = from[4];
+  case 4:  to[3] = from[3];
+  case 3:  to[2] = from[2];
+  case 2:  to[1] = from[1];
+  case 1:  to[0] = from[0];
+  case 0:  break;
+  default:
+    (void)memcpy(to, from, count * HeapWordSize);
+    break;
+  }
+#else
+  (void)memcpy(to, from, count * HeapWordSize);
+#endif // AMD64
+}
+
+static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) {
+  switch (count) {
+  case 8:  to[7] = from[7];
+  case 7:  to[6] = from[6];
+  case 6:  to[5] = from[5];
+  case 5:  to[4] = from[4];
+  case 4:  to[3] = from[3];
+  case 3:  to[2] = from[2];
+  case 2:  to[1] = from[1];
+  case 1:  to[0] = from[0];
+  case 0:  break;
+  default: while (count-- > 0) {
+             *to++ = *from++;
+           }
+           break;
+  }
+}
+
+static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
+  (void)memmove(to, from, count * HeapWordSize);
+}
+
+static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
+  pd_disjoint_words(from, to, count);
+}
+
+static void pd_conjoint_bytes(void* from, void* to, size_t count) {
+  (void)memmove(to, from, count);
+}
+
+static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) {
+  pd_conjoint_bytes(from, to, count);
+}
+
+static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) {
+  // FIXME
+  (void)memmove(to, from, count << LogBytesPerShort);
+}
+
+static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) {
+  // FIXME
+  (void)memmove(to, from, count << LogBytesPerInt);
+}
+
+static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) {
+#ifdef AMD64
+  assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size");
+  pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);
+#else
+  // Guarantee use of fild/fistp or xmm regs via some asm code, because compilers won't.
+  __asm {
+    mov    eax, from;
+    mov    edx, to;
+    mov    ecx, count;
+    cmp    eax, edx;
+    jbe    downtest;
+    jmp    uptest;
+  up:
+    fild   qword ptr [eax];
+    fistp  qword ptr [edx];
+    add    eax, 8;
+    add    edx, 8;
+  uptest:
+    sub    ecx, 1;
+    jge    up;
+    jmp    done;
+  down:
+    fild   qword ptr [eax][ecx*8];
+    fistp  qword ptr [edx][ecx*8];
+  downtest:
+    sub    ecx, 1;
+    jge    down;
+  done:;
+  }
+#endif // AMD64
+}
+
+static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) {
+  // Do better than this: inline memmove body  NEEDS CLEANUP
+  if (from > to) {
+    while (count-- > 0) {
+      // Copy forwards
+      *to++ = *from++;
+    }
+  } else {
+    from += count - 1;
+    to   += count - 1;
+    while (count-- > 0) {
+      // Copy backwards
+      *to-- = *from--;
+    }
+  }
+}
+
+static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) {
+#ifdef AMD64
+  pd_conjoint_bytes_atomic(from, to, count);
+#else
+  pd_conjoint_bytes(from, to, count);
+#endif // AMD64
+}
+
+static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) {
+  pd_conjoint_jshorts_atomic((jshort*)from, (jshort*)to, count);
+}
+
+static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) {
+  pd_conjoint_jints_atomic((jint*)from, (jint*)to, count);
+}
+
+static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) {
+  pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count);
+}
+
+static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) {
+  pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);
+}