*** old/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Thu Dec 27 17:06:11 2012
--- new/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Thu Dec 27 17:06:11 2012

*** 794,813 ****
--- 794,819 ----
      // Copy 64-byte chunks
      __ jmpb(L_copy_64_bytes);
      __ align(OptoLoopAlignment);
    __ BIND(L_copy_64_bytes_loop);
  
!     if (UseUnalignedLoadStores) {
+       if (UseAVX >= 2) {
+         __ vmovdqu(xmm0,Address(from,  0));
+         __ vmovdqu(Address(from, to_from, Address::times_1,  0), xmm0);
+         __ vmovdqu(xmm1,Address(from, 32));
+         __ vmovdqu(Address(from, to_from, Address::times_1, 32), xmm1);
+       } else {
          __ movdqu(xmm0, Address(from, 0));
          __ movdqu(Address(from, to_from, Address::times_1, 0), xmm0);
          __ movdqu(xmm1, Address(from, 16));
          __ movdqu(Address(from, to_from, Address::times_1, 16), xmm1);
          __ movdqu(xmm2, Address(from, 32));
          __ movdqu(Address(from, to_from, Address::times_1, 32), xmm2);
          __ movdqu(xmm3, Address(from, 48));
          __ movdqu(Address(from, to_from, Address::times_1, 48), xmm3);
  
+       }
      } else {
        __ movq(xmm0, Address(from, 0));
        __ movq(Address(from, to_from, Address::times_1, 0), xmm0);
        __ movq(xmm1, Address(from, 8));
        __ movq(Address(from, to_from, Address::times_1, 8), xmm1);