diff -r 1957c1478794 -r 6bbaedb03534 src/cpu/x86/vm/assembler_x86.hpp
--- a/src/cpu/x86/vm/assembler_x86.hpp	Tue Feb 15 22:18:33 2011 -0800
+++ b/src/cpu/x86/vm/assembler_x86.hpp	Wed Feb 09 15:02:23 2011 -0800
@@ -1277,6 +1277,9 @@
   void prefetcht2(Address src);
   void prefetchw(Address src);
 
+  // POR - Bitwise logical OR
+  void por(XMMRegister dst, XMMRegister src);
+
   // Shuffle Packed Doublewords
   void pshufd(XMMRegister dst, XMMRegister src, int mode);
   void pshufd(XMMRegister dst, Address src,     int mode);
@@ -2294,7 +2297,7 @@
   // Compare strings.
   void string_compare(Register str1, Register str2,
                       Register cnt1, Register cnt2, Register result,
-                      XMMRegister vec1, XMMRegister vec2);
+                      XMMRegister vec1);
 
   // Compare char[] arrays.
   void char_arrays_equals(bool is_array_equ, Register ary1, Register ary2,