diff -r 6113864ecd70 -r 4e71ed4c2709 hotspot/src/cpu/x86/vm/assembler_x86.hpp
--- a/hotspot/src/cpu/x86/vm/assembler_x86.hpp	Tue Mar 31 10:02:01 2009 -0700
+++ b/hotspot/src/cpu/x86/vm/assembler_x86.hpp	Tue Mar 31 14:07:08 2009 -0700
@@ -1226,6 +1226,10 @@
   void orq(Register dst, Address src);
   void orq(Register dst, Register src);
 
+  // SSE4.2 string instructions
+  void pcmpestri(XMMRegister xmm1, XMMRegister xmm2, int imm8);
+  void pcmpestri(XMMRegister xmm1, Address src, int imm8);
+
   void popl(Address dst);
 
 #ifdef _LP64
@@ -1260,6 +1264,10 @@
   // Shift Right Logical Quadword Immediate
   void psrlq(XMMRegister dst, int shift);
 
+  // Logical Compare Double Quadword
+  void ptest(XMMRegister dst, XMMRegister src);
+  void ptest(XMMRegister dst, Address src);
+
   // Interleave Low Bytes
   void punpcklbw(XMMRegister dst, XMMRegister src);