--- a/hotspot/src/share/vm/c1/c1_LIR.hpp	Tue Jul 02 07:51:31 2013 +0200
+++ b/hotspot/src/share/vm/c1/c1_LIR.hpp	Tue Jul 02 20:42:12 2013 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, Oracle and/or its affiliates. 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
@@ -877,6 +877,7 @@
 class      LIR_OpJavaCall;
 class      LIR_OpRTCall;
 class    LIR_OpArrayCopy;
+class    LIR_OpUpdateCRC32;
 class    LIR_OpLock;
 class    LIR_OpTypeCheck;
 class    LIR_OpCompareAndSwap;
@@ -982,6 +983,9 @@
   , begin_opArrayCopy
       , lir_arraycopy
   , end_opArrayCopy
+  , begin_opUpdateCRC32
+      , lir_updatecrc32
+  , end_opUpdateCRC32
   , begin_opLock
     , lir_lock
     , lir_unlock
@@ -1137,6 +1141,7 @@
   virtual LIR_Op2* as_Op2() { return NULL; }
   virtual LIR_Op3* as_Op3() { return NULL; }
   virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; }
+  virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; }
   virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; }
   virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; }
   virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; }
@@ -1293,6 +1298,25 @@
   void print_instr(outputStream* out) const PRODUCT_RETURN;
 };
 
+// LIR_OpUpdateCRC32
+class LIR_OpUpdateCRC32: public LIR_Op {
+  friend class LIR_OpVisitState;
+
+private:
+  LIR_Opr   _crc;
+  LIR_Opr   _val;
+
+public:
+
+  LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res);
+
+  LIR_Opr crc() const                            { return _crc; }
+  LIR_Opr val() const                            { return _val; }
+
+  virtual void emit_code(LIR_Assembler* masm);
+  virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32()  { return this; }
+  void print_instr(outputStream* out) const PRODUCT_RETURN;
+};
 
 // --------------------------------------------------
 // LIR_Op0
@@ -2212,6 +2236,8 @@
 
   void arraycopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) { append(new LIR_OpArrayCopy(src, src_pos, dst, dst_pos, length, tmp, expected_type, flags, info)); }
 
+  void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)  { append(new LIR_OpUpdateCRC32(crc, val, res)); }
+
   void fpop_raw()                                { append(new LIR_Op0(lir_fpop_raw)); }
 
   void instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci);