--- a/src/cpu/x86/vm/macroAssembler_x86.hpp	Tue Jan 15 18:54:02 2013 +0100
+++ b/src/cpu/x86/vm/macroAssembler_x86.hpp	Wed Jan 16 01:34:24 2013 +0100
@@ -126,25 +126,6 @@
     }
   }
 
-#ifndef PRODUCT
-  static void pd_print_patched_instruction(address branch) {
-    const char* s;
-    unsigned char op = branch[0];
-    if (op == 0xE8) {
-      s = "call";
-    } else if (op == 0xE9 || op == 0xEB) {
-      s = "jmp";
-    } else if ((op & 0xF0) == 0x70) {
-      s = "jcc";
-    } else if (op == 0x0F) {
-      s = "jcc";
-    } else {
-      s = "????";
-    }
-    tty->print("%s (unresolved)", s);
-  }
-#endif
-
   // The following 4 methods return the offset of the appropriate move instruction
 
   // Support for fast byte/short loading with zero extension (depending on particular CPU)
@@ -1030,6 +1011,10 @@
       Assembler::vxorpd(dst, nds, src, vector256);
   }
 
+  // Simple version for AVX2 256bit vectors
+  void vpxor(XMMRegister dst, XMMRegister src) { Assembler::vpxor(dst, dst, src, true); }
+  void vpxor(XMMRegister dst, Address src) { Assembler::vpxor(dst, dst, src, true); }
+
   // Move packed integer values from low 128 bit to hign 128 bit in 256 bit vector.
   void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src) {
     if (UseAVX > 1) // vinserti128h is available only in AVX2
@@ -1115,6 +1100,9 @@
   // C2 compiled method's prolog code.
   void verified_entry(int framesize, bool stack_bang, bool fp_mode_24b);
 
+  // clear memory of size 'cnt' qwords, starting at 'base'.
+  void clear_mem(Register base, Register cnt, Register rtmp);
+
   // IndexOf strings.
   // Small strings are loaded through stack if they cross page boundary.
   void string_indexof(Register str1, Register str2,