--- old/src/cpu/x86/vm/assembler_x86.inline.hpp	2015-09-15 16:47:06.303623100 -0700
+++ new/src/cpu/x86/vm/assembler_x86.inline.hpp	2015-09-15 16:47:06.042623100 -0700
@@ -37,6 +37,8 @@
 inline int Assembler::prefixq_and_encode(int dst_enc, int src_enc) { return dst_enc << 3 | src_enc; }
 
 inline void Assembler::prefix(Register reg) {}
+inline void Assembler::prefix(Register dst, Register src, Prefix p) {}
+inline void Assembler::prefix(Register dst, Address adr, Prefix p) {}
 inline void Assembler::prefix(Address adr) {}
 inline void Assembler::prefixq(Address adr) {}