diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index 2dde907..4d20db0 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -277,6 +277,11 @@
   void psrlq(XmmRegister reg, const Immediate& shift_count);
   void punpckldq(XmmRegister dst, XmmRegister src);
 
+  void movhpd(XmmRegister dst, const Address& src);
+  void movhpd(const Address& dst, XmmRegister src);
+
+  void psrldq(XmmRegister reg, const Immediate& shift_count);
+
   void addsd(XmmRegister dst, XmmRegister src);
   void addsd(XmmRegister dst, const Address& src);
   void subsd(XmmRegister dst, XmmRegister src);