diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index a085677..22eaedc 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -449,6 +449,15 @@
   void paddq(XmmRegister dst, XmmRegister src);
   void psubq(XmmRegister dst, XmmRegister src);
 
+  void paddusb(XmmRegister dst, XmmRegister src);
+  void paddsb(XmmRegister dst, XmmRegister src);
+  void paddusw(XmmRegister dst, XmmRegister src);
+  void paddsw(XmmRegister dst, XmmRegister src);
+  void psubusb(XmmRegister dst, XmmRegister src);
+  void psubsb(XmmRegister dst, XmmRegister src);
+  void psubusw(XmmRegister dst, XmmRegister src);
+  void psubsw(XmmRegister dst, XmmRegister src);
+
   void cvtsi2ss(XmmRegister dst, Register src);
   void cvtsi2sd(XmmRegister dst, Register src);