Add two argument SSE shuffle instructions

runtime/vm/assembler_x64.h

Index: runtime/vm/assembler_x64.h
diff --git a/runtime/vm/assembler_x64.h b/runtime/vm/assembler_x64.h
index 4d82ceb559051e806f418f4ee8e57b46847f0786..c87aec759396263344cac8f60635bc6d3a667d0f 100644
--- a/runtime/vm/assembler_x64.h
+++ b/runtime/vm/assembler_x64.h
@@ -431,6 +431,12 @@ class Assembler : public ValueObject {
   void sqrtps(XmmRegister dst);
   void rsqrtps(XmmRegister dst);
   void reciprocalps(XmmRegister dst);
+  void movhlps(XmmRegister dst, XmmRegister src);
+  void movlhps(XmmRegister dst, XmmRegister src);
+  void unpcklps(XmmRegister dst, XmmRegister src);
+  void unpckhps(XmmRegister dst, XmmRegister src);
+  void unpcklpd(XmmRegister dst, XmmRegister src);
+  void unpckhpd(XmmRegister dst, XmmRegister src);
 
   void set1ps(XmmRegister dst, Register tmp, const Immediate& imm);
   void shufps(XmmRegister dst, XmmRegister src, const Immediate& mask);