[es6] Faster implementation of OrdinaryHasInstance.

src/x64/builtins-x64.cc

Index: src/x64/builtins-x64.cc
diff --git a/src/x64/builtins-x64.cc b/src/x64/builtins-x64.cc
index 102c7552e71f027dcf4df2f1d129e24060e9e41c..b90216c29a1b8debaf0f1a7d7714c72f3ff601e0 100644
--- a/src/x64/builtins-x64.cc
+++ b/src/x64/builtins-x64.cc
@@ -1009,6 +1009,28 @@ void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
   }
 }
 
+// static
+void Builtins::Generate_FunctionHasInstance(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- rax     : argc
+  //  -- rsp[0]  : return address
+  //  -- rsp[8]  : first argument (left-hand side)
+  //  -- rsp[16] : receiver (right-hand side)
+  // -----------------------------------
+
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    __ movp(InstanceOfDescriptor::LeftRegister(),
+            Operand(rbp, 2 * kPointerSize));  // Load left-hand side.
+    __ movp(InstanceOfDescriptor::RightRegister(),
+            Operand(rbp, 3 * kPointerSize));  // Load right-hand side.
+    InstanceOfStub stub(masm->isolate(), true);
+    __ CallStub(&stub);
+  }
+
+  // Pop the argument and the receiver.
+  __ ret(2 * kPointerSize);
+}
 
 // static
 void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) {