[es6] Faster implementation of OrdinaryHasInstance.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index fdc67d8c33df0de49827bd312f869823c70cfc58..84af8f12e581301b45c0afc2029b893bd4da0d6c 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -1476,6 +1476,27 @@ void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
   __ TailCallRuntime(Runtime::kThrowNotDateError);
 }
 
+// static
+void Builtins::Generate_FunctionHasInstance(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- a0    : argc
+  //  -- sp[0] : first argument (left-hand side)
+  //  -- sp[4] : receiver (right-hand side)
+  // -----------------------------------
+
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    __ lw(InstanceOfDescriptor::LeftRegister(),
+          MemOperand(fp, 2 * kPointerSize));  // Load left-hand side.
+    __ lw(InstanceOfDescriptor::RightRegister(),
+          MemOperand(fp, 3 * kPointerSize));  // Load right-hand side.
+    InstanceOfStub stub(masm->isolate(), true);
+    __ CallStub(&stub);
+  }
+
+  // Pop the argument and the receiver.
+  __ DropAndRet(2);
+}
 
 // static
 void Builtins::Generate_FunctionPrototypeApply(MacroAssembler* masm) {