X87: [es6] Faster implementation of OrdinaryHasInstance.

  port b6419fa2 (r34959)

  original commit message:
  Now implemented as a builtin that delegates to the InstanceOfStub. That
  stub was parameterized to fallback to either Runtime_InstanceOf or to
  Runtime_OrdinaryHasInstance depending on the --harmony-instanceof flag.
  Once the feature stabilizes and the flag is no longer needed, we can get
  rid of this parameterization again.

BUG=

Review URL: https://codereview.chromium.org/1821113002

Cr-Commit-Position: refs/heads/master@{#34975}

src/x87/builtins-x87.cc

@@ -957,6 +957,28 @@ void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
   }
 }
 
+// static
+void Builtins::Generate_FunctionHasInstance(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- eax    : argc
+  //  -- esp[0] : return address
+  //  -- esp[4] : first argument (left-hand side)
+  //  -- esp[8] : receiver (right-hand side)
+  // -----------------------------------
+
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    __ mov(InstanceOfDescriptor::LeftRegister(),
+           Operand(ebp, 2 * kPointerSize));  // Load left-hand side.
+    __ mov(InstanceOfDescriptor::RightRegister(),
+           Operand(ebp, 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) {
@@ -1145,7 +1167,6 @@ void Builtins::Generate_ReflectApply(MacroAssembler* masm) {
   }
 }
 
-
 void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- eax     : argc

src/x87/code-stubs-x87.cc

@@ -1910,7 +1910,8 @@ void InstanceOfStub::Generate(MacroAssembler* masm) {
   __ Push(object);
   __ Push(function);
   __ PushReturnAddressFrom(scratch);
-  __ TailCallRuntime(Runtime::kInstanceOf);
+  __ TailCallRuntime(is_es6_instanceof() ? Runtime::kOrdinaryHasInstance
+                                         : Runtime::kInstanceOf);
 }