Implement inline %_IsJSProxy() for full codegen and Hydrogen

src/hydrogen.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 11441 matching lines @@
 
 void HOptimizedGraphBuilder::GenerateIsObject(CallRuntime* call) {
   DCHECK(call->arguments()->length() == 1);
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
   HValue* value = Pop();
   HIsObjectAndBranch* result = New<HIsObjectAndBranch>(value);
   return ast_context()->ReturnControl(result, call->id());
 }
 
 
+void HOptimizedGraphBuilder::GenerateIsJSProxy(CallRuntime* call) {
+  DCHECK(call->arguments()->length() == 1);
+  CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
+  HValue* value = Pop();
+  HIfContinuation continuation;
+  IfBuilder if_proxy(this);
+
+  HValue* smicheck = if_proxy.IfNot<HIsSmiAndBranch>(value);
+  if_proxy.And();
+  HValue* map = Add<HLoadNamedField>(value, smicheck, HObjectAccess::ForMap());
+  HValue* instance_type = Add<HLoadNamedField>(
+      map, static_cast<HValue*>(NULL), HObjectAccess::ForMapInstanceType());
+  if_proxy.If<HCompareNumericAndBranch>(
+      instance_type, Add<HConstant>(FIRST_JS_PROXY_TYPE), Token::GTE);
+  if_proxy.And();
+  if_proxy.If<HCompareNumericAndBranch>(
+      instance_type, Add<HConstant>(LAST_JS_PROXY_TYPE), Token::LTE);
+
+  if_proxy.CaptureContinuation(&continuation);
+  return ast_context()->ReturnContinuation(&continuation, call->id());
+}
+
+
 void HOptimizedGraphBuilder::GenerateIsNonNegativeSmi(CallRuntime* call) {
   return Bailout(kInlinedRuntimeFunctionIsNonNegativeSmi);
 }
 
 
 void HOptimizedGraphBuilder::GenerateIsUndetectableObject(CallRuntime* call) {
   DCHECK(call->arguments()->length() == 1);
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
   HValue* value = Pop();
   HIsUndetectableAndBranch* result = New<HIsUndetectableAndBranch>(value);
@@ skipping 1067 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal