Support %_IsObject in Crankshaft.

src/hydrogen.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4930 matching lines @@
 
 
 void HGraphBuilder::GenerateIsRegExp(int argument_count, int ast_id) {
   ASSERT(argument_count == 1);
   HValue* value = Pop();
   HHasInstanceType* result = new HHasInstanceType(value, JS_REGEXP_TYPE);
   ast_context()->ReturnInstruction(result, ast_id);
 }
 
 
+void HGraphBuilder::GenerateIsObject(int argument_count, int ast_id) {
+  ASSERT(argument_count == 1);
+
+  HValue* value = Pop();
+  HIsObject* test = new HIsObject(value);
+  ast_context()->ReturnInstruction(test, ast_id);
+}
+
+
 void HGraphBuilder::GenerateIsNonNegativeSmi(int argument_count,
                                              int ast_id) {
   BAILOUT("inlined runtime function: IsNonNegativeSmi");
 }
 
 
-void HGraphBuilder::GenerateIsObject(int argument_count, int ast_id) {
-  BAILOUT("inlined runtime function: IsObject");
-}
-
-
 void HGraphBuilder::GenerateIsUndetectableObject(int argument_count,
                                                  int ast_id) {
   BAILOUT("inlined runtime function: IsUndetectableObject");
 }
 
 
 void HGraphBuilder::GenerateIsStringWrapperSafeForDefaultValueOf(
     int argument_count,
     int ast_id) {
   BAILOUT("inlined runtime function: IsStringWrapperSafeForDefaultValueOf");
@@ skipping 693 matching lines @@
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (chunk_ != NULL) chunk_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal