Create frequently used symbols in the vm isolate

vm/intrinsifier_ia32.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // The intrinsic code below is executed before a method has built its frame.
 // The return address is on the stack and the arguments below it.
 // Registers EDX (arguments descriptor) and ECX (function) must be preserved.
 // Each intrinsification method returns true if the corresponding
 // Dart method was intrinsified.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
 #include "vm/assembler_macros.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/os.h"
 #include "vm/stub_code.h"
+#include "vm/symbols.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, enable_type_checks);
 
 
 #define __ assembler->
 
 bool Intrinsifier::ObjectArray_Allocate(Assembler* assembler) {
   // This snippet of inlined code uses the following registers:
@@ skipping 126 matching lines @@
   return false;
 }
 
 
 bool Intrinsifier::ImmutableArray_getIndexed(Assembler* assembler) {
   return Array_getIndexed(assembler);
 }
 
 
 static intptr_t ComputeObjectArrayTypeArgumentsOffset() {
-  const String& class_name = String::Handle(String::NewSymbol("ObjectArray"));
+  const String& class_name = String::Handle(Symbols::New("ObjectArray"));
   const Class& cls = Class::Handle(
       Library::Handle(Library::CoreImplLibrary()).LookupClass(class_name));
   ASSERT(!cls.IsNull());
   ASSERT(cls.HasTypeArguments());
   ASSERT(cls.NumTypeArguments() == 1);
   const intptr_t field_offset = cls.type_arguments_instance_field_offset();
   ASSERT(field_offset != Class::kNoTypeArguments);
   return field_offset;
 }
 
@@ skipping 54 matching lines @@
                      ECX);
   // Caller is responsible of preserving the value if necessary.
   __ ret();
   __ Bind(&fall_through);
   return false;
 }
 
 
 static intptr_t GetOffsetForField(const char* class_name_p,
                                   const char* field_name_p) {
-  const String& class_name = String::Handle(String::NewSymbol(class_name_p));
-  const String& field_name = String::Handle(String::NewSymbol(field_name_p));
+  const String& class_name = String::Handle(Symbols::New(class_name_p));
+  const String& field_name = String::Handle(Symbols::New(field_name_p));
   const Class& cls = Class::Handle(Library::Handle(
       Library::CoreImplLibrary()).LookupClass(class_name));
   ASSERT(!cls.IsNull());
   const Field& field = Field::ZoneHandle(cls.LookupInstanceField(field_name));
   ASSERT(!field.IsNull());
   return field.Offset();
 }
 
 
 // Allocate a GrowableObjectArray using the backing array specified.
@@ skipping 1108 matching lines @@
   __ Bind(&is_true);
   __ LoadObject(EAX, bool_true);
   __ ret();
   return true;
 }
 
 #undef __
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32