More fixes for background compilation

runtime/vm/intermediate_language.cc

 // Copyright (c) 2013, 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.
 
 #include "vm/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/bootstrap.h"
 #include "vm/compiler.h"
 #include "vm/constant_propagator.h"
@@ skipping 19 matching lines @@
 namespace dart {
 
 DEFINE_FLAG(bool, propagate_ic_data, true,
     "Propagate IC data from unoptimized to optimized IC calls.");
 DEFINE_FLAG(bool, two_args_smi_icd, true,
     "Generate special IC stubs for two args Smi operations");
 DEFINE_FLAG(bool, unbox_numeric_fields, true,
     "Support unboxed double and float32x4 fields.");
 DECLARE_FLAG(bool, eliminate_type_checks);
 
+
+#if defined(DEBUG)
+void Instruction::CheckField(const Field& field) const {
+  ASSERT(field.IsZoneHandle());
+  ASSERT(!Compiler::IsBackgroundCompilation() || !field.IsOriginal());
+}
+#endif  // DEBUG
+
+
 Definition::Definition(intptr_t deopt_id)
     : Instruction(deopt_id),
       range_(NULL),
       type_(NULL),
       temp_index_(-1),
       ssa_temp_index_(-1),
       input_use_list_(NULL),
       env_use_list_(NULL),
       constant_value_(NULL) {
 }
@@ skipping 349 matching lines @@
   LoadStaticFieldInstr* other_load = other->AsLoadStaticField();
   ASSERT(other_load != NULL);
   // Assert that the field is initialized.
   ASSERT(StaticField().StaticValue() != Object::sentinel().raw());
   ASSERT(StaticField().StaticValue() != Object::transition_sentinel().raw());
   return StaticField().raw() == other_load->StaticField().raw();
 }
 
 
 const Field& LoadStaticFieldInstr::StaticField() const {
-  Field& field = Field::Handle();
+  Field& field = Field::ZoneHandle();
   field ^= field_value()->BoundConstant().raw();
   return field;
 }
 
 
 ConstantInstr::ConstantInstr(const Object& value, TokenPosition token_pos)
     : value_(value),
       token_pos_(token_pos) {
   // Check that the value is not an incorrect Integer representation.
   ASSERT(!value.IsBigint() || !Bigint::Cast(value).FitsIntoSmi());
@@ skipping 3305 matching lines @@
   set_native_c_function(native_function);
   function().SetIsNativeAutoSetupScope(auto_setup_scope);
   Dart_NativeEntryResolver resolver = library.native_entry_resolver();
   bool is_bootstrap_native = Bootstrap::IsBootstapResolver(resolver);
   set_is_bootstrap_native(is_bootstrap_native);
 }
 
 #undef __
 
 }  // namespace dart