More reduction of accessing TLS by caching/passing isolate value.

runtime/vm/flow_graph_compiler.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/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/cha.h"
 #include "vm/dart_entry.h"
@@ skipping 699 matching lines @@
   code.set_pc_descriptors(descriptors);
 }
 
 
 void FlowGraphCompiler::FinalizeDeoptInfo(const Code& code) {
   // For functions with optional arguments, all incoming arguments are copied
   // to spill slots. The deoptimization environment does not track them.
   const Function& function = parsed_function().function();
   const intptr_t incoming_arg_count =
       function.HasOptionalParameters() ? 0 : function.num_fixed_parameters();
-  DeoptInfoBuilder builder(incoming_arg_count);
+  DeoptInfoBuilder builder(isolate(), incoming_arg_count);
 
   const Array& array =
       Array::Handle(Array::New(DeoptTable::SizeFor(deopt_infos_.length()),
                                Heap::kOld));
   Smi& offset = Smi::Handle();
   DeoptInfo& info = DeoptInfo::Handle();
   Smi& reason = Smi::Handle();
   for (intptr_t i = 0; i < deopt_infos_.length(); i++) {
     offset = Smi::New(deopt_infos_[i]->pc_offset());
     info = deopt_infos_[i]->CreateDeoptInfo(this, &builder, array);
@@ skipping 574 matching lines @@
 
   for (int i = 0; i < len; i++) {
     sorted->Add(CidTarget(ic_data.GetReceiverClassIdAt(i),
                           &Function::ZoneHandle(ic_data.GetTargetAt(i)),
                           ic_data.GetCountAt(i)));
   }
   sorted->Sort(HighestCountFirst);
 }
 
 }  // namespace dart