Eliminate object table and use regular object pool for deoptimization infos.

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/bit_vector.h"
 #include "vm/cha.h"
@@ skipping 828 matching lines @@
   const PcDescriptors& descriptors = PcDescriptors::Handle(
       pc_descriptors_list_->FinalizePcDescriptors(code.EntryPoint()));
   if (!is_optimizing_) descriptors.Verify(parsed_function_.function());
   code.set_pc_descriptors(descriptors);
   code.set_entry_patch_pc_offset(entry_patch_pc_offset_);
   code.set_patch_code_pc_offset(patch_code_pc_offset_);
   code.set_lazy_deopt_pc_offset(lazy_deopt_pc_offset_);
 }
 
 
-void FlowGraphCompiler::FinalizeDeoptInfo(const Code& code) {
+RawArray* FlowGraphCompiler::CreateDeoptInfo(Assembler* assembler) {
   // 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(zone(), incoming_arg_count);
+  DeoptInfoBuilder builder(zone(), incoming_arg_count, assembler);
 
   intptr_t deopt_info_table_size = DeoptTable::SizeFor(deopt_infos_.length());
   if (deopt_info_table_size == 0) {
-    code.set_deopt_info_array(Object::empty_array());
-    code.set_object_table(Object::empty_array());
+    return Object::empty_array().raw();
   } else {
     const Array& array =
         Array::Handle(Array::New(deopt_info_table_size, Heap::kOld));
     Smi& offset = Smi::Handle();
     TypedData& info = TypedData::Handle();
     Smi& reason_and_flags = 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);
       reason_and_flags = DeoptTable::EncodeReasonAndFlags(
           deopt_infos_[i]->reason(),
           deopt_infos_[i]->flags());
       DeoptTable::SetEntry(array, i, offset, info, reason_and_flags);
     }
-    code.set_deopt_info_array(array);
-    const Array& object_array =
-        Array::Handle(Array::MakeArray(builder.object_table()));
-    ASSERT(code.object_table() == Array::null());
-    code.set_object_table(object_array);
+    return array.raw();
   }
 }
 
 
 void FlowGraphCompiler::FinalizeStackmaps(const Code& code) {
   if (stackmap_table_builder_ == NULL) {
     // The unoptimizing compiler has no stack maps.
     code.set_stackmaps(Object::null_array());
   } else {
     // Finalize the stack map array and add it to the code object.
@@ skipping 790 matching lines @@
 
 
 void FlowGraphCompiler::FrameStateClear() {
   ASSERT(!is_optimizing());
   frame_state_.TruncateTo(0);
 }
 #endif
 
 
 }  // namespace dart