Revert "VM: New calling convention for generated code."

runtime/vm/block_scheduler.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/block_scheduler.h"
 
 #include "vm/allocation.h"
 #include "vm/code_patcher.h"
 #include "vm/flow_graph.h"
 
@@ skipping 72 matching lines @@
   if (!FLAG_emit_edge_counters) {
     return;
   }
   const Code& unoptimized_code = flow_graph()->parsed_function().code();
   ASSERT(!unoptimized_code.IsNull());
 
   ZoneGrowableArray<uword>* deopt_id_pc_pairs = new ZoneGrowableArray<uword>();
   const PcDescriptors& descriptors =
       PcDescriptors::Handle(unoptimized_code.pc_descriptors());
   PcDescriptors::Iterator iter(descriptors, RawPcDescriptors::kDeopt);
-  uword entry =
-      Instructions::Handle(unoptimized_code.instructions()).EntryPoint();
+  uword entry = unoptimized_code.EntryPoint();
   while (iter.MoveNext()) {
     intptr_t deopt_id = iter.DeoptId();
     ASSERT(deopt_id != Isolate::kNoDeoptId);
     uint32_t pc_offset = iter.PcOffset();
     deopt_id_pc_pairs->Add(static_cast<uword>(deopt_id));
     deopt_id_pc_pairs->Add(entry + pc_offset);
   }
 
   intptr_t entry_count =
       ComputeEdgeCount(unoptimized_code,
@@ skipping 138 matching lines @@
   for (intptr_t i = block_count - 1; i >= 0; --i) {
     if (chains[i]->first->block == flow_graph()->postorder()[i]) {
       for (Link* link = chains[i]->first; link != NULL; link = link->next) {
         flow_graph()->CodegenBlockOrder(true)->Add(link->block);
       }
     }
   }
 }
 
 }  // namespace dart