Optimized loads/stores for scalar list: Uint8Clamped, Int8, Int16, Uint16.

runtime/vm/deopt_instructions.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.
 
 #include "vm/deopt_instructions.h"
 
 #include "vm/assembler_macros.h"
 #include "vm/code_patcher.h"
 #include "vm/intermediate_language.h"
 #include "vm/locations.h"
@@ skipping 250 matching lines @@
 
   void Execute(DeoptimizationContext* deopt_context, intptr_t to_index) {
     Function& function = Function::Handle(deopt_context->isolate());
     function ^= deopt_context->ObjectAt(object_table_index_);
     const Code& code =
         Code::Handle(deopt_context->isolate(), function.unoptimized_code());
     uword continue_at_pc = code.GetDeoptBeforePcAtDeoptId(deopt_id_);
     intptr_t* to_addr = deopt_context->GetToFrameAddressAt(to_index);
     *to_addr = continue_at_pc;
 
-
     uword pc = code.GetPcForDeoptId(deopt_id_, PcDescriptors::kIcCall);
     if (pc != 0) {
       // If the deoptimization happened at an IC call, update the IC data
       // to avoid repeated deoptimization at the same site next time around.
       ICData& ic_data = ICData::Handle();
       CodePatcher::GetInstanceCallAt(pc, &ic_data, NULL);
       if (!ic_data.IsNull()) {
         ic_data.set_deopt_reason(deopt_context->deopt_reason());
       }
     }
@@ skipping 541 matching lines @@
                           Smi* offset,
                           DeoptInfo* info,
                           Smi* reason) {
   intptr_t i = index * kEntrySize;
   *offset ^= table.At(i);
   *info ^= table.At(i + 1);
   *reason ^= table.At(i + 2);
 }
 
 }  // namespace dart