compiler/optimizing/code_generator_arm.cc [553:586]:
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      } else {
        DCHECK(instruction_->IsInvoke());
        DCHECK(instruction_->GetLocations()->Intrinsified());
        DCHECK((instruction_->AsInvoke()->GetIntrinsic() == Intrinsics::kUnsafeGetObject) ||
               (instruction_->AsInvoke()->GetIntrinsic() == Intrinsics::kUnsafeGetObjectVolatile))
            << instruction_->AsInvoke()->GetIntrinsic();
        DCHECK_EQ(offset_, 0U);
        DCHECK(index_.IsRegisterPair());
        // UnsafeGet's offset location is a register pair, the low
        // part contains the correct offset.
        index = index_.ToLow();
      }
    }

    // We're moving two or three locations to locations that could
    // overlap, so we need a parallel move resolver.
    InvokeRuntimeCallingConvention calling_convention;
    HParallelMove parallel_move(codegen->GetGraph()->GetArena());
    parallel_move.AddMove(ref_,
                          Location::RegisterLocation(calling_convention.GetRegisterAt(0)),
                          Primitive::kPrimNot,
                          nullptr);
    parallel_move.AddMove(obj_,
                          Location::RegisterLocation(calling_convention.GetRegisterAt(1)),
                          Primitive::kPrimNot,
                          nullptr);
    if (index.IsValid()) {
      parallel_move.AddMove(index,
                            Location::RegisterLocation(calling_convention.GetRegisterAt(2)),
                            Primitive::kPrimInt,
                            nullptr);
      codegen->GetMoveResolver()->EmitNativeCode(&parallel_move);
    } else {
      codegen->GetMoveResolver()->EmitNativeCode(&parallel_move);
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compiler/optimizing/code_generator_x86.cc [570:603]:
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      } else {
        DCHECK(instruction_->IsInvoke());
        DCHECK(instruction_->GetLocations()->Intrinsified());
        DCHECK((instruction_->AsInvoke()->GetIntrinsic() == Intrinsics::kUnsafeGetObject) ||
               (instruction_->AsInvoke()->GetIntrinsic() == Intrinsics::kUnsafeGetObjectVolatile))
            << instruction_->AsInvoke()->GetIntrinsic();
        DCHECK_EQ(offset_, 0U);
        DCHECK(index_.IsRegisterPair());
        // UnsafeGet's offset location is a register pair, the low
        // part contains the correct offset.
        index = index_.ToLow();
      }
    }

    // We're moving two or three locations to locations that could
    // overlap, so we need a parallel move resolver.
    InvokeRuntimeCallingConvention calling_convention;
    HParallelMove parallel_move(codegen->GetGraph()->GetArena());
    parallel_move.AddMove(ref_,
                          Location::RegisterLocation(calling_convention.GetRegisterAt(0)),
                          Primitive::kPrimNot,
                          nullptr);
    parallel_move.AddMove(obj_,
                          Location::RegisterLocation(calling_convention.GetRegisterAt(1)),
                          Primitive::kPrimNot,
                          nullptr);
    if (index.IsValid()) {
      parallel_move.AddMove(index,
                            Location::RegisterLocation(calling_convention.GetRegisterAt(2)),
                            Primitive::kPrimInt,
                            nullptr);
      codegen->GetMoveResolver()->EmitNativeCode(&parallel_move);
    } else {
      codegen->GetMoveResolver()->EmitNativeCode(&parallel_move);
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