Adds LoadClassIdInstr to DBC

runtime/vm/simulator_dbc.cc

 // Copyright (c) 2016, 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 <setjmp.h>  // NOLINT
 #include <stdlib.h>
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_DBC)
 
@@ skipping 1760 matching lines @@
   }
 
   {
     BYTECODE(Jump, 0);
     const int32_t target = static_cast<int32_t>(op) >> 8;
     pc += (target - 1);
     DISPATCH();
   }
 
   {
+    BYTECODE(LoadClassId, A_D);
+    const uint16_t object_reg = rD;
+    RawObject* obj = static_cast<RawObject*>(FP[object_reg]);
+    FP[rA] = SimulatorHelpers::GetClassIdAsSmi(obj);
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(LoadClassIdTOS, 0);
+    RawObject* obj = static_cast<RawObject*>(SP[0]);
+    SP[0] = SimulatorHelpers::GetClassIdAsSmi(obj);
+    DISPATCH();
+  }
+
+  {
     BYTECODE(StoreIndexedTOS, 0);
     SP -= 3;
     RawArray* array = static_cast<RawArray*>(SP[1]);
     RawSmi* index = static_cast<RawSmi*>(SP[2]);
     RawObject* value = SP[3];
     ASSERT(array->GetClassId() == kArrayCid);
     ASSERT(!index->IsHeapObject());
     array->StorePointer(array->ptr()->data() + Smi::Value(index), value);
     DISPATCH();
   }
@@ skipping 102 matching lines @@
   special_[kExceptionSpecialIndex] = raw_exception;
   special_[kStacktraceSpecialIndex] = raw_stacktrace;
   buf->Longjmp();
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 
 #endif  // defined TARGET_ARCH_DBC