Initial SIMDBC interpreter.

runtime/vm/raw_object_snapshot.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/native_entry.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
@@ skipping 1558 matching lines @@
               reader->ReadObjectImpl(kAsReference);
           result->SetObjectAt(i, *(reader->PassiveObjectHandle()));
           break;
         }
         case ObjectPool::kImmediate: {
           intptr_t raw_value = reader->Read<intptr_t>();
           result->SetRawValueAt(i, raw_value);
           break;
         }
         case ObjectPool::kNativeEntry: {
+#if !defined(TARGET_ARCH_DBC)
           // Read nothing. Initialize with the lazy link entry.
           uword new_entry = NativeEntry::LinkNativeCallEntry();
           result->SetRawValueAt(i, static_cast<intptr_t>(new_entry));
+#else
+          UNREACHABLE();  // DBC does not support lazy native call linking.
+#endif
           break;
         }
         default:
           UNREACHABLE();
       }
     }
   }
   return result->raw();
 }
 
@@ skipping 29 matching lines @@
     ASSERT(info_array != TypedData::null());
 
     writer->Write<intptr_t>(length);
     for (intptr_t i = 0; i < length; i++) {
       ObjectPool::EntryType entry_type =
           static_cast<ObjectPool::EntryType>(info_array->data()[i]);
       writer->Write<int8_t>(entry_type);
       Entry& entry = ptr()->data()[i];
       switch (entry_type) {
         case ObjectPool::kTaggedObject: {
+#if !defined(TARGET_ARCH_DBC)
           if (entry.raw_obj_ == StubCode::CallNativeCFunction_entry()->code()) {
             // Natives can run while precompiling, becoming linked and switching
             // their stub. Reset to the initial stub used for lazy-linking.
             writer->WriteObjectImpl(
                 StubCode::CallBootstrapCFunction_entry()->code(), kAsReference);
-          } else {
-            writer->WriteObjectImpl(entry.raw_obj_, kAsReference);
+            break;
           }
+#endif
+          writer->WriteObjectImpl(entry.raw_obj_, kAsReference);
           break;
         }
         case ObjectPool::kImmediate: {
           writer->Write<intptr_t>(entry.raw_value_);
           break;
         }
         case ObjectPool::kNativeEntry: {
           // Write nothing. Will initialize with the lazy link entry.
+#if defined(TARGET_ARCH_DBC)
+          UNREACHABLE();   // DBC does not support lazy native call linking.
+#endif
           break;
         }
         default:
           UNREACHABLE();
       }
     }
   }
 }
 
 
@@ skipping 2073 matching lines @@
     // We do not allow objects with native fields in an isolate message.
     writer->SetWriteException(Exceptions::kArgument,
                               "Illegal argument in isolate message"
                               " : (object is a UserTag)");
   } else {
     UNREACHABLE();
   }
 }
 
 }  // namespace dart