ObjectPool is also used on IA32 for deopt.

runtime/vm/disassembler.cc

 // Copyright (c) 2011, 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/disassembler.h"
 
 #include "vm/assembler.h"
 #include "vm/deopt_instructions.h"
 #include "vm/globals.h"
 #include "vm/il_printer.h"
@@ skipping 187 matching lines @@
   THR_Print("Pointer offsets for function: {\n");
   // Pointer offsets are stored in descending order.
   Object& obj = Object::Handle();
   for (intptr_t i = code.pointer_offsets_length() - 1; i >= 0; i--) {
     const uword addr = code.GetPointerOffsetAt(i) + code.EntryPoint();
     obj = *reinterpret_cast<RawObject**>(addr);
     THR_Print(" %d : %#" Px " '%s'\n",
               code.GetPointerOffsetAt(i), addr, obj.ToCString());
   }
   THR_Print("}\n");
-
-  ASSERT(ObjectPool::Handle(code.GetObjectPool()).Length() == 0);
 #else
   ASSERT(code.pointer_offsets_length() == 0);
+#endif
 
   const ObjectPool& object_pool = ObjectPool::Handle(code.GetObjectPool());
   object_pool.DebugPrint();
-#endif
 
   THR_Print("PC Descriptors for function '%s' {\n", function_fullname);
   PcDescriptors::PrintHeaderString();
   const PcDescriptors& descriptors =
       PcDescriptors::Handle(code.pc_descriptors());
   THR_Print("%s}\n", descriptors.ToCString());
 
   uword start = Instructions::Handle(code.instructions()).EntryPoint();
   const Array& deopt_table = Array::Handle(code.deopt_info_array());
   intptr_t deopt_table_length = DeoptTable::GetLength(deopt_table);
@@ skipping 101 matching lines @@
     THR_Print("}\n");
   }
   if (optimized && FLAG_trace_inlining_intervals) {
     code.DumpInlinedIntervals();
   }
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart