Don't emit the lazy deopt sequence when we can't deopt.

runtime/vm/flow_graph_compiler_ia32.cc

 // Copyright (c) 2013, 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/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 1110 matching lines @@
       }
     }
   }
 
   ASSERT(!block_order().is_empty());
   VisitBlocks();
 
   __ int3();
   GenerateDeferredCode();
 
-  if (is_optimizing()) {
+  if (is_optimizing() && Compiler::allow_recompilation()) {
     // Leave enough space for patching in case of lazy deoptimization from
     // deferred code.
     __ nop(CallPattern::pattern_length_in_bytes());
     lazy_deopt_pc_offset_ = assembler()->CodeSize();
     __ Jmp(*StubCode::DeoptimizeLazy_entry());
   }
 }
 
 
 void FlowGraphCompiler::GenerateCall(intptr_t token_pos,
@@ skipping 695 matching lines @@
   __ movups(reg, Address(ESP, 0));
   __ addl(ESP, Immediate(kFpuRegisterSize));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32