| Index: src/codegen.cc
 | 
| diff --git a/src/codegen.cc b/src/codegen.cc
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| index 13ce2218df41d972fda1c2b715fd3c8fcce9722f..f6c36682de7f67bac9e96bdcb2f11f77c6773f87 100644
 | 
| --- a/src/codegen.cc
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| +++ b/src/codegen.cc
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| @@ -165,6 +165,8 @@ void CodeGenerator::PrintCode(Handle<Code> code, CompilationInfo* info) {
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|              function->debug_name()->ToCString().get(), tracing_scope.file());
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|        }
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|        PrintF(tracing_scope.file(), "--- Optimized code ---\n");
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| +      PrintF(tracing_scope.file(),
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| +             "optimization_id = %d\n", info->optimization_id());
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|      } else {
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|        PrintF(tracing_scope.file(), "--- Code ---\n");
 | 
|      }
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| 
 |