In case you have a way of modifying the JIT compiler (or the code generated) you can leverage the JIT Profiling API that we will releasewith VTune Analyzer 9.1 for Windows and Linux. The VTune Performance Analyzers JIT (Just-In-Time) Profiling API will provide functionality to profile runtime generated code and fix the problems you are encountering. This API allows analysis of runtime generated code with both sampling and call graph profilers which are already available with VTune Performance Analyzer.
The VTune Analyzer 9.1 will become available soon. If you think this might help you, please let me know and I can share