Re: [rvm-research] Instrumentation in baseline compiler

Hi Priyanka,

The baseline compiler already adds instrumentation to count taken vs. 
not-taken branch frequency. Take a look at the EdgeCounts class for a 
starting point. The branch frequencies get passed to the opt compiler (I 
think BranchProfiles is the best place to look?), which also seems to be 
something you want to do.

I hope that helps as a starting point. For follow-up questions, it would 
help if you could provide more details about what you've already 
investigated and what exactly you're trying to do, e.g., should the 
trace of basic blocks be a whole-program path, or do you want to 
aggregate profile information bounded-length paths -- and if so, should 
they be acycle/intraprocedural or something else?

Cheers,
Mike

On 03/28/2014 12:48 PM, Priyanka Bhayana wrote:
> Hi,
> I am using jikes rvm as research infrastructure. I want to 
> instrumentation so as to get the basic blocks frequency as well as the 
> trace of basic blocks so that the instructions in the block can be 
> rescheduled. I want these trace for baseline compiler.Is there any 
> file in jikes source which can be used for this purpose? Can this 
> thing done with jikesrvm?
>
> -- 
> Thanks&Regards
> Priyanka
>
>
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