llvm dev - Jul 2010 - [LLVMdev] LLVM meta-data for run-time optimization

Hi

I read on LLVM blog that meta-data has been implemented to coney debug
information to run-time system.
Can one use meta-data to convey developer specifc hints to run-time system
(e.g. JIT compiler)?
Keen to know your thoughts on this.

Thanks
Javed

-- 
my homepage: http://www.javedabsar.com
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Javed Absar wrote:
> Hi
>  
> I read on LLVM blog that meta-data has been implemented to coney debug 
> information to run-time system.
> Can one use meta-data to convey developer specifc hints to run-time 
> system (e.g. JIT compiler)?
> Keen to know your thoughts on this.
I don't see why not.  I've used LLVM metadata to record type-inference 
information and to assign IDs for dynamic tracing.  You can probably use 
it to convey developer hints to a JIT, although you should see if other 
LLVM IR features (like function attributes) are better suited for your task.

I recommend reading over the LLVM Language Reference manual on the docs 
page to get an idea of what LLVM's IR has to offer.

-- John T.
>  
> Thanks
> Javed
>
> -- 
> my homepage: http://www.javedabsar.com

Thanks John. I just wanted an expert opinion on that issue, to set the
initial direction for my work.
So if you say thats possible i can invest time into it.

On 28 July 2010 23:26, John Criswell <criswell at illinois.edu> wrote:
> Javed Absar wrote:
>
>> Hi
>>  I read on LLVM blog that meta-data has been implemented to coney debug
>> information to run-time system.
>> Can one use meta-data to convey developer specifc hints to run-time
system
>> (e.g. JIT compiler)?
>> Keen to know your thoughts on this.
>>
>
> I don't see why not.  I've used LLVM metadata to record
type-inference
> information and to assign IDs for dynamic tracing.  You can probably use it
> to convey developer hints to a JIT, although you should see if other LLVM
IR
> features (like function attributes) are better suited for your task.
>
> I recommend reading over the LLVM Language Reference manual on the docs
> page to get an idea of what LLVM's IR has to offer.
>
> -- John T.
>
>
>  Thanks
>> Javed
>>
>> --
>> my homepage: http://www.javedabsar.com
>>
>
>

-- 
my homepage: http://www.javedabsar.com
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