llvm dev - Sep 2013 - [LLVMdev] Related to the LLVM Intrinsic functions.

Hello, 

I have a need to change the parameter type of llvm.lifetime.start/end
intrinsic functions to get other defined type, but i do not want to replace
the current definition of the intrinsic function with the new definition. Is
there a way, to do such things for a specific target? 
If the only way to do this is to create a separate file for my target and
write there a target specific definitions then I would appreciate if someone
could describe me how I have to overload the existing intrinsic functions
and how the compiler will differentiate which one to use? 

Thanks, 
Arsen



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Arsen Hakobyan wrote:
> Hello,
>
> I have a need to change the parameter type of llvm.lifetime.start/end
> intrinsic functions to get other defined type, but i do not want to replace
> the current definition of the intrinsic function with the new definition.
Is
> there a way, to do such things for a specific target?
> If the only way to do this is to create a separate file for my target and
> write there a target specific definitions then I would appreciate if
someone
> could describe me how I have to overload the existing intrinsic functions
> and how the compiler will differentiate which one to use?
The intent is that you have a bitcast to i8* then pass that into 
llvm.lifetime.start/end, thus removing the need to do everything else 
you were just asking questions about. Is there any reason why this 
doesn't work?

Nick

Thank you Nick.



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