[LLVMdev] llvm-java

[Nicolas Geoffray]

Hi Andre,

Andre Tavares wrote:
> Nicolas,
>
> I think the performance of my Pass will be the same independent of which 
> type I use. But if I make transformations I will reduce the performance 
> of other optimizations.
>
>   

I don't get it. What is the cons then of a simulation?

> The pi functions can be implemented with copy instructions. 

Store instructions?

> This way it 
> won't change other optimizations.
>
>   

Why would the analysis change other optimizations?

> Example:
> a1, a2 = pi(a) into
> a1 = a
> a2 = a
>
>   

OK, so your pass/analysis  creates the stores? Why do you need to 
introduce the pi name?

(Btw, I have no knowledge on SSI/SSA construction theories, so maybe I 
need a higher-level explanation of the problem)

Thanks,
Nicolas