[LLVMdev] MAJOR API CHANGE: LLVMContext

[Nicolas Geoffray]

That's awesome, thanks very much for working on this Owen. So if I 
understand correctly, there can be as many LLVMContext instances as we 
want? Or one module only has a single LLVMContext?

A similar question is: can I now delete constants created, after 
JIT-compiling a function's IR? I know we can already delete the body of 
the function, but not the constants the body needs. So can we do that now?

Thanks!
Nicolas

Owen Anderson wrote:
> Notice of a major upcoming API change:  The static methods for  
> constructing types and constants will be going away in the future.   
> Instead, the global uniquing tables that lurk behind these APIs will  
> be privatized within LLVMContext instances.
>
> What this means for you:  Your client application will need to create  
> an LLVMContext in main(), and pass it into a few APIs (the constructor  
> for Module, for instance).  You can, in theory, have more than one  
> LLVMContext as long as you never want Modules created under separate  
> contexts to interact.
>
> In the near term, I will be committing patches to do this conversion  
> for the existing LLVM tools, including Clang and LLVM-GCC, which  
> should provide examples for those following along at home.
>
> --Owen
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