[LLVMdev] What is the right way to register an alias analysis pass

[XiaoLong Tang]

Hi All, 

Guess I figured out the way to register an alias analysis pass. 

First, we register an alias analysis pass as normally as we do for other passes. That is, 
     
     llvm::RegisterPass<Analyzer> X("rci", "RCI Pass");

Then register this analysis pass also in a group. That is, 

    llvm::RegisterAnalysisGroup<AliasAnalysis> Y("rci");

If I am wrong at some point, please get me posted. Thanks. 


Xiaolong


> 
> Hi everyone, 
> 
> I am wondering what is the right way to register an alias analysis
> pass. 
> 
> My alias analysis pass is implemented in a dynamic load module. As I
> can see, a general way to register a pass looks like:
> 
>   llvm::RegisterPass<Analyzer> X("rci", "RCI Pass");
> 
> However, registering a type-based analysis uses:
> 
>   INITIALIZE_AG_PASS(...)
> 
> I think, registering an alias analysis is special, as an alias
> analysis should be chained to other alias analysis. So, my question is
> how to register an alias analysis properly. 
> 
> Thanks. 
> 
> Xiaolong
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