[LLVMdev] Error when trying to chain two llvm transform passes

[Ashwin kumar]

Hi,

I am trying to chain two transform passes.

** The first pass is a function pass which requires the 'memory dependence pass' .


** The second pass is a function pass which requires the first pass above.

The passes run fine when executed alone.


I get the following error when I try to run my second pass with the following code added

   
      
>    
>       void getAnalysisUsage(AnalysisUsage &AU)const{
>           AU.setPreservesCFG();
>           AU.addRequired<First_Pass>();
>           
>       }


Assertion failed: (PI && "Expected required passes to be initialized"), function schedulePass, file PassManager.cpp, line 597.


I register the passes using RegisterPass function call. What else should I be doing?


I appreciate your help!!


regards,
Ashwin

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121030/ac16e036/attachment.html>