[LLVMdev] Error while making new pass

[Devang Patel]

On Oct 8, 2008, at 10:59 AM, kapil anand wrote:

> Hi Devang,
>
> GlobalModRefPass is also a ModulePass and it uses CallGraph Analysis.
> So, I think it should not necessary to extend CallGraphSCCPass to use
> CallGraph information. Module Pass shoule be sufficient...

ok, but you're Registering your pass in CallGraph Analysis group.
What if you remove "RegisterAnalysisGroup" ? Is there a need ?
-
Devang
>
>
>
> --Kapil
>
> On 10/8/08, Devang Patel <dpatel at apple.com> wrote:
>> Hi Kapil,
>>
>> On Oct 8, 2008, at 10:19 AM, kapil anand wrote:
>>
>>> Hi all,
>>>
>>> I need a new kind of analysis on LLVM Module, so I made a new pass
>>> to do this. This new pass extends the ModulePass class and follows
>>> the conventions used in GlobalModRefPass, which is also a Module
>>> Pass.I need the CallGraph analysis for this pass, hence I have added
>>> (addRequired(CallGraph)) in getAnalysisUsage function of this new
>>> pass.
>>
>> A module pass may not required CallGraph. Probably, you want to make
>> your pass a CallGraphSCCPass, e.g. Inliner.
>>
>>> I also added it to CallGraph Analysis group through
>>> "RegisterAnalysisGroup"
>>>
>>> This new pass is not part of any LLVM library  and is not present in
>>> LLVM source tree . Rather it is part of my own project tree. I
>>> included required header files and specified the required library in
>>> the linker. It compiles and links fine but when I reach at
>>> getAnalysis function to get CallGraph analysis, it gives me
>>> following runtime error
>>>
>>> Assertion  "resover && pass has not been inserted into a Pass
>>> Manager Object" failed.
>>>
>>> What other steps do I need to follow to get rid of this error.
>>>
>>> Thanks
>>>
>>> --Kapil
>>>
>>>
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>> -
>> Devang
>>
>>
>>
>>
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-
Devang