[LLVMdev] LoopInfo analysis in CallGraphSCCPass

Chandler Carruth chandlerc at google.com
Wed Oct 3 02:37:07 PDT 2012


On Wed, Oct 3, 2012 at 2:33 AM, vinay m <mvinay05041990 at gmail.com> wrote:

> Hi,
>    Is it possible to  recreate the LoopInfo analysis in my pass?
>

No. You need your pass to be a FunctionPass in order to use the LoopInfo
(and associated) analyses.


>
> Thanks ,
> Vinay
>
> On Wed, Oct 3, 2012 at 2:34 PM, Chandler Carruth <chandlerc at google.com>wrote:
>
>> This is not currently supported by the LLVM pass manager system. It is a
>> serious deficiency that I (and others) would like to address, but it
>> requires significant changes to the pass manager and analysis dependency
>> system.
>>
>> I have some dim hope of working on fixing this limitation, but it won't
>> be quick. ;]
>>
>>
>> On Wed, Oct 3, 2012 at 1:49 AM, vinay m <mvinay05041990 at gmail.com> wrote:
>>
>>> Hi,
>>>
>>>     How to get the LoopInfo analysis  in a CallGraphSCCPass  ?
>>>
>>>
>>>
>>> Thanks,
>>> Vinay
>>>
>>>
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>
>>>
>>
>
>
> --
> m.vinay
>
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