[LLVMdev] Problem getting LoopInfo inside non-LoopPass

[Ryan Taylor]

So it seems that Polly has what I am looking for but when installing, the
polly-test is unable to see libisl.so.8 even though it's installed. I've
set all the paths correctly according to their website. I realize they have
their own mailing list but figured someone here might know also.

On Wed, Nov 30, 2011 at 10:29 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:

>
>
>  Thanks for the info. Curious, do you know if there is an opt that will
> put all loops, including nested ones, in functions (ie each loop in it's
> own function)? What I'm trying to do is create a way for each loop to have
> only one exit. I want all loops to be single exit loops?
>
>   I can write my own pass but I'd rather not. I think that if I can put
> each loop into it's own function then call merge return that might do it.
> Ideas?
>
> On Thu, Dec 1, 2011 at 12:32 AM, Pankaj Gode <godepankaj at yahoo.com> wrote:
>
>> In addition to the link below, please check for functions like
>> "llvm.debug.declare", "llvm.debug.value", as you will not get LoopInfo for
>> these.
>>
>> Pankaj
>>
>>
>>  *From:* Devang Patel <dpatel at apple.com>
>> *To:* Ryan Taylor <ryta1203 at gmail.com>
>> *Cc:* llvmdev at cs.uiuc.edu
>> *Sent:* Wednesday, November 30, 2011 11:08 PM
>>
>> *Subject:* Re: [LLVMdev] Problem getting LoopInfo inside non-LoopPass
>>
>> Ryan,
>>
>> See http://lists.cs.uiuc.edu/pipermail/llvmdev/2011-November/045423.html
>>
>> -
>> Devang
>>
>> On Nov 29, 2011, at 6:59 PM, Ryan Taylor wrote:
>>
>> > The following code is causing an "UNREACHABLE executed!" and a stack
>> dump, any ideas?
>> >
>> > namespace {
>> >  struct myPass : public CallGraphSCCPass {
>> >  static char ID;
>> >  myPass() : CallGraphSCCPass(ID) {}
>> >  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
>> >            AU.setPreservesAll();
>> >            AU.addRequired<LoopInfo>();
>> >  }
>> >  virtual bool runOnSCC(CallGraphSCC &SCC) {
>> >        for (CallGraphSCC::iterator CGNodeItr = SCC.begin(),
>> CFNodeItrE=SCC.end();CGNodeItr!=CGNodeItrE;++CGNodeItr)  }
>> >                  const CallGraphNode *CGNode = *CGNodeItr;
>> >                  Function *F = CGNode->getFunction();
>> >                  if (!F->isDeclaration())
>> >                                LoopInfo &LI = getAnalysis<LoopInfo>(*F);
>> >        }
>> >        return false;
>> >    }
>> >  };
>> >    char myPass::ID = 0;
>> >    static RegisterPass<myPass> X("myPass", "This is my pass", false,
>> false);
>> > }
>> > _______________________________________________
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>>
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>>
>>
>
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