[LLVMdev] Fwd: Problem getting LoopInfo inside non-LoopPass

[Ryan Taylor]

I didn't put this in the original post because I first wanted to know if I
was using the getAnalysisUsage and getAnalysis correctly, which from what
I've read, it seems so, below is the full error I am getting;

On Wed, Nov 30, 2011 at 11:00 AM, Ryan Taylor <ryta1203 at gmail.com> wrote:

>
> UNREACHABLE executed!
> 0  opt             0x00000000008edc2f
> 1  opt             0x00000000008edfda
> 2  libpthread.so.0 0x00007f9c8e69bc60
> 3  libc.so.6       0x00007f9c8d986d05 gsignal + 53
> 4  libc.so.6       0x00007f9c8d98aab6 abort + 390
> 5  opt             0x00000000008da974 llvm::llvm_unreachable_internal(char
> const*, char const*, unsigned int) + 356
> 6  opt             0x000000000087e046
> 7  opt             0x0000000000882b45
> llvm::PMDataManager::add(llvm::Pass*, bool) + 741
> 8  opt             0x000000000087f413 llvm::PassManager::add(llvm::Pass*)
> + 259
> 9  opt             0x00000000004ab9be main + 2174
> 10 libc.so.6       0x00007f9c8d971eff __libc_start_main + 255
> 11 opt             0x000000000049f5f9
> Stack dump:
> On Wed, Nov 30, 2011 at 1:13 AM, David Blaikie <dblaikie at gmail.com> wrote:
>
>> On Tue, Nov 29, 2011 at 6:59 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:
>> > The following code is causing an "UNREACHABLE executed!" and a stack
>> dump,
>> > any ideas?
>>
>> The stack might be handy.
>>
>> > 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);
>> > }
>> >
>> > _______________________________________________
>> > LLVM Developers mailing list
>> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>> >
>> >
>>
>
>
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