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

[Ryan Taylor]

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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