[LLVMdev] Runtime exception in DominatorTree.getRootNode()
Cristianno Martins
cristiannomartins at gmail.com
Fri Apr 12 09:17:59 PDT 2013
Hi Weibo,
I thought would be more efficient discussing here (I just saw that every
info was replicated on both emails you were sending to me).
I just run your example here on my working machine, and I didn't have any
issues with the namespace. Just tell me one thing: which line (and flags)
are you using when configuring and make your build llvm directory?
Oh, and one more thing: what is on your $PATH?
Cheers,
--
Cristianno Martins
PhD Student of Computer Science
University of Campinas
cmartins at ic.unicamp.br
<cristiannomartins at hotmail.com>
On Fri, Apr 12, 2013 at 12:03 PM, John Criswell <criswell at illinois.edu>wrote:
> On 4/12/13 9:51 AM, Bill He wrote:
>
> Thanks for your reply, John.
>
> I am using opt to run my pass. Should opt by default link in the
> library? Would you please give me some idea on fixing it? Thanks!
>
>
> Odd. I would think that opt would have that pass linked in statically.
>
> I'm not sure why it's not working. Does anyone else have an idea?
>
> -- John T.
>
>
>
> opt -load ../../../Debug+Asserts/lib/LLVMHello.dylib -hello < hello.bc >
> /dev/null
>
> My pass is just:
>
> #include "llvm/IR/Function.h"
> #include "llvm/Pass.h"
> #include "llvm/Support/raw_ostream.h"
> #include "llvm/Analysis/Dominators.h"
>
> using namespace llvm;
>
> namespace {
> struct Hello : public FunctionPass {
> static char ID;
> Hello() : FunctionPass(ID) { }
> virtual void getAnalysisUsage(AnalysisUsage &AU) const {
> AU.addRequired<DominatorTree>();
> }
> virtual bool runOnFunction(Function &F) {
> DominatorTree& DT = getAnalysis<DominatorTree>();
> BasicBlock* BB = DT.getRoot();
> return false;
> }
> };
> }
> char Hello::ID = 0;
> static RegisterPass<Hello> Z("hello", "My test analysis", true, true);
>
>
> On Fri, Apr 12, 2013 at 9:32 AM, John Criswell <criswell at illinois.edu>wrote:
>
>> On 4/11/13 10:30 PM, Bill He wrote:
>>
>> Hi all,
>>
>> I am trying to traverse a dominator tree and have encountered a weird
>> runtime exception:
>>
>> Here's my simple code:
>>
>> virtual bool runOnFunction(Function &F) {
>> DominatorTree& DT = getAnalysis<DominatorTree>();
>>
>> * DomTreeNode* rootNode = DT.getRootNode();*
>> return false.
>> }
>>
>> Here's the documentation page:
>> http://llvm.org/docs/doxygen/html/classllvm_1_1DominatorTree.html
>>
>> And here's my runtime exception:
>> dyld: lazy symbol binding failed: Symbol not found:
>> __ZN4llvm17DominatorTreeBaseINS_10BasicBlockEE11getRootNodeEv
>> Referenced from:
>> /Users/weibohe/Projects/llvm/llvm/Debug+Asserts/lib/LLVMSLVN.dylib
>>
>>
>> How are you running your pass? Based on the error, it looks like
>> whatever tool you're using to run your pass doesn't have the library
>> defining the DominatorTree code linked in.
>>
>> -- John T.
>>
>> Expected in: flat namespace
>>
>> dyld: Symbol not found:
>> __ZN4llvm17DominatorTreeBaseINS_10BasicBlockEE11getRootNodeEv
>> Referenced from:
>> /Users/weibohe/Projects/llvm/llvm/Debug+Asserts/lib/LLVMSLVN.dylib
>> Expected in: flat namespace
>>
>> 0 opt 0x0000000105f528de
>> llvm::sys::PrintStackTrace(__sFILE*) + 46
>> 1 opt 0x0000000105f52beb
>> _ZL28PrintStackTraceSignalHandlerPv + 27
>> 2 opt 0x0000000105f52ef9 _ZL13SignalHandleri + 297
>> 3 libsystem_c.dylib 0x00007fff90d32cfa _sigtramp + 26
>> 4 libsystem_c.dylib 0xfffffffffffffff8 _sigtramp + 1865208600
>> 5 libsystem_c.dylib 0x00007fff64a41948 _sigtramp + 3553684584
>> 6 libdyld.dylib 0x00007fff8afe2716 dyld_stub_binder_ + 13
>> 7 LLVMSLVN.dylib 0x00000001081a8040 void
>> std::__destroy_aux<llvm::PassInfo const**>(llvm::PassInfo const**,
>> llvm::PassInfo const**, std::__true_type) + 19904
>> 8 LLVMSLVN.dylib 0x00000001081998c1 (anonymous
>> namespace)::DVN::runOnFunction(llvm::Function&) + 65
>> 9 opt 0x0000000105eb27b2
>> llvm::FPPassManager::runOnFunction(llvm::Function&) + 434
>> 10 opt 0x0000000105eb2a98
>> llvm::FPPassManager::runOnModule(llvm::Module&) + 104
>> 11 opt 0x0000000105eb2e9a
>> llvm::MPPassManager::runOnModule(llvm::Module&) + 634
>> 12 opt 0x0000000105eb36ae
>> llvm::PassManagerImpl::run(llvm::Module&) + 302
>> 13 opt 0x0000000105eb3951
>> llvm::PassManager::run(llvm::Module&) + 33
>> 14 opt 0x0000000104e4d335 main + 6549
>> 15 opt 0x0000000104e3e434 start + 52
>> Stack dump:
>> 0. Program arguments: opt -load
>> ../../../Debug+Asserts/lib/LLVMSLVN.dylib -dvn
>> 1. Running pass 'Function Pass Manager' on module '<stdin>'.
>> 2. Running pass 'My test analysis' on function '@main'
>>
>>
>> Any idea on why this is happening? Any help or suggestion is
>> appreciated! Thanks in advance.
>>
>> Best,
>> Weibo
>>
>>
>>
>> _______________________________________________
>> LLVM Developers mailing listLLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>>
>>
>
>
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