[LLVMdev] problem with runOnLoop

[neda 8664]

hi all,

I want access to all basic blocks of function in a loop, so I used the
following code:

*bool parallel::runOnLoop(Loop *L, LPPassManager &LPM)
{
    for (Function::iterator bi= func->begin(); bi != func->end(); bi++){
       //
     }
}*

First loop run without problem, but for second loop I get the following
error:

*0  libLLVM-2.9.so 0x0137d530
1  libLLVM-2.9.so 0x0137fa6c
2                 0x002a7400 __kernel_sigreturn + 0
3  parallel.so    0x002895e9 parallel::runOnLoop(llvm::Loop*,
llvm::LPPassManager&) + 345
4  libLLVM-2.9.so 0x00982994
llvm::LPPassManager::runOnFunction(llvm::Function&) + 1156
5  libLLVM-2.9.so 0x00eb02c1
llvm::FPPassManager::runOnFunction(llvm::Function&) + 545
6  libLLVM-2.9.so 0x00eb03d7
llvm::FPPassManager::runOnModule(llvm::Module&) + 87
7  libLLVM-2.9.so 0x00eafde5
llvm::MPPassManager::runOnModule(llvm::Module&) + 517
8  libLLVM-2.9.so 0x00eaff8b llvm::PassManagerImpl::run(llvm::Module&) + 171
9  libLLVM-2.9.so 0x00eb008d llvm::PassManager::run(llvm::Module&) + 45
10 opt            0x0805b32f main + 5295
11 libc.so.6      0x002becc6 __libc_start_main + 230
12 opt            0x0804ff51
Stack dump:
0.    Program arguments: opt -dse -lda -memdep -basicaa -libcall-aa
-scev-aa -globalsmodref-aa -load
/home/llvm/src/Release+Debug+Profile+Asserts/lib/parallel.so -parallel
-dot-cfg obj.o -o out.o
1.    Running pass 'Function Pass Manager' on module 'obj.o'.
2.    Running pass 'Loop Pass Manager' on function '@main'
3.    Running pass 'parallel World Pass' on basic block '%bb4'
Segmentation fault (core dumped)*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20111212/f7e277ec/attachment.html>