[LLVMdev] problem with runOnLoop

[neda 8664]

Thank you for your reply
Yes, I change them, so what should I do for another loops?

On Mon, Dec 12, 2011 at 7:54 PM, neda 8664 <neda8664 at gmail.com> wrote:

>  Thank you for your reply
>
> Yes, I change them, so what should I do for another loops?
>
> On Mon, Dec 12, 2011 at 7:42 PM, John Criswell <criswell at illinois.edu>wrote:
>
>>  On 12/12/11 9:59 AM, neda 8664 wrote:
>>
>> 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++){
>>        //
>>      }
>> }*
>>
>>
>> Are you modifying anything within this code (especially changes that
>> add/remove basic blocks or change their Terminator instructions)?
>> Depending on what you're doing, you may be invalidating the basic block
>> iterator bi.
>>
>> -- John T.
>>
>>
>> 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)*
>>
>>
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>>
>>
>>
>
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