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Griffin Wright

2012-Jan-12 19:48 UTC

[LLVMdev] 'opt' Aborted "While deleting: void %"

Hey everyone,

So I have an LLVM pass that appears to run completely and work fine, and
then it aborts at the very end.  When exiting the final runOnFunction call,
I get the following error / stack dump.  I cannot figure out why this is
happening for the life of me - does anyone have any ideas?  I'm not trying
to do any crazy deallocation or anything, it just seems like a normal pass
to me.

Thanks,
Griffin Wright

While deleting: void %
An asserting value handle still pointed to this value!
UNREACHABLE executed at /x/grwright/llvm/llvm-2.9/lib/VMCore/Value.cpp:569!
0  libLLVM-2.9.so 0xf6ef856b
1  libLLVM-2.9.so 0xf6ef82f8
2                 0xf7782400 __kernel_sigreturn + 0
3  libc.so.6      0xf57d4d52 abort + 386
4  libLLVM-2.9.so 0xf6ee40d4 llvm::SmallVector<char, 64u>::~SmallVector()
+
0
5  libLLVM-2.9.so 0xf6a5ce2e
llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*) + 662
6  libLLVM-2.9.so 0xf6a5b1ec llvm::Value::~Value() + 58
7  libLLVM-2.9.so 0xf66ee041 llvm::User::~User() + 93
8  libLLVM-2.9.so 0xf6a00d89 llvm::Instruction::~Instruction() + 121
9  libLLVM-2.9.so 0xf6a0351f llvm::CallInst::~CallInst() + 57
10 libLLVM-2.9.so 0xf68d9671
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)
+ 30
11 libLLVM-2.9.so 0xf68d8c80 llvm::iplist<llvm::Instruction,
llvm::ilist_traits<llvm::Instruction>>::erase(llvm::ilist_iterator<llvm::Instruction>) + 4812 libLLVM-2.9.so 0xf696ac37 llvm::iplist<llvm::Instruction,
llvm::ilist_traits<llvm::Instruction>>::erase(llvm::ilist_iterator<llvm::Instruction>,llvm::ilist_iterator<llvm::Instruction>) + 49
13 libLLVM-2.9.so 0xf696a7a0 llvm::iplist<llvm::Instruction,
llvm::ilist_traits<llvm::Instruction> >::clear() + 102
14 libLLVM-2.9.so 0xf6969420 llvm::BasicBlock::~BasicBlock() + 314
15 libLLVM-2.9.so 0xf696adb2
llvm::ilist_node_traits<llvm::BasicBlock>::deleteNode(llvm::BasicBlock*) +
30
16 libLLVM-2.9.so 0xf696a9a8 llvm::iplist<llvm::BasicBlock,
llvm::ilist_traits<llvm::BasicBlock>>::erase(llvm::ilist_iterator<llvm::BasicBlock>) + 4817 libLLVM-2.9.so 0xf696958f llvm::BasicBlock::eraseFromParent() + 77
18 libLLVM-2.9.so 0xf69b7b11 llvm::Function::dropAllReferences() + 159
19 libLLVM-2.9.so 0xf6a2dc59 llvm::Module::dropAllReferences() + 81
20 libLLVM-2.9.so 0xf6a2caf2 llvm::Module::~Module() + 50
21 opt            0x08081e36 std::auto_ptr<llvm::Module>::~auto_ptr() + 36
22 opt            0x0807d5a4 main + 5045
23 libc.so.6      0xf57bdbd6 __libc_start_main + 230
24 opt            0x0806de41
Stack dump:
0.	Program arguments: opt -debug -load
/x/grwright/llvm/llvm-sfi/RelRecovery/Debug+Asserts/lib/relRecovery.so
-profile-loader -profile-info-file=164.gzip/llvmprof.out -relRecovery
-rr-analysis-only -rr-use-exec-prof=true -rr-bench=164.gzip
164.gzip/164.gzip.link.bc -o 164.gzip/164.gzip.rel.bc 
Aborted

Duncan Sands

2012-Jan-12 20:26 UTC

head link

[LLVMdev] 'opt' Aborted "While deleting: void %"

Hi Griffin, did your pass create a data structure that holds values somehow,
and forgot to delete it?  Also, try running under valgrind in case this is
due to a memory error of some kind.

Ciao, Duncan.
> So I have an LLVM pass that appears to run completely and work fine, and
> then it aborts at the very end.  When exiting the final runOnFunction call,
> I get the following error / stack dump.  I cannot figure out why this is
> happening for the life of me - does anyone have any ideas?  I'm not
trying
> to do any crazy deallocation or anything, it just seems like a normal pass
> to me.
>
> Thanks,
> Griffin Wright
>
> While deleting: void %
> An asserting value handle still pointed to this value!
> UNREACHABLE executed at /x/grwright/llvm/llvm-2.9/lib/VMCore/Value.cpp:569!
> 0  libLLVM-2.9.so 0xf6ef856b
> 1  libLLVM-2.9.so 0xf6ef82f8
> 2                 0xf7782400 __kernel_sigreturn + 0
> 3  libc.so.6      0xf57d4d52 abort + 386
> 4  libLLVM-2.9.so 0xf6ee40d4 llvm::SmallVector<char,
64u>::~SmallVector() +
> 0
> 5  libLLVM-2.9.so 0xf6a5ce2e
> llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*) + 662
> 6  libLLVM-2.9.so 0xf6a5b1ec llvm::Value::~Value() + 58
> 7  libLLVM-2.9.so 0xf66ee041 llvm::User::~User() + 93
> 8  libLLVM-2.9.so 0xf6a00d89 llvm::Instruction::~Instruction() + 121
> 9  libLLVM-2.9.so 0xf6a0351f llvm::CallInst::~CallInst() + 57
> 10 libLLVM-2.9.so 0xf68d9671
>
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)
> + 30
> 11 libLLVM-2.9.so 0xf68d8c80 llvm::iplist<llvm::Instruction,
> llvm::ilist_traits<llvm::Instruction>
>> ::erase(llvm::ilist_iterator<llvm::Instruction>) + 48
> 12 libLLVM-2.9.so 0xf696ac37 llvm::iplist<llvm::Instruction,
> llvm::ilist_traits<llvm::Instruction>
>> ::erase(llvm::ilist_iterator<llvm::Instruction>,
> llvm::ilist_iterator<llvm::Instruction>) + 49
> 13 libLLVM-2.9.so 0xf696a7a0 llvm::iplist<llvm::Instruction,
> llvm::ilist_traits<llvm::Instruction>  >::clear() + 102
> 14 libLLVM-2.9.so 0xf6969420 llvm::BasicBlock::~BasicBlock() + 314
> 15 libLLVM-2.9.so 0xf696adb2
>
llvm::ilist_node_traits<llvm::BasicBlock>::deleteNode(llvm::BasicBlock*) +
> 30
> 16 libLLVM-2.9.so 0xf696a9a8 llvm::iplist<llvm::BasicBlock,
> llvm::ilist_traits<llvm::BasicBlock>
>> ::erase(llvm::ilist_iterator<llvm::BasicBlock>) + 48
> 17 libLLVM-2.9.so 0xf696958f llvm::BasicBlock::eraseFromParent() + 77
> 18 libLLVM-2.9.so 0xf69b7b11 llvm::Function::dropAllReferences() + 159
> 19 libLLVM-2.9.so 0xf6a2dc59 llvm::Module::dropAllReferences() + 81
> 20 libLLVM-2.9.so 0xf6a2caf2 llvm::Module::~Module() + 50
> 21 opt            0x08081e36 std::auto_ptr<llvm::Module>::~auto_ptr()
+ 36
> 22 opt            0x0807d5a4 main + 5045
> 23 libc.so.6      0xf57bdbd6 __libc_start_main + 230
> 24 opt            0x0806de41
> Stack dump:
> 0.	Program arguments: opt -debug -load
> /x/grwright/llvm/llvm-sfi/RelRecovery/Debug+Asserts/lib/relRecovery.so
> -profile-loader -profile-info-file=164.gzip/llvmprof.out -relRecovery
> -rr-analysis-only -rr-use-exec-prof=true -rr-bench=164.gzip
> 164.gzip/164.gzip.link.bc -o 164.gzip/164.gzip.rel.bc
> Aborted
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Griffin Wright

2012-Jan-13 14:42 UTC

head link

[LLVMdev] 'opt' Aborted "While deleting: void %"

Yes, it does - all function-wide data structures are cleared/initialized at
the beginning of each function.  But perhaps I need to delete them after
the last function instance?  I'm modifying someone's existing pass, and
this code worked for them at the time, albeit with a slightly older version
of LLVM.  Hmm.

-Griffin

On Thu, 12 Jan 2012 21:26:41 +0100, Duncan Sands <baldrick at free.fr>
wrote:> Hi Griffin, did your pass create a data structure that holds values
> somehow,
> and forgot to delete it?  Also, try running under valgrind in case this
is> due to a memory error of some kind.
> 
> Ciao, Duncan.
> 
>> So I have an LLVM pass that appears to run completely and work fine,
and
>> then it aborts at the very end.  When exiting the final runOnFunction
>> call,
>> I get the following error / stack dump.  I cannot figure out why this
is
>> happening for the life of me - does anyone have any ideas?  I'm not
>> trying
>> to do any crazy deallocation or anything, it just seems like a normal
>> pass
>> to me.
>>
>> Thanks,
>> Griffin Wright
>>
>> While deleting: void %
>> An asserting value handle still pointed to this value!
>> UNREACHABLE executed at
>> /x/grwright/llvm/llvm-2.9/lib/VMCore/Value.cpp:569!
>> 0  libLLVM-2.9.so 0xf6ef856b
>> 1  libLLVM-2.9.so 0xf6ef82f8
>> 2                 0xf7782400 __kernel_sigreturn + 0
>> 3  libc.so.6      0xf57d4d52 abort + 386
>> 4  libLLVM-2.9.so 0xf6ee40d4 llvm::SmallVector<char,
64u>::~SmallVector()>> +
>> 0
>> 5  libLLVM-2.9.so 0xf6a5ce2e
>> llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*) + 662
>> 6  libLLVM-2.9.so 0xf6a5b1ec llvm::Value::~Value() + 58
>> 7  libLLVM-2.9.so 0xf66ee041 llvm::User::~User() + 93
>> 8  libLLVM-2.9.so 0xf6a00d89 llvm::Instruction::~Instruction() + 121
>> 9  libLLVM-2.9.so 0xf6a0351f llvm::CallInst::~CallInst() + 57
>> 10 libLLVM-2.9.so 0xf68d9671
>>
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)>> + 30
>> 11 libLLVM-2.9.so 0xf68d8c80 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>
>>> ::erase(llvm::ilist_iterator<llvm::Instruction>) + 48
>> 12 libLLVM-2.9.so 0xf696ac37 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>
>>> ::erase(llvm::ilist_iterator<llvm::Instruction>,
>> llvm::ilist_iterator<llvm::Instruction>) + 49
>> 13 libLLVM-2.9.so 0xf696a7a0 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>  >::clear() + 102
>> 14 libLLVM-2.9.so 0xf6969420 llvm::BasicBlock::~BasicBlock() + 314
>> 15 libLLVM-2.9.so 0xf696adb2
>>
llvm::ilist_node_traits<llvm::BasicBlock>::deleteNode(llvm::BasicBlock*)
>> +
>> 30
>> 16 libLLVM-2.9.so 0xf696a9a8 llvm::iplist<llvm::BasicBlock,
>> llvm::ilist_traits<llvm::BasicBlock>
>>> ::erase(llvm::ilist_iterator<llvm::BasicBlock>) + 48
>> 17 libLLVM-2.9.so 0xf696958f llvm::BasicBlock::eraseFromParent() + 77
>> 18 libLLVM-2.9.so 0xf69b7b11 llvm::Function::dropAllReferences() + 159
>> 19 libLLVM-2.9.so 0xf6a2dc59 llvm::Module::dropAllReferences() + 81
>> 20 libLLVM-2.9.so 0xf6a2caf2 llvm::Module::~Module() + 50
>> 21 opt            0x08081e36
std::auto_ptr<llvm::Module>::~auto_ptr() +
>> 36
>> 22 opt            0x0807d5a4 main + 5045
>> 23 libc.so.6      0xf57bdbd6 __libc_start_main + 230
>> 24 opt            0x0806de41
>> Stack dump:
>> 0.	Program arguments: opt -debug -load
>> /x/grwright/llvm/llvm-sfi/RelRecovery/Debug+Asserts/lib/relRecovery.so
>> -profile-loader -profile-info-file=164.gzip/llvmprof.out -relRecovery
>> -rr-analysis-only -rr-use-exec-prof=true -rr-bench=164.gzip
>> 164.gzip/164.gzip.link.bc -o 164.gzip/164.gzip.rel.bc
>> Aborted
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Griffin Wright

2012-Jan-13 18:15 UTC

head link

[LLVMdev] 'opt' Aborted "While deleting: void %"

Using Valgrind hasn't shown me anything terribly unusual.  And I'm
confused
because its not even trying to delete a real instruction; deleting a void
type with no name? That doesn't make any sense...

Any other hints?  I've seen a few posts in the past about this relating to
some internal LLVM bugs...

-Griffin

On Thu, 12 Jan 2012 21:26:41 +0100, Duncan Sands <baldrick at free.fr>
wrote:> Hi Griffin, did your pass create a data structure that holds values
> somehow,
> and forgot to delete it?  Also, try running under valgrind in case this
is> due to a memory error of some kind.
> 
> Ciao, Duncan.
> 
>> So I have an LLVM pass that appears to run completely and work fine,
and
>> then it aborts at the very end.  When exiting the final runOnFunction
>> call,
>> I get the following error / stack dump.  I cannot figure out why this
is
>> happening for the life of me - does anyone have any ideas?  I'm not
>> trying
>> to do any crazy deallocation or anything, it just seems like a normal
>> pass
>> to me.
>>
>> Thanks,
>> Griffin Wright
>>
>> While deleting: void %
>> An asserting value handle still pointed to this value!
>> UNREACHABLE executed at
>> /x/grwright/llvm/llvm-2.9/lib/VMCore/Value.cpp:569!
>> 0  libLLVM-2.9.so 0xf6ef856b
>> 1  libLLVM-2.9.so 0xf6ef82f8
>> 2                 0xf7782400 __kernel_sigreturn + 0
>> 3  libc.so.6      0xf57d4d52 abort + 386
>> 4  libLLVM-2.9.so 0xf6ee40d4 llvm::SmallVector<char,
64u>::~SmallVector()>> +
>> 0
>> 5  libLLVM-2.9.so 0xf6a5ce2e
>> llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*) + 662
>> 6  libLLVM-2.9.so 0xf6a5b1ec llvm::Value::~Value() + 58
>> 7  libLLVM-2.9.so 0xf66ee041 llvm::User::~User() + 93
>> 8  libLLVM-2.9.so 0xf6a00d89 llvm::Instruction::~Instruction() + 121
>> 9  libLLVM-2.9.so 0xf6a0351f llvm::CallInst::~CallInst() + 57
>> 10 libLLVM-2.9.so 0xf68d9671
>>
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)>> + 30
>> 11 libLLVM-2.9.so 0xf68d8c80 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>
>>> ::erase(llvm::ilist_iterator<llvm::Instruction>) + 48
>> 12 libLLVM-2.9.so 0xf696ac37 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>
>>> ::erase(llvm::ilist_iterator<llvm::Instruction>,
>> llvm::ilist_iterator<llvm::Instruction>) + 49
>> 13 libLLVM-2.9.so 0xf696a7a0 llvm::iplist<llvm::Instruction,
>> llvm::ilist_traits<llvm::Instruction>  >::clear() + 102
>> 14 libLLVM-2.9.so 0xf6969420 llvm::BasicBlock::~BasicBlock() + 314
>> 15 libLLVM-2.9.so 0xf696adb2
>>
llvm::ilist_node_traits<llvm::BasicBlock>::deleteNode(llvm::BasicBlock*)
>> +
>> 30
>> 16 libLLVM-2.9.so 0xf696a9a8 llvm::iplist<llvm::BasicBlock,
>> llvm::ilist_traits<llvm::BasicBlock>
>>> ::erase(llvm::ilist_iterator<llvm::BasicBlock>) + 48
>> 17 libLLVM-2.9.so 0xf696958f llvm::BasicBlock::eraseFromParent() + 77
>> 18 libLLVM-2.9.so 0xf69b7b11 llvm::Function::dropAllReferences() + 159
>> 19 libLLVM-2.9.so 0xf6a2dc59 llvm::Module::dropAllReferences() + 81
>> 20 libLLVM-2.9.so 0xf6a2caf2 llvm::Module::~Module() + 50
>> 21 opt            0x08081e36
std::auto_ptr<llvm::Module>::~auto_ptr() +
>> 36
>> 22 opt            0x0807d5a4 main + 5045
>> 23 libc.so.6      0xf57bdbd6 __libc_start_main + 230
>> 24 opt            0x0806de41
>> Stack dump:
>> 0.	Program arguments: opt -debug -load
>> /x/grwright/llvm/llvm-sfi/RelRecovery/Debug+Asserts/lib/relRecovery.so
>> -profile-loader -profile-info-file=164.gzip/llvmprof.out -relRecovery
>> -rr-analysis-only -rr-use-exec-prof=true -rr-bench=164.gzip
>> 164.gzip/164.gzip.link.bc -o 164.gzip/164.gzip.rel.bc
>> Aborted
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
> _______________________________________________
> 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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