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

[Griffin Wright]

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>) + 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