[LLVMdev] void llvm::PATypeHolder::addRef(): Assertion `Ty && "Type Holder has a null type!"' failed.

[Maurice Gittens]

Hi,

I am using current SVN and in the last week or so, something causing the
following assertion failure has changed.

   void llvm::PATypeHolder::addRef(): Assertion `Ty && "Type Holder has a
null type!"' failed.

The corresponding stack trace is:

#0  0x000000339ec332f5 in raise () from /lib64/libc.so.6
#1  0x000000339ec34b20 in abort () from /lib64/libc.so.6
#2  0x000000339ec2c2fa in __assert_fail () from /lib64/libc.so.6
#3  0x0000000000ba35e9 in llvm::PATypeHolder::addRef (this=0x1d7a740) at
/home/maurice/installation/llvm-dev/include/llvm/Type.h:417
#4  0x0000000000dd872d in llvm::PATypeHolder::PATypeHolder(const struct
llvm::Type *) (this=0x1d7a740, ty=0x0)
    at
/home/maurice/installation/llvm-dev/include/llvm/AbstractTypeUser.h:143
#5  0x00000000015828d8 in llvm::DerivedType::dropAllTypeUses
(this=0x1d777d0) at Type.cpp:469
#6  0x0000000001584b1f in llvm::DerivedType::unlockedRefineAbstractTypeTo
(this=0x1d777d0, NewType=0x1d5b050) at Type.cpp:1454
#7  0x000000000158b84c in llvm::TypeMap<llvm::PointerValType,
llvm::PointerType>::RefineAbstractType (this=0x1d5afe0, Ty=0x1d777d0,
    OldType=0x1d77780, NewType=0x1d54190) at Type.cpp:884
#8  0x0000000001584fe2 in llvm::PointerType::refineAbstractType
(this=0x1d777d0, OldType=0x1d77780, NewType=0x1d54190) at Type.cpp:1575
#9  0x0000000001584b8f in llvm::DerivedType::unlockedRefineAbstractTypeTo
(this=0x1d77780, NewType=0x1d54190) at Type.cpp:1473
#10 0x0000000001584cba in llvm::DerivedType::refineAbstractTypeTo
(this=0x1d77780, NewType=0x1d54190) at Type.cpp:1493
#11 0x0000000000deedda in llvm::BitcodeReader::ParseTypeTable
(this=0x1d75530) at BitcodeReader.cpp:580
#12 0x0000000000df230e in llvm::BitcodeReader::ParseModule (this=0x1d75530,
ModuleID="receptacle-plug-test.bc") at BitcodeReader.cpp:1142
#13 0x0000000000df39b6 in llvm::BitcodeReader::ParseBitcode (this=0x1d75530)
at BitcodeReader.cpp:1389
#14 0x0000000000df8431 in llvm::getBitcodeModuleProvider (Buffer=0x1d754c0,
Context=@0x7fffffffdd90, ErrMsg=0x7fffffffd3f0)
    at BitcodeReader.cpp:2084
#15 0x0000000000df84e3 in llvm::ParseBitcodeFile (Buffer=0x1d754c0,
Context=@0x7fffffffdd90, ErrMsg=0x7fffffffd3f0) at BitcodeReader.cpp:2102
#16 0x0000000000de1b76 in llvm::Linker::LoadObject (this=0x7fffffffdc60,
FN=@0x1d6a330) at Linker.cpp:106
#17 0x0000000000dd03eb in llvm::Linker::LinkInFile (this=0x7fffffffdc60,
File=@0x1d6a330, is_native=@0x7fffffffd64b) at LinkItems.cpp:196
#18 0x0000000000dd07ea in llvm::Linker::LinkInFiles (this=0x7fffffffdc60,
Files=std::vector of length 1, capacity 1 = {...}) at LinkItems.cpp:235
#19 0x0000000000b8a904 in main (argc=2, argv=0x7fffffffe098,
env=0x7fffffffe0b0) at main.cpp:209


If I do _not_ include the following line at the beginning of my program

        llvm::llvm_start_multithreaded();

then all is well.

Does anyone have a clue what is going on?

Thanks,

Kind regards,
Maurice
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