llvm dev - Sep 2017 - Link error: undefined reference to APIInt functions

Hi,


I’m getting link error when compiling an executable where llvm::APIInt is used.

Following is the error:


/usr/local/include/llvm/ADT/APInt.h:1372: undefined reference to
`llvm::APInt::countLeadingZerosSlowCase() const'

The source file is a simple program, where ConstantInt’s getZExtValue function
is called. If I comment out this part, everything goes just fine.


uint64_t val = or_const_op->getZExtValue();


Could you please suggest what the cause of this problem might be?


Thanks,

Anahit.


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You need to link libLLVMSupport.a with your program.

-Krzysztof

On 9/12/2017 12:26 PM, Hayrapetyan, Anahit via llvm-dev
wrote:
> Hi,
> 
> 
> I’m getting link error when compiling an executable where llvm::APIInt 
> is used.
> 
> Following is the error:
> 
> 
> /usr/local/include/llvm/ADT/APInt.h:1372: undefined reference to 
> `llvm::APInt::countLeadingZerosSlowCase() const'
> 
> The source file is a simple program, where ConstantInt’s getZExtValue 
> function is called. If I comment out this part, everything goes just fine.
> 
> 
> uint64_t val = or_const_op->getZExtValue();
> 
> 
> Could you please suggest what the cause of this problem might be?
> 
> 
> Thanks,
> 
> Anahit.
> 
> 
> 
> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> 
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