[LLVMdev] CloneFunctionInto() Error

[Rasha Omar]

Does cloning copies the function with its address or it constructs a new
address to the new function? Is this real copying for the CFG or just
opaque one to do some work?
If it's not real copying, please I need a method that can help me in
copying the function in another with new pointer to another address.
Please  I need answer urgent
Thanks


On 29 May 2013 10:14, Rasha Omar <rasha.sala7 at gmail.com> wrote:

> Dear All,
>
> I need your help urgently
> I have to copy the CFG of each function using CloneFunction or
> CloneFunctionInto.
> After I made the copy function. Print the basic blocks then get this error
> :
>
> While deleting: i32 %
> Use still stuck around after Def is destroyed:  %mul2_ = mul nsw i32 %6, 3
> Use still stuck around after Def is destroyed:  store i32 3, i32* %x_,
> align 4
> opt: Value.cpp:75: virtual llvm::Value::~Value(): Assertion `use_empty()
> && "Uses remain when a value is destroyed!"' failed.
> 0  opt             0x0000000000fc7fe2
> 1  opt             0x0000000000fc8473
> 2  libpthread.so.0 0x00007f0396f43cb0
> 3  libc.so.6       0x00007f0396195425 gsignal + 53
> 4  libc.so.6       0x00007f0396198b8b abort + 379
> 5  libc.so.6       0x00007f039618e0ee
> 6  libc.so.6       0x00007f039618e192
> 7  opt             0x0000000000f7cd7d
> 8  opt             0x0000000000ee3c52
> 9  opt             0x0000000000f5bddf
> llvm::LLVMContextImpl::~LLVMContextImpl() + 1999
> 10 opt             0x0000000000f5ad1c
> 11 opt             0x0000000000fb9d69 llvm::llvm_shutdown() + 41
> 12 opt             0x00000000005285b3 main + 7251
> 13 libc.so.6       0x00007f039618076d __libc_start_main + 237
> 14 opt             0x0000000000521f91
> Stack dump:
> 0.    Program arguments: opt -load ../../../Release+Asserts/lib/Blocks.so
> -blocks
> Aborted (core dumped)
>
>
>
> ***The code is
>
>
>  > std::vector<Type*> ArgTypes;
>
>  > ValueToValueMapTy VMap;
>
>  >FunctionType *FTy =
> FunctionType::get(F.getFunctionType()->getReturnType(),
>                         ArgTypes, F.getFunctionType()->isVarArg());
>
>  >Function *NewF = Function::Create(FTy, F.getLinkage(), F.getName());
>
>  > SmallVector<ReturnInst*, 8> Returns;
>
>   >CloneFunctionInto(NewF, (Function*) &F, VMap, false, Returns, "_", 0,
> 0);
>
>
> Thanks in advance
>
> --
> *Rasha Salah Omar
> Msc Student at E-JUST
> Demonestrator  at Faculty of Computers and Informatics
> Benha University
> *
>



-- 
*Rasha Salah Omar
Msc Student at E-JUST
Demonestrator  at Faculty of Computers and Informatics
Benha University
*
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