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
*
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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 * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130529/754d404e/attachment.html>
After cloning you need to replace all the uses of original one with the cloned function.Probably you can use "replaceAllUsesWith( )" function to do this. Regards,Shahid --- On Wed, 5/29/13, Rasha Omar <rasha.sala7 at gmail.com> wrote: From: Rasha Omar <rasha.sala7 at gmail.com> Subject: Re: [LLVMdev] CloneFunctionInto() Error To: LLVMdev at cs.uiuc.edu Date: Wednesday, May 29, 2013, 5:23 AM 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 -----Inline Attachment Follows----- _______________________________________________ LLVM Developers mailing list LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130529/cb021a31/attachment.html>