[LLVMdev] create two Twine object

[Yuanfang Chen]

This is the error:

0  opt             0x087e59ee
1  opt             0x087e5863
2                  0x00a49400 __kernel_sigreturn + 0
3  opt             0x083bdd0b llvm::PATypeHolder::operator llvm::Type*()
const + 29
4  opt             0x083bddb6 llvm::Value::getType() const + 32
5  opt             0x08725e33 llvm::CallInst::init(llvm::Value*,
llvm::Value* const*, unsigned int) + 313
6  opt             0x083d7c4c void
llvm::CallInst::init<__gnu_cxx::__normal_iterator<llvm::Value**,
std::vector<llvm::Value*, std::allocator<llvm::Value*> > > >(llvm::Value*,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >, llvm::Twine const&,
std::random_access_iterator_tag) + 92
7  opt             0x083d6c46
llvm::CallInst::CallInst<__gnu_cxx::__normal_iterator<llvm::Value**,
std::vector<llvm::Value*, std::allocator<llvm::Value*> > > >(llvm::Value*,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >, llvm::Twine const&, llvm::Instruction*) +
266
8  opt             0x083d5ed3 llvm::CallInst*
llvm::CallInst::Create<__gnu_cxx::__normal_iterator<llvm::Value**,
std::vector<llvm::Value*, std::allocator<llvm::Value*> > > >(llvm::Value*,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >,
__gnu_cxx::__normal_iterator<llvm::Value**, std::vector<llvm::Value*,
std::allocator<llvm::Value*> > >, llvm::Twine const&, llvm::Instruction*) +
103
9  LLVMMpiAware.so 0x0011b842
10 LLVMMpiAware.so 0x0011b22e
11 opt             0x0875ad26
llvm::MPPassManager::runOnModule(llvm::Module&) + 388
12 opt             0x0875b212 llvm::PassManagerImpl::run(llvm::Module&) +
122
13 opt             0x0875b4f7 llvm::PassManager::run(llvm::Module&) + 39
14 opt             0x083b108b main + 3303
15 libc.so.6       0x005e0b56 __libc_start_main + 230
16 opt             0x083a2bd1
Stack dump:
0. Program arguments: opt -load ../../../Debug/lib/LLVMMpiAware.so
-mpiaware
1. Running pass 'MPI Aware Pass' on module '<stdin>'.
Segmentation fault


On Sun, Apr 18, 2010 at 12:55 AM, Yuanfang Chen <tabloid.adroit at gmail.com>wrote:

> I need to generate variables like
>
> status1, status2, status3, ......
> request1, request2, request3, ......
>
> this is my code, other unrelated detail are eliminated.
>
> static int varNum;
> static const char *getVarNum() {
> ++varNum;
> std::stringstream ss;
>  ss << varNum;
> std::string *varname = new std::string(ss.str());
> return varname->c_str();
> }
>
> const char *VarNum = getVarNum();
> Twine *x1 = new Twine(StringRef("status"), VarNum);     //      1
> Twine *x2 = new Twine(StringRef("request"), VarNum);    //     2
>
> Instruction *sstatusInst = new AllocaInst(StatusTy, *x1, entry_inst);  //
>  3
> Instruction *sreqInst = new AllocaInst(ReqTy, *x2, entry_inst);          //
>    4
>
> with only 1&3,  my code works well, I can have status1, status2, status3,
> ......
>
> with 1&2&3&4  exists at the same time,  it compiles without problem, but
> segmentation fault happens.
>
> Instruction *sreqInst = new AllocaInst(ReqTy, "request", entry_inst);    //
>   5
> with 1&2&3&5,  everything work, but that's not what I want.
>
> I really can't figure out what is broken. I create everything new on the
> heap.
> Each alloca inst with its own Twine object on the heap. Could anyone help
> me
> out?  Thanks a lot.
>
> yuanfang
>
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