[LLVMdev] How to avoid memory leaks

[Gabi]

Hi
I get huge memory leaks using LLVM IRBuilder (trunk version)

Basically I recreate a function over and over again, and pretty sure
that my code doesn't cause the leak
while(true)
{
 Function *fn = module->getFunction(name);
    if (fn)
       fn->eraseFromParent();

    fn =  cast<Function>(module->getOrInsertFunction(name, fnType));
    fillFunction(fn); //Fill function with some blocks and instructions..
}

Is there any documentation guideline on how to manage memory with
LLVM? . I am kind of lost here. I tried anything I could but it seems
the leaks won't go away

Valgrind gives me lots of ..

110,560 bytes in 1,382 blocks are possibly lost in loss record 176 of 181
==17474==    at 0x4C2596C: operator new(unsigned long) (vg_replace_malloc.c:220)
==17474==    by 0x90A922: llvm::User::operator new(unsigned long,
unsigned int) (in /home/gabi/vgen/Debug/vgen)
==17474==    by 0x88A5B6: llvm::ConstantFP::get(llvm::LLVMContext&,
llvm::APFloat const&) (in /home/gabi/vgen/Debug/vgen)
==17474==    by 0x925E17: llvm::ConstantFoldBinaryInstruction(unsigned
int, llvm::Constant*, llvm::Constant*) (in /home/gabi/vgen/Debug/vgen)
==17474==    by 0x889587: llvm::ConstantExpr::getTy(llvm::Type const*,
unsigned int, llvm::Constant*, llvm::Constant*, unsigned int) (in
/home/gabi/vgen/Debug/vgen)
==17474==    by 0x423030:
llvm::ConstantFolder::CreateFSub(llvm::Constant*, llvm::Constant*)
const (ConstantFolder.h:58)
==17474==    by 0x423F7E: llvm::IRBuilder<true, llvm::ConstantFolder,
llvm::IRBuilderDefaultInserter<true> >::CreateFSub(llvm::Value*,
llvm::Value*, llvm::Twine const&)

and also...
==17474== 2,880 bytes in 40 blocks are possibly lost in loss record 155 of 181
==17474==    at 0x4C2596C: operator new(unsigned long) (vg_replace_malloc.c:220)
==17474==    by 0x90A922: llvm::User::operator new(unsigned long,
unsigned int) (in /home/gabi/vgen/Debug/vgen)
==17474==    by 0x88423B: llvm::ConstantInt::get(llvm::LLVMContext&,
llvm::APInt const&) (in /home/gabi/vgen/Debug/vgen)
==17474==    by 0x8843B4: llvm::ConstantInt::get(llvm::IntegerType
const*, unsigned long, bool) (in /home/gabi/vgen/Debug/vgen)

-- 
Regards,
Gabi

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