[LLVMdev] poolalloc crashed at PA::Heuristic::getLocalPoolNodes

[John Criswell]

On 3/12/14 2:21 PM, Paul Vario wrote:
> Hi Fellows,
>
>     I tried to build and execute the poolalloc transformation on a 
> simple C program, but I got the following error. My poolalloc is 
> git-cloned from https://github.com/llvm-mirror/poolalloc (a LLVM 3.3 
> compatible repo). Any thoughts on how to fix it?

First, I'm not sure if we ever completed the port of poolalloc to LLVM 
3.3.  You might want to try the release_32 branch of poolalloc and see 
if that works better.

Second, the poolalloc transform has probably experienced some bit-rot 
over the past few years as we don't actively use it in the SAFECode 
compiler by default, so I'm not sure how robust it is anymore.

You might want to take a look at Daniel Huang's paper (if you have 
online access to Springer papers); he might have used the poolalloc code 
for his project:

http://link.springer.com/chapter/10.1007/978-3-319-03545-1_14

John Criswell

>
>
> PV at PV-h8-1280t:~/LLVM/llvm-3.3.src/projects/poolalloc$ opt -S -load 
> ./Debug+Asserts/lib/LLVMDataStructure.so -load 
> ./Debug+Asserts/lib/poolalloc.so -poolalloc < test.ll
> Pool allocating 0 global nodes!
> 0  opt             0x00000000017381de 
> llvm::sys::PrintStackTrace(_IO_FILE*) + 46
> 1  opt             0x000000000173849b
> 2  opt             0x000000000173870e
> 3  libpthread.so.0 0x00007f6f5d570cb0
> 4  poolalloc.so    0x00007f6f5bf73cbf 
> llvm::PA::Heuristic::getLocalPoolNodes(llvm::Function const&, 
> std::vector<llvm::DSNode const*, std::allocator<llvm::DSNode const*> 
> >&) + 31
> 5  poolalloc.so    0x00007f6f5bfb8279 
> llvm::PoolAllocate::ProcessFunctionBody(llvm::Function&, 
> llvm::Function&) + 633
> 6  poolalloc.so    0x00007f6f5bfb5b80 
> llvm::PoolAllocate::runOnModule(llvm::Module&) + 1312
> 7  opt             0x00000000016ad00a 
> llvm::MPPassManager::runOnModule(llvm::Module&) + 634
> 8  opt             0x00000000016ad7be 
> llvm::PassManagerImpl::run(llvm::Module&) + 302
> 9  opt             0x00000000016ada11 
> llvm::PassManager::run(llvm::Module&) + 33
> 10 opt             0x000000000063e5c1 main + 6609
> 11 libc.so.6       0x00007f6f5c5a076d __libc_start_main + 237
> 12 opt             0x000000000062fb75
> Stack dump:
> 0.    Program arguments: opt -S -load 
> ./Debug+Asserts/lib/LLVMDataStructure.so -load 
> ./Debug+Asserts/lib/poolalloc.so -poolalloc
> 1.    Running pass 'Pool allocate disjoint data structures' on module 
> '<stdin>'.
> drive_all.sh: line 3:  5947 Segmentation fault      (core dumped) opt 
> -S -load ./Debug+Asserts/lib/LLVMDataStructure.so -load 
> ./Debug+Asserts/lib/poolalloc.so -poolalloc < test.ll
>
>
>
> P.S. The input C program is the program listed in Figure 1 of Chris 
> Lattner's PLDI 2005 paper.
>
>
> Best,
> Paul
>
>
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