[LLVMdev] 2.1 Pre-Release Available (testers needed)

[Evan Cheng]

Is this the same issue as PR1686? If so, please add to it. What kind  
of host machine are you using?

Thanks,

Evan

On Sep 19, 2007, at 12:45 AM, Emil Mikulic wrote:

> On Wed, Sep 19, 2007 at 05:24:12PM +1000, Emil Mikulic wrote:
>> http://goanna.cs.rmit.edu.au/~emil/llvm2.1-check-debug.txt
>
> Here's an ARM test that cores:
>
> $ llvm-as < /home/emil/ll/llvm-2.1/test/CodeGen/ARM/2007-01-19- 
> InfiniteLoop.ll | llc -march=arm -mattr=+v6,+vfp2
> Segmentation fault (core dumped)
>
> $ gdb `which llc` llc.core
> [...]
> (gdb) where
> #0  0x0853d606 in llvm::ilist_traits<llvm::MachineInstr>::getNext (
>     N=0x5a5a5a5a) at MachineBasicBlock.h:37
> #1  0x0854d807 in  
> llvm::ilist_iterator<llvm::MachineInstr>::operator-- (
>     this=0xbfbfe880) at ilist:137
> #2  0x085502c5 in  
> std::__advance<llvm::ilist_iterator<llvm::MachineInstr>, int>
>     (__i=@0xbfbfe880, __n=0) at stl_iterator_base_funcs.h:145
> #3  0x08550311 in  
> std::advance<llvm::ilist_iterator<llvm::MachineInstr>, int> (
>     __i=@0xbfbfe880, __n=-1) at stl_iterator_base_funcs.h:177
> #4  0x08550339 in  
> llvm::prior<llvm::ilist_iterator<llvm::MachineInstr> > (it=
>       {<bidirectional_iterator<llvm::MachineInstr,int>> =  
> {<std::iterator<std::bidirectional_iterator_tag,llvm::MachineInstr,int 
> ,llvm::MachineInstr*,llvm::MachineInstr&>> = {<No data fields>},  
> <No data fields>}, NodePtr = 0x5a5a5a5a})
>     at STLExtras.h:154
> #5  0x085c08c8 in LoadStoreMultipleOpti (this=0x29005ec0,  
> MBB=@0x2904c400)
>     at /home/emil/ll/llvm-2.1/lib/Target/ARM/ 
> ARMLoadStoreOptimizer.cpp:683
> #6  0x085c0a8e in runOnMachineFunction (this=0x29005ec0,  
> Fn=@0x290282c0)
>     at /home/emil/ll/llvm-2.1/lib/Target/ARM/ 
> ARMLoadStoreOptimizer.cpp:744
> #7  0x0853d4b8 in llvm::MachineFunctionPass::runOnFunction  
> (this=0x29005ec0,
>     F=@0x29007420) at MachineFunctionPass.h:41
> #8  0x08b48a5d in llvm::FPPassManager::runOnFunction (this=0x29037060,
>     F=@0x29007420) at /home/emil/ll/llvm-2.1/lib/VMCore/ 
> PassManager.cpp:1168
> #9  0x08b48cc4 in llvm::FunctionPassManagerImpl::run (this=0x2902a040,
>     F=@0x29007420) at /home/emil/ll/llvm-2.1/lib/VMCore/ 
> PassManager.cpp:1126
> #10 0x08b48e48 in llvm::FunctionPassManager::run (this=0xbfbfebcc,
>     F=@0x29007420) at /home/emil/ll/llvm-2.1/lib/VMCore/ 
> PassManager.cpp:1071
> #11 0x0851b0da in main (argc=3, argv=0xbfbfec84)
>     at /home/emil/ll/llvm-2.1/tools/llc/llc.cpp:295
>
> line 37 is:
> 37        static MachineInstr* getNext(MachineInstr* N) { return N- 
> >next; }
>
> (gdb) print N
> $1 = (llvm::MachineInstr *) 0x5a5a5a5a
> (gdb) print *N
> Cannot access memory at address 0x5a5a5a5a
>
> Should I take this (and the other crashes?) off the list and start
> filing bugs or something?
>
> --Emil
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