[LLVMdev] Crash/Assert on -loop-reduce

[Ryan Taylor]

Unfortunately, I cannot provide the exact code, but I will attempt to look
for the reason and post a test case.


On Tue, Feb 7, 2012 at 6:04 PM, Eli Friedman <eli.friedman at gmail.com> wrote:

> On Tue, Feb 7, 2012 at 5:52 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:
> > opt:
> /home/ryan/llvm/llvm_core/llvm-3.0/include/llvm/Support/Casting.h:194:
> > typename cast_retty<Instruction, User *>::ret_type llvm::cast(llvm::User
> > *const &): Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible
> > type!"' failed.
> > 0  opt             0x000000000085cfef
> > 1  opt             0x000000000085d509
> > 2  libpthread.so.0 0x00007fdb30054c60
> > 3  libc.so.6       0x00007fdb2f33fd05 gsignal + 53
> > 4  libc.so.6       0x00007fdb2f343ab6 abort + 390
> > 5  libc.so.6       0x00007fdb2f3387c5 __assert_fail + 245
> > 6  opt             0x000000000051a9a6
> > 7  opt             0x000000000051979e
> > 8  opt             0x0000000000503863
> > 9  opt             0x000000000050102e
> > 10 opt             0x0000000000689184
> > llvm::LPPassManager::runOnFunction(llvm::Function&) + 836
> > 11 opt             0x0000000000801f9f
> > llvm::FPPassManager::runOnFunction(llvm::Function&) + 351
> > 12 opt             0x000000000080221b
> > llvm::FPPassManager::runOnModule(llvm::Module&) + 59
> > 13 opt             0x000000000080236a
> > llvm::MPPassManager::runOnModule(llvm::Module&) + 282
> > 14 opt             0x0000000000802941
> > llvm::PassManagerImpl::run(llvm::Module&) + 337
> > 15 opt             0x0000000000802e4a
> llvm::PassManager::run(llvm::Module&)
> > + 10
> > 16 opt             0x00000000004919d7 main + 5511
> > 17 libc.so.6       0x00007fdb2f32aeff __libc_start_main + 255
> > 18 opt             0x000000000048bc95
> > Stack dump:
> >
> > If I don't use the opt -loop-reduce then this code runs fine. I'm not
> really
> > sure the issue.
>
> It's hard to say what is happening without a testcase.
>
> -Eli
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120208/c895c894/attachment.html>