[LLVMdev] All the passes (even the LLVMHello.so) fail at doFinalization()

[Tianyin Xu]

I just follow the tutorial: http://llvm.org/docs/WritingAnLLVMPass.html

Actually it's not only my module, I used the LLVMHello.so (a sample module
in the source tree) and get the crash (I didn't do anything :-P).

~t


On Tue, Aug 12, 2014 at 12:57 AM, Eric Christopher <echristo at gmail.com>
wrote:

> Weird, it definitely shouldn't be crashing. How did you create your module?
>
> -eric
>
> On Tue, Aug 12, 2014 at 12:56 AM, Tianyin Xu <tixu at cs.ucsd.edu> wrote:
> > no... I guess verifier runs by default and it points to the
> > doFinailization() function :-(
> >
> > ~t
> >
> >
> > On Tue, Aug 12, 2014 at 12:53 AM, Eric Christopher <echristo at gmail.com>
> > wrote:
> >>
> >> No idea, I was suggesting to just run the verifier to see if it would
> >> pinpoint what's broken about the module.
> >>
> >> -eric
> >>
> >> On Tue, Aug 12, 2014 at 12:52 AM, Tianyin Xu <tixu at cs.ucsd.edu> wrote:
> >> > Oh, you mean opt -disable-verify?
> >> >
> >> > Yes, it does eliminate the crashing...
> >> >
> >> > Do you know what's the problem, Eric?
> >> >
> >> > Thanks a lot!
> >> > ~t
> >> >
> >> >
> >> > On Tue, Aug 12, 2014 at 12:42 AM, Eric Christopher <
> echristo at gmail.com>
> >> > wrote:
> >> >>
> >> >> Tried opt -verify on your module?
> >> >>
> >> >> -eric
> >> >>
> >> >> On Tue, Aug 12, 2014 at 12:28 AM, Tianyin Xu <tixu at cs.ucsd.edu>
> wrote:
> >> >> > Hi all,
> >> >> >
> >> >> > I find all my passes are all broken with LLVM 3.4. Then I tried out
> >> >> > the
> >> >> > LLVMHello.so specified in the LLVM doc,
> >> >> > http://llvm.org/docs/WritingAnLLVMPass.html
> >> >> > and it also crashes.
> >> >> >
> >> >> > It seems all the functions in the pass do work, but LLVM crashes in
> >> >> > the
> >> >> > doFinalization() step.
> >> >> >
> >> >> > Does anyone know this problem?
> >> >> >
> >> >> > Thanks!
> >> >> > Tianyin
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> -----------------------------------------------------------------------------------------------------------------
> >> >> >
> >> >> > #opt -load ../../../Debug+Asserts/lib/LLVMHello.so -hello
> >> >> > -time-passes <
> >> >> > bcfiles/hello.bc
> >> >> > ...
> >> >> > (PRINT ALL THE FUNCTIONS, EVERYTHING IS FINE.)
> >> >> > ...
> >> >> > wrong initalizer for intrinsic global variable
> >> >> > [0 x i8*] zeroinitializer
> >> >> > Broken module found, compilation aborted!
> >> >> > 0  opt             0x00000000019ac447
> >> >> > llvm::sys::PrintStackTrace(_IO_FILE*)
> >> >> > + 38
> >> >> > 1  opt             0x00000000019ac6ce
> >> >> > 2  opt             0x00000000019ac112
> >> >> > 3  libpthread.so.0 0x00007feee0c77cb0
> >> >> > 4  libc.so.6       0x00007feedfca2425 gsignal + 53
> >> >> > 5  libc.so.6       0x00007feedfca5b8b abort + 379
> >> >> > 6  opt             0x0000000001953173
> >> >> > 7  opt             0x0000000001953097
> >> >> > 8  opt             0x0000000001928676
> >> >> > llvm::FPPassManager::doFinalization(llvm::Module&) + 88
> >> >> > 9  opt             0x0000000001928a8a
> >> >> > 10 opt             0x0000000001928ef0
> >> >> > llvm::legacy::PassManagerImpl::run(llvm::Module&) + 254
> >> >> > 11 opt             0x0000000001929103
> >> >> > llvm::legacy::PassManager::run(llvm::Module&) + 39
> >> >> > 12 opt             0x00000000008f88cd main + 5778
> >> >> > 13 libc.so.6       0x00007feedfc8d76d __libc_start_main + 237
> >> >> > 14 opt             0x00000000008ea589
> >> >> > Stack dump:
> >> >> > 0. Program arguments: opt -load
> >> >> > ../../../Debug+Asserts/lib/LLVMHello.so
> >> >> > -hello -time-passes
> >> >> > Aborted (core dumped)
> >> >> >
> >> >> > --
> >> >> > Tianyin XU,
> >> >> > http://cseweb.ucsd.edu/~tixu/
> >> >> >
> >> >> > _______________________________________________
> >> >> > LLVM Developers mailing list
> >> >> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >> >> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >> >> >
> >> >
> >> >
> >> >
> >> >
> >> > --
> >> > Tianyin XU,
> >> > http://cseweb.ucsd.edu/~tixu/
> >
> >
> >
> >
> > --
> > Tianyin XU,
> > http://cseweb.ucsd.edu/~tixu/
>



-- 
Tianyin XU,
http://cseweb.ucsd.edu/~tixu/
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