[Llvm-bgq-discuss] Hitting assertion during compilation

[Dan Schatzberg]

Hi Hal,

Thanks for the quick response. I dropped the relevant files in ~dschatz/forhal
Let me know if I got the permissions right and you can access the
stuff in there.

I did a little more investigating and I noticed that indeed the same
source file builds with the previous compiler release. Let me know if
there is anything else I can do to help.
---
Dan Schatzberg


On Tue, Aug 27, 2013 at 4:32 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> ----- Original Message -----
>> Dan,
>>
>> Can you please point me to the source files? (normally, when hitting
>> a crash like this, the compiler produces a preprocessed source file
>> and a build script, do you have those?)
>
> And yes, I just updated the install today.
>
>  -Hal
>
>>
>> Thanks,
>> Hal
>>
>> ----- Original Message -----
>> > Hi,
>> >
>> > I've been using the clang port to blue gene/q for its c++11
>> > features.
>> > While working on my software today I started to hit an assertion
>> > during compilation:
>> >
>> > clang:
>> > /gpfs/vesta-home/hfinkel/src/llvm-trunk/lib/CodeGen/LiveVariables.cpp:133:
>> > void llvm::LiveVariables::HandleVirtRegUse(unsigned int,
>> > llvm::MachineBasicBlock*, llvm::MachineInstr*): Assertion
>> > `MRI->getVRegDef(reg) && "Register use before def!"' failed.
>> >
>> > It happens on a number of source files which I believe I was able
>> > to
>> > compile just fine earlier today. I get a back trace and other
>> > information which I can upload to the mailing list if its useful.
>> >
>> > Did anything change with the installed version of clang today?
>> > Please
>> > let me know how I can help.
>> >
>> > ---
>> > Dan Schatzberg
>> > _______________________________________________
>> > llvm-bgq-discuss mailing list
>> > llvm-bgq-discuss at lists.alcf.anl.gov
>> > https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
>> >
>>
>> --
>> Hal Finkel
>> Assistant Computational Scientist
>> Leadership Computing Facility
>> Argonne National Laboratory
>> _______________________________________________
>> llvm-bgq-discuss mailing list
>> llvm-bgq-discuss at lists.alcf.anl.gov
>> https://lists.alcf.anl.gov/mailman/listinfo/llvm-bgq-discuss
>>
>
> --
> Hal Finkel
> Assistant Computational Scientist
> Leadership Computing Facility
> Argonne National Laboratory