[LLVMdev] Script for stressing llc

[Sean Silva]

The only precedent I have seen in recent years for shell scripts is the
(absolutely insanely amazingly well-written) utils/TableGen/tdtags.

Ignoring the issue of whether this kind of tool belongs in the repo, IMO it
would be nice if you used tdtags as a "template" for this script; there's a
large amount of shell-fu (not clever "tricks", but actual "how to make a
robust, readable, portable shell script"-fu) in there that you will want to
imitate.

> LLVMHOME=/home/projects/llvm/upstream/llvm-trunk-build/Release+Asserts/bin
> SOPTS="-generate-ppc-fp128"
> TOPTS="-mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7"

Hardcoding these seems a bit "wrong". Are there any reasonable defaults we
can use? ((pwd, empty, host triple) for the three options, respectively,
might be reasonable?).

-- Sean Silva



On Wed, Jul 10, 2013 at 7:14 PM, Hal Finkel <hfinkel at anl.gov> wrote:

> A few people have requested features; I've implemented them in this
> updated version (attached). Do you think this is worth putting in the repo
> somewhere?
>
>  -Hal
>
> ----- Original Message -----
> > Hi,
> >
> > I wrote a small script in order to stress test llc using test cases
> > generated by llvm-stress. When it finds a case where llc seems to
> > have crashed, it greps the output for Assertion, LLVM ERROR, etc.,
> > removes things that look like hex numbers and ID numbers, and then
> > checksums the resulting text. In this way, it can automatically
> > categorize different bugs into different subdirectories.
> >
> > I found this useful, and maybe you will too :)
> >
> >  -Hal
> >
> > --
> > Hal Finkel
> > Assistant Computational Scientist
> > Leadership Computing Facility
> > Argonne National Laboratory
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
>
> --
> Hal Finkel
> Assistant Computational Scientist
> Leadership Computing Facility
> Argonne National Laboratory
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>
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