[LLVMdev] Script for stressing llc

[Hal Finkel]

----- Original Message -----
> 
> 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,

Ah, but do you have an opinion on that?

> 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.

Sounds good. I'll look at it.

> 
> 
> 
> > 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?).

Sure ;) -- I did not mean to imply that I would commit them that way (although all of these things can be overridden using the command-line arguments). I think that (`pwd`, empty, empty) would make reasonable defaults.

Thanks again,
Hal

> 
> 
> -- 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
> > 
> > _______________________________________________
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> > 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
> 
> 
> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory