llvm dev - Jul 2009 - [LLVMdev] ARM backend failures from (gcc) c torture suite

I wrote a few scripts to run llvm/arm against the gnu c torture test suite
which consists of  over 900 smallish tests.

There were quite a few failures with llvm/arm which I hereby want to
report (see attached
tarball for the actual failing testsc).

Most of the failures are related to vararg/stdarg.
I think I saw a bug files for this but cannot find it anymore.
Is somebody on this?

Finally, I would like to check in the scripts mentioned above.
What would be a good place for them? "utils/" ?
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I don't have a target in front of me to run these tests at the moment,
but walking manually through va-arg-1.c, it's pretty clear that
there's some disconnect between the register spilling that happens in
LowerFORMAL_ARGUMENTS and what happens in LowerVASTART in
ARMISelLowering.cpp.

deep

On Thu, Jun 11, 2009 at 8:45 AM, robert muth<robert at muth.org>
wrote:
> I wrote a few scripts to run llvm/arm against the gnu c torture test suite
> which consists of  over 900 smallish tests.
>
> There were quite a few failures with llvm/arm which I hereby want to
> report (see attached
> tarball for the actual failing testsc).
>
> Most of the failures are related to vararg/stdarg.
> I think I saw a bug files for this but cannot find it anymore.
> Is somebody on this?
>
> Finally, I would like to check in the scripts mentioned above.
> What would be a good place for them? "utils/" ?
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

I have run the torture test again svn head rev 76522 (2009/07/20) there are
now
2 compilation and 23 runtime failure. A tarball with reproducers is
attached.
Most problems are still vargs related.

Robert

On Fri, Jun 12, 2009 at 11:09 AM, Sandeep Patel <deeppatel1987 at
gmail.com>wrote:
> I don't have a target in front of me to run these tests at the moment,
> but walking manually through va-arg-1.c, it's pretty clear that
> there's some disconnect between the register spilling that happens in
> LowerFORMAL_ARGUMENTS and what happens in LowerVASTART in
> ARMISelLowering.cpp.
>
> deep
>
> On Thu, Jun 11, 2009 at 8:45 AM, robert muth<robert at muth.org>
wrote:
> > I wrote a few scripts to run llvm/arm against the gnu c torture test
> suite
> > which consists of  over 900 smallish tests.
> >
> > There were quite a few failures with llvm/arm which I hereby want to
> > report (see attached
> > tarball for the actual failing testsc).
> >
> > Most of the failures are related to vararg/stdarg.
> > I think I saw a bug files for this but cannot find it anymore.
> > Is somebody on this?
> >
> > Finally, I would like to check in the scripts mentioned above.
> > What would be a good place for them? "utils/" ?
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
> >
>
> _______________________________________________
> 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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