llvm dev - Jan 2016 - Testing an LLVM pass

Hi all,

I’m currently writing an LLVM function pass and I want to know how can I test
it?

Currently, I try to compile some crypto library and check if the test suite are
working but I don’t think this is very efficient.

Does anyone has a leads?

Greetings,

Johan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 842 bytes
Desc: Message signed with OpenPGP using GPGMail
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20160122/fdab8ab3/attachment.sig>

On Fri, Jan 22, 2016 at 09:55:46AM +0000, Wehrli Johan via llvm-dev
wrote:
> Hi all,
> 
> I’m currently writing an LLVM function pass and I want to know how can I
test it?
> 
> Currently, I try to compile some crypto library and check if the test suite
are working but I don’t think this is very efficient.
> 
> Does anyone has a leads?
Hi there,

what we do here at Quarkslab is a combination of:

- unittesting the pass (through lit)
- fuzzing the passes (through csmith & through various optimization flag
  combination)
- running the test suite of various open source project compiled with
  our pass activated (as you do)

hope it helps,

serge

For testing your pass, you might want to have a look at the tutorial presented
by Serge (and Adrien) at the US dev meeting:
http://www.llvm.org/devmtg/2015-10/slides/GueltonGuinet-BuildingTestingDebuggingASimpleOutOfTreePass.pdf

Cheers,
--
Arnaud
> -----Original Message-----
> From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of
serge
> guelton via llvm-dev
> Sent: 22 January 2016 10:06
> To: Wehrli Johan
> Cc: llvm-dev at lists.llvm.org
> Subject: Re: [llvm-dev] Testing an LLVM pass
> 
> On Fri, Jan 22, 2016 at 09:55:46AM +0000, Wehrli Johan via llvm-dev wrote:
> > Hi all,
> >
> > I’m currently writing an LLVM function pass and I want to know how can
I
> test it?
> >
> > Currently, I try to compile some crypto library and check if the test
suite are
> working but I don’t think this is very efficient.
> >
> > Does anyone has a leads?
> 
> Hi there,
> 
> what we do here at Quarkslab is a combination of:
> 
> - unittesting the pass (through lit)
> - fuzzing the passes (through csmith & through various optimization
flag
>   combination)
> - running the test suite of various open source project compiled with
>   our pass activated (as you do)
> 
> hope it helps,
> 
> serge
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev