[polly] r230624 - Allow non-affine control flow by default

[Johannes Doerfert]

On 02/26, Tobias Grosser wrote:
> On 26.02.2015 16:12, Johannes Doerfert wrote:
> >On 02/26, Tobias Grosser wrote:
> >>On 26.02.2015 12:09, Johannes Doerfert wrote:
> >>>Author: jdoerfert
> >>>Date: Thu Feb 26 05:09:24 2015
> >>>New Revision: 230624
> >>>
> >>>URL: http://llvm.org/viewvc/llvm-project?rev=230624&view=rev
> >>>Log:
> >>>Allow non-affine control flow by default
> >>>
> >>>   With the patches r230325, r230329 and r230340 we can handle non-affine
> >>>   control flow in (loop-free) subregions. As all LLVM test-suite tests pass and
> >>>   we get ~20% more non-trivial SCoPs, we activate it now by default.
> >>
> >>Our buildbots report three compile-time failures:
> >>
> >>http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-fast/builds/3987
> >>
> >>Did you verify the correctness on LNT with a non-asserts build?
> >My HEAD is at:
> >   commit 63329c0fb9dc14633887b121b20bc7a17dc492b7
> >   Author: Johannes Doerfert <doerfert at cs.uni-saarland.de>
> >   Date:   Thu Feb 26 11:09:24 2015 +0000
> >
> >       Allow non-affine control flow by default
> >
> >I build a Debug and a Release version with cmake/ninja and run lnt on
> >the 3 failing tests:
> >   FAIL: MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg.compile_time
> >   FAIL: MultiSource/Benchmarks/MiBench/consumer-jpeg/consumer-jpeg.compile_time
> >   FAIL: MultiSource/Benchmarks/MiBench/consumer-lame/consumer-lame.compile_time
> >
> >However, I pass them with both, the Release as well as the Debug build.
> >
> >My lnt command line:
> >lnt  runtest --verbose  nt --sandbox nt  --cc `which clang` --cxx `which
> >clang++` --without-llvm --test-suite ~/repos/llvm-test-suite/
> >--no-machdep-info pollyperf-O3-polly --multisample=1 --cflag=-O3
> >--mllvm=-polly  -j 6  --only-test=...
> >
> >Do you have any idea why I do not get the same failures as the bot?
> 
> Not really, do you use the latest LLVM/clang versions?
I just pulled LLVM/clang and rerun the test with the up-to-date Release
build, ... no change, I still PASS them ...

Could you get me the output of those tests on the buildbot by any
chance?

-- 

Johannes Doerfert
Researcher / PhD Student

Compiler Design Lab (Prof. Hack)
Saarland University, Computer Science
Building E1.3, Room 4.31

Tel. +49 (0)681 302-57521 : doerfert at cs.uni-saarland.de
Fax. +49 (0)681 302-3065  : http://www.cdl.uni-saarland.de/people/doerfert
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