[llvm] r285517 - [LoopVectorize] Make interleaved-accesses analysis less conservative about

Nuzman, Dorit via llvm-commits llvm-commits at lists.llvm.org
Sun Oct 30 14:14:49 PDT 2016

Thanks so much, Renato!
Attached is the full revised patch.

(Silviu -- would you please take a look and shout if you see something wrong with this fix?).


-----Original Message-----
From: Renato Golin [mailto:renato.golin at linaro.org] 
Sent: Sunday, October 30, 2016 17:20
To: Nuzman, Dorit <dorit.nuzman at intel.com>
Cc: LLVM Commits <llvm-commits at lists.llvm.org>
Subject: Re: [llvm] r285517 - [LoopVectorize] Make interleaved-accesses analysis less conservative about

On 30 October 2016 at 15:13, Nuzman, Dorit <dorit.nuzman at intel.com> wrote:
> My guess is that the problem is with the releaseGroup() which doesn't really remove the group; so the next loop that scans over the LoadGroups encounters a Group that had already been released (and tries to release it again).
> I have a tentative fix (basically instead of having two separate scans over the LoadGroups, do all the LoadGroup checks inside a single scan over the Groups; see patch below), but I did not have time to test it yet (also I wasn't able to reproduce the failure on my platform yet...).

If you send me the whole patch+fix, I can build it locally to see if it fixes the problem.

Intel Israel (74) Limited

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