[PATCH] D62939: Fix a bug w/inbounds invalidation in LFTR (was: Strengthen LFTR's ability to replace IVs)

Florian Hahn via llvm-commits llvm-commits at lists.llvm.org
Fri Jun 14 09:56:37 PDT 2019


This is also causing crashes during the stage2 green dragon builds:

http://green.lab.llvm.org/green/job/clang-stage2-Rthinlto/18208/consoleFull <http://green.lab.llvm.org/green/job/clang-stage2-Rthinlto/18208/consoleFull>

I’ve attached a reproducer, which should crash with opt -O2. I am currently running bug point to get a reduced reproducer.

It would be great if you could have a look. I am planning on reverting the change, to get the builders back to green. (and r363293, r363292 as they seem to depend on this change).

Cheers
Florian



> On Jun 14, 2019, at 09:25, Martin Storsjö via Phabricator via llvm-commits <llvm-commits at lists.llvm.org <mailto:llvm-commits at lists.llvm.org>> wrote:
> 
> mstorsjo added a comment.
> 
> This caused a regression, where compilation now crashes. See https://bugs.llvm.org/show_bug.cgi?id=42279 <https://bugs.llvm.org/show_bug.cgi?id=42279> for details.
> 
> 
> Repository:
>  rL LLVM
> 
> CHANGES SINCE LAST ACTION
>  https://reviews.llvm.org/D62939/new/ <https://reviews.llvm.org/D62939/new/>
> 
> https://reviews.llvm.org/D62939 <https://reviews.llvm.org/D62939>
> 
> 
> 
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> llvm-commits at lists.llvm.org
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