[llvm-dev] JIT tests on AArch64 (original) (raw)
Lang Hames via llvm-dev llvm-dev at lists.llvm.org
Mon Sep 24 13:26:08 PDT 2018
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Ok.
I am not aware of any specific issues with gcc 6.1.0, but for what it's worth ORC code is heavy on lambdas, std::function, and promises/futures compared to the rest of LLVM. In the past it has ICE'd a few GCC versions (workarounds have been made in tree for this) and shown up bugs in MSVC's standard library implementation. Bug reports for those features are the first place I look now when I see a failing builder running an older GCC fail while the rest of the builders are green.
Cheers, Lang.
On Sat, Sep 22, 2018 at 4:07 PM David Greene <dag at cray.com> wrote:
Other general LLVM tests fail with 8.2.0.
Don't spend too much time chasing this down. I just wanted to see if anyone is aware of issues with gcc 6.1.0. Sounds like not. I will keep investigating on our end. It may be something with our environment is strange. If/when I figure something out I'll report it. -David
From: Lang Hames <lhames at gmail.com> Sent: Friday, September 21, 2018 5:03:39 PM To: David Greene Cc: LLVM Developers Mailing List Subject: Re: [llvm-dev] JIT tests on AArch64 Hi David, I don't have access to a gcc 6.1.0 / aarch64 setup, but I've tried the tests locally and they're passing asan/ubsan/tsan clean, and there is no obvious uninitialized memory use in the test case (though who knows where it might be inlined from in a release build). When you say other tests broke with 8.2.0, do you mean other ORC tests specifically, or just other LLVM tests? Cheers, Lang. On Tue, Sep 18, 2018 at 8:07 AM David Greene <dag at cray.com<mailto:_ _dag at cray.com>> wrote: "David A. Greene via llvm-dev" <llvm-dev at lists.llvm.org<mailto:_ _llvm-dev at lists.llvm.org>> writes: > Lang Hames via llvm-dev <llvm-dev at lists.llvm.org<mailto:_ _llvm-dev at lists.llvm.org>> writes: > >> I am afraid nothing leaps to mind. Once you have a chance to look at >> them again please let me know -- I'd be happy to look at backtraces / >> failures. > > Huh. Now the problem has disappeared. A colleague updated to ToT and > now I'm not seeing the failures, even with gcc 6.1.0 in Release mode. User error. I was building on the wrong branch! I am still seeing these errors with gcc 6.1.0 in Release mode. Is there anything else useful I can provide to help track this down? When I tried gcc 8.2.0 these tests passed but some others broke. :( -David -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180924/6ac6b202/attachment.html>
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