[llvm-dev] JIT tests on AArch64

[David Greene via llvm-dev]

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