[swift-dev] Differences between Xcode official toolchains and tagged releases from repository

[Xavier Jurado]

I can confirm that both issues were solved/bypassed by rebuilding the
toolchain with assertions disabled. The provided examples compiled
successfully, so we finally got the same result as the official 2.2
toolchain.

Thank you again for the input!

2016-10-06 9:26 GMT+02:00 Xavier Jurado <xavier.jurado at gmail.com>:

> Thanks for the hint! When I built the toolchain I modified the
> "mixin_lightweight_assertions" preset locally to use "no-assertions" and
> "swift-assertions", thinking it was the appropriate combination based on a
> FIXME comment. I will try building it again with only "no-assertions" and
> report back.
>
> 2016-10-05 18:28 GMT+02:00 Jordan Rose <jordan_rose at apple.com>:
>
>> Aha, so the second bug is because home-built toolchains have assertions
>> on by default and Xcode GM toolchains generally have them off. (Not a
>> promise, but true of the last few Xcodes.) Of course, if you hit an
>> assertion failure, there’s no telling what the no-asserts build is actually
>> doing.
>>
>> I’m not so sure the first bug falls into the same category yet, but it
>> might as well.
>>
>> Jordan
>>
>>
>> > On Oct 4, 2016, at 14:05, Jordan Rose via swift-dev <
>> swift-dev at swift.org> wrote:
>> >
>> > Thanks, Xavi. Hopefully these aren't blocking you in Xcode 8 either (in
>> either Swift 2.3 or Swift 3).
>> >
>> >> On Oct 4, 2016, at 8:03, Xavier Jurado via swift-dev <
>> swift-dev at swift.org> wrote:
>> >>
>> >> Hello Jordan,
>> >>
>> >> We have filled two bugs against bugs.swift.org to document two crashes
>> >> that are only reproducible with our toolchain built from the
>> >> swift-2.2.1-RELEASE tag, but that appear fixed in the official
>> >> toolchain bundled with Xcode 7.3.1 (7D1014).
>> >>
>> >> Crashers:
>> >>
>> >> https://bugs.swift.org/browse/SR-2844
>> >> https://bugs.swift.org/browse/SR-2845
>> >>
>> >> Since using the official toolchain somehow fixes the issues we realize
>> >> they are far from critical, but we have reported them in hope of
>> >> finding the discrepancies between the official toolchain and the the
>> >> tagged releases.
>> >>
>> >> Thanks,
>> >> Xavi
>> >> _______________________________________________
>> >> swift-dev mailing list
>> >> swift-dev at swift.org
>> >> https://lists.swift.org/mailman/listinfo/swift-dev
>> >
>> > _______________________________________________
>> > swift-dev mailing list
>> > swift-dev at swift.org
>> > https://lists.swift.org/mailman/listinfo/swift-dev
>>
>>
>
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