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Tracking LLVM #46176 #5039

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alexreinking opened this issue Jun 16, 2020 · 6 comments
Closed

Tracking LLVM #46176 #5039

alexreinking opened this issue Jun 16, 2020 · 6 comments
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@alexreinking
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build Issues related to building Halide and with CI
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Build system improvements
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@alexreinking
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LLVM has a crash on Windows x86-Debug. This blocks us from issuing a binary release on that platform. Opening this issue to track updates to that bug.

https://bugs.llvm.org/show_bug.cgi?id=46176
@alexreinking alexreinking added the build Issues related to building Halide and with CI label Jun 16, 2020
@alexreinking alexreinking added this to To do in Build system improvements via automation Jun 16, 2020
@alexreinking alexreinking self-assigned this Aug 9, 2020
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Craig Topper replied with an objection to the repro, but applying his patch had no effect. I replied with this result and a reference to the LLVM code from which the reproducer was derived.

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Reid Kleckner reproduced the error and found it is likely an MSVC compiler bug.

https://developercommunity.visualstudio.com/content/problem/1179643/msvc-copies-overaligned-non-trivially-copyable-par.html

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abadams commented Sep 10, 2020

I love this. We can't compile because there's a bug in the compiler that compiles the compiler we built our compiler on.

@alexreinking alexreinking moved this from To do to In progress in Build system improvements Sep 17, 2020
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MSVC confirmed the compiler bug and will ship a fix in the next release.

https://developercommunity2.visualstudio.com/t/msvc-copies-overaligned-non-trivially-copyable-par/1179643?from=email&viewtype=all#T-N1234878

@alexreinking alexreinking added this to the Eventually milestone Dec 11, 2020
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We're working around this on buildbots now and it's fixed in LLVM trunk anyway. Closing.

Build system improvements automation moved this from In progress to Done Feb 14, 2021
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alexreinking commented Mar 5, 2021 •
edited

This compiler bug was reported fixed on Mar 02, 2021 -- https://developercommunity2.visualstudio.com/t/Incorrect-Code-Gen--Missing-Error/831543

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