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lld 9.0 appears to be optimizing out ctor #43

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jaynus opened this issue Feb 13, 2020 · 4 comments
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lld 9.0 appears to be optimizing out ctor #43

jaynus opened this issue Feb 13, 2020 · 4 comments
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bug Something isn't working help wanted Extra attention is needed

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@jaynus
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jaynus commented Feb 13, 2020 •
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This seems possibly related to dtolnay/inventory#11.

After upgrading to LLVM 9.0.1, it appears my registrations with the inventory crate, using ctor, have dissapeared. Reverting back to LLVM 8.0 resolves the issue.

Specifically, it appears if code in the module is not used, ctor does not run. This wasn't previously the case, so appears to be a new optimization cutting out the registrations from unused modules.
@mmastrac
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This sounds a bit like #27

@jaynus
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jaynus commented Feb 13, 2020

I should clarify; in my case, these are 2 seperate module files in the same crate

@mmastrac mmastrac added bug Something isn't working help wanted Extra attention is needed labels Apr 23, 2020
@dingelish dingelish mentioned this issue May 3, 2020
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@mmastrac
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mmastrac commented Sep 1, 2021

Is this still an issue these days?

@mmastrac
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Closing for now -- #280 may have a solution for +nightly users.

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