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Fix subtyping freeze in 1.9.0 #49875

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merged 2 commits into from
May 19, 2023
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kpamnany
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Closes #49857.

As suggested by @N5N3, this disables the slow path in local_forall_exists_subtype as an alternative to backing out #48441.

Confirmed that it fixes #49857. Also confirmed that the test added in #49014 passes. However, as with #49859, this fix will reopen #40865.

Cc: @quinnj and @NHDaly

@kpamnany
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@AzamatB: merging this will reintroduce the subtype error you reported in #40865 to Julia 1.9.1. However it will remain fixed on 1.9.0 and on master.

@KristofferC: can this go to 1.9.1?

test/subtype.jl Outdated Show resolved Hide resolved
@kpamnany
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Check failure is in llvmpasses for julia-licm.ll. How to fix? @vtjnash or @vchuravy?

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Those are present on the backport branch as well.

@kpamnany
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Remaining failures seem to be the same ones as in backports-release-1.9.

@KristofferC KristofferC merged commit 47b1608 into backports-release-1.9 May 19, 2023
@KristofferC KristofferC deleted the kp/fix-49857-take2 branch May 19, 2023 09:37
kpamnany added a commit to RelationalAI/julia that referenced this pull request May 22, 2023
* Disable slow path to handle Union explosion

* 3 tests are broken due to disabling slow path
@NHDaly
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NHDaly commented May 22, 2023

Glad to see this merged. Great work everyone! Thanks @N5N3, @kpamnany, @KristofferC! :)

KristofferC pushed a commit that referenced this pull request May 27, 2023
* Disable slow path to handle Union explosion

* 3 tests are broken due to disabling slow path
kpamnany added a commit that referenced this pull request Jun 21, 2023
* Disable slow path to handle Union explosion

* 3 tests are broken due to disabling slow path
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5 participants