retry with Reveal::All in validate::mir_assign_valid_types
#105454
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Reveal::All in validate::mir_assign_valid_types
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…=jackh726 use the correct `Reveal` during validation supersedes rust-lang#105454. Deals with rust-lang#105009 (comment), not closing rust-lang#105009 as the ICE may leak into beta The issue was the following: - we optimize the mir, using `Reveal::All` - some optimization relies on the hidden type of an opaque type - we then validate using `Reveal::UserFacing` again which is not able to observe the hidden type r? `@jackh726`
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Jan 6, 2023
…=jackh726 use the correct `Reveal` during validation supersedes rust-lang#105454. Deals with rust-lang#105009 (comment), not closing rust-lang#105009 as the ICE may leak into beta The issue was the following: - we optimize the mir, using `Reveal::All` - some optimization relies on the hidden type of an opaque type - we then validate using `Reveal::UserFacing` again which is not able to observe the hidden type r? `@jackh726`
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This deals with the minimal example in #105009 (comment).
As stated in the FIXME, I don't yet know why that would be needed but it should be enough to fix this regression.
r? types