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const generics: cycle error due to a lack of lazy normalization #68249
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A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)A-lazy-normalizationArea: Lazy normalization (tracking issue: #60471)Area: Lazy normalization (tracking issue: #60471)C-bugCategory: This is a bug.Category: This is a bug.F-const_generics`#![feature(const_generics)]``#![feature(const_generics)]`T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
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A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)A-lazy-normalizationArea: Lazy normalization (tracking issue: #60471)Area: Lazy normalization (tracking issue: #60471)C-bugCategory: This is a bug.Category: This is a bug.F-const_generics`#![feature(const_generics)]``#![feature(const_generics)]`T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
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Consider this example:
It causes a cycle error:
It should be compiled, but cycle error occurs due to a lack of lazy normalization.
It's added to ui test as a regression test of #62879 (src/test/ui/const-generics/issue-62879.rs) in #68236, but we should still improve current behavior.