Move generator check earlier in inlining. #91975
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…askrgr Rollup of 7 pull requests Successful merges: - rust-lang#87901 (Fix suggestion of additional `pub` when using `pub pub fn ...`) - rust-lang#89090 (Lint bare traits in AstConv.) - rust-lang#91818 (Show the unused type for `unused_results` lint) - rust-lang#91910 (miri: lift restriction on extern types being the only field in a struct) - rust-lang#91928 (Constify (most) `Option` methods) - rust-lang#91975 (Move generator check earlier in inlining.) - rust-lang#92016 (builtin_macros: allow external consumers for AsmArgs parsing) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Inlining into generator may create references to other generators. For instance, inlining
Pin::<&mut from_generator::GenFuture<[generator1]>>::new_uncheckedintogenerator2. This cross reference can then create cycles when computing inlining forgenerator1.In order to avoid this kind of surprises, we forbid all inlining into generators, and rely on LLVM to do the right thing. The existing
remove-zst-query-cyclealready ICEs in inline-mir mode, so we use it as test.Split from #91743.