Stop clearing box's drop flags early #131146
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r? @wesleywiser rustbot has assigned @wesleywiser. Use |
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Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
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Could you add a "mir opt" test for elaborate drops that shows this behavior? (You can look at /~https://github.com/rust-lang/rust/blob/master/tests/mir-opt/elaborate_box_deref_in_debuginfo.rs for a similar kind of test)
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I forgot to @rustbot ready after responding to the review comments. Apologies. |
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Thanks @beepster4096! @bors r+ |
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…leywiser Stop clearing box's drop flags early Ever since rust-lang#100036, drop flags have been incorrectly cleared when destructors are called. This only does anything in a very specific case involving Box, leading to the fields of the Box not being dropped when they should. This PR fixes that. Fixes rust-lang#131082
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#131146 (Stop clearing box's drop flags early) - rust-lang#133810 (remove unnecessary `eval_verify_bound`) - rust-lang#134745 (Normalize each signature input/output in `typeck_with_fallback` with its own span) - rust-lang#134989 (Lower Guard Patterns to HIR.) - rust-lang#135149 (Use a post-monomorphization typing env when mangling components that come from impls) - rust-lang#135171 (rustdoc: use stable paths as preferred canonical paths) - rust-lang#135200 (rustfmt: drop nightly-gating of the `--style-edition` flag registration) r? `@ghost` `@rustbot` modify labels: rollup
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Ever since #100036, drop flags have been incorrectly cleared when destructors are called. This only does anything in a very specific case involving Box, leading to the fields of the Box not being dropped when they should. This PR fixes that.
Fixes #131082