bors 99cb42c296 Auto merge of #124662 - zetanumbers:needs_async_drop, r=oli-obk ...

Implement `needs_async_drop` in rustc and optimize async drop glue

This PR expands on #121801 and implements `Ty::needs_async_drop` which works almost exactly the same as `Ty::needs_drop`, which is needed for #123948.

Also made compiler's async drop code to look more like compiler's regular drop code, which enabled me to write an optimization where types which do not use `AsyncDrop` can simply forward async drop glue to `drop_in_place`. This made size of the async block from the [async_drop test](https://github.com/zetanumbers/rust/blob/67980dd6fb11917d23d01a19c2cf4cfc3978aac8/tests/ui/async-await/async-drop.rs) to decrease by 12%.

2024-05-31 10:12:24 +00:00

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src

Auto merge of #124662 - zetanumbers:needs_async_drop, r=oli-obk

2024-05-31 10:12:24 +00:00

Cargo.toml

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