bors ce0d64e03e Auto merge of #85546 - hyd-dev:unwind, r=RalfJung ... const-eval: disallow unwinding across functions that `!fn_can_unwind()` Following https://github.com/rust-lang/miri/pull/1776#discussion_r633074343, so r? `@RalfJung` This PR turns `unwind` in `StackPopCleanup::Goto` into a new enum `StackPopUnwind`, with a `NotAllowed` variant to indicate that unwinding is not allowed. This variant is chosen based on `rustc_middle::ty::layout::fn_can_unwind()` in `eval_fn_call()` when pushing the frame. A check is added in `unwind_to_block()` to report UB if unwinding happens across a `StackPopUnwind::NotAllowed` frame. Tested with Miri `HEAD` with [minor changes](https://github.com/rust-lang/miri/compare/HEAD..9cf3c7f0d86325a586fbcbf2acdc9232b861f1d8) and the rust-lang/miri#1776 branch with [these changes](d866c1c52f..626638fbfe).		2021-05-28 08:49:48 +00:00
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src	Auto merge of #85546 - hyd-dev:unwind, r=RalfJung	2021-05-28 08:49:48 +00:00
Cargo.toml	bumped smallvec deps	2021-02-14 18:03:11 +03:00