bors 9af6fee87d Auto merge of #113128 - WaffleLapkin:become_trully_unuwuable, r=oli-obk,RalfJung ... Support tail calls in mir via `TerminatorKind::TailCall` This is one of the interesting bits in tail call implementation — MIR support. This adds a new `TerminatorKind` which represents a tail call: ```rust TailCall { func: Operand<'tcx>, args: Vec<Operand<'tcx>>, fn_span: Span, }, ``` *Structurally* this is very similar to a normal `Call` but is missing a few fields: - `destination` — tail calls don't write to destination, instead they pass caller's destination to the callee (such that eventual `return` will write to the caller of the function that used tail call) - `target` — similarly to `destination` tail calls pass the caller's return address to the callee, so there is nothing to do - `unwind` — I _think_ this is applicable too, although it's a bit confusing - `call_source` — `become` forbids operators and is not created as a lowering of something else; tail calls always come from HIR (at least for now) It might be helpful to read the interpreter implementation to understand what `TailCall` means exactly, although I've tried documenting it too. ----- There are a few `FIXME`-questions still left, ideally we'd be able to answer them during review ':) ----- r? `@oli-obk` cc `@scottmcm` `@DrMeepster` `@JakobDegen`		2024-07-08 04:35:04 +00:00
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src	Auto merge of #113128 - WaffleLapkin:become_trully_unuwuable, r=oli-obk,RalfJung	2024-07-08 04:35:04 +00:00
Cargo.toml	bump itertools to 0.12	2024-03-08 12:34:05 +03:00
messages.ftl	Better account for FnOnce in move errors	2024-04-11 16:41:42 +00:00