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Add simple async drop glue generation

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Explainer: https://zetanumbers.github.io/book/async-drop-design.html

https://github.com/rust-lang/rust/pull/121801
This commit is contained in:
zetanumbers 2024-02-13 12:31:41 +03:00 • committed by Daria Sukhonina
parent 1dea922ea6
commit 24a24ec6ba
40 changed files with 1921 additions and 20 deletions
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6
compiler/rustc_mir_transform/src/inline/cycle.rs
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@ -94,8 +94,10 @@ pub(crate) fn mir_callgraph_reachable<'tcx>(
| InstanceDef::CloneShim(..) => {}
// This shim does not call any other functions, thus there can be no recursion.
InstanceDef::FnPtrAddrShim(..) => continue,
InstanceDef::DropGlue(..) => {
InstanceDef::FnPtrAddrShim(..) => {
continue;
}
InstanceDef::DropGlue(..) | InstanceDef::AsyncDropGlueCtorShim(..) => {
// FIXME: A not fully instantiated drop shim can cause ICEs if one attempts to
// have its MIR built. Likely oli-obk just screwed up the `ParamEnv`s, so this
// needs some more analysis.