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| author | Jubilee <workingjubilee@gmail.com> | 2025-02-20 14:58:18 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-20 14:58:18 -0800 |
| commit | 8c9e3749a1a580d881fb00fcfe9e6677c557ad0a (patch) | |
| tree | 2cd87bf6c1f936280b57ea87b7c5edf1671c4902 /compiler/rustc_mir_transform/src/coverage/graph.rs | |
| parent | 6d74563b20b0e585d95b1dbdb701d8710633f1e7 (diff) | |
| parent | e3f5db07e0daa833c51c335fa07d87affd8a8bf9 (diff) | |
| download | rust-8c9e3749a1a580d881fb00fcfe9e6677c557ad0a.tar.gz rust-8c9e3749a1a580d881fb00fcfe9e6677c557ad0a.zip | |
Rollup merge of #136985 - zachs18:backend-repr-remove-uninhabited, r=workingjubilee
Do not ignore uninhabited types for function-call ABI purposes. (Remove BackendRepr::Uninhabited) Accepted MCP: https://github.com/rust-lang/compiler-team/issues/832 Fixes #135802 Do not consider the inhabitedness of a type for function call ABI purposes. * Remove the [`rustc_abi::BackendRepr::Uninhabited`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_abi/enum.BackendRepr.html) variant * Instead calculate the `BackendRepr` of uninhabited types "normally" (as though they were not uninhabited "at the top level", but still considering inhabitedness of variants to determine enum layout, etc) * Add an `uninhabited: bool` field to [`rustc_abi::LayoutData`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_abi/struct.LayoutData.html) so inhabitedness of a `LayoutData` can still be queried when necessary (e.g. when determining if an enum variant needs a tag value allocated to it). This should not affect type layouts (size/align/field offset); this should only affect function call ABI, and only of uninhabited types. cc ``@RalfJung``
Diffstat (limited to 'compiler/rustc_mir_transform/src/coverage/graph.rs')
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