granite-rust/compiler/rustc_mir_transform
Matthias Krüger 8a61ae0479
Rollup merge of #92203 - Aaron1011:mir-adt-def, r=oli-obk
Store a `DefId` instead of an `AdtDef` in `AggregateKind::Adt`

The `AggregateKind` enum ends up in the final mir `Body`. Currently,
any changes to `AdtDef` (regardless of how significant they are)
will legitimately cause the overall result of `optimized_mir` to change,
invalidating any codegen re-use involving that mir.

This will get worse once we start hashing the `Span` inside `FieldDef`
(which is itself contained in `AdtDef`).

To try to reduce these kinds of invalidations, this commit changes
`AggregateKind::Adt` to store just the `DefId`, instead of the full
`AdtDef`. This allows the result of `optimized_mir` to be unchanged
if the `AdtDef` changes in a way that doesn't actually affect any
of the MIR we build.
2021-12-23 17:48:31 +01:00
..
src Rollup merge of #92203 - Aaron1011:mir-adt-def, r=oli-obk 2021-12-23 17:48:31 +01:00
Cargo.toml Remove re-export. 2021-10-03 16:08:54 +02:00