Rollup merge of rust-lang#107525 - RalfJung:pointee-info, r=eddyb

PointeeInfo is advisory only rust-lang#107248 fixed PointeeInfo being used in ways that don't actually work. Hopefully this comments helps avoid such issues in the future. Cc `@eddyb`
GuillaumeGomez · Jan 31, 2023 · b1d6270 · b1d6270
2 parents e478bf0 + c8e8d6e
commit b1d6270
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs
@@ -1456,6 +1456,8 @@ pub enum PointerKind {
     UniqueOwned,
 }
 
+/// Note that this information is advisory only, and backends are free to ignore it.
+/// It can only be used to encode potential optimizations, but no critical information.
 #[derive(Copy, Clone, Debug)]
 pub struct PointeeInfo {
     pub size: Size,