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-rw-r--r--compiler/rustc_attr_parsing/messages.ftl1
-rw-r--r--compiler/rustc_attr_parsing/src/session_diagnostics.rs1
2 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_attr_parsing/messages.ftl b/compiler/rustc_attr_parsing/messages.ftl
index 35ff48cb5f2..de22ea322c7 100644
--- a/compiler/rustc_attr_parsing/messages.ftl
+++ b/compiler/rustc_attr_parsing/messages.ftl
@@ -132,6 +132,7 @@ attr_parsing_unknown_version_literal =
 attr_parsing_unrecognized_repr_hint =
     unrecognized representation hint
     .help = valid reprs are `Rust` (default), `C`, `align`, `packed`, `transparent`, `simd`, `i8`, `u8`, `i16`, `u16`, `i32`, `u32`, `i64`, `u64`, `i128`, `u128`, `isize`, `usize`
+    .note = for more information, visit <https://doc.rust-lang.org/reference/type-layout.html?highlight=repr#representations>
 
 attr_parsing_unstable_cfg_target_compact =
     compact `cfg(target(..))` is experimental and subject to change
diff --git a/compiler/rustc_attr_parsing/src/session_diagnostics.rs b/compiler/rustc_attr_parsing/src/session_diagnostics.rs
index 1de25ca252b..e4aae13f790 100644
--- a/compiler/rustc_attr_parsing/src/session_diagnostics.rs
+++ b/compiler/rustc_attr_parsing/src/session_diagnostics.rs
@@ -498,6 +498,7 @@ pub(crate) struct ReprIdent {
 #[derive(Diagnostic)]
 #[diag(attr_parsing_unrecognized_repr_hint, code = E0552)]
 #[help]
+#[note]
 pub(crate) struct UnrecognizedReprHint {
     #[primary_span]
     pub span: Span,