diff --git a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs
index 834b1d988cb4..f8ee011f559b 100644
--- a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs
+++ b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs
@@ -320,3 +320,18 @@ impl<S: Stage> NoArgsAttributeParser<S> for RustcHasIncoherentInherentImplsParse
     ]);
     const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcHasIncoherentInherentImpls;
 }
+
+pub(crate) struct RustcNounwindParser;
+
+impl<S: Stage> NoArgsAttributeParser<S> for RustcNounwindParser {
+    const PATH: &[Symbol] = &[sym::rustc_nounwind];
+    const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
+        Allow(Target::Fn),
+        Allow(Target::ForeignFn),
+        Allow(Target::Method(MethodKind::Inherent)),
+        Allow(Target::Method(MethodKind::TraitImpl)),
+        Allow(Target::Method(MethodKind::Trait { body: true })),
+    ]);
+    const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcNounwind;
+}
diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs
index 1a06f4edeaa6..e62dbc124eab 100644
--- a/compiler/rustc_attr_parsing/src/context.rs
+++ b/compiler/rustc_attr_parsing/src/context.rs
@@ -78,8 +78,8 @@ use crate::attributes::rustc_internal::{
     RustcLintDiagnosticsParser, RustcLintOptDenyFieldAccessParser, RustcLintOptTyParser,
     RustcLintQueryInstabilityParser, RustcLintUntrackedQueryInformationParser, RustcMainParser,
     RustcMustImplementOneOfParser, RustcNeverReturnsNullPointerParser,
-    RustcNoImplicitAutorefsParser, RustcObjectLifetimeDefaultParser, RustcScalableVectorParser,
-    RustcSimdMonomorphizeLaneLimitParser,
+    RustcNoImplicitAutorefsParser, RustcNounwindParser, RustcObjectLifetimeDefaultParser,
+    RustcScalableVectorParser, RustcSimdMonomorphizeLaneLimitParser,
 };
 use crate::attributes::semantics::MayDangleParser;
 use crate::attributes::stability::{
@@ -296,6 +296,7 @@ attribute_parsers!(
         Single<WithoutArgs<RustcMainParser>>,
         Single<WithoutArgs<RustcNeverReturnsNullPointerParser>>,
         Single<WithoutArgs<RustcNoImplicitAutorefsParser>>,
+        Single<WithoutArgs<RustcNounwindParser>>,
         Single<WithoutArgs<RustcPassIndirectlyInNonRusticAbisParser>>,
         Single<WithoutArgs<RustcReallocatorParser>>,
         Single<WithoutArgs<RustcShouldNotBeCalledOnConstItems>>,
diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
index 1b0427e7e676..e29ba9c8725f 100644
--- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
+++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs
@@ -347,6 +347,9 @@ fn process_builtin_attrs(
                 AttributeKind::RustcAllocatorZeroed => {
                     codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR_ZEROED
                 }
+                AttributeKind::RustcNounwind => {
+                    codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND
+                }
                 _ => {}
             }
         }
@@ -356,7 +359,6 @@ fn process_builtin_attrs(
         };
 
         match name {
-            sym::rustc_nounwind => codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND,
             sym::patchable_function_entry => {
                 codegen_fn_attrs.patchable_function_entry =
                     parse_patchable_function_entry(tcx, attr);
diff --git a/compiler/rustc_hir/src/attrs/data_structures.rs b/compiler/rustc_hir/src/attrs/data_structures.rs
index 5cd508acc567..379ebf648f47 100644
--- a/compiler/rustc_hir/src/attrs/data_structures.rs
+++ b/compiler/rustc_hir/src/attrs/data_structures.rs
@@ -981,6 +981,9 @@ pub enum AttributeKind {
     /// Represents `#[rustc_no_implicit_autorefs]`
     RustcNoImplicitAutorefs,
 
+    /// Represents `#[rustc_nounwind]`
+    RustcNounwind,
+
     /// Represents `#[rustc_object_lifetime_default]`.
     RustcObjectLifetimeDefault,
 
diff --git a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs
index 19243c7d8468..44f040e5fdc8 100644
--- a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs
+++ b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs
@@ -122,6 +122,7 @@ impl AttributeKind {
             RustcMustImplementOneOf { .. } => No,
             RustcNeverReturnsNullPointer => Yes,
             RustcNoImplicitAutorefs => Yes,
+            RustcNounwind => No,
             RustcObjectLifetimeDefault => No,
             RustcPassIndirectlyInNonRusticAbis(..) => No,
             RustcReallocator => No,
diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs
index 3a086ba5ff78..74edff7badba 100644
--- a/compiler/rustc_passes/src/check_attr.rs
+++ b/compiler/rustc_passes/src/check_attr.rs
@@ -322,6 +322,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
                     | AttributeKind::RustcAllocatorZeroedVariant { .. }
                     | AttributeKind::RustcDeallocator
                     | AttributeKind::RustcReallocator
+                    | AttributeKind::RustcNounwind
                 ) => { /* do nothing  */ }
                 Attribute::Unparsed(attr_item) => {
                     style = Some(attr_item.style);
@@ -390,7 +391,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
                             | sym::rustc_partition_reused
                             | sym::rustc_partition_codegened
                             | sym::rustc_expected_cgu_reuse
-                            | sym::rustc_nounwind
                             // crate-level attrs, are checked below
                             | sym::feature
                             | sym::register_tool