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-rw-r--r--src/librustdoc/clean/mod.rs8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index d1c18821ea6..2281a9f69ee 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -26,6 +26,8 @@ use rustc_mir::const_eval::{is_const_fn, is_unstable_const_fn};
 use rustc_span::hygiene::{AstPass, MacroKind};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::{self, ExpnKind};
+use rustc_target::spec::abi::Abi;
+use rustc_typeck::check::intrinsic::intrinsic_operation_unsafety;
 use rustc_typeck::hir_ty_to_ty;
 
 use std::collections::hash_map::Entry;
@@ -2132,7 +2134,11 @@ impl Clean<Item> for (&hir::ForeignItem<'_>, Option<Symbol>) {
                         decl,
                         generics,
                         header: hir::FnHeader {
-                            unsafety: hir::Unsafety::Unsafe,
+                            unsafety: if abi == Abi::RustIntrinsic {
+                                intrinsic_operation_unsafety(item.ident.name)
+                            } else {
+                                hir::Unsafety::Unsafe
+                            },
                             abi,
                             constness: hir::Constness::NotConst,
                             asyncness: hir::IsAsync::NotAsync,