diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs
index 9a2908c275da8..4820588df25cd 100644
--- a/library/core/src/cell.rs
+++ b/library/core/src/cell.rs
@@ -1815,7 +1815,7 @@ impl<T> UnsafeCell<T> {
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_const_stable(feature = "const_unsafe_cell_new", since = "1.32.0")]
-    #[inline]
+    #[inline(always)]
     pub const fn new(value: T) -> UnsafeCell<T> {
         UnsafeCell { value }
     }
@@ -1831,7 +1831,7 @@ impl<T> UnsafeCell<T> {
     ///
     /// let five = uc.into_inner();
     /// ```
-    #[inline]
+    #[inline(always)]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_const_unstable(feature = "const_cell_into_inner", issue = "78729")]
     pub const fn into_inner(self) -> T {
@@ -1856,7 +1856,7 @@ impl<T: ?Sized> UnsafeCell<T> {
     ///
     /// let five = uc.get();
     /// ```
-    #[inline]
+    #[inline(always)]
     #[stable(feature = "rust1", since = "1.0.0")]
     #[rustc_const_stable(feature = "const_unsafecell_get", since = "1.32.0")]
     pub const fn get(&self) -> *mut T {
@@ -1881,7 +1881,7 @@ impl<T: ?Sized> UnsafeCell<T> {
     ///
     /// assert_eq!(*c.get_mut(), 6);
     /// ```
-    #[inline]
+    #[inline(always)]
     #[stable(feature = "unsafe_cell_get_mut", since = "1.50.0")]
     pub fn get_mut(&mut self) -> &mut T {
         &mut self.value
@@ -1914,7 +1914,7 @@ impl<T: ?Sized> UnsafeCell<T> {
     ///
     /// assert_eq!(uc.into_inner(), 5);
     /// ```
-    #[inline]
+    #[inline(always)]
     #[unstable(feature = "unsafe_cell_raw_get", issue = "66358")]
     pub const fn raw_get(this: *const Self) -> *mut T {
         // We can just cast the pointer from `UnsafeCell<T>` to `T` because of