diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
index 599f79d011989..f68f4e71520b3 100644
--- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
@@ -527,6 +527,12 @@ LLVMRustCreateAttrNoValue(LLVMContextRef C, LLVMRustAttributeKind RustAttr) {
         *unwrap(C), CaptureInfo(CaptureComponents::Address |
                                 CaptureComponents::ReadProvenance)));
   }
+#endif
+#if LLVM_VERSION_GE(23, 0)
+  if (RustAttr == LLVMRustAttributeKind::DeadOnReturn) {
+    return wrap(Attribute::getWithDeadOnReturnInfo(*unwrap(C),
+                                                   llvm::DeadOnReturnInfo()));
+  }
 #endif
   return wrap(Attribute::get(*unwrap(C), fromRust(RustAttr)));
 }
diff --git a/tests/codegen-llvm/addr-of-mutate.rs b/tests/codegen-llvm/addr-of-mutate.rs
index d59d85af62a91..d1939391b25de 100644
--- a/tests/codegen-llvm/addr-of-mutate.rs
+++ b/tests/codegen-llvm/addr-of-mutate.rs
@@ -5,7 +5,7 @@
 // Test for the absence of `readonly` on the argument when it is mutated via `&raw const`.
 // See <https://github.com/rust-lang/rust/issues/111502>.
 
-// CHECK: i8 @foo(ptr{{( dead_on_return)?}} noalias noundef align 1{{( captures\(address\))?}} dereferenceable(128) %x)
+// CHECK: i8 @foo(ptr{{( dead_on_return)?}} noalias noundef align 1{{( captures\(address\))?}}{{( dead_on_return)?}} dereferenceable(128) %x)
 #[no_mangle]
 pub fn foo(x: [u8; 128]) -> u8 {
     let ptr = core::ptr::addr_of!(x).cast_mut();
@@ -15,7 +15,7 @@ pub fn foo(x: [u8; 128]) -> u8 {
     x[0]
 }
 
-// CHECK: i1 @second(ptr{{( dead_on_return)?}} noalias noundef align {{[0-9]+}}{{( captures\(address\))?}} dereferenceable({{[0-9]+}}) %a_ptr_and_b)
+// CHECK: i1 @second(ptr{{( dead_on_return)?}} noalias noundef align {{[0-9]+}}{{( captures\(address\))?}}{{( dead_on_return)?}} dereferenceable({{[0-9]+}}) %a_ptr_and_b)
 #[no_mangle]
 pub unsafe fn second(a_ptr_and_b: (*mut (i32, bool), (i64, bool))) -> bool {
     let b_bool_ptr = core::ptr::addr_of!(a_ptr_and_b.1.1).cast_mut();
@@ -24,7 +24,7 @@ pub unsafe fn second(a_ptr_and_b: (*mut (i32, bool), (i64, bool))) -> bool {
 }
 
 // If going through a deref (and there are no other mutating accesses), then `readonly` is fine.
-// CHECK: i1 @third(ptr{{( dead_on_return)?}} noalias noundef readonly align {{[0-9]+}}{{( captures\(none\))?}} dereferenceable({{[0-9]+}}) %a_ptr_and_b)
+// CHECK: i1 @third(ptr{{( dead_on_return)?}} noalias noundef readonly align {{[0-9]+}}{{( captures\(none\))?}}{{( dead_on_return)?}} dereferenceable({{[0-9]+}}) %a_ptr_and_b)
 #[no_mangle]
 pub unsafe fn third(a_ptr_and_b: (*mut (i32, bool), (i64, bool))) -> bool {
     let b_bool_ptr = core::ptr::addr_of!((*a_ptr_and_b.0).1).cast_mut();
diff --git a/tests/codegen-llvm/function-arguments.rs b/tests/codegen-llvm/function-arguments.rs
index 4d557470504e0..b5febca3b87b5 100644
--- a/tests/codegen-llvm/function-arguments.rs
+++ b/tests/codegen-llvm/function-arguments.rs
@@ -134,7 +134,7 @@ pub fn mutable_notunpin_borrow(_: &mut NotUnpin) {}
 #[no_mangle]
 pub fn notunpin_borrow(_: &NotUnpin) {}
 
-// CHECK: @indirect_struct(ptr{{( dead_on_return)?}} noalias noundef readonly align 4{{( captures\(none\))?}} dereferenceable(32) %_1)
+// CHECK: @indirect_struct(ptr{{( dead_on_return)?}} noalias noundef readonly align 4{{( captures\(none\))?}}{{( dead_on_return)?}} dereferenceable(32) %_1)
 #[no_mangle]
 pub fn indirect_struct(_: S) {}
 
diff --git a/tests/codegen-llvm/loongarch-abi/loongarch64-lp64d-abi.rs b/tests/codegen-llvm/loongarch-abi/loongarch64-lp64d-abi.rs
index 546007ab0f2cf..4c61224ac6d8f 100644
--- a/tests/codegen-llvm/loongarch-abi/loongarch64-lp64d-abi.rs
+++ b/tests/codegen-llvm/loongarch-abi/loongarch64-lp64d-abi.rs
@@ -256,7 +256,7 @@ pub struct IntDoubleInt {
     c: i32,
 }
 
-// CHECK: define void @f_int_double_int_s_arg(ptr{{( dead_on_return)?}} noalias noundef align 8{{( captures\(address\))?}} dereferenceable(24) %a)
+// CHECK: define void @f_int_double_int_s_arg(ptr{{( dead_on_return)?}} noalias noundef align 8{{( captures\(address\))?}}{{( dead_on_return)?}} dereferenceable(24) %a)
 #[no_mangle]
 pub extern "C" fn f_int_double_int_s_arg(a: IntDoubleInt) {}