1 files changed, 13 insertions, 0 deletions
diff --git a/tests/codegen/ffi-const.rs b/tests/codegen/ffi-const.rs
new file mode 100644
index 000000000..937205034
--- /dev/null
+++ b/tests/codegen/ffi-const.rs
@@ -0,0 +1,13 @@
+// compile-flags: -C no-prepopulate-passes
+#![crate_type = "lib"]
+#![feature(ffi_const)]
+
+pub fn bar() { unsafe { foo() } }
+
+extern "C" {
+    // CHECK-LABEL: declare{{.*}}void @foo()
+    // CHECK-SAME: [[ATTRS:#[0-9]+]]
+    // The attribute changed from `readnone` to `memory(none)` with LLVM 16.0.
+    // CHECK-DAG: attributes [[ATTRS]] = { {{.*}}{{readnone|memory\(none\)}}{{.*}} }
+    #[ffi_const] pub fn foo();
+}