1 files changed, 22 insertions, 0 deletions
diff --git a/tests/codegen/no-jump-tables.rs b/tests/codegen/no-jump-tables.rs
new file mode 100644
index 000000000..8e2cb4756
--- /dev/null
+++ b/tests/codegen/no-jump-tables.rs
@@ -0,0 +1,22 @@
+// Test that the `no-jump-tables` function attribute are (not) emitted when
+// the `-Zno-jump-tables` flag is (not) set.
+
+// revisions: unset set
+// needs-llvm-components: x86
+// compile-flags: --target x86_64-unknown-linux-gnu
+// [set] compile-flags: -Zno-jump-tables
+
+#![crate_type = "lib"]
+#![feature(no_core, lang_items)]
+#![no_core]
+
+#[lang = "sized"]
+trait Sized {}
+
+#[no_mangle]
+pub fn foo() {
+    // CHECK: @foo() unnamed_addr #0
+
+    // unset-NOT: attributes #0 = { {{.*}}"no-jump-tables"="true"{{.*}} }
+    // set: attributes #0 = { {{.*}}"no-jump-tables"="true"{{.*}} }
+}