1 files changed, 35 insertions, 0 deletions
diff --git a/tests/assembly-llvm/x86_64-no-jump-tables.rs b/tests/assembly-llvm/x86_64-no-jump-tables.rs
new file mode 100644
index 00000000000..bb10042d8f6
--- /dev/null
+++ b/tests/assembly-llvm/x86_64-no-jump-tables.rs
@@ -0,0 +1,35 @@
+// Test that jump tables are (not) emitted when the `-Zno-jump-tables`
+// flag is (not) set.
+
+//@ revisions: unset set
+//@ assembly-output: emit-asm
+//@ compile-flags: -Copt-level=3
+//@ [set] compile-flags: -Zno-jump-tables
+//@ only-x86_64
+//@ ignore-sgx
+
+#![crate_type = "lib"]
+
+extern "C" {
+    fn bar1();
+    fn bar2();
+    fn bar3();
+    fn bar4();
+    fn bar5();
+    fn bar6();
+}
+
+// CHECK-LABEL: foo:
+#[no_mangle]
+pub unsafe fn foo(x: i32) {
+    // unset: LJTI0_0
+    // set-NOT: LJTI0_0
+    match x {
+        1 => bar1(),
+        2 => bar2(),
+        3 => bar3(),
+        4 => bar4(),
+        5 => bar5(),
+        _ => bar6(),
+    }
+}