1 files changed, 18 insertions, 0 deletions
diff --git a/tests/run-make/intrinsic-unreachable/exit-unreachable.rs b/tests/run-make/intrinsic-unreachable/exit-unreachable.rs
new file mode 100644
index 000000000..ec85db733
--- /dev/null
+++ b/tests/run-make/intrinsic-unreachable/exit-unreachable.rs
@@ -0,0 +1,18 @@
+#![feature(core_intrinsics)]
+#![crate_type="lib"]
+use std::arch::asm;
+
+use std::intrinsics;
+
+#[allow(unreachable_code)]
+pub fn exit(n: usize) -> i32 {
+    unsafe {
+        // Pretend this asm is an exit() syscall.
+        asm!("/*{0}*/", in(reg) n);
+        intrinsics::unreachable()
+    }
+    // This return value is just here to generate some extra code for a return
+    // value, making it easier for the test script to detect whether the
+    // compiler deleted it.
+    42
+}