1 files changed, 15 insertions, 0 deletions
diff --git a/tests/mir-opt/dead-store-elimination/call_arg_copy.rs b/tests/mir-opt/dead-store-elimination/call_arg_copy.rs
new file mode 100644
index 000000000..41f91fc13
--- /dev/null
+++ b/tests/mir-opt/dead-store-elimination/call_arg_copy.rs
@@ -0,0 +1,15 @@
+// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
+// unit-test: DeadStoreElimination
+// compile-flags: -Zmir-enable-passes=+CopyProp
+
+#[inline(never)]
+fn use_both(_: i32, _: i32) {}
+
+// EMIT_MIR call_arg_copy.move_simple.DeadStoreElimination.diff
+fn move_simple(x: i32) {
+    use_both(x, x);
+}
+
+fn main() {
+    move_simple(1);
+}